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<a href="theory_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*****************************************************************************/</span><span class="comment"></span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">/*!</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * \file theory.h</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * \brief Generic API for Theories plus methods commonly used by theories</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * </span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * Author: Clark Barrett</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * </span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * Created: Sat Nov 30 23:30:15 2002</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * <hr></span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * License to use, copy, modify, sell and/or distribute this software</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * and its documentation for any purpose is hereby granted without</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * royalty, subject to the terms and conditions defined in the \ref</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * LICENSE file provided with this distribution.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * </span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * <hr></span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * </span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">/*****************************************************************************/</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#ifndef _cvc3__include__theory_h_</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor"></span><span class="preprocessor">#define _cvc3__include__theory_h_</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "<a class="code" href="expr__stream_8h.html">expr_stream.h</a>"</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "<a class="code" href="common__proof__rules_8h.html">common_proof_rules.h</a>"</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "<a class="code" href="cdlist_8h.html">cdlist.h</a>"</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">namespace </span>CVC3 {</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">class </span>TheoryCore;</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">class </span>Theorem;</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">class </span>Type;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">/************************************************************************/</span><span class="comment"></span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment">/*!</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> *\defgroup Theories Theories</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> *\ingroup VC</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> *\brief Theories</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> *@{</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment">/***********************************************************************/</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment">/*****************************************************************************/</span><span class="comment"></span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment">/*!</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> *\anchor Theory</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> *\class Theory</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> *\brief Base class for theories</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"> * Author: Clark Barrett</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"> * Created: Thu Jan 30 16:37:56 2003</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> * This is an abstract class which all theories should inherit from. In</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> * addition to providing an abstract theory interface, it provides access</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> * functions to core functionality. However, in order to avoid duplicating the</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> * data structures which implement this functionality, all the functionality is</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> * stored in a separate class (which actually derives from this one) called</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> * TheoryCore. These two classes work closely together to provide the core</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"> * functionality.</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment">/*****************************************************************************/</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div>
<div class="line"><a name="l00064"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html"> 64</a></span> <span class="keyword">class </span><a class="code" href="classCVC3_1_1Theory.html" title="Base class for theories.">Theory</a> {</div>
<div class="line"><a name="l00065"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#acaa2f18ede56d1a823f3f28bcdeccde2"> 65</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classCVC3_1_1TheoryCore.html" title="This theory handles the built-in logical connectives plus equality. It also handles the registration ...">TheoryCore</a>;</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="keyword">private</span>:</div>
<div class="line"><a name="l00067"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#ad756f41e88f25eec335c9c1c004ae61f"> 67</a></span>  <a class="code" href="classCVC3_1_1ExprManager.html">ExprManager</a>* <a class="code" href="classCVC3_1_1Theory.html#ad756f41e88f25eec335c9c1c004ae61f">d_em</a>;</div>
<div class="line"><a name="l00068"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a61d131675cc0db6a1743f1fe32b327dc"> 68</a></span>  <a class="code" href="classCVC3_1_1TheoryCore.html" title="This theory handles the built-in logical connectives plus equality. It also handles the registration ...">TheoryCore</a>* <a class="code" href="classCVC3_1_1Theory.html#a61d131675cc0db6a1743f1fe32b327dc" title="Provides the core functionality.">d_theoryCore</a>; <span class="comment">//!< Provides the core functionality</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a59d055f2cf01f484ce36d56ddb82c8f8"> 69</a></span> <span class="comment"></span> <a class="code" href="classCVC3_1_1CommonProofRules.html">CommonProofRules</a>* <a class="code" href="classCVC3_1_1Theory.html#a59d055f2cf01f484ce36d56ddb82c8f8" title="Commonly used proof rules.">d_commonRules</a>; <span class="comment">//!< Commonly used proof rules</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a1e1919bd500a53974258165b80119836"> 70</a></span> <span class="comment"></span> std::string <a class="code" href="classCVC3_1_1Theory.html#a1e1919bd500a53974258165b80119836" title="Name of the theory (for debugging)">d_name</a>; <span class="comment">//!< Name of the theory (for debugging)</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment"></span><span class="comment"></span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment"> //! Private default constructor.</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"></span><span class="comment"> /*! Everyone besides TheoryCore has to use the public constructor</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"> which sets up all the provided functionality automatically.</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <a class="code" href="classCVC3_1_1Theory.html#a088f7f57d4e8db8e46af066e245c5ca9" title="Private default constructor.">Theory</a>(<span class="keywordtype">void</span>);</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00079"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a262fdc338527489b376ec181ecc38ddc"> 79</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theory.html#a262fdc338527489b376ec181ecc38ddc">d_theoryUsed</a>; <span class="comment">//! Whether theory has been used (for smtlib translator)</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment"></span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="keyword">public</span>:<span class="comment"></span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment"> //! Exposed constructor.</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"></span><span class="comment"> /*! Note that each instance of Theory must have a name (mostly for</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment"> debugging purposes). */</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <a class="code" href="classCVC3_1_1Theory.html#a088f7f57d4e8db8e46af066e245c5ca9" title="Private default constructor.">Theory</a>(<a class="code" href="classCVC3_1_1TheoryCore.html" title="This theory handles the built-in logical connectives plus equality. It also handles the registration ...">TheoryCore</a>* <a class="code" href="classCVC3_1_1Theory.html#a90684d2a97738341c00f8f9c99af7b66" title="Get a pointer to theoryCore.">theoryCore</a>, <span class="keyword">const</span> std::string& name);<span class="comment"></span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment"> //! Destructor</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment"></span> <span class="keyword">virtual</span> <a class="code" href="classCVC3_1_1Theory.html#ac4527f940d280bca9ae279520fd1bc17" title="Destructor.">~Theory</a>(<span class="keywordtype">void</span>);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment"></span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment"> //! Access to ExprManager</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#abc2e30308c9e1f3cf752cfe8d939df1e"> 90</a></span> <span class="comment"></span> <a class="code" href="classCVC3_1_1ExprManager.html">ExprManager</a>* <a class="code" href="classCVC3_1_1Theory.html#abc2e30308c9e1f3cf752cfe8d939df1e" title="Access to ExprManager.">getEM</a>() { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#ad756f41e88f25eec335c9c1c004ae61f">d_em</a>; }</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment"></span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment"> //! Get a pointer to theoryCore</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a90684d2a97738341c00f8f9c99af7b66"> 93</a></span> <span class="comment"></span> <a class="code" href="classCVC3_1_1TheoryCore.html" title="This theory handles the built-in logical connectives plus equality. It also handles the registration ...">TheoryCore</a>* <a class="code" href="classCVC3_1_1Theory.html#a90684d2a97738341c00f8f9c99af7b66" title="Get a pointer to theoryCore.">theoryCore</a>() { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#a61d131675cc0db6a1743f1fe32b327dc" title="Provides the core functionality.">d_theoryCore</a>; }</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment"></span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment"> //! Get a pointer to common proof rules</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a50802b148e8192178cf790e6c45ddff3"> 96</a></span> <span class="comment"></span> <a class="code" href="classCVC3_1_1CommonProofRules.html">CommonProofRules</a>* <a class="code" href="classCVC3_1_1Theory.html#a50802b148e8192178cf790e6c45ddff3" title="Get a pointer to common proof rules.">getCommonRules</a>() { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#a59d055f2cf01f484ce36d56ddb82c8f8" title="Commonly used proof rules.">d_commonRules</a>; }</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment"></span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"> //! Get the name of the theory (for debugging purposes)</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a4270eb556496ee10472b478b5792751c"> 99</a></span> <span class="comment"></span> <span class="keyword">const</span> std::string& <a class="code" href="classCVC3_1_1Theory.html#a4270eb556496ee10472b478b5792751c" title="Get the name of the theory (for debugging purposes)">getName</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#a1e1919bd500a53974258165b80119836" title="Name of the theory (for debugging)">d_name</a>; }</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment"></span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment"> //! Set the "used" flag on this theory (for smtlib translator)</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#adaea4aa951adbe1561f7b445517378b6"> 102</a></span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#adaea4aa951adbe1561f7b445517378b6" title="Set the "used" flag on this theory (for smtlib translator)">setUsed</a>() { <a class="code" href="classCVC3_1_1Theory.html#a262fdc338527489b376ec181ecc38ddc">d_theoryUsed</a> = <span class="keyword">true</span>; }<span class="comment"></span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment"> //! Get whether theory has been used (for smtlib translator)</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a5dad9fa356483782703a1ef1024d2a74"> 104</a></span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theory.html#a5dad9fa356483782703a1ef1024d2a74" title="Get whether theory has been used (for smtlib translator)">theoryUsed</a>() { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#a262fdc338527489b376ec181ecc38ddc">d_theoryUsed</a>; }</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="comment">/***************************************************************************/</span><span class="comment"></span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment"> /*!</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="comment"> *\defgroup Theory_API Abstract Theory Interface</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="comment"> *\anchor theory_api</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="comment"> *\ingroup Theories</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment"> *\brief Abstract Theory Interface</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="comment"> * These are the theory-specific methods which provide the decision procedure</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="comment"> * functionality for a new theory. At the very least, a theory must</span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment"> * implement the checkSat method. The other methods can be used to make the</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment"> * implementation more convenient. For more information on this API, see</span></div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment"> * Clark Barrett's PhD dissertation and \ref theory_api_howto.</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment"> *@{</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="comment">/***************************************************************************/</span></div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="comment"></span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="comment"> //! Notify theory of a new shared term</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment"></span><span class="comment"> /*! When a term e associated with theory i occurs as a child of an expression</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment"> associated with theory j, the framework calls i->addSharedTerm(e) and</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment"> j->addSharedTerm(e)</span></div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"><a class="code" href="group__Theory__API.html#ga664e787b0eb7e5e6fdb03efeb409d38a"> 127</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="group__Theory__API.html#ga664e787b0eb7e5e6fdb03efeb409d38a" title="Notify theory of a new shared term.">addSharedTerm</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e) {}</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment"></span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment"> //! Assert a new fact to the decision procedure</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="comment"></span><span class="comment"> /*! Each fact that makes it into the core framework is assigned to exactly</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="comment"> one theory: the theory associated with that fact. assertFact is called to</span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="comment"> inform the theory that a new fact has been assigned to the theory.</span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="group__Theory__API.html#ga58de37714dd855f4d50de15108b8dbc7" title="Assert a new fact to the decision procedure.">assertFact</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& e) = 0;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="comment"></span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="comment"> //! Check for satisfiability in the theory</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment"></span><span class="comment"> /*! \param fullEffort when it is false, checkSat can do as much or</span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="comment"> as little work as it likes, though simple inferences and checks for</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment"> consistency should be done to increase efficiency. If fullEffort is true,</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment"> checkSat must check whether the set of facts given by assertFact together</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment"> with the arrangement of shared terms (provided by addSharedTerm) induced by</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="comment"> the global find database equivalence relation are satisfiable. If</span></div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="comment"> satisfiable, checkSat does nothing.</span></div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="comment"></span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="comment"> If satisfiability can be acheived by merging some of the shared terms, a new</span></div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="comment"> fact must be enqueued using enqueueFact (this fact need not be a literal).</span></div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="comment"> If there is no way to make things satisfiable, setInconsistent must be called.</span></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="group__Theory__API.html#gae0bb3d506dad8d69da546777cae27228" title="Check for satisfiability in the theory.">checkSat</a>(<span class="keywordtype">bool</span> fullEffort) = 0;</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="comment"></span></div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="comment"> //! Theory-specific rewrite rules. </span></div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="comment"></span><span class="comment"> /*! By default, rewrite just returns a reflexive theorem stating that the</span></div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="comment"> input expression is equivalent to itself. However, rewrite is allowed to</span></div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="comment"> return any theorem which describes how the input expression is equivalent</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="comment"> to some new expression. rewrite should be used to perform simplifications,</span></div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="comment"> normalization, and any other preprocessing on theory-specific expressions</span></div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="comment"> that needs to be done.</span></div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00159"></a><span class="lineno"><a class="code" href="group__Theory__API.html#gaa6475baeb444915fa3b2f5c58dc5148a"> 159</a></span>  <span class="keyword">virtual</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="group__Theory__API.html#gaa6475baeb444915fa3b2f5c58dc5148a" title="Theory-specific rewrite rules.">rewrite</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e) { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#af860f5d5e01423628c97c399606916ff" title="==> a == a">reflexivityRule</a>(e); }</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="comment"></span></div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="comment"> //! Theory-specific preprocessing</span></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment"></span><span class="comment"> /*! This gets called each time a new assumption or query is preprocessed.</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="comment"> By default it does nothing. */</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"><a class="code" href="group__Theory__API.html#gab66d477fcc5c27075a25dbfec4988537"> 164</a></span>  <span class="keyword">virtual</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="group__Theory__API.html#gab66d477fcc5c27075a25dbfec4988537" title="Theory-specific preprocessing.">theoryPreprocess</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e) { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#af860f5d5e01423628c97c399606916ff" title="==> a == a">reflexivityRule</a>(e); }</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="comment"></span></div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="comment"> //! Set up the term e for call-backs when e or its children change.</span></div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="comment"></span><span class="comment"> /*! setup is called once for each expression associated with the theory. It</span></div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="comment"> is typically used to setup theory-specific data for an expression and to</span></div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="comment"> add call-back information for use with update.</span></div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="comment"> \sa update</span></div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00172"></a><span class="lineno"><a class="code" href="group__Theory__API.html#ga6896845c1e25b3452238059d779fc4c8"> 172</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="group__Theory__API.html#ga6896845c1e25b3452238059d779fc4c8" title="Set up the term e for call-backs when e or its children change.">setup</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e) {}</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="comment"></span></div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="comment"> //! Notify a theory of a new equality</span></div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment"></span><span class="comment"> /*! update is a call-back used by the notify mechanism of the core theory.</span></div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment"> It works as follows. When an equation t1 = t2 makes it into the core</span></div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment"> framework, the two find equivalence classes for t1 and t2 are merged. The</span></div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment"> result is that t2 is the new equivalence class representative and t1 is no</span></div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="comment"> longer an equivalence class representative. When this happens, the notify</span></div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="comment"> list of t1 is traversed. Notify list entries consist of a theory and an</span></div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="comment"> expression d. For each entry (i,d), i->update(e, d) is called, where e is</span></div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="comment"> the theorem corresponding to the equality t1=t2.</span></div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="comment"></span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="comment"> To add the entry (i,d) to a term t1's notify list, a call must be made to</span></div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="comment"> t1.addNotify(i,d). This is typically done in setup.</span></div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment"></span></div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="comment"> \sa setup</span></div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00189"></a><span class="lineno"><a class="code" href="group__Theory__API.html#gac41af6a90290fe83b2ee6c53cbfc4a62"> 189</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="group__Theory__API.html#gac41af6a90290fe83b2ee6c53cbfc4a62" title="Notify a theory of a new equality.">update</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& e, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& d) {}</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="comment"></span></div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="comment"> //! An optional solver.</span></div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="comment"></span><span class="comment"> /*! The solve method can be used to implement a Shostak-style solver. Since</span></div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="comment"> solvers do not in general combine, the following technique is used. One</span></div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="comment"> theory is designated as the primary solver (in our case, it is the theory</span></div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="comment"> of arithmetic). For each equation that enters the core framework, the</span></div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="comment"> primary solver is called to ensure that the equation is in solved form with</span></div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment"> respect to the primary theory.</span></div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="comment"></span></div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="comment"> After the primary solver, the solver for the theory associated with the</span></div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="comment"> equation is called. This solver can do whatever it likes, as long as the</span></div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="comment"> result is still in solved form with respect to the primary solver. This is</span></div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="comment"> a slight generalization of what is described in my (Clark)'s PhD thesis.</span></div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00204"></a><span class="lineno"><a class="code" href="group__Theory__API.html#ga3908ecb66d7ba9830e7cf5d1a8ab91c3"> 204</a></span>  <span class="keyword">virtual</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="group__Theory__API.html#ga3908ecb66d7ba9830e7cf5d1a8ab91c3" title="An optional solver.">solve</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& e) { <span class="keywordflow">return</span> e; }<span class="comment"></span></div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="comment"> //! A debug check used by the primary solver</span></div>
<div class="line"><a name="l00206"></a><span class="lineno"><a class="code" href="group__Theory__API.html#gacdab59f42f5124655275d2e08e7aa0e3"> 206</a></span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="group__Theory__API.html#gacdab59f42f5124655275d2e08e7aa0e3" title="A debug check used by the primary solver.">checkAssertEqInvariant</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& e) { }</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="comment"></span></div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="comment"> /////////////////////////////////</span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="comment"></span> <span class="comment">// Extensions to original API: //</span><span class="comment"></span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment"> /////////////////////////////////</span></div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="comment"></span><span class="comment"></span></div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="comment"> //! Recursive simplification step</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="comment"></span><span class="comment"> /*!</span></div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="comment"> * INVARIANT: the result is a Theorem(e=e'), where e' is a fully</span></div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="comment"> * simplified version of e. To simplify subexpressions recursively,</span></div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="comment"> * call simplify() function.</span></div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="comment"> * This theory-specific method is called when the simplifier</span></div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="comment"> * descends top-down into the expression. Normally, every kid is</span></div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="comment"> * simplified recursively, and the results are combined into the new</span></div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="comment"> * parent with the same operator (Op). This functionality is</span></div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="comment"> * provided with the default implementation.</span></div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment"> * However, in some expressions some kids may not matter in the</span></div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment"> * result, and can be skipped. For instance, if the first kid in a</span></div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment"> * long AND simplifies to FALSE, then the entire expression</span></div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment"> * simplifies to FALSE, and the remaining kids do not need to be</span></div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment"> * simplified.</span></div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment"> * This call is a chance for a DP to provide these types of</span></div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="comment"> * optimizations during the top-down phase of simplification.</span></div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keyword">virtual</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="group__Theory__API.html#ga55b82868b8e9e60906756e797da9355a" title="Recursive simplification step.">simplifyOp</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="comment"></span></div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="comment"> //! Check that e is a valid Type expr</span></div>
<div class="line"><a name="l00236"></a><span class="lineno"><a class="code" href="group__Theory__API.html#gac22e5fff02a4681c3972e3637bd15748"> 236</a></span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="group__Theory__API.html#gac22e5fff02a4681c3972e3637bd15748" title="Check that e is a valid Type expr.">checkType</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e)</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  { <span class="keywordflow">throw</span> <a class="code" href="classCVC3_1_1Exception.html">Exception</a>(<span class="stringliteral">"Cannot construct type from expr: "</span>+e.<a class="code" href="group__ExprPkg.html#gaf3028bb1619f8cc69b66ec712e1adb54" title="Print the expression to a string.">toString</a>()); }</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="comment"></span></div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="comment"> //! Compute information related to finiteness of types</span></div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="comment"></span><span class="comment"> /*! Used by the TypeComputer defined in TheoryCore (theories should not call this</span></div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="comment"> * funtion directly -- they should use the methods in Type instead). Each theory</span></div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="comment"> * should implement this if it contains any types that could be non-infinite.</span></div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="comment"> * 1. Returns Cardinality of the type (finite, infinite, or unknown)</span></div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="comment"> * 2. If cardinality = finite and enumerate is true,</span></div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="comment"> * sets e to the nth element of the type if it can</span></div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span> <span class="comment"> * sets e to NULL if n is out of bounds or if unable to compute nth element</span></div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> <span class="comment"> * 3. If cardinality = finite and computeSize is true,</span></div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="comment"> * sets n to the size of the type if it can</span></div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="comment"> * sets n to 0 otherwise</span></div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00252"></a><span class="lineno"><a class="code" href="group__Theory__API.html#ga166b2a0c7ec3b09e079c2f84bb6087bc"> 252</a></span>  <span class="keyword">virtual</span> <a class="code" href="namespaceCVC3.html#af969e724f8b7016909f5804e8cea3e54" title="Enum for cardinality of types.">Cardinality</a> <a class="code" href="group__Theory__API.html#ga166b2a0c7ec3b09e079c2f84bb6087bc" title="Compute information related to finiteness of types.">finiteTypeInfo</a>(<a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e, <a class="code" href="classCVC3_1_1Unsigned.html">Unsigned</a>& n,</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordtype">bool</span> enumerate, <span class="keywordtype">bool</span> computeSize)</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  { <span class="keywordflow">return</span> <a class="code" href="namespaceCVC3.html#af969e724f8b7016909f5804e8cea3e54ad4a45eb68b0ebb32f0c805f6d2abf6d6">CARD_INFINITE</a>; }</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="comment"></span></div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="comment"> //! Compute and store the type of e</span></div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span> <span class="comment"></span><span class="comment"> /*!</span></div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> <span class="comment"> * \param e is the expression whose type is computed. </span></div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="comment"> * This function computes the type of the top-level operator of e,</span></div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="comment"> * and recurses into children using getType(), if necessary.</span></div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00263"></a><span class="lineno"><a class="code" href="group__Theory__API.html#gabaed6b47e6fdea3ae1e53ff75f1882db"> 263</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="group__Theory__API.html#gabaed6b47e6fdea3ae1e53ff75f1882db" title="Compute and store the type of e.">computeType</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e) {}<span class="comment"></span></div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="comment"> //! Compute the base type of the top-level operator of an arbitrary type</span></div>
<div class="line"><a name="l00265"></a><span class="lineno"><a class="code" href="group__Theory__API.html#gaa29925192ee19a6d1f0644174cfd07af"> 265</a></span> <span class="comment"></span> <span class="keyword">virtual</span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a> <a class="code" href="group__Theory__API.html#gaa29925192ee19a6d1f0644174cfd07af" title="Compute the base type of the top-level operator of an arbitrary type.">computeBaseType</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a>& tp) { <span class="keywordflow">return</span> tp; }<span class="comment"></span></div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="comment"> /*! @brief Theory specific computation of the subtyping predicate for </span></div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="comment"> * type t applied to the expression e.</span></div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="comment"> */</span> <span class="comment"></span></div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="comment"> /*! By default returns true. Each theory needs to compute subtype predicates</span></div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span> <span class="comment"> * for the types associated with it. So, for example, the theory of records</span></div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> <span class="comment"> * will take a record type [# f1: T1, f2: T2 #] and an expression e</span></div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="comment"> * and will return the subtyping predicate for e, namely:</span></div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="comment"> * computeTypePred(T1, e.f1) AND computeTypePred(T2, e.f2)</span></div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="comment"> */</span> </div>
<div class="line"><a name="l00275"></a><span class="lineno"><a class="code" href="group__Theory__API.html#ga19d53b411ccc48276f6666183b3c5887"> 275</a></span>  <span class="keyword">virtual</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> <a class="code" href="group__Theory__API.html#ga19d53b411ccc48276f6666183b3c5887" title="Theory specific computation of the subtyping predicate for type t applied to the expression e...">computeTypePred</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a>& t, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e) </div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  { <span class="keywordflow">return</span> e.<a class="code" href="group__ExprPkg.html#gab57ce3dfa78947a906241d090c7cf34d">getEM</a>()-><a class="code" href="group__EM__Priv.html#ga4471fca49c2acbb7b4cf71e72bc55d6a" title="TRUE Expr.">trueExpr</a>(); }<span class="comment"></span></div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span> <span class="comment"> //! Compute and cache the TCC of e.</span></div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="comment"></span><span class="comment"> /*! </span></div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="comment"> * \param e is an expression (term or formula). This function</span></div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="comment"> * computes the TCC of e which is true iff the expression is defined.</span></div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="comment"> * This function computes the TCC or predicate of the top-level</span></div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="comment"> * operator of e, and recurses into children using getTCC(), if</span></div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span> <span class="comment"> * necessary.</span></div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="comment"> * The default implementation is to compute TCCs recursively for all</span></div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="comment"> * children, and return their conjunction.</span></div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keyword">virtual</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> <a class="code" href="group__Theory__API.html#ga9278ad3a6eb8351865a71acd7bb7f968" title="Compute and cache the TCC of e.">computeTCC</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="comment"></span></div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="comment"> //! Theory-specific parsing implemented by the DP</span></div>
<div class="line"><a name="l00292"></a><span class="lineno"><a class="code" href="group__Theory__API.html#ga378bef078620e67fc80f36fa79320d91"> 292</a></span> <span class="comment"></span> <span class="keyword">virtual</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> <a class="code" href="group__Theory__API.html#ga378bef078620e67fc80f36fa79320d91" title="Theory-specific parsing implemented by the DP.">parseExprOp</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e) { <span class="keywordflow">return</span> e; }</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="comment"></span></div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="comment"> //! Theory-specific pretty-printing.</span></div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="comment"></span><span class="comment"> /*! By default, print the top node in AST, and resume</span></div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="comment"> pretty-printing the children. The same call e.print(os) can be</span></div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="comment"> used in DP-specific printers to use AST printing for the given</span></div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="comment"> node. In fact, it is strongly recommended to add e.print(os) as</span></div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="comment"> the default for all the cases/kinds that are not handled by the</span></div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="comment"> particular pretty-printer.</span></div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00302"></a><span class="lineno"><a class="code" href="group__Theory__API.html#ga49009744d64bbc47785f3fc5fa6884ca"> 302</a></span>  <span class="keyword">virtual</span> <a class="code" href="classCVC3_1_1ExprStream.html" title="Pretty-printing output stream for Expr. READ THE DOCS BEFORE USING!">ExprStream</a>& <a class="code" href="group__Theory__API.html#ga49009744d64bbc47785f3fc5fa6884ca" title="Theory-specific pretty-printing.">print</a>(<a class="code" href="classCVC3_1_1ExprStream.html" title="Pretty-printing output stream for Expr. READ THE DOCS BEFORE USING!">ExprStream</a>& os, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e) {</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keywordflow">return</span> e.<a class="code" href="group__ExprPkg.html#ga092308b0a88e12a5c7ff2fc0a2eca818" title="Print the top node and then recurse through the children */.">printAST</a>(os);</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  }</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="comment"></span></div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> <span class="comment"> //! Add variables from 'e' to 'v' for constructing a concrete model</span></div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span> <span class="comment"></span><span class="comment"> /*! If e is already of primitive type, do NOT add it to v. */</span></div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="group__Theory__API.html#ga37309ea20a161f2529cbb0ab79f9ed3f" title="Add variables from 'e' to 'v' for constructing a concrete model.">computeModelTerm</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e, std::vector<Expr>& v);<span class="comment"></span></div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span> <span class="comment"> //! Process disequalities from the arrangement for model generation</span></div>
<div class="line"><a name="l00310"></a><span class="lineno"><a class="code" href="group__Theory__API.html#gab23238889b7f68caa0715e6ab5d31775"> 310</a></span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="group__Theory__API.html#gab23238889b7f68caa0715e6ab5d31775" title="Process disequalities from the arrangement for model generation.">refineCounterExample</a>() {}<span class="comment"></span></div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> <span class="comment"> //! Assign concrete values to basic-type variables in v</span></div>
<div class="line"><a name="l00312"></a><span class="lineno"><a class="code" href="group__Theory__API.html#ga6a6bc2982a8c71475cd9f1b6a4aa388e"> 312</a></span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="group__Theory__API.html#ga6a6bc2982a8c71475cd9f1b6a4aa388e" title="Assign concrete values to basic-type variables in v.">computeModelBasic</a>(<span class="keyword">const</span> std::vector<Expr>& v) {}<span class="comment"></span></div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> <span class="comment"> //! Compute the value of a compound variable from the more primitive ones</span></div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span> <span class="comment"></span><span class="comment"> /*! The more primitive variables for e are already assigned concrete</span></div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> <span class="comment"> * values, and are available through getModelValue().</span></div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span> <span class="comment"> * The new value for e must be assigned using assignValue() method.</span></div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span> <span class="comment"> * \param e is the compound type expression to assign a value;</span></div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span> <span class="comment"> * \param vars are the variables actually assigned. Normally, 'e'</span></div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span> <span class="comment"> * is the only element of vars. However, e.g. in the case of</span></div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span> <span class="comment"> * uninterpreted functions, assigning 'f' means assigning all</span></div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span> <span class="comment"> * relevant applications of 'f' to constant values (f(0), f(5),</span></div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span> <span class="comment"> * etc.). Such applications might not be known before the model is</span></div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span> <span class="comment"> * constructed (they may be of the form f(x), f(y+z), etc., where</span></div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span> <span class="comment"> * x,y,z are still unassigned).</span></div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span> <span class="comment"> * Populating 'vars' is an opportunity for a DP to change the set of</span></div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span> <span class="comment"> * top-level "variables" to assign, if needed. In particular, it</span></div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span> <span class="comment"> * may drop 'e' from the model entirely, if it is already a concrete</span></div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span> <span class="comment"> * value by itself.</span></div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00334"></a><span class="lineno"><a class="code" href="group__Theory__API.html#ga4a5b9fff88df80582fc76fd3def55002"> 334</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="group__Theory__API.html#ga4a5b9fff88df80582fc76fd3def55002" title="Compute the value of a compound variable from the more primitive ones.">computeModel</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e, std::vector<Expr>& vars) {</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <a class="code" href="classCVC3_1_1Theory.html#a917b117d28514f486b296568fcd1cfd1" title="Assigns t a concrete value val. Used in model generation.">assignValue</a>(<a class="code" href="classCVC3_1_1Theory.html#ac59f888b3b3f973580e061ffd803b6bb" title="Return the theorem that e is equal to its find.">find</a>(e));</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  vars.push_back(e);</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  }</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> <span class="comment"></span></div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span> <span class="comment"> //! Receives all the type predicates for the types of the given theory</span></div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> <span class="comment"></span><span class="comment"> /*! Type predicates may be expensive to enqueue eagerly, and DPs may</span></div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span> <span class="comment"> choose to postpone them, or transform them to something more</span></div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span> <span class="comment"> efficient. By default, the asserted type predicate is</span></div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span> <span class="comment"> immediately enqueued as a new fact.</span></div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span> <span class="comment"></span></div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span> <span class="comment"> Note: Used only by bitvector theory.</span></div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span> <span class="comment"></span></div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span> <span class="comment"> \param e is the expression for which the type predicate is computed</span></div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span> <span class="comment"> \param pred is the predicate theorem P(e)</span></div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00350"></a><span class="lineno"><a class="code" href="group__Theory__API.html#ga4ce2fe1baec76fcb6120bbd86623ecd2"> 350</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="group__Theory__API.html#ga4ce2fe1baec76fcb6120bbd86623ecd2" title="Receives all the type predicates for the types of the given theory.">assertTypePred</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& pred)</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  { <a class="code" href="classCVC3_1_1Theory.html#a93856c9af82b2c25c51b3c36bafb71f4" title="Submit a derived fact to the core from a decision procedure.">enqueueFact</a>(pred); }</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span> <span class="comment"></span></div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span> <span class="comment"> //! Theory-specific rewrites for atomic formulas</span></div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> <span class="comment"></span><span class="comment"> /*! The intended use is to convert complex atomic formulas into an</span></div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span> <span class="comment"> * equivalent Boolean combination of simpler formulas. Such</span></div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span> <span class="comment"> * conversion may be harmful for algebraic rewrites, and is not</span></div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span> <span class="comment"> * always desirable to have in rewrite() method.</span></div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span> <span class="comment"> * Note: Used only by bitvector theory and rewriteLiteral in core.</span></div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span> <span class="comment"> * However, if rewrite() alone cannot solve the problem, and the SAT</span></div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="comment"> * solver needs to be envoked, these additional rewrites may ease</span></div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span> <span class="comment"> * the job for the SAT solver.</span></div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00365"></a><span class="lineno"><a class="code" href="group__Theory__API.html#gaacb9782eae3d1121c415cd4b7650025c"> 365</a></span>  <span class="keyword">virtual</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="group__Theory__API.html#gaacb9782eae3d1121c415cd4b7650025c" title="Theory-specific rewrites for atomic formulas.">rewriteAtomic</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e) { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#af860f5d5e01423628c97c399606916ff" title="==> a == a">reflexivityRule</a>(e); }</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span> <span class="comment"></span></div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> <span class="comment"> //! Notification of conflict</span></div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span> <span class="comment"></span><span class="comment"> /*!</span></div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span> <span class="comment"> * Decision procedures implement this method when they want to be</span></div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span> <span class="comment"> * notified about a conflict.</span></div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> <span class="comment"> * Note: Used only by quantifier theory</span></div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="comment"> * \param thm is the theorem of FALSE given to setInconsistent()</span></div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00376"></a><span class="lineno"><a class="code" href="group__Theory__API.html#ga30a5750a0c38416c847e411c7400214a"> 376</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="group__Theory__API.html#ga30a5750a0c38416c847e411c7400214a" title="Notification of conflict.">notifyInconsistent</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& thm) { }</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span> </div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="group__Theory__API.html#gafb1431aa8258f6663ad948ebb08e5330">registerAtom</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& thm);</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span> <span class="comment"></span></div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span> <span class="comment"> //! Theory-specific registration of atoms</span></div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span> <span class="comment"></span><span class="comment"> /*!</span></div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span> <span class="comment"> * If a theory wants to implement its own theory propagation, it</span></div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span> <span class="comment"> * should implement this method and use it to collect all atoms</span></div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span> <span class="comment"> * that the core is interested in. If the theory can deduce the atom</span></div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="comment"> * or its negation, it should do so (using enqueueFact).</span></div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00387"></a><span class="lineno"><a class="code" href="group__Theory__API.html#gaae6aca3030e9857d149b8ea26c44b535"> 387</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="group__Theory__API.html#gaae6aca3030e9857d149b8ea26c44b535" title="Theory-specific registration of atoms.">registerAtom</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e) { }</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span> </div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span> </div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span> <span class="preprocessor">#ifdef _CVC3_DEBUG_MODE</span></div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span> <span class="preprocessor"></span><span class="comment"> //! Theory-specific debug function</span></div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> debug(<span class="keywordtype">int</span> i) { }<span class="comment"></span></div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span> <span class="comment"> //! help function, as debug(int i). yeting</span></div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">int</span> help(<span class="keywordtype">int</span> i) { <span class="keywordflow">return</span> 9999 ;} ;</div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> <span class="preprocessor"></span><span class="comment"></span></div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span> <span class="comment"> /*@}*/</span> <span class="comment">// End of Theory_API group</span></div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span> </div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="comment">/***************************************************************************/</span><span class="comment"></span></div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span> <span class="comment"> /*!</span></div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span> <span class="comment"> *\name Core Framework Functionality</span></div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span> <span class="comment"> * These methods provide convenient access to core functionality for the</span></div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span> <span class="comment"> * benefit of decision procedures.</span></div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span> <span class="comment"> *@{</span></div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="comment">/***************************************************************************/</span></div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span> <span class="comment"></span></div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span> <span class="comment"> //! Check if the current context is inconsistent</span></div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theory.html#ab85541a91803599b7495f709c72c28c5" title="Check if the current context is inconsistent.">inconsistent</a>();<span class="comment"></span></div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span> <span class="comment"> //! Make the context inconsistent; The formula proved by e must FALSE.</span></div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#a89f8e1e02e22ef524c286ce8b87bdea4" title="Make the context inconsistent; The formula proved by e must FALSE.">setInconsistent</a>(<span class="keyword">const</span> Theorem& e);</div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span> <span class="comment"></span></div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span> <span class="comment"> //! Mark the current decision branch as possibly incomplete</span></div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span> <span class="comment"></span><span class="comment"> /*!</span></div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span> <span class="comment"> * This should be set when a decision procedure uses an incomplete</span></div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span> <span class="comment"> * algorithm, and cannot guarantee satisfiability after the final</span></div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span> <span class="comment"> * checkSat() call with full effort. An example would be</span></div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span> <span class="comment"> * instantiation of universal quantifiers.</span></div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span> <span class="comment"> * A decision procedure can provide a reason for incompleteness,</span></div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span> <span class="comment"> * which will be reported back to the user.</span></div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#a08cc815e21d2972f54f8c1e70ce8ab51" title="Mark the current decision branch as possibly incomplete.">setIncomplete</a>(<span class="keyword">const</span> std::string& reason);</div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span> <span class="comment"></span></div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span> <span class="comment"> //! Simplify a term e and return a Theorem(e==e')</span></div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span> <span class="comment"></span><span class="comment"> /*! \sa simplifyExpr() */</span></div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="keyword">virtual</span> Theorem <a class="code" href="classCVC3_1_1Theory.html#a52158688456f8605b064fbbf7a46039c" title="Simplify a term e and return a Theorem(e==e')">simplify</a>(<span class="keyword">const</span> Expr& e);<span class="comment"></span></div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span> <span class="comment"> //! Simplify a term e w.r.t. the current context</span></div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span> <span class="comment"></span><span class="comment"> /*! \sa simplify */</span></div>
<div class="line"><a name="l00430"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a9d441225b287419426c80a0374d6c6cb"> 430</a></span>  <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> <a class="code" href="classCVC3_1_1Theory.html#a9d441225b287419426c80a0374d6c6cb" title="Simplify a term e w.r.t. the current context.">simplifyExpr</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e)</div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#a52158688456f8605b064fbbf7a46039c" title="Simplify a term e and return a Theorem(e==e')">simplify</a>(e).<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>(); }</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span> <span class="comment"></span></div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span> <span class="comment"> //! Submit a derived fact to the core from a decision procedure</span></div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span> <span class="comment"></span><span class="comment"> /*! \param e is the Theorem for the new fact </span></div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#a93856c9af82b2c25c51b3c36bafb71f4" title="Submit a derived fact to the core from a decision procedure.">enqueueFact</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& e);</div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#af833743a1332ba2b84bdc4118a05300f" title="Check if the current context is inconsistent.">enqueueSE</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& e);</div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span> <span class="comment"></span></div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span> <span class="comment"> //! Handle new equalities (usually asserted through addFact)</span></div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span> <span class="comment"></span><span class="comment"> /*!</span></div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span> <span class="comment"> * INVARIANT: the Theorem 'e' is an equality e1==e2, where e2 is</span></div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span> <span class="comment"> * i-leaf simplified in the current context, or a conjunction of</span></div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span> <span class="comment"> * such equalities.</span></div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#a135cfab97004ee025a7840d72b6c4e1d" title="Handle new equalities (usually asserted through addFact)">assertEqualities</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& e);</div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span> <span class="comment"></span></div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span> <span class="comment"> //! Parse the generic expression.</span></div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span> <span class="comment"></span><span class="comment"> /*! This method should be used in parseExprOp() for recursive calls</span></div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span> <span class="comment"> * to subexpressions, and is the method called by the command</span></div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span> <span class="comment"> * processor.</span></div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <span class="keyword">virtual</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> <a class="code" href="classCVC3_1_1Theory.html#abd5a64ee867dda0c216a04e9fc7fbd6c" title="Parse the generic expression.">parseExpr</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);</div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span> <span class="comment"></span></div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span> <span class="comment"> //! Assigns t a concrete value val. Used in model generation.</span></div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#a917b117d28514f486b296568fcd1cfd1" title="Assigns t a concrete value val. Used in model generation.">assignValue</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& t, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& val);<span class="comment"></span></div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span> <span class="comment"> //! Record a derived assignment to a variable (LHS).</span></div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span> <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#a917b117d28514f486b296568fcd1cfd1" title="Assigns t a concrete value val. Used in model generation.">assignValue</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& thm);</div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span> <span class="comment"></span></div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span> <span class="comment"> /*@}*/</span> <span class="comment">// End of Core Framework Functionality</span></div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span> </div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  <span class="comment">/***************************************************************************/</span><span class="comment"></span></div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span> <span class="comment"> /*!</span></div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span> <span class="comment"> *\name Theory Helper Methods</span></div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span> <span class="comment"> * These methods provide basic functionality needed by all theories.</span></div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span> <span class="comment"> *@{</span></div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="comment">/***************************************************************************/</span></div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span> <span class="comment"></span></div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span> <span class="comment"> //! Register new kinds with the given theory</span></div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#a41499be2b31d82e7bec5efc880126510" title="Register new kinds with the given theory.">registerKinds</a>(<a class="code" href="classCVC3_1_1Theory.html" title="Base class for theories.">Theory</a>* theory, std::vector<int>& kinds);<span class="comment"></span></div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span> <span class="comment"> //! Unregister kinds for a theory</span></div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#aafdee81857fde584632759c78ed821f5" title="Unregister kinds for a theory.">unregisterKinds</a>(<a class="code" href="classCVC3_1_1Theory.html" title="Base class for theories.">Theory</a>* theory, std::vector<int>& kinds);<span class="comment"></span></div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span> <span class="comment"> //! Register a new theory</span></div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#a97a6f8e09f71513da969fa7847346c6f" title="Register a new theory.">registerTheory</a>(<a class="code" href="classCVC3_1_1Theory.html" title="Base class for theories.">Theory</a>* theory, std::vector<int>& kinds,</div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keywordtype">bool</span> hasSolver=<span class="keyword">false</span>);<span class="comment"></span></div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span> <span class="comment"> //! Unregister a theory</span></div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#a6bdcdfdf6d658b1b1b7c548ea4782e6e" title="Unregister a theory.">unregisterTheory</a>(<a class="code" href="classCVC3_1_1Theory.html" title="Base class for theories.">Theory</a>* theory, std::vector<int>& kinds,</div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  <span class="keywordtype">bool</span> hasSolver);</div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span> <span class="comment"></span></div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span> <span class="comment"> //! Return the number of registered theories</span></div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span> <span class="comment"></span> <span class="keywordtype">int</span> <a class="code" href="classCVC3_1_1Theory.html#ab7c83d1e21c1553ff229447fe6d51530" title="Return the number of registered theories.">getNumTheories</a>();</div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span> <span class="comment"></span></div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span> <span class="comment"> //! Test whether a kind maps to any theory</span></div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span> <span class="comment"></span> <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theory.html#a8dc9b3350f948ce5b6112a4812819696" title="Test whether a kind maps to any theory.">hasTheory</a>(<span class="keywordtype">int</span> kind);<span class="comment"></span></div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span> <span class="comment"> //! Return the theory associated with a kind</span></div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theory.html" title="Base class for theories.">Theory</a>* <a class="code" href="classCVC3_1_1Theory.html#a01fa8047ed1f649dc98831cb536187e4" title="Return the theory associated with a kind.">theoryOf</a>(<span class="keywordtype">int</span> kind);<span class="comment"></span></div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span> <span class="comment"> //! Return the theory associated with a type</span></div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theory.html" title="Base class for theories.">Theory</a>* <a class="code" href="classCVC3_1_1Theory.html#a01fa8047ed1f649dc98831cb536187e4" title="Return the theory associated with a kind.">theoryOf</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a>& e);<span class="comment"></span></div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span> <span class="comment"> //! Return the theory associated with an Expr</span></div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theory.html" title="Base class for theories.">Theory</a>* <a class="code" href="classCVC3_1_1Theory.html#a01fa8047ed1f649dc98831cb536187e4" title="Return the theory associated with a kind.">theoryOf</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);</div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span> <span class="comment"></span></div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span> <span class="comment"> //! Return the theorem that e is equal to its find</span></div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#ac59f888b3b3f973580e061ffd803b6bb" title="Return the theorem that e is equal to its find.">find</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);<span class="comment"></span></div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span> <span class="comment"> //! Return the find as a reference: expr must have a find</span></div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span> <span class="comment"></span> <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& <a class="code" href="classCVC3_1_1Theory.html#a89a91d7480d5783fb0c0f67f2fdb7873" title="Return the find as a reference: expr must have a find.">findRef</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);</div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span> <span class="comment"></span></div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span> <span class="comment"> //! Return find-reduced version of e</span></div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#ab46ce7e7b6c9425a42df38ccf56642b6" title="Return find-reduced version of e.">findReduce</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);<span class="comment"></span></div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span> <span class="comment"> //! Return true iff e is find-reduced</span></div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span> <span class="comment"></span> <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theory.html#ad0f5335bae1a358802ec5b958e77934e" title="Return true iff e is find-reduced.">findReduced</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);<span class="comment"></span></div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span> <span class="comment"> //! Return the find of e, or e if it has no find</span></div>
<div class="line"><a name="l00503"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a08412b310cb743536f7edd9fccd60e46"> 503</a></span> <span class="comment"></span> <span class="keyword">inline</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> <a class="code" href="classCVC3_1_1Theory.html#a08412b310cb743536f7edd9fccd60e46" title="Return the find of e, or e if it has no find.">findExpr</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e)</div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  { <span class="keywordflow">return</span> e.<a class="code" href="group__ExprPkg.html#ga4dc94c33ae308ff8d9d004f49df8f42b">hasFind</a>() ? <a class="code" href="classCVC3_1_1Theory.html#ac59f888b3b3f973580e061ffd803b6bb" title="Return the theorem that e is equal to its find.">find</a>(e).<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>() : e; }</div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span> <span class="comment"></span></div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span> <span class="comment"> //! Compute the TCC of e, or the subtyping predicate, if e is a type</span></div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> <a class="code" href="classCVC3_1_1Theory.html#af38bdeb162a9ab9bd81ce40f598f608f" title="Compute the TCC of e, or the subtyping predicate, if e is a type.">getTCC</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);<span class="comment"></span></div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span> <span class="comment"> //! Compute (or look up in cache) the base type of e and return the result</span></div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a> <a class="code" href="classCVC3_1_1Theory.html#aa408fe61c3d28f4333b78a3027606bb8" title="Compute (or look up in cache) the base type of e and return the result.">getBaseType</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);<span class="comment"></span></div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span> <span class="comment"> //! Compute the base type from an arbitrary type</span></div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a> <a class="code" href="classCVC3_1_1Theory.html#aa408fe61c3d28f4333b78a3027606bb8" title="Compute (or look up in cache) the base type of e and return the result.">getBaseType</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a>& tp);<span class="comment"></span></div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span> <span class="comment"> //! Calls the correct theory to compute a type predicate</span></div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> <a class="code" href="classCVC3_1_1Theory.html#a39539e895f8aade88ae5bc05bbcc9302" title="Calls the correct theory to compute a type predicate.">getTypePred</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a>& t, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);</div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span> <span class="comment"></span></div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span> <span class="comment"> //! Update the children of the term e</span></div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span> <span class="comment"></span><span class="comment"> /*! When a decision procedure receives a call to update() because a</span></div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span> <span class="comment"> child of a term 'e' has changed, this method can be called to</span></div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span> <span class="comment"> compute the new value of 'e'.</span></div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span> <span class="comment"> \sa update</span></div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#ad6cb45844df7f1b08a53e41e40a362e3" title="Update the children of the term e.">updateHelper</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);<span class="comment"></span></div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span> <span class="comment"> //! Setup a term for congruence closure (must have sig and rep attributes)</span></div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#a29cc343040a52a299a4f20123edf4c75" title="Setup a term for congruence closure (must have sig and rep attributes)">setupCC</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);<span class="comment"></span></div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span> <span class="comment"> //! Update a term w.r.t. congruence closure (must be setup with setupCC())</span></div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#a0b9e5a75b0e23a334563392f075df9e2" title="Update a term w.r.t. congruence closure (must be setup with setupCC())">updateCC</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& e, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& d);<span class="comment"></span></div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span> <span class="comment"> //! Rewrite a term w.r.t. congruence closure (must be setup with setupCC())</span></div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#a2d91d71489b0c0a9822cef765326bc89" title="Rewrite a term w.r.t. congruence closure (must be setup with setupCC())">rewriteCC</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);</div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span> <span class="comment"></span></div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span> <span class="comment"> /*! @brief Calls the correct theory to get all of the terms that</span></div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span> <span class="comment"> need to be assigned values in the concrete model */</span></div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#ad8b27aeea37d99def7a3c0348ded3e66" title="Calls the correct theory to get all of the terms that need to be assigned values in the concrete mode...">getModelTerm</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e, std::vector<Expr>& v);<span class="comment"></span></div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span> <span class="comment"> //! Fetch the concrete assignment to the variable during model generation</span></div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#a4867f332c809f6efe8f01ffa45c32db3" title="Fetch the concrete assignment to the variable during model generation.">getModelValue</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);</div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span> <span class="comment"></span></div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span> <span class="comment"> //! Suggest a splitter to the SearchEngine</span></div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#a605e960d2442b587046c562723b7f03a" title="Suggest a splitter to the SearchEngine.">addSplitter</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e, <span class="keywordtype">int</span> priority = 0);</div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span> <span class="comment"></span></div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span> <span class="comment"> //! Add a global lemma</span></div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#a688cd0c0b669ab9719f8a99cb207ad2c" title="Add a global lemma.">addGlobalLemma</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& thm, <span class="keywordtype">int</span> priority = 0);</div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span> <span class="comment"></span></div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span> <span class="comment"> /*@}*/</span> <span class="comment">// End of Theory Helper Methods</span></div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span> </div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  <span class="comment">/***************************************************************************/</span><span class="comment"></span></div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span> <span class="comment"> /*!</span></div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span> <span class="comment"> *\name Core Testers</span></div>
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span> <span class="comment"> *@{</span></div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  <span class="comment">/***************************************************************************/</span></div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span> <span class="comment"></span></div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span> <span class="comment"> //! Test if e is an i-leaf term for the current theory</span></div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span> <span class="comment"></span><span class="comment"> /*! A term 'e' is an i-leaf for a theory 'i', if it is a variable,</span></div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span> <span class="comment"> or 'e' belongs to a different theory. This definition makes sense</span></div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span> <span class="comment"> for a larger term which by itself belongs to the current theory</span></div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span> <span class="comment"> 'i', but (some of) its children are variables or belong to</span></div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span> <span class="comment"> different theories. */</span></div>
<div class="line"><a name="l00556"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a8d466120560b7b91dc279e657fe3c433"> 556</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theory.html#a8d466120560b7b91dc279e657fe3c433" title="Test if e is an i-leaf term for the current theory.">isLeaf</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e) { <span class="keywordflow">return</span> e.<a class="code" href="group__ExprPkg.html#ga55b6a203b4375e64598306596851d9ae">isVar</a>() || <a class="code" href="classCVC3_1_1Theory.html#a01fa8047ed1f649dc98831cb536187e4" title="Return the theory associated with a kind.">theoryOf</a>(e) != <span class="keyword">this</span>; }</div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span> <span class="comment"></span></div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span> <span class="comment"> //! Test if e1 is an i-leaf in e2</span></div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span> <span class="comment"></span><span class="comment"> /*! \sa isLeaf */</span></div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theory.html#aa0ef53bc2009d92763e0916c38aaf692" title="Test if e1 is an i-leaf in e2.">isLeafIn</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e1, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e2);</div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span> <span class="comment"></span></div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span> <span class="comment"> //! Test if all i-leaves of e are simplified</span></div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span> <span class="comment"></span><span class="comment"> /*! \sa isLeaf */</span></div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theory.html#a8dd39cad11cf866afc6282475cfc81b7" title="Test if all i-leaves of e are simplified.">leavesAreSimp</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);</div>
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span> <span class="comment"></span></div>
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span> <span class="comment"> /*@}*/</span> <span class="comment">// End of Core Testers</span></div>
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span> </div>
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="comment">/***************************************************************************/</span><span class="comment"></span></div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span> <span class="comment"> /*!</span></div>
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span> <span class="comment"> *\name Common Type and Expr Methods</span></div>
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span> <span class="comment"> *@{</span></div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  <span class="comment">/***************************************************************************/</span></div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span> <span class="comment"></span></div>
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span> <span class="comment"> //! Return BOOLEAN type</span></div>
<div class="line"><a name="l00576"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a705d998884ec8a53c22220373472d868"> 576</a></span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a> <a class="code" href="classCVC3_1_1Theory.html#a705d998884ec8a53c22220373472d868" title="Return BOOLEAN type.">boolType</a>() { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Type.html#a20b55d497b79ffc60b68ffe512dc2b56">Type::typeBool</a>(<a class="code" href="classCVC3_1_1Theory.html#ad756f41e88f25eec335c9c1c004ae61f">d_em</a>); }</div>
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span> <span class="comment"></span></div>
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span> <span class="comment"> //! Return FALSE Expr</span></div>
<div class="line"><a name="l00579"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a0bbf7c5b6079fc99a0f759e5809fe6f5"> 579</a></span> <span class="comment"></span> <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& <a class="code" href="classCVC3_1_1Theory.html#a0bbf7c5b6079fc99a0f759e5809fe6f5" title="Return FALSE Expr.">falseExpr</a>() { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#ad756f41e88f25eec335c9c1c004ae61f">d_em</a>-><a class="code" href="group__EM__Priv.html#gaae9db4c93c67cbf8bbf5d1e60e94f1ae" title="FALSE Expr.">falseExpr</a>(); }</div>
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span> <span class="comment"></span></div>
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span> <span class="comment"> //! Return TRUE Expr</span></div>
<div class="line"><a name="l00582"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#ab8835beee96db67f3c26a604d96f2fe8"> 582</a></span> <span class="comment"></span> <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& <a class="code" href="classCVC3_1_1Theory.html#ab8835beee96db67f3c26a604d96f2fe8" title="Return TRUE Expr.">trueExpr</a>() { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#ad756f41e88f25eec335c9c1c004ae61f">d_em</a>-><a class="code" href="group__EM__Priv.html#ga4471fca49c2acbb7b4cf71e72bc55d6a" title="TRUE Expr.">trueExpr</a>(); }</div>
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span> <span class="comment"></span></div>
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span> <span class="comment"> //! Create a new variable given its name and type</span></div>
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span> <span class="comment"></span><span class="comment"> /*! Add the variable to the database for resolving IDs in parseExpr</span></div>
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> <a class="code" href="classCVC3_1_1Theory.html#a4f82b4903d68da2bd83afb104c2c62cc" title="Create a new variable given its name and type.">newVar</a>(<span class="keyword">const</span> std::string& name, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a>& type);<span class="comment"></span></div>
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span> <span class="comment"> //! Create a new named expression given its name, type, and definition</span></div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span> <span class="comment"></span><span class="comment"> /*! Add the definition to the database for resolving IDs in parseExpr</span></div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> <a class="code" href="classCVC3_1_1Theory.html#a4f82b4903d68da2bd83afb104c2c62cc" title="Create a new variable given its name and type.">newVar</a>(<span class="keyword">const</span> std::string& name, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a>& type, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& def);</div>
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span> <span class="comment"></span></div>
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span> <span class="comment"> //! Create a new uninterpreted function</span></div>
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span> <span class="comment"></span><span class="comment"> /*! Add the definition to the database for resolving IDs in parseExpr</span></div>
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <a class="code" href="classCVC3_1_1Op.html">Op</a> <a class="code" href="classCVC3_1_1Theory.html#a97642364c244b753d33b551fc8c3bb9a" title="Create a new uninterpreted function.">newFunction</a>(<span class="keyword">const</span> std::string& name, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a>& type,</div>
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <span class="keywordtype">bool</span> computeTransClosure);</div>
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span> <span class="comment"></span></div>
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span> <span class="comment"> //! Look up a function by name.</span></div>
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span> <span class="comment"></span><span class="comment"> /*! Returns the function and sets type to the type of the function if it</span></div>
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span> <span class="comment"> * exists. If not, returns a NULL Op object.</span></div>
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  <a class="code" href="classCVC3_1_1Op.html">Op</a> <a class="code" href="classCVC3_1_1Theory.html#a61a4a3159152e1ff93dea55a33441557" title="Look up a function by name.">lookupFunction</a>(<span class="keyword">const</span> std::string& name, <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a>* type);</div>
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span> <span class="comment"></span></div>
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span> <span class="comment"> //! Create a new defined function</span></div>
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span> <span class="comment"></span><span class="comment"> /*! Add the definition to the database for resolving IDs in parseExpr</span></div>
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  <a class="code" href="classCVC3_1_1Op.html">Op</a> <a class="code" href="classCVC3_1_1Theory.html#a97642364c244b753d33b551fc8c3bb9a" title="Create a new uninterpreted function.">newFunction</a>(<span class="keyword">const</span> std::string& name, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a>& type, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& def);</div>
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span> <span class="comment"></span></div>
<div class="line"><a name="l00610"></a><span class="lineno"> 610</span> <span class="comment"> //! Create and add a new bound variable to the stack, for parseExprOp().</span></div>
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span> <span class="comment"></span><span class="comment"> /*!</span></div>
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span> <span class="comment"> * The stack is popped automatically upon return from the</span></div>
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span> <span class="comment"> * parseExprOp() which used this method.</span></div>
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span> <span class="comment"> * Bound variable names may repeat, in which case the latest</span></div>
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span> <span class="comment"> * declaration takes precedence.</span></div>
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> <a class="code" href="classCVC3_1_1Theory.html#a13ba9024a22362cc96760519a84f2316" title="Create and add a new bound variable to the stack, for parseExprOp().">addBoundVar</a>(<span class="keyword">const</span> std::string& name, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a>& type);<span class="comment"></span></div>
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span> <span class="comment"> //! Create and add a new bound named def to the stack, for parseExprOp().</span></div>
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span> <span class="comment"></span><span class="comment"> /*!</span></div>
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span> <span class="comment"> * The stack is popped automatically upon return from the</span></div>
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span> <span class="comment"> * parseExprOp() which used this method.</span></div>
<div class="line"><a name="l00623"></a><span class="lineno"> 623</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00624"></a><span class="lineno"> 624</span> <span class="comment"> * Bound variable names may repeat, in which case the latest</span></div>
<div class="line"><a name="l00625"></a><span class="lineno"> 625</span> <span class="comment"> * declaration takes precedence.</span></div>
<div class="line"><a name="l00626"></a><span class="lineno"> 626</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00627"></a><span class="lineno"> 627</span> <span class="comment"> * The type may be Null, but 'def' must always be a valid Expr</span></div>
<div class="line"><a name="l00628"></a><span class="lineno"> 628</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> <a class="code" href="classCVC3_1_1Theory.html#a13ba9024a22362cc96760519a84f2316" title="Create and add a new bound variable to the stack, for parseExprOp().">addBoundVar</a>(<span class="keyword">const</span> std::string& name, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a>& type, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& def);</div>
<div class="line"><a name="l00630"></a><span class="lineno"> 630</span> <span class="comment"></span></div>
<div class="line"><a name="l00631"></a><span class="lineno"> 631</span> <span class="comment"> /*! @brief Lookup variable and return it and its type. Return NULL Expr if</span></div>
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span> <span class="comment"> it doesn't exist yet. */</span></div>
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> <a class="code" href="classCVC3_1_1Theory.html#a4b58aeebc3a62e41f0ce71ba01fa3961" title="Lookup variable and return it and its type. Return NULL Expr if it doesn't exist yet.">lookupVar</a>(<span class="keyword">const</span> std::string& name, <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a>* type);</div>
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span> <span class="comment"></span></div>
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span> <span class="comment"> //! Create a new uninterpreted type with the given name</span></div>
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span> <span class="comment"></span><span class="comment"> /*! Add the name to the global variable database d_globals</span></div>
<div class="line"><a name="l00637"></a><span class="lineno"> 637</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a> <a class="code" href="classCVC3_1_1Theory.html#aadde006d0dea508fec039b8092b14ed6" title="Create a new uninterpreted type with the given name.">newTypeExpr</a>(<span class="keyword">const</span> std::string& name);<span class="comment"></span></div>
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span> <span class="comment"> //! Lookup type by name. Return Null if no such type exists.</span></div>
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a> <a class="code" href="classCVC3_1_1Theory.html#a4e57c5fb189f51c6e5abeeb0bcb1baef" title="Lookup type by name. Return Null if no such type exists.">lookupTypeExpr</a>(<span class="keyword">const</span> std::string& name);<span class="comment"></span></div>
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span> <span class="comment"> //! Create a new type abbreviation with the given name </span></div>
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a> <a class="code" href="classCVC3_1_1Theory.html#aadde006d0dea508fec039b8092b14ed6" title="Create a new uninterpreted type with the given name.">newTypeExpr</a>(<span class="keyword">const</span> std::string& name, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a>& def);</div>
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span> <span class="comment"></span></div>
<div class="line"><a name="l00644"></a><span class="lineno"> 644</span> <span class="comment"> //! Create a new subtype expression</span></div>
<div class="line"><a name="l00645"></a><span class="lineno"> 645</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Type.html" title="MS C++ specific settings.">Type</a> <a class="code" href="classCVC3_1_1Theory.html#af85a563480c411b1e8eb280de9f39bb2" title="Create a new subtype expression.">newSubtypeExpr</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& pred, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& witness);</div>
<div class="line"><a name="l00646"></a><span class="lineno"> 646</span> <span class="comment"></span></div>
<div class="line"><a name="l00647"></a><span class="lineno"> 647</span> <span class="comment"> //! Resolve an identifier, for use in parseExprOp()</span></div>
<div class="line"><a name="l00648"></a><span class="lineno"> 648</span> <span class="comment"></span><span class="comment"> /*!</span></div>
<div class="line"><a name="l00649"></a><span class="lineno"> 649</span> <span class="comment"> * First, search the bound variable stack, and if the name is not</span></div>
<div class="line"><a name="l00650"></a><span class="lineno"> 650</span> <span class="comment"> * found, search the global constant and type declarations. </span></div>
<div class="line"><a name="l00651"></a><span class="lineno"> 651</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00652"></a><span class="lineno"> 652</span> <span class="comment"> * \return an expression to use in place of the identifier, or Null</span></div>
<div class="line"><a name="l00653"></a><span class="lineno"> 653</span> <span class="comment"> * if cannot resolve the name.</span></div>
<div class="line"><a name="l00654"></a><span class="lineno"> 654</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> <a class="code" href="classCVC3_1_1Theory.html#a07b326cd94b2bb8bafa39faf07caaec5" title="Resolve an identifier, for use in parseExprOp()">resolveID</a>(<span class="keyword">const</span> std::string& name);</div>
<div class="line"><a name="l00656"></a><span class="lineno"> 656</span> <span class="comment"></span></div>
<div class="line"><a name="l00657"></a><span class="lineno"> 657</span> <span class="comment"> //! Install name as a new identifier associated with Expr e</span></div>
<div class="line"><a name="l00658"></a><span class="lineno"> 658</span> <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theory.html#a6b1c155465b0c24885213e7442dd0882" title="Install name as a new identifier associated with Expr e.">installID</a>(<span class="keyword">const</span> std::string& name, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);</div>
<div class="line"><a name="l00659"></a><span class="lineno"> 659</span> </div>
<div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#a090c2b079f3b90b4f5da3d8606b14d16" title="Return BOOLEAN type.">typePred</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);</div>
<div class="line"><a name="l00661"></a><span class="lineno"> 661</span> <span class="comment"></span></div>
<div class="line"><a name="l00662"></a><span class="lineno"> 662</span> <span class="comment"> /*@}*/</span> <span class="comment">// End of Common Type and Expr Methods</span></div>
<div class="line"><a name="l00663"></a><span class="lineno"> 663</span> </div>
<div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  <span class="comment">/***************************************************************************/</span><span class="comment"></span></div>
<div class="line"><a name="l00665"></a><span class="lineno"> 665</span> <span class="comment"> /*!</span></div>
<div class="line"><a name="l00666"></a><span class="lineno"> 666</span> <span class="comment"> *\name Commonly Used Proof Rules</span></div>
<div class="line"><a name="l00667"></a><span class="lineno"> 667</span> <span class="comment"> *\anchor theory_api_core_proof_rules</span></div>
<div class="line"><a name="l00668"></a><span class="lineno"> 668</span> <span class="comment"> *@{</span></div>
<div class="line"><a name="l00669"></a><span class="lineno"> 669</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  <span class="comment">/***************************************************************************/</span></div>
<div class="line"><a name="l00671"></a><span class="lineno"> 671</span> <span class="comment"></span></div>
<div class="line"><a name="l00672"></a><span class="lineno"> 672</span> <span class="comment"> //! ==> a == a</span></div>
<div class="line"><a name="l00673"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#af860f5d5e01423628c97c399606916ff"> 673</a></span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#af860f5d5e01423628c97c399606916ff" title="==> a == a">reflexivityRule</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& a)</div>
<div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#a59d055f2cf01f484ce36d56ddb82c8f8" title="Commonly used proof rules.">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a61c1fe56b4ed9744006883a7784ddb71">reflexivityRule</a>(a); }</div>
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span> <span class="comment"></span></div>
<div class="line"><a name="l00676"></a><span class="lineno"> 676</span> <span class="comment"> //! a1 == a2 ==> a2 == a1</span></div>
<div class="line"><a name="l00677"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a7440711981ac1bba2bed7476c0fa4e0b"> 677</a></span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#a7440711981ac1bba2bed7476c0fa4e0b" title="a1 == a2 ==> a2 == a1">symmetryRule</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& a1_eq_a2)</div>
<div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#a59d055f2cf01f484ce36d56ddb82c8f8" title="Commonly used proof rules.">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a0a87e88508f49b73037e0024afa841bf" title=" (same for IFF)">symmetryRule</a>(a1_eq_a2); }</div>
<div class="line"><a name="l00679"></a><span class="lineno"> 679</span> <span class="comment"></span></div>
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span> <span class="comment"> //! (a1 == a2) & (a2 == a3) ==> (a1 == a3)</span></div>
<div class="line"><a name="l00681"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a76f6507116e36f46dab074781fb9bf2d"> 681</a></span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#a76f6507116e36f46dab074781fb9bf2d" title="(a1 == a2) & (a2 == a3) ==> (a1 == a3)">transitivityRule</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& a1_eq_a2,</div>
<div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& a2_eq_a3)</div>
<div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#a59d055f2cf01f484ce36d56ddb82c8f8" title="Commonly used proof rules.">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(a1_eq_a2, a2_eq_a3); }</div>
<div class="line"><a name="l00684"></a><span class="lineno"> 684</span> <span class="comment"></span></div>
<div class="line"><a name="l00685"></a><span class="lineno"> 685</span> <span class="comment"> //! (c_1 == d_1) & ... & (c_n == d_n) ==> op(c_1,...,c_n) == op(d_1,...,d_n)</span></div>
<div class="line"><a name="l00686"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a92e2da5223d7fb620cce85b2813e047f"> 686</a></span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#a92e2da5223d7fb620cce85b2813e047f" title="(c_1 == d_1) & ... & (c_n == d_n) ==> op(c_1,...,c_n) == op(d_1,...,d_n)">substitutivityRule</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Op.html">Op</a>& op,</div>
<div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  <span class="keyword">const</span> std::vector<Theorem>& thms)</div>
<div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#a59d055f2cf01f484ce36d56ddb82c8f8" title="Commonly used proof rules.">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a776c827bb6e3b889234429c49ae9ad6f" title="Optimized case for expr with one child.">substitutivityRule</a>(op, thms); }</div>
<div class="line"><a name="l00689"></a><span class="lineno"> 689</span> <span class="comment"></span></div>
<div class="line"><a name="l00690"></a><span class="lineno"> 690</span> <span class="comment"> //! Special case for unary operators</span></div>
<div class="line"><a name="l00691"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a83a1a0b30a27f887cef4c394544b30b0"> 691</a></span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#a92e2da5223d7fb620cce85b2813e047f" title="(c_1 == d_1) & ... & (c_n == d_n) ==> op(c_1,...,c_n) == op(d_1,...,d_n)">substitutivityRule</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e,</div>
<div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t)</div>
<div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#a59d055f2cf01f484ce36d56ddb82c8f8" title="Commonly used proof rules.">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a776c827bb6e3b889234429c49ae9ad6f" title="Optimized case for expr with one child.">substitutivityRule</a>(e, t); }</div>
<div class="line"><a name="l00694"></a><span class="lineno"> 694</span> <span class="comment"></span></div>
<div class="line"><a name="l00695"></a><span class="lineno"> 695</span> <span class="comment"> //! Special case for binary operators</span></div>
<div class="line"><a name="l00696"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#abddfe81d6d08a46f1d1b3aa80ac565d5"> 696</a></span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#a92e2da5223d7fb620cce85b2813e047f" title="(c_1 == d_1) & ... & (c_n == d_n) ==> op(c_1,...,c_n) == op(d_1,...,d_n)">substitutivityRule</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e,</div>
<div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t1,</div>
<div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t2)</div>
<div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#a59d055f2cf01f484ce36d56ddb82c8f8" title="Commonly used proof rules.">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a776c827bb6e3b889234429c49ae9ad6f" title="Optimized case for expr with one child.">substitutivityRule</a>(e, t1, t2); }</div>
<div class="line"><a name="l00700"></a><span class="lineno"> 700</span> <span class="comment"></span></div>
<div class="line"><a name="l00701"></a><span class="lineno"> 701</span> <span class="comment"> //! Optimized: only positions which changed are included</span></div>
<div class="line"><a name="l00702"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a8ab61a1574ac8c29db7ddb5b0d45235b"> 702</a></span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#a92e2da5223d7fb620cce85b2813e047f" title="(c_1 == d_1) & ... & (c_n == d_n) ==> op(c_1,...,c_n) == op(d_1,...,d_n)">substitutivityRule</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e,</div>
<div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  <span class="keyword">const</span> std::vector<unsigned>& changed,</div>
<div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  <span class="keyword">const</span> std::vector<Theorem>& thms)</div>
<div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#a59d055f2cf01f484ce36d56ddb82c8f8" title="Commonly used proof rules.">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a776c827bb6e3b889234429c49ae9ad6f" title="Optimized case for expr with one child.">substitutivityRule</a>(e, changed, thms); }</div>
<div class="line"><a name="l00706"></a><span class="lineno"> 706</span> <span class="comment"></span></div>
<div class="line"><a name="l00707"></a><span class="lineno"> 707</span> <span class="comment"> //! Optimized: only a single position changed</span></div>
<div class="line"><a name="l00708"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#a56f710c79a9b3464189e8bb4d9d8a8c2"> 708</a></span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#a92e2da5223d7fb620cce85b2813e047f" title="(c_1 == d_1) & ... & (c_n == d_n) ==> op(c_1,...,c_n) == op(d_1,...,d_n)">substitutivityRule</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e,</div>
<div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  <span class="keywordtype">int</span> changed,</div>
<div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& thm)</div>
<div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  { <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#a59d055f2cf01f484ce36d56ddb82c8f8" title="Commonly used proof rules.">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a776c827bb6e3b889234429c49ae9ad6f" title="Optimized case for expr with one child.">substitutivityRule</a>(e, changed, thm); }</div>
<div class="line"><a name="l00712"></a><span class="lineno"> 712</span> <span class="comment"></span></div>
<div class="line"><a name="l00713"></a><span class="lineno"> 713</span> <span class="comment"> //! e1 AND (e1 IFF e2) ==> e2</span></div>
<div class="line"><a name="l00714"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#aeda4c57dfbe357a80a348da9ffa71072"> 714</a></span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#aeda4c57dfbe357a80a348da9ffa71072" title="e1 AND (e1 IFF e2) ==> e2">iffMP</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& e1, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& e1_iff_e2) {</div>
<div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#a59d055f2cf01f484ce36d56ddb82c8f8" title="Commonly used proof rules.">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#aebbcd4a194e4fdca0bcd16143fb03a75">iffMP</a>(e1, e1_iff_e2);</div>
<div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  }</div>
<div class="line"><a name="l00717"></a><span class="lineno"> 717</span> <span class="comment"></span></div>
<div class="line"><a name="l00718"></a><span class="lineno"> 718</span> <span class="comment"> //! ==> AND(e1,e2) IFF [simplified expr]</span></div>
<div class="line"><a name="l00719"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#aba1822f2d985b50f6405c290c3814c1a"> 719</a></span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#aba1822f2d985b50f6405c290c3814c1a" title="==> AND(e1,e2) IFF [simplified expr]">rewriteAnd</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e) {</div>
<div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#a59d055f2cf01f484ce36d56ddb82c8f8" title="Commonly used proof rules.">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#afb2ae30738c04b088459281d259a6d3a" title="==> AND(e1,e2) IFF [simplified expr]">rewriteAnd</a>(e);</div>
<div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  }</div>
<div class="line"><a name="l00722"></a><span class="lineno"> 722</span> <span class="comment"></span></div>
<div class="line"><a name="l00723"></a><span class="lineno"> 723</span> <span class="comment"> //! ==> OR(e1,...,en) IFF [simplified expr]</span></div>
<div class="line"><a name="l00724"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theory.html#ad58c336212c2669f3cf32c0915ee3788"> 724</a></span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#ad58c336212c2669f3cf32c0915ee3788" title="==> OR(e1,...,en) IFF [simplified expr]">rewriteOr</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e) {</div>
<div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theory.html#a59d055f2cf01f484ce36d56ddb82c8f8" title="Commonly used proof rules.">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#aa3cfb7d47a6d6bc84c85c7fa6a3e1242" title="==> OR(e1,...,en) IFF [simplified expr]">rewriteOr</a>(e);</div>
<div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  }</div>
<div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  <span class="comment"></span></div>
<div class="line"><a name="l00728"></a><span class="lineno"> 728</span> <span class="comment"> //! Derived rule for rewriting ITE</span></div>
<div class="line"><a name="l00729"></a><span class="lineno"> 729</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#a0f2e0c6647ff6282ee2f65116a82e13b" title="Derived rule for rewriting ITE.">rewriteIte</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);</div>
<div class="line"><a name="l00730"></a><span class="lineno"> 730</span> <span class="comment"></span></div>
<div class="line"><a name="l00731"></a><span class="lineno"> 731</span> <span class="comment"> //! Derived rule to create a new name for an expression</span></div>
<div class="line"><a name="l00732"></a><span class="lineno"> 732</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theory.html#a07c2391015494b5f71def510c1fb6e26" title="Derived rule to create a new name for an expression.">renameExpr</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e);</div>
<div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  <span class="comment"></span></div>
<div class="line"><a name="l00734"></a><span class="lineno"> 734</span> <span class="comment"> /*@}*/</span> <span class="comment">// End of Commonly Used Proof Rules</span></div>
<div class="line"><a name="l00735"></a><span class="lineno"> 735</span> </div>
<div class="line"><a name="l00736"></a><span class="lineno"> 736</span> </div>
<div class="line"><a name="l00737"></a><span class="lineno"> 737</span> };</div>
<div class="line"><a name="l00738"></a><span class="lineno"> 738</span> <span class="comment"></span></div>
<div class="line"><a name="l00739"></a><span class="lineno"> 739</span> <span class="comment">/*@}*/</span> <span class="comment">// End of group Theories</span></div>
<div class="line"><a name="l00740"></a><span class="lineno"> 740</span> </div>
<div class="line"><a name="l00741"></a><span class="lineno"> 741</span> }</div>
<div class="line"><a name="l00742"></a><span class="lineno"> 742</span> </div>
<div class="line"><a name="l00743"></a><span class="lineno"> 743</span> <span class="preprocessor">#endif</span></div>
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