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<a href="feasibility__pump_8cc.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">// Copyright 2010-2021 Google LLC</span></div>
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<div class="line"><a id="l00002" 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 id="l00003" 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 id="l00004" 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 id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment">//</span></div>
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<div class="line"><a id="l00006" 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 id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment">//</span></div>
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<div class="line"><a id="l00008" 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 id="l00009" 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 id="l00010" 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 id="l00011" 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 id="l00012" 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 id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include "<a class="code" href="feasibility__pump_8h.html">ortools/sat/feasibility_pump.h</a>"</span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> </div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include <cstdint></span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include <limits></span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include <vector></span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include "<a class="code" href="integral__types_8h.html">ortools/base/integral_types.h</a>"</span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include "<a class="code" href="lp__types_8h.html">ortools/lp_data/lp_types.h</a>"</span></div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include "<a class="code" href="cp__model_8pb_8h.html">ortools/sat/cp_model.pb.h</a>"</span></div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</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 id="l00024" name="l00024"></a><span class="lineno"> 24</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 id="l00025" name="l00025"></a><span class="lineno"> 25</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 id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include "<a class="code" href="saturated__arithmetic_8h.html">ortools/util/saturated_arithmetic.h</a>"</span></div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceoperations__research.html">operations_research</a> {</div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="keyword">namespace </span>sat {</div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> </div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="keyword">using</span> glop::ColIndex;</div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="keyword">using</span> <a class="code hl_enumeration" href="namespaceoperations__research_1_1glop.html#a0f6bd47b8956b59589718bd40b1cf8bc">glop::ConstraintStatus</a>;</div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="keyword">using</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">glop::Fractional</a>;</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="keyword">using</span> glop::RowIndex;</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> </div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="keyword">const</span> <span class="keywordtype">double</span> FeasibilityPump::kCpEpsilon = 1e-4;</div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> </div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a477d40d2455543bdf702f13fa36f4ddd"> 38</a></span><a class="code hl_function" href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a477d40d2455543bdf702f13fa36f4ddd">FeasibilityPump::FeasibilityPump</a>(<a class="code hl_class" href="classoperations__research_1_1sat_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>)</div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> : sat_parameters_(*(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_parameters.html">SatParameters</a>>())),</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> time_limit_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1_time_limit.html">TimeLimit</a>>()),</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> integer_trail_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_trail.html">IntegerTrail</a>>()),</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> trail_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_trail.html">Trail</a>>()),</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> integer_encoder_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_integer_encoder.html">IntegerEncoder</a>>()),</div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> incomplete_solutions_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->Mutable<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_shared_incomplete_solution_manager.html">SharedIncompleteSolutionManager</a>>()),</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> sat_solver_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_sat_solver.html">SatSolver</a>>()),</div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> domains_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->GetOrCreate<<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_integer_domains.html">IntegerDomains</a>>()),</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> mapping_(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->Get<<a class="code hl_class" href="classoperations__research_1_1sat_1_1_cp_model_mapping.html">CpModelMapping</a>>()) {</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="comment">// Tweak the default parameters to make the solve incremental.</span></div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <a class="code hl_class" href="classoperations__research_1_1glop_1_1_glop_parameters.html">glop::GlopParameters</a> <a class="code hl_variable" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>;</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="comment">// Note(user): Primal simplex does better here since we have a limit on</span></div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="comment">// simplex iterations. So dual simplex sometimes fails to find a LP feasible</span></div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="comment">// solution.</span></div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <a class="code hl_variable" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>.set_use_dual_simplex(<span class="keyword">false</span>);</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <a class="code hl_variable" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>.set_max_number_of_iterations(2000);</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> simplex_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_revised_simplex.html#ae7202d055b6b172a8a1da4f5b136f9ea">SetParameters</a>(<a class="code hl_variable" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>);</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#aa71d36872f416feaa853788a7a7a7ef8">Clear</a>();</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> integer_lp_.<a class="code hl_function" href="classabsl_1_1_strong_vector.html#ac8bb3912a3ce86b15842e79d0b421204">clear</a>();</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span>}</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> </div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a18206039e9f0c76f2b35907a4f6ea812"> 60</a></span><a class="code hl_function" href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a18206039e9f0c76f2b35907a4f6ea812">FeasibilityPump::~FeasibilityPump</a>() {</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(1) << <span class="stringliteral">"Feasibility Pump Total number of simplex iterations: "</span></div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> << total_num_simplex_iterations_;</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span>}</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> </div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_feasibility_pump.html#aaac2d8dee4d7fc8d5e9a1b1cfc3021bc"> 65</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_feasibility_pump.html#aaac2d8dee4d7fc8d5e9a1b1cfc3021bc">FeasibilityPump::AddLinearConstraint</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_linear_constraint.html">LinearConstraint</a>& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>) {</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="comment">// We still create the mirror variable right away though.</span></div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> : <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.vars) {</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> GetOrCreateMirrorVariable(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a7f1ac774d4646a83631f8117f4ea03f5">PositiveVariable</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>));</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> }</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> </div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> integer_lp_.<a class="code hl_function" href="classabsl_1_1_strong_vector.html#a9263000d449fdccb6cb70b303063e60b">push_back</a>(LinearConstraintInternal());</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> LinearConstraintInternal& new_ct = integer_lp_.<a class="code hl_function" href="classabsl_1_1_strong_vector.html#af71e6c1eccbc12e9339c00a86a981a43">back</a>();</div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> new_ct.lb = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.lb;</div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> new_ct.ub = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.ub;</div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keyword">const</span> <span class="keywordtype">int</span> size = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.vars.size();</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <a class="code hl_define" href="base_2logging_8h.html#ae4db23f10f5d4aad6d735f5a74cd6f8c">CHECK_LE</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.lb, <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.ub);</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < size; ++i) {</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="comment">// We only use positive variable inside this class.</span></div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.vars[i];</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> IntegerValue <a class="code hl_variable" href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a> = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.coeffs[i];</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keywordflow">if</span> (!<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ae2544d2a3a5ef4c78f8e5891f104ab41">VariableIsPositive</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>)) {</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22">NegationOf</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <a class="code hl_variable" href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a> = -<a class="code hl_variable" href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a>;</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> }</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> new_ct.terms.push_back({GetOrCreateMirrorVariable(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>), <a class="code hl_variable" href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a>});</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> }</div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="comment">// Important to keep lp_data_ "clean".</span></div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> std::sort(new_ct.terms.begin(), new_ct.terms.end());</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span>}</div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> </div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_feasibility_pump.html#ae384be06329c4c8f8fd62af7335dae2e"> 91</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_feasibility_pump.html#ae384be06329c4c8f8fd62af7335dae2e">FeasibilityPump::SetObjectiveCoefficient</a>(IntegerVariable ivar,</div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> IntegerValue <a class="code hl_variable" href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a>) {</div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> objective_is_defined_ = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keyword">const</span> IntegerVariable pos_var =</div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ae2544d2a3a5ef4c78f8e5891f104ab41">VariableIsPositive</a>(ivar) ? ivar : <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22">NegationOf</a>(ivar);</div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="keywordflow">if</span> (ivar != pos_var) <a class="code hl_variable" href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a> = -<a class="code hl_variable" href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a>;</div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> </div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keyword">const</span> <span class="keyword">auto</span> it = mirror_lp_variable_.find(pos_var);</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="keywordflow">if</span> (it == mirror_lp_variable_.end()) <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="keyword">const</span> ColIndex <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a> = it->second;</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> integer_objective_.push_back({<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>, <a class="code hl_variable" href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a>});</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> objective_infinity_norm_ =</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(objective_infinity_norm_, <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1e30e51173c7e43a8c0b4668d5e3f050">IntTypeAbs</a>(<a class="code hl_variable" href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a>));</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span>}</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> </div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span>ColIndex FeasibilityPump::GetOrCreateMirrorVariable(</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> IntegerVariable positive_variable) {</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <a class="code hl_define" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ae2544d2a3a5ef4c78f8e5891f104ab41">VariableIsPositive</a>(positive_variable));</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> </div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keyword">const</span> <span class="keyword">auto</span> it = mirror_lp_variable_.find(positive_variable);</div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <span class="keywordflow">if</span> (it == mirror_lp_variable_.end()) {</div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keyword">const</span> <span class="keywordtype">int</span> model_var =</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> mapping_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_mapping.html#a148597d78e10112b7e5e1f778de0410f">GetProtoVariableFromIntegerVariable</a>(positive_variable);</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> model_vars_size_ = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(model_vars_size_, model_var + 1);</div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> </div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="keyword">const</span> ColIndex <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>(integer_variables_.size());</div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> mirror_lp_variable_[positive_variable] = <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>;</div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> integer_variables_.push_back(positive_variable);</div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> var_is_binary_.push_back(<span class="keyword">false</span>);</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> lp_solution_.push_back(std::numeric_limits<double>::infinity());</div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> integer_solution_.push_back(0);</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> </div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>;</div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> }</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keywordflow">return</span> it->second;</div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span>}</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> </div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span><span class="keywordtype">void</span> FeasibilityPump::PrintStats() {</div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="keywordflow">if</span> (lp_solution_is_set_) {</div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(2) << <span class="stringliteral">"Fractionality: "</span> << lp_solution_fractionality_;</div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(2) << <span class="stringliteral">"Fractionality: NA"</span>;</div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(2) << <span class="stringliteral">"simplex status: "</span> << simplex_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_revised_simplex.html#a938b612b6f9885a417fda1bf886f4b39">GetProblemStatus</a>();</div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> }</div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> </div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keywordflow">if</span> (integer_solution_is_set_) {</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(2) << <span class="stringliteral">"#Infeasible const: "</span> << num_infeasible_constraints_;</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(2) << <span class="stringliteral">"Infeasibility: "</span> << integer_solution_infeasibility_;</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(2) << <span class="stringliteral">"Infeasibility: NA"</span>;</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> }</div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span>}</div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> </div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a942f29030f08426e7e318204e987e2f7"> 144</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a942f29030f08426e7e318204e987e2f7">FeasibilityPump::Solve</a>() {</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> <span class="keywordflow">if</span> (lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871">num_variables</a>() == 0) {</div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> InitializeWorkingLP();</div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> }</div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> UpdateBoundsOfLpVariables();</div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> lp_solution_is_set_ = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> integer_solution_is_set_ = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> </div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="comment">// Restore the original objective</span></div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="keywordflow">for</span> (ColIndex <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>(0); <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a> < lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871">num_variables</a>(); ++<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>) {</div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#ab5af7f232cddcd91f70be84c0d398ba9">SetObjectiveCoefficient</a>(<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>, 0.0);</div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> }</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& term : integer_objective_) {</div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#ab5af7f232cddcd91f70be84c0d398ba9">SetObjectiveCoefficient</a>(term.first, <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aed77a1a7675c2f8568529a5a16247ec1">ToDouble</a>(term.second));</div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> }</div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> </div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> mixing_factor_ = 1.0;</div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < max_fp_iterations_; ++i) {</div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="keywordflow">if</span> (time_limit_-><a class="code hl_function" href="classoperations__research_1_1_time_limit.html#a810d5f7aaf80cc09cf5a094e20c1aaca">LimitReached</a>()) <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> L1DistanceMinimize();</div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="keywordflow">if</span> (!SolveLp()) <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> <span class="keywordflow">if</span> (lp_solution_is_integer_) <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="keywordflow">if</span> (!Round()) <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> <span class="comment">// We don't end this loop if the integer solutions is feasible in hope to</span></div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <span class="comment">// get better solution.</span></div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keywordflow">if</span> (integer_solution_is_feasible_) MaybePushToRepo();</div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> }</div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> </div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> <span class="keywordflow">if</span> (model_is_unsat_) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> </div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> PrintStats();</div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> MaybePushToRepo();</div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span>}</div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> </div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span><span class="keywordtype">void</span> FeasibilityPump::MaybePushToRepo() {</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <span class="keywordflow">if</span> (incomplete_solutions_ == <span class="keyword">nullptr</span>) <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> </div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> std::vector<double> lp_solution(model_vars_size_,</div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> std::numeric_limits<double>::infinity());</div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="comment">// TODO(user): Consider adding solutions that have low fractionality.</span></div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <span class="keywordflow">if</span> (lp_solution_is_integer_) {</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="comment">// Fill the solution using LP solution values.</span></div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> IntegerVariable positive_var : integer_variables_) {</div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> <span class="keyword">const</span> <span class="keywordtype">int</span> model_var =</div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> mapping_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_mapping.html#a148597d78e10112b7e5e1f778de0410f">GetProtoVariableFromIntegerVariable</a>(positive_var);</div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <span class="keywordflow">if</span> (model_var >= 0 && model_var < model_vars_size_) {</div>
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> lp_solution[model_var] = <a class="code hl_function" href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a680158afc869b1a617ca173fa0033202">GetLPSolutionValue</a>(positive_var);</div>
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> }</div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> }</div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> incomplete_solutions_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_shared_incomplete_solution_manager.html#a058ba66ef63b5c36a5586b0151a75609">AddNewSolution</a>(lp_solution);</div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> }</div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> </div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> <span class="keywordflow">if</span> (integer_solution_is_feasible_) {</div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> <span class="comment">// Fill the solution using Integer solution values.</span></div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> IntegerVariable positive_var : integer_variables_) {</div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> <span class="keyword">const</span> <span class="keywordtype">int</span> model_var =</div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> mapping_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_cp_model_mapping.html#a148597d78e10112b7e5e1f778de0410f">GetProtoVariableFromIntegerVariable</a>(positive_var);</div>
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<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> <span class="keywordflow">if</span> (model_var >= 0 && model_var < model_vars_size_) {</div>
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> lp_solution[model_var] = <a class="code hl_function" href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a9ad847669329f6fbccf8e4553adc7dee">GetIntegerSolutionValue</a>(positive_var);</div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> }</div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> }</div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> incomplete_solutions_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_shared_incomplete_solution_manager.html#a058ba66ef63b5c36a5586b0151a75609">AddNewSolution</a>(lp_solution);</div>
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> }</div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span>}</div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> </div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span><span class="comment">// ----------------------------------------------------------------</span></div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span><span class="comment">// -------------------LPSolving------------------------------------</span></div>
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span><span class="comment">// ----------------------------------------------------------------</span></div>
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> </div>
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<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span><span class="keywordtype">void</span> FeasibilityPump::InitializeWorkingLP() {</div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#aa71d36872f416feaa853788a7a7a7ef8">Clear</a>();</div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <span class="comment">// Create variables.</span></div>
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<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < integer_variables_.size(); ++i) {</div>
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<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> <a class="code hl_define" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(ColIndex(i), lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a695ac3d8db5a986f572711f2ef3a6a39">CreateNewVariable</a>());</div>
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<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a7ddcdc56f25d075e18d62ddbcd3389b2">SetVariableType</a>(ColIndex(i),</div>
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<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> <a class="code hl_enumvalue" href="classoperations__research_1_1glop_1_1_linear_program.html#ac62972ff1b21a037e56530cde67309aba5d5cd46919fa987731fb2edefe0f2a0c">glop::LinearProgram::VariableType::INTEGER</a>);</div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> }</div>
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<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> </div>
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<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> <span class="comment">// Add constraints.</span></div>
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<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> LinearConstraintInternal& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> : integer_lp_) {</div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> <span class="keyword">const</span> <a class="code hl_typedef" href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a67a7327915e66c0514cfa465a0475be1">ConstraintIndex</a> <a class="code hl_variable" href="markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52">row</a> = lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#ad9d564651057c77b3f2ca1293134557f">CreateNewConstraint</a>();</div>
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<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a62b98dec38b6506442f9fc63f1a9b88f">SetConstraintBounds</a>(<a class="code hl_variable" href="markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52">row</a>, <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aed77a1a7675c2f8568529a5a16247ec1">ToDouble</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.lb), <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aed77a1a7675c2f8568529a5a16247ec1">ToDouble</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.ub));</div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& term : <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.terms) {</div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a2d695f450ae446d5d9c225b991f8d88e">SetCoefficient</a>(<a class="code hl_variable" href="markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52">row</a>, term.first, <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aed77a1a7675c2f8568529a5a16247ec1">ToDouble</a>(term.second));</div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> }</div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> }</div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> </div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> <span class="comment">// Add objective.</span></div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& term : integer_objective_) {</div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#ab5af7f232cddcd91f70be84c0d398ba9">SetObjectiveCoefficient</a>(term.first, <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aed77a1a7675c2f8568529a5a16247ec1">ToDouble</a>(term.second));</div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> }</div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> </div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_vars = integer_variables_.size();</div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_vars; i++) {</div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> <span class="keyword">const</span> IntegerVariable cp_var = integer_variables_[i];</div>
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<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> <span class="keyword">const</span> <span class="keywordtype">double</span> lb = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aed77a1a7675c2f8568529a5a16247ec1">ToDouble</a>(integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#aa68cc40c827bff2fb311040e2b848f9b">LevelZeroLowerBound</a>(cp_var));</div>
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<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> <span class="keyword">const</span> <span class="keywordtype">double</span> ub = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aed77a1a7675c2f8568529a5a16247ec1">ToDouble</a>(integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a9ab880b5e67213a0607c5c3935da9f08">LevelZeroUpperBound</a>(cp_var));</div>
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<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093">SetVariableBounds</a>(ColIndex(i), lb, ub);</div>
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<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> }</div>
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> </div>
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<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> objective_normalization_factor_ = 0.0;</div>
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<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1glop.html#a2b83a25cb4fd203c57a7155699fab246">glop::ColIndexVector</a> integer_variables;</div>
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<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> <span class="keyword">const</span> ColIndex num_cols = lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871">num_variables</a>();</div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> <span class="keywordflow">for</span> (ColIndex <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a> : lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a609bcb18cec39c7c43dd7a6d3a51ba81">IntegerVariablesList</a>()) {</div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> var_is_binary_[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>.value()] = lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#ab8efe00bb016665606d522a42543cd96">IsVariableBinary</a>(<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>);</div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> <span class="keywordflow">if</span> (!var_is_binary_[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>.value()]) {</div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> integer_variables.push_back(<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>);</div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> }</div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> </div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> <span class="comment">// The aim of this normalization value is to compute a coefficient of the</span></div>
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<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> <span class="comment">// d_i variables that should be minimized.</span></div>
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<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> objective_normalization_factor_ +=</div>
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<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> std::abs(lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a6137c2df856cf2634f9bb259d2aace2b">GetObjectiveCoefficientForMinimizationVersion</a>(<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>));</div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> }</div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> <a class="code hl_define" href="base_2logging_8h.html#a7e03ec13560fa94a8fea569960d7efc6">CHECK_GT</a>(lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a609bcb18cec39c7c43dd7a6d3a51ba81">IntegerVariablesList</a>().size(), 0);</div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> objective_normalization_factor_ =</div>
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<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> objective_normalization_factor_ / lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a609bcb18cec39c7c43dd7a6d3a51ba81">IntegerVariablesList</a>().size();</div>
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<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> </div>
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<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> <span class="keywordflow">if</span> (!integer_variables.empty()) {</div>
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<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> <span class="comment">// Update the LpProblem with norm variables and constraints.</span></div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> norm_variables_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c">assign</a>(num_cols, ColIndex(-1));</div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> norm_lhs_constraints_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c">assign</a>(num_cols, RowIndex(-1));</div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> norm_rhs_constraints_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c">assign</a>(num_cols, RowIndex(-1));</div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> <span class="comment">// For each integer non-binary variable x_i we introduce one new variable</span></div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> <span class="comment">// d_i subject to two new constraints:</span></div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> <span class="comment">// d_i - x_i >= -round(x'_i)</span></div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> <span class="comment">// d_i + x_i >= +round(x'_i)</span></div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> <span class="comment">// That's round(x'_i) - d_i <= x_i <= round(x'_i) + d_i, where d_i is an</span></div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> <span class="comment">// unbounded non-negative, and x'_i is the value of variable i from the</span></div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> <span class="comment">// previous solution obtained during the projection step. Consequently</span></div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> <span class="comment">// coefficients of the constraints are set here, but bounds of the</span></div>
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> <span class="comment">// constraints are updated at each iteration of the feasibility pump. Also</span></div>
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> <span class="comment">// coefficients of the objective are set here: x_i's are not present in the</span></div>
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> <span class="comment">// objective (i.e., coefficients set to 0.0), and d_i's are present in the</span></div>
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> <span class="comment">// objective with coefficients set to 1.0.</span></div>
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<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> <span class="comment">// Note that the treatment of integer non-binary variables is different</span></div>
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> <span class="comment">// from the treatment of binary variables. Binary variables do not impose</span></div>
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<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> <span class="comment">// any extra variables, nor extra constraints, but their objective</span></div>
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<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> <span class="comment">// coefficients are changed in the linear projection steps.</span></div>
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<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> ColIndex <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a> : integer_variables) {</div>
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<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> <span class="keyword">const</span> ColIndex norm_variable = lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a695ac3d8db5a986f572711f2ef3a6a39">CreateNewVariable</a>();</div>
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<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> norm_variables_[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>] = norm_variable;</div>
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<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093">SetVariableBounds</a>(norm_variable, 0.0, <a class="code hl_variable" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">glop::kInfinity</a>);</div>
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<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> <span class="keyword">const</span> RowIndex row_a = lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#ad9d564651057c77b3f2ca1293134557f">CreateNewConstraint</a>();</div>
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<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> norm_lhs_constraints_[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>] = row_a;</div>
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<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a2d695f450ae446d5d9c225b991f8d88e">SetCoefficient</a>(row_a, norm_variable, 1.0);</div>
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<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a2d695f450ae446d5d9c225b991f8d88e">SetCoefficient</a>(row_a, <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>, -1.0);</div>
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<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> <span class="keyword">const</span> RowIndex row_b = lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#ad9d564651057c77b3f2ca1293134557f">CreateNewConstraint</a>();</div>
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<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> norm_rhs_constraints_[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>] = row_b;</div>
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<div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a2d695f450ae446d5d9c225b991f8d88e">SetCoefficient</a>(row_b, norm_variable, 1.0);</div>
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<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a2d695f450ae446d5d9c225b991f8d88e">SetCoefficient</a>(row_b, <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>, 1.0);</div>
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<div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span> }</div>
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<div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span> }</div>
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<div class="line"><a id="l00298" name="l00298"></a><span class="lineno"> 298</span> </div>
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<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span> scaler_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_lp_scaling_helper.html#a306cb123e8da242a6daf1c397dfe6e73">Scale</a>(&lp_data_);</div>
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<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#aa23a76f0f582369176688b458cda07dc">AddSlackVariablesWhereNecessary</a>(</div>
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<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span> <span class="comment">/*detect_integer_constraints=*/</span><span class="keyword">false</span>);</div>
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<div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span>}</div>
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<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> </div>
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<div class="line"><a id="l00304" name="l00304"></a><span class="lineno"> 304</span><span class="keywordtype">void</span> FeasibilityPump::L1DistanceMinimize() {</div>
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<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> std::vector<double> new_obj_coeffs(lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871">num_variables</a>().value(), 0.0);</div>
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<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> </div>
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<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> <span class="comment">// Set the original subobjective. The coefficients are scaled by mixing factor</span></div>
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<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> <span class="comment">// and the offset remains at 0 (because it does not affect the solution).</span></div>
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<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> <span class="keyword">const</span> ColIndex num_cols(lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a977f52b2e6fa6e9d6db8d8ac9cbf33c4">objective_coefficients</a>().<a class="code hl_function" href="classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5">size</a>());</div>
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<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> <span class="keywordflow">for</span> (ColIndex <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>(0); <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a> < num_cols; ++<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>) {</div>
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<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> new_obj_coeffs[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>.value()] =</div>
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<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> mixing_factor_ * lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a977f52b2e6fa6e9d6db8d8ac9cbf33c4">objective_coefficients</a>()[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>];</div>
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<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> }</div>
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<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> </div>
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<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> <span class="comment">// Set the norm subobjective. The coefficients are scaled by 1 - mixing factor</span></div>
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<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> <span class="comment">// and the offset remains at 0 (because it does not affect the solution).</span></div>
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<div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> ColIndex <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a> : lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a609bcb18cec39c7c43dd7a6d3a51ba81">IntegerVariablesList</a>()) {</div>
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<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> <span class="keywordflow">if</span> (var_is_binary_[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>.value()]) {</div>
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<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> objective_coefficient =</div>
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<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span> mixing_factor_ * lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a977f52b2e6fa6e9d6db8d8ac9cbf33c4">objective_coefficients</a>()[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>] +</div>
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<div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> (1 - mixing_factor_) * objective_normalization_factor_ *</div>
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<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> (1 - 2 * integer_solution_[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>.value()]);</div>
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<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span> new_obj_coeffs[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>.value()] = objective_coefficient;</div>
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<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> } <span class="keywordflow">else</span> { <span class="comment">// The variable is integer.</span></div>
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<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> <span class="comment">// Update the bounds of the constraints added in</span></div>
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<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> <span class="comment">// InitializeIntegerVariables() (see there for more details):</span></div>
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<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> <span class="comment">// d_i - x_i >= -round(x'_i)</span></div>
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<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> <span class="comment">// d_i + x_i >= +round(x'_i)</span></div>
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<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> </div>
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<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> <span class="comment">// TODO(user): We change both the objective and the bounds, thus</span></div>
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<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> <span class="comment">// breaking the incrementality. Handle integer variables differently,</span></div>
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<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> <span class="comment">// e.g., intensify rounding, or use soft fixing from: Fischetti, Lodi,</span></div>
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<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> <span class="comment">// "Local Branching", Math Program Ser B 98:23-47 (2003).</span></div>
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<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">Fractional</a> objective_coefficient =</div>
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<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> (1 - mixing_factor_) * objective_normalization_factor_;</div>
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<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> new_obj_coeffs[norm_variables_[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>].value()] = objective_coefficient;</div>
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<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> <span class="comment">// At this point, constraint bounds have already been transformed into</span></div>
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<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> <span class="comment">// bounds of slack variables. Instead of updating the constraints, we need</span></div>
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<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> <span class="comment">// to update the slack variables corresponding to them.</span></div>
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<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> <span class="keyword">const</span> ColIndex norm_lhs_slack_variable =</div>
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<div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a48de416333220c0bea7759c5aa53ee14">GetSlackVariable</a>(norm_lhs_constraints_[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>]);</div>
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<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span> <span class="keyword">const</span> <span class="keywordtype">double</span> lhs_scaling_factor =</div>
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<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> scaler_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_lp_scaling_helper.html#a5eb3e38eae8f5143d627e8c85aff8cd7">VariableScalingFactor</a>(norm_lhs_slack_variable);</div>
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<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093">SetVariableBounds</a>(</div>
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<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> norm_lhs_slack_variable, -<a class="code hl_variable" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">glop::kInfinity</a>,</div>
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<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> lhs_scaling_factor * integer_solution_[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>.value()]);</div>
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<div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> <span class="keyword">const</span> ColIndex norm_rhs_slack_variable =</div>
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<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a48de416333220c0bea7759c5aa53ee14">GetSlackVariable</a>(norm_rhs_constraints_[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>]);</div>
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<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span> <span class="keyword">const</span> <span class="keywordtype">double</span> rhs_scaling_factor =</div>
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<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> scaler_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_lp_scaling_helper.html#a5eb3e38eae8f5143d627e8c85aff8cd7">VariableScalingFactor</a>(norm_rhs_slack_variable);</div>
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<div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093">SetVariableBounds</a>(</div>
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<div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span> norm_rhs_slack_variable, -<a class="code hl_variable" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">glop::kInfinity</a>,</div>
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<div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> -rhs_scaling_factor * integer_solution_[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>.value()]);</div>
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<div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span> }</div>
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<div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span> }</div>
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<div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span> <span class="keywordflow">for</span> (ColIndex <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>(0); <a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a> < lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871">num_variables</a>(); ++<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>) {</div>
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<div class="line"><a id="l00357" name="l00357"></a><span class="lineno"> 357</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#ab5af7f232cddcd91f70be84c0d398ba9">SetObjectiveCoefficient</a>(<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>, new_obj_coeffs[<a class="code hl_variable" href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a>.value()]);</div>
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<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span> }</div>
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<div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> <span class="comment">// TODO(user): Tune this or expose as parameter.</span></div>
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<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> mixing_factor_ *= 0.8;</div>
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<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span>}</div>
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<div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span> </div>
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<div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span><span class="keywordtype">bool</span> FeasibilityPump::SolveLp() {</div>
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<div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_vars = integer_variables_.size();</div>
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<div class="line"><a id="l00365" name="l00365"></a><span class="lineno"> 365</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(3) << <span class="stringliteral">"LP relaxation: "</span> << lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#adcc58612f6a1dc35ff3ffdb34188f299">GetDimensionString</a>() << <span class="stringliteral">"."</span>;</div>
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<div class="line"><a id="l00366" name="l00366"></a><span class="lineno"> 366</span> </div>
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<div class="line"><a id="l00367" name="l00367"></a><span class="lineno"> 367</span> <span class="keyword">const</span> <span class="keyword">auto</span> <a class="code hl_variable" href="g__gurobi_8cc.html#a2237393c7ae7ad7344c9885066d5ab6d">status</a> = simplex_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_revised_simplex.html#a866a68af5afd0355fb348f7a59eeff9e">Solve</a>(lp_data_, time_limit_);</div>
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<div class="line"><a id="l00368" name="l00368"></a><span class="lineno"> 368</span> total_num_simplex_iterations_ += simplex_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_revised_simplex.html#ad8a718ceea92060a7f7118e2bccf4fbc">GetNumberOfIterations</a>();</div>
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<div class="line"><a id="l00369" name="l00369"></a><span class="lineno"> 369</span> <span class="keywordflow">if</span> (!<a class="code hl_variable" href="g__gurobi_8cc.html#a2237393c7ae7ad7344c9885066d5ab6d">status</a>.ok()) {</div>
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<div class="line"><a id="l00370" name="l00370"></a><span class="lineno"> 370</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(1) << <span class="stringliteral">"The LP solver encountered an error: "</span> << <a class="code hl_variable" href="g__gurobi_8cc.html#a2237393c7ae7ad7344c9885066d5ab6d">status</a>.error_message();</div>
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<div class="line"><a id="l00371" name="l00371"></a><span class="lineno"> 371</span> simplex_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_revised_simplex.html#ace96e115f468d752a2fcfeea901b0f8a">ClearStateForNextSolve</a>();</div>
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<div class="line"><a id="l00372" name="l00372"></a><span class="lineno"> 372</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span> }</div>
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<div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span> </div>
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<div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span> <span class="comment">// TODO(user): This shouldn't really happen except if the problem is UNSAT.</span></div>
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<div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span> <span class="comment">// But we can't just rely on a potentially imprecise LP to close the problem.</span></div>
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<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> <span class="comment">// The rest of the solver should do that with exact precision.</span></div>
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<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(3) << <span class="stringliteral">"simplex status: "</span> << simplex_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_revised_simplex.html#a938b612b6f9885a417fda1bf886f4b39">GetProblemStatus</a>();</div>
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<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span> <span class="keywordflow">if</span> (simplex_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_revised_simplex.html#a938b612b6f9885a417fda1bf886f4b39">GetProblemStatus</a>() == <a class="code hl_enumvalue" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493a7850fcfea005b86b2a3fa0d4293c5ee0">glop::ProblemStatus::PRIMAL_INFEASIBLE</a>) {</div>
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<div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span> }</div>
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<div class="line"><a id="l00382" name="l00382"></a><span class="lineno"> 382</span> </div>
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<div class="line"><a id="l00383" name="l00383"></a><span class="lineno"> 383</span> lp_solution_fractionality_ = 0.0;</div>
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<div class="line"><a id="l00384" name="l00384"></a><span class="lineno"> 384</span> <span class="keywordflow">if</span> (simplex_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_revised_simplex.html#a938b612b6f9885a417fda1bf886f4b39">GetProblemStatus</a>() == <a class="code hl_enumvalue" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493af00c8dbdd6e1f11bdae06be94277d293">glop::ProblemStatus::OPTIMAL</a> ||</div>
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<div class="line"><a id="l00385" name="l00385"></a><span class="lineno"> 385</span> simplex_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_revised_simplex.html#a938b612b6f9885a417fda1bf886f4b39">GetProblemStatus</a>() == <a class="code hl_enumvalue" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493a57ad14e7a035f33c8ba6c0ea9ea23caa">glop::ProblemStatus::DUAL_FEASIBLE</a> ||</div>
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<div class="line"><a id="l00386" name="l00386"></a><span class="lineno"> 386</span> simplex_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_revised_simplex.html#a938b612b6f9885a417fda1bf886f4b39">GetProblemStatus</a>() == <a class="code hl_enumvalue" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493a2dcc8f5d91cb2aa2065b8305bf2d5cbd">glop::ProblemStatus::PRIMAL_FEASIBLE</a> ||</div>
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<div class="line"><a id="l00387" name="l00387"></a><span class="lineno"> 387</span> simplex_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_revised_simplex.html#a938b612b6f9885a417fda1bf886f4b39">GetProblemStatus</a>() == <a class="code hl_enumvalue" href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493a0beacd9ca195de65e685252f1b46b954">glop::ProblemStatus::IMPRECISE</a>) {</div>
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<div class="line"><a id="l00388" name="l00388"></a><span class="lineno"> 388</span> lp_solution_is_set_ = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00389" name="l00389"></a><span class="lineno"> 389</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_vars; i++) {</div>
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<div class="line"><a id="l00390" name="l00390"></a><span class="lineno"> 390</span> <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> = GetVariableValueAtCpScale(ColIndex(i));</div>
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<div class="line"><a id="l00391" name="l00391"></a><span class="lineno"> 391</span> lp_solution_[i] = <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>;</div>
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<div class="line"><a id="l00392" name="l00392"></a><span class="lineno"> 392</span> lp_solution_fractionality_ = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(</div>
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<div class="line"><a id="l00393" name="l00393"></a><span class="lineno"> 393</span> lp_solution_fractionality_, std::abs(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> - std::round(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>)));</div>
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<div class="line"><a id="l00394" name="l00394"></a><span class="lineno"> 394</span> }</div>
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<div class="line"><a id="l00395" name="l00395"></a><span class="lineno"> 395</span> </div>
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<div class="line"><a id="l00396" name="l00396"></a><span class="lineno"> 396</span> <span class="comment">// Compute the objective value.</span></div>
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<div class="line"><a id="l00397" name="l00397"></a><span class="lineno"> 397</span> lp_objective_ = 0;</div>
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<div class="line"><a id="l00398" name="l00398"></a><span class="lineno"> 398</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& term : integer_objective_) {</div>
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<div class="line"><a id="l00399" name="l00399"></a><span class="lineno"> 399</span> lp_objective_ += lp_solution_[term.first.value()] * term.second.value();</div>
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<div class="line"><a id="l00400" name="l00400"></a><span class="lineno"> 400</span> }</div>
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<div class="line"><a id="l00401" name="l00401"></a><span class="lineno"> 401</span> lp_solution_is_integer_ = lp_solution_fractionality_ < kCpEpsilon;</div>
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<div class="line"><a id="l00402" name="l00402"></a><span class="lineno"> 402</span> }</div>
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<div class="line"><a id="l00403" name="l00403"></a><span class="lineno"> 403</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00404" name="l00404"></a><span class="lineno"> 404</span>}</div>
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<div class="line"><a id="l00405" name="l00405"></a><span class="lineno"> 405</span> </div>
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<div class="line"><a id="l00406" name="l00406"></a><span class="lineno"> 406</span><span class="keywordtype">void</span> FeasibilityPump::UpdateBoundsOfLpVariables() {</div>
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<div class="line"><a id="l00407" name="l00407"></a><span class="lineno"> 407</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_vars = integer_variables_.size();</div>
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<div class="line"><a id="l00408" name="l00408"></a><span class="lineno"> 408</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_vars; i++) {</div>
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<div class="line"><a id="l00409" name="l00409"></a><span class="lineno"> 409</span> <span class="keyword">const</span> IntegerVariable cp_var = integer_variables_[i];</div>
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<div class="line"><a id="l00410" name="l00410"></a><span class="lineno"> 410</span> <span class="keyword">const</span> <span class="keywordtype">double</span> lb = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aed77a1a7675c2f8568529a5a16247ec1">ToDouble</a>(integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#aa68cc40c827bff2fb311040e2b848f9b">LevelZeroLowerBound</a>(cp_var));</div>
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<div class="line"><a id="l00411" name="l00411"></a><span class="lineno"> 411</span> <span class="keyword">const</span> <span class="keywordtype">double</span> ub = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aed77a1a7675c2f8568529a5a16247ec1">ToDouble</a>(integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a9ab880b5e67213a0607c5c3935da9f08">LevelZeroUpperBound</a>(cp_var));</div>
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<div class="line"><a id="l00412" name="l00412"></a><span class="lineno"> 412</span> <span class="keyword">const</span> <span class="keywordtype">double</span> factor = scaler_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_lp_scaling_helper.html#a5eb3e38eae8f5143d627e8c85aff8cd7">VariableScalingFactor</a>(ColIndex(i));</div>
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<div class="line"><a id="l00413" name="l00413"></a><span class="lineno"> 413</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093">SetVariableBounds</a>(ColIndex(i), lb * factor, ub * factor);</div>
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<div class="line"><a id="l00414" name="l00414"></a><span class="lineno"> 414</span> }</div>
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<div class="line"><a id="l00415" name="l00415"></a><span class="lineno"> 415</span>}</div>
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<div class="line"><a id="l00416" name="l00416"></a><span class="lineno"> 416</span> </div>
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<div class="line"><a id="l00417" name="l00417"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a680158afc869b1a617ca173fa0033202"> 417</a></span><span class="keywordtype">double</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a680158afc869b1a617ca173fa0033202">FeasibilityPump::GetLPSolutionValue</a>(IntegerVariable variable)<span class="keyword"> const </span>{</div>
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<div class="line"><a id="l00418" name="l00418"></a><span class="lineno"> 418</span> <span class="keywordflow">return</span> lp_solution_[<a class="code hl_function" href="namespacegtl.html#a73f41ac11336b94768fdd41594153d59">gtl::FindOrDie</a>(mirror_lp_variable_, variable).value()];</div>
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<div class="line"><a id="l00419" name="l00419"></a><span class="lineno"> 419</span>}</div>
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<div class="line"><a id="l00420" name="l00420"></a><span class="lineno"> 420</span> </div>
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<div class="line"><a id="l00421" name="l00421"></a><span class="lineno"> 421</span><span class="keywordtype">double</span> FeasibilityPump::GetVariableValueAtCpScale(ColIndex <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) {</div>
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<div class="line"><a id="l00422" name="l00422"></a><span class="lineno"> 422</span> <span class="keywordflow">return</span> scaler_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_lp_scaling_helper.html#a60d41c66b603be0ec7517d437e5c63ec">UnscaleVariableValue</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, simplex_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_revised_simplex.html#a201108c6e8d9fb5104697bdd0a8bd085">GetVariableValue</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>));</div>
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<div class="line"><a id="l00423" name="l00423"></a><span class="lineno"> 423</span>}</div>
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<div class="line"><a id="l00424" name="l00424"></a><span class="lineno"> 424</span> </div>
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<div class="line"><a id="l00425" name="l00425"></a><span class="lineno"> 425</span><span class="comment">// ----------------------------------------------------------------</span></div>
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<div class="line"><a id="l00426" name="l00426"></a><span class="lineno"> 426</span><span class="comment">// -------------------Rounding-------------------------------------</span></div>
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<div class="line"><a id="l00427" name="l00427"></a><span class="lineno"> 427</span><span class="comment">// ----------------------------------------------------------------</span></div>
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<div class="line"><a id="l00428" name="l00428"></a><span class="lineno"> 428</span> </div>
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<div class="line"><a id="l00429" name="l00429"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a9ad847669329f6fbccf8e4553adc7dee"> 429</a></span>int64_t <a class="code hl_function" href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a9ad847669329f6fbccf8e4553adc7dee">FeasibilityPump::GetIntegerSolutionValue</a>(</div>
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<div class="line"><a id="l00430" name="l00430"></a><span class="lineno"> 430</span> IntegerVariable variable)<span class="keyword"> const </span>{</div>
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<div class="line"><a id="l00431" name="l00431"></a><span class="lineno"> 431</span> <span class="keywordflow">return</span> integer_solution_[<a class="code hl_function" href="namespacegtl.html#a73f41ac11336b94768fdd41594153d59">gtl::FindOrDie</a>(mirror_lp_variable_, variable)</div>
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<div class="line"><a id="l00432" name="l00432"></a><span class="lineno"> 432</span> .value()];</div>
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<div class="line"><a id="l00433" name="l00433"></a><span class="lineno"> 433</span>}</div>
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<div class="line"><a id="l00434" name="l00434"></a><span class="lineno"> 434</span> </div>
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<div class="line"><a id="l00435" name="l00435"></a><span class="lineno"> 435</span><span class="keywordtype">bool</span> FeasibilityPump::Round() {</div>
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<div class="line"><a id="l00436" name="l00436"></a><span class="lineno"> 436</span> <span class="keywordtype">bool</span> rounding_successful = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00437" name="l00437"></a><span class="lineno"> 437</span> <span class="keywordflow">if</span> (sat_parameters_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a18b43f42eaf13ab756b22b49fc981881">fp_rounding</a>() == <a class="code hl_variable" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a30a14db0c416e43deb20a7374abe39a0">SatParameters::NEAREST_INTEGER</a>) {</div>
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<div class="line"><a id="l00438" name="l00438"></a><span class="lineno"> 438</span> rounding_successful = NearestIntegerRounding();</div>
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<div class="line"><a id="l00439" name="l00439"></a><span class="lineno"> 439</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (sat_parameters_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a18b43f42eaf13ab756b22b49fc981881">fp_rounding</a>() == <a class="code hl_variable" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a7b4e91d6ccf881f4d31d3c1fff97f330">SatParameters::LOCK_BASED</a>) {</div>
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<div class="line"><a id="l00440" name="l00440"></a><span class="lineno"> 440</span> rounding_successful = LockBasedRounding();</div>
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<div class="line"><a id="l00441" name="l00441"></a><span class="lineno"> 441</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (sat_parameters_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a18b43f42eaf13ab756b22b49fc981881">fp_rounding</a>() ==</div>
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<div class="line"><a id="l00442" name="l00442"></a><span class="lineno"> 442</span> <a class="code hl_variable" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a93b17ac067d83120d7c2d3c680adf8c5">SatParameters::ACTIVE_LOCK_BASED</a>) {</div>
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<div class="line"><a id="l00443" name="l00443"></a><span class="lineno"> 443</span> rounding_successful = ActiveLockBasedRounding();</div>
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<div class="line"><a id="l00444" name="l00444"></a><span class="lineno"> 444</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (sat_parameters_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a18b43f42eaf13ab756b22b49fc981881">fp_rounding</a>() ==</div>
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<div class="line"><a id="l00445" name="l00445"></a><span class="lineno"> 445</span> <a class="code hl_variable" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a32c4461508cb8e523fa91e85e5ee6f9c">SatParameters::PROPAGATION_ASSISTED</a>) {</div>
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<div class="line"><a id="l00446" name="l00446"></a><span class="lineno"> 446</span> rounding_successful = PropagationRounding();</div>
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<div class="line"><a id="l00447" name="l00447"></a><span class="lineno"> 447</span> }</div>
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<div class="line"><a id="l00448" name="l00448"></a><span class="lineno"> 448</span> <span class="keywordflow">if</span> (!rounding_successful) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00449" name="l00449"></a><span class="lineno"> 449</span> FillIntegerSolutionStats();</div>
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<div class="line"><a id="l00450" name="l00450"></a><span class="lineno"> 450</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00451" name="l00451"></a><span class="lineno"> 451</span>}</div>
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<div class="line"><a id="l00452" name="l00452"></a><span class="lineno"> 452</span> </div>
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<div class="line"><a id="l00453" name="l00453"></a><span class="lineno"> 453</span><span class="keywordtype">bool</span> FeasibilityPump::NearestIntegerRounding() {</div>
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<div class="line"><a id="l00454" name="l00454"></a><span class="lineno"> 454</span> <span class="keywordflow">if</span> (!lp_solution_is_set_) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00455" name="l00455"></a><span class="lineno"> 455</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < lp_solution_.size(); ++i) {</div>
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<div class="line"><a id="l00456" name="l00456"></a><span class="lineno"> 456</span> integer_solution_[i] = <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(std::round(lp_solution_[i]));</div>
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<div class="line"><a id="l00457" name="l00457"></a><span class="lineno"> 457</span> }</div>
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<div class="line"><a id="l00458" name="l00458"></a><span class="lineno"> 458</span> integer_solution_is_set_ = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00459" name="l00459"></a><span class="lineno"> 459</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00460" name="l00460"></a><span class="lineno"> 460</span>}</div>
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<div class="line"><a id="l00461" name="l00461"></a><span class="lineno"> 461</span> </div>
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<div class="line"><a id="l00462" name="l00462"></a><span class="lineno"> 462</span><span class="keywordtype">bool</span> FeasibilityPump::LockBasedRounding() {</div>
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<div class="line"><a id="l00463" name="l00463"></a><span class="lineno"> 463</span> <span class="keywordflow">if</span> (!lp_solution_is_set_) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00464" name="l00464"></a><span class="lineno"> 464</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_vars = integer_variables_.size();</div>
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<div class="line"><a id="l00465" name="l00465"></a><span class="lineno"> 465</span> </div>
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<div class="line"><a id="l00466" name="l00466"></a><span class="lineno"> 466</span> <span class="comment">// We compute the number of locks based on variable coefficient in constraints</span></div>
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<div class="line"><a id="l00467" name="l00467"></a><span class="lineno"> 467</span> <span class="comment">// and constraint bounds. This doesn't change over time so we cache it.</span></div>
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<div class="line"><a id="l00468" name="l00468"></a><span class="lineno"> 468</span> <span class="keywordflow">if</span> (var_up_locks_.empty()) {</div>
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<div class="line"><a id="l00469" name="l00469"></a><span class="lineno"> 469</span> var_up_locks_.resize(num_vars, 0);</div>
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<div class="line"><a id="l00470" name="l00470"></a><span class="lineno"> 470</span> var_down_locks_.resize(num_vars, 0);</div>
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<div class="line"><a id="l00471" name="l00471"></a><span class="lineno"> 471</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_vars; ++i) {</div>
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<div class="line"><a id="l00472" name="l00472"></a><span class="lineno"> 472</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> entry : lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049">GetSparseColumn</a>(ColIndex(i))) {</div>
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<div class="line"><a id="l00473" name="l00473"></a><span class="lineno"> 473</span> ColIndex slack = lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a48de416333220c0bea7759c5aa53ee14">GetSlackVariable</a>(entry.row());</div>
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<div class="line"><a id="l00474" name="l00474"></a><span class="lineno"> 474</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> constraint_upper_bounded =</div>
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<div class="line"><a id="l00475" name="l00475"></a><span class="lineno"> 475</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#adb3b261831be8afb947baceaba1c220b">variable_lower_bounds</a>()[slack] > -<a class="code hl_variable" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">glop::kInfinity</a>;</div>
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|
<div class="line"><a id="l00476" name="l00476"></a><span class="lineno"> 476</span> </div>
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<div class="line"><a id="l00477" name="l00477"></a><span class="lineno"> 477</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> constraint_lower_bounded =</div>
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<div class="line"><a id="l00478" name="l00478"></a><span class="lineno"> 478</span> lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#a74f1c824468608a9bb5fee6f10eca698">variable_upper_bounds</a>()[slack] < <a class="code hl_variable" href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">glop::kInfinity</a>;</div>
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<div class="line"><a id="l00479" name="l00479"></a><span class="lineno"> 479</span> </div>
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<div class="line"><a id="l00480" name="l00480"></a><span class="lineno"> 480</span> <span class="keywordflow">if</span> (entry.coefficient() > 0) {</div>
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<div class="line"><a id="l00481" name="l00481"></a><span class="lineno"> 481</span> var_up_locks_[i] += constraint_upper_bounded;</div>
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<div class="line"><a id="l00482" name="l00482"></a><span class="lineno"> 482</span> var_down_locks_[i] += constraint_lower_bounded;</div>
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<div class="line"><a id="l00483" name="l00483"></a><span class="lineno"> 483</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00484" name="l00484"></a><span class="lineno"> 484</span> var_up_locks_[i] += constraint_lower_bounded;</div>
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<div class="line"><a id="l00485" name="l00485"></a><span class="lineno"> 485</span> var_down_locks_[i] += constraint_upper_bounded;</div>
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<div class="line"><a id="l00486" name="l00486"></a><span class="lineno"> 486</span> }</div>
|
|
<div class="line"><a id="l00487" name="l00487"></a><span class="lineno"> 487</span> }</div>
|
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<div class="line"><a id="l00488" name="l00488"></a><span class="lineno"> 488</span> }</div>
|
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<div class="line"><a id="l00489" name="l00489"></a><span class="lineno"> 489</span> }</div>
|
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<div class="line"><a id="l00490" name="l00490"></a><span class="lineno"> 490</span> </div>
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<div class="line"><a id="l00491" name="l00491"></a><span class="lineno"> 491</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < lp_solution_.size(); ++i) {</div>
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<div class="line"><a id="l00492" name="l00492"></a><span class="lineno"> 492</span> <span class="keywordflow">if</span> (std::abs(lp_solution_[i] - std::round(lp_solution_[i])) < 0.1 ||</div>
|
|
<div class="line"><a id="l00493" name="l00493"></a><span class="lineno"> 493</span> var_up_locks_[i] == var_down_locks_[i]) {</div>
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|
<div class="line"><a id="l00494" name="l00494"></a><span class="lineno"> 494</span> integer_solution_[i] = <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(std::round(lp_solution_[i]));</div>
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<div class="line"><a id="l00495" name="l00495"></a><span class="lineno"> 495</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (var_up_locks_[i] > var_down_locks_[i]) {</div>
|
|
<div class="line"><a id="l00496" name="l00496"></a><span class="lineno"> 496</span> integer_solution_[i] = <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(std::floor(lp_solution_[i]));</div>
|
|
<div class="line"><a id="l00497" name="l00497"></a><span class="lineno"> 497</span> } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a id="l00498" name="l00498"></a><span class="lineno"> 498</span> integer_solution_[i] = <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(std::ceil(lp_solution_[i]));</div>
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<div class="line"><a id="l00499" name="l00499"></a><span class="lineno"> 499</span> }</div>
|
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<div class="line"><a id="l00500" name="l00500"></a><span class="lineno"> 500</span> }</div>
|
|
<div class="line"><a id="l00501" name="l00501"></a><span class="lineno"> 501</span> integer_solution_is_set_ = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l00502" name="l00502"></a><span class="lineno"> 502</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l00503" name="l00503"></a><span class="lineno"> 503</span>}</div>
|
|
<div class="line"><a id="l00504" name="l00504"></a><span class="lineno"> 504</span> </div>
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<div class="line"><a id="l00505" name="l00505"></a><span class="lineno"> 505</span><span class="keywordtype">bool</span> FeasibilityPump::ActiveLockBasedRounding() {</div>
|
|
<div class="line"><a id="l00506" name="l00506"></a><span class="lineno"> 506</span> <span class="keywordflow">if</span> (!lp_solution_is_set_) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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|
<div class="line"><a id="l00507" name="l00507"></a><span class="lineno"> 507</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_vars = integer_variables_.size();</div>
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|
<div class="line"><a id="l00508" name="l00508"></a><span class="lineno"> 508</span> </div>
|
|
<div class="line"><a id="l00509" name="l00509"></a><span class="lineno"> 509</span> <span class="comment">// We compute the number of locks based on variable coefficient in constraints</span></div>
|
|
<div class="line"><a id="l00510" name="l00510"></a><span class="lineno"> 510</span> <span class="comment">// and constraint bounds of active constraints. We consider the bound of the</span></div>
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|
<div class="line"><a id="l00511" name="l00511"></a><span class="lineno"> 511</span> <span class="comment">// constraint that is tight for the current lp solution.</span></div>
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<div class="line"><a id="l00512" name="l00512"></a><span class="lineno"> 512</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_vars; ++i) {</div>
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<div class="line"><a id="l00513" name="l00513"></a><span class="lineno"> 513</span> <span class="keywordflow">if</span> (std::abs(lp_solution_[i] - std::round(lp_solution_[i])) < 0.1) {</div>
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<div class="line"><a id="l00514" name="l00514"></a><span class="lineno"> 514</span> integer_solution_[i] = <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(std::round(lp_solution_[i]));</div>
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<div class="line"><a id="l00515" name="l00515"></a><span class="lineno"> 515</span> }</div>
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<div class="line"><a id="l00516" name="l00516"></a><span class="lineno"> 516</span> </div>
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<div class="line"><a id="l00517" name="l00517"></a><span class="lineno"> 517</span> <span class="keywordtype">int</span> up_locks = 0;</div>
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<div class="line"><a id="l00518" name="l00518"></a><span class="lineno"> 518</span> <span class="keywordtype">int</span> down_locks = 0;</div>
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<div class="line"><a id="l00519" name="l00519"></a><span class="lineno"> 519</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> entry : lp_data_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049">GetSparseColumn</a>(ColIndex(i))) {</div>
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<div class="line"><a id="l00520" name="l00520"></a><span class="lineno"> 520</span> <span class="keyword">const</span> <a class="code hl_enumeration" href="namespaceoperations__research_1_1glop.html#a0f6bd47b8956b59589718bd40b1cf8bc">ConstraintStatus</a> row_status =</div>
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<div class="line"><a id="l00521" name="l00521"></a><span class="lineno"> 521</span> simplex_.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_revised_simplex.html#ac0064327c37c56b93e86a91a1d64fd96">GetConstraintStatus</a>(entry.row());</div>
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<div class="line"><a id="l00522" name="l00522"></a><span class="lineno"> 522</span> <span class="keywordflow">if</span> (row_status == ConstraintStatus::AT_LOWER_BOUND) {</div>
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<div class="line"><a id="l00523" name="l00523"></a><span class="lineno"> 523</span> <span class="keywordflow">if</span> (entry.coefficient() > 0) {</div>
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<div class="line"><a id="l00524" name="l00524"></a><span class="lineno"> 524</span> down_locks++;</div>
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<div class="line"><a id="l00525" name="l00525"></a><span class="lineno"> 525</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00526" name="l00526"></a><span class="lineno"> 526</span> up_locks++;</div>
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<div class="line"><a id="l00527" name="l00527"></a><span class="lineno"> 527</span> }</div>
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<div class="line"><a id="l00528" name="l00528"></a><span class="lineno"> 528</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (row_status == ConstraintStatus::AT_UPPER_BOUND) {</div>
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<div class="line"><a id="l00529" name="l00529"></a><span class="lineno"> 529</span> <span class="keywordflow">if</span> (entry.coefficient() > 0) {</div>
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<div class="line"><a id="l00530" name="l00530"></a><span class="lineno"> 530</span> up_locks++;</div>
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<div class="line"><a id="l00531" name="l00531"></a><span class="lineno"> 531</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00532" name="l00532"></a><span class="lineno"> 532</span> down_locks++;</div>
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<div class="line"><a id="l00533" name="l00533"></a><span class="lineno"> 533</span> }</div>
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<div class="line"><a id="l00534" name="l00534"></a><span class="lineno"> 534</span> }</div>
|
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<div class="line"><a id="l00535" name="l00535"></a><span class="lineno"> 535</span> }</div>
|
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<div class="line"><a id="l00536" name="l00536"></a><span class="lineno"> 536</span> <span class="keywordflow">if</span> (up_locks == down_locks) {</div>
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<div class="line"><a id="l00537" name="l00537"></a><span class="lineno"> 537</span> integer_solution_[i] = <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(std::round(lp_solution_[i]));</div>
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<div class="line"><a id="l00538" name="l00538"></a><span class="lineno"> 538</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (up_locks > down_locks) {</div>
|
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<div class="line"><a id="l00539" name="l00539"></a><span class="lineno"> 539</span> integer_solution_[i] = <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(std::floor(lp_solution_[i]));</div>
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<div class="line"><a id="l00540" name="l00540"></a><span class="lineno"> 540</span> } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a id="l00541" name="l00541"></a><span class="lineno"> 541</span> integer_solution_[i] = <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(std::ceil(lp_solution_[i]));</div>
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<div class="line"><a id="l00542" name="l00542"></a><span class="lineno"> 542</span> }</div>
|
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<div class="line"><a id="l00543" name="l00543"></a><span class="lineno"> 543</span> }</div>
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<div class="line"><a id="l00544" name="l00544"></a><span class="lineno"> 544</span> </div>
|
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<div class="line"><a id="l00545" name="l00545"></a><span class="lineno"> 545</span> integer_solution_is_set_ = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00546" name="l00546"></a><span class="lineno"> 546</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00547" name="l00547"></a><span class="lineno"> 547</span>}</div>
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<div class="line"><a id="l00548" name="l00548"></a><span class="lineno"> 548</span> </div>
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<div class="line"><a id="l00549" name="l00549"></a><span class="lineno"> 549</span><span class="keywordtype">bool</span> FeasibilityPump::PropagationRounding() {</div>
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<div class="line"><a id="l00550" name="l00550"></a><span class="lineno"> 550</span> <span class="keywordflow">if</span> (!lp_solution_is_set_) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00551" name="l00551"></a><span class="lineno"> 551</span> sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a9da38c8d2910442d551db5e360423029">ResetToLevelZero</a>();</div>
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<div class="line"><a id="l00552" name="l00552"></a><span class="lineno"> 552</span> </div>
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<div class="line"><a id="l00553" name="l00553"></a><span class="lineno"> 553</span> <span class="comment">// Compute an order in which we will fix variables and do the propagation.</span></div>
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<div class="line"><a id="l00554" name="l00554"></a><span class="lineno"> 554</span> std::vector<int> rounding_order;</div>
|
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<div class="line"><a id="l00555" name="l00555"></a><span class="lineno"> 555</span> {</div>
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<div class="line"><a id="l00556" name="l00556"></a><span class="lineno"> 556</span> std::vector<std::pair<double, int>> binary_fractionality_vars;</div>
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<div class="line"><a id="l00557" name="l00557"></a><span class="lineno"> 557</span> std::vector<std::pair<double, int>> general_fractionality_vars;</div>
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<div class="line"><a id="l00558" name="l00558"></a><span class="lineno"> 558</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < lp_solution_.size(); ++i) {</div>
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<div class="line"><a id="l00559" name="l00559"></a><span class="lineno"> 559</span> <span class="keyword">const</span> <span class="keywordtype">double</span> fractionality =</div>
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<div class="line"><a id="l00560" name="l00560"></a><span class="lineno"> 560</span> std::abs(std::round(lp_solution_[i]) - lp_solution_[i]);</div>
|
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<div class="line"><a id="l00561" name="l00561"></a><span class="lineno"> 561</span> <span class="keywordflow">if</span> (var_is_binary_[i]) {</div>
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<div class="line"><a id="l00562" name="l00562"></a><span class="lineno"> 562</span> binary_fractionality_vars.push_back({fractionality, i});</div>
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<div class="line"><a id="l00563" name="l00563"></a><span class="lineno"> 563</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00564" name="l00564"></a><span class="lineno"> 564</span> general_fractionality_vars.push_back({fractionality, i});</div>
|
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<div class="line"><a id="l00565" name="l00565"></a><span class="lineno"> 565</span> }</div>
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<div class="line"><a id="l00566" name="l00566"></a><span class="lineno"> 566</span> }</div>
|
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<div class="line"><a id="l00567" name="l00567"></a><span class="lineno"> 567</span> std::sort(binary_fractionality_vars.begin(),</div>
|
|
<div class="line"><a id="l00568" name="l00568"></a><span class="lineno"> 568</span> binary_fractionality_vars.end());</div>
|
|
<div class="line"><a id="l00569" name="l00569"></a><span class="lineno"> 569</span> std::sort(general_fractionality_vars.begin(),</div>
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<div class="line"><a id="l00570" name="l00570"></a><span class="lineno"> 570</span> general_fractionality_vars.end());</div>
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<div class="line"><a id="l00571" name="l00571"></a><span class="lineno"> 571</span> </div>
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<div class="line"><a id="l00572" name="l00572"></a><span class="lineno"> 572</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < binary_fractionality_vars.size(); ++i) {</div>
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<div class="line"><a id="l00573" name="l00573"></a><span class="lineno"> 573</span> rounding_order.push_back(binary_fractionality_vars[i].second);</div>
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<div class="line"><a id="l00574" name="l00574"></a><span class="lineno"> 574</span> }</div>
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<div class="line"><a id="l00575" name="l00575"></a><span class="lineno"> 575</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < general_fractionality_vars.size(); ++i) {</div>
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<div class="line"><a id="l00576" name="l00576"></a><span class="lineno"> 576</span> rounding_order.push_back(general_fractionality_vars[i].second);</div>
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<div class="line"><a id="l00577" name="l00577"></a><span class="lineno"> 577</span> }</div>
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<div class="line"><a id="l00578" name="l00578"></a><span class="lineno"> 578</span> }</div>
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<div class="line"><a id="l00579" name="l00579"></a><span class="lineno"> 579</span> </div>
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<div class="line"><a id="l00580" name="l00580"></a><span class="lineno"> 580</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">int</span> var_index : rounding_order) {</div>
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|
<div class="line"><a id="l00581" name="l00581"></a><span class="lineno"> 581</span> <span class="keywordflow">if</span> (time_limit_-><a class="code hl_function" href="classoperations__research_1_1_time_limit.html#a810d5f7aaf80cc09cf5a094e20c1aaca">LimitReached</a>()) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00582" name="l00582"></a><span class="lineno"> 582</span> <span class="comment">// Get the bounds of the variable.</span></div>
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<div class="line"><a id="l00583" name="l00583"></a><span class="lineno"> 583</span> <span class="keyword">const</span> IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = integer_variables_[var_index];</div>
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<div class="line"><a id="l00584" name="l00584"></a><span class="lineno"> 584</span> <span class="keyword">const</span> Domain& domain = (*domains_)[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>];</div>
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<div class="line"><a id="l00585" name="l00585"></a><span class="lineno"> 585</span> </div>
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<div class="line"><a id="l00586" name="l00586"></a><span class="lineno"> 586</span> <span class="keyword">const</span> IntegerValue lb = integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9">LowerBound</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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|
<div class="line"><a id="l00587" name="l00587"></a><span class="lineno"> 587</span> <span class="keyword">const</span> IntegerValue ub = integer_trail_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a8b6d5a25e6ad3d28a85b1924471e2cac">UpperBound</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00588" name="l00588"></a><span class="lineno"> 588</span> <span class="keywordflow">if</span> (lb == ub) {</div>
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<div class="line"><a id="l00589" name="l00589"></a><span class="lineno"> 589</span> integer_solution_[var_index] = lb.value();</div>
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|
<div class="line"><a id="l00590" name="l00590"></a><span class="lineno"> 590</span> <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00591" name="l00591"></a><span class="lineno"> 591</span> }</div>
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<div class="line"><a id="l00592" name="l00592"></a><span class="lineno"> 592</span> </div>
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<div class="line"><a id="l00593" name="l00593"></a><span class="lineno"> 593</span> <span class="keyword">const</span> int64_t rounded_value =</div>
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|
<div class="line"><a id="l00594" name="l00594"></a><span class="lineno"> 594</span> <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(std::round(lp_solution_[var_index]));</div>
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<div class="line"><a id="l00595" name="l00595"></a><span class="lineno"> 595</span> <span class="keyword">const</span> int64_t floor_value =</div>
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<div class="line"><a id="l00596" name="l00596"></a><span class="lineno"> 596</span> <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(std::floor(lp_solution_[var_index]));</div>
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<div class="line"><a id="l00597" name="l00597"></a><span class="lineno"> 597</span> <span class="keyword">const</span> int64_t ceil_value =</div>
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<div class="line"><a id="l00598" name="l00598"></a><span class="lineno"> 598</span> <span class="keyword">static_cast<</span>int64_t<span class="keyword">></span>(std::ceil(lp_solution_[var_index]));</div>
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<div class="line"><a id="l00599" name="l00599"></a><span class="lineno"> 599</span> </div>
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<div class="line"><a id="l00600" name="l00600"></a><span class="lineno"> 600</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> floor_is_in_domain =</div>
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<div class="line"><a id="l00601" name="l00601"></a><span class="lineno"> 601</span> (domain.Contains(floor_value) && lb.value() <= floor_value);</div>
|
|
<div class="line"><a id="l00602" name="l00602"></a><span class="lineno"> 602</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> ceil_is_in_domain =</div>
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|
<div class="line"><a id="l00603" name="l00603"></a><span class="lineno"> 603</span> (domain.Contains(ceil_value) && ub.value() >= ceil_value);</div>
|
|
<div class="line"><a id="l00604" name="l00604"></a><span class="lineno"> 604</span> <span class="keywordflow">if</span> (domain.IsEmpty()) {</div>
|
|
<div class="line"><a id="l00605" name="l00605"></a><span class="lineno"> 605</span> integer_solution_[var_index] = rounded_value;</div>
|
|
<div class="line"><a id="l00606" name="l00606"></a><span class="lineno"> 606</span> model_is_unsat_ = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l00607" name="l00607"></a><span class="lineno"> 607</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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|
<div class="line"><a id="l00608" name="l00608"></a><span class="lineno"> 608</span> }</div>
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|
<div class="line"><a id="l00609" name="l00609"></a><span class="lineno"> 609</span> </div>
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|
<div class="line"><a id="l00610" name="l00610"></a><span class="lineno"> 610</span> <span class="keywordflow">if</span> (ceil_value < lb.value()) {</div>
|
|
<div class="line"><a id="l00611" name="l00611"></a><span class="lineno"> 611</span> integer_solution_[var_index] = lb.value();</div>
|
|
<div class="line"><a id="l00612" name="l00612"></a><span class="lineno"> 612</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (floor_value > ub.value()) {</div>
|
|
<div class="line"><a id="l00613" name="l00613"></a><span class="lineno"> 613</span> integer_solution_[var_index] = ub.value();</div>
|
|
<div class="line"><a id="l00614" name="l00614"></a><span class="lineno"> 614</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (ceil_is_in_domain && floor_is_in_domain) {</div>
|
|
<div class="line"><a id="l00615" name="l00615"></a><span class="lineno"> 615</span> <a class="code hl_define" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(domain.Contains(rounded_value));</div>
|
|
<div class="line"><a id="l00616" name="l00616"></a><span class="lineno"> 616</span> integer_solution_[var_index] = rounded_value;</div>
|
|
<div class="line"><a id="l00617" name="l00617"></a><span class="lineno"> 617</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (ceil_is_in_domain) {</div>
|
|
<div class="line"><a id="l00618" name="l00618"></a><span class="lineno"> 618</span> integer_solution_[var_index] = ceil_value;</div>
|
|
<div class="line"><a id="l00619" name="l00619"></a><span class="lineno"> 619</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (floor_is_in_domain) {</div>
|
|
<div class="line"><a id="l00620" name="l00620"></a><span class="lineno"> 620</span> integer_solution_[var_index] = floor_value;</div>
|
|
<div class="line"><a id="l00621" name="l00621"></a><span class="lineno"> 621</span> } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a id="l00622" name="l00622"></a><span class="lineno"> 622</span> <span class="keyword">const</span> std::pair<IntegerLiteral, IntegerLiteral> values_in_domain =</div>
|
|
<div class="line"><a id="l00623" name="l00623"></a><span class="lineno"> 623</span> integer_encoder_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_encoder.html#a4a1c84558c01bae528113b50c0611564">Canonicalize</a>(</div>
|
|
<div class="line"><a id="l00624" name="l00624"></a><span class="lineno"> 624</span> <a class="code hl_function" href="structoperations__research_1_1sat_1_1_integer_literal.html#a6c233aafac25ea66d69de93a83c9be63">IntegerLiteral::GreaterOrEqual</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, IntegerValue(rounded_value)));</div>
|
|
<div class="line"><a id="l00625" name="l00625"></a><span class="lineno"> 625</span> <span class="keyword">const</span> int64_t lower_value = values_in_domain.first.bound.value();</div>
|
|
<div class="line"><a id="l00626" name="l00626"></a><span class="lineno"> 626</span> <span class="keyword">const</span> int64_t higher_value = -values_in_domain.second.bound.value();</div>
|
|
<div class="line"><a id="l00627" name="l00627"></a><span class="lineno"> 627</span> <span class="keyword">const</span> int64_t distance_from_lower_value =</div>
|
|
<div class="line"><a id="l00628" name="l00628"></a><span class="lineno"> 628</span> std::abs(lower_value - rounded_value);</div>
|
|
<div class="line"><a id="l00629" name="l00629"></a><span class="lineno"> 629</span> <span class="keyword">const</span> int64_t distance_from_higher_value =</div>
|
|
<div class="line"><a id="l00630" name="l00630"></a><span class="lineno"> 630</span> std::abs(higher_value - rounded_value);</div>
|
|
<div class="line"><a id="l00631" name="l00631"></a><span class="lineno"> 631</span> </div>
|
|
<div class="line"><a id="l00632" name="l00632"></a><span class="lineno"> 632</span> integer_solution_[var_index] =</div>
|
|
<div class="line"><a id="l00633" name="l00633"></a><span class="lineno"> 633</span> (distance_from_lower_value < distance_from_higher_value)</div>
|
|
<div class="line"><a id="l00634" name="l00634"></a><span class="lineno"> 634</span> ? lower_value</div>
|
|
<div class="line"><a id="l00635" name="l00635"></a><span class="lineno"> 635</span> : higher_value;</div>
|
|
<div class="line"><a id="l00636" name="l00636"></a><span class="lineno"> 636</span> }</div>
|
|
<div class="line"><a id="l00637" name="l00637"></a><span class="lineno"> 637</span> </div>
|
|
<div class="line"><a id="l00638" name="l00638"></a><span class="lineno"> 638</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(domain.Contains(integer_solution_[var_index]));</div>
|
|
<div class="line"><a id="l00639" name="l00639"></a><span class="lineno"> 639</span> <a class="code hl_define" href="base_2logging_8h.html#a7cc25402ecd7591b4c39934dd656b1f9">CHECK_GE</a>(integer_solution_[var_index], lb);</div>
|
|
<div class="line"><a id="l00640" name="l00640"></a><span class="lineno"> 640</span> <a class="code hl_define" href="base_2logging_8h.html#ae4db23f10f5d4aad6d735f5a74cd6f8c">CHECK_LE</a>(integer_solution_[var_index], ub);</div>
|
|
<div class="line"><a id="l00641" name="l00641"></a><span class="lineno"> 641</span> </div>
|
|
<div class="line"><a id="l00642" name="l00642"></a><span class="lineno"> 642</span> <span class="comment">// Propagate the value.</span></div>
|
|
<div class="line"><a id="l00643" name="l00643"></a><span class="lineno"> 643</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00644" name="l00644"></a><span class="lineno"> 644</span> <span class="comment">// When we want to fix the variable at its lb or ub, we do not create an</span></div>
|
|
<div class="line"><a id="l00645" name="l00645"></a><span class="lineno"> 645</span> <span class="comment">// equality literal to minimize the number of new literal we create. This</span></div>
|
|
<div class="line"><a id="l00646" name="l00646"></a><span class="lineno"> 646</span> <span class="comment">// is because creating an "== value" literal will implicitly also create</span></div>
|
|
<div class="line"><a id="l00647" name="l00647"></a><span class="lineno"> 647</span> <span class="comment">// a ">= value" and a "<= value" literals.</span></div>
|
|
<div class="line"><a id="l00648" name="l00648"></a><span class="lineno"> 648</span> Literal to_enqueue;</div>
|
|
<div class="line"><a id="l00649" name="l00649"></a><span class="lineno"> 649</span> <span class="keyword">const</span> IntegerValue <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>(integer_solution_[var_index]);</div>
|
|
<div class="line"><a id="l00650" name="l00650"></a><span class="lineno"> 650</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> == lb) {</div>
|
|
<div class="line"><a id="l00651" name="l00651"></a><span class="lineno"> 651</span> to_enqueue = integer_encoder_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_encoder.html#afcd4038298bec97a2f7a61274c6ef8c7">GetOrCreateAssociatedLiteral</a>(</div>
|
|
<div class="line"><a id="l00652" name="l00652"></a><span class="lineno"> 652</span> <a class="code hl_function" href="structoperations__research_1_1sat_1_1_integer_literal.html#a3e2eb445631727dd4abf1d5343f16b2f">IntegerLiteral::LowerOrEqual</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>));</div>
|
|
<div class="line"><a id="l00653" name="l00653"></a><span class="lineno"> 653</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a> == ub) {</div>
|
|
<div class="line"><a id="l00654" name="l00654"></a><span class="lineno"> 654</span> to_enqueue = integer_encoder_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_encoder.html#afcd4038298bec97a2f7a61274c6ef8c7">GetOrCreateAssociatedLiteral</a>(</div>
|
|
<div class="line"><a id="l00655" name="l00655"></a><span class="lineno"> 655</span> <a class="code hl_function" href="structoperations__research_1_1sat_1_1_integer_literal.html#a6c233aafac25ea66d69de93a83c9be63">IntegerLiteral::GreaterOrEqual</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>));</div>
|
|
<div class="line"><a id="l00656" name="l00656"></a><span class="lineno"> 656</span> } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a id="l00657" name="l00657"></a><span class="lineno"> 657</span> to_enqueue =</div>
|
|
<div class="line"><a id="l00658" name="l00658"></a><span class="lineno"> 658</span> integer_encoder_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_encoder.html#a074fe196a1aaff1dd5fd73e0b3bb1f0e">GetOrCreateLiteralAssociatedToEquality</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
|
|
<div class="line"><a id="l00659" name="l00659"></a><span class="lineno"> 659</span> }</div>
|
|
<div class="line"><a id="l00660" name="l00660"></a><span class="lineno"> 660</span> </div>
|
|
<div class="line"><a id="l00661" name="l00661"></a><span class="lineno"> 661</span> <span class="keywordflow">if</span> (!sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a607d97ccada862073f297bc2d495124d">FinishPropagation</a>()) {</div>
|
|
<div class="line"><a id="l00662" name="l00662"></a><span class="lineno"> 662</span> model_is_unsat_ = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l00663" name="l00663"></a><span class="lineno"> 663</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00664" name="l00664"></a><span class="lineno"> 664</span> }</div>
|
|
<div class="line"><a id="l00665" name="l00665"></a><span class="lineno"> 665</span> sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#ab63a08713131e63e9cc4109f98ecf859">EnqueueDecisionAndBacktrackOnConflict</a>(to_enqueue);</div>
|
|
<div class="line"><a id="l00666" name="l00666"></a><span class="lineno"> 666</span> </div>
|
|
<div class="line"><a id="l00667" name="l00667"></a><span class="lineno"> 667</span> <span class="keywordflow">if</span> (sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#ad2a33e1d9335cce63548abed6b5c8aab">IsModelUnsat</a>()) {</div>
|
|
<div class="line"><a id="l00668" name="l00668"></a><span class="lineno"> 668</span> model_is_unsat_ = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l00669" name="l00669"></a><span class="lineno"> 669</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00670" name="l00670"></a><span class="lineno"> 670</span> }</div>
|
|
<div class="line"><a id="l00671" name="l00671"></a><span class="lineno"> 671</span> }</div>
|
|
<div class="line"><a id="l00672" name="l00672"></a><span class="lineno"> 672</span> sat_solver_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_solver.html#a9da38c8d2910442d551db5e360423029">ResetToLevelZero</a>();</div>
|
|
<div class="line"><a id="l00673" name="l00673"></a><span class="lineno"> 673</span> integer_solution_is_set_ = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l00674" name="l00674"></a><span class="lineno"> 674</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l00675" name="l00675"></a><span class="lineno"> 675</span>}</div>
|
|
<div class="line"><a id="l00676" name="l00676"></a><span class="lineno"> 676</span> </div>
|
|
<div class="line"><a id="l00677" name="l00677"></a><span class="lineno"> 677</span><span class="keywordtype">void</span> FeasibilityPump::FillIntegerSolutionStats() {</div>
|
|
<div class="line"><a id="l00678" name="l00678"></a><span class="lineno"> 678</span> <span class="comment">// Compute the objective value.</span></div>
|
|
<div class="line"><a id="l00679" name="l00679"></a><span class="lineno"> 679</span> integer_solution_objective_ = 0;</div>
|
|
<div class="line"><a id="l00680" name="l00680"></a><span class="lineno"> 680</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& term : integer_objective_) {</div>
|
|
<div class="line"><a id="l00681" name="l00681"></a><span class="lineno"> 681</span> integer_solution_objective_ +=</div>
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<div class="line"><a id="l00682" name="l00682"></a><span class="lineno"> 682</span> integer_solution_[term.first.value()] * term.second.value();</div>
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<div class="line"><a id="l00683" name="l00683"></a><span class="lineno"> 683</span> }</div>
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<div class="line"><a id="l00684" name="l00684"></a><span class="lineno"> 684</span> </div>
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<div class="line"><a id="l00685" name="l00685"></a><span class="lineno"> 685</span> integer_solution_is_feasible_ = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00686" name="l00686"></a><span class="lineno"> 686</span> num_infeasible_constraints_ = 0;</div>
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<div class="line"><a id="l00687" name="l00687"></a><span class="lineno"> 687</span> integer_solution_infeasibility_ = 0;</div>
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<div class="line"><a id="l00688" name="l00688"></a><span class="lineno"> 688</span> <span class="keywordflow">for</span> (RowIndex i(0); i < integer_lp_.size(); ++i) {</div>
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<div class="line"><a id="l00689" name="l00689"></a><span class="lineno"> 689</span> int64_t activity = 0;</div>
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<div class="line"><a id="l00690" name="l00690"></a><span class="lineno"> 690</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& term : integer_lp_[i].terms) {</div>
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<div class="line"><a id="l00691" name="l00691"></a><span class="lineno"> 691</span> <span class="keyword">const</span> int64_t prod =</div>
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<div class="line"><a id="l00692" name="l00692"></a><span class="lineno"> 692</span> <a class="code hl_function" href="namespaceoperations__research.html#aa64bf49d041052c7cb3f40f7496d7534">CapProd</a>(integer_solution_[term.first.value()], term.second.value());</div>
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<div class="line"><a id="l00693" name="l00693"></a><span class="lineno"> 693</span> <span class="keywordflow">if</span> (prod <= <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::numeric_limits<int64_t>::min</a>() ||</div>
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<div class="line"><a id="l00694" name="l00694"></a><span class="lineno"> 694</span> prod >= <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::numeric_limits<int64_t>::max</a>()) {</div>
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<div class="line"><a id="l00695" name="l00695"></a><span class="lineno"> 695</span> activity = prod;</div>
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<div class="line"><a id="l00696" name="l00696"></a><span class="lineno"> 696</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00697" name="l00697"></a><span class="lineno"> 697</span> }</div>
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<div class="line"><a id="l00698" name="l00698"></a><span class="lineno"> 698</span> activity = <a class="code hl_function" href="namespaceoperations__research.html#a111f44b9b9cf67a8e8d83794ac9f5291">CapAdd</a>(activity, prod);</div>
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<div class="line"><a id="l00699" name="l00699"></a><span class="lineno"> 699</span> <span class="keywordflow">if</span> (activity <= <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::numeric_limits<int64_t>::min</a>() ||</div>
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<div class="line"><a id="l00700" name="l00700"></a><span class="lineno"> 700</span> activity >= <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::numeric_limits<int64_t>::max</a>())</div>
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<div class="line"><a id="l00701" name="l00701"></a><span class="lineno"> 701</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00702" name="l00702"></a><span class="lineno"> 702</span> }</div>
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<div class="line"><a id="l00703" name="l00703"></a><span class="lineno"> 703</span> <span class="keywordflow">if</span> (activity > integer_lp_[i].ub || activity < integer_lp_[i].lb) {</div>
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<div class="line"><a id="l00704" name="l00704"></a><span class="lineno"> 704</span> integer_solution_is_feasible_ = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00705" name="l00705"></a><span class="lineno"> 705</span> num_infeasible_constraints_++;</div>
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<div class="line"><a id="l00706" name="l00706"></a><span class="lineno"> 706</span> <span class="keyword">const</span> int64_t ub_infeasibility =</div>
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<div class="line"><a id="l00707" name="l00707"></a><span class="lineno"> 707</span> activity > integer_lp_[i].ub.value()</div>
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<div class="line"><a id="l00708" name="l00708"></a><span class="lineno"> 708</span> ? activity - integer_lp_[i].ub.value()</div>
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<div class="line"><a id="l00709" name="l00709"></a><span class="lineno"> 709</span> : 0;</div>
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<div class="line"><a id="l00710" name="l00710"></a><span class="lineno"> 710</span> <span class="keyword">const</span> int64_t lb_infeasibility =</div>
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<div class="line"><a id="l00711" name="l00711"></a><span class="lineno"> 711</span> activity < integer_lp_[i].lb.value()</div>
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<div class="line"><a id="l00712" name="l00712"></a><span class="lineno"> 712</span> ? integer_lp_[i].lb.value() - activity</div>
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<div class="line"><a id="l00713" name="l00713"></a><span class="lineno"> 713</span> : 0;</div>
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<div class="line"><a id="l00714" name="l00714"></a><span class="lineno"> 714</span> integer_solution_infeasibility_ =</div>
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<div class="line"><a id="l00715" name="l00715"></a><span class="lineno"> 715</span> <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(integer_solution_infeasibility_,</div>
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<div class="line"><a id="l00716" name="l00716"></a><span class="lineno"> 716</span> <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(ub_infeasibility, lb_infeasibility));</div>
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<div class="line"><a id="l00717" name="l00717"></a><span class="lineno"> 717</span> }</div>
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<div class="line"><a id="l00718" name="l00718"></a><span class="lineno"> 718</span> }</div>
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<div class="line"><a id="l00719" name="l00719"></a><span class="lineno"> 719</span>}</div>
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<div class="line"><a id="l00720" name="l00720"></a><span class="lineno"> 720</span> </div>
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<div class="line"><a id="l00721" name="l00721"></a><span class="lineno"> 721</span>} <span class="comment">// namespace sat</span></div>
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<div class="line"><a id="l00722" name="l00722"></a><span class="lineno"> 722</span>} <span class="comment">// namespace operations_research</span></div>
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<div class="ttc" id="aalldiff__cst_8cc_html_a26e6db9bcc64b584051ecc28171ed11f"><div class="ttname"><a href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">max</a></div><div class="ttdeci">int64_t max</div><div class="ttdef"><b>Definition:</b> <a href="alldiff__cst_8cc_source.html#l00140">alldiff_cst.cc:140</a></div></div>
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<div class="ttc" id="aalldiff__cst_8cc_html_ad10edae0a852d72fb76afb1c77735045"><div class="ttname"><a href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">min</a></div><div class="ttdeci">int64_t min</div><div class="ttdef"><b>Definition:</b> <a href="alldiff__cst_8cc_source.html#l00139">alldiff_cst.cc:139</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a3e1cfef60e774a81f30eaddf26a3a274"><div class="ttname"><a href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a></div><div class="ttdeci">#define CHECK(condition)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00495">base/logging.h:495</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a7c0ce053b28d53aa4eaf3eb7fb71663b"><div class="ttname"><a href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a></div><div class="ttdeci">#define CHECK_EQ(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00702">base/logging.h:702</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a7cc25402ecd7591b4c39934dd656b1f9"><div class="ttname"><a href="base_2logging_8h.html#a7cc25402ecd7591b4c39934dd656b1f9">CHECK_GE</a></div><div class="ttdeci">#define CHECK_GE(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00706">base/logging.h:706</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a7e03ec13560fa94a8fea569960d7efc6"><div class="ttname"><a href="base_2logging_8h.html#a7e03ec13560fa94a8fea569960d7efc6">CHECK_GT</a></div><div class="ttdeci">#define CHECK_GT(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00707">base/logging.h:707</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_ae17f8119c108cf3070bad3449c7e0006"><div class="ttname"><a href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a></div><div class="ttdeci">#define DCHECK(condition)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00889">base/logging.h:889</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_ae4db23f10f5d4aad6d735f5a74cd6f8c"><div class="ttname"><a href="base_2logging_8h.html#ae4db23f10f5d4aad6d735f5a74cd6f8c">CHECK_LE</a></div><div class="ttdeci">#define CHECK_LE(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00704">base/logging.h:704</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_afcaa7cadd41741bb855c2ada1d2ef927"><div class="ttname"><a href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a></div><div class="ttdeci">#define VLOG(verboselevel)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00983">base/logging.h:983</a></div></div>
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<div class="ttc" id="aclassabsl_1_1_strong_vector_html_a9263000d449fdccb6cb70b303063e60b"><div class="ttname"><a href="classabsl_1_1_strong_vector.html#a9263000d449fdccb6cb70b303063e60b">absl::StrongVector::push_back</a></div><div class="ttdeci">void push_back(const value_type &x)</div><div class="ttdef"><b>Definition:</b> <a href="strong__vector_8h_source.html#l00158">strong_vector.h:158</a></div></div>
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<div class="ttc" id="aclassabsl_1_1_strong_vector_html_ac8bb3912a3ce86b15842e79d0b421204"><div class="ttname"><a href="classabsl_1_1_strong_vector.html#ac8bb3912a3ce86b15842e79d0b421204">absl::StrongVector::clear</a></div><div class="ttdeci">void clear()</div><div class="ttdef"><b>Definition:</b> <a href="strong__vector_8h_source.html#l00170">strong_vector.h:170</a></div></div>
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<div class="ttc" id="aclassabsl_1_1_strong_vector_html_af71e6c1eccbc12e9339c00a86a981a43"><div class="ttname"><a href="classabsl_1_1_strong_vector.html#af71e6c1eccbc12e9339c00a86a981a43">absl::StrongVector::back</a></div><div class="ttdeci">reference back()</div><div class="ttdef"><b>Definition:</b> <a href="strong__vector_8h_source.html#l00174">strong_vector.h:174</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_time_limit_html"><div class="ttname"><a href="classoperations__research_1_1_time_limit.html">operations_research::TimeLimit</a></div><div class="ttdoc">A simple class to enforce both an elapsed time limit and a deterministic time limit in the same threa...</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00106">time_limit.h:106</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_time_limit_html_a810d5f7aaf80cc09cf5a094e20c1aaca"><div class="ttname"><a href="classoperations__research_1_1_time_limit.html#a810d5f7aaf80cc09cf5a094e20c1aaca">operations_research::TimeLimit::LimitReached</a></div><div class="ttdeci">bool LimitReached()</div><div class="ttdoc">Returns true when the external limit is true, or the deterministic time is over the deterministic lim...</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00534">time_limit.h:534</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_glop_parameters_html"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_glop_parameters.html">operations_research::glop::GlopParameters</a></div><div class="ttdef"><b>Definition:</b> <a href="parameters_8pb_8h_source.html#l00194">parameters.pb.h:195</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_a0fe7ba825c8c6cd1efdcff6dec631093"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093">operations_research::glop::LinearProgram::SetVariableBounds</a></div><div class="ttdeci">void SetVariableBounds(ColIndex col, Fractional lower_bound, Fractional upper_bound)</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00249">lp_data.cc:249</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_a2d695f450ae446d5d9c225b991f8d88e"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a2d695f450ae446d5d9c225b991f8d88e">operations_research::glop::LinearProgram::SetCoefficient</a></div><div class="ttdeci">void SetCoefficient(RowIndex row, ColIndex col, Fractional value)</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00317">lp_data.cc:317</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_a48de416333220c0bea7759c5aa53ee14"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a48de416333220c0bea7759c5aa53ee14">operations_research::glop::LinearProgram::GetSlackVariable</a></div><div class="ttdeci">ColIndex GetSlackVariable(RowIndex row) const</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00755">lp_data.cc:755</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_a609bcb18cec39c7c43dd7a6d3a51ba81"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a609bcb18cec39c7c43dd7a6d3a51ba81">operations_research::glop::LinearProgram::IntegerVariablesList</a></div><div class="ttdeci">const std::vector< ColIndex > & IntegerVariablesList() const</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00280">lp_data.cc:280</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_a6137c2df856cf2634f9bb259d2aace2b"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a6137c2df856cf2634f9bb259d2aace2b">operations_research::glop::LinearProgram::GetObjectiveCoefficientForMinimizationVersion</a></div><div class="ttdeci">Fractional GetObjectiveCoefficientForMinimizationVersion(ColIndex col) const</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00419">lp_data.cc:419</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_a62b98dec38b6506442f9fc63f1a9b88f"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a62b98dec38b6506442f9fc63f1a9b88f">operations_research::glop::LinearProgram::SetConstraintBounds</a></div><div class="ttdeci">void SetConstraintBounds(RowIndex row, Fractional lower_bound, Fractional upper_bound)</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00309">lp_data.cc:309</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_a695ac3d8db5a986f572711f2ef3a6a39"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a695ac3d8db5a986f572711f2ef3a6a39">operations_research::glop::LinearProgram::CreateNewVariable</a></div><div class="ttdeci">ColIndex CreateNewVariable()</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00162">lp_data.cc:162</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_a74f1c824468608a9bb5fee6f10eca698"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a74f1c824468608a9bb5fee6f10eca698">operations_research::glop::LinearProgram::variable_upper_bounds</a></div><div class="ttdeci">const DenseRow & variable_upper_bounds() const</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8h_source.html#l00232">lp_data.h:232</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_a7ddcdc56f25d075e18d62ddbcd3389b2"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a7ddcdc56f25d075e18d62ddbcd3389b2">operations_research::glop::LinearProgram::SetVariableType</a></div><div class="ttdeci">void SetVariableType(ColIndex col, VariableType type)</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00236">lp_data.cc:236</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_a977f52b2e6fa6e9d6db8d8ac9cbf33c4"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#a977f52b2e6fa6e9d6db8d8ac9cbf33c4">operations_research::glop::LinearProgram::objective_coefficients</a></div><div class="ttdeci">const DenseRow & objective_coefficients() const</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8h_source.html#l00223">lp_data.h:223</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_aa23a76f0f582369176688b458cda07dc"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#aa23a76f0f582369176688b458cda07dc">operations_research::glop::LinearProgram::AddSlackVariablesWhereNecessary</a></div><div class="ttdeci">void AddSlackVariablesWhereNecessary(bool detect_integer_constraints)</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00697">lp_data.cc:697</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_aa71d36872f416feaa853788a7a7a7ef8"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#aa71d36872f416feaa853788a7a7a7ef8">operations_research::glop::LinearProgram::Clear</a></div><div class="ttdeci">void Clear()</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00134">lp_data.cc:134</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_ab5af7f232cddcd91f70be84c0d398ba9"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#ab5af7f232cddcd91f70be84c0d398ba9">operations_research::glop::LinearProgram::SetObjectiveCoefficient</a></div><div class="ttdeci">void SetObjectiveCoefficient(ColIndex col, Fractional value)</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00326">lp_data.cc:326</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_ab8efe00bb016665606d522a42543cd96"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#ab8efe00bb016665606d522a42543cd96">operations_research::glop::LinearProgram::IsVariableBinary</a></div><div class="ttdeci">bool IsVariableBinary(ColIndex col) const</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00300">lp_data.cc:300</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_ac62972ff1b21a037e56530cde67309aba5d5cd46919fa987731fb2edefe0f2a0c"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#ac62972ff1b21a037e56530cde67309aba5d5cd46919fa987731fb2edefe0f2a0c">operations_research::glop::LinearProgram::VariableType::INTEGER</a></div><div class="ttdeci">@ INTEGER</div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_acd8437353d8dc686a75c98b5897dd871"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871">operations_research::glop::LinearProgram::num_variables</a></div><div class="ttdeci">ColIndex num_variables() const</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8h_source.html#l00205">lp_data.h:205</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_ad9d564651057c77b3f2ca1293134557f"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#ad9d564651057c77b3f2ca1293134557f">operations_research::glop::LinearProgram::CreateNewConstraint</a></div><div class="ttdeci">RowIndex CreateNewConstraint()</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00191">lp_data.cc:191</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_adb3b261831be8afb947baceaba1c220b"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#adb3b261831be8afb947baceaba1c220b">operations_research::glop::LinearProgram::variable_lower_bounds</a></div><div class="ttdeci">const DenseRow & variable_lower_bounds() const</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8h_source.html#l00229">lp_data.h:229</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_adcc58612f6a1dc35ff3ffdb34188f299"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#adcc58612f6a1dc35ff3ffdb34188f299">operations_research::glop::LinearProgram::GetDimensionString</a></div><div class="ttdeci">std::string GetDimensionString() const</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00425">lp_data.cc:425</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_linear_program_html_aeeee0971281f2781c379fce7a64a5049"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049">operations_research::glop::LinearProgram::GetSparseColumn</a></div><div class="ttdeci">const SparseColumn & GetSparseColumn(ColIndex col) const</div><div class="ttdef"><b>Definition:</b> <a href="lp__data_8cc_source.html#l00409">lp_data.cc:409</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_lp_scaling_helper_html_a306cb123e8da242a6daf1c397dfe6e73"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_lp_scaling_helper.html#a306cb123e8da242a6daf1c397dfe6e73">operations_research::glop::LpScalingHelper::Scale</a></div><div class="ttdeci">void Scale(LinearProgram *lp)</div><div class="ttdef"><b>Definition:</b> <a href="lp__data__utils_8cc_source.html#l00076">lp_data_utils.cc:76</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_lp_scaling_helper_html_a5eb3e38eae8f5143d627e8c85aff8cd7"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_lp_scaling_helper.html#a5eb3e38eae8f5143d627e8c85aff8cd7">operations_research::glop::LpScalingHelper::VariableScalingFactor</a></div><div class="ttdeci">Fractional VariableScalingFactor(ColIndex col) const</div><div class="ttdef"><b>Definition:</b> <a href="lp__data__utils_8cc_source.html#l00091">lp_data_utils.cc:91</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_lp_scaling_helper_html_a60d41c66b603be0ec7517d437e5c63ec"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_lp_scaling_helper.html#a60d41c66b603be0ec7517d437e5c63ec">operations_research::glop::LpScalingHelper::UnscaleVariableValue</a></div><div class="ttdeci">Fractional UnscaleVariableValue(ColIndex col, Fractional value) const</div><div class="ttdef"><b>Definition:</b> <a href="lp__data__utils_8cc_source.html#l00120">lp_data_utils.cc:120</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_revised_simplex_html_a201108c6e8d9fb5104697bdd0a8bd085"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_revised_simplex.html#a201108c6e8d9fb5104697bdd0a8bd085">operations_research::glop::RevisedSimplex::GetVariableValue</a></div><div class="ttdeci">Fractional GetVariableValue(ColIndex col) const</div><div class="ttdef"><b>Definition:</b> <a href="revised__simplex_8cc_source.html#l00613">revised_simplex.cc:613</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_revised_simplex_html_a866a68af5afd0355fb348f7a59eeff9e"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_revised_simplex.html#a866a68af5afd0355fb348f7a59eeff9e">operations_research::glop::RevisedSimplex::Solve</a></div><div class="ttdeci">ABSL_MUST_USE_RESULT Status Solve(const LinearProgram &lp, TimeLimit *time_limit)</div><div class="ttdef"><b>Definition:</b> <a href="revised__simplex_8cc_source.html#l00134">revised_simplex.cc:134</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_revised_simplex_html_a938b612b6f9885a417fda1bf886f4b39"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_revised_simplex.html#a938b612b6f9885a417fda1bf886f4b39">operations_research::glop::RevisedSimplex::GetProblemStatus</a></div><div class="ttdeci">ProblemStatus GetProblemStatus() const</div><div class="ttdef"><b>Definition:</b> <a href="revised__simplex_8cc_source.html#l00597">revised_simplex.cc:597</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_revised_simplex_html_ac0064327c37c56b93e86a91a1d64fd96"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_revised_simplex.html#ac0064327c37c56b93e86a91a1d64fd96">operations_research::glop::RevisedSimplex::GetConstraintStatus</a></div><div class="ttdeci">ConstraintStatus GetConstraintStatus(RowIndex row) const</div><div class="ttdef"><b>Definition:</b> <a href="revised__simplex_8cc_source.html#l00641">revised_simplex.cc:641</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_revised_simplex_html_ace96e115f468d752a2fcfeea901b0f8a"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_revised_simplex.html#ace96e115f468d752a2fcfeea901b0f8a">operations_research::glop::RevisedSimplex::ClearStateForNextSolve</a></div><div class="ttdeci">void ClearStateForNextSolve()</div><div class="ttdef"><b>Definition:</b> <a href="revised__simplex_8cc_source.html#l00113">revised_simplex.cc:113</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_revised_simplex_html_ad8a718ceea92060a7f7118e2bccf4fbc"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_revised_simplex.html#ad8a718ceea92060a7f7118e2bccf4fbc">operations_research::glop::RevisedSimplex::GetNumberOfIterations</a></div><div class="ttdeci">int64_t GetNumberOfIterations() const</div><div class="ttdef"><b>Definition:</b> <a href="revised__simplex_8cc_source.html#l00605">revised_simplex.cc:605</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_revised_simplex_html_ae7202d055b6b172a8a1da4f5b136f9ea"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_revised_simplex.html#ae7202d055b6b172a8a1da4f5b136f9ea">operations_research::glop::RevisedSimplex::SetParameters</a></div><div class="ttdeci">void SetParameters(const GlopParameters &parameters)</div><div class="ttdef"><b>Definition:</b> <a href="revised__simplex_8cc_source.html#l03474">revised_simplex.cc:3474</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_strict_i_t_i_vector_html_a967a5c081ad4195a30c78dc2c0bcabf5"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5">operations_research::glop::StrictITIVector::size</a></div><div class="ttdeci">IntType size() const</div><div class="ttdef"><b>Definition:</b> <a href="lp__types_8h_source.html#l00280">lp_types.h:280</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_strict_i_t_i_vector_html_af8d7048738ceb4c753b040e6d29db79c"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c">operations_research::glop::StrictITIVector::assign</a></div><div class="ttdeci">void assign(IntType size, const T &v)</div><div class="ttdef"><b>Definition:</b> <a href="lp__types_8h_source.html#l00278">lp_types.h:278</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_mapping_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_mapping.html">operations_research::sat::CpModelMapping</a></div><div class="ttdef"><b>Definition:</b> <a href="cp__model__mapping_8h_source.html#l00065">cp_model_mapping.h:65</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_cp_model_mapping_html_a148597d78e10112b7e5e1f778de0410f"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_cp_model_mapping.html#a148597d78e10112b7e5e1f778de0410f">operations_research::sat::CpModelMapping::GetProtoVariableFromIntegerVariable</a></div><div class="ttdeci">int GetProtoVariableFromIntegerVariable(IntegerVariable var) const</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__mapping_8h_source.html#l00160">cp_model_mapping.h:160</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_feasibility_pump_html_a18206039e9f0c76f2b35907a4f6ea812"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a18206039e9f0c76f2b35907a4f6ea812">operations_research::sat::FeasibilityPump::~FeasibilityPump</a></div><div class="ttdeci">~FeasibilityPump()</div><div class="ttdef"><b>Definition:</b> <a href="feasibility__pump_8cc_source.html#l00060">feasibility_pump.cc:60</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_feasibility_pump_html_a477d40d2455543bdf702f13fa36f4ddd"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a477d40d2455543bdf702f13fa36f4ddd">operations_research::sat::FeasibilityPump::FeasibilityPump</a></div><div class="ttdeci">FeasibilityPump(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="feasibility__pump_8cc_source.html#l00038">feasibility_pump.cc:38</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_feasibility_pump_html_a67a7327915e66c0514cfa465a0475be1"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a67a7327915e66c0514cfa465a0475be1">operations_research::sat::FeasibilityPump::ConstraintIndex</a></div><div class="ttdeci">glop::RowIndex ConstraintIndex</div><div class="ttdef"><b>Definition:</b> <a href="feasibility__pump_8h_source.html#l00039">feasibility_pump.h:39</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_feasibility_pump_html_a680158afc869b1a617ca173fa0033202"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a680158afc869b1a617ca173fa0033202">operations_research::sat::FeasibilityPump::GetLPSolutionValue</a></div><div class="ttdeci">double GetLPSolutionValue(IntegerVariable variable) const</div><div class="ttdef"><b>Definition:</b> <a href="feasibility__pump_8cc_source.html#l00417">feasibility_pump.cc:417</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_feasibility_pump_html_a942f29030f08426e7e318204e987e2f7"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a942f29030f08426e7e318204e987e2f7">operations_research::sat::FeasibilityPump::Solve</a></div><div class="ttdeci">bool Solve()</div><div class="ttdef"><b>Definition:</b> <a href="feasibility__pump_8cc_source.html#l00144">feasibility_pump.cc:144</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_feasibility_pump_html_a9ad847669329f6fbccf8e4553adc7dee"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_feasibility_pump.html#a9ad847669329f6fbccf8e4553adc7dee">operations_research::sat::FeasibilityPump::GetIntegerSolutionValue</a></div><div class="ttdeci">int64_t GetIntegerSolutionValue(IntegerVariable variable) const</div><div class="ttdef"><b>Definition:</b> <a href="feasibility__pump_8cc_source.html#l00429">feasibility_pump.cc:429</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_feasibility_pump_html_aaac2d8dee4d7fc8d5e9a1b1cfc3021bc"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_feasibility_pump.html#aaac2d8dee4d7fc8d5e9a1b1cfc3021bc">operations_research::sat::FeasibilityPump::AddLinearConstraint</a></div><div class="ttdeci">void AddLinearConstraint(const LinearConstraint &ct)</div><div class="ttdef"><b>Definition:</b> <a href="feasibility__pump_8cc_source.html#l00065">feasibility_pump.cc:65</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_feasibility_pump_html_ae384be06329c4c8f8fd62af7335dae2e"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_feasibility_pump.html#ae384be06329c4c8f8fd62af7335dae2e">operations_research::sat::FeasibilityPump::SetObjectiveCoefficient</a></div><div class="ttdeci">void SetObjectiveCoefficient(IntegerVariable ivar, IntegerValue coeff)</div><div class="ttdef"><b>Definition:</b> <a href="feasibility__pump_8cc_source.html#l00091">feasibility_pump.cc:91</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_encoder_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_encoder.html">operations_research::sat::IntegerEncoder</a></div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00356">integer.h:356</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_encoder_html_a074fe196a1aaff1dd5fd73e0b3bb1f0e"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_encoder.html#a074fe196a1aaff1dd5fd73e0b3bb1f0e">operations_research::sat::IntegerEncoder::GetOrCreateLiteralAssociatedToEquality</a></div><div class="ttdeci">Literal GetOrCreateLiteralAssociatedToEquality(IntegerVariable var, IntegerValue value)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cc_source.html#l00266">integer.cc:266</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_encoder_html_a4a1c84558c01bae528113b50c0611564"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_encoder.html#a4a1c84558c01bae528113b50c0611564">operations_research::sat::IntegerEncoder::Canonicalize</a></div><div class="ttdeci">std::pair< IntegerLiteral, IntegerLiteral > Canonicalize(IntegerLiteral i_lit) const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cc_source.html#l00202">integer.cc:202</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_encoder_html_afcd4038298bec97a2f7a61274c6ef8c7"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_encoder.html#afcd4038298bec97a2f7a61274c6ef8c7">operations_research::sat::IntegerEncoder::GetOrCreateAssociatedLiteral</a></div><div class="ttdeci">Literal GetOrCreateAssociatedLiteral(IntegerLiteral i_lit)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cc_source.html#l00220">integer.cc:220</a></div></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#l00613">integer.h:613</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html_a8b6d5a25e6ad3d28a85b1924471e2cac"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#a8b6d5a25e6ad3d28a85b1924471e2cac">operations_research::sat::IntegerTrail::UpperBound</a></div><div class="ttdeci">IntegerValue UpperBound(IntegerVariable i) const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01439">integer.h:1439</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html_a9ab880b5e67213a0607c5c3935da9f08"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#a9ab880b5e67213a0607c5c3935da9f08">operations_research::sat::IntegerTrail::LevelZeroUpperBound</a></div><div class="ttdeci">IntegerValue LevelZeroUpperBound(IntegerVariable var) const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01524">integer.h:1524</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html_aa68cc40c827bff2fb311040e2b848f9b"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#aa68cc40c827bff2fb311040e2b848f9b">operations_research::sat::IntegerTrail::LevelZeroLowerBound</a></div><div class="ttdeci">IntegerValue LevelZeroLowerBound(IntegerVariable var) const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01519">integer.h:1519</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_integer_trail_html_ab857cd2aead68952d9fe92a8ad8d3ac9"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#ab857cd2aead68952d9fe92a8ad8d3ac9">operations_research::sat::IntegerTrail::LowerBound</a></div><div class="ttdeci">IntegerValue LowerBound(IntegerVariable i) const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01435">integer.h:1435</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_parameters_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html">operations_research::sat::SatParameters</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l00347">sat_parameters.pb.h:348</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_parameters_html_a18b43f42eaf13ab756b22b49fc981881"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html#a18b43f42eaf13ab756b22b49fc981881">operations_research::sat::SatParameters::fp_rounding</a></div><div class="ttdeci">::operations_research::sat::SatParameters_FPRoundingMethod fp_rounding() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l07742">sat_parameters.pb.h:7742</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_parameters_html_a30a14db0c416e43deb20a7374abe39a0"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html#a30a14db0c416e43deb20a7374abe39a0">operations_research::sat::SatParameters::NEAREST_INTEGER</a></div><div class="ttdeci">static constexpr FPRoundingMethod NEAREST_INTEGER</div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l00814">sat_parameters.pb.h:814</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_parameters_html_a32c4461508cb8e523fa91e85e5ee6f9c"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html#a32c4461508cb8e523fa91e85e5ee6f9c">operations_research::sat::SatParameters::PROPAGATION_ASSISTED</a></div><div class="ttdeci">static constexpr FPRoundingMethod PROPAGATION_ASSISTED</div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l00820">sat_parameters.pb.h:820</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_parameters_html_a7b4e91d6ccf881f4d31d3c1fff97f330"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html#a7b4e91d6ccf881f4d31d3c1fff97f330">operations_research::sat::SatParameters::LOCK_BASED</a></div><div class="ttdeci">static constexpr FPRoundingMethod LOCK_BASED</div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l00816">sat_parameters.pb.h:816</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_parameters_html_a93b17ac067d83120d7c2d3c680adf8c5"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html#a93b17ac067d83120d7c2d3c680adf8c5">operations_research::sat::SatParameters::ACTIVE_LOCK_BASED</a></div><div class="ttdeci">static constexpr FPRoundingMethod ACTIVE_LOCK_BASED</div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l00818">sat_parameters.pb.h:818</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#l00058">sat_solver.h:58</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a607d97ccada862073f297bc2d495124d"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a607d97ccada862073f297bc2d495124d">operations_research::sat::SatSolver::FinishPropagation</a></div><div class="ttdeci">bool FinishPropagation()</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00522">sat_solver.cc:522</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_a9da38c8d2910442d551db5e360423029"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#a9da38c8d2910442d551db5e360423029">operations_research::sat::SatSolver::ResetToLevelZero</a></div><div class="ttdeci">bool ResetToLevelZero()</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00530">sat_solver.cc:530</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_ab63a08713131e63e9cc4109f98ecf859"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#ab63a08713131e63e9cc4109f98ecf859">operations_research::sat::SatSolver::EnqueueDecisionAndBacktrackOnConflict</a></div><div class="ttdeci">int EnqueueDecisionAndBacktrackOnConflict(Literal true_literal)</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8cc_source.html#l00862">sat_solver.cc:862</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_solver_html_ad2a33e1d9335cce63548abed6b5c8aab"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_solver.html#ad2a33e1d9335cce63548abed6b5c8aab">operations_research::sat::SatSolver::IsModelUnsat</a></div><div class="ttdeci">bool IsModelUnsat() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__solver_8h_source.html#l00137">sat_solver.h:137</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_shared_incomplete_solution_manager_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_shared_incomplete_solution_manager.html">operations_research::sat::SharedIncompleteSolutionManager</a></div><div class="ttdef"><b>Definition:</b> <a href="synchronization_8h_source.html#l00155">synchronization.h:155</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_shared_incomplete_solution_manager_html_a058ba66ef63b5c36a5586b0151a75609"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_shared_incomplete_solution_manager.html#a058ba66ef63b5c36a5586b0151a75609">operations_research::sat::SharedIncompleteSolutionManager::AddNewSolution</a></div><div class="ttdeci">void AddNewSolution(const std::vector< double > &lp_solution)</div><div class="ttdef"><b>Definition:</b> <a href="synchronization_8cc_source.html#l00099">synchronization.cc:99</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_trail_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_trail.html">operations_research::sat::Trail</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00235">sat_base.h:235</a></div></div>
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<div class="ttc" id="acp__model_8pb_8h_html"><div class="ttname"><a href="cp__model_8pb_8h.html">cp_model.pb.h</a></div></div>
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<div class="ttc" id="acp__model__fz__solver_8cc_html_a10a1eab179b472c030bdc2a2efef7219"><div class="ttname"><a href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a></div><div class="ttdeci">SatParameters parameters</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__fz__solver_8cc_source.html#l00120">cp_model_fz_solver.cc:120</a></div></div>
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<div class="ttc" id="ademon__profiler_8cc_html_a05da18ca9c7b657a4a6ea24e07c9b695"><div class="ttname"><a href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a></div><div class="ttdeci">const Constraint * ct</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="ademon__profiler_8cc_html_ac072af30c4ffbc834bb4c681f6ecb514"><div class="ttname"><a href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a></div><div class="ttdeci">int64_t value</div><div class="ttdef"><b>Definition:</b> <a href="demon__profiler_8cc_source.html#l00044">demon_profiler.cc:44</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#l01874">expr_array.cc:1874</a></div></div>
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<div class="ttc" id="afeasibility__pump_8h_html"><div class="ttname"><a href="feasibility__pump_8h.html">feasibility_pump.h</a></div></div>
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<div class="ttc" id="ag__gurobi_8cc_html_a2237393c7ae7ad7344c9885066d5ab6d"><div class="ttname"><a href="g__gurobi_8cc.html#a2237393c7ae7ad7344c9885066d5ab6d">status</a></div><div class="ttdeci">absl::Status status</div><div class="ttdef"><b>Definition:</b> <a href="g__gurobi_8cc_source.html#l00035">g_gurobi.cc:35</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#l00274">gurobi_interface.cc:274</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="aintegral__types_8h_html"><div class="ttname"><a href="integral__types_8h.html">integral_types.h</a></div></div>
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<div class="ttc" id="alp__types_8h_html"><div class="ttname"><a href="lp__types_8h.html">lp_types.h</a></div></div>
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<div class="ttc" id="amarkowitz_8cc_html_aa9d6c98fdf8d89b0e2321fda02adc82c"><div class="ttname"><a href="markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c">col</a></div><div class="ttdeci">ColIndex col</div><div class="ttdef"><b>Definition:</b> <a href="markowitz_8cc_source.html#l00183">markowitz.cc:183</a></div></div>
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<div class="ttc" id="amarkowitz_8cc_html_aea35f36ba98d5bbd8d033382f50c9e52"><div class="ttname"><a href="markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52">row</a></div><div class="ttdeci">RowIndex row</div><div class="ttdef"><b>Definition:</b> <a href="markowitz_8cc_source.html#l00182">markowitz.cc:182</a></div></div>
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<div class="ttc" id="anamespacegtl_html_a73f41ac11336b94768fdd41594153d59"><div class="ttname"><a href="namespacegtl.html#a73f41ac11336b94768fdd41594153d59">gtl::FindOrDie</a></div><div class="ttdeci">const Collection::value_type::second_type & FindOrDie(const Collection &collection, const typename Collection::value_type::first_type &key)</div><div class="ttdef"><b>Definition:</b> <a href="map__util_8h_source.html#l00206">map_util.h:206</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_a0f6bd47b8956b59589718bd40b1cf8bc"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#a0f6bd47b8956b59589718bd40b1cf8bc">operations_research::glop::ConstraintStatus</a></div><div class="ttdeci">ConstraintStatus</div><div class="ttdef"><b>Definition:</b> <a href="lp__types_8h_source.html#l00231">lp_types.h:231</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_a2b83a25cb4fd203c57a7155699fab246"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#a2b83a25cb4fd203c57a7155699fab246">operations_research::glop::ColIndexVector</a></div><div class="ttdeci">std::vector< ColIndex > ColIndexVector</div><div class="ttdef"><b>Definition:</b> <a href="lp__types_8h_source.html#l00312">lp_types.h:312</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_a733947145e3e1631165b618b05c9ccb7"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7">operations_research::glop::Fractional</a></div><div class="ttdeci">double Fractional</div><div class="ttdef"><b>Definition:</b> <a href="lp__types_8h_source.html#l00078">lp_types.h:78</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_a884f3b645d22471e5ed3320e182cd493a0beacd9ca195de65e685252f1b46b954"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493a0beacd9ca195de65e685252f1b46b954">operations_research::glop::ProblemStatus::IMPRECISE</a></div><div class="ttdeci">@ IMPRECISE</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_a884f3b645d22471e5ed3320e182cd493a2dcc8f5d91cb2aa2065b8305bf2d5cbd"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493a2dcc8f5d91cb2aa2065b8305bf2d5cbd">operations_research::glop::ProblemStatus::PRIMAL_FEASIBLE</a></div><div class="ttdeci">@ PRIMAL_FEASIBLE</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_a884f3b645d22471e5ed3320e182cd493a57ad14e7a035f33c8ba6c0ea9ea23caa"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493a57ad14e7a035f33c8ba6c0ea9ea23caa">operations_research::glop::ProblemStatus::DUAL_FEASIBLE</a></div><div class="ttdeci">@ DUAL_FEASIBLE</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_a884f3b645d22471e5ed3320e182cd493a7850fcfea005b86b2a3fa0d4293c5ee0"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493a7850fcfea005b86b2a3fa0d4293c5ee0">operations_research::glop::ProblemStatus::PRIMAL_INFEASIBLE</a></div><div class="ttdeci">@ PRIMAL_INFEASIBLE</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_a884f3b645d22471e5ed3320e182cd493af00c8dbdd6e1f11bdae06be94277d293"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#a884f3b645d22471e5ed3320e182cd493af00c8dbdd6e1f11bdae06be94277d293">operations_research::glop::ProblemStatus::OPTIMAL</a></div><div class="ttdeci">@ OPTIMAL</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_af9a790b7e8c5b0c6d55b336177378e78"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78">operations_research::glop::kInfinity</a></div><div class="ttdeci">const double kInfinity</div><div class="ttdef"><b>Definition:</b> <a href="lp__types_8h_source.html#l00084">lp_types.h:84</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a1e30e51173c7e43a8c0b4668d5e3f050"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a1e30e51173c7e43a8c0b4668d5e3f050">operations_research::sat::IntTypeAbs</a></div><div class="ttdeci">IntType IntTypeAbs(IntType t)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00079">integer.h:79</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a7f1ac774d4646a83631f8117f4ea03f5"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a7f1ac774d4646a83631f8117f4ea03f5">operations_research::sat::PositiveVariable</a></div><div class="ttdeci">IntegerVariable PositiveVariable(IntegerVariable i)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00143">integer.h:143</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_aae43e784db06c0974ce59ebbe8dd2b22"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#aae43e784db06c0974ce59ebbe8dd2b22">operations_research::sat::NegationOf</a></div><div class="ttdeci">std::vector< IntegerVariable > NegationOf(const std::vector< IntegerVariable > &vars)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8cc_source.html#l00030">integer.cc:30</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_ae2544d2a3a5ef4c78f8e5891f104ab41"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#ae2544d2a3a5ef4c78f8e5891f104ab41">operations_research::sat::VariableIsPositive</a></div><div class="ttdeci">bool VariableIsPositive(IntegerVariable i)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00139">integer.h:139</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_aed77a1a7675c2f8568529a5a16247ec1"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#aed77a1a7675c2f8568529a5a16247ec1">operations_research::sat::ToDouble</a></div><div class="ttdeci">double ToDouble(IntegerValue value)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00071">integer.h:71</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">Collection of objects used to extend the Constraint Solver library.</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="anamespaceoperations__research_html_a111f44b9b9cf67a8e8d83794ac9f5291"><div class="ttname"><a href="namespaceoperations__research.html#a111f44b9b9cf67a8e8d83794ac9f5291">operations_research::CapAdd</a></div><div class="ttdeci">int64_t CapAdd(int64_t x, int64_t y)</div><div class="ttdef"><b>Definition:</b> <a href="saturated__arithmetic_8h_source.html#l00126">saturated_arithmetic.h:126</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html_aa64bf49d041052c7cb3f40f7496d7534"><div class="ttname"><a href="namespaceoperations__research.html#aa64bf49d041052c7cb3f40f7496d7534">operations_research::CapProd</a></div><div class="ttdeci">int64_t CapProd(int64_t x, int64_t y)</div><div class="ttdef"><b>Definition:</b> <a href="saturated__arithmetic_8h_source.html#l00235">saturated_arithmetic.h:235</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="asaturated__arithmetic_8h_html"><div class="ttname"><a href="saturated__arithmetic_8h.html">saturated_arithmetic.h</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_integer_domains_html"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_integer_domains.html">operations_research::sat::IntegerDomains</a></div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00298">integer.h:298</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_integer_literal_html_a3e2eb445631727dd4abf1d5343f16b2f"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_integer_literal.html#a3e2eb445631727dd4abf1d5343f16b2f">operations_research::sat::IntegerLiteral::LowerOrEqual</a></div><div class="ttdeci">static IntegerLiteral LowerOrEqual(IntegerVariable i, IntegerValue bound)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01383">integer.h:1383</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_integer_literal_html_a6c233aafac25ea66d69de93a83c9be63"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_integer_literal.html#a6c233aafac25ea66d69de93a83c9be63">operations_research::sat::IntegerLiteral::GreaterOrEqual</a></div><div class="ttdeci">static IntegerLiteral GreaterOrEqual(IntegerVariable i, IntegerValue bound)</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l01377">integer.h:1377</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_linear_constraint_html"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_linear_constraint.html">operations_research::sat::LinearConstraint</a></div><div class="ttdef"><b>Definition:</b> <a href="sat_2linear__constraint_8h_source.html#l00033">sat/linear_constraint.h:33</a></div></div>
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<div class="ttc" id="avariable__and__expressions_8cc_html_a2091cd7d80fdd31762020bce86138587"><div class="ttname"><a href="variable__and__expressions_8cc.html#a2091cd7d80fdd31762020bce86138587">coeff</a></div><div class="ttdeci">const double coeff</div><div class="ttdef"><b>Definition:</b> <a href="variable__and__expressions_8cc_source.html#l00104">variable_and_expressions.cc:104</a></div></div>
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