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<a href="dpllt__basic_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 dpllt_basic.cpp</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *\brief Basic implementation of dpllt module using generic sat solver</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * Author: Clark Barrett</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * Created: Mon Dec 12 19:09:43 2005</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * <hr></span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * License to use, copy, modify, sell and/or distribute this software</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * and its documentation for any purpose is hereby granted without</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * royalty, subject to the terms and conditions defined in the \ref</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * LICENSE file provided with this distribution.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * <hr></span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">/*****************************************************************************/</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </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="dpllt__basic_8h.html" title="Basic implementation of dpllt module.">dpllt_basic.h</a>"</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "<a class="code" href="cnf_8h.html" title="Basic classes for reasoning about formulas in CNF.">cnf.h</a>"</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "<a class="code" href="sat__api_8h.html">sat_api.h</a>"</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "<a class="code" href="exception_8h.html">exception.h</a>"</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">using namespace </span>std;</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">using namespace </span>CVC3;</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">using namespace </span>SAT;</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </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> <span class="comment">//int level_ = 0;</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="line"><a name="l00035"></a><span class="lineno"><a class="code" href="dpllt__basic_8cpp.html#a94f5febfa6e9f596f28dff5592b701bc"> 35</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="dpllt__basic_8cpp.html#a94f5febfa6e9f596f28dff5592b701bc">SATDLevelHook</a>(<span class="keywordtype">void</span> *cookie, <span class="keywordtype">int</span> change)</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>  <span class="comment">//cout << "backtrack to: " << level_ << " " << change << endl;</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="comment">//level_ += change;</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="comment">// cout<<"decision level called"<<endl;</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html">DPLLTBasic</a>* db = <span class="keyword">static_cast<</span><a class="code" href="classSAT_1_1DPLLTBasic.html">DPLLTBasic</a>*<span class="keyword">></span>(cookie);</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordflow">for</span> (; change > 0; change--) {</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  db-><a class="code" href="classSAT_1_1DPLLT.html#adec2886c41b3443c264b852bc5f5a84c">theoryAPI</a>()-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#a771e84ea6308cb7d3f7d02e7858b37db" title="Set a checkpoint for backtracking.">push</a>();</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  }</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">for</span> (; change < 0; change++) {</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  db-><a class="code" href="classSAT_1_1DPLLT.html#adec2886c41b3443c264b852bc5f5a84c">theoryAPI</a>()-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#a51a08aab04c2185513676a316aee14b4" title="Restore most recent checkpoint.">pop</a>();</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  }</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> }</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> </div>
<div class="line"><a name="l00050"></a><span class="lineno"><a class="code" href="dpllt__basic_8cpp.html#a404b181a9c554aa0076d99c93d963b23"> 50</a></span> <span class="keyword">static</span> <a class="code" href="unionSatSolver_1_1Lit.html">SatSolver::Lit</a> <a class="code" href="dpllt__basic_8cpp.html#a404b181a9c554aa0076d99c93d963b23">SATDecisionHook</a>(<span class="keywordtype">void</span> *cookie, <span class="keywordtype">bool</span> *done)</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="comment">// cout<<"sat decision called"<<endl;</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html">DPLLTBasic</a>* db = <span class="keyword">static_cast<</span><a class="code" href="classSAT_1_1DPLLTBasic.html">DPLLTBasic</a>*<span class="keyword">></span>(cookie);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">if</span> (db-><a class="code" href="classSAT_1_1DPLLT.html#adec2886c41b3443c264b852bc5f5a84c">theoryAPI</a>()-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#a6484231750edf5bd9d10d9408c6b5a59" title="Check if the work budget has been exceeded.">outOfResources</a>()) {</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="comment">// Tell SAT solver to exit with satisfiable result</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  *done = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordflow">return</span> <a class="code" href="unionSatSolver_1_1Lit.html">SatSolver::Lit</a>();</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">if</span> (!db-><a class="code" href="classSAT_1_1DPLLT.html#add78f8065e68c538dd0914949fb87aef">decider</a>()) {</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="comment">// Tell SAT solver to make its own choice</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">if</span> (!*done) <span class="keywordflow">return</span> <a class="code" href="unionSatSolver_1_1Lit.html">SatSolver::Lit</a>();</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  }</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <a class="code" href="classSAT_1_1Lit.html">Lit</a> lit = db-><a class="code" href="classSAT_1_1DPLLT.html#add78f8065e68c538dd0914949fb87aef">decider</a>()-><a class="code" href="classSAT_1_1DPLLT_1_1Decider.html#a9a15df2a6d6fdd38d9719f5681c068f2" title="Make a decision.">makeDecision</a>();</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">if</span> (!lit.<a class="code" href="classSAT_1_1Lit.html#ad5f6236c582c95356d720a7401623f36">isNull</a>()) {</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">//cout << "Split: " << lit.getVar().getIndex() << endl;</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="comment">// Tell SAT solver which literal to split on</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  *done = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">return</span> db-><a class="code" href="classSAT_1_1DPLLTBasic.html#a96c27b95e07e062a16beb412f68608a1">cvc2SAT</a>(lit);</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> </div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <a class="code" href="classSAT_1_1CNF__Formula__Impl.html">CNF_Formula_Impl</a> cnf;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <a class="code" href="classSAT_1_1DPLLT.html#ac612908684032ffe76ad97f04afd0ca8">DPLLT::ConsistentResult</a> result;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  result = db-><a class="code" href="classSAT_1_1DPLLT.html#adec2886c41b3443c264b852bc5f5a84c">theoryAPI</a>()-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#a4b3f4a97dbac21236e479a157d866545" title="Check consistency of the current assignment.">checkConsistent</a>(cnf, <span class="keyword">true</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"> 79</span>  <span class="keywordflow">if</span> (result == DPLLT::MAYBE_CONSISTENT) {</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <a class="code" href="debug_8h.html#a600cb2d68efe7cc413cccbb5714c7016">IF_DEBUG</a>(<span class="keywordtype">bool</span> added = ) db-><a class="code" href="classSAT_1_1DPLLT.html#adec2886c41b3443c264b852bc5f5a84c">theoryAPI</a>()-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#a7d4bf4b22f7e9f19174a4f2813294acd" title="Get new clauses from the theory.">getNewClauses</a>(cnf);</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(added, <span class="stringliteral">"Expected new clauses"</span>);</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  db-><a class="code" href="classSAT_1_1DPLLTBasic.html#acc013b97f0368bc1ca43cf374f06521c">addNewClauses</a>(cnf);</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  *done = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <a class="code" href="unionSatSolver_1_1Lit.html">SatSolver::Lit</a> l;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  l.<a class="code" href="unionSatSolver_1_1Lit.html#a96b4ad90adf8a2d6eee7af2c5b351481">id</a> = 0;</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">return</span> l;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  }</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (result == DPLLT::INCONSISTENT) {</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  db-><a class="code" href="classSAT_1_1DPLLTBasic.html#acc013b97f0368bc1ca43cf374f06521c">addNewClauses</a>(cnf);</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  }</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">// Tell SAT solver that we are done</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  *done = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">return</span> <a class="code" href="unionSatSolver_1_1Lit.html">SatSolver::Lit</a>();</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> }</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div>
<div class="line"><a name="l00098"></a><span class="lineno"><a class="code" href="dpllt__basic_8cpp.html#a29427231527df333a516cb975df83d28"> 98</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="dpllt__basic_8cpp.html#a29427231527df333a516cb975df83d28">SATAssignmentHook</a>(<span class="keywordtype">void</span> *cookie, <a class="code" href="unionSatSolver_1_1Var.html">SatSolver::Var</a> var, <span class="keywordtype">int</span> value)</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> {</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="comment">// cout<<"assignment called"<<endl;</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html">DPLLTBasic</a>* db = <span class="keyword">static_cast<</span><a class="code" href="classSAT_1_1DPLLTBasic.html">DPLLTBasic</a>*<span class="keyword">></span>(cookie);</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba7fa27e82c6c4f69434225ed81e5d151e">TRACE</a>(<span class="stringliteral">"DPLL Assign"</span>, var.<a class="code" href="unionSatSolver_1_1Var.html#a0dab20c0e01831dd8c30dd46fbeef533">id</a>, <span class="stringliteral">" := "</span>, value);</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">if</span> (value == 0)</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  db-><a class="code" href="classSAT_1_1DPLLT.html#adec2886c41b3443c264b852bc5f5a84c">theoryAPI</a>()-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#a3b3ef70567e0298cd3e971fd57d26fa6" title="Notify theory when a literal is set to true.">assertLit</a>(<a class="code" href="classSAT_1_1Lit.html">Lit</a>(db-><a class="code" href="classSAT_1_1DPLLTBasic.html#a0a36ed4b453c94678f0fbbc380a7d3fd">satSolver</a>()-><a class="code" href="classSatSolver.html#a78a8661d31ba8f3aca7e4c73a84f0bcf">GetVarIndex</a>(var), <span class="keyword">false</span>));</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (value == 1)</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  db-><a class="code" href="classSAT_1_1DPLLT.html#adec2886c41b3443c264b852bc5f5a84c">theoryAPI</a>()-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#a3b3ef70567e0298cd3e971fd57d26fa6" title="Notify theory when a literal is set to true.">assertLit</a>(<a class="code" href="classSAT_1_1Lit.html">Lit</a>(db-><a class="code" href="classSAT_1_1DPLLTBasic.html#a0a36ed4b453c94678f0fbbc380a7d3fd">satSolver</a>()-><a class="code" href="classSatSolver.html#a78a8661d31ba8f3aca7e4c73a84f0bcf">GetVarIndex</a>(var), <span class="keyword">true</span>));</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">else</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="classSAT_1_1CNF__Formula__Impl.html">CNF_Formula_Impl</a> cnf;</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <a class="code" href="classSAT_1_1DPLLT.html#ac612908684032ffe76ad97f04afd0ca8">DPLLT::ConsistentResult</a> result;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  result = db-><a class="code" href="classSAT_1_1DPLLT.html#adec2886c41b3443c264b852bc5f5a84c">theoryAPI</a>()-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#a4b3f4a97dbac21236e479a157d866545" title="Check consistency of the current assignment.">checkConsistent</a>(cnf, <span class="keyword">false</span>);</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">if</span> (result == DPLLT::INCONSISTENT) {</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  db-><a class="code" href="classSAT_1_1DPLLTBasic.html#acc013b97f0368bc1ca43cf374f06521c">addNewClauses</a>(cnf);</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  }</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> </div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div>
<div class="line"><a name="l00117"></a><span class="lineno"><a class="code" href="dpllt__basic_8cpp.html#a4f1ae66191e7e8cc326d540076eaeb3a"> 117</a></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="dpllt__basic_8cpp.html#a4f1ae66191e7e8cc326d540076eaeb3a">SATDeductionHook</a>(<span class="keywordtype">void</span> *cookie)</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>  <span class="comment">// cout<<"deduction called"<<endl;;</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html">DPLLTBasic</a>* db = <span class="keyword">static_cast<</span><a class="code" href="classSAT_1_1DPLLTBasic.html">DPLLTBasic</a>*<span class="keyword">></span>(cookie);</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <a class="code" href="classCVC3_1_1Clause.html" title="A class representing a CNF clause (a smart pointer)">Clause</a> c;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <a class="code" href="classSAT_1_1CNF__Formula__Impl.html">CNF_Formula_Impl</a> cnf;</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordflow">if</span> (db-><a class="code" href="classSAT_1_1DPLLT.html#adec2886c41b3443c264b852bc5f5a84c">theoryAPI</a>()-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#a7d4bf4b22f7e9f19174a4f2813294acd" title="Get new clauses from the theory.">getNewClauses</a>(cnf)) {</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  db-><a class="code" href="classSAT_1_1DPLLTBasic.html#acc013b97f0368bc1ca43cf374f06521c">addNewClauses</a>(cnf);</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  cnf.<a class="code" href="classSAT_1_1CNF__Formula__Impl.html#a6bc99606944e873ded2b37c954b18170">reset</a>();</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  }</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <a class="code" href="classSAT_1_1Lit.html">Lit</a> l = db-><a class="code" href="classSAT_1_1DPLLT.html#adec2886c41b3443c264b852bc5f5a84c">theoryAPI</a>()-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#ad61236a10860b9771e1e09505ab501b5" title="Get a literal that is implied by the current assignment.">getImplication</a>();</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">while</span> (!l.<a class="code" href="classSAT_1_1Lit.html#ad5f6236c582c95356d720a7401623f36">isNull</a>()) {</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  db-><a class="code" href="classSAT_1_1DPLLT.html#adec2886c41b3443c264b852bc5f5a84c">theoryAPI</a>()-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#ab7a85a15823cb0771d1e9bb4c0ce0703" title="Get an explanation for a literal that was implied.">getExplanation</a>(l, cnf);</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  db-><a class="code" href="classSAT_1_1DPLLTBasic.html#acc013b97f0368bc1ca43cf374f06521c">addNewClauses</a>(cnf);</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  cnf.<a class="code" href="classSAT_1_1CNF__Formula__Impl.html#a6bc99606944e873ded2b37c954b18170">reset</a>();</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  l = db-><a class="code" href="classSAT_1_1DPLLT.html#adec2886c41b3443c264b852bc5f5a84c">theoryAPI</a>()-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#ad61236a10860b9771e1e09505ab501b5" title="Get a literal that is implied by the current assignment.">getImplication</a>();</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> </div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div>
<div class="line"><a name="l00137"></a><span class="lineno"><a class="code" href="classSAT_1_1DPLLTBasic.html#a082ff0d184786dbd60a400320dbc826a"> 137</a></span> <span class="keywordtype">void</span> DPLLTBasic::createManager()</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>  d_mng = <a class="code" href="classSatSolver.html#aad67f64508f2560518d09449cd4e39ee">SatSolver::Create</a>();</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  d_mng->RegisterDLevelHook(<a class="code" href="dpllt__basic_8cpp.html#a94f5febfa6e9f596f28dff5592b701bc">SATDLevelHook</a>, <span class="keyword">this</span>);</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  d_mng->RegisterDecisionHook(<a class="code" href="dpllt__basic_8cpp.html#a404b181a9c554aa0076d99c93d963b23">SATDecisionHook</a>, <span class="keyword">this</span>);</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  d_mng->RegisterAssignmentHook(<a class="code" href="dpllt__basic_8cpp.html#a29427231527df333a516cb975df83d28">SATAssignmentHook</a>, <span class="keyword">this</span>);</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  d_mng->RegisterDeductionHook(<a class="code" href="dpllt__basic_8cpp.html#a4f1ae66191e7e8cc326d540076eaeb3a">SATDeductionHook</a>, <span class="keyword">this</span>);</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> }</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div>
<div class="line"><a name="l00147"></a><span class="lineno"><a class="code" href="classSAT_1_1DPLLTBasic.html#a744ab3115b0c945843cc1310d06280b3"> 147</a></span> <span class="keywordtype">void</span> DPLLTBasic::generate_CDB (<a class="code" href="classSAT_1_1CNF__Formula__Impl.html">CNF_Formula_Impl</a>& cnf)</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> {</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <a class="code" href="classSAT_1_1CNF__Formula.html#ac247d01a4cc1e5aab84294cb4c00ddbf">CNF_Formula::const_iterator</a> i, iend;</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <a class="code" href="classSAT_1_1Clause.html#af739bca890fe8219a7ebda3beefb0474">Clause::const_iterator</a> j, jend;</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  vector<SatSolver::Lit> clause;</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">if</span> (cnf.<a class="code" href="classSAT_1_1CNF__Formula__Impl.html#acf6148ff29fbfa341e58c134dc77fda0">numVars</a>() > unsigned(d_mng->NumVariables())) {</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  d_mng->AddVariables(cnf.<a class="code" href="classSAT_1_1CNF__Formula__Impl.html#acf6148ff29fbfa341e58c134dc77fda0">numVars</a>() - d_mng->NumVariables());</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  }</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  cnf.<a class="code" href="classSAT_1_1CNF__Formula__Impl.html#ad4e85285d108ed917b748e09c356aa7d">simplify</a>();</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">for</span> (i = cnf.<a class="code" href="classSAT_1_1CNF__Formula__Impl.html#a91087be2e218a74f381ed2b77e4c79dd">end</a>()-1, iend = cnf.<a class="code" href="classSAT_1_1CNF__Formula__Impl.html#a688bb703f9faac959eed7e9587c13658">begin</a>()-1; i != iend; --i) {</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="comment">//for (i = cnf.begin(), iend = cnf.end(); i != iend; i++) {</span></div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">if</span> ((*i).isSatisfied()) <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">for</span> (j = (*i).begin(), jend = (*i).end(); j != jend; ++j) {</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">if</span> (!(*j).isFalse()) clause.push_back(cvc2SAT(*j));</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  }</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">if</span> (clause.size() != 0) {</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  d_mng->AddClause(clause);</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  clause.clear();</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  }</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  }</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> }</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div>
<div class="line"><a name="l00170"></a><span class="lineno"><a class="code" href="classSAT_1_1DPLLTBasic.html#aa41a72c436f5faf03128d53bc4e3f9ef"> 170</a></span> <span class="keywordtype">void</span> DPLLTBasic::handle_result(<a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53">SatSolver::SATStatus</a> outcome)</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="keyword">const</span> <span class="keywordtype">char</span> * result = <span class="stringliteral">"UNKNOWN"</span>;</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">switch</span> (outcome) {</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">case</span> <a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53a8bc290b76f93dd68bdc44d083a7c4e25">SatSolver::SATISFIABLE</a>:</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment">// if (d_printStats) {</span></div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment">// cout << "Instance satisfiable" << endl;</span></div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment">// for (int i=1, sz = d_mng->NumVariables(); i <= sz; ++i) {</span></div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment">// switch(d_mng->GetVarAssignment(d_mng->GetVar(i))) {</span></div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="comment">// case -1:</span></div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="comment">// cout <<"("<< i<<")"; break;</span></div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="comment">// case 0:</span></div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="comment">// cout << "-" << i; break;</span></div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="comment">// case 1:</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="comment">// cout << i ; break;</span></div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="comment">// default:</span></div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment">// throw Exception("Unknown variable value state");</span></div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="comment">// }</span></div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment">// cout << " ";</span></div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="comment">// }</span></div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="comment">// cout << endl;</span></div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="comment">// }</span></div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  result = <span class="stringliteral">"SAT"</span>;</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">case</span> <a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53ad154fc26948177f01812d287e6340734">SatSolver::UNSATISFIABLE</a>:</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  result = <span class="stringliteral">"UNSAT"</span>;</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">if</span> (d_printStats) cout << <span class="stringliteral">"Instance unsatisfiable"</span> << <a class="code" href="group__ExprStream__Manip.html#ga05b0ea7353ec24fa8e7e272d7a7875d8" title="Print the end-of-line.">endl</a>;</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</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="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53a1a1ccd6ae244cce5f08fcdf2d4621fe0">SatSolver::BUDGET_EXCEEDED</a>:</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  result = <span class="stringliteral">"ABORT : TIME OUT"</span>;</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  cout << <span class="stringliteral">"Time out, unable to determine the satisfiablility of the instance"</span>;</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  cout << <a class="code" href="group__ExprStream__Manip.html#ga05b0ea7353ec24fa8e7e272d7a7875d8" title="Print the end-of-line.">endl</a>;</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">case</span> <a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53a987b167d27ed988755362d6decb025d8">SatSolver::OUT_OF_MEMORY</a>:</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  result = <span class="stringliteral">"ABORT : MEM OUT"</span>;</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  cout << <span class="stringliteral">"Memory out, unable to determing the satisfiablility of the instance"</span>;</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  cout << <a class="code" href="group__ExprStream__Manip.html#ga05b0ea7353ec24fa8e7e272d7a7875d8" title="Print the end-of-line.">endl</a>;</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>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">throw</span> <a class="code" href="classCVC3_1_1Exception.html">Exception</a>(<span class="stringliteral">"DPLTBasic::handle_result: Unknown outcome"</span>);</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  }</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">if</span> (d_printStats) d_mng->PrintStatistics();</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> }</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> </div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> </div>
<div class="line"><a name="l00215"></a><span class="lineno"><a class="code" href="classSAT_1_1DPLLTBasic.html#a1340aa7926370e1bc90d1da906eb8e79"> 215</a></span> <span class="keywordtype">void</span> DPLLTBasic::verify_solution()</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> {</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="comment">// Used to check that all clauses are true, but our decision maker</span></div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="comment">// may ignore some clauses that are no longer relevant, so now we check to</span></div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="comment">// make sure no clause is false.</span></div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">for</span> (<a class="code" href="unionSatSolver_1_1Clause.html">SatSolver::Clause</a> cl = d_mng->GetFirstClause(); !cl.<a class="code" href="unionSatSolver_1_1Clause.html#a0909ff4fdf3c02d96c2017d868129cc3">IsNull</a>();</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  cl = d_mng->GetNextClause(cl)) {</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  vector<SatSolver::Lit> lits;</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  d_mng->GetClauseLits(cl, &lits);</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordflow">for</span> (; lits.size() != 0;) {</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <a class="code" href="unionSatSolver_1_1Lit.html">SatSolver::Lit</a> lit = lits.back();</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <a class="code" href="unionSatSolver_1_1Var.html">SatSolver::Var</a> var = d_mng->GetVarFromLit(lit);</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordtype">int</span> sign = d_mng->GetPhaseFromLit(lit);</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keywordtype">int</span> var_value = d_mng->GetVarAssignment(var);</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordflow">if</span>( (var_value == 1 && sign == 0) ||</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  (var_value == 0 && sign == 1) ||</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  (var_value == -1) ) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  lits.pop_back();</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  }</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(lits.size() != 0, <span class="stringliteral">"DPLLTBasic::verify_solution failed"</span>);</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  }</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="classSAT_1_1DPLLTBasic.html#a11ff82c567a310525206ba0260fbde5e"> 239</a></span> DPLLTBasic::DPLLTBasic(<a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html">TheoryAPI</a>* theoryAPI, <a class="code" href="classSAT_1_1DPLLT_1_1Decider.html">Decider</a>* decider, <a class="code" href="classCVC3_1_1ContextManager.html" title="Manager for multiple contexts. Also holds current context.">ContextManager</a>* cm,</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordtype">bool</span> printStats)</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  : <a class="code" href="classSAT_1_1DPLLT.html">DPLLT</a>(theoryAPI, decider), d_cm(cm), d_ready(true),</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  d_printStats(printStats),</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  d_pushLevel(cm->getCurrentContext(), 0),</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  d_readyPrev(cm->getCurrentContext(), true),</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  d_prevStackSize(cm->getCurrentContext(), 0),</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  d_prevAStackSize(cm->getCurrentContext(), 0)</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span> {</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a082ff0d184786dbd60a400320dbc826a">createManager</a>();</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a> = <span class="keyword">new</span> <a class="code" href="classSAT_1_1CNF__Formula__Impl.html">CNF_Formula_Impl</a>();</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a6032bad91260ee1c03ed4553425d6cf9">d_assertions</a> = <span class="keyword">new</span> <a class="code" href="classSAT_1_1CD__CNF__Formula.html">CD_CNF_Formula</a>(<a class="code" href="classSAT_1_1DPLLTBasic.html#a9e8593063e800cb17793629543493624">d_cm</a>-><a class="code" href="classCVC3_1_1ContextManager.html#a66a7d900301c1459de90b048623d9297">getCurrentContext</a>());</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> }</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span> </div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> </div>
<div class="line"><a name="l00254"></a><span class="lineno"><a class="code" href="classSAT_1_1DPLLTBasic.html#a080afc4433840fd154465360ec97ca2b"> 254</a></span> <a class="code" href="classSAT_1_1DPLLTBasic.html#a080afc4433840fd154465360ec97ca2b">DPLLTBasic::~DPLLTBasic</a>()</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> {</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keywordflow">if</span> (<a class="code" href="classSAT_1_1DPLLTBasic.html#a6032bad91260ee1c03ed4553425d6cf9">d_assertions</a>) <span class="keyword">delete</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#a6032bad91260ee1c03ed4553425d6cf9">d_assertions</a>;</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keywordflow">if</span> (<a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a>) <span class="keyword">delete</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a>;</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keywordflow">if</span> (<a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>) <span class="keyword">delete</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>;</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">while</span> (<a class="code" href="classSAT_1_1DPLLTBasic.html#a4194dcc23968652060be41902ca5b376">d_assertionsStack</a>.size() > 0) {</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a6032bad91260ee1c03ed4553425d6cf9">d_assertions</a> = <a class="code" href="classSAT_1_1DPLLTBasic.html#a4194dcc23968652060be41902ca5b376">d_assertionsStack</a>.back();</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a4194dcc23968652060be41902ca5b376">d_assertionsStack</a>.pop_back();</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keyword">delete</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#a6032bad91260ee1c03ed4553425d6cf9">d_assertions</a>;</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  }</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keywordflow">while</span> (<a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.size() > 0) {</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a> = <a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.back();</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.pop_back();</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keyword">delete</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>;</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a> = <a class="code" href="classSAT_1_1DPLLTBasic.html#a423ff42fd5ccad2be5f8dd97654e9a81">d_cnfStack</a>.back();</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a423ff42fd5ccad2be5f8dd97654e9a81">d_cnfStack</a>.pop_back();</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keyword">delete</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a>;</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  }</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</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> </div>
<div class="line"><a name="l00275"></a><span class="lineno"><a class="code" href="classSAT_1_1DPLLTBasic.html#abfe1c680e074676f0f291125e7eb150e"> 275</a></span> <span class="keywordtype">void</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#abfe1c680e074676f0f291125e7eb150e">DPLLTBasic::addNewClause</a>(<span class="keyword">const</span> <a class="code" href="classSAT_1_1Clause.html">Clause</a>& c)</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="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(c.<a class="code" href="classSAT_1_1Clause.html#a3c64729606d93f16b66f58d62ef253d5">size</a>() > 0, <span class="stringliteral">"Expected non-empty clause"</span>);</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(c.<a class="code" href="classSAT_1_1Clause.html#a88bfd90868e75a24feffc7f428e30369">getMaxVar</a>() <= unsigned(<a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>-><a class="code" href="classSatSolver.html#a75ac3919b9d2794bd2443e32bb1f29fd">NumVariables</a>()),</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="stringliteral">"Expected no new variables"</span>);</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  vector<SatSolver::Lit> lits;</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keywordflow">for</span> (<a class="code" href="classSAT_1_1Clause.html#af739bca890fe8219a7ebda3beefb0474">Clause::const_iterator</a> i = c.<a class="code" href="classSAT_1_1Clause.html#a6d0f568c60e06a1c59c2bf37788ff778">begin</a>(), iend = c.<a class="code" href="classSAT_1_1Clause.html#a38094b009b923d08ca9b1a8f517b591e">end</a>(); i < iend; ++i) {</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keywordflow">if</span> (!(*i).isFalse()) lits.push_back(<a class="code" href="classSAT_1_1DPLLTBasic.html#a96c27b95e07e062a16beb412f68608a1">cvc2SAT</a>(*i));</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>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a0a36ed4b453c94678f0fbbc380a7d3fd">satSolver</a>()-><a class="code" href="classSatSolver.html#a1fb269f00fd9da8242e2bad01967f097">AddClause</a>(lits);</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  (*d_cnf) += c;</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> }</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> </div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> </div>
<div class="line"><a name="l00289"></a><span class="lineno"><a class="code" href="classSAT_1_1DPLLTBasic.html#acc013b97f0368bc1ca43cf374f06521c"> 289</a></span> <span class="keywordtype">void</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#acc013b97f0368bc1ca43cf374f06521c">DPLLTBasic::addNewClauses</a>(<a class="code" href="classSAT_1_1CNF__Formula__Impl.html">CNF_Formula_Impl</a>& cnf)</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span> {</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <a class="code" href="classSAT_1_1CNF__Formula.html#ac247d01a4cc1e5aab84294cb4c00ddbf">CNF_Formula::const_iterator</a> i, iend;</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <a class="code" href="classSAT_1_1Clause.html#af739bca890fe8219a7ebda3beefb0474">Clause::const_iterator</a> j, jend;</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  vector<SatSolver::Lit> clause;</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordflow">if</span> (cnf.<a class="code" href="classSAT_1_1CNF__Formula__Impl.html#acf6148ff29fbfa341e58c134dc77fda0">numVars</a>() > unsigned(<a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>-><a class="code" href="classSatSolver.html#a75ac3919b9d2794bd2443e32bb1f29fd">NumVariables</a>())) {</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>-><a class="code" href="classSatSolver.html#acf0e4f44556b7cfcea37100f92962fee">AddVariables</a>(cnf.<a class="code" href="classSAT_1_1CNF__Formula__Impl.html#acf6148ff29fbfa341e58c134dc77fda0">numVars</a>() - <a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>-><a class="code" href="classSatSolver.html#a75ac3919b9d2794bd2443e32bb1f29fd">NumVariables</a>());</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  }</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  cnf.<a class="code" href="classSAT_1_1CNF__Formula__Impl.html#ad4e85285d108ed917b748e09c356aa7d">simplify</a>();</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keywordflow">for</span> (i = cnf.<a class="code" href="classSAT_1_1CNF__Formula__Impl.html#a91087be2e218a74f381ed2b77e4c79dd">end</a>()-1, iend = cnf.<a class="code" href="classSAT_1_1CNF__Formula__Impl.html#a688bb703f9faac959eed7e9587c13658">begin</a>()-1; i != iend; --i) {</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="comment">//for (i = cnf.begin(), iend = cnf.end(); i != iend; i++) {</span></div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keywordflow">if</span> ((*i).isSatisfied()) <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keywordflow">for</span> (j = (*i).begin(), jend = (*i).end(); j != jend; ++j) {</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keywordflow">if</span> (!(*j).isFalse()) clause.push_back(<a class="code" href="classSAT_1_1DPLLTBasic.html#a96c27b95e07e062a16beb412f68608a1">cvc2SAT</a>(*j));</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  }</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="keywordflow">if</span> (clause.size() != 0) {</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>-><a class="code" href="classSatSolver.html#a1fb269f00fd9da8242e2bad01967f097">AddClause</a>(clause);</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  clause.clear();</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  }</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  }</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a744ab3115b0c945843cc1310d06280b3">generate_CDB</a>(cnf);</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  (*d_cnf) += cnf;</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> </div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div>
<div class="line"><a name="l00314"></a><span class="lineno"><a class="code" href="classSAT_1_1DPLLTBasic.html#a8c8f7e178849aead6754e44e3e63dc0c"> 314</a></span> <span class="keywordtype">void</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#a8c8f7e178849aead6754e44e3e63dc0c" title="Set a checkpoint for backtracking.">DPLLTBasic::push</a>()</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> {</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <a class="code" href="classSAT_1_1DPLLT.html#aafa21967afbd30f8c18ebc9f6c37bfa9">d_theoryAPI</a>-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#a771e84ea6308cb7d3f7d02e7858b37db" title="Set a checkpoint for backtracking.">push</a>();</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#ac1e928276774bc77063ee05aa2ceb078">d_pushLevel</a> = <a class="code" href="classSAT_1_1DPLLTBasic.html#ac1e928276774bc77063ee05aa2ceb078">d_pushLevel</a> + 1;</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#ada4aa8a05927fc1ea334edea0b5f8fd3">d_prevStackSize</a> = <a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.size();</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a0bd6e3a5262667eed68fd59cf6c39551">d_prevAStackSize</a> = <a class="code" href="classSAT_1_1DPLLTBasic.html#a4194dcc23968652060be41902ca5b376">d_assertionsStack</a>.size();</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a04bf3fdf12271b364b22d40dc352f634">d_readyPrev</a> = <a class="code" href="classSAT_1_1DPLLTBasic.html#af53a2ee63b573d7ddd70395cc58fab6a">d_ready</a>;</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span> }</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span> </div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span> </div>
<div class="line"><a name="l00324"></a><span class="lineno"><a class="code" href="classSAT_1_1DPLLTBasic.html#aff5dbd3c2a47f003d7b388a8b673cc85"> 324</a></span> <span class="keywordtype">void</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#aff5dbd3c2a47f003d7b388a8b673cc85" title="Restore checkpoint.">DPLLTBasic::pop</a>()</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span> {</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keywordtype">unsigned</span> pushLevel = <a class="code" href="classSAT_1_1DPLLTBasic.html#ac1e928276774bc77063ee05aa2ceb078">d_pushLevel</a>;</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordtype">unsigned</span> prevStackSize = <a class="code" href="classSAT_1_1DPLLTBasic.html#ada4aa8a05927fc1ea334edea0b5f8fd3">d_prevStackSize</a>;</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="keywordtype">unsigned</span> prevAStackSize = <a class="code" href="classSAT_1_1DPLLTBasic.html#a0bd6e3a5262667eed68fd59cf6c39551">d_prevAStackSize</a>;</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="keywordtype">bool</span> readyPrev = <a class="code" href="classSAT_1_1DPLLTBasic.html#a04bf3fdf12271b364b22d40dc352f634">d_readyPrev</a>;</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span> </div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="keywordflow">while</span> (<a class="code" href="classSAT_1_1DPLLTBasic.html#a4194dcc23968652060be41902ca5b376">d_assertionsStack</a>.size() > prevAStackSize) {</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="keyword">delete</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#a6032bad91260ee1c03ed4553425d6cf9">d_assertions</a>;</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a6032bad91260ee1c03ed4553425d6cf9">d_assertions</a> = <a class="code" href="classSAT_1_1DPLLTBasic.html#a4194dcc23968652060be41902ca5b376">d_assertionsStack</a>.back();</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a4194dcc23968652060be41902ca5b376">d_assertionsStack</a>.pop_back();</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> </div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keywordflow">while</span> (<a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.size() > prevStackSize) {</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="keyword">delete</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>;</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="keyword">delete</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a>;</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a> = <a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.back();</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.pop_back();</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a> = <a class="code" href="classSAT_1_1DPLLTBasic.html#a423ff42fd5ccad2be5f8dd97654e9a81">d_cnfStack</a>.back();</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a423ff42fd5ccad2be5f8dd97654e9a81">d_cnfStack</a>.pop_back();</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(<a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.size() == <a class="code" href="classSAT_1_1DPLLTBasic.html#a423ff42fd5ccad2be5f8dd97654e9a81">d_cnfStack</a>.size(), <span class="stringliteral">"size mismatch"</span>);</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>  <span class="keywordflow">if</span> (<a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.size() == 0) {</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keywordflow">if</span> (readyPrev && !<a class="code" href="classSAT_1_1DPLLTBasic.html#af53a2ee63b573d7ddd70395cc58fab6a">d_ready</a>) {</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="keyword">delete</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>;</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keyword">delete</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a>;</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a082ff0d184786dbd60a400320dbc826a">createManager</a>();</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a> = <span class="keyword">new</span> <a class="code" href="classSAT_1_1CNF__Formula__Impl.html">CNF_Formula_Impl</a>();</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#af53a2ee63b573d7ddd70395cc58fab6a">d_ready</a> = <span class="keyword">true</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>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(readyPrev == <a class="code" href="classSAT_1_1DPLLTBasic.html#af53a2ee63b573d7ddd70395cc58fab6a">d_ready</a>, <span class="stringliteral">"Unexpected ready values"</span>);</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  }</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  }</div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(!<a class="code" href="classSAT_1_1DPLLTBasic.html#af53a2ee63b573d7ddd70395cc58fab6a">d_ready</a>, <span class="stringliteral">"Expected ready to be false"</span>);</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  }</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> </div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="keywordflow">while</span> (<a class="code" href="classSAT_1_1DPLLTBasic.html#ac1e928276774bc77063ee05aa2ceb078">d_pushLevel</a> == pushLevel)</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <a class="code" href="classSAT_1_1DPLLT.html#aafa21967afbd30f8c18ebc9f6c37bfa9">d_theoryAPI</a>-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#a51a08aab04c2185513676a316aee14b4" title="Restore most recent checkpoint.">pop</a>();</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span> </div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span> }</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> </div>
<div class="line"><a name="l00368"></a><span class="lineno"><a class="code" href="classSAT_1_1DPLLTBasic.html#a4047558a5e4a9e84b81e388b220d4e79"> 368</a></span> std::vector<SAT::Lit> <a class="code" href="classSAT_1_1DPLLTBasic.html#a4047558a5e4a9e84b81e388b220d4e79">DPLLTBasic::getCurAssignments</a>(){</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  std::vector<SAT::Lit> nothing;</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keywordflow">return</span> nothing;</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> }</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> </div>
<div class="line"><a name="l00373"></a><span class="lineno"><a class="code" href="classSAT_1_1DPLLTBasic.html#abaf2763764a68c9e4fbc190953b4e6c8"> 373</a></span> std::vector<std::vector<SAT::Lit> > <a class="code" href="classSAT_1_1DPLLTBasic.html#abaf2763764a68c9e4fbc190953b4e6c8">DPLLTBasic::getCurClauses</a>(){</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  std::vector<std::vector<SAT::Lit> > nothing;</div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="keywordflow">return</span> nothing;</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> </div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span> </div>
<div class="line"><a name="l00379"></a><span class="lineno"><a class="code" href="classSAT_1_1DPLLTBasic.html#afaffe075e05bcd2e56aeede2154e0d5a"> 379</a></span> <span class="keywordtype">void</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#afaffe075e05bcd2e56aeede2154e0d5a" title="Add new clauses to the SAT solver.">DPLLTBasic::addAssertion</a>(<span class="keyword">const</span> <a class="code" href="classSAT_1_1CNF__Formula.html">CNF_Formula</a>& cnf)</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">// Immediately assert unit clauses</span></div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <a class="code" href="classSAT_1_1CNF__Formula.html#ac247d01a4cc1e5aab84294cb4c00ddbf">CNF_Formula::const_iterator</a> i, iend;</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <a class="code" href="classSAT_1_1Clause.html#af739bca890fe8219a7ebda3beefb0474">Clause::const_iterator</a> j, jend;</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keywordflow">for</span> (i = cnf.<a class="code" href="classSAT_1_1CNF__Formula.html#a6631cf3c5a6938f655360f7f63522b79">end</a>()-1, iend = cnf.<a class="code" href="classSAT_1_1CNF__Formula.html#a69dfc94796b23b6913c44a4d6d60f0d8">begin</a>()-1; i != iend; --i) {</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="keywordflow">if</span> ((*i).isUnit()) {</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  j = (*i).begin();</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <a class="code" href="classSAT_1_1DPLLT.html#aafa21967afbd30f8c18ebc9f6c37bfa9">d_theoryAPI</a>-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#a3b3ef70567e0298cd3e971fd57d26fa6" title="Notify theory when a literal is set to true.">assertLit</a>(*j);</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  }</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  }</div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span> </div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="comment">// Accumulate assertions in d_assertions</span></div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  (*d_assertions) += cnf;</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span> }</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span> </div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span> </div>
<div class="line"><a name="l00396"></a><span class="lineno"><a class="code" href="classSAT_1_1DPLLTBasic.html#a195fdfa1972c882fd3d87eae0742c7ac"> 396</a></span> <a class="code" href="namespaceCVC3.html#a060d21b3207cc3471e24f8dbcff3498b">QueryResult</a> <a class="code" href="classSAT_1_1DPLLTBasic.html#a195fdfa1972c882fd3d87eae0742c7ac" title="Check the satisfiability of a set of clauses in the current context.">DPLLTBasic::checkSat</a>(<span class="keyword">const</span> <a class="code" href="classSAT_1_1CNF__Formula.html">CNF_Formula</a>& cnf)</div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span> {</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53">SatSolver::SATStatus</a> result;</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span> </div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  <span class="keywordflow">if</span> (!<a class="code" href="classSAT_1_1DPLLTBasic.html#af53a2ee63b573d7ddd70395cc58fab6a">d_ready</a>) {</div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="comment">// Copy current formula</span></div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a423ff42fd5ccad2be5f8dd97654e9a81">d_cnfStack</a>.push_back(<a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a>);</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a> = <span class="keyword">new</span> <a class="code" href="classSAT_1_1CNF__Formula__Impl.html">CNF_Formula_Impl</a>(*<a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a>);</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="comment">// make unit clauses for current assignment</span></div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="keywordtype">int</span> value;</div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i <= <a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>-><a class="code" href="classSatSolver.html#a75ac3919b9d2794bd2443e32bb1f29fd">NumVariables</a>(); ++i) {</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  value = <a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>-><a class="code" href="classSatSolver.html#a111b3a56be2feaae62bc57483f0aa9bf">GetVarAssignment</a>(<a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>-><a class="code" href="classSatSolver.html#aebeecffca634f23d8c9b941b44b4cfe7">GetVar</a>(i));</div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <span class="keywordflow">if</span> (value == 1) {</div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a>-><a class="code" href="classSAT_1_1CNF__Formula__Impl.html#adffd09ad005d74fdad1be0fc80727767">newClause</a>();</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a>-><a class="code" href="classSAT_1_1CNF__Formula.html#a4c59929d06b987ed68639f1b85a62606">addLiteral</a>(<a class="code" href="classSAT_1_1Lit.html">Lit</a>(i));</div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  }</div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (value == 0) {</div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a>-><a class="code" href="classSAT_1_1CNF__Formula__Impl.html#adffd09ad005d74fdad1be0fc80727767">newClause</a>();</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a>-><a class="code" href="classSAT_1_1CNF__Formula.html#a4c59929d06b987ed68639f1b85a62606">addLiteral</a>(<a class="code" href="classSAT_1_1Lit.html">Lit</a>(i, <span class="keyword">false</span>));</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>  }</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="comment">// Create new manager</span></div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.push_back(<a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>);</div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(<a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.size() == <a class="code" href="classSAT_1_1DPLLTBasic.html#a423ff42fd5ccad2be5f8dd97654e9a81">d_cnfStack</a>.size(), <span class="stringliteral">"size mismatch"</span>);</div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a082ff0d184786dbd60a400320dbc826a">createManager</a>();</div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  }</div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#af53a2ee63b573d7ddd70395cc58fab6a">d_ready</a> = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span> </div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="keywordflow">if</span> (<a class="code" href="classSAT_1_1DPLLTBasic.html#a6032bad91260ee1c03ed4553425d6cf9">d_assertions</a>) (*d_cnf) += (*d_assertions);</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>  (*d_cnf) += cnf;</div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a744ab3115b0c945843cc1310d06280b3">generate_CDB</a>(*<a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a>);</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>  <a class="code" href="classSAT_1_1DPLLT.html#aafa21967afbd30f8c18ebc9f6c37bfa9">d_theoryAPI</a>-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#a771e84ea6308cb7d3f7d02e7858b37db" title="Set a checkpoint for backtracking.">push</a>();</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>  result = <a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>-><a class="code" href="classSatSolver.html#a0dfc1321f3446be70349f35881144433">Satisfiable</a>(<span class="keyword">true</span>);</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <span class="keywordflow">if</span> (result == <a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53a8bc290b76f93dd68bdc44d083a7c4e25">SatSolver::SATISFIABLE</a> && <a class="code" href="classSAT_1_1DPLLT.html#adec2886c41b3443c264b852bc5f5a84c">theoryAPI</a>()->outOfResources())</div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  result = <a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53a1a1ccd6ae244cce5f08fcdf2d4621fe0">SatSolver::BUDGET_EXCEEDED</a>;</div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span> </div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="comment">// Print result</span></div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span> </div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keywordflow">if</span> (result == <a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53a8bc290b76f93dd68bdc44d083a7c4e25">SatSolver::SATISFIABLE</a>) {</div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a1340aa7926370e1bc90d1da906eb8e79">verify_solution</a>();</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="keywordflow">if</span> (<a class="code" href="classSAT_1_1DPLLTBasic.html#a6032bad91260ee1c03ed4553425d6cf9">d_assertions</a>-><a class="code" href="classSAT_1_1CD__CNF__Formula.html#a40948c1f2c702dfe58e4b63776ec18fd">numClauses</a>() > 0) {</div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a4194dcc23968652060be41902ca5b376">d_assertionsStack</a>.push_back(<a class="code" href="classSAT_1_1DPLLTBasic.html#a6032bad91260ee1c03ed4553425d6cf9">d_assertions</a>);</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a6032bad91260ee1c03ed4553425d6cf9">d_assertions</a> = <span class="keyword">new</span> <a class="code" href="classSAT_1_1CD__CNF__Formula.html">CD_CNF_Formula</a>(<a class="code" href="classSAT_1_1DPLLTBasic.html#a9e8593063e800cb17793629543493624">d_cm</a>-><a class="code" href="classCVC3_1_1ContextManager.html#a66a7d900301c1459de90b048623d9297">getCurrentContext</a>());</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  }</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>  <a class="code" href="classSAT_1_1DPLLTBasic.html#aa41a72c436f5faf03128d53bc4e3f9ef">handle_result</a> (result);</div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span> </div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="keywordflow">if</span> (result == <a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53ad154fc26948177f01812d287e6340734">SatSolver::UNSATISFIABLE</a>) {</div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <a class="code" href="classSAT_1_1DPLLT.html#aafa21967afbd30f8c18ebc9f6c37bfa9">d_theoryAPI</a>-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#a51a08aab04c2185513676a316aee14b4" title="Restore most recent checkpoint.">pop</a>();</div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <span class="keyword">delete</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>;</div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="keyword">delete</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a>;</div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keywordflow">if</span> (<a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.size() == 0) {</div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a082ff0d184786dbd60a400320dbc826a">createManager</a>();</div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a> = <span class="keyword">new</span> <a class="code" href="classSAT_1_1CNF__Formula__Impl.html">CNF_Formula_Impl</a>();</div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#af53a2ee63b573d7ddd70395cc58fab6a">d_ready</a> = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  }</div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a> = <a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.back();</div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.pop_back();</div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a> = <a class="code" href="classSAT_1_1DPLLTBasic.html#a423ff42fd5ccad2be5f8dd97654e9a81">d_cnfStack</a>.back();</div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a423ff42fd5ccad2be5f8dd97654e9a81">d_cnfStack</a>.pop_back();</div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(<a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.size() == <a class="code" href="classSAT_1_1DPLLTBasic.html#a423ff42fd5ccad2be5f8dd97654e9a81">d_cnfStack</a>.size(), <span class="stringliteral">"size mismatch"</span>);</div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  }</div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  }</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>  <span class="keywordflow">return</span> (result == <a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53ad154fc26948177f01812d287e6340734">SatSolver::UNSATISFIABLE</a> ? <a class="code" href="xchaff__solver_8h.html#a259c70233f322b3e490149190b8bb87ba709691b4dfbbba6c6f992a7cd34dd0e9">UNSATISFIABLE</a> :</div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  result == <a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53a8bc290b76f93dd68bdc44d083a7c4e25">SatSolver::SATISFIABLE</a> ? <a class="code" href="xchaff__solver_8h.html#a259c70233f322b3e490149190b8bb87baa6a5c07f8c320f440ebc34fed65eb550">SATISFIABLE</a> :</div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <a class="code" href="namespaceCVC3.html#a060d21b3207cc3471e24f8dbcff3498ba33046505033fa14ebb412efb4474ff56">ABORT</a>);</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> </div>
<div class="line"><a name="l00472"></a><span class="lineno"><a class="code" href="classSAT_1_1DPLLTBasic.html#a1271494f0f1f6e9c249d8fce8418ecd7"> 472</a></span> <a class="code" href="namespaceCVC3.html#a060d21b3207cc3471e24f8dbcff3498b">QueryResult</a> <a class="code" href="classSAT_1_1DPLLTBasic.html#a1271494f0f1f6e9c249d8fce8418ecd7" title="Continue checking the last check with additional constraints.">DPLLTBasic::continueCheck</a>(<span class="keyword">const</span> <a class="code" href="classSAT_1_1CNF__Formula.html">CNF_Formula</a>& cnf)</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>  <a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53">SatSolver::SATStatus</a> result;</div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span> </div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keywordflow">if</span> (<a class="code" href="classSAT_1_1DPLLTBasic.html#af53a2ee63b573d7ddd70395cc58fab6a">d_ready</a>) {</div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="keywordflow">throw</span> <a class="code" href="classCVC3_1_1Exception.html">Exception</a></div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  (<span class="stringliteral">"continueCheck should be called after a previous satisfiable result"</span>);</div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  }</div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="keywordflow">if</span> (<a class="code" href="classSAT_1_1DPLLTBasic.html#a6032bad91260ee1c03ed4553425d6cf9">d_assertions</a>-><a class="code" href="classSAT_1_1CD__CNF__Formula.html#a40948c1f2c702dfe58e4b63776ec18fd">numClauses</a>() > 0) {</div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <span class="keywordflow">throw</span> <a class="code" href="classCVC3_1_1Exception.html">Exception</a></div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  (<span class="stringliteral">"a check cannot be continued if new assertions have been made"</span>);</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="classSAT_1_1CNF__Formula__Impl.html">CNF_Formula_Impl</a> cnfImpl(cnf);</div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span> </div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a744ab3115b0c945843cc1310d06280b3">generate_CDB</a>(cnfImpl);</div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  (*d_cnf) += cnfImpl;</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>  result = <a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>-><a class="code" href="classSatSolver.html#ab4e73333fbc4b4372a18c66a40d4757f">Continue</a>();</div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  <span class="keywordflow">if</span> (result == <a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53a8bc290b76f93dd68bdc44d083a7c4e25">SatSolver::SATISFIABLE</a> && <a class="code" href="classSAT_1_1DPLLT.html#adec2886c41b3443c264b852bc5f5a84c">theoryAPI</a>()->outOfResources())</div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  result = <a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53a1a1ccd6ae244cce5f08fcdf2d4621fe0">SatSolver::BUDGET_EXCEEDED</a>;</div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span> </div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  <span class="comment">// Print result</span></div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span> </div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <span class="keywordflow">if</span> (result == <a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53a8bc290b76f93dd68bdc44d083a7c4e25">SatSolver::SATISFIABLE</a>)</div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a1340aa7926370e1bc90d1da906eb8e79">verify_solution</a>();</div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#aa41a72c436f5faf03128d53bc4e3f9ef">handle_result</a> (result);</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="keywordflow">if</span> (result == <a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53ad154fc26948177f01812d287e6340734">SatSolver::UNSATISFIABLE</a>) {</div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <a class="code" href="classSAT_1_1DPLLT.html#aafa21967afbd30f8c18ebc9f6c37bfa9">d_theoryAPI</a>-><a class="code" href="classSAT_1_1DPLLT_1_1TheoryAPI.html#a51a08aab04c2185513676a316aee14b4" title="Restore most recent checkpoint.">pop</a>();</div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="keyword">delete</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a>;</div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  <span class="keyword">delete</span> <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a>;</div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  <span class="keywordflow">if</span> (<a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.size() == 0) {</div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a082ff0d184786dbd60a400320dbc826a">createManager</a>();</div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a> = <span class="keyword">new</span> <a class="code" href="classSAT_1_1CNF__Formula__Impl.html">CNF_Formula_Impl</a>();</div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#af53a2ee63b573d7ddd70395cc58fab6a">d_ready</a> = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  }</div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a21ec19cee9ab93b7cda66d209dd6e676">d_mng</a> = <a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.back();</div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.pop_back();</div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a191c0c9c76c2ab5a37038c32a7c6ab58">d_cnf</a> = <a class="code" href="classSAT_1_1DPLLTBasic.html#a423ff42fd5ccad2be5f8dd97654e9a81">d_cnfStack</a>.back();</div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  <a class="code" href="classSAT_1_1DPLLTBasic.html#a423ff42fd5ccad2be5f8dd97654e9a81">d_cnfStack</a>.pop_back();</div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(<a class="code" href="classSAT_1_1DPLLTBasic.html#aba339d2d7e2f5ed7bf1367e497e73087">d_mngStack</a>.size() == <a class="code" href="classSAT_1_1DPLLTBasic.html#a423ff42fd5ccad2be5f8dd97654e9a81">d_cnfStack</a>.size(), <span class="stringliteral">"size mismatch"</span>);</div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  }</div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  }</div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span> </div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="keywordflow">return</span> (result == <a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53ad154fc26948177f01812d287e6340734">SatSolver::UNSATISFIABLE</a> ? <a class="code" href="xchaff__solver_8h.html#a259c70233f322b3e490149190b8bb87ba709691b4dfbbba6c6f992a7cd34dd0e9">UNSATISFIABLE</a> :</div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  result == <a class="code" href="classSatSolver.html#a09aef5b79042b31f37d0184667c34d53a8bc290b76f93dd68bdc44d083a7c4e25">SatSolver::SATISFIABLE</a> ? <a class="code" href="xchaff__solver_8h.html#a259c70233f322b3e490149190b8bb87baa6a5c07f8c320f440ebc34fed65eb550">SATISFIABLE</a> :</div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <a class="code" href="namespaceCVC3.html#a060d21b3207cc3471e24f8dbcff3498ba33046505033fa14ebb412efb4474ff56">ABORT</a>);</div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span> }</div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span> </div>
<div class="line"><a name="l00522"></a><span class="lineno"><a class="code" href="classSAT_1_1DPLLTBasic.html#a0c4e0f09aacb6791929ac0eb6e6662c0"> 522</a></span> <a class="code" href="classCVC3_1_1Proof.html">CVC3::Proof</a> <a class="code" href="classSAT_1_1DPLLTBasic.html#a0c4e0f09aacb6791929ac0eb6e6662c0" title="Get the proof from SAT engine.">DPLLTBasic::getSatProof</a>(<a class="code" href="classSAT_1_1CNF__Manager.html">CNF_Manager</a>* cnfManager, <a class="code" href="classCVC3_1_1TheoryCore.html" title="This theory handles the built-in logical connectives plus equality. It also handles the registration ...">CVC3::TheoryCore</a>* core){</div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <a class="code" href="classCVC3_1_1Proof.html">CVC3::Proof</a> temp;</div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <span class="keywordflow">return</span> temp;</div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span> }</div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span> </div>
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