390 lines
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390 lines
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<a href="integer__search_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2010-2018 Google LLC</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// You may obtain a copy of the License at</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// See the License for the specific language governing permissions and</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// limitations under the License.</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  </div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// This file contains all the top-level logic responsible for driving the search</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">// of a satisfiability integer problem. What decision we take next, which new</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// Literal associated to an IntegerLiteral we create and when we restart.</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">// For an optimization problem, our algorithm solves a sequence of decision</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">// problem using this file as an entry point. Note that some heuristics here</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// still use the objective if there is one in order to orient the search towards</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// good feasible solution though.</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  </div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#ifndef OR_TOOLS_SAT_INTEGER_SEARCH_H_</span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#define OR_TOOLS_SAT_INTEGER_SEARCH_H_</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  </div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <vector></span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  </div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "<a class="code" href="integer_8h.html">ortools/sat/integer.h</a>"</span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "<a class="code" href="sat__base_8h.html">ortools/sat/sat_base.h</a>"</span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include "<a class="code" href="sat__solver_8h.html">ortools/sat/sat_solver.h</a>"</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  </div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">namespace </span><a class="code" href="namespaceoperations__research.html">operations_research</a> {</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">namespace </span>sat {</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  </div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">// This is used to hold the next decision the solver will take. It is either</span></div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment">// a pure Boolean literal decision or correspond to an IntegerLiteral one.</span></div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment">// At most one of the two options should be set.</span></div>
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<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html"> 39</a></span> <span class="keyword">struct </span><a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a> {</div>
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<div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#ae524bf12eec388724545b7f47e3538ef"> 40</a></span>  <a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#ae524bf12eec388724545b7f47e3538ef">BooleanOrIntegerLiteral</a>() {}</div>
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<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#a706766402ca4c78519e6c10eb76c8db3"> 41</a></span>  <span class="keyword">explicit</span> <a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#a706766402ca4c78519e6c10eb76c8db3">BooleanOrIntegerLiteral</a>(LiteralIndex <a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>)</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  : <a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#a3c6f3ae96a90c7fcef34dd0f1ce0297e">boolean_literal_index</a>(<a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>) {}</div>
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<div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#afcfb0c6902e66dba068a76719658550d"> 43</a></span>  <span class="keyword">explicit</span> <a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#afcfb0c6902e66dba068a76719658550d">BooleanOrIntegerLiteral</a>(<a class="code" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> i_lit)</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  : <a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#aee356429e37f0750e38ee17ae1464a00">integer_literal</a>(i_lit) {}</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  </div>
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<div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#ae26b73bbf70dc88433be39df364ca7c1"> 46</a></span>  <span class="keywordtype">bool</span> <a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#ae26b73bbf70dc88433be39df364ca7c1">HasValue</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">return</span> <a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#a3c6f3ae96a90c7fcef34dd0f1ce0297e">boolean_literal_index</a> != <a class="code" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a> ||</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#aee356429e37f0750e38ee17ae1464a00">integer_literal</a>.<a class="code" href="structoperations__research_1_1sat_1_1_integer_literal.html#ab6516f556b715738034b30d290c40214">var</a> != <a class="code" href="namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06">kNoIntegerVariable</a>;</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  }</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  </div>
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<div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#a3c6f3ae96a90c7fcef34dd0f1ce0297e"> 51</a></span>  LiteralIndex <a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#a3c6f3ae96a90c7fcef34dd0f1ce0297e">boolean_literal_index</a> = <a class="code" href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">kNoLiteralIndex</a>;</div>
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<div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#aee356429e37f0750e38ee17ae1464a00"> 52</a></span>  <a class="code" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> <a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#aee356429e37f0750e38ee17ae1464a00">integer_literal</a> = <a class="code" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a>();</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> };</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  </div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment">// Model struct that contains the search heuristics used to find a feasible</span></div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment">// solution to an integer problem.</span></div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment">// This is reset by ConfigureSearchHeuristics() and used by</span></div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment">// SolveIntegerProblem(), see below.</span></div>
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<div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_search_heuristics.html"> 60</a></span> <span class="keyword">struct </span><a class="code" href="structoperations__research_1_1sat_1_1_search_heuristics.html">SearchHeuristics</a> {</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="comment">// Decision and restart heuristics. The two vectors must be of the same size</span></div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="comment">// and restart_policies[i] will always be used in conjunction with</span></div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="comment">// decision_policies[i].</span></div>
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<div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c"> 64</a></span>  std::vector<std::function<<a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()>> <a class="code" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">decision_policies</a>;</div>
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<div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a0d0b8f29f3557e2ee84f53b45d817e02"> 65</a></span>  std::vector<std::function<bool()>> <a class="code" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a0d0b8f29f3557e2ee84f53b45d817e02">restart_policies</a>;</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  </div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="comment">// Index in the vectors above that indicate the current configuration.</span></div>
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<div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af2155539e87804108c670c32478e123d"> 68</a></span>  <span class="keywordtype">int</span> <a class="code" href="structoperations__research_1_1sat_1_1_search_heuristics.html#af2155539e87804108c670c32478e123d">policy_index</a>;</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  </div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="comment">// Two special decision functions that are constructed at loading time.</span></div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="comment">// These are used by ConfigureSearchHeuristics() to fill the policies above.</span></div>
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<div class="line"><a name="l00072"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a984249b5c2efe8f16e6942b54be739a5"> 72</a></span>  std::function<<a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a984249b5c2efe8f16e6942b54be739a5">fixed_search</a> = <span class="keyword">nullptr</span>;</div>
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<div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a3ef187fb1a44e4df4e66c2a59304000e"> 73</a></span>  std::function<<a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code" href="structoperations__research_1_1sat_1_1_search_heuristics.html#a3ef187fb1a44e4df4e66c2a59304000e">hint_search</a> = <span class="keyword">nullptr</span>;</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> };</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  </div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment">// Given a base "fixed_search" function that should mainly control in which</span></div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment">// order integer variables are lazily instantiated (and at what value), this</span></div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment">// uses the current solver parameters to set the SearchHeuristics class in the</span></div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment">// given model.</span></div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="keywordtype">void</span> <a class="code" href="namespaceoperations__research_1_1sat.html#a7ac1d9dc3254d77ade7bdbf984884b7e">ConfigureSearchHeuristics</a>(<a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  </div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment">// Callbacks that will be called when the search goes back to level 0.</span></div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment">// Callbacks should return false if the propagation fails.</span></div>
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<div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_level_zero_callback_helper.html"> 84</a></span> <span class="keyword">struct </span><a class="code" href="structoperations__research_1_1sat_1_1_level_zero_callback_helper.html">LevelZeroCallbackHelper</a> {</div>
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<div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_level_zero_callback_helper.html#ac008fdb20ed4a9c84c490d4cbff755ac"> 85</a></span>  std::vector<std::function<bool()>> <a class="code" href="structoperations__research_1_1sat_1_1_level_zero_callback_helper.html#ac008fdb20ed4a9c84c490d4cbff755ac">callbacks</a>;</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> };</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  </div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment">// Tries to find a feasible solution to the current model.</span></div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment">// This function continues from the current state of the solver and loop until</span></div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment">// all variables are instantiated (i.e. the next decision is kNoLiteralIndex) or</span></div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment">// a search limit is reached. It uses the heuristic from the SearchHeuristics</span></div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment">// class in the model to decide when to restart and what next decision to take.</span></div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment">// Each time a restart happen, this increment the policy index modulo the number</span></div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment">// of heuristics to act as a portfolio search.</span></div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <a class="code" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70b">SatSolver::Status</a> <a class="code" href="namespaceoperations__research_1_1sat.html#a8bea9a6a0de60c8fdab99ad7dfdf8498">SolveIntegerProblem</a>(<a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  </div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment">// Resets the solver to the given assumptions before calling</span></div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment">// SolveIntegerProblem().</span></div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <a class="code" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70b">SatSolver::Status</a> <a class="code" href="namespaceoperations__research_1_1sat.html#a17b20b0845d9e02829d417294aded36a">ResetAndSolveIntegerProblem</a>(</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keyword">const</span> std::vector<Literal>& assumptions, <a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  </div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment">// Only used in tests. Move to a test utility file.</span></div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="comment">// This configures the model SearchHeuristics with a simple default heuristic</span></div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment">// and then call ResetAndSolveIntegerProblem() without any assumptions.</span></div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <a class="code" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70b">SatSolver::Status</a> <a class="code" href="namespaceoperations__research_1_1sat.html#a48d1aae59a778d6f39609f9add7cd0a5">SolveIntegerProblemWithLazyEncoding</a>(<a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  </div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="comment">// Returns decision corresponding to var at its lower bound.</span></div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment">// Returns an invalid literal if the variable is fixed.</span></div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <a class="code" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> <a class="code" href="namespaceoperations__research_1_1sat.html#a304417ca7c3964cc928b771620b2dc53">AtMinValue</a>(IntegerVariable <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>* integer_trail);</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  </div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="comment">// If a variable appear in the objective, branch on its best objective value.</span></div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <a class="code" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> <a class="code" href="namespaceoperations__research_1_1sat.html#a71fa416b44768076a0e7dd7777ab433d">ChooseBestObjectiveValue</a>(IntegerVariable <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  </div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment">// Returns decision corresponding to var >= lb + max(1, (ub - lb) / 2). It also</span></div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment">// CHECKs that the variable is not fixed.</span></div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <a class="code" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> <a class="code" href="namespaceoperations__research_1_1sat.html#a3f4df9da99787316bfb5029b7a6b92b7">GreaterOrEqualToMiddleValue</a>(IntegerVariable <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>,</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <a class="code" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>* integer_trail);</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  </div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="comment">// This method first tries var <= value. If this does not reduce the domain it</span></div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment">// tries var >= value. If that also does not reduce the domain then returns</span></div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment">// an invalid literal.</span></div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <a class="code" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> <a class="code" href="namespaceoperations__research_1_1sat.html#a46cb4c07c4971a99724693260c92fd5b">SplitAroundGivenValue</a>(IntegerVariable <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, IntegerValue <a class="code" href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a>,</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  </div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment">// Returns decision corresponding to var <= round(lp_value). If the variable</span></div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment">// does not appear in the LP, this method returns an invalid literal.</span></div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <a class="code" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> <a class="code" href="namespaceoperations__research_1_1sat.html#ac0774a1df651b83339b00fee0bde1cd8">SplitAroundLpValue</a>(IntegerVariable <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  </div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="comment">// Returns decision corresponding to var <= best_solution[var]. If no solution</span></div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="comment">// has been found, this method returns a literal with kNoIntegerVariable. This</span></div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="comment">// was suggested in paper: "Solution-Based Phase Saving for CP" (2018) by Emir</span></div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="comment">// Demirovic, Geoffrey Chu, and Peter J. Stuckey.</span></div>
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<div class="line"><a name="l00136"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1sat.html#a872297a32bd1f4a91bbcebd1c47b3751"> 136</a></span> <a class="code" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a> <a class="code" href="namespaceoperations__research_1_1sat.html#a872297a32bd1f4a91bbcebd1c47b3751">SplitDomainUsingBestSolutionValue</a>(IntegerVariable <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>,</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  </div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment">// Decision heuristic for SolveIntegerProblemWithLazyEncoding(). Returns a</span></div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment">// function that will return the literal corresponding to the fact that the</span></div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment">// first currently non-fixed variable value is <= its min. The function will</span></div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="comment">// return kNoLiteralIndex if all the given variables are fixed.</span></div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="comment">// Note that this function will create the associated literal if needed.</span></div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> std::function<<a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code" href="namespaceoperations__research_1_1sat.html#a0b08971dbb223f77e7fc9c41a77fdc7b">FirstUnassignedVarAtItsMinHeuristic</a>(</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keyword">const</span> std::vector<IntegerVariable>& vars, <a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  </div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="comment">// Decision heuristic for SolveIntegerProblemWithLazyEncoding(). Like</span></div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="comment">// FirstUnassignedVarAtItsMinHeuristic() but the function will return the</span></div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="comment">// literal corresponding to the fact that the currently non-assigned variable</span></div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="comment">// with the lowest min has a value <= this min.</span></div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> std::function<<a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()></div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <a class="code" href="namespaceoperations__research_1_1sat.html#a4713f8fb7e1ccddece18a374886ad866">UnassignedVarWithLowestMinAtItsMinHeuristic</a>(</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keyword">const</span> std::vector<IntegerVariable>& vars, <a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  </div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="comment">// Set the first unassigned Literal/Variable to its value.</span></div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="comment">// TODO(user): This is currently quadratic as we scan all variables to find the</span></div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="comment">// first unassigned one. Fix. Note that this is also the case in many other</span></div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="comment">// heuristics and should be fixed.</span></div>
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<div class="line"><a name="l00161"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_boolean_or_integer_variable.html"> 161</a></span> <span class="keyword">struct </span><a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_variable.html">BooleanOrIntegerVariable</a> {</div>
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<div class="line"><a name="l00162"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_boolean_or_integer_variable.html#aa5d493d0ceaa64f8e71d9aa540db7d90"> 162</a></span>  BooleanVariable <a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_variable.html#aa5d493d0ceaa64f8e71d9aa540db7d90">bool_var</a> = <a class="code" href="namespaceoperations__research_1_1sat.html#add67896a84f6372a648154c5770a0ae0">kNoBooleanVariable</a>;</div>
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<div class="line"><a name="l00163"></a><span class="lineno"><a class="line" href="structoperations__research_1_1sat_1_1_boolean_or_integer_variable.html#ae5143331fa20cd81b3339d4279826439"> 163</a></span>  IntegerVariable <a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_variable.html#ae5143331fa20cd81b3339d4279826439">int_var</a> = <a class="code" href="namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06">kNoIntegerVariable</a>;</div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> };</div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> std::function<<a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code" href="namespaceoperations__research_1_1sat.html#a5c07862681284286ab67401730668f38">FollowHint</a>(</div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keyword">const</span> std::vector<BooleanOrIntegerVariable>& vars,</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">const</span> std::vector<IntegerValue>& values, <a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  </div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="comment">// Combines search heuristics in order: if the i-th one returns kNoLiteralIndex,</span></div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="comment">// ask the (i+1)-th. If every heuristic returned kNoLiteralIndex,</span></div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="comment">// returns kNoLiteralIndex.</span></div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> std::function<<a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code" href="namespaceoperations__research_1_1sat.html#abcf8d0c663710a1e395489e62de487b1">SequentialSearch</a>(</div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  std::vector<std::function<<a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()>> heuristics);</div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  </div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment">// Changes the value of the given decision by 'var_selection_heuristic'. We try</span></div>
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment">// to see if the decision is "associated" with an IntegerVariable, and if it is</span></div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment">// the case, we choose the new value by the first 'value_selection_heuristics'</span></div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment">// that is applicable. If none of the heuristics are applicable then the given</span></div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="comment">// decision by 'var_selection_heuristic' is returned.</span></div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> std::function<<a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code" href="namespaceoperations__research_1_1sat.html#afc647a54403bf1bedce9b09841748c91">SequentialValueSelection</a>(</div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  std::vector<std::function<<a class="code" href="structoperations__research_1_1sat_1_1_integer_literal.html">IntegerLiteral</a>(IntegerVariable)>></div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  value_selection_heuristics,</div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  std::function<<a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> var_selection_heuristic,</div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  </div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment">// Changes the value of the given decision by 'var_selection_heuristic'</span></div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="comment">// according to various value selection heuristics. Looks at the code to know</span></div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment">// exactly what heuristic we use.</span></div>
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> std::function<<a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code" href="namespaceoperations__research_1_1sat.html#a88ab44e20ce09e9942f6b8411452df27">IntegerValueSelectionHeuristic</a>(</div>
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  std::function<<a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> var_selection_heuristic,</div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  </div>
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="comment">// Returns the BooleanOrIntegerLiteral advised by the underliying SAT solver.</span></div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> std::function<<a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code" href="namespaceoperations__research_1_1sat.html#a8f18cefafff72d70f6e96ed3f2ef84aa">SatSolverHeuristic</a>(<a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  </div>
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="comment">// Gets the branching variable using pseudo costs and combines it with a value</span></div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment">// for branching.</span></div>
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> std::function<<a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()> <a class="code" href="namespaceoperations__research_1_1sat.html#aefab46ecc02eb059ed853ee0213be7fb">PseudoCost</a>(<a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  </div>
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<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="comment">// Returns true if the number of variables in the linearized part represent</span></div>
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="comment">// a large enough proportion of all the problem variables.</span></div>
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<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="keywordtype">bool</span> <a class="code" href="namespaceoperations__research_1_1sat.html#aeaaccdd218e3f0aa5c218d3a0cc5c3f1">LinearizedPartIsLarge</a>(<a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  </div>
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<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="comment">// A restart policy that restarts every k failures.</span></div>
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> std::function<bool()> <a class="code" href="namespaceoperations__research_1_1sat.html#a5fcdf1d56a24d096d0c381a9708d4fa9">RestartEveryKFailures</a>(<span class="keywordtype">int</span> k, <a class="code" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>* solver);</div>
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  </div>
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<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="comment">// A restart policy that uses the underlying sat solver's policy.</span></div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> std::function<bool()> <a class="code" href="namespaceoperations__research_1_1sat.html#a527a6ee26b7f573def70daf9b2a9e577">SatSolverRestartPolicy</a>(<a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  </div>
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment">// Concatenates each input_heuristic with a default heuristic that instantiate</span></div>
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<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="comment">// all the problem's Boolean variables, into a new vector.</span></div>
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<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> std::vector<std::function<<a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()>> <a class="code" href="namespaceoperations__research_1_1sat.html#a7e0c6e9c16089229f5ae7a34ec631604">CompleteHeuristics</a>(</div>
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keyword">const</span> std::vector<std::function<<a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()>>&</div>
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<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  incomplete_heuristics,</div>
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keyword">const</span> std::function<<a class="code" href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">BooleanOrIntegerLiteral</a>()>& completion_heuristic);</div>
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  </div>
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<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="comment">// Specialized search that will continuously probe Boolean variables and bounds</span></div>
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<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="comment">// of integer variables.</span></div>
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <a class="code" href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70b">SatSolver::Status</a> <a class="code" href="namespaceoperations__research_1_1sat.html#abb234c348ddabb307c1170b3e4c7f2b9">ContinuousProbing</a>(</div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keyword">const</span> std::vector<BooleanVariable>& bool_vars,</div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keyword">const</span> std::vector<IntegerVariable>& int_vars,</div>
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<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keyword">const</span> std::function<<span class="keywordtype">void</span>()>& feasible_solution_observer, <a class="code" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> } <span class="comment">// namespace sat</span></div>
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<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> } <span class="comment">// namespace operations_research</span></div>
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<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  </div>
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<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="preprocessor">#endif </span><span class="comment">// OR_TOOLS_SAT_INTEGER_SEARCH_H_</span></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html">operations_research::sat::IntegerTrail</a></div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00540">integer.h:540</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_model_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_model.html">operations_research::sat::Model</a></div><div class="ttdoc">Class that owns everything related to a particular optimization model.</div><div class="ttdef"><b>Definition:</b> <a href="sat_2model_8h_source.html#l00038">sat/model.h:38</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html">operations_research::sat::SatSolver</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00057">sat_solver.h:57</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a67a0db04d321a74b7e7fcfd3f1a3f70b"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a67a0db04d321a74b7e7fcfd3f1a3f70b">operations_research::sat::SatSolver::Status</a></div><div class="ttdeci">Status</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00180">sat_solver.h:180</a></div></div>
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<div class="ttc" id="ademon__profiler_8cc_html_a21edc7ca4cc5802c8779d68556bc09cf"><div class="ttname"><a href="demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf">value</a></div><div class="ttdeci">int64 value</div><div class="ttdef"><b>Definition:</b> <a href="demon__profiler_8cc_source.html#l00043">demon_profiler.cc:43</a></div></div>
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<div class="ttc" id="aexpr__array_8cc_html_a472a99923cbe11ae7b5a5d157d9ad465"><div class="ttname"><a href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a></div><div class="ttdeci">IntVar * var</div><div class="ttdef"><b>Definition:</b> <a href="expr__array_8cc_source.html#l01858">expr_array.cc:1858</a></div></div>
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<div class="ttc" id="agurobi__interface_8cc_html_a0728f23c9a47655d38e0bf1a2f200bcf"><div class="ttname"><a href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a></div><div class="ttdeci">GRBmodel * model</div><div class="ttdef"><b>Definition:</b> <a href="gurobi__interface_8cc_source.html#l00272">gurobi_interface.cc:272</a></div></div>
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<div class="ttc" id="ainteger_8h_html"><div class="ttname"><a href="integer_8h.html">integer.h</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a0b08971dbb223f77e7fc9c41a77fdc7b"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a0b08971dbb223f77e7fc9c41a77fdc7b">operations_research::sat::FirstUnassignedVarAtItsMinHeuristic</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> FirstUnassignedVarAtItsMinHeuristic(const std::vector< IntegerVariable > &vars, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00153">integer_search.cc:153</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a17b20b0845d9e02829d417294aded36a"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a17b20b0845d9e02829d417294aded36a">operations_research::sat::ResetAndSolveIntegerProblem</a></div><div class="ttdeci">SatSolver::Status ResetAndSolveIntegerProblem(const std::vector< Literal > &assumptions, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00891">integer_search.cc:891</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a2dbcb7017d468a17bdb30252af5c6c31"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a2dbcb7017d468a17bdb30252af5c6c31">operations_research::sat::kNoLiteralIndex</a></div><div class="ttdeci">const LiteralIndex kNoLiteralIndex(-1)</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a304417ca7c3964cc928b771620b2dc53"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a304417ca7c3964cc928b771620b2dc53">operations_research::sat::AtMinValue</a></div><div class="ttdeci">IntegerLiteral AtMinValue(IntegerVariable var, IntegerTrail *integer_trail)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00039">integer_search.cc:39</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a3f4df9da99787316bfb5029b7a6b92b7"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a3f4df9da99787316bfb5029b7a6b92b7">operations_research::sat::GreaterOrEqualToMiddleValue</a></div><div class="ttdeci">IntegerLiteral GreaterOrEqualToMiddleValue(IntegerVariable var, IntegerTrail *integer_trail)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00059">integer_search.cc:59</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a46cb4c07c4971a99724693260c92fd5b"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a46cb4c07c4971a99724693260c92fd5b">operations_research::sat::SplitAroundGivenValue</a></div><div class="ttdeci">IntegerLiteral SplitAroundGivenValue(IntegerVariable var, IntegerValue value, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00070">integer_search.cc:70</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a4713f8fb7e1ccddece18a374886ad866"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a4713f8fb7e1ccddece18a374886ad866">operations_research::sat::UnassignedVarWithLowestMinAtItsMinHeuristic</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> UnassignedVarWithLowestMinAtItsMinHeuristic(const std::vector< IntegerVariable > &vars, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00168">integer_search.cc:168</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a48d1aae59a778d6f39609f9add7cd0a5"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a48d1aae59a778d6f39609f9add7cd0a5">operations_research::sat::SolveIntegerProblemWithLazyEncoding</a></div><div class="ttdeci">SatSolver::Status SolveIntegerProblemWithLazyEncoding(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00909">integer_search.cc:909</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a527a6ee26b7f573def70daf9b2a9e577"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a527a6ee26b7f573def70daf9b2a9e577">operations_research::sat::SatSolverRestartPolicy</a></div><div class="ttdeci">std::function< bool()> SatSolverRestartPolicy(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00513">integer_search.cc:513</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a5bd8c44473618b7eafd33ba978db2f06"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a5bd8c44473618b7eafd33ba978db2f06">operations_research::sat::kNoIntegerVariable</a></div><div class="ttdeci">const IntegerVariable kNoIntegerVariable(-1)</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a5c07862681284286ab67401730668f38"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a5c07862681284286ab67401730668f38">operations_research::sat::FollowHint</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> FollowHint(const std::vector< BooleanOrIntegerVariable > &vars, const std::vector< IntegerValue > &values, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00469">integer_search.cc:469</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a5fcdf1d56a24d096d0c381a9708d4fa9"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a5fcdf1d56a24d096d0c381a9708d4fa9">operations_research::sat::RestartEveryKFailures</a></div><div class="ttdeci">std::function< bool()> RestartEveryKFailures(int k, SatSolver *solver)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00499">integer_search.cc:499</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a71fa416b44768076a0e7dd7777ab433d"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a71fa416b44768076a0e7dd7777ab433d">operations_research::sat::ChooseBestObjectiveValue</a></div><div class="ttdeci">IntegerLiteral ChooseBestObjectiveValue(IntegerVariable var, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00047">integer_search.cc:47</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a7ac1d9dc3254d77ade7bdbf984884b7e"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a7ac1d9dc3254d77ade7bdbf984884b7e">operations_research::sat::ConfigureSearchHeuristics</a></div><div class="ttdeci">void ConfigureSearchHeuristics(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00527">integer_search.cc:527</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a7e0c6e9c16089229f5ae7a34ec631604"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a7e0c6e9c16089229f5ae7a34ec631604">operations_research::sat::CompleteHeuristics</a></div><div class="ttdeci">std::vector< std::function< BooleanOrIntegerLiteral()> > CompleteHeuristics(const std::vector< std::function< BooleanOrIntegerLiteral()>> &incomplete_heuristics, const std::function< BooleanOrIntegerLiteral()> &completion_heuristic)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00639">integer_search.cc:639</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a872297a32bd1f4a91bbcebd1c47b3751"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a872297a32bd1f4a91bbcebd1c47b3751">operations_research::sat::SplitDomainUsingBestSolutionValue</a></div><div class="ttdeci">IntegerLiteral SplitDomainUsingBestSolutionValue(IntegerVariable var, Model *model)</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a88ab44e20ce09e9942f6b8411452df27"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a88ab44e20ce09e9942f6b8411452df27">operations_research::sat::IntegerValueSelectionHeuristic</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> IntegerValueSelectionHeuristic(std::function< BooleanOrIntegerLiteral()> var_selection_heuristic, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00259">integer_search.cc:259</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a8bea9a6a0de60c8fdab99ad7dfdf8498"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a8bea9a6a0de60c8fdab99ad7dfdf8498">operations_research::sat::SolveIntegerProblem</a></div><div class="ttdeci">SatSolver::Status SolveIntegerProblem(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00652">integer_search.cc:652</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a8f18cefafff72d70f6e96ed3f2ef84aa"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a8f18cefafff72d70f6e96ed3f2ef84aa">operations_research::sat::SatSolverHeuristic</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> SatSolverHeuristic(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00316">integer_search.cc:316</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_abb234c348ddabb307c1170b3e4c7f2b9"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#abb234c348ddabb307c1170b3e4c7f2b9">operations_research::sat::ContinuousProbing</a></div><div class="ttdeci">SatSolver::Status ContinuousProbing(const std::vector< BooleanVariable > &bool_vars, const std::vector< IntegerVariable > &int_vars, const std::function< void()> &feasible_solution_observer, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00926">integer_search.cc:926</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_abcf8d0c663710a1e395489e62de487b1"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#abcf8d0c663710a1e395489e62de487b1">operations_research::sat::SequentialSearch</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> SequentialSearch(std::vector< std::function< BooleanOrIntegerLiteral()>> heuristics)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00188">integer_search.cc:188</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_ac0774a1df651b83339b00fee0bde1cd8"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#ac0774a1df651b83339b00fee0bde1cd8">operations_research::sat::SplitAroundLpValue</a></div><div class="ttdeci">IntegerLiteral SplitAroundLpValue(IntegerVariable var, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00098">integer_search.cc:98</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_add67896a84f6372a648154c5770a0ae0"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#add67896a84f6372a648154c5770a0ae0">operations_research::sat::kNoBooleanVariable</a></div><div class="ttdeci">const BooleanVariable kNoBooleanVariable(-1)</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_aeaaccdd218e3f0aa5c218d3a0cc5c3f1"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#aeaaccdd218e3f0aa5c218d3a0cc5c3f1">operations_research::sat::LinearizedPartIsLarge</a></div><div class="ttdeci">bool LinearizedPartIsLarge(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00246">integer_search.cc:246</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_aefab46ecc02eb059ed853ee0213be7fb"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#aefab46ecc02eb059ed853ee0213be7fb">operations_research::sat::PseudoCost</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> PseudoCost(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00329">integer_search.cc:329</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_afc647a54403bf1bedce9b09841748c91"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#afc647a54403bf1bedce9b09841748c91">operations_research::sat::SequentialValueSelection</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> SequentialValueSelection(std::vector< std::function< IntegerLiteral(IntegerVariable)>> value_selection_heuristics, std::function< BooleanOrIntegerLiteral()> var_selection_heuristic, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8cc_source.html#l00199">integer_search.cc:199</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html"><div class="ttname"><a href="namespaceoperations__research.html">operations_research</a></div><div class="ttdoc">The vehicle routing library lets one model and solve generic vehicle routing problems ranging from th...</div><div class="ttdef"><b>Definition:</b> <a href="dense__doubly__linked__list_8h_source.html#l00021">dense_doubly_linked_list.h:21</a></div></div>
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<div class="ttc" id="apack_8cc_html_a750b5d744c39a06bfb13e6eb010e35d0"><div class="ttname"><a href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a></div><div class="ttdeci">int index</div><div class="ttdef"><b>Definition:</b> <a href="pack_8cc_source.html#l00508">pack.cc:508</a></div></div>
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<div class="ttc" id="asat__base_8h_html"><div class="ttname"><a href="sat__base_8h.html">sat_base.h</a></div></div>
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<div class="ttc" id="asat__solver_8h_html"><div class="ttname"><a href="sat__solver_8h.html">sat_solver.h</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_boolean_or_integer_literal_html"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html">operations_research::sat::BooleanOrIntegerLiteral</a></div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00039">integer_search.h:39</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_boolean_or_integer_literal_html_a3c6f3ae96a90c7fcef34dd0f1ce0297e"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#a3c6f3ae96a90c7fcef34dd0f1ce0297e">operations_research::sat::BooleanOrIntegerLiteral::boolean_literal_index</a></div><div class="ttdeci">LiteralIndex boolean_literal_index</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00051">integer_search.h:51</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_boolean_or_integer_literal_html_a706766402ca4c78519e6c10eb76c8db3"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#a706766402ca4c78519e6c10eb76c8db3">operations_research::sat::BooleanOrIntegerLiteral::BooleanOrIntegerLiteral</a></div><div class="ttdeci">BooleanOrIntegerLiteral(LiteralIndex index)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00041">integer_search.h:41</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_boolean_or_integer_literal_html_ae26b73bbf70dc88433be39df364ca7c1"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#ae26b73bbf70dc88433be39df364ca7c1">operations_research::sat::BooleanOrIntegerLiteral::HasValue</a></div><div class="ttdeci">bool HasValue() const</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00046">integer_search.h:46</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_boolean_or_integer_literal_html_ae524bf12eec388724545b7f47e3538ef"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#ae524bf12eec388724545b7f47e3538ef">operations_research::sat::BooleanOrIntegerLiteral::BooleanOrIntegerLiteral</a></div><div class="ttdeci">BooleanOrIntegerLiteral()</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00040">integer_search.h:40</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_boolean_or_integer_literal_html_aee356429e37f0750e38ee17ae1464a00"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#aee356429e37f0750e38ee17ae1464a00">operations_research::sat::BooleanOrIntegerLiteral::integer_literal</a></div><div class="ttdeci">IntegerLiteral integer_literal</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00052">integer_search.h:52</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_boolean_or_integer_literal_html_afcfb0c6902e66dba068a76719658550d"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_boolean_or_integer_literal.html#afcfb0c6902e66dba068a76719658550d">operations_research::sat::BooleanOrIntegerLiteral::BooleanOrIntegerLiteral</a></div><div class="ttdeci">BooleanOrIntegerLiteral(IntegerLiteral i_lit)</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00043">integer_search.h:43</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_boolean_or_integer_variable_html"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_boolean_or_integer_variable.html">operations_research::sat::BooleanOrIntegerVariable</a></div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00161">integer_search.h:161</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_boolean_or_integer_variable_html_aa5d493d0ceaa64f8e71d9aa540db7d90"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_boolean_or_integer_variable.html#aa5d493d0ceaa64f8e71d9aa540db7d90">operations_research::sat::BooleanOrIntegerVariable::bool_var</a></div><div class="ttdeci">BooleanVariable bool_var</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00162">integer_search.h:162</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_boolean_or_integer_variable_html_ae5143331fa20cd81b3339d4279826439"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_boolean_or_integer_variable.html#ae5143331fa20cd81b3339d4279826439">operations_research::sat::BooleanOrIntegerVariable::int_var</a></div><div class="ttdeci">IntegerVariable int_var</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00163">integer_search.h:163</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_integer_literal_html"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_integer_literal.html">operations_research::sat::IntegerLiteral</a></div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00153">integer.h:153</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_integer_literal_html_ab6516f556b715738034b30d290c40214"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_integer_literal.html#ab6516f556b715738034b30d290c40214">operations_research::sat::IntegerLiteral::var</a></div><div class="ttdeci">IntegerVariable var</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00189">integer.h:189</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_level_zero_callback_helper_html"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_level_zero_callback_helper.html">operations_research::sat::LevelZeroCallbackHelper</a></div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00084">integer_search.h:84</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_level_zero_callback_helper_html_ac008fdb20ed4a9c84c490d4cbff755ac"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_level_zero_callback_helper.html#ac008fdb20ed4a9c84c490d4cbff755ac">operations_research::sat::LevelZeroCallbackHelper::callbacks</a></div><div class="ttdeci">std::vector< std::function< bool()> > callbacks</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00085">integer_search.h:85</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_search_heuristics_html"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_search_heuristics.html">operations_research::sat::SearchHeuristics</a></div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00060">integer_search.h:60</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_search_heuristics_html_a0d0b8f29f3557e2ee84f53b45d817e02"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_search_heuristics.html#a0d0b8f29f3557e2ee84f53b45d817e02">operations_research::sat::SearchHeuristics::restart_policies</a></div><div class="ttdeci">std::vector< std::function< bool()> > restart_policies</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00065">integer_search.h:65</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_search_heuristics_html_a3ef187fb1a44e4df4e66c2a59304000e"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_search_heuristics.html#a3ef187fb1a44e4df4e66c2a59304000e">operations_research::sat::SearchHeuristics::hint_search</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> hint_search</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00073">integer_search.h:73</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_search_heuristics_html_a984249b5c2efe8f16e6942b54be739a5"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_search_heuristics.html#a984249b5c2efe8f16e6942b54be739a5">operations_research::sat::SearchHeuristics::fixed_search</a></div><div class="ttdeci">std::function< BooleanOrIntegerLiteral()> fixed_search</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00072">integer_search.h:72</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_search_heuristics_html_af2155539e87804108c670c32478e123d"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_search_heuristics.html#af2155539e87804108c670c32478e123d">operations_research::sat::SearchHeuristics::policy_index</a></div><div class="ttdeci">int policy_index</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00068">integer_search.h:68</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_search_heuristics_html_af925e41205032e143d718455bfeede3c"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_search_heuristics.html#af925e41205032e143d718455bfeede3c">operations_research::sat::SearchHeuristics::decision_policies</a></div><div class="ttdeci">std::vector< std::function< BooleanOrIntegerLiteral()> > decision_policies</div><div class="ttdef"><b>Definition:</b> <a href="integer__search_8h_source.html#l00064">integer_search.h:64</a></div></div>
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