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<a href="theorem_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 theorem.h</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * </span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * Author: Sergey Berezin</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * </span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Created: Dec 10 00:37:49 GMT 2002</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * <hr></span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * License to use, copy, modify, sell and/or distribute this software</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * and its documentation for any purpose is hereby granted without</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * royalty, subject to the terms and conditions defined in the \ref</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * LICENSE file provided with this distribution.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * </span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * <hr></span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * </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">// CLASS: Theorem</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">//</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// AUTHOR: Sergey Berezin, 07/05/02</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">//</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">// Abstract:</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">//</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">// A class representing a proven fact in CVC. It stores the theorem</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">// as a CVC expression, and in the proof prodicing mode also its</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment">// proof.</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">//</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">// The idea is to allow only a few trusted classes to create values of</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">// this class. If all the critical computations in the decision</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment">// procedures are done through the use of Theorems, then soundness of</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment">// these decision procedures will rely only on the soundness of the</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">// methods in the trusted classes (the inference rules).</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">//</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment">// Thus, proof checking can effectively be done at run-time on the</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment">// fly. Or the soundness may be potentially proven by static analysis</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment">// and many run-time checks can then be optimized away.</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment">//</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment">// This theorem.h file should be used by the decision procedures that</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment">// use Theorem.</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment">//</span><span class="comment"></span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment">////////////////////////////////////////////////////////////////////////</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"></span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment">// expr.h Has to be included outside of #ifndef, since it sources us</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment">// recursively (read comments in expr_value.h).</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#ifndef _cvc3__expr_h_</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="expr_8h.html" title="Definition of the API to expression package. See class Expr for details.">expr.h</a>"</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#ifndef _cvc3__theorem_h_</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor"></span><span class="preprocessor">#define _cvc3__theorem_h_</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#include "<a class="code" href="os_8h.html" title="Abstraction over different operating systems.">os.h</a>"</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">#include "<a class="code" href="proof_8h.html">proof.h</a>"</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keyword">namespace </span>CVC3 {</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="comment">// Declare the data holding classes but hide the definitions</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">class </span>TheoremManager;</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">class </span>TheoremValue;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">class </span>Assumptions;</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="comment">// Theorem is basically a wrapper around a pointer to a</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="comment">// TheoremValue, so that we can pass this class around by value.</span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="comment">// All the constructors of this class are private, so do not inherit</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="comment">// from it and do not try to create a value directly. Only</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">// TheoremProducer can create new Theorem instances.</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="comment">//</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="comment">// Theorems, unlike expressions, are NOT made unique, and it is</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="comment">// possible to have the same theorem in different scopes with</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="comment">// different assumptions and proofs. It is a deliberate feature,</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="comment">// since natural deduction sometimes requires proving the same</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="comment">// conclusion from different assumptions independently, e.g. in</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="comment">// disjunction elimination rule.</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html"> 76</a></span>  <span class="keyword">class </span><a class="code" href="os_8h.html#a0035aac6379df39aa69feba98b2751ba">CVC_DLL</a> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> {</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">private</span>:</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">// Make a theorem producing class our friend. No definition is</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="comment">// exposed here.</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#adb16a6e6bad96912c4150299576eaf9a"> 80</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classCVC3_1_1TheoremProducer.html">TheoremProducer</a>;</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">// Also allow our 3-valued cousin to create us</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#acc3b40272a636c6365e02a387cfc4c82"> 82</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classCVC3_1_1Theorem3.html" title="Theorem3.">Theorem3</a>;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="comment">// Also TheoremValue classes for assumptions</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#a2fc7fcb35dcb6d97f101ffb632ac1dcd"> 84</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classCVC3_1_1RegTheoremValue.html">RegTheoremValue</a>;</div>
<div class="line"><a name="l00085"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#add1e5fec863ffafbd22cac7aa0d1b689"> 85</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classCVC3_1_1RWTheoremValue.html">RWTheoremValue</a>;</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="comment">// Optimization: reflexivity theorems just store the exprValue pointer</span></div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="comment">// directly. Also, the lowest bit is set to 1 to indicate that its</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="comment">// a reflexivity theorem. This really helps performance!</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keyword">union </span>{</div>
<div class="line"><a name="l00091"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#a696e2281069af317ec3fb6510845ca6c"> 91</a></span>  intptr_t <a class="code" href="classCVC3_1_1Theorem.html#a696e2281069af317ec3fb6510845ca6c">d_thm</a>;</div>
<div class="line"><a name="l00092"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#a798f8085ec077b69aae198a155077774"> 92</a></span>  <a class="code" href="classCVC3_1_1ExprValue.html" title="The base class for holding the actual data in expressions.">ExprValue</a>* <a class="code" href="classCVC3_1_1Theorem.html#a798f8085ec077b69aae198a155077774">d_expr</a>;</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  };</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"> //! Compare Theorems by their expressions. Return -1, 0, or 1.</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment"></span> <span class="keyword">friend</span> <span class="keywordtype">int</span> <a class="code" href="namespaceCVC3.html#ac06ac2fd4db699104b790f98b7abba71">compare</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t1, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t2);<span class="comment"></span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment"> //! Compare a Theorem with an Expr (as if Expr is a Theorem)</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"></span> <span class="keyword">friend</span> <span class="keywordtype">int</span> <a class="code" href="namespaceCVC3.html#ac06ac2fd4db699104b790f98b7abba71">compare</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t1, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e2);<span class="comment"></span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment"> //! Compare Theorems by TheoremValue pointers. Return -1, 0, or 1.</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment"></span> <span class="keyword">friend</span> <span class="keywordtype">int</span> <a class="code" href="namespaceCVC3.html#af87b5038044e2f5706e30e5ed6f7584e">compareByPtr</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t1, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t2);<span class="comment"></span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment"> //! Equality is w.r.t. compare()</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#a6f08e5df7b32fccb7bba2e689518569e"> 102</a></span> <span class="comment"></span> <span class="keyword">friend</span> <span class="keywordtype">bool</span> <a class="code" href="namespaceCVC3.html#a8e164436388f2d87c971d9bbde973c58">operator==</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t1, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t2) </div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  { <span class="keywordflow">return</span> (<a class="code" href="namespaceCVC3.html#ac06ac2fd4db699104b790f98b7abba71">compare</a>(t1, t2)==0); }<span class="comment"></span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment"> //! Disequality is w.r.t. compare()</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#acf65eea626a36c24c83abcee026ec205"> 105</a></span> <span class="comment"></span> <span class="keyword">friend</span> <span class="keywordtype">bool</span> <a class="code" href="namespaceCVC3.html#a5aa953c549c2e103f3834c48bf6cb9a1">operator!=</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t1, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t2)</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  { <span class="keywordflow">return</span> (<a class="code" href="namespaceCVC3.html#ac06ac2fd4db699104b790f98b7abba71">compare</a>(t1, t2) != 0); }</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"> //! Constructor only used by TheoremValue for assumptions</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#a2fefec275dfdf6d8932c6f74b03bec4d"> 109</a></span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html#a2fefec275dfdf6d8932c6f74b03bec4d" title="Constructor only used by TheoremValue for assumptions.">Theorem</a>(<a class="code" href="classCVC3_1_1TheoremValue.html">TheoremValue</a>* thm) :d_thm(((intptr_t)thm) | 0x1) {}</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="comment"></span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment"> //! Constructor for a new theorem </span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>(<a class="code" href="classCVC3_1_1TheoremManager.html">TheoremManager</a>* tm, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> &thm, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Assumptions.html">Assumptions</a>& assump,</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Proof.html">Proof</a>& pf, <span class="keywordtype">bool</span> isAssump = <span class="keyword">false</span>, <span class="keywordtype">int</span> scope = -1);</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="comment"></span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment"> //! Constructor for rewrite theorems.</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment"></span><span class="comment"> /*! These use a special efficient subclass of TheoremValue for</span></div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment"> * theorems which represent rewrites: A |- t = t' or A |- phi<=>phi'</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>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>(<a class="code" href="classCVC3_1_1TheoremManager.html">TheoremManager</a>* tm, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& lhs, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& rhs,</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Assumptions.html">Assumptions</a>& assump, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Proof.html">Proof</a>& pf, <span class="keywordtype">bool</span> isAssump = <span class="keyword">false</span>,</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordtype">int</span> scope = -1);</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="comment"></span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment"> //! Constructor for a reflexivity theorem: |-t=t or |-phi<=>phi</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment"></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</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="l00125"></a><span class="lineno"> 125</span> </div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordtype">void</span> recursivePrint(<span class="keywordtype">int</span>& i) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordtype">void</span> getAssumptionsRec(std::set<Expr>& assumptions) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordtype">void</span> getAssumptionsAndCongRec(std::set<Expr>& assumptions,</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  std::vector<Expr>& congruences) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordtype">void</span> GetSatAssumptionsRec(std::vector<Theorem>& assumptions) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div>
<div class="line"><a name="l00132"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#a67e2a295b1598057cfbb51120a0c1ad6"> 132</a></span>  <a class="code" href="classCVC3_1_1ExprValue.html" title="The base class for holding the actual data in expressions.">ExprValue</a>* <a class="code" href="classCVC3_1_1Theorem.html#a67e2a295b1598057cfbb51120a0c1ad6">exprValue</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> d_expr; }</div>
<div class="line"><a name="l00133"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#a12de358e2b6cb67415f508ceca6913d1"> 133</a></span>  <a class="code" href="classCVC3_1_1TheoremValue.html">TheoremValue</a>* <a class="code" href="classCVC3_1_1Theorem.html#a12de358e2b6cb67415f508ceca6913d1">thm</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> (<a class="code" href="classCVC3_1_1TheoremValue.html">TheoremValue</a>*)(d_thm & (~(0x1))); }</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="comment">// recusive function to print theorems and all assumptions recursively</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="comment">// important: this function will corrupt all flags!! so exercise </span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="comment">// caution when using in any graph traversals </span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="comment">// (probably more useful to call it only before a crash)</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#ad9da69b34ab2bab4192e5977e5c10498"> 140</a></span>  <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theorem.html#ad9da69b34ab2bab4192e5977e5c10498">printDebug</a>()<span class="keyword"> const </span>{ </div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  clearAllFlags();</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  setCachedValue(0);</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  setFlag();</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordtype">int</span> i = 1; </div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  recursivePrint(i);</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  }</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="comment">// Default constructor creates Null theorem to allow untrusted</span></div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">// code declare local vars without initialization (vector<Theorem></span></div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// may need that, for instance).</span></div>
<div class="line"><a name="l00151"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#a4b7574a16eed728fac6e37d2404fdbf8"> 151</a></span>  <a class="code" href="classCVC3_1_1Theorem.html#a4b7574a16eed728fac6e37d2404fdbf8">Theorem</a>(): d_thm(0) { }</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="comment">// Copy constructor</span></div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> &th);</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="comment">// Assignment operator</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& operator=(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> &th);</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="comment">// Destructor</span></div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  ~<a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>();</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="comment">// Test if we are running in a proof production mode and with assumptions</span></div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordtype">bool</span> withProof() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordtype">bool</span> withAssumptions() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div>
<div class="line"><a name="l00164"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#afc6fdb0507eb3669e28d9be5ed0bd333"> 164</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theorem.html#afc6fdb0507eb3669e28d9be5ed0bd333">isNull</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> d_thm == 0; }</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="comment">// True if theorem is of the form t=t' or phi iff phi'</span></div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordtype">bool</span> isRewrite() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="comment">// True if theorem was created using assumpRule</span></div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordtype">bool</span> isAssump() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="comment">// True if reflexivity theorem</span></div>
<div class="line"><a name="l00171"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#a16f074e60b9e076187efb478889d2c47"> 171</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theorem.html#a16f074e60b9e076187efb478889d2c47">isRefl</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> d_thm && !(d_thm & 0x1); }</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  </div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="comment">// Return the theorem value as an Expr</span></div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> getExpr() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& getLHS() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& getRHS() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordtype">void</span> GetSatAssumptions(std::vector<Theorem>& assumptions) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> </div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="comment">// Return the assumptions. a should be empty and uninitialized</span></div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="comment">// void getAssumptions(Assumptions& a) const;</span></div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="comment">// Recurse to get actual assumptions</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  </div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordtype">void</span> getLeafAssumptions(std::vector<Expr>& assumptions,</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordtype">bool</span> negate = <span class="keyword">false</span>) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="comment">// Same as above but also collects congruences in the proof tree</span></div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordtype">void</span> getAssumptionsAndCong(std::vector<Expr>& assumptions,</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  std::vector<Expr>& congruences,</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordtype">bool</span> negate = <span class="keyword">false</span>) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Assumptions.html">Assumptions</a>& getAssumptionsRef() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="comment">// Return the proof of the theorem. If running without proofs,</span></div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="comment">// return the Null proof.</span></div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <a class="code" href="classCVC3_1_1Proof.html">Proof</a> getProof() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="comment">// Return the lowest scope level at which this theorem is valid.</span></div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="comment">// Value -1 means no information is available.</span></div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordtype">int</span> getScope() <span class="keyword">const</span>;<span class="comment"></span></div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="comment"> //! Return quantification level for this theorem</span></div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="comment"></span> <span class="keywordtype">unsigned</span> getQuantLevel() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordtype">unsigned</span> getQuantLevelDebug() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="comment"></span></div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="comment"> //! Set the quantification level for this theorem</span></div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="comment"></span> <span class="keywordtype">void</span> setQuantLevel(<span class="keywordtype">unsigned</span> level);</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> </div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="comment">// hash</span></div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordtype">size_t</span> <a class="code" href="structHash_1_1hash.html">hash</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> </div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="comment">// Printing</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  std::string toString() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> </div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="comment">// For debugging</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordtype">void</span> printx() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordtype">void</span> printxnodag() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordtype">void</span> pprintx() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keywordtype">void</span> pprintxnodag() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  </div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordtype">void</span> print() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="comment"></span></div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="comment"> /*! \name Methods for Theorem Attributes</span></div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="comment"> * Several attributes used in conflict analysis and assumptions</span></div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="comment"> * graph traversals.</span></div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment"> * @{</span></div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment"> */</span><span class="comment"></span></div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment"> //! Check if the flag attribute is set</span></div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment"></span> <span class="keywordtype">bool</span> isFlagged() <span class="keyword">const</span>;<span class="comment"></span></div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment"> //! Clear the flag attribute in all the theorems</span></div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment"></span> <span class="keywordtype">void</span> clearAllFlags() <span class="keyword">const</span>;<span class="comment"></span></div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment"> //! Set the flag attribute</span></div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="comment"></span> <span class="keywordtype">void</span> setFlag() <span class="keyword">const</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="comment"> //! Set flag stating that theorem is an instance of substitution</span></div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="comment"></span> <span class="keywordtype">void</span> setSubst() <span class="keyword">const</span>;<span class="comment"></span></div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="comment"> //! Is theorem an instance of substitution</span></div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="comment"></span> <span class="keywordtype">bool</span> isSubst() <span class="keyword">const</span>;<span class="comment"></span></div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="comment"> //! Set the "expand" attribute</span></div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="comment"></span> <span class="keywordtype">void</span> setExpandFlag(<span class="keywordtype">bool</span> val) <span class="keyword">const</span>;<span class="comment"></span></div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="comment"> //! Check the "expand" attribute</span></div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="comment"></span> <span class="keywordtype">bool</span> getExpandFlag() <span class="keyword">const</span>;<span class="comment"></span></div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="comment"> //! Set the "literal" attribute</span></div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="comment"></span><span class="comment"> /*! The expression of this theorem will be added as a conflict</span></div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="comment"> * clause literal */</span></div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordtype">void</span> setLitFlag(<span class="keywordtype">bool</span> val) <span class="keyword">const</span>;<span class="comment"></span></div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="comment"> //! Check the "literal" attribute</span></div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="comment"></span><span class="comment"> /*! The expression of this theorem will be added as a conflict</span></div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span> <span class="comment"> * clause literal */</span></div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordtype">bool</span> getLitFlag() <span class="keyword">const</span>;<span class="comment"></span></div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="comment"> //! Check if the theorem is a literal</span></div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="comment"></span> <span class="keywordtype">bool</span> isAbsLiteral() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> </div>
<div class="line"><a name="l00252"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#a657f0037f907743988443bffdf2e505c"> 252</a></span>  <span class="keywordtype">bool</span> refutes(<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></div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="keyword"> </span>{</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordflow">return</span></div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  (e.<a class="code" href="group__ExprPkg.html#ga1a898858ccadce833df5a294c7740f11">isNot</a>() && e[0] == getExpr()) ||</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  (getExpr().isNot() && getExpr()[0] == e);</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  }</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> </div>
<div class="line"><a name="l00259"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#afd8511ead1dfc424a75089f4b4afb95d"> 259</a></span>  <span class="keywordtype">bool</span> proves(<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></div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="keyword"> </span>{</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">return</span> getExpr() == e;</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  }</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> </div>
<div class="line"><a name="l00264"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#a1d50e47a6c0a1dc6ac9328c5b8e63d1c"> 264</a></span>  <span class="keywordtype">bool</span> matches(<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></div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="keyword"> </span>{</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="keywordflow">return</span> proves(e) || refutes(e);</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  }</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> </div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="keywordtype">void</span> setCachedValue(<span class="keywordtype">int</span> value) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordtype">int</span> getCachedValue() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="comment"></span></div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> <span class="comment"> /*!@}*/</span> <span class="comment">// End of Attribute methods</span></div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="comment"></span></div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="comment"> //! Printing a theorem to a stream, calling it "name".</span></div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="comment"></span> std::ostream& print(std::ostream& os, <span class="keyword">const</span> std::string& name) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  </div>
<div class="line"><a name="l00277"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#afde7ac3dde23e989a6df667b6836ecfa"> 277</a></span>  <span class="keyword">friend</span> std::ostream& <a class="code" href="classCVC3_1_1Theorem.html#afde7ac3dde23e989a6df667b6836ecfa">operator<<</a>(std::ostream& os, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t) {</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keywordflow">return</span> t.<a class="code" href="classCVC3_1_1Theorem.html#af412e1fca4a31f24a63c948f85c18358">print</a>(os, <span class="stringliteral">"Theorem"</span>);</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  }</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span> </div>
<div class="line"><a name="l00281"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#aaf9a1a9a97d765b069eac3d3460545be"> 281</a></span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code" href="search__fast_8cpp.html#a262e92a64449205cbd952a704be68952">TheoremEq</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t1, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t2) </div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  { </div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(!t1.<a class="code" href="classCVC3_1_1Theorem.html#afc6fdb0507eb3669e28d9be5ed0bd333">isNull</a>() && !t2.<a class="code" href="classCVC3_1_1Theorem.html#afc6fdb0507eb3669e28d9be5ed0bd333">isNull</a>(), </div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="stringliteral">"AssumptionsValue() Null Theorem passed to constructor"</span>);</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordflow">return</span> t1 == t2;</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  }</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  }; <span class="comment">// End of Theorem</span></div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> </div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="comment">/*****************************************************************************/</span><span class="comment"></span></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"> *\class Theorem3</span></div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="comment"> *\brief Theorem3</span></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"> * Author: Sergey Berezin</span></div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="comment"> * Created: Tue Nov 4 17:57:07 2003</span></div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span> <span class="comment"> * Implements the 3-valued theorem used for the user assertions and</span></div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="comment"> * the result of query. It is simply a wrapper around class Theorem,</span></div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="comment"> * but has a different semantic meaning: the formula may have partial</span></div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span> <span class="comment"> * functions and has the Kleene's 3-valued interpretation. The fact</span></div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> <span class="comment"> * that a Theorem3 value is derived means that the TCCs for the</span></div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span> <span class="comment"> * formula and all of its assumptions are valid in the current</span></div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span> <span class="comment"> * context, and the proofs of TCCs contribute to the set of</span></div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="comment"> * assumptions.</span></div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span> <span class="comment">/*****************************************************************************/</span></div>
<div class="line"><a name="l00308"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html"> 308</a></span>  <span class="keyword">class </span><a class="code" href="classCVC3_1_1Theorem3.html" title="Theorem3.">Theorem3</a> {</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keyword">private</span>:</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="comment">// Make a theorem producing class our friend. No definition is</span></div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="comment">// exposed here.</span></div>
<div class="line"><a name="l00312"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#adb16a6e6bad96912c4150299576eaf9a"> 312</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classCVC3_1_1TheoremProducer.html">TheoremProducer</a>;</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div>
<div class="line"><a name="l00314"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632"> 314</a></span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>;</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> </div>
<div class="line"><a name="l00316"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#a1d12c9cc45e21f2bef8b4065f23b1ecd"> 316</a></span>  <span class="keyword">friend</span> <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theorem3.html#a1d12c9cc45e21f2bef8b4065f23b1ecd">operator==</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem3.html" title="Theorem3.">Theorem3</a>& t1, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem3.html" title="Theorem3.">Theorem3</a>& t2) {</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keywordflow">return</span> t1.<a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a> == t2.<a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>;</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  }</div>
<div class="line"><a name="l00319"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#a08914251eb8cbf0ced80d277a07b6827"> 319</a></span>  <span class="keyword">friend</span> <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theorem3.html#a08914251eb8cbf0ced80d277a07b6827">operator!=</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem3.html" title="Theorem3.">Theorem3</a>& t1, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem3.html" title="Theorem3.">Theorem3</a>& t2) {</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keywordflow">return</span> t1.<a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a> != t2.<a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>;</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  }</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span> </div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span> </div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="comment">// Private constructors for a new theorem </span></div>
<div class="line"><a name="l00325"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#a1986607c85de1a0550ebe7759bf5b6a4"> 325</a></span>  <a class="code" href="classCVC3_1_1Theorem3.html#ae64084287342d9fa9374a4db1981bbd5">Theorem3</a>(<a class="code" href="classCVC3_1_1TheoremManager.html">TheoremManager</a>* tm, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> &thm, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Assumptions.html">Assumptions</a>& assump,</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Proof.html">Proof</a>& pf, <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theorem3.html#aba6e80e63438ef74f027476ca085781a">isAssump</a> = <span class="keyword">false</span>, <span class="keywordtype">int</span> scope = -1)</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  : <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>(tm, thm, assump, pf, <a class="code" href="classCVC3_1_1Theorem3.html#aba6e80e63438ef74f027476ca085781a">isAssump</a>, scope) { }</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> </div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="comment">// Constructors for rewrite theorems. These use a special efficient</span></div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="comment">// subclass of TheoremValue for theorems which represent rewrites:</span></div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="comment">// A |- t = t' or A |- phi iff phi'</span></div>
<div class="line"><a name="l00332"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#a5495a662364c65492dceb1108a45d55c"> 332</a></span>  <a class="code" href="classCVC3_1_1Theorem3.html#ae64084287342d9fa9374a4db1981bbd5">Theorem3</a>(<a class="code" href="classCVC3_1_1TheoremManager.html">TheoremManager</a>* tm, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& lhs, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& rhs,</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Assumptions.html">Assumptions</a>& assump, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Proof.html">Proof</a>& pf)</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  : <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>(tm, lhs, rhs, assump, pf) { }</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span> </div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="comment">// recusive function to print theorems and all assumptions recursively</span></div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="comment">// important: this function will corrupt all flags!! so exercise </span></div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="comment">// caution when using in any graph traversals </span></div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="comment">// (probably more useful to call it only before a crash)</span></div>
<div class="line"><a name="l00341"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#ab7984ea5eb9c9bdba751fc9ea9d6cc90"> 341</a></span>  <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theorem3.html#ab7984ea5eb9c9bdba751fc9ea9d6cc90">printDebug</a>()<span class="keyword"> const </span>{ <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>.<a class="code" href="classCVC3_1_1Theorem.html#ad9da69b34ab2bab4192e5977e5c10498">printDebug</a>(); }</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span> </div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="comment">// Default constructor creates Null theorem to allow untrusted</span></div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="comment">// code declare local vars without initialization (vector<Theorem></span></div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="comment">// may need that, for instance).</span></div>
<div class="line"><a name="l00346"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#ae64084287342d9fa9374a4db1981bbd5"> 346</a></span>  <a class="code" href="classCVC3_1_1Theorem3.html#ae64084287342d9fa9374a4db1981bbd5">Theorem3</a>() { }</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span> </div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="comment">// Destructor</span></div>
<div class="line"><a name="l00349"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#a55e28790faec403ea8a9a0b5a718eab1"> 349</a></span>  <span class="keyword">virtual</span> <a class="code" href="classCVC3_1_1Theorem3.html#a55e28790faec403ea8a9a0b5a718eab1">~Theorem3</a>() { }</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span> </div>
<div class="line"><a name="l00351"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#a1f2b0509853067114494079f955de741"> 351</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theorem3.html#a1f2b0509853067114494079f955de741">isNull</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>.<a class="code" href="classCVC3_1_1Theorem.html#afc6fdb0507eb3669e28d9be5ed0bd333">isNull</a>(); }</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span> </div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="comment">// True if theorem is of the form t=t' or phi iff phi'</span></div>
<div class="line"><a name="l00354"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#ace6f5dda051da7db8a4adf74a723852c"> 354</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theorem3.html#ace6f5dda051da7db8a4adf74a723852c">isRewrite</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>.<a class="code" href="classCVC3_1_1Theorem.html#a362c1d70e03803d804bbe300e5f6dc87">isRewrite</a>(); }</div>
<div class="line"><a name="l00355"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#aba6e80e63438ef74f027476ca085781a"> 355</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theorem3.html#aba6e80e63438ef74f027476ca085781a">isAssump</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>.<a class="code" href="classCVC3_1_1Theorem.html#a05282db6832afb4f198d8c6b2b67aeb1">isAssump</a>(); }</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  </div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="comment">// Return the theorem value as an Expr</span></div>
<div class="line"><a name="l00358"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#a744788782cc996d5b914533fe7304352"> 358</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_1Theorem3.html#a744788782cc996d5b914533fe7304352">getExpr</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>.<a class="code" href="classCVC3_1_1Theorem.html#af2b97ae5d270ddf1013bf4f3867a7e5d">getExpr</a>(); }</div>
<div class="line"><a name="l00359"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#a86b1b2342e05df0b6c965df22ac6bdc5"> 359</a></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_1Theorem3.html#a86b1b2342e05df0b6c965df22ac6bdc5">getLHS</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>.<a class="code" href="classCVC3_1_1Theorem.html#a206c04f39fbbcacef2337148675553f4">getLHS</a>(); }</div>
<div class="line"><a name="l00360"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#a1da681e13e1dd2bfefb0d21027e20eb6"> 360</a></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_1Theorem3.html#a1da681e13e1dd2bfefb0d21027e20eb6">getRHS</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>.<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>(); }</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span> </div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="comment">// Return the assumptions.</span></div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="comment">// It's an error if called while running without assumptions.</span></div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="comment">// void getAssumptions(Assumptions& a) const { d_thm.getAssumptions(a); }</span></div>
<div class="line"><a name="l00365"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#a3bf0a31a2adaabfd7a37d61e990fa9ea"> 365</a></span>  <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Assumptions.html">Assumptions</a>& <a class="code" href="classCVC3_1_1Theorem3.html#a3bf0a31a2adaabfd7a37d61e990fa9ea">getAssumptionsRef</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>.<a class="code" href="classCVC3_1_1Theorem.html#a5e9ab00a613df15cc02f55edb55a67b3">getAssumptionsRef</a>();</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  }</div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="comment">// Return the proof of the theorem. If running without proofs,</span></div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="comment">// return the Null proof.</span></div>
<div class="line"><a name="l00370"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#a05c74972ebc3932829fa32ca237880db"> 370</a></span>  <a class="code" href="classCVC3_1_1Proof.html">Proof</a> <a class="code" href="classCVC3_1_1Theorem3.html#a05c74972ebc3932829fa32ca237880db">getProof</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>.<a class="code" href="classCVC3_1_1Theorem.html#a2d8352c07a756c3837683a27a1e659ef">getProof</a>(); }</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> </div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="comment">// Return the lowest scope level at which this theorem is valid.</span></div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="comment">// Value -1 means no information is available.</span></div>
<div class="line"><a name="l00374"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#a153b7d792f901a481d1eb4c91c885330"> 374</a></span>  <span class="keywordtype">int</span> <a class="code" href="classCVC3_1_1Theorem3.html#a153b7d792f901a481d1eb4c91c885330">getScope</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>.<a class="code" href="classCVC3_1_1Theorem.html#a112466d9793abcf97015233ffdc4ec5e">getScope</a>(); }</div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span> </div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="comment">// Test if we are running in a proof production mode and with assumptions</span></div>
<div class="line"><a name="l00377"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#a099ac3dc23ce274b26a25cd9e5059502"> 377</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theorem3.html#a099ac3dc23ce274b26a25cd9e5059502">withProof</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>.<a class="code" href="classCVC3_1_1Theorem.html#ad4573ca6be017cab3c83d28c2dbcebd8">withProof</a>(); }</div>
<div class="line"><a name="l00378"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#a49abf6d71c6190f1400b5146b61b0872"> 378</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theorem3.html#a49abf6d71c6190f1400b5146b61b0872">withAssumptions</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>.<a class="code" href="classCVC3_1_1Theorem.html#a90349125fe644e8a075e1a47a49872c7">withAssumptions</a>(); }</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span> </div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <span class="comment">// Printing</span></div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  std::string <a class="code" href="classCVC3_1_1Theorem3.html#a3712f50eb83d3b485aab55f660bed77a">toString</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span> </div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="comment">// For debugging</span></div>
<div class="line"><a name="l00384"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#a4a2253b9fa2508aedd3dded623e283ad"> 384</a></span>  <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theorem3.html#a4a2253b9fa2508aedd3dded623e283ad">printx</a>()<span class="keyword"> const </span>{ <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>.<a class="code" href="classCVC3_1_1Theorem.html#aeb41e125749338e05d680beca6df9ee4">printx</a>(); }</div>
<div class="line"><a name="l00385"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#ababd51a0131a57f96c0316f7f8f2a6c9"> 385</a></span>  <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1Theorem3.html#ababd51a0131a57f96c0316f7f8f2a6c9">print</a>()<span class="keyword"> const </span>{ <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>.<a class="code" href="classCVC3_1_1Theorem.html#af412e1fca4a31f24a63c948f85c18358">print</a>(); }</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"> 387</span> <span class="comment"> //! Check if the theorem is a literal</span></div>
<div class="line"><a name="l00388"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#a31be5df9f946e3a6f2a75f673db863cb"> 388</a></span> <span class="comment"></span> <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Theorem3.html#a31be5df9f946e3a6f2a75f673db863cb" title="Check if the theorem is a literal.">isAbsLiteral</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>.<a class="code" href="classCVC3_1_1Theorem.html#aed1590a02166f6099e5538dbf681a60c" title="Check if the theorem is a literal.">isAbsLiteral</a>(); }</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span> </div>
<div class="line"><a name="l00390"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#af5109554e84f3a7b92eea93606cbc7bc"> 390</a></span>  <span class="keyword">friend</span> std::ostream& <a class="code" href="classCVC3_1_1Theorem3.html#af5109554e84f3a7b92eea93606cbc7bc">operator<<</a>(std::ostream& os, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem3.html" title="Theorem3.">Theorem3</a>& t) {</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keywordflow">return</span> t.<a class="code" href="classCVC3_1_1Theorem3.html#ab03f48bf3430eb93d82983dd2bc8a632">d_thm</a>.<a class="code" href="classCVC3_1_1Theorem.html#af412e1fca4a31f24a63c948f85c18358">print</a>(os, <span class="stringliteral">"Theorem3"</span>);</div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  }</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  }; <span class="comment">// End of Theorem3</span></div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span> <span class="comment"></span></div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span> <span class="comment"> //! "Less" comparator for theorems by TheoremValue pointers</span></div>
<div class="line"><a name="l00396"></a><span class="lineno"><a class="code" href="classCVC3_1_1TheoremLess.html"> 396</a></span> <span class="comment"></span> <span class="keyword">class </span><a class="code" href="classCVC3_1_1TheoremLess.html" title=""Less" comparator for theorems by TheoremValue pointers">TheoremLess</a> {</div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00398"></a><span class="lineno"><a class="code" href="classCVC3_1_1TheoremLess.html#a2a853c2c34833645b058c4c07b21fcc2"> 398</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1TheoremLess.html#a2a853c2c34833645b058c4c07b21fcc2">operator()</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t1, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t2)<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="keywordflow">return</span> (<a class="code" href="namespaceCVC3.html#af87b5038044e2f5706e30e5ed6f7584e">compareByPtr</a>(t1, t2) < 0);</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  }</div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  };</div>
<div class="line"><a name="l00402"></a><span class="lineno"><a class="code" href="namespaceCVC3.html#ae8220d283ddfdaa8f4e0da0a03fa7ff4"> 402</a></span>  <span class="keyword">typedef</span> std::map<Theorem,bool, TheoremLess> <a class="code" href="namespaceCVC3.html#ae8220d283ddfdaa8f4e0da0a03fa7ff4">TheoremMap</a>;</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span> </div>
<div class="line"><a name="l00404"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem.html#ac4b1c9570ffb9cc901627ef2abb9ff77"> 404</a></span>  <span class="keyword">inline</span> std::string <a class="code" href="classCVC3_1_1Theorem.html#ac4b1c9570ffb9cc901627ef2abb9ff77">Theorem::toString</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  std::ostringstream ss;</div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  ss << (*this);</div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keywordflow">return</span> ss.str();</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  }</div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span> </div>
<div class="line"><a name="l00410"></a><span class="lineno"><a class="code" href="classCVC3_1_1Theorem3.html#a3712f50eb83d3b485aab55f660bed77a"> 410</a></span>  <span class="keyword">inline</span> std::string <a class="code" href="classCVC3_1_1Theorem3.html#a3712f50eb83d3b485aab55f660bed77a">Theorem3::toString</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  std::ostringstream ss;</div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  ss << (*this);</div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="keywordflow">return</span> ss.str();</div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  }</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span> </div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="comment">// Merge assumptions from different theorems</span></div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span> <span class="comment">// inline Assumptions merge(const Theorem& t1, const Theorem& t2) {</span></div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span> <span class="comment">// return Assumptions(t1, t2);</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">// inline void merge(Assumptions& a, const Theorem& t) {</span></div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span> <span class="comment">// a.add(t);</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="comment">// inline Assumptions merge(const std::vector<Theorem>& t) {</span></div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span> <span class="comment">// return Assumptions(t);</span></div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span> <span class="comment">// }</span></div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span> </div>
<div class="line"><a name="l00427"></a><span class="lineno"><a class="code" href="namespaceCVC3.html#a5d869d6f1c2d4780875deea3828247e1"> 427</a></span>  <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="namespaceCVC3.html#ad3e3964a0b8cd9e2749de47b053b9d97">operator<</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t1, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t2)</div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  { <span class="keywordflow">return</span> <a class="code" href="namespaceCVC3.html#ac06ac2fd4db699104b790f98b7abba71">compare</a>(t1, t2) < 0; }</div>
<div class="line"><a name="l00429"></a><span class="lineno"><a class="code" href="namespaceCVC3.html#a3f7d84a4848e35fdefb0cf032716139c"> 429</a></span>  <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="namespaceCVC3.html#abccc88aac4f7652def737f1081dc7a89">operator<=</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t1, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t2)</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  { <span class="keywordflow">return</span> <a class="code" href="namespaceCVC3.html#ac06ac2fd4db699104b790f98b7abba71">compare</a>(t1, t2) <= 0; }</div>
<div class="line"><a name="l00431"></a><span class="lineno"><a class="code" href="namespaceCVC3.html#aafc08e614f90df8f0d23503c3fe13ef4"> 431</a></span>  <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="namespaceCVC3.html#a0d82fd3eb68860cbd01ae86b2b9e3c66">operator></a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t1, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t2)</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  { <span class="keywordflow">return</span> <a class="code" href="namespaceCVC3.html#ac06ac2fd4db699104b790f98b7abba71">compare</a>(t1, t2) > 0; }</div>
<div class="line"><a name="l00433"></a><span class="lineno"><a class="code" href="namespaceCVC3.html#a7d4b62b76a23fdc6b341f9f8c6a3aa4c"> 433</a></span>  <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="namespaceCVC3.html#af997ba8407b661bf2ffe2cb6f52c3e3b">operator>=</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t1, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t2)</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  { <span class="keywordflow">return</span> <a class="code" href="namespaceCVC3.html#ac06ac2fd4db699104b790f98b7abba71">compare</a>(t1, t2) >= 0; }</div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span> </div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span> } <span class="comment">// end of namespace CVC3</span></div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span> </div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span> <span class="preprocessor">#include "<a class="code" href="hash__fun_8h.html" title="hash functions">hash_fun.h</a>"</span></div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span> <span class="keyword">namespace </span>Hash</div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span> {</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span> </div>
<div class="line"><a name="l00442"></a><span class="lineno"><a class="code" href="structHash_1_1hash_3_01CVC3_1_1Theorem_01_4.html"> 442</a></span> <span class="keyword">template</span><> <span class="keyword">struct </span><a class="code" href="structHash_1_1hash.html">hash</a><CVC3::Theorem></div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span> {</div>
<div class="line"><a name="l00444"></a><span class="lineno"><a class="code" href="structHash_1_1hash_3_01CVC3_1_1Theorem_01_4.html#a4bfe0bdb897f6190c56153b4bdf2f97e"> 444</a></span>  <span class="keywordtype">size_t</span> <a class="code" href="structHash_1_1hash_3_01CVC3_1_1Theorem_01_4.html#a4bfe0bdb897f6190c56153b4bdf2f97e">operator()</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">CVC3::Theorem</a>& e)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> e.<a class="code" href="classCVC3_1_1Theorem.html#abe268eaf2b89ffdc4ccb291c0a2eaeb9">hash</a>(); }</div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span> };</div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span> </div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span> }</div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span> </div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span> <span class="preprocessor">#endif</span></div>
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