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<div class="title">expr_transform.cpp</div> </div>
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<a href="expr__transform_8cpp.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 expr_transform.cpp</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: Ying Hu, Clark Barrett</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: Jun 05 2003</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> </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">#include "<a class="code" href="expr__transform_8h.html" title="Generally Useful Expression Transformations.">expr_transform.h</a>"</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "<a class="code" href="theory__core_8h.html">theory_core.h</a>"</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "<a class="code" href="theory__arith_8h.html">theory_arith.h</a>"</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "<a class="code" href="command__line__flags_8h.html">command_line_flags.h</a>"</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "<a class="code" href="core__proof__rules_8h.html" title="Proof rules used by theory_core.">core_proof_rules.h</a>"</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <set></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> </div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">using namespace </span>std;</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">using namespace </span>CVC3;</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a name="l00034"></a><span class="lineno"><a class="code" href="classCVC3_1_1ExprTransform.html#a7bf5ddc9291a65cc5fa55af9f3a7f338"> 34</a></span> ExprTransform::ExprTransform(<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>* core)</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  : d_core(core)</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> {</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a> = <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1Theory.html#a50802b148e8192178cf790e6c45ddff3" title="Get a pointer to common proof rules.">getCommonRules</a>(); </div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a> = <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a261880d3c6b9b852de5e1d146b9e1731">getCoreRules</a>();</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> }</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
<div class="line"><a name="l00042"></a><span class="lineno"><a class="code" href="classCVC3_1_1ExprTransform.html#aafc3b026dbacc81d82b75a45b702b0a4"> 42</a></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1ExprTransform.html#aafc3b026dbacc81d82b75a45b702b0a4" title="Simplification that avoids stack overflow.">ExprTransform::smartSimplify</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e, <a class="code" href="classCVC3_1_1ExprMap.html">ExprMap<bool></a>& cache)</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>  <a class="code" href="classCVC3_1_1ExprMap.html">ExprMap<bool>::iterator</a> it;</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  vector<Expr> operatorStack;</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  vector<int> childStack;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</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="l00048"></a><span class="lineno"> 48</span> </div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  operatorStack.push_back(e);</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  childStack.push_back(0);</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">while</span> (!operatorStack.empty()) {</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(operatorStack.size() == childStack.size(), <span class="stringliteral">"Invariant violated"</span>);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">if</span> (childStack.back() < operatorStack.back().arity()) {</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  e2 = operatorStack.back()[childStack.back()++];</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  it = cache.<a class="code" href="classCVC3_1_1ExprMap.html#ae50ab1874dd63b575553e7db769abe28">find</a>(e2);</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">if</span> (it != cache.<a class="code" href="classCVC3_1_1ExprMap.html#a283ae6c44308cbdda0d82da5a16e52c8">end</a>() || e2.<a class="code" href="group__ExprPkg.html#ga4dc94c33ae308ff8d9d004f49df8f42b">hasFind</a>() ||</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  e2.<a class="code" href="group__ExprPkg.html#ga99348741c5062f8c8e62962b787a73fd" title="Return true if there is a valid cached value for calling simplify on this Expr.">validSimpCache</a>() || e2.<a class="code" href="group__ExprPkg.html#ga28b901d05e52a5c646f83a95cc74f94b">arity</a>() == 0) <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">if</span> (operatorStack.size() >= 5000) {</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#aafc3b026dbacc81d82b75a45b702b0a4" title="Simplification that avoids stack overflow.">smartSimplify</a>(e2, cache);</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  cache[e2] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  }</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  operatorStack.push_back(e2);</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  childStack.push_back(0);</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  }</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  cache[operatorStack.back()] = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  operatorStack.pop_back();</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  childStack.pop_back();</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  }</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  }</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(childStack.empty(), <span class="stringliteral">"Invariant violated"</span>);</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a8a66da5ca687474a3a725448a3be8c41" title="Top-level simplifier.">simplify</a>(e);</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</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> </div>
<div class="line"><a name="l00079"></a><span class="lineno"><a class="code" href="classCVC3_1_1ExprTransform.html#a39652560061ab1172040113d9dfa25f6"> 79</a></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1ExprTransform.html#a39652560061ab1172040113d9dfa25f6">ExprTransform::preprocess</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="l00080"></a><span class="lineno"> 80</span> {</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">// Force simplifier to run</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1Theory.html#abc2e30308c9e1f3cf752cfe8d939df1e" title="Access to ExprManager.">getEM</a>()-><a class="code" href="group__EM__Priv.html#gaba358e1731ad9309e52e64eb9ce60755" title="Invalidate the simplifier's cache tag.">invalidateSimpCache</a>();</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a2e0118c395ece4dfcfae018628e3b08b" title="Set the flag for the preprocessor.">setInPP</a>();</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a61c1fe56b4ed9744006883a7784ddb71">reflexivityRule</a>(e);</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">if</span> (<a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a46b2792a5c24f95ccfc3fbfc0456b09f">getFlags</a>()[<span class="stringliteral">"preprocess"</span>].getBool()) {</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span> (<a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a46b2792a5c24f95ccfc3fbfc0456b09f">getFlags</a>()[<span class="stringliteral">"pp-pushneg"</span>].getBool()) {</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#ab2757afee881751f99c86499400aef44" title="Push all negations down to the leaves.">pushNegation</a>(e);</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  }</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <a class="code" href="classCVC3_1_1ExprMap.html">ExprMap<bool></a> cache;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">if</span> (<a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a46b2792a5c24f95ccfc3fbfc0456b09f">getFlags</a>()[<span class="stringliteral">"pp-bryant"</span>].getBool()) {</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(res, <a class="code" href="classCVC3_1_1ExprTransform.html#aafc3b026dbacc81d82b75a45b702b0a4" title="Simplification that avoids stack overflow.">smartSimplify</a>(res.<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>(), cache));</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(res, <a class="code" href="classCVC3_1_1ExprTransform.html#a4d3d970b0c48c6f5973fc150a8a63d5b">dobryant</a>(res.<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>()));</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  }</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">if</span> (<a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a46b2792a5c24f95ccfc3fbfc0456b09f">getFlags</a>()[<span class="stringliteral">"pp-care"</span>].getBool()) {</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(res, <a class="code" href="classCVC3_1_1ExprTransform.html#aafc3b026dbacc81d82b75a45b702b0a4" title="Simplification that avoids stack overflow.">smartSimplify</a>(res.<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>(), cache));</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(res, <a class="code" href="classCVC3_1_1ExprTransform.html#ad18b9697ac34575a40f106e48cfef5b4" title="ITE simplification from Burch paper.">simplifyWithCare</a>(res.<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>()));</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  }</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordtype">int</span> budget = 0;</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#a4228c9a8ee02c424c35bbd4bf3733cb8" title="Budget limit for newPP.">d_budgetLimit</a> = <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a46b2792a5c24f95ccfc3fbfc0456b09f">getFlags</a>()[<span class="stringliteral">"pp-budget"</span>].getInt();</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">while</span> (budget < <a class="code" href="classCVC3_1_1ExprTransform.html#a4228c9a8ee02c424c35bbd4bf3733cb8" title="Budget limit for newPP.">d_budgetLimit</a>) {</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(res, <a class="code" href="classCVC3_1_1ExprTransform.html#aafc3b026dbacc81d82b75a45b702b0a4" title="Simplification that avoids stack overflow.">smartSimplify</a>(res.<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>(), cache));</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> ppRes = <a class="code" href="classCVC3_1_1ExprTransform.html#a10909e40663567172bcbf45bad521055" title="new preprocessing code">newPP</a>(res.<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>(), budget);</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">if</span> (ppRes.<a class="code" href="classCVC3_1_1Theorem.html#a16f074e60b9e076187efb478889d2c47">isRefl</a>()) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(res, ppRes);</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">if</span> (<a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a46b2792a5c24f95ccfc3fbfc0456b09f">getFlags</a>()[<span class="stringliteral">"pp-care"</span>].getBool()) {</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(res, <a class="code" href="classCVC3_1_1ExprTransform.html#aafc3b026dbacc81d82b75a45b702b0a4" title="Simplification that avoids stack overflow.">smartSimplify</a>(res.<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>(), cache));</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(res, <a class="code" href="classCVC3_1_1ExprTransform.html#ad18b9697ac34575a40f106e48cfef5b4" title="ITE simplification from Burch paper.">simplifyWithCare</a>(res.<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>()));</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  }</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  }</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(res, <a class="code" href="classCVC3_1_1ExprTransform.html#aafc3b026dbacc81d82b75a45b702b0a4" title="Simplification that avoids stack overflow.">smartSimplify</a>(res.<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>(), cache));</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="comment">// Make sure this call is last as it cleans up theory core</span></div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(res, <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a052424ef27a5042f6321db9a8d41bf82" title="Call theory-specific preprocess routines.">callTheoryPreprocess</a>(res.<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>()));</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  }</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#aeeb68f961407ee80a9762a95e6998cf2">clearInPP</a>();</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> }</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div>
<div class="line"><a name="l00120"></a><span class="lineno"><a class="code" href="classCVC3_1_1ExprTransform.html#aeb0a695de12cfa208e39f0b5a4bdeb56"> 120</a></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1ExprTransform.html#a39652560061ab1172040113d9dfa25f6">ExprTransform::preprocess</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& thm)</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> {</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#aebbcd4a194e4fdca0bcd16143fb03a75">iffMP</a>(thm, <a class="code" href="classCVC3_1_1ExprTransform.html#a39652560061ab1172040113d9dfa25f6">preprocess</a>(thm.<a class="code" href="classCVC3_1_1Theorem.html#af2b97ae5d270ddf1013bf4f3867a7e5d">getExpr</a>()));</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> }</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </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="comment">// We assume that the cache is initially empty</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"><a class="code" href="classCVC3_1_1ExprTransform.html#ab2757afee881751f99c86499400aef44"> 127</a></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1ExprTransform.html#ab2757afee881751f99c86499400aef44" title="Push all negations down to the leaves.">ExprTransform::pushNegation</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="keywordflow">if</span>(e.<a class="code" href="group__ExprPkg.html#gad527acb49daef3591b78c748746e7eef" title="Test if e is a term (as opposed to a predicate/formula)">isTerm</a>()) <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a61c1fe56b4ed9744006883a7784ddb71">reflexivityRule</a>(e);</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> res(<a class="code" href="classCVC3_1_1ExprTransform.html#a8a34a76b702e026c8285f18893da7dbd" title="Auxiliary recursive function for pushNegation().">pushNegationRec</a>(e, <span class="keyword">false</span>));</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#a986331240196633d2d639867eb2b2850" title="Cache for pushNegation()">d_pushNegCache</a>.<a class="code" href="classCVC3_1_1ExprMap.html#a173c2cf4753189d956073d74c36c7c58">clear</a>();</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> }</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </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="comment">// Recursively descend into the expression e, keeping track of whether</span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="comment">// we are under even or odd number of negations ('neg' == true means</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment">// odd, the context is "negative").</span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment">// Produce a proof of e <==> e' or !e <==> e', depending on whether</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment">// neg is false or true, respectively.</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"><a class="code" href="classCVC3_1_1ExprTransform.html#a8a34a76b702e026c8285f18893da7dbd"> 141</a></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1ExprTransform.html#a8a34a76b702e026c8285f18893da7dbd" title="Auxiliary recursive function for pushNegation().">ExprTransform::pushNegationRec</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">bool</span> neg) {</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba7fa27e82c6c4f69434225ed81e5d151e">TRACE</a>(<span class="stringliteral">"pushNegation"</span>, <span class="stringliteral">"pushNegationRec("</span>, e,</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="stringliteral">", neg="</span> + <span class="keywordtype">string</span>(neg? <span class="stringliteral">"true"</span>:<span class="stringliteral">"false"</span>) + <span class="stringliteral">") {"</span>);</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(!e.<a class="code" href="group__ExprPkg.html#gad527acb49daef3591b78c748746e7eef" title="Test if e is a term (as opposed to a predicate/formula)">isTerm</a>(), <span class="stringliteral">"pushNegationRec: not boolean e = "</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="l00145"></a><span class="lineno"> 145</span>  <a class="code" href="classCVC3_1_1ExprMap.html">ExprMap<Theorem>::iterator</a> i = <a class="code" href="classCVC3_1_1ExprTransform.html#a986331240196633d2d639867eb2b2850" title="Cache for pushNegation()">d_pushNegCache</a>.<a class="code" href="classCVC3_1_1ExprMap.html#ae50ab1874dd63b575553e7db769abe28">find</a>(neg? !e : e);</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">if</span>(i != <a class="code" href="classCVC3_1_1ExprTransform.html#a986331240196633d2d639867eb2b2850" title="Cache for pushNegation()">d_pushNegCache</a>.<a class="code" href="classCVC3_1_1ExprMap.html#a283ae6c44308cbdda0d82da5a16e52c8">end</a>()) { <span class="comment">// Found cached result</span></div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba7fa27e82c6c4f69434225ed81e5d151e">TRACE</a>(<span class="stringliteral">"pushNegation"</span>, <span class="stringliteral">"pushNegationRec [cached] => "</span>, (*i).second, <span class="stringliteral">"}"</span>);</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">return</span> (*i).second;</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  }</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// By default, do not rewrite</span></div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> res(<a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1Theory.html#af860f5d5e01423628c97c399606916ff" title="==> a == a">reflexivityRule</a>((neg)? !e : e));</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">if</span>(neg) {</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">switch</span>(e.getKind()) {</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba1fad76919fba496de21807e2beec533d">TRUE_EXPR</a>: res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#ad55b11590196fbd73d24daa1d0d6eeb1" title="==> NOT TRUE IFF FALSE">rewriteNotTrue</a>(!e); <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba5f71bd33a6528411ae681f5291de1d82">FALSE_EXPR</a>: res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a30fa79637f4308e8e733015624293775" title="==> NOT FALSE IFF TRUE">rewriteNotFalse</a>(!e); <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba0378ebc895849163b249d0b330257dd6">NOT</a>: </div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#a8a34a76b702e026c8285f18893da7dbd" title="Auxiliary recursive function for pushNegation().">pushNegationRec</a>(<a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a8a04ff29591a019d4d4cf073c0987316" title="==> NOT NOT e IFF e, takes !!e">rewriteNotNot</a>(!e), <span class="keyword">false</span>);</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba865555c9f2e0458a7078486aa1b3254f">AND</a>:</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#a8a34a76b702e026c8285f18893da7dbd" title="Auxiliary recursive function for pushNegation().">pushNegationRec</a>(<a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#ade3007866410b6565ee0ea1ff4c49a99" title="==> NOT (AND e1 ... en) IFF (OR !e1 ... !en), takes (AND ...)">rewriteNotAnd</a>(!e), <span class="keyword">false</span>);</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba96727447c0ad447987df1c6415aef074">OR</a>: </div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#a8a34a76b702e026c8285f18893da7dbd" title="Auxiliary recursive function for pushNegation().">pushNegationRec</a>(<a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#aea875ee7355ae6aab01b84c176dbccf6" title="==> NOT (OR e1 ... en) IFF (AND !e1 ... !en), takes (OR ...)">rewriteNotOr</a>(!e), <span class="keyword">false</span>);</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba7338bb59b9aa936104a6d2f631d4d8db">IMPLIES</a>: {</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  vector<Theorem> thms;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  thms.push_back(<a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#a3389cd795acc4cee4b591c1488293963" title="==> IMPLIES(e1,e2) IFF OR(!e1, e2)">rewriteImplies</a>(e));</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#a8a34a76b702e026c8285f18893da7dbd" title="Auxiliary recursive function for pushNegation().">pushNegationRec</a></div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  (<a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a776c827bb6e3b889234429c49ae9ad6f" title="Optimized case for expr with one child.">substitutivityRule</a>(<a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba0378ebc895849163b249d0b330257dd6">NOT</a>, thms), <span class="keyword">true</span>);</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  }</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="comment">// case IFF:</span></div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="comment">// // Preserve equivalences to explore structural similarities</span></div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="comment">// if(e[0].getKind() == e[1].getKind())</span></div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment">// res = d_commonRules->reflexivityRule(!e);</span></div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment">// else</span></div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment">// res = pushNegationRec(d_commonRules->rewriteNotIff(!e), false);</span></div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment">// break;</span></div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba3a4cfaf3eae8eac1dc2fd27d9f0994dc">ITE</a>:</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#a8a34a76b702e026c8285f18893da7dbd" title="Auxiliary recursive function for pushNegation().">pushNegationRec</a>(<a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#ac68942cf0c21011f9429042e279b4a54" title="==> NOT ITE(a,b,c) IFF ITE(a,NOT b,NOT c)">rewriteNotIte</a>(!e), <span class="keyword">false</span>);</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="comment">// Replace LETDECL with its definition. The</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="comment">// typechecker makes sure it's type-safe to do so.</span></div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba9508dd8c8e7db280a5dacc19bd74d92d">LETDECL</a>: {</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  vector<Theorem> thms;</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  thms.push_back(<a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#acad687c3e6faa5709961210637c260da" title="Replace LETDECL with its definition.">rewriteLetDecl</a>(e));</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#a8a34a76b702e026c8285f18893da7dbd" title="Auxiliary recursive function for pushNegation().">pushNegationRec</a></div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  (<a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a776c827bb6e3b889234429c49ae9ad6f" title="Optimized case for expr with one child.">substitutivityRule</a>(<a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba0378ebc895849163b249d0b330257dd6">NOT</a>, thms), <span class="keyword">true</span>);</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  }</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a61c1fe56b4ed9744006883a7784ddb71">reflexivityRule</a>(!e);</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  } <span class="comment">// end of switch(e.getKind())</span></div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  } <span class="keywordflow">else</span> { <span class="comment">// if(!neg)</span></div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">switch</span>(e.getKind()) {</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba0378ebc895849163b249d0b330257dd6">NOT</a>: res = <a class="code" href="classCVC3_1_1ExprTransform.html#a8a34a76b702e026c8285f18893da7dbd" title="Auxiliary recursive function for pushNegation().">pushNegationRec</a>(e[0], <span class="keyword">true</span>); <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba865555c9f2e0458a7078486aa1b3254f">AND</a>:</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba96727447c0ad447987df1c6415aef074">OR</a>:</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba527cb185631442655c4486d51522b5a7">IFF</a>:</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba3a4cfaf3eae8eac1dc2fd27d9f0994dc">ITE</a>: {</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <a class="code" href="classCVC3_1_1Op.html">Op</a> op = e.getOp();</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  vector<Theorem> thms;</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordflow">for</span>(<a class="code" href="classCVC3_1_1Expr_1_1iterator.html">Expr::iterator</a> i=e.begin(), iend=e.end(); i!=iend; ++i)</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  thms.push_back(<a class="code" href="classCVC3_1_1ExprTransform.html#a8a34a76b702e026c8285f18893da7dbd" title="Auxiliary recursive function for pushNegation().">pushNegationRec</a>(*i, <span class="keyword">false</span>));</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">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="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">break</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="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba7338bb59b9aa936104a6d2f631d4d8db">IMPLIES</a>:</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#a8a34a76b702e026c8285f18893da7dbd" title="Auxiliary recursive function for pushNegation().">pushNegationRec</a>(<a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#a3389cd795acc4cee4b591c1488293963" title="==> IMPLIES(e1,e2) IFF OR(!e1, e2)">rewriteImplies</a>(e), <span class="keyword">false</span>);</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba9508dd8c8e7db280a5dacc19bd74d92d">LETDECL</a>:</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#a8a34a76b702e026c8285f18893da7dbd" title="Auxiliary recursive function for pushNegation().">pushNegationRec</a>(<a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#acad687c3e6faa5709961210637c260da" title="Replace LETDECL with its definition.">rewriteLetDecl</a>(e), <span class="keyword">false</span>);</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a61c1fe56b4ed9744006883a7784ddb71">reflexivityRule</a>(e);</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  } <span class="comment">// end of switch(e.getKind())</span></div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  }</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba7fa27e82c6c4f69434225ed81e5d151e">TRACE</a>(<span class="stringliteral">"pushNegation"</span>, <span class="stringliteral">"pushNegationRec => "</span>, res, <span class="stringliteral">"}"</span>);</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#a986331240196633d2d639867eb2b2850" title="Cache for pushNegation()">d_pushNegCache</a>[neg? !e : e] = res;</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> }</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div>
<div class="line"><a name="l00225"></a><span class="lineno"><a class="code" href="classCVC3_1_1ExprTransform.html#aa247d13841a682165edb357895d78aa3"> 225</a></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1ExprTransform.html#a8a34a76b702e026c8285f18893da7dbd" title="Auxiliary recursive function for pushNegation().">ExprTransform::pushNegationRec</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& thm, <span class="keywordtype">bool</span> neg) {</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(thm.<a class="code" href="classCVC3_1_1Theorem.html#a362c1d70e03803d804bbe300e5f6dc87">isRewrite</a>(), <span class="stringliteral">"pushNegationRec(Theorem): bad theorem: "</span></div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  + thm.<a class="code" href="classCVC3_1_1Theorem.html#ac4b1c9570ffb9cc901627ef2abb9ff77">toString</a>());</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> e(thm.<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>());</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordflow">if</span>(neg) {</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(e.isNot(), </div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="stringliteral">"pushNegationRec(Theorem, neg = true): bad Theorem: "</span></div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  + thm.<a class="code" href="classCVC3_1_1Theorem.html#ac4b1c9570ffb9cc901627ef2abb9ff77">toString</a>());</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  e = e[0];</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  }</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(thm, <a class="code" href="classCVC3_1_1ExprTransform.html#a8a34a76b702e026c8285f18893da7dbd" title="Auxiliary recursive function for pushNegation().">pushNegationRec</a>(e, neg));</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> }</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> </div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div>
<div class="line"><a name="l00239"></a><span class="lineno"><a class="code" href="classCVC3_1_1ExprTransform.html#a5daaef4e405ec8c9bb7f6e6adbde27fa"> 239</a></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1ExprTransform.html#a5daaef4e405ec8c9bb7f6e6adbde27fa" title="Push negation one level down. Takes 'e' which is 'NOT e[0]'.">ExprTransform::pushNegation1</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="l00240"></a><span class="lineno"> 240</span>  <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba7fa27e82c6c4f69434225ed81e5d151e">TRACE</a>(<span class="stringliteral">"pushNegation1"</span>, <span class="stringliteral">"pushNegation1("</span>, e, <span class="stringliteral">") {"</span>);</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(e.<a class="code" href="group__ExprPkg.html#ga1a898858ccadce833df5a294c7740f11">isNot</a>(), <span class="stringliteral">"pushNegation1("</span>+e.<a class="code" href="group__ExprPkg.html#gaf3028bb1619f8cc69b66ec712e1adb54" title="Print the expression to a string.">toString</a>()+<span class="stringliteral">")"</span>);</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> res;</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keywordflow">switch</span>(e[0].getKind()) {</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba1fad76919fba496de21807e2beec533d">TRUE_EXPR</a>: res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#ad55b11590196fbd73d24daa1d0d6eeb1" title="==> NOT TRUE IFF FALSE">rewriteNotTrue</a>(e); <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba5f71bd33a6528411ae681f5291de1d82">FALSE_EXPR</a>: res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a30fa79637f4308e8e733015624293775" title="==> NOT FALSE IFF TRUE">rewriteNotFalse</a>(e); <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba0378ebc895849163b249d0b330257dd6">NOT</a>: </div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a8a04ff29591a019d4d4cf073c0987316" title="==> NOT NOT e IFF e, takes !!e">rewriteNotNot</a>(e);</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba865555c9f2e0458a7078486aa1b3254f">AND</a>:</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#ade3007866410b6565ee0ea1ff4c49a99" title="==> NOT (AND e1 ... en) IFF (OR !e1 ... !en), takes (AND ...)">rewriteNotAnd</a>(e);</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba96727447c0ad447987df1c6415aef074">OR</a>: </div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#aea875ee7355ae6aab01b84c176dbccf6" title="==> NOT (OR e1 ... en) IFF (AND !e1 ... !en), takes (OR ...)">rewriteNotOr</a>(e);</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba7338bb59b9aa936104a6d2f631d4d8db">IMPLIES</a>: {</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  vector<Theorem> thms;</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  thms.push_back(<a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#a3389cd795acc4cee4b591c1488293963" title="==> IMPLIES(e1,e2) IFF OR(!e1, e2)">rewriteImplies</a>(e[0]));</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a776c827bb6e3b889234429c49ae9ad6f" title="Optimized case for expr with one child.">substitutivityRule</a>(e.<a class="code" href="group__ExprPkg.html#gace479f04faca399219496195152f7806" title="Get operator from expression.">getOp</a>(), thms);</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(res, <a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#aea875ee7355ae6aab01b84c176dbccf6" title="==> NOT (OR e1 ... en) IFF (AND !e1 ... !en), takes (OR ...)">rewriteNotOr</a>(res.getRHS()));</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  }</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba3a4cfaf3eae8eac1dc2fd27d9f0994dc">ITE</a>:</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#ac68942cf0c21011f9429042e279b4a54" title="==> NOT ITE(a,b,c) IFF ITE(a,NOT b,NOT c)">rewriteNotIte</a>(e);</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="comment">// Replace LETDECL with its definition. The</span></div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="comment">// typechecker makes sure it's type-safe to do so.</span></div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba9508dd8c8e7db280a5dacc19bd74d92d">LETDECL</a>: {</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  vector<Theorem> thms;</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  thms.push_back(<a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#acad687c3e6faa5709961210637c260da" title="Replace LETDECL with its definition.">rewriteLetDecl</a>(e[0]));</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a776c827bb6e3b889234429c49ae9ad6f" title="Optimized case for expr with one child.">substitutivityRule</a>(e.<a class="code" href="group__ExprPkg.html#gace479f04faca399219496195152f7806" title="Get operator from expression.">getOp</a>(), thms);</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(res, <a class="code" href="classCVC3_1_1ExprTransform.html#a5daaef4e405ec8c9bb7f6e6adbde27fa" title="Push negation one level down. Takes 'e' which is 'NOT e[0]'.">pushNegation1</a>(res.getRHS()));</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  }</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a61c1fe56b4ed9744006883a7784ddb71">reflexivityRule</a>(e);</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  }</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba7fa27e82c6c4f69434225ed81e5d151e">TRACE</a>(<span class="stringliteral">"pushNegation1"</span>, <span class="stringliteral">"pushNegation1 => "</span>, res.getExpr(), <span class="stringliteral">" }"</span>);</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keywordflow">return</span> res;</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"> 281</span> </div>
<div class="line"><a name="l00282"></a><span class="lineno"><a class="code" href="classCVC3_1_1ExprTransform.html#a10909e40663567172bcbf45bad521055"> 282</a></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1ExprTransform.html#a10909e40663567172bcbf45bad521055" title="new preprocessing code">ExprTransform::newPP</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>& budget)</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span> {</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordflow">if</span> (!e.<a class="code" href="group__ExprPkg.html#ga42929221eb172250697b72c28af6de07" title="Get the type. Recursively compute if necessary.">getType</a>().<a class="code" href="classCVC3_1_1Type.html#a38bba404056eadf3c283a67ab2347e02">isBool</a>()) <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a61c1fe56b4ed9744006883a7784ddb71">reflexivityRule</a>(e);</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#a574575f8c65c604d6904c4654f2e48d6" title="Cache for newPP.">d_newPPCache</a>.<a class="code" href="classCVC3_1_1ExprMap.html#a173c2cf4753189d956073d74c36c7c58">clear</a>();</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> thm = <a class="code" href="classCVC3_1_1ExprTransform.html#a5817a5d8a33b01904fa7e06aa91061bb" title="main new preprocessing code">newPPrec</a>(e, budget);</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="comment">// cout << "budget = " << budget << endl;</span></div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keywordflow">if</span> (budget > <a class="code" href="classCVC3_1_1ExprTransform.html#a4228c9a8ee02c424c35bbd4bf3733cb8" title="Budget limit for newPP.">d_budgetLimit</a> ||</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  thm.<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>().<a class="code" href="group__ExprPkg.html#gad2f1fb7c447bcc3a7d352fd24a8f265a">getSize</a>() > 2 * e.<a class="code" href="group__ExprPkg.html#gad2f1fb7c447bcc3a7d352fd24a8f265a">getSize</a>()) {</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a61c1fe56b4ed9744006883a7784ddb71">reflexivityRule</a>(e);</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  }</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordflow">return</span> thm;</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span> }</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> </div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> </div>
<div class="line"><a name="l00296"></a><span class="lineno"><a class="code" href="classCVC3_1_1ExprTransform.html#ac16db941bec1cf4ecb888a8fc3f1a0e9"> 296</a></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1ExprTransform.html#ac16db941bec1cf4ecb888a8fc3f1a0e9" title="Helper for newPP.">ExprTransform::specialSimplify</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e, <a class="code" href="classCVC3_1_1ExprHashMap.html">ExprHashMap<Theorem></a>& cache)</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> {</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keywordflow">if</span> (e.<a class="code" href="group__ExprPkg.html#ga48a9219339b394280550069ac7b0474f" title="Test if e is atomic.">isAtomic</a>()) <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a61c1fe56b4ed9744006883a7784ddb71">reflexivityRule</a>(e);</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span> </div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <a class="code" href="classCVC3_1_1ExprHashMap.html">ExprHashMap<Theorem>::iterator</a> it = cache.<a class="code" href="classCVC3_1_1ExprHashMap.html#aeffd58f05fbeb8f381ba2050adef7a2d">find</a>(e);</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keywordflow">if</span> (it != cache.<a class="code" href="classCVC3_1_1ExprHashMap.html#a0ea2aa250fd1431c311d83f32862bba7">end</a>()) <span class="keywordflow">return</span> (*it).second;</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> </div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> thm;</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  if (e.<a class="code" href="group__ExprPkg.html#ga42929221eb172250697b72c28af6de07" title="Get the type. Recursively compute if necessary.">getType</a>().<a class="code" href="classCVC3_1_1Type.html#a38bba404056eadf3c283a67ab2347e02">isBool</a>()) {</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  thm = <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a8a66da5ca687474a3a725448a3be8c41" title="Top-level simplifier.">simplify</a>(e);</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="keywordflow">if</span> (thm.getRHS().isBoolConst()) {</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  cache[e] = thm;</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keywordflow">return</span> thm;</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  }</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  }</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> </div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  thm = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a61c1fe56b4ed9744006883a7784ddb71">reflexivityRule</a>(e);</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  vector<Theorem> newChildrenThm;</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  vector<unsigned> changed;</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keywordtype">int</span> ar = e.<a class="code" href="group__ExprPkg.html#ga28b901d05e52a5c646f83a95cc74f94b">arity</a>();</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keywordflow">for</span>(<span class="keywordtype">int</span> k = 0; k < ar; ++k) {</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="comment">// Recursively process the kids</span></div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> thm2 = <a class="code" href="classCVC3_1_1ExprTransform.html#ac16db941bec1cf4ecb888a8fc3f1a0e9" title="Helper for newPP.">specialSimplify</a>(e[k], cache);</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keywordflow">if</span> (!thm2.<a class="code" href="classCVC3_1_1Theorem.html#a16f074e60b9e076187efb478889d2c47">isRefl</a>()) {</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  newChildrenThm.push_back(thm2);</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  changed.push_back(k);</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>  }</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="keywordflow">if</span>(changed.size() > 0) {</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  thm = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a776c827bb6e3b889234429c49ae9ad6f" title="Optimized case for expr with one child.">substitutivityRule</a>(e, changed, newChildrenThm);</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  }</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>  cache[e] = thm;</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keywordflow">return</span> thm;</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span> }</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span> </div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span> </div>
<div class="line"><a name="l00334"></a><span class="lineno"><a class="code" href="classCVC3_1_1ExprTransform.html#a5817a5d8a33b01904fa7e06aa91061bb"> 334</a></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1ExprTransform.html#a5817a5d8a33b01904fa7e06aa91061bb" title="main new preprocessing code">ExprTransform::newPPrec</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>& budget)</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>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(e.<a class="code" href="group__ExprPkg.html#ga42929221eb172250697b72c28af6de07" title="Get the type. Recursively compute if necessary.">getType</a>().<a class="code" href="classCVC3_1_1Type.html#a38bba404056eadf3c283a67ab2347e02">isBool</a>(), <span class="stringliteral">"Expected Boolean expression"</span>);</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a61c1fe56b4ed9744006883a7784ddb71">reflexivityRule</a>(e);</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> </div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="keywordflow">if</span> (!e.<a class="code" href="group__ExprPkg.html#gaf53e6a6f9dc01481d2cf94673c5505ce" title="Return whether Expr contains a non-bool type ITE as a sub-term.">containsTermITE</a>()) <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> </div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <a class="code" href="classCVC3_1_1ExprMap.html">ExprMap<Theorem>::iterator</a> i = <a class="code" href="classCVC3_1_1ExprTransform.html#a574575f8c65c604d6904c4654f2e48d6" title="Cache for newPP.">d_newPPCache</a>.<a class="code" href="classCVC3_1_1ExprMap.html#ae50ab1874dd63b575553e7db769abe28">find</a>(e);</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keywordflow">if</span> (i != <a class="code" href="classCVC3_1_1ExprTransform.html#a574575f8c65c604d6904c4654f2e48d6" title="Cache for newPP.">d_newPPCache</a>.<a class="code" href="classCVC3_1_1ExprMap.html#a283ae6c44308cbdda0d82da5a16e52c8">end</a>()) { <span class="comment">// Found cached result</span></div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  res = (*i).second;</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  }</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span> </div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> current = e;</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> newExpr;</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> thm, thm2;</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span> </div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="keywordflow">do</span> {</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="keywordflow">if</span> (budget > <a class="code" href="classCVC3_1_1ExprTransform.html#a4228c9a8ee02c424c35bbd4bf3733cb8" title="Budget limit for newPP.">d_budgetLimit</a>) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> </div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  ++budget;</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="comment">// Recursive case</span></div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordflow">if</span> (!current.<a class="code" href="group__ExprPkg.html#gad8c63abfec9cc4a8319f3df1b47eee45" title="True iff expr is not a Bool connective.">isPropAtom</a>()) {</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  vector<Theorem> newChildrenThm;</div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  vector<unsigned> changed;</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keywordtype">int</span> ar = current.<a class="code" href="group__ExprPkg.html#ga28b901d05e52a5c646f83a95cc74f94b">arity</a>();</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keywordflow">for</span>(<span class="keywordtype">int</span> k = 0; k < ar; ++k) {</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="comment">// Recursively process the kids</span></div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  thm = <a class="code" href="classCVC3_1_1ExprTransform.html#a5817a5d8a33b01904fa7e06aa91061bb" title="main new preprocessing code">newPPrec</a>(current[k], budget);</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="keywordflow">if</span> (!thm.<a class="code" href="classCVC3_1_1Theorem.html#a16f074e60b9e076187efb478889d2c47">isRefl</a>()) {</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  newChildrenThm.push_back(thm);</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  changed.push_back(k);</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>  }</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordflow">if</span>(changed.size() > 0) {</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  thm = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(res, <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a776c827bb6e3b889234429c49ae9ad6f" title="Optimized case for expr with one child.">substitutivityRule</a>(current, changed, newChildrenThm));</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  newExpr = thm.<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>();</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  res = thm;</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  }</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="keywordflow">break</span>;</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> </div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span> <span class="comment">// if (current.getSize() > 1000) {</span></div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span> <span class="comment">// break;</span></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> </div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="comment">// Contains Term ITEs</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>  thm = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(res, <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a893a258d9f7d49acb5c8a8b5b8ec39b0">liftOneITE</a>(current));</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  newExpr = thm.<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>();</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span> </div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordflow">if</span> ((newExpr[0].isLiteral() || newExpr[0].isAnd())) {</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a9377f423f4fd59fdac396794363733a6">getCM</a>()-><a class="code" href="classCVC3_1_1ContextManager.html#a90e301927cc935d561b81761d4ab2ee8">push</a>();</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#aecef2465eb761f7f112ddce77f93d081" title="Add a new assertion to the core from the user or a SAT solver. Do NOT use it in a decision procedure;...">addFact</a>(<a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#ab4527c48e9f88d94d7ca076757a6f3ba">assumpRule</a>(newExpr[0]));</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  thm2 = <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a8a66da5ca687474a3a725448a3be8c41" title="Top-level simplifier.">simplify</a>(newExpr[1]);</div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  thm = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(thm, <a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#a8117a95eed02c35936f988d1c9c2bdab" title="a |- b == d ==> ITE(a, b, c) == ITE(a, d, c)">rewriteIteThen</a>(newExpr, thm2));</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a9377f423f4fd59fdac396794363733a6">getCM</a>()-><a class="code" href="classCVC3_1_1ContextManager.html#ae74b114a270baff44940a8916d958e9c">pop</a>();</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>  <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a9377f423f4fd59fdac396794363733a6">getCM</a>()-><a class="code" href="classCVC3_1_1ContextManager.html#a90e301927cc935d561b81761d4ab2ee8">push</a>();</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#aecef2465eb761f7f112ddce77f93d081" title="Add a new assertion to the core from the user or a SAT solver. Do NOT use it in a decision procedure;...">addFact</a>(<a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#ab4527c48e9f88d94d7ca076757a6f3ba">assumpRule</a>(newExpr[0].<a class="code" href="group__ExprPkg.html#gab1ce461dc931af73bf04e88c8d37dcbc">negate</a>()));</div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span> </div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  thm2 = <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a8a66da5ca687474a3a725448a3be8c41" title="Top-level simplifier.">simplify</a>(newExpr[2]);</div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  newExpr = thm.<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>();</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  thm = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(thm, <a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#a7912f66f5be7e05b0c85f15596747be4" title="!a |- c == d ==> ITE(a, b, c) == ITE(a, b, d)">rewriteIteElse</a>(newExpr, thm2));</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a9377f423f4fd59fdac396794363733a6">getCM</a>()-><a class="code" href="classCVC3_1_1ContextManager.html#ae74b114a270baff44940a8916d958e9c">pop</a>();</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  newExpr = thm.<a class="code" href="classCVC3_1_1Theorem.html#a97d957fcbf9094480851b1d2e5d3729f">getRHS</a>();</div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  }</div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  res = thm;</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  current = newExpr;</div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span> </div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  } <span class="keywordflow">while</span> (current.<a class="code" href="group__ExprPkg.html#gaf53e6a6f9dc01481d2cf94673c5505ce" title="Return whether Expr contains a non-bool type ITE as a sub-term.">containsTermITE</a>());</div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span> </div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#a574575f8c65c604d6904c4654f2e48d6" title="Cache for newPP.">d_newPPCache</a>[e] = res;</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  </div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span> }</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span> </div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span> </div>
<div class="line"><a name="l00413"></a><span class="lineno"><a class="code" href="classCVC3_1_1ExprTransform.html#ad12aee56d7dd01276af2d993ce4676c9"> 413</a></span> <span class="keywordtype">void</span> <a class="code" href="classCVC3_1_1ExprTransform.html#ad12aee56d7dd01276af2d993ce4676c9" title="Helper for simplifyWithCare.">ExprTransform::updateQueue</a>(<a class="code" href="classCVC3_1_1ExprMap.html">ExprMap</a><set<Expr>* >& queue,</div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <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="l00415"></a><span class="lineno"> 415</span>  <span class="keyword">const</span> set<Expr>& careSet)</div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span> {</div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <a class="code" href="classCVC3_1_1ExprMap.html">ExprMap<set<Expr></a>* >::iterator it = queue.<a class="code" href="classCVC3_1_1ExprMap.html#ae50ab1874dd63b575553e7db769abe28">find</a>(e), iend = queue.end();</div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span> </div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keywordflow">if</span> (it != iend) {</div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span> </div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  set<Expr>* cs2 = (*it).second;</div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  set<Expr>* csNew = <span class="keyword">new</span> set<Expr>;</div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  set_intersection(careSet.begin(), careSet.end(), cs2->begin(), cs2->end(),</div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  inserter(*csNew, csNew->begin()));</div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  (*it).second = csNew;</div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="keyword">delete</span> cs2;</div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  }</div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  queue[e] = <span class="keyword">new</span> set<Expr>(careSet);</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  }</div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span> }</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span> </div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span> </div>
<div class="line"><a name="l00434"></a><span class="lineno"><a class="code" href="classCVC3_1_1ExprTransform.html#ae1f3a46b2e09495bb5afe3ac46f23c2b"> 434</a></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1ExprTransform.html#ae1f3a46b2e09495bb5afe3ac46f23c2b" title="Helper for simplifyWithCare.">ExprTransform::substitute</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="l00435"></a><span class="lineno"> 435</span>  <a class="code" href="classCVC3_1_1ExprHashMap.html">ExprHashMap<Theorem></a>& substTable,</div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <a class="code" href="classCVC3_1_1ExprHashMap.html">ExprHashMap<Theorem></a>& cache)</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="keywordflow">if</span> (e.<a class="code" href="group__ExprPkg.html#ga48a9219339b394280550069ac7b0474f" title="Test if e is atomic.">isAtomic</a>()) <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a61c1fe56b4ed9744006883a7784ddb71">reflexivityRule</a>(e);</div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span> </div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="comment">// check cache</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"> 442</span>  <a class="code" href="classCVC3_1_1ExprHashMap.html">ExprHashMap<Theorem>::iterator</a> it = cache.<a class="code" href="classCVC3_1_1ExprHashMap.html#aeffd58f05fbeb8f381ba2050adef7a2d">find</a>(e), iend = cache.<a class="code" href="classCVC3_1_1ExprHashMap.html#a0ea2aa250fd1431c311d83f32862bba7">end</a>();</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordflow">if</span> (it != iend) {</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="keywordflow">return</span> it->second;</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>  <span class="comment">// do substitution?</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>  it = substTable.<a class="code" href="classCVC3_1_1ExprHashMap.html#aeffd58f05fbeb8f381ba2050adef7a2d">find</a>(e);</div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  iend = substTable.<a class="code" href="classCVC3_1_1ExprHashMap.html#a0ea2aa250fd1431c311d83f32862bba7">end</a>();</div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="keywordflow">if</span> (it != iend) {</div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(it->second, <a class="code" href="classCVC3_1_1ExprTransform.html#ae1f3a46b2e09495bb5afe3ac46f23c2b" title="Helper for simplifyWithCare.">substitute</a>(it->second.getRHS(), substTable, cache));</div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  }</div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span> </div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a61c1fe56b4ed9744006883a7784ddb71">reflexivityRule</a>(e);</div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="keywordtype">int</span> ar = e.<a class="code" href="group__ExprPkg.html#ga28b901d05e52a5c646f83a95cc74f94b">arity</a>();</div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="keywordflow">if</span> (ar > 0) {</div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  vector<Theorem> newChildrenThm;</div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  vector<unsigned> changed;</div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="keywordflow">for</span>(<span class="keywordtype">int</span> k = 0; k < ar; ++k) {</div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> thm = <a class="code" href="classCVC3_1_1ExprTransform.html#ae1f3a46b2e09495bb5afe3ac46f23c2b" title="Helper for simplifyWithCare.">substitute</a>(e[k], substTable, cache);</div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  <span class="keywordflow">if</span> (!thm.<a class="code" href="classCVC3_1_1Theorem.html#a16f074e60b9e076187efb478889d2c47">isRefl</a>()) {</div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  newChildrenThm.push_back(thm);</div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  changed.push_back(k);</div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  }</div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  }</div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  <span class="keywordflow">if</span>(changed.size() > 0) {</div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  res = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a776c827bb6e3b889234429c49ae9ad6f" title="Optimized case for expr with one child.">substitutivityRule</a>(e, changed, newChildrenThm);</div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  }</div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  }</div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  cache[e] = res;</div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span> }</div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span> </div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span> </div>
<div class="line"><a name="l00476"></a><span class="lineno"><a class="code" href="classCVC3_1_1ExprTransform.html#ad18b9697ac34575a40f106e48cfef5b4"> 476</a></span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> <a class="code" href="classCVC3_1_1ExprTransform.html#ad18b9697ac34575a40f106e48cfef5b4" title="ITE simplification from Burch paper.">ExprTransform::simplifyWithCare</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="l00477"></a><span class="lineno"> 477</span> {</div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <a class="code" href="classCVC3_1_1ExprHashMap.html">ExprHashMap<Theorem></a> substTable;</div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  <a class="code" href="classCVC3_1_1ExprMap.html">ExprMap<set<Expr></a>* > queue;</div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <a class="code" href="classCVC3_1_1ExprMap.html">ExprMap<set<Expr></a>* >::iterator it;</div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  set<Expr> cs;</div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#ad12aee56d7dd01276af2d993ce4676c9" title="Helper for simplifyWithCare.">updateQueue</a>(queue, e, cs);</div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span> </div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> v;</div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  <span class="keywordtype">bool</span> done;</div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> thm;</div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  <span class="keywordtype">int</span> i;</div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span> </div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  <span class="keywordflow">while</span> (!queue.<a class="code" href="classCVC3_1_1ExprMap.html#a292270a9283cbdcfd5a3ddccd4e33262">empty</a>()) {</div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  it = queue.<a class="code" href="classCVC3_1_1ExprMap.html#a283ae6c44308cbdda0d82da5a16e52c8">end</a>();</div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  --it;</div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  v = it->first;</div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  cs = *(it->second);</div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  <span class="keyword">delete</span> it->second;</div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  queue.<a class="code" href="classCVC3_1_1ExprMap.html#a2997aa3f20d09f6bf49b09da9a177003">erase</a>(v);</div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span> </div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="keywordflow">if</span> (v.<a class="code" href="group__ExprPkg.html#ga48a9219339b394280550069ac7b0474f" title="Test if e is atomic.">isAtomic</a>() || v.<a class="code" href="group__ExprPkg.html#ga4b575e0a191cc42706ff5b5a169c3069" title="Test if e is an atomic formula.">isAtomicFormula</a>()) {</div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span> </div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span> <span class="comment">// Unfortunately, this can lead to incompleteness bugs</span></div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span> </div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span> <span class="comment">// d_core->getCM()->push();</span></div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span> <span class="comment">// set<Expr>::iterator iCare = cs.begin(), iCareEnd = cs.end();</span></div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span> <span class="comment">// for (; iCare != iCareEnd; ++iCare) {</span></div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span> <span class="comment">// d_core->addFact(d_commonRules->assumpRule((*iCare)));</span></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">// thm = d_core->simplify(v);</span></div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span> <span class="comment">// if (!thm.isRefl()) {</span></div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span> <span class="comment">// substTable[v] = d_rules->dummyTheorem(thm.getExpr());</span></div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span> <span class="comment">// }</span></div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span> <span class="comment">// d_core->getCM()->pop();</span></div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  }</div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span> </div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <span class="keywordflow">if</span> (<span class="keyword">false</span> && v.<a class="code" href="group__ExprPkg.html#gad8c63abfec9cc4a8319f3df1b47eee45" title="True iff expr is not a Bool connective.">isPropAtom</a>() && <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1Theory.html#a01fa8047ed1f649dc98831cb536187e4" title="Return the theory associated with a kind.">theoryOf</a>(v) == <a class="code" href="classCVC3_1_1ExprTransform.html#a741b9541234b906a8b74845e4c4d3c51">d_theoryArith</a> &&</div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#a741b9541234b906a8b74845e4c4d3c51">d_theoryArith</a>-><a class="code" href="classCVC3_1_1TheoryArith.html#adcdf01dd1e0f78760fefc2a82b604098">leavesAreNumConst</a>(v)) {</div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> vNew = v;</div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  thm = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a61c1fe56b4ed9744006883a7784ddb71">reflexivityRule</a>(vNew);</div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <span class="keywordflow">while</span> (vNew.<a class="code" href="group__ExprPkg.html#gaf53e6a6f9dc01481d2cf94673c5505ce" title="Return whether Expr contains a non-bool type ITE as a sub-term.">containsTermITE</a>()) {</div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  thm = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(thm, <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a893a258d9f7d49acb5c8a8b5b8ec39b0">liftOneITE</a>(vNew));</div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(!thm.<a class="code" href="classCVC3_1_1Theorem.html#a16f074e60b9e076187efb478889d2c47">isRefl</a>(), <span class="stringliteral">"Expected non-reflexive"</span>);</div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  thm = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(thm, <a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#a03f8a74b8b1b6d90ff23a0a6150c49d6" title="==> ITE(a, b(a), c(a)) IFF ITE(a, b(TRUE), c(FALSE))">rewriteIteCond</a>(thm.getRHS()));</div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  thm = <a class="code" href="classCVC3_1_1ExprTransform.html#aeea6bcb414f95c53d846ad7c684b1a5d">d_commonRules</a>-><a class="code" href="classCVC3_1_1CommonProofRules.html#a4a4e90cd69ce24e83ba2c217907c277a" title=" (same for IFF)">transitivityRule</a>(thm, <a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1TheoryCore.html#a8a66da5ca687474a3a725448a3be8c41" title="Top-level simplifier.">simplify</a>(thm.getRHS()));</div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  vNew = thm.getRHS();</div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  }</div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  substTable[v] = thm;</div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  }</div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span> </div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  done = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  set<Expr>::iterator iCare, iCareEnd = cs.end();</div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span> </div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  <span class="keywordflow">switch</span> (v.<a class="code" href="group__ExprPkg.html#ga7814e4f55f65c7ca860c637413df5f4d">getKind</a>()) {</div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba3a4cfaf3eae8eac1dc2fd27d9f0994dc">ITE</a>: {</div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  iCare = cs.find(v[0]);</div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  <span class="keywordflow">if</span> (iCare != iCareEnd) {</div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> rewrite = v.<a class="code" href="group__ExprPkg.html#ga42929221eb172250697b72c28af6de07" title="Get the type. Recursively compute if necessary.">getType</a>().<a class="code" href="classCVC3_1_1Type.html#a38bba404056eadf3c283a67ab2347e02">isBool</a>() ? v.<a class="code" href="group__ExprPkg.html#gaae017ca8e68af655ba285c985dd9fba5">iffExpr</a>(v[1]) : v.<a class="code" href="group__ExprPkg.html#gacb48495ca445c895f95d0c3c1ae2070b">eqExpr</a>(v[1]);</div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  substTable[v] = <a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#a9592705bbf82393b7f6500fa33ead252" title="Temporary cheat for building theorems.">dummyTheorem</a>(rewrite);</div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#ad12aee56d7dd01276af2d993ce4676c9" title="Helper for simplifyWithCare.">updateQueue</a>(queue, v[1], cs);</div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  done = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  }</div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  iCare = cs.find(v[0].negate());</div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  <span class="keywordflow">if</span> (iCare != iCareEnd) {</div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> rewrite = v.<a class="code" href="group__ExprPkg.html#ga42929221eb172250697b72c28af6de07" title="Get the type. Recursively compute if necessary.">getType</a>().<a class="code" href="classCVC3_1_1Type.html#a38bba404056eadf3c283a67ab2347e02">isBool</a>() ? v.<a class="code" href="group__ExprPkg.html#gaae017ca8e68af655ba285c985dd9fba5">iffExpr</a>(v[2]) : v.<a class="code" href="group__ExprPkg.html#gacb48495ca445c895f95d0c3c1ae2070b">eqExpr</a>(v[2]);</div>
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  substTable[v] = <a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#a9592705bbf82393b7f6500fa33ead252" title="Temporary cheat for building theorems.">dummyTheorem</a>(rewrite);</div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#ad12aee56d7dd01276af2d993ce4676c9" title="Helper for simplifyWithCare.">updateQueue</a>(queue, v[2], cs);</div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  done = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  }</div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  }</div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#ad12aee56d7dd01276af2d993ce4676c9" title="Helper for simplifyWithCare.">updateQueue</a>(queue, v[0], cs);</div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  cs.insert(v[0]);</div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#ad12aee56d7dd01276af2d993ce4676c9" title="Helper for simplifyWithCare.">updateQueue</a>(queue, v[1], cs);</div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  cs.erase(v[0]);</div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  cs.insert(v[0].negate());</div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#ad12aee56d7dd01276af2d993ce4676c9" title="Helper for simplifyWithCare.">updateQueue</a>(queue, v[2], cs);</div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  done = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  }</div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba865555c9f2e0458a7078486aa1b3254f">AND</a>: {</div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  <span class="keywordflow">for</span> (i = 0; i < v.<a class="code" href="group__ExprPkg.html#ga28b901d05e52a5c646f83a95cc74f94b">arity</a>(); ++i) {</div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  iCare = cs.find(v[i].negate());</div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="keywordflow">if</span> (iCare != iCareEnd) {</div>
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> rewrite = v.<a class="code" href="group__ExprPkg.html#gaae017ca8e68af655ba285c985dd9fba5">iffExpr</a>(<a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1Theory.html#abc2e30308c9e1f3cf752cfe8d939df1e" title="Access to ExprManager.">getEM</a>()-><a class="code" href="group__EM__Priv.html#gaae9db4c93c67cbf8bbf5d1e60e94f1ae" title="FALSE Expr.">falseExpr</a>());</div>
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  substTable[v] = <a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#a9592705bbf82393b7f6500fa33ead252" title="Temporary cheat for building theorems.">dummyTheorem</a>(rewrite);</div>
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  done = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  }</div>
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  }</div>
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <span class="keywordflow">if</span> (done) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span> </div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(v.<a class="code" href="group__ExprPkg.html#ga28b901d05e52a5c646f83a95cc74f94b">arity</a>() > 1, <span class="stringliteral">"Expected arity > 1"</span>);</div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  cs.insert(v[1]);</div>
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#ad12aee56d7dd01276af2d993ce4676c9" title="Helper for simplifyWithCare.">updateQueue</a>(queue, v[0], cs);</div>
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  cs.erase(v[1]);</div>
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  cs.insert(v[0]);</div>
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <span class="keywordflow">for</span> (i = 1; i < v.<a class="code" href="group__ExprPkg.html#ga28b901d05e52a5c646f83a95cc74f94b">arity</a>(); ++i) {</div>
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#ad12aee56d7dd01276af2d993ce4676c9" title="Helper for simplifyWithCare.">updateQueue</a>(queue, v[i], cs);</div>
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  }</div>
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  done = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  }</div>
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  <span class="keywordflow">case</span> <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba96727447c0ad447987df1c6415aef074">OR</a>: {</div>
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  <span class="keywordflow">for</span> (i = 0; i < v.<a class="code" href="group__ExprPkg.html#ga28b901d05e52a5c646f83a95cc74f94b">arity</a>(); ++i) {</div>
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  iCare = cs.find(v[i]);</div>
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  <span class="keywordflow">if</span> (iCare != iCareEnd) {</div>
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> rewrite = v.<a class="code" href="group__ExprPkg.html#gaae017ca8e68af655ba285c985dd9fba5">iffExpr</a>(<a class="code" href="classCVC3_1_1ExprTransform.html#adf66a811cae797e64ae8ff25e922766a">d_core</a>-><a class="code" href="classCVC3_1_1Theory.html#abc2e30308c9e1f3cf752cfe8d939df1e" title="Access to ExprManager.">getEM</a>()-><a class="code" href="group__EM__Priv.html#ga4471fca49c2acbb7b4cf71e72bc55d6a" title="TRUE Expr.">trueExpr</a>());</div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  substTable[v] = <a class="code" href="classCVC3_1_1ExprTransform.html#ae6bdbc5df7bd412e0594650d7ef02cc4">d_rules</a>-><a class="code" href="classCVC3_1_1CoreProofRules.html#a9592705bbf82393b7f6500fa33ead252" title="Temporary cheat for building theorems.">dummyTheorem</a>(rewrite);</div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  done = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  }</div>
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  }</div>
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  <span class="keywordflow">if</span> (done) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(v.<a class="code" href="group__ExprPkg.html#ga28b901d05e52a5c646f83a95cc74f94b">arity</a>() > 1, <span class="stringliteral">"Expected arity > 1"</span>);</div>
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  cs.insert(v[1].negate());</div>
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#ad12aee56d7dd01276af2d993ce4676c9" title="Helper for simplifyWithCare.">updateQueue</a>(queue, v[0], cs);</div>
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  cs.erase(v[1].negate());</div>
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  cs.insert(v[0].negate());</div>
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  <span class="keywordflow">for</span> (i = 1; i < v.<a class="code" href="group__ExprPkg.html#ga28b901d05e52a5c646f83a95cc74f94b">arity</a>(); ++i) {</div>
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#ad12aee56d7dd01276af2d993ce4676c9" title="Helper for simplifyWithCare.">updateQueue</a>(queue, v[i], cs);</div>
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  }</div>
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  done = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  }</div>
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  }</div>
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span> </div>
<div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  <span class="keywordflow">if</span> (done) <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span> </div>
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < v.<a class="code" href="group__ExprPkg.html#ga28b901d05e52a5c646f83a95cc74f94b">arity</a>(); ++i) {</div>
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  <a class="code" href="classCVC3_1_1ExprTransform.html#ad12aee56d7dd01276af2d993ce4676c9" title="Helper for simplifyWithCare.">updateQueue</a>(queue, v[i], cs);</div>
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  }</div>
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  }</div>
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  <a class="code" href="classCVC3_1_1ExprHashMap.html">ExprHashMap<Theorem></a> cache;</div>
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1ExprTransform.html#ae1f3a46b2e09495bb5afe3ac46f23c2b" title="Helper for simplifyWithCare.">substitute</a>(e, substTable, cache);</div>
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span> }</div>
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span> </div>
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