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<div class="headertitle"><div class="title">linear_constraint_manager.cc</div></div>
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<a href="linear__constraint__manager_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="linear__constraint__manager_8h.html">ortools/sat/linear_constraint_manager.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 <algorithm></span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include <cmath></span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include <limits></span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include <utility></span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> </div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include "absl/container/flat_hash_set.h"</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="strong__vector_8h.html">ortools/base/strong_vector.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_2linear__constraint_8h.html">ortools/sat/linear_constraint.h</a>"</span></div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> </div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</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="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="keyword">namespace </span>sat {</div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> </div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="keyword">namespace </span>{</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">const</span> LinearConstraintManager::ConstraintIndex kInvalidConstraintIndex(-1);</div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> </div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="keywordtype">size_t</span> ComputeHashOfTerms(<span class="keyword">const</span> LinearConstraint& <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>) {</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <a class="code hl_define" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(std::is_sorted(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.vars.begin(), <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.vars.end()));</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="matrix__utils_8cc.html#a95d4078c018ac04247ee3785eab30e7b">hash</a> = 0;</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">int</span> num_terms = <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="l00037" name="l00037"></a><span class="lineno"> 37</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_terms; ++i) {</div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <a class="code hl_variable" href="matrix__utils_8cc.html#a95d4078c018ac04247ee3785eab30e7b">hash</a> = <a class="code hl_function" href="namespaceutil__hash.html#a17715af1c1bc575a706eb167371b81e9">util_hash::Hash</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.vars[i].value(), <a class="code hl_variable" href="matrix__utils_8cc.html#a95d4078c018ac04247ee3785eab30e7b">hash</a>);</div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <a class="code hl_variable" href="matrix__utils_8cc.html#a95d4078c018ac04247ee3785eab30e7b">hash</a> = <a class="code hl_function" href="namespaceutil__hash.html#a17715af1c1bc575a706eb167371b81e9">util_hash::Hash</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.coeffs[i].value(), <a class="code hl_variable" href="matrix__utils_8cc.html#a95d4078c018ac04247ee3785eab30e7b">hash</a>);</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> }</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keywordflow">return</span> <a class="code hl_variable" href="matrix__utils_8cc.html#a95d4078c018ac04247ee3785eab30e7b">hash</a>;</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span>}</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> </div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span>} <span class="comment">// namespace</span></div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> </div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a8713b8b4baa0b0c2c54907a1fb63c88f"> 46</a></span>std::string <a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a8713b8b4baa0b0c2c54907a1fb63c88f">LinearConstraintManager::Statistics</a>()<span class="keyword"> const </span>{</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> std::string result;</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> absl::StrAppend(&result, <span class="stringliteral">" managed constraints: "</span>, constraint_infos_.size(),</div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="stringliteral">"\n"</span>);</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keywordflow">if</span> (num_merged_constraints_ > 0) {</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> absl::StrAppend(&result, <span class="stringliteral">" merged constraints: "</span>, num_merged_constraints_,</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="stringliteral">"\n"</span>);</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> }</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keywordflow">if</span> (num_shortened_constraints_ > 0) {</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> absl::StrAppend(</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> &result, <span class="stringliteral">" shortened constraints: "</span>, num_shortened_constraints_, <span class="stringliteral">"\n"</span>);</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> }</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="keywordflow">if</span> (num_splitted_constraints_ > 0) {</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> absl::StrAppend(</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> &result, <span class="stringliteral">" splitted constraints: "</span>, num_splitted_constraints_, <span class="stringliteral">"\n"</span>);</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> }</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keywordflow">if</span> (num_coeff_strenghtening_ > 0) {</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> absl::StrAppend(&result,</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="stringliteral">" coefficient strenghtenings: "</span>, num_coeff_strenghtening_,</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="stringliteral">"\n"</span>);</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> }</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="keywordflow">if</span> (num_simplifications_ > 0) {</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> absl::StrAppend(&result, <span class="stringliteral">" num simplifications: "</span>, num_simplifications_,</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="stringliteral">"\n"</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> absl::StrAppend(&result, <span class="stringliteral">" total cuts added: "</span>, num_cuts_, <span class="stringliteral">" (out of "</span>,</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> num_add_cut_calls_, <span class="stringliteral">" calls)\n"</span>);</div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& entry : type_to_num_cuts_) {</div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> absl::StrAppend(&result, <span class="stringliteral">" - '"</span>, entry.first, <span class="stringliteral">"': "</span>, entry.second, <span class="stringliteral">"\n"</span>);</div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> }</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keywordflow">if</span> (!result.empty()) result.pop_back(); <span class="comment">// Remove last \n.</span></div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <span class="keywordflow">return</span> result;</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span>}</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> </div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span><span class="keywordtype">void</span> LinearConstraintManager::RescaleActiveCounts(<span class="keyword">const</span> <span class="keywordtype">double</span> scaling_factor) {</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keywordflow">for</span> (ConstraintIndex i(0); i < constraint_infos_.size(); ++i) {</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> constraint_infos_[i].active_count *= scaling_factor;</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> }</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> constraint_active_count_increase_ *= scaling_factor;</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(2) << <span class="stringliteral">"Rescaled active counts by "</span> << scaling_factor;</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> </div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span><span class="keywordtype">bool</span> LinearConstraintManager::MaybeRemoveSomeInactiveConstraints(</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> glop::BasisState* solution_state) {</div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keywordflow">if</span> (solution_state->IsEmpty()) <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// Mainly to simplify tests.</span></div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="keyword">const</span> glop::RowIndex num_rows(lp_constraints_.size());</div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keyword">const</span> glop::ColIndex num_cols =</div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> solution_state->statuses.size() - <a class="code hl_function" href="namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524">RowToColIndex</a>(num_rows);</div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keywordtype">int</span> new_size = 0;</div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_rows; ++i) {</div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="keyword">const</span> ConstraintIndex constraint_index = lp_constraints_[i];</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="comment">// Constraints that are not tight in the current solution have a basic</span></div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="comment">// status. We remove the ones that have been inactive in the last recent</span></div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="comment">// solves.</span></div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="comment">// TODO(user): More advanced heuristics might perform better, I didn't do</span></div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="comment">// a lot of tuning experiments yet.</span></div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keyword">const</span> <a class="code hl_enumeration" href="namespaceoperations__research_1_1glop.html#aaddc7ccf1acc75842c2129ee4590d358">glop::VariableStatus</a> row_status =</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> solution_state->statuses[num_cols + glop::ColIndex(i)];</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keywordflow">if</span> (row_status == <a class="code hl_enumvalue" href="namespaceoperations__research_1_1glop.html#aaddc7ccf1acc75842c2129ee4590d358ae4ac03f6c9f00665644e868dd1fb9f1e">glop::VariableStatus::BASIC</a>) {</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> constraint_infos_[constraint_index].inactive_count++;</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keywordflow">if</span> (constraint_infos_[constraint_index].inactive_count ></div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> sat_parameters_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a2d1ab36b4d143fee5414201b5a32b7a7">max_consecutive_inactive_count</a>()) {</div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> constraint_infos_[constraint_index].is_in_lp = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <span class="keywordflow">continue</span>; <span class="comment">// Remove it.</span></div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> }</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="comment">// Only count consecutive inactivities.</span></div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> constraint_infos_[constraint_index].inactive_count = 0;</div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> }</div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> </div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> lp_constraints_[new_size] = constraint_index;</div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> solution_state->statuses[num_cols + glop::ColIndex(new_size)] = row_status;</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> new_size++;</div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> }</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_removed_constraints = lp_constraints_.size() - new_size;</div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> lp_constraints_.resize(new_size);</div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> solution_state->statuses.resize(num_cols + glop::ColIndex(new_size));</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keywordflow">if</span> (num_removed_constraints > 0) {</div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(2) << <span class="stringliteral">"Removed "</span> << num_removed_constraints << <span class="stringliteral">" constraints"</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="keywordflow">return</span> num_removed_constraints > 0;</div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span>}</div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> </div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span><span class="comment">// Because sometimes we split a == constraint in two (>= and <=), it makes sense</span></div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span><span class="comment">// to detect duplicate constraints and merge bounds. This is also relevant if</span></div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span><span class="comment">// we regenerate identical cuts for some reason.</span></div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a40e3f0f21a2c16b673c84f734ba6d095"> 134</a></span>LinearConstraintManager::ConstraintIndex <a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a40e3f0f21a2c16b673c84f734ba6d095">LinearConstraintManager::Add</a>(</div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</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>, <span class="keywordtype">bool</span>* added) {</div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(!<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.vars.empty());</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#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a7e57f3af8ac7a8b8030adb1019cf2b44">NoDuplicateVariable</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>));</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> SimplifyConstraint(&<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ae3c495e2e05950c578b01976701f9b2a">DivideByGCD</a>(&<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a6b1886825a71bbbe156439e2e1dacbc2">CanonicalizeConstraint</a>(&<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <a class="code hl_define" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(<a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a1afbe8d162a9cba17a520812ec6d3dd4">DebugCheckConstraint</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>));</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> <span class="comment">// If an identical constraint exists, only updates its bound.</span></div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> key = ComputeHashOfTerms(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</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> (<a class="code hl_function" href="namespacegtl.html#aae28e97bd1fa93cb0032642550da7455">gtl::ContainsKey</a>(equiv_constraints_, key)) {</div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="keyword">const</span> ConstraintIndex ct_index = equiv_constraints_[key];</div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <span class="keywordflow">if</span> (constraint_infos_[ct_index].constraint.vars == <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.vars &&</div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> constraint_infos_[ct_index].constraint.coeffs == <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.coeffs) {</div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordflow">if</span> (added != <span class="keyword">nullptr</span>) *added = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.lb > constraint_infos_[ct_index].constraint.lb) {</div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> <span class="keywordflow">if</span> (constraint_infos_[ct_index].is_in_lp) current_lp_is_changed_ = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> constraint_infos_[ct_index].constraint.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="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="keywordflow">if</span> (added != <span class="keyword">nullptr</span>) *added = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> }</div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.ub < constraint_infos_[ct_index].constraint.ub) {</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keywordflow">if</span> (constraint_infos_[ct_index].is_in_lp) current_lp_is_changed_ = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> constraint_infos_[ct_index].constraint.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="l00158" name="l00158"></a><span class="lineno"> 158</span> <span class="keywordflow">if</span> (added != <span class="keyword">nullptr</span>) *added = <span class="keyword">true</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> ++num_merged_constraints_;</div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> <span class="keywordflow">return</span> ct_index;</div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> }</div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> }</div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</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> (added != <span class="keyword">nullptr</span>) *added = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="keyword">const</span> ConstraintIndex ct_index(constraint_infos_.size());</div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_linear_constraint_manager_1_1_constraint_info.html">ConstraintInfo</a> ct_info;</div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> ct_info.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_linear_constraint_manager_1_1_constraint_info.html#a032d3e55dc38f64c8914c8a6f9d3ba66">constraint</a> = std::move(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> ct_info.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_linear_constraint_manager_1_1_constraint_info.html#a2a897122b37c5a906205687aecdb627b">l2_norm</a> = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a89bc8a9319a176bb809f209617fa10ca">ComputeL2Norm</a>(ct_info.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_linear_constraint_manager_1_1_constraint_info.html#a032d3e55dc38f64c8914c8a6f9d3ba66">constraint</a>);</div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> ct_info.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_linear_constraint_manager_1_1_constraint_info.html#a2b07c49e916f21a26aa731f4db68785a">hash</a> = key;</div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> equiv_constraints_[key] = ct_index;</div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> ct_info.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_linear_constraint_manager_1_1_constraint_info.html#a64cbd77208a462a2d718ed0be41d4b6c">active_count</a> = constraint_active_count_increase_;</div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> constraint_infos_.push_back(std::move(ct_info));</div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> <span class="keywordflow">return</span> ct_index;</div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span>}</div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> </div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span><span class="keywordtype">void</span> LinearConstraintManager::ComputeObjectiveParallelism(</div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="keyword">const</span> ConstraintIndex ct_index) {</div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(objective_is_defined_);</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <span class="comment">// lazy computation of objective norm.</span></div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> <span class="keywordflow">if</span> (!objective_norm_computed_) {</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> objective_l2_norm_ = std::sqrt(sum_of_squared_objective_coeffs_);</div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> objective_norm_computed_ = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> }</div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <a class="code hl_define" href="base_2logging_8h.html#a7e03ec13560fa94a8fea569960d7efc6">CHECK_GT</a>(objective_l2_norm_, 0.0);</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> </div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> constraint_infos_[ct_index].objective_parallelism_computed = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> <span class="keywordflow">if</span> (constraint_infos_[ct_index].l2_norm == 0.0) {</div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> constraint_infos_[ct_index].objective_parallelism = 0.0;</div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> }</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> <span class="keyword">const</span> LinearConstraint& lc = constraint_infos_[ct_index].constraint;</div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keywordtype">double</span> unscaled_objective_parallelism = 0.0;</div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < lc.vars.size(); ++i) {</div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> <span class="keyword">const</span> IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = lc.vars[i];</div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> <span class="keyword">const</span> <span class="keyword">auto</span> it = objective_map_.find(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> <span class="keywordflow">if</span> (it == objective_map_.end()) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> unscaled_objective_parallelism += it->second * <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aed77a1a7675c2f8568529a5a16247ec1">ToDouble</a>(lc.coeffs[i]);</div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> }</div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> <span class="keyword">const</span> <span class="keywordtype">double</span> objective_parallelism =</div>
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<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> unscaled_objective_parallelism /</div>
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> (constraint_infos_[ct_index].l2_norm * objective_l2_norm_);</div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> constraint_infos_[ct_index].objective_parallelism =</div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> std::abs(objective_parallelism);</div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span>}</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><span class="comment">// Same as Add(), but logs some information about the newly added constraint.</span></div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span><span class="comment">// Cuts are also handled slightly differently than normal constraints.</span></div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a9456bb31790e4dae791914e3c065b460"> 210</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a9456bb31790e4dae791914e3c065b460">LinearConstraintManager::AddCut</a>(</div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</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>, std::string type_name,</div>
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> <span class="keyword">const</span> <a class="code hl_class" href="classabsl_1_1_strong_vector.html">absl::StrongVector<IntegerVariable, double></a>& lp_solution,</div>
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> std::string extra_info) {</div>
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<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> ++num_add_cut_calls_;</div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.vars.empty()) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> </div>
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<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> <span class="keyword">const</span> <span class="keywordtype">double</span> activity = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aea18a909121c1c2ba4a818298611f0b2">ComputeActivity</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>, lp_solution);</div>
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<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> <span class="keyword">const</span> <span class="keywordtype">double</span> violation =</div>
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<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(activity - <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), <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) - activity);</div>
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<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> <span class="keyword">const</span> <span class="keywordtype">double</span> l2_norm = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a89bc8a9319a176bb809f209617fa10ca">ComputeL2Norm</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</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> <span class="comment">// Only add cut with sufficient efficacy.</span></div>
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<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> <span class="keywordflow">if</span> (violation / l2_norm < 1e-5) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> </div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> <span class="keywordtype">bool</span> added = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> <span class="keyword">const</span> ConstraintIndex ct_index = <a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a40e3f0f21a2c16b673c84f734ba6d095">Add</a>(std::move(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>), &added);</div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> </div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="comment">// We only mark the constraint as a cut if it is not an update of an already</span></div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <span class="comment">// existing one.</span></div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> <span class="keywordflow">if</span> (!added) <span class="keywordflow">return</span> <span class="keyword">false</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">// TODO(user): Use better heuristic here for detecting good cuts and mark</span></div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <span class="comment">// them undeletable.</span></div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> constraint_infos_[ct_index].is_deletable = <span class="keyword">true</span>;</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> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(1) << <span class="stringliteral">"Cut '"</span> << type_name << <span class="stringliteral">"'"</span></div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> << <span class="stringliteral">" size="</span> << constraint_infos_[ct_index].constraint.vars.size()</div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> << <span class="stringliteral">" max_magnitude="</span></div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> << <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#acb294633c7688f918623b3b0e09aec43">ComputeInfinityNorm</a>(constraint_infos_[ct_index].constraint)</div>
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<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> << <span class="stringliteral">" norm="</span> << l2_norm << <span class="stringliteral">" violation="</span> << violation</div>
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<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> << <span class="stringliteral">" eff="</span> << violation / l2_norm << <span class="stringliteral">" "</span> << extra_info;</div>
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<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> </div>
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<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> num_cuts_++;</div>
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> num_deletable_constraints_++;</div>
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<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> type_to_num_cuts_[type_name]++;</div>
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<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span>}</div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> </div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span><span class="keywordtype">void</span> LinearConstraintManager::PermanentlyRemoveSomeConstraints() {</div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> std::vector<double> deletable_constraint_counts;</div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> <span class="keywordflow">for</span> (ConstraintIndex i(0); i < constraint_infos_.size(); ++i) {</div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> <span class="keywordflow">if</span> (constraint_infos_[i].is_deletable && !constraint_infos_[i].is_in_lp) {</div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> deletable_constraint_counts.push_back(constraint_infos_[i].active_count);</div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> }</div>
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<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> }</div>
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<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> <span class="keywordflow">if</span> (deletable_constraint_counts.empty()) <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> std::sort(deletable_constraint_counts.begin(),</div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> deletable_constraint_counts.end());</div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> </div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> <span class="comment">// We will delete the oldest (in the order they where added) cleanup target</span></div>
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<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> <span class="comment">// constraints with a count lower or equal to this.</span></div>
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<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> <span class="keywordtype">double</span> active_count_threshold = std::numeric_limits<double>::infinity();</div>
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<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> <span class="keywordflow">if</span> (sat_parameters_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#aa0899a87b632919615f335bdf22f72ec">cut_cleanup_target</a>() <</div>
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<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> deletable_constraint_counts.size()) {</div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> active_count_threshold =</div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> deletable_constraint_counts[sat_parameters_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#aa0899a87b632919615f335bdf22f72ec">cut_cleanup_target</a>()];</div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> }</div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> </div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> ConstraintIndex new_size(0);</div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> equiv_constraints_.clear();</div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> <a class="code hl_class" href="classabsl_1_1_strong_vector.html">absl::StrongVector<ConstraintIndex, ConstraintIndex></a> index_mapping(</div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> constraint_infos_.size());</div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> <span class="keywordtype">int</span> num_deleted_constraints = 0;</div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> <span class="keywordflow">for</span> (ConstraintIndex i(0); i < constraint_infos_.size(); ++i) {</div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> <span class="keywordflow">if</span> (constraint_infos_[i].is_deletable && !constraint_infos_[i].is_in_lp &&</div>
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> constraint_infos_[i].active_count <= active_count_threshold &&</div>
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> num_deleted_constraints < sat_parameters_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#aa0899a87b632919615f335bdf22f72ec">cut_cleanup_target</a>()) {</div>
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> ++num_deleted_constraints;</div>
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> }</div>
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> </div>
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<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> <span class="keywordflow">if</span> (i != new_size) {</div>
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<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> constraint_infos_[new_size] = std::move(constraint_infos_[i]);</div>
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<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> }</div>
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<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> index_mapping[i] = new_size;</div>
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<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> </div>
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<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> <span class="comment">// Make sure we recompute the hash_map of identical constraints.</span></div>
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<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> equiv_constraints_[constraint_infos_[new_size].hash] = new_size;</div>
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<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> new_size++;</div>
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<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> }</div>
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<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span> constraint_infos_.resize(new_size.value());</div>
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<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> </div>
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<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> <span class="comment">// Also update lp_constraints_</span></div>
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<div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < lp_constraints_.size(); ++i) {</div>
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<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> lp_constraints_[i] = index_mapping[lp_constraints_[i]];</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> <span class="keywordflow">if</span> (num_deleted_constraints > 0) {</div>
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<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(1) << <span class="stringliteral">"Constraint manager cleanup: #deleted:"</span></div>
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<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> << num_deleted_constraints;</div>
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<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span> }</div>
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<div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span> num_deletable_constraints_ -= num_deleted_constraints;</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> </div>
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<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a36295bfe464bcdb6465fe796a43d02bf"> 305</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a36295bfe464bcdb6465fe796a43d02bf">LinearConstraintManager::SetObjectiveCoefficient</a>(IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>,</div>
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<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> IntegerValue coeff) {</div>
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<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> <span class="keywordflow">if</span> (coeff == IntegerValue(0)) <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> objective_is_defined_ = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</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="l00310" name="l00310"></a><span class="lineno"> 310</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="l00311" name="l00311"></a><span class="lineno"> 311</span> coeff = -coeff;</div>
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<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> }</div>
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<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> <span class="keyword">const</span> <span class="keywordtype">double</span> coeff_as_double = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aed77a1a7675c2f8568529a5a16247ec1">ToDouble</a>(coeff);</div>
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<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> <span class="keyword">const</span> <span class="keyword">auto</span> insert = objective_map_.insert({<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, coeff_as_double});</div>
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<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(insert.second)</div>
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<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> << <span class="stringliteral">"SetObjectiveCoefficient() called twice with same variable"</span>;</div>
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<div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> sum_of_squared_objective_coeffs_ += coeff_as_double * coeff_as_double;</div>
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<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span>}</div>
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<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> </div>
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<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span><span class="keywordtype">bool</span> LinearConstraintManager::SimplifyConstraint(<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="l00321" name="l00321"></a><span class="lineno"> 321</span> <span class="keywordtype">bool</span> term_changed = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> </div>
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<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span> IntegerValue min_sum(0);</div>
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<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> IntegerValue max_sum(0);</div>
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<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> IntegerValue max_magnitude(0);</div>
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<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> <span class="keywordtype">int</span> new_size = 0;</div>
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<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_terms = <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="l00328" name="l00328"></a><span class="lineno"> 328</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_terms; ++i) {</div>
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<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</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[i];</div>
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<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> <span class="keyword">const</span> IntegerValue coeff = <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="l00331" name="l00331"></a><span class="lineno"> 331</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#aa68cc40c827bff2fb311040e2b848f9b">LevelZeroLowerBound</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</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#a9ab880b5e67213a0607c5c3935da9f08">LevelZeroUpperBound</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> </div>
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<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> <span class="comment">// For now we do not change ct, but just compute its new_size if we where</span></div>
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<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> <span class="comment">// to remove a fixed term.</span></div>
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<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> <span class="keywordflow">if</span> (lb == ub) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> ++new_size;</div>
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<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> </div>
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<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> max_magnitude = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(max_magnitude, <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1e30e51173c7e43a8c0b4668d5e3f050">IntTypeAbs</a>(coeff));</div>
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<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> <span class="keywordflow">if</span> (coeff > 0.0) {</div>
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<div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span> min_sum += coeff * lb;</div>
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<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span> max_sum += coeff * ub;</div>
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<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> min_sum += coeff * ub;</div>
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<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> max_sum += coeff * lb;</div>
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<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> }</div>
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<div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> }</div>
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<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span> </div>
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<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span> <span class="comment">// Shorten the constraint if needed.</span></div>
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<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> <span class="keywordflow">if</span> (new_size < num_terms) {</div>
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<div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span> term_changed = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span> ++num_shortened_constraints_;</div>
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<div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> new_size = 0;</div>
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<div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_terms; ++i) {</div>
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<div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</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[i];</div>
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<div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span> <span class="keyword">const</span> IntegerValue coeff = <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="l00357" name="l00357"></a><span class="lineno"> 357</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#aa68cc40c827bff2fb311040e2b848f9b">LevelZeroLowerBound</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</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#a9ab880b5e67213a0607c5c3935da9f08">LevelZeroUpperBound</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> <span class="keywordflow">if</span> (lb == ub) {</div>
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<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> <span class="keyword">const</span> IntegerValue rhs_adjust = lb * coeff;</div>
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<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span> <span class="keywordflow">if</span> (<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#a355a62f25cfadeccfb164ab9fb867c81">kMinIntegerValue</a>) <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->lb -= rhs_adjust;</div>
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<div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->ub < <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1227e67513602591fb959e35c9de66e8">kMaxIntegerValue</a>) <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->ub -= rhs_adjust;</div>
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<div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span> <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span> }</div>
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<div class="line"><a id="l00365" name="l00365"></a><span class="lineno"> 365</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->vars[new_size] = <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>;</div>
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<div class="line"><a id="l00366" name="l00366"></a><span class="lineno"> 366</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->coeffs[new_size] = coeff;</div>
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<div class="line"><a id="l00367" name="l00367"></a><span class="lineno"> 367</span> ++new_size;</div>
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<div class="line"><a id="l00368" name="l00368"></a><span class="lineno"> 368</span> }</div>
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<div class="line"><a id="l00369" name="l00369"></a><span class="lineno"> 369</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->vars.resize(new_size);</div>
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<div class="line"><a id="l00370" name="l00370"></a><span class="lineno"> 370</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->coeffs.resize(new_size);</div>
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<div class="line"><a id="l00371" name="l00371"></a><span class="lineno"> 371</span> }</div>
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<div class="line"><a id="l00372" name="l00372"></a><span class="lineno"> 372</span> </div>
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<div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span> <span class="comment">// Relax the bound if needed, note that this doesn't require a change to</span></div>
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<div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span> <span class="comment">// the equiv map.</span></div>
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<div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span> <span class="keywordflow">if</span> (min_sum >= <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>->lb = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a355a62f25cfadeccfb164ab9fb867c81">kMinIntegerValue</a>;</div>
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<div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span> <span class="keywordflow">if</span> (max_sum <= ct->ub) <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->ub = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1227e67513602591fb959e35c9de66e8">kMaxIntegerValue</a>;</div>
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<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> </div>
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<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> <span class="comment">// Clear constraints that are always true.</span></div>
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<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span> <span class="comment">// We rely on the deletion code to remove them eventually.</span></div>
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<div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> <span class="keywordflow">if</span> (<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#a355a62f25cfadeccfb164ab9fb867c81">kMinIntegerValue</a> && <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->ub == <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1227e67513602591fb959e35c9de66e8">kMaxIntegerValue</a>) {</div>
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<div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->vars.clear();</div>
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<div class="line"><a id="l00382" name="l00382"></a><span class="lineno"> 382</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->coeffs.clear();</div>
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<div class="line"><a id="l00383" name="l00383"></a><span class="lineno"> 383</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00384" name="l00384"></a><span class="lineno"> 384</span> }</div>
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<div class="line"><a id="l00385" name="l00385"></a><span class="lineno"> 385</span> </div>
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<div class="line"><a id="l00386" name="l00386"></a><span class="lineno"> 386</span> <span class="comment">// TODO(user): Split constraint in two if it is boxed and there is possible</span></div>
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<div class="line"><a id="l00387" name="l00387"></a><span class="lineno"> 387</span> <span class="comment">// reduction?</span></div>
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<div class="line"><a id="l00388" name="l00388"></a><span class="lineno"> 388</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00389" name="l00389"></a><span class="lineno"> 389</span> <span class="comment">// TODO(user): Make sure there cannot be any overflow. They shouldn't, but</span></div>
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<div class="line"><a id="l00390" name="l00390"></a><span class="lineno"> 390</span> <span class="comment">// I am not sure all the generated cuts are safe regarding min/max sum</span></div>
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<div class="line"><a id="l00391" name="l00391"></a><span class="lineno"> 391</span> <span class="comment">// computation. We should check this.</span></div>
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<div class="line"><a id="l00392" name="l00392"></a><span class="lineno"> 392</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->ub != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1227e67513602591fb959e35c9de66e8">kMaxIntegerValue</a> && max_magnitude > max_sum - <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->ub) {</div>
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<div class="line"><a id="l00393" name="l00393"></a><span class="lineno"> 393</span> <span class="keywordflow">if</span> (<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#a355a62f25cfadeccfb164ab9fb867c81">kMinIntegerValue</a>) {</div>
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<div class="line"><a id="l00394" name="l00394"></a><span class="lineno"> 394</span> ++num_splitted_constraints_;</div>
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<div class="line"><a id="l00395" name="l00395"></a><span class="lineno"> 395</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00396" name="l00396"></a><span class="lineno"> 396</span> term_changed = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00397" name="l00397"></a><span class="lineno"> 397</span> ++num_coeff_strenghtening_;</div>
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<div class="line"><a id="l00398" name="l00398"></a><span class="lineno"> 398</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_terms = <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="l00399" name="l00399"></a><span class="lineno"> 399</span> <span class="keyword">const</span> IntegerValue target = max_sum - <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->ub;</div>
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<div class="line"><a id="l00400" name="l00400"></a><span class="lineno"> 400</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_terms; ++i) {</div>
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<div class="line"><a id="l00401" name="l00401"></a><span class="lineno"> 401</span> <span class="keyword">const</span> IntegerValue coeff = <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="l00402" name="l00402"></a><span class="lineno"> 402</span> <span class="keywordflow">if</span> (coeff > target) {</div>
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<div class="line"><a id="l00403" name="l00403"></a><span class="lineno"> 403</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[i];</div>
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<div class="line"><a id="l00404" name="l00404"></a><span class="lineno"> 404</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#a9ab880b5e67213a0607c5c3935da9f08">LevelZeroUpperBound</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00405" name="l00405"></a><span class="lineno"> 405</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->coeffs[i] = target;</div>
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<div class="line"><a id="l00406" name="l00406"></a><span class="lineno"> 406</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->ub -= (coeff - target) * ub;</div>
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<div class="line"><a id="l00407" name="l00407"></a><span class="lineno"> 407</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (coeff < -target) {</div>
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<div class="line"><a id="l00408" name="l00408"></a><span class="lineno"> 408</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[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> IntegerValue lb = integer_trail_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#aa68cc40c827bff2fb311040e2b848f9b">LevelZeroLowerBound</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00410" name="l00410"></a><span class="lineno"> 410</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->coeffs[i] = -target;</div>
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<div class="line"><a id="l00411" name="l00411"></a><span class="lineno"> 411</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->ub += (-target - coeff) * lb;</div>
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<div class="line"><a id="l00412" name="l00412"></a><span class="lineno"> 412</span> }</div>
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<div class="line"><a id="l00413" name="l00413"></a><span class="lineno"> 413</span> }</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"> 417</span> <span class="keywordflow">if</span> (<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#a355a62f25cfadeccfb164ab9fb867c81">kMinIntegerValue</a> && max_magnitude > <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->lb - min_sum) {</div>
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<div class="line"><a id="l00418" name="l00418"></a><span class="lineno"> 418</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->ub != <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a1227e67513602591fb959e35c9de66e8">kMaxIntegerValue</a>) {</div>
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<div class="line"><a id="l00419" name="l00419"></a><span class="lineno"> 419</span> ++num_splitted_constraints_;</div>
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<div class="line"><a id="l00420" name="l00420"></a><span class="lineno"> 420</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00421" name="l00421"></a><span class="lineno"> 421</span> term_changed = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00422" name="l00422"></a><span class="lineno"> 422</span> ++num_coeff_strenghtening_;</div>
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<div class="line"><a id="l00423" name="l00423"></a><span class="lineno"> 423</span> <span class="keyword">const</span> <span class="keywordtype">int</span> num_terms = <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="l00424" name="l00424"></a><span class="lineno"> 424</span> <span class="keyword">const</span> IntegerValue target = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->lb - min_sum;</div>
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<div class="line"><a id="l00425" name="l00425"></a><span class="lineno"> 425</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_terms; ++i) {</div>
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<div class="line"><a id="l00426" name="l00426"></a><span class="lineno"> 426</span> <span class="keyword">const</span> IntegerValue coeff = <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="l00427" name="l00427"></a><span class="lineno"> 427</span> <span class="keywordflow">if</span> (coeff > target) {</div>
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<div class="line"><a id="l00428" name="l00428"></a><span class="lineno"> 428</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[i];</div>
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<div class="line"><a id="l00429" name="l00429"></a><span class="lineno"> 429</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#aa68cc40c827bff2fb311040e2b848f9b">LevelZeroLowerBound</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00430" name="l00430"></a><span class="lineno"> 430</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->coeffs[i] = target;</div>
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<div class="line"><a id="l00431" name="l00431"></a><span class="lineno"> 431</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->lb -= (coeff - target) * lb;</div>
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<div class="line"><a id="l00432" name="l00432"></a><span class="lineno"> 432</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (coeff < -target) {</div>
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<div class="line"><a id="l00433" name="l00433"></a><span class="lineno"> 433</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[i];</div>
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<div class="line"><a id="l00434" name="l00434"></a><span class="lineno"> 434</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#a9ab880b5e67213a0607c5c3935da9f08">LevelZeroUpperBound</a>(<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00435" name="l00435"></a><span class="lineno"> 435</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->coeffs[i] = -target;</div>
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<div class="line"><a id="l00436" name="l00436"></a><span class="lineno"> 436</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->lb += (-target - coeff) * ub;</div>
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<div class="line"><a id="l00437" name="l00437"></a><span class="lineno"> 437</span> }</div>
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<div class="line"><a id="l00438" name="l00438"></a><span class="lineno"> 438</span> }</div>
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<div class="line"><a id="l00439" name="l00439"></a><span class="lineno"> 439</span> }</div>
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<div class="line"><a id="l00440" name="l00440"></a><span class="lineno"> 440</span> }</div>
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<div class="line"><a id="l00441" name="l00441"></a><span class="lineno"> 441</span> </div>
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<div class="line"><a id="l00442" name="l00442"></a><span class="lineno"> 442</span> <span class="keywordflow">return</span> term_changed;</div>
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<div class="line"><a id="l00443" name="l00443"></a><span class="lineno"> 443</span>}</div>
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<div class="line"><a id="l00444" name="l00444"></a><span class="lineno"> 444</span> </div>
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<div class="line"><a id="l00445" name="l00445"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a1951610defebe3a3b82d99006793486a"> 445</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a1951610defebe3a3b82d99006793486a">LinearConstraintManager::ChangeLp</a>(</div>
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<div class="line"><a id="l00446" name="l00446"></a><span class="lineno"> 446</span> <span class="keyword">const</span> <a class="code hl_class" href="classabsl_1_1_strong_vector.html">absl::StrongVector<IntegerVariable, double></a>& lp_solution,</div>
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<div class="line"><a id="l00447" name="l00447"></a><span class="lineno"> 447</span> <a class="code hl_struct" href="structoperations__research_1_1glop_1_1_basis_state.html">glop::BasisState</a>* solution_state) {</div>
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<div class="line"><a id="l00448" name="l00448"></a><span class="lineno"> 448</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(3) << <span class="stringliteral">"Enter ChangeLP, scan "</span> << constraint_infos_.size()</div>
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<div class="line"><a id="l00449" name="l00449"></a><span class="lineno"> 449</span> << <span class="stringliteral">" constraints"</span>;</div>
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<div class="line"><a id="l00450" name="l00450"></a><span class="lineno"> 450</span> <span class="keyword">const</span> <span class="keywordtype">double</span> saved_dtime = dtime_;</div>
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<div class="line"><a id="l00451" name="l00451"></a><span class="lineno"> 451</span> std::vector<ConstraintIndex> new_constraints;</div>
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<div class="line"><a id="l00452" name="l00452"></a><span class="lineno"> 452</span> std::vector<double> new_constraints_efficacies;</div>
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<div class="line"><a id="l00453" name="l00453"></a><span class="lineno"> 453</span> std::vector<double> new_constraints_orthogonalities;</div>
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<div class="line"><a id="l00454" name="l00454"></a><span class="lineno"> 454</span> </div>
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<div class="line"><a id="l00455" name="l00455"></a><span class="lineno"> 455</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> simplify_constraints =</div>
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<div class="line"><a id="l00456" name="l00456"></a><span class="lineno"> 456</span> integer_trail_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a4ce4030e2e60f84f0e28616614f9f320">num_level_zero_enqueues</a>() > last_simplification_timestamp_;</div>
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<div class="line"><a id="l00457" name="l00457"></a><span class="lineno"> 457</span> last_simplification_timestamp_ = integer_trail_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_integer_trail.html#a4ce4030e2e60f84f0e28616614f9f320">num_level_zero_enqueues</a>();</div>
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<div class="line"><a id="l00458" name="l00458"></a><span class="lineno"> 458</span> </div>
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<div class="line"><a id="l00459" name="l00459"></a><span class="lineno"> 459</span> <span class="comment">// We keep any constraints that is already present, and otherwise, we add the</span></div>
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<div class="line"><a id="l00460" name="l00460"></a><span class="lineno"> 460</span> <span class="comment">// ones that are currently not satisfied by at least "tolerance" to the set</span></div>
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<div class="line"><a id="l00461" name="l00461"></a><span class="lineno"> 461</span> <span class="comment">// of potential new constraints.</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> rescale_active_count = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00463" name="l00463"></a><span class="lineno"> 463</span> <span class="keyword">const</span> <span class="keywordtype">double</span> tolerance = 1e-6;</div>
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<div class="line"><a id="l00464" name="l00464"></a><span class="lineno"> 464</span> <span class="keywordflow">for</span> (ConstraintIndex i(0); i < constraint_infos_.size(); ++i) {</div>
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<div class="line"><a id="l00465" name="l00465"></a><span class="lineno"> 465</span> <span class="comment">// Inprocessing of the constraint.</span></div>
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<div class="line"><a id="l00466" name="l00466"></a><span class="lineno"> 466</span> <span class="keywordflow">if</span> (simplify_constraints &&</div>
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<div class="line"><a id="l00467" name="l00467"></a><span class="lineno"> 467</span> SimplifyConstraint(&constraint_infos_[i].constraint)) {</div>
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<div class="line"><a id="l00468" name="l00468"></a><span class="lineno"> 468</span> ++num_simplifications_;</div>
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<div class="line"><a id="l00469" name="l00469"></a><span class="lineno"> 469</span> </div>
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<div class="line"><a id="l00470" name="l00470"></a><span class="lineno"> 470</span> <span class="comment">// Note that the canonicalization shouldn't be needed since the order</span></div>
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<div class="line"><a id="l00471" name="l00471"></a><span class="lineno"> 471</span> <span class="comment">// of the variable is not changed by the simplification, and we only</span></div>
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<div class="line"><a id="l00472" name="l00472"></a><span class="lineno"> 472</span> <span class="comment">// reduce the coefficients at both end of the spectrum.</span></div>
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<div class="line"><a id="l00473" name="l00473"></a><span class="lineno"> 473</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ae3c495e2e05950c578b01976701f9b2a">DivideByGCD</a>(&constraint_infos_[i].constraint);</div>
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<div class="line"><a id="l00474" name="l00474"></a><span class="lineno"> 474</span> <a class="code hl_define" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(<a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a1afbe8d162a9cba17a520812ec6d3dd4">DebugCheckConstraint</a>(constraint_infos_[i].constraint));</div>
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<div class="line"><a id="l00475" name="l00475"></a><span class="lineno"> 475</span> </div>
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<div class="line"><a id="l00476" name="l00476"></a><span class="lineno"> 476</span> constraint_infos_[i].objective_parallelism_computed = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00477" name="l00477"></a><span class="lineno"> 477</span> constraint_infos_[i].l2_norm =</div>
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<div class="line"><a id="l00478" name="l00478"></a><span class="lineno"> 478</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a89bc8a9319a176bb809f209617fa10ca">ComputeL2Norm</a>(constraint_infos_[i].constraint);</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> (constraint_infos_[i].is_in_lp) current_lp_is_changed_ = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00481" name="l00481"></a><span class="lineno"> 481</span> equiv_constraints_.erase(constraint_infos_[i].<a class="code hl_variable" href="matrix__utils_8cc.html#a95d4078c018ac04247ee3785eab30e7b">hash</a>);</div>
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<div class="line"><a id="l00482" name="l00482"></a><span class="lineno"> 482</span> constraint_infos_[i].hash =</div>
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<div class="line"><a id="l00483" name="l00483"></a><span class="lineno"> 483</span> ComputeHashOfTerms(constraint_infos_[i].constraint);</div>
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<div class="line"><a id="l00484" name="l00484"></a><span class="lineno"> 484</span> </div>
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<div class="line"><a id="l00485" name="l00485"></a><span class="lineno"> 485</span> <span class="comment">// TODO(user): Because we simplified this constraint, it is possible that</span></div>
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<div class="line"><a id="l00486" name="l00486"></a><span class="lineno"> 486</span> <span class="comment">// it is now a duplicate of another one. Merge them.</span></div>
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<div class="line"><a id="l00487" name="l00487"></a><span class="lineno"> 487</span> equiv_constraints_[constraint_infos_[i].hash] = i;</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> <span class="keywordflow">if</span> (constraint_infos_[i].is_in_lp) <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00491" name="l00491"></a><span class="lineno"> 491</span> </div>
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<div class="line"><a id="l00492" name="l00492"></a><span class="lineno"> 492</span> <span class="comment">// ComputeActivity() often represent the bulk of the time spent in</span></div>
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<div class="line"><a id="l00493" name="l00493"></a><span class="lineno"> 493</span> <span class="comment">// ChangeLP().</span></div>
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<div class="line"><a id="l00494" name="l00494"></a><span class="lineno"> 494</span> dtime_ += 1.7e-9 *</div>
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<div class="line"><a id="l00495" name="l00495"></a><span class="lineno"> 495</span> <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(constraint_infos_[i].constraint.vars.size());</div>
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<div class="line"><a id="l00496" name="l00496"></a><span class="lineno"> 496</span> <span class="keyword">const</span> <span class="keywordtype">double</span> activity =</div>
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<div class="line"><a id="l00497" name="l00497"></a><span class="lineno"> 497</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aea18a909121c1c2ba4a818298611f0b2">ComputeActivity</a>(constraint_infos_[i].constraint, lp_solution);</div>
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<div class="line"><a id="l00498" name="l00498"></a><span class="lineno"> 498</span> <span class="keyword">const</span> <span class="keywordtype">double</span> lb_violation =</div>
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<div class="line"><a id="l00499" name="l00499"></a><span class="lineno"> 499</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aed77a1a7675c2f8568529a5a16247ec1">ToDouble</a>(constraint_infos_[i].constraint.lb) - activity;</div>
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<div class="line"><a id="l00500" name="l00500"></a><span class="lineno"> 500</span> <span class="keyword">const</span> <span class="keywordtype">double</span> ub_violation =</div>
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<div class="line"><a id="l00501" name="l00501"></a><span class="lineno"> 501</span> activity - <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aed77a1a7675c2f8568529a5a16247ec1">ToDouble</a>(constraint_infos_[i].constraint.ub);</div>
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<div class="line"><a id="l00502" name="l00502"></a><span class="lineno"> 502</span> <span class="keyword">const</span> <span class="keywordtype">double</span> violation = <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(lb_violation, ub_violation);</div>
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<div class="line"><a id="l00503" name="l00503"></a><span class="lineno"> 503</span> <span class="keywordflow">if</span> (violation >= tolerance) {</div>
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<div class="line"><a id="l00504" name="l00504"></a><span class="lineno"> 504</span> constraint_infos_[i].inactive_count = 0;</div>
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<div class="line"><a id="l00505" name="l00505"></a><span class="lineno"> 505</span> new_constraints.push_back(i);</div>
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<div class="line"><a id="l00506" name="l00506"></a><span class="lineno"> 506</span> new_constraints_efficacies.push_back(violation /</div>
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<div class="line"><a id="l00507" name="l00507"></a><span class="lineno"> 507</span> constraint_infos_[i].l2_norm);</div>
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<div class="line"><a id="l00508" name="l00508"></a><span class="lineno"> 508</span> new_constraints_orthogonalities.push_back(1.0);</div>
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<div class="line"><a id="l00509" name="l00509"></a><span class="lineno"> 509</span> </div>
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<div class="line"><a id="l00510" name="l00510"></a><span class="lineno"> 510</span> <span class="keywordflow">if</span> (objective_is_defined_ &&</div>
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<div class="line"><a id="l00511" name="l00511"></a><span class="lineno"> 511</span> !constraint_infos_[i].objective_parallelism_computed) {</div>
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<div class="line"><a id="l00512" name="l00512"></a><span class="lineno"> 512</span> ComputeObjectiveParallelism(i);</div>
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<div class="line"><a id="l00513" name="l00513"></a><span class="lineno"> 513</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!objective_is_defined_) {</div>
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<div class="line"><a id="l00514" name="l00514"></a><span class="lineno"> 514</span> constraint_infos_[i].objective_parallelism = 0.0;</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> constraint_infos_[i].current_score =</div>
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<div class="line"><a id="l00518" name="l00518"></a><span class="lineno"> 518</span> new_constraints_efficacies.back() +</div>
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<div class="line"><a id="l00519" name="l00519"></a><span class="lineno"> 519</span> constraint_infos_[i].objective_parallelism;</div>
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<div class="line"><a id="l00520" name="l00520"></a><span class="lineno"> 520</span> </div>
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<div class="line"><a id="l00521" name="l00521"></a><span class="lineno"> 521</span> <span class="keywordflow">if</span> (constraint_infos_[i].is_deletable) {</div>
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<div class="line"><a id="l00522" name="l00522"></a><span class="lineno"> 522</span> constraint_infos_[i].active_count += constraint_active_count_increase_;</div>
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<div class="line"><a id="l00523" name="l00523"></a><span class="lineno"> 523</span> <span class="keywordflow">if</span> (constraint_infos_[i].active_count ></div>
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<div class="line"><a id="l00524" name="l00524"></a><span class="lineno"> 524</span> sat_parameters_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a90a9f9da96d5f2e6fd110aca794e1531">cut_max_active_count_value</a>()) {</div>
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<div class="line"><a id="l00525" name="l00525"></a><span class="lineno"> 525</span> rescale_active_count = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00526" name="l00526"></a><span class="lineno"> 526</span> }</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> }</div>
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<div class="line"><a id="l00529" name="l00529"></a><span class="lineno"> 529</span> }</div>
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<div class="line"><a id="l00530" name="l00530"></a><span class="lineno"> 530</span> </div>
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<div class="line"><a id="l00531" name="l00531"></a><span class="lineno"> 531</span> <span class="comment">// Bump activities of active constraints in LP.</span></div>
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<div class="line"><a id="l00532" name="l00532"></a><span class="lineno"> 532</span> <span class="keywordflow">if</span> (solution_state != <span class="keyword">nullptr</span>) {</div>
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<div class="line"><a id="l00533" name="l00533"></a><span class="lineno"> 533</span> <span class="keyword">const</span> glop::RowIndex num_rows(lp_constraints_.size());</div>
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<div class="line"><a id="l00534" name="l00534"></a><span class="lineno"> 534</span> <span class="keyword">const</span> glop::ColIndex num_cols =</div>
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<div class="line"><a id="l00535" name="l00535"></a><span class="lineno"> 535</span> solution_state-><a class="code hl_variable" href="structoperations__research_1_1glop_1_1_basis_state.html#a6cc6941be01d3c765280e09be0246c3f">statuses</a>.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5">size</a>() - <a class="code hl_function" href="namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524">RowToColIndex</a>(num_rows);</div>
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<div class="line"><a id="l00536" name="l00536"></a><span class="lineno"> 536</span> </div>
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<div class="line"><a id="l00537" name="l00537"></a><span class="lineno"> 537</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < num_rows; ++i) {</div>
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<div class="line"><a id="l00538" name="l00538"></a><span class="lineno"> 538</span> <span class="keyword">const</span> ConstraintIndex constraint_index = lp_constraints_[i];</div>
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<div class="line"><a id="l00539" name="l00539"></a><span class="lineno"> 539</span> <span class="keyword">const</span> <a class="code hl_enumeration" href="namespaceoperations__research_1_1glop.html#aaddc7ccf1acc75842c2129ee4590d358">glop::VariableStatus</a> row_status =</div>
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<div class="line"><a id="l00540" name="l00540"></a><span class="lineno"> 540</span> solution_state-><a class="code hl_variable" href="structoperations__research_1_1glop_1_1_basis_state.html#a6cc6941be01d3c765280e09be0246c3f">statuses</a>[num_cols + glop::ColIndex(i)];</div>
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<div class="line"><a id="l00541" name="l00541"></a><span class="lineno"> 541</span> <span class="keywordflow">if</span> (row_status != <a class="code hl_enumvalue" href="namespaceoperations__research_1_1glop.html#aaddc7ccf1acc75842c2129ee4590d358ae4ac03f6c9f00665644e868dd1fb9f1e">glop::VariableStatus::BASIC</a> &&</div>
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<div class="line"><a id="l00542" name="l00542"></a><span class="lineno"> 542</span> constraint_infos_[constraint_index].is_deletable) {</div>
|
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<div class="line"><a id="l00543" name="l00543"></a><span class="lineno"> 543</span> constraint_infos_[constraint_index].active_count +=</div>
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<div class="line"><a id="l00544" name="l00544"></a><span class="lineno"> 544</span> constraint_active_count_increase_;</div>
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<div class="line"><a id="l00545" name="l00545"></a><span class="lineno"> 545</span> <span class="keywordflow">if</span> (constraint_infos_[constraint_index].active_count ></div>
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<div class="line"><a id="l00546" name="l00546"></a><span class="lineno"> 546</span> sat_parameters_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a90a9f9da96d5f2e6fd110aca794e1531">cut_max_active_count_value</a>()) {</div>
|
|
<div class="line"><a id="l00547" name="l00547"></a><span class="lineno"> 547</span> rescale_active_count = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l00548" name="l00548"></a><span class="lineno"> 548</span> }</div>
|
|
<div class="line"><a id="l00549" name="l00549"></a><span class="lineno"> 549</span> }</div>
|
|
<div class="line"><a id="l00550" name="l00550"></a><span class="lineno"> 550</span> }</div>
|
|
<div class="line"><a id="l00551" name="l00551"></a><span class="lineno"> 551</span> }</div>
|
|
<div class="line"><a id="l00552" name="l00552"></a><span class="lineno"> 552</span> </div>
|
|
<div class="line"><a id="l00553" name="l00553"></a><span class="lineno"> 553</span> <span class="keywordflow">if</span> (rescale_active_count) {</div>
|
|
<div class="line"><a id="l00554" name="l00554"></a><span class="lineno"> 554</span> <a class="code hl_define" href="base_2logging_8h.html#a7e03ec13560fa94a8fea569960d7efc6">CHECK_GT</a>(sat_parameters_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a90a9f9da96d5f2e6fd110aca794e1531">cut_max_active_count_value</a>(), 0.0);</div>
|
|
<div class="line"><a id="l00555" name="l00555"></a><span class="lineno"> 555</span> RescaleActiveCounts(1.0 / sat_parameters_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a90a9f9da96d5f2e6fd110aca794e1531">cut_max_active_count_value</a>());</div>
|
|
<div class="line"><a id="l00556" name="l00556"></a><span class="lineno"> 556</span> }</div>
|
|
<div class="line"><a id="l00557" name="l00557"></a><span class="lineno"> 557</span> </div>
|
|
<div class="line"><a id="l00558" name="l00558"></a><span class="lineno"> 558</span> <span class="comment">// Update the increment counter.</span></div>
|
|
<div class="line"><a id="l00559" name="l00559"></a><span class="lineno"> 559</span> constraint_active_count_increase_ *=</div>
|
|
<div class="line"><a id="l00560" name="l00560"></a><span class="lineno"> 560</span> 1.0 / sat_parameters_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#aa8e8f4eb07daa86658c61d91a007be8f">cut_active_count_decay</a>();</div>
|
|
<div class="line"><a id="l00561" name="l00561"></a><span class="lineno"> 561</span> </div>
|
|
<div class="line"><a id="l00562" name="l00562"></a><span class="lineno"> 562</span> <span class="comment">// Remove constraints from the current LP that have been inactive for a while.</span></div>
|
|
<div class="line"><a id="l00563" name="l00563"></a><span class="lineno"> 563</span> <span class="comment">// We do that after we computed new_constraints so we do not need to iterate</span></div>
|
|
<div class="line"><a id="l00564" name="l00564"></a><span class="lineno"> 564</span> <span class="comment">// over the just deleted constraints.</span></div>
|
|
<div class="line"><a id="l00565" name="l00565"></a><span class="lineno"> 565</span> <span class="keywordflow">if</span> (MaybeRemoveSomeInactiveConstraints(solution_state)) {</div>
|
|
<div class="line"><a id="l00566" name="l00566"></a><span class="lineno"> 566</span> current_lp_is_changed_ = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l00567" name="l00567"></a><span class="lineno"> 567</span> }</div>
|
|
<div class="line"><a id="l00568" name="l00568"></a><span class="lineno"> 568</span> </div>
|
|
<div class="line"><a id="l00569" name="l00569"></a><span class="lineno"> 569</span> <span class="comment">// Note that the algo below is in O(limit * new_constraint). In order to</span></div>
|
|
<div class="line"><a id="l00570" name="l00570"></a><span class="lineno"> 570</span> <span class="comment">// limit spending too much time on this, we first sort all the constraints</span></div>
|
|
<div class="line"><a id="l00571" name="l00571"></a><span class="lineno"> 571</span> <span class="comment">// with an imprecise score (no orthogonality), then limit the size of the</span></div>
|
|
<div class="line"><a id="l00572" name="l00572"></a><span class="lineno"> 572</span> <span class="comment">// vector of constraints to precisely score, then we do the actual scoring.</span></div>
|
|
<div class="line"><a id="l00573" name="l00573"></a><span class="lineno"> 573</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00574" name="l00574"></a><span class="lineno"> 574</span> <span class="comment">// On problem crossword_opt_grid-19.05_dict-80_sat with linearization_level=2,</span></div>
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|
<div class="line"><a id="l00575" name="l00575"></a><span class="lineno"> 575</span> <span class="comment">// new_constraint.size() > 1.5M.</span></div>
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|
<div class="line"><a id="l00576" name="l00576"></a><span class="lineno"> 576</span> <span class="comment">//</span></div>
|
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<div class="line"><a id="l00577" name="l00577"></a><span class="lineno"> 577</span> <span class="comment">// TODO(user): This blowup factor could be adaptative w.r.t. the constraint</span></div>
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|
<div class="line"><a id="l00578" name="l00578"></a><span class="lineno"> 578</span> <span class="comment">// limit.</span></div>
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|
<div class="line"><a id="l00579" name="l00579"></a><span class="lineno"> 579</span> <span class="keyword">const</span> <span class="keywordtype">int</span> kBlowupFactor = 4;</div>
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<div class="line"><a id="l00580" name="l00580"></a><span class="lineno"> 580</span> <span class="keywordtype">int</span> constraint_limit = <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::min</a>(sat_parameters_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a2661cbc6cd4cc67c7b3a061dd484600f">new_constraints_batch_size</a>(),</div>
|
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<div class="line"><a id="l00581" name="l00581"></a><span class="lineno"> 581</span> <span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(new_constraints.size()));</div>
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|
<div class="line"><a id="l00582" name="l00582"></a><span class="lineno"> 582</span> <span class="keywordflow">if</span> (lp_constraints_.empty()) {</div>
|
|
<div class="line"><a id="l00583" name="l00583"></a><span class="lineno"> 583</span> constraint_limit = <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::min</a>(1000, <span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(new_constraints.size()));</div>
|
|
<div class="line"><a id="l00584" name="l00584"></a><span class="lineno"> 584</span> }</div>
|
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<div class="line"><a id="l00585" name="l00585"></a><span class="lineno"> 585</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(3) << <span class="stringliteral">" - size = "</span> << new_constraints.size()</div>
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|
<div class="line"><a id="l00586" name="l00586"></a><span class="lineno"> 586</span> << <span class="stringliteral">", limit = "</span> << constraint_limit;</div>
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<div class="line"><a id="l00587" name="l00587"></a><span class="lineno"> 587</span> </div>
|
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<div class="line"><a id="l00588" name="l00588"></a><span class="lineno"> 588</span> std::stable_sort(new_constraints.begin(), new_constraints.end(),</div>
|
|
<div class="line"><a id="l00589" name="l00589"></a><span class="lineno"> 589</span> [&](ConstraintIndex <a class="code hl_variable" href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a>, ConstraintIndex <a class="code hl_variable" href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a>) {</div>
|
|
<div class="line"><a id="l00590" name="l00590"></a><span class="lineno"> 590</span> return constraint_infos_[a].current_score ></div>
|
|
<div class="line"><a id="l00591" name="l00591"></a><span class="lineno"> 591</span> constraint_infos_[b].current_score;</div>
|
|
<div class="line"><a id="l00592" name="l00592"></a><span class="lineno"> 592</span> });</div>
|
|
<div class="line"><a id="l00593" name="l00593"></a><span class="lineno"> 593</span> <span class="keywordflow">if</span> (new_constraints.size() > kBlowupFactor * constraint_limit) {</div>
|
|
<div class="line"><a id="l00594" name="l00594"></a><span class="lineno"> 594</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(3) << <span class="stringliteral">"Resize candidate constraints from "</span> << new_constraints.size()</div>
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<div class="line"><a id="l00595" name="l00595"></a><span class="lineno"> 595</span> << <span class="stringliteral">" down to "</span> << kBlowupFactor * constraint_limit;</div>
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|
<div class="line"><a id="l00596" name="l00596"></a><span class="lineno"> 596</span> new_constraints.resize(kBlowupFactor * constraint_limit);</div>
|
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<div class="line"><a id="l00597" name="l00597"></a><span class="lineno"> 597</span> }</div>
|
|
<div class="line"><a id="l00598" name="l00598"></a><span class="lineno"> 598</span> </div>
|
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<div class="line"><a id="l00599" name="l00599"></a><span class="lineno"> 599</span> <span class="keywordtype">int</span> num_added = 0;</div>
|
|
<div class="line"><a id="l00600" name="l00600"></a><span class="lineno"> 600</span> <span class="keywordtype">int</span> num_skipped_checks = 0;</div>
|
|
<div class="line"><a id="l00601" name="l00601"></a><span class="lineno"> 601</span> <span class="keyword">const</span> <span class="keywordtype">int</span> kCheckFrequency = 100;</div>
|
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<div class="line"><a id="l00602" name="l00602"></a><span class="lineno"> 602</span> ConstraintIndex last_added_candidate = kInvalidConstraintIndex;</div>
|
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<div class="line"><a id="l00603" name="l00603"></a><span class="lineno"> 603</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < constraint_limit; ++i) {</div>
|
|
<div class="line"><a id="l00604" name="l00604"></a><span class="lineno"> 604</span> <span class="comment">// Iterate through all new constraints and select the one with the best</span></div>
|
|
<div class="line"><a id="l00605" name="l00605"></a><span class="lineno"> 605</span> <span class="comment">// score.</span></div>
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|
<div class="line"><a id="l00606" name="l00606"></a><span class="lineno"> 606</span> <span class="keywordtype">double</span> best_score = 0.0;</div>
|
|
<div class="line"><a id="l00607" name="l00607"></a><span class="lineno"> 607</span> ConstraintIndex best_candidate = kInvalidConstraintIndex;</div>
|
|
<div class="line"><a id="l00608" name="l00608"></a><span class="lineno"> 608</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j < new_constraints.size(); ++j) {</div>
|
|
<div class="line"><a id="l00609" name="l00609"></a><span class="lineno"> 609</span> <span class="comment">// Checks the time limit, and returns if the lp has changed.</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> (++num_skipped_checks >= kCheckFrequency) {</div>
|
|
<div class="line"><a id="l00611" name="l00611"></a><span class="lineno"> 611</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> current_lp_is_changed_;</div>
|
|
<div class="line"><a id="l00612" name="l00612"></a><span class="lineno"> 612</span> num_skipped_checks = 0;</div>
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<div class="line"><a id="l00613" name="l00613"></a><span class="lineno"> 613</span> }</div>
|
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<div class="line"><a id="l00614" name="l00614"></a><span class="lineno"> 614</span> </div>
|
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<div class="line"><a id="l00615" name="l00615"></a><span class="lineno"> 615</span> <span class="keyword">const</span> ConstraintIndex new_constraint = new_constraints[j];</div>
|
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<div class="line"><a id="l00616" name="l00616"></a><span class="lineno"> 616</span> <span class="keywordflow">if</span> (constraint_infos_[new_constraint].is_in_lp) <span class="keywordflow">continue</span>;</div>
|
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<div class="line"><a id="l00617" name="l00617"></a><span class="lineno"> 617</span> </div>
|
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<div class="line"><a id="l00618" name="l00618"></a><span class="lineno"> 618</span> <span class="keywordflow">if</span> (last_added_candidate != kInvalidConstraintIndex) {</div>
|
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<div class="line"><a id="l00619" name="l00619"></a><span class="lineno"> 619</span> <span class="keyword">const</span> <span class="keywordtype">double</span> current_orthogonality =</div>
|
|
<div class="line"><a id="l00620" name="l00620"></a><span class="lineno"> 620</span> 1.0 - (std::abs(<a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a58fbc2d7f414974dcb10768e6ffdf68e">ScalarProduct</a>(</div>
|
|
<div class="line"><a id="l00621" name="l00621"></a><span class="lineno"> 621</span> constraint_infos_[last_added_candidate].constraint,</div>
|
|
<div class="line"><a id="l00622" name="l00622"></a><span class="lineno"> 622</span> constraint_infos_[new_constraint].constraint)) /</div>
|
|
<div class="line"><a id="l00623" name="l00623"></a><span class="lineno"> 623</span> (constraint_infos_[last_added_candidate].l2_norm *</div>
|
|
<div class="line"><a id="l00624" name="l00624"></a><span class="lineno"> 624</span> constraint_infos_[new_constraint].l2_norm));</div>
|
|
<div class="line"><a id="l00625" name="l00625"></a><span class="lineno"> 625</span> new_constraints_orthogonalities[j] =</div>
|
|
<div class="line"><a id="l00626" name="l00626"></a><span class="lineno"> 626</span> <a class="code hl_variable" href="alldiff__cst_8cc.html#ad10edae0a852d72fb76afb1c77735045">std::min</a>(new_constraints_orthogonalities[j], current_orthogonality);</div>
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<div class="line"><a id="l00627" name="l00627"></a><span class="lineno"> 627</span> }</div>
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<div class="line"><a id="l00628" name="l00628"></a><span class="lineno"> 628</span> </div>
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<div class="line"><a id="l00629" name="l00629"></a><span class="lineno"> 629</span> <span class="comment">// NOTE(user): It is safe to not add this constraint as the constraint</span></div>
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<div class="line"><a id="l00630" name="l00630"></a><span class="lineno"> 630</span> <span class="comment">// that is almost parallel to this constraint is present in the LP or is</span></div>
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<div class="line"><a id="l00631" name="l00631"></a><span class="lineno"> 631</span> <span class="comment">// inactive for a long time and is removed from the LP. In either case,</span></div>
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<div class="line"><a id="l00632" name="l00632"></a><span class="lineno"> 632</span> <span class="comment">// this constraint is not adding significant value and is only making the</span></div>
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<div class="line"><a id="l00633" name="l00633"></a><span class="lineno"> 633</span> <span class="comment">// LP larger.</span></div>
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<div class="line"><a id="l00634" name="l00634"></a><span class="lineno"> 634</span> <span class="keywordflow">if</span> (new_constraints_orthogonalities[j] <</div>
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<div class="line"><a id="l00635" name="l00635"></a><span class="lineno"> 635</span> sat_parameters_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#add63dd6e73c6013d27f122511639d9cd">min_orthogonality_for_lp_constraints</a>()) {</div>
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<div class="line"><a id="l00636" name="l00636"></a><span class="lineno"> 636</span> <span class="keywordflow">continue</span>;</div>
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<div class="line"><a id="l00637" name="l00637"></a><span class="lineno"> 637</span> }</div>
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<div class="line"><a id="l00638" name="l00638"></a><span class="lineno"> 638</span> </div>
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<div class="line"><a id="l00639" name="l00639"></a><span class="lineno"> 639</span> <span class="comment">// TODO(user): Experiment with different weights or different</span></div>
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<div class="line"><a id="l00640" name="l00640"></a><span class="lineno"> 640</span> <span class="comment">// functions for computing score.</span></div>
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<div class="line"><a id="l00641" name="l00641"></a><span class="lineno"> 641</span> <span class="keyword">const</span> <span class="keywordtype">double</span> score = new_constraints_orthogonalities[j] +</div>
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<div class="line"><a id="l00642" name="l00642"></a><span class="lineno"> 642</span> constraint_infos_[new_constraint].current_score;</div>
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<div class="line"><a id="l00643" name="l00643"></a><span class="lineno"> 643</span> <a class="code hl_define" href="base_2logging_8h.html#a7cc25402ecd7591b4c39934dd656b1f9">CHECK_GE</a>(score, 0.0);</div>
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|
<div class="line"><a id="l00644" name="l00644"></a><span class="lineno"> 644</span> <span class="keywordflow">if</span> (score > best_score || best_candidate == kInvalidConstraintIndex) {</div>
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|
<div class="line"><a id="l00645" name="l00645"></a><span class="lineno"> 645</span> best_score = score;</div>
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<div class="line"><a id="l00646" name="l00646"></a><span class="lineno"> 646</span> best_candidate = new_constraint;</div>
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<div class="line"><a id="l00647" name="l00647"></a><span class="lineno"> 647</span> }</div>
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<div class="line"><a id="l00648" name="l00648"></a><span class="lineno"> 648</span> }</div>
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|
<div class="line"><a id="l00649" name="l00649"></a><span class="lineno"> 649</span> </div>
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<div class="line"><a id="l00650" name="l00650"></a><span class="lineno"> 650</span> <span class="keywordflow">if</span> (best_candidate != kInvalidConstraintIndex) {</div>
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|
<div class="line"><a id="l00651" name="l00651"></a><span class="lineno"> 651</span> <span class="comment">// Add the best constraint in the LP.</span></div>
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|
<div class="line"><a id="l00652" name="l00652"></a><span class="lineno"> 652</span> constraint_infos_[best_candidate].is_in_lp = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l00653" name="l00653"></a><span class="lineno"> 653</span> <span class="comment">// Note that it is important for LP incremental solving that the old</span></div>
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|
<div class="line"><a id="l00654" name="l00654"></a><span class="lineno"> 654</span> <span class="comment">// constraints stays at the same position in this list (and thus in the</span></div>
|
|
<div class="line"><a id="l00655" name="l00655"></a><span class="lineno"> 655</span> <span class="comment">// returned GetLp()).</span></div>
|
|
<div class="line"><a id="l00656" name="l00656"></a><span class="lineno"> 656</span> ++num_added;</div>
|
|
<div class="line"><a id="l00657" name="l00657"></a><span class="lineno"> 657</span> current_lp_is_changed_ = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l00658" name="l00658"></a><span class="lineno"> 658</span> lp_constraints_.push_back(best_candidate);</div>
|
|
<div class="line"><a id="l00659" name="l00659"></a><span class="lineno"> 659</span> last_added_candidate = best_candidate;</div>
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|
<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> }</div>
|
|
<div class="line"><a id="l00662" name="l00662"></a><span class="lineno"> 662</span> </div>
|
|
<div class="line"><a id="l00663" name="l00663"></a><span class="lineno"> 663</span> <span class="keywordflow">if</span> (num_added > 0) {</div>
|
|
<div class="line"><a id="l00664" name="l00664"></a><span class="lineno"> 664</span> <span class="comment">// We update the solution sate to match the new LP size.</span></div>
|
|
<div class="line"><a id="l00665" name="l00665"></a><span class="lineno"> 665</span> <a class="code hl_define" href="base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927">VLOG</a>(2) << <span class="stringliteral">"Added "</span> << num_added << <span class="stringliteral">" constraints."</span>;</div>
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|
<div class="line"><a id="l00666" name="l00666"></a><span class="lineno"> 666</span> solution_state-><a class="code hl_variable" href="structoperations__research_1_1glop_1_1_basis_state.html#a6cc6941be01d3c765280e09be0246c3f">statuses</a>.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e">resize</a>(solution_state-><a class="code hl_variable" href="structoperations__research_1_1glop_1_1_basis_state.html#a6cc6941be01d3c765280e09be0246c3f">statuses</a>.<a class="code hl_function" href="classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5">size</a>() + num_added,</div>
|
|
<div class="line"><a id="l00667" name="l00667"></a><span class="lineno"> 667</span> <a class="code hl_enumvalue" href="namespaceoperations__research_1_1glop.html#aaddc7ccf1acc75842c2129ee4590d358ae4ac03f6c9f00665644e868dd1fb9f1e">glop::VariableStatus::BASIC</a>);</div>
|
|
<div class="line"><a id="l00668" name="l00668"></a><span class="lineno"> 668</span> }</div>
|
|
<div class="line"><a id="l00669" name="l00669"></a><span class="lineno"> 669</span> </div>
|
|
<div class="line"><a id="l00670" name="l00670"></a><span class="lineno"> 670</span> <span class="comment">// TODO(user): Instead of comparing num_deletable_constraints with cut</span></div>
|
|
<div class="line"><a id="l00671" name="l00671"></a><span class="lineno"> 671</span> <span class="comment">// limit, compare number of deletable constraints not in lp against the limit.</span></div>
|
|
<div class="line"><a id="l00672" name="l00672"></a><span class="lineno"> 672</span> <span class="keywordflow">if</span> (num_deletable_constraints_ > sat_parameters_.<a class="code hl_function" href="classoperations__research_1_1sat_1_1_sat_parameters.html#a51fcda0cf62d8da61a9029c1abd823ae">max_num_cuts</a>()) {</div>
|
|
<div class="line"><a id="l00673" name="l00673"></a><span class="lineno"> 673</span> PermanentlyRemoveSomeConstraints();</div>
|
|
<div class="line"><a id="l00674" name="l00674"></a><span class="lineno"> 674</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> time_limit_-><a class="code hl_function" href="classoperations__research_1_1_time_limit.html#af90cfd1fc238433fc303ee28c5914eb9">AdvanceDeterministicTime</a>(dtime_ - saved_dtime);</div>
|
|
<div class="line"><a id="l00677" name="l00677"></a><span class="lineno"> 677</span> </div>
|
|
<div class="line"><a id="l00678" name="l00678"></a><span class="lineno"> 678</span> <span class="comment">// The LP changed only if we added new constraints or if some constraints</span></div>
|
|
<div class="line"><a id="l00679" name="l00679"></a><span class="lineno"> 679</span> <span class="comment">// already inside changed (simplification or tighter bounds).</span></div>
|
|
<div class="line"><a id="l00680" name="l00680"></a><span class="lineno"> 680</span> <span class="keywordflow">if</span> (current_lp_is_changed_) {</div>
|
|
<div class="line"><a id="l00681" name="l00681"></a><span class="lineno"> 681</span> current_lp_is_changed_ = <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00682" name="l00682"></a><span class="lineno"> 682</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l00683" name="l00683"></a><span class="lineno"> 683</span> }</div>
|
|
<div class="line"><a id="l00684" name="l00684"></a><span class="lineno"> 684</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00685" name="l00685"></a><span class="lineno"> 685</span>}</div>
|
|
<div class="line"><a id="l00686" name="l00686"></a><span class="lineno"> 686</span> </div>
|
|
<div class="line"><a id="l00687" name="l00687"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a87cc96a3e72099107712a0386d89d851"> 687</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a87cc96a3e72099107712a0386d89d851">LinearConstraintManager::AddAllConstraintsToLp</a>() {</div>
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|
<div class="line"><a id="l00688" name="l00688"></a><span class="lineno"> 688</span> <span class="keywordflow">for</span> (ConstraintIndex i(0); i < constraint_infos_.size(); ++i) {</div>
|
|
<div class="line"><a id="l00689" name="l00689"></a><span class="lineno"> 689</span> <span class="keywordflow">if</span> (constraint_infos_[i].is_in_lp) <span class="keywordflow">continue</span>;</div>
|
|
<div class="line"><a id="l00690" name="l00690"></a><span class="lineno"> 690</span> constraint_infos_[i].is_in_lp = <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l00691" name="l00691"></a><span class="lineno"> 691</span> lp_constraints_.push_back(i);</div>
|
|
<div class="line"><a id="l00692" name="l00692"></a><span class="lineno"> 692</span> }</div>
|
|
<div class="line"><a id="l00693" name="l00693"></a><span class="lineno"> 693</span>}</div>
|
|
<div class="line"><a id="l00694" name="l00694"></a><span class="lineno"> 694</span> </div>
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|
<div class="line"><a id="l00695" name="l00695"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a1afbe8d162a9cba17a520812ec6d3dd4"> 695</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a1afbe8d162a9cba17a520812ec6d3dd4">LinearConstraintManager::DebugCheckConstraint</a>(</div>
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|
<div class="line"><a id="l00696" name="l00696"></a><span class="lineno"> 696</span> <span class="keyword">const</span> <a class="code hl_struct" href="structoperations__research_1_1sat_1_1_linear_constraint.html">LinearConstraint</a>& cut) {</div>
|
|
<div class="line"><a id="l00697" name="l00697"></a><span class="lineno"> 697</span> <span class="keywordflow">if</span> (model_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_model.html#a37eb53a23cb596ef5d2e3bbc0fab70dc">Get</a><<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_debug_solution.html">DebugSolution</a>>() == <span class="keyword">nullptr</span>) <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
|
<div class="line"><a id="l00698" name="l00698"></a><span class="lineno"> 698</span> <span class="keyword">const</span> <span class="keyword">auto</span>& debug_solution = *(model_-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_model.html#a37eb53a23cb596ef5d2e3bbc0fab70dc">Get</a><<a class="code hl_struct" href="structoperations__research_1_1sat_1_1_debug_solution.html">DebugSolution</a>>());</div>
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|
<div class="line"><a id="l00699" name="l00699"></a><span class="lineno"> 699</span> <span class="keywordflow">if</span> (debug_solution.empty()) <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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|
<div class="line"><a id="l00700" name="l00700"></a><span class="lineno"> 700</span> </div>
|
|
<div class="line"><a id="l00701" name="l00701"></a><span class="lineno"> 701</span> IntegerValue activity(0);</div>
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<div class="line"><a id="l00702" name="l00702"></a><span class="lineno"> 702</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < cut.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_linear_constraint.html#a73e4094f2d4e2adbe5e8d79a5b61fcd1">vars</a>.size(); ++i) {</div>
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|
<div class="line"><a id="l00703" name="l00703"></a><span class="lineno"> 703</span> <span class="keyword">const</span> IntegerVariable <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = cut.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_linear_constraint.html#a73e4094f2d4e2adbe5e8d79a5b61fcd1">vars</a>[i];</div>
|
|
<div class="line"><a id="l00704" name="l00704"></a><span class="lineno"> 704</span> <span class="keyword">const</span> IntegerValue coeff = cut.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_linear_constraint.html#a4053d5aed2a34995e0aeb2042878ca7a">coeffs</a>[i];</div>
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|
<div class="line"><a id="l00705" name="l00705"></a><span class="lineno"> 705</span> activity += coeff * debug_solution[<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>];</div>
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|
<div class="line"><a id="l00706" name="l00706"></a><span class="lineno"> 706</span> }</div>
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|
<div class="line"><a id="l00707" name="l00707"></a><span class="lineno"> 707</span> <span class="keywordflow">if</span> (activity > cut.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_linear_constraint.html#a6e2915dc7e5345d6959390b53f026c5f">ub</a> || activity < cut.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_linear_constraint.html#a0ee34e5c6fbf075def1a6c2f0c42d040">lb</a>) {</div>
|
|
<div class="line"><a id="l00708" name="l00708"></a><span class="lineno"> 708</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a>) << <span class="stringliteral">"activity "</span> << activity << <span class="stringliteral">" not in ["</span> << cut.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_linear_constraint.html#a0ee34e5c6fbf075def1a6c2f0c42d040">lb</a> << <span class="stringliteral">","</span></div>
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|
<div class="line"><a id="l00709" name="l00709"></a><span class="lineno"> 709</span> << cut.<a class="code hl_variable" href="structoperations__research_1_1sat_1_1_linear_constraint.html#a6e2915dc7e5345d6959390b53f026c5f">ub</a> << <span class="stringliteral">"]"</span>;</div>
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|
<div class="line"><a id="l00710" name="l00710"></a><span class="lineno"> 710</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00711" name="l00711"></a><span class="lineno"> 711</span> }</div>
|
|
<div class="line"><a id="l00712" name="l00712"></a><span class="lineno"> 712</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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|
<div class="line"><a id="l00713" name="l00713"></a><span class="lineno"> 713</span>}</div>
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|
<div class="line"><a id="l00714" name="l00714"></a><span class="lineno"> 714</span> </div>
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<div class="line"><a id="l00715" name="l00715"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_top_n_cuts.html#a713bdb803c52b7b7ac3c52ba9b869530"> 715</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_top_n_cuts.html#a713bdb803c52b7b7ac3c52ba9b869530">TopNCuts::AddCut</a>(</div>
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<div class="line"><a id="l00716" name="l00716"></a><span class="lineno"> 716</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>, <span class="keyword">const</span> std::string& <a class="code hl_variable" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>,</div>
|
|
<div class="line"><a id="l00717" name="l00717"></a><span class="lineno"> 717</span> <span class="keyword">const</span> <a class="code hl_class" href="classabsl_1_1_strong_vector.html">absl::StrongVector<IntegerVariable, double></a>& lp_solution) {</div>
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<div class="line"><a id="l00718" name="l00718"></a><span class="lineno"> 718</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>.vars.empty()) <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a id="l00719" name="l00719"></a><span class="lineno"> 719</span> <span class="keyword">const</span> <span class="keywordtype">double</span> activity = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#aea18a909121c1c2ba4a818298611f0b2">ComputeActivity</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>, lp_solution);</div>
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|
<div class="line"><a id="l00720" name="l00720"></a><span class="lineno"> 720</span> <span class="keyword">const</span> <span class="keywordtype">double</span> violation =</div>
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|
<div class="line"><a id="l00721" name="l00721"></a><span class="lineno"> 721</span> <a class="code hl_variable" href="alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f">std::max</a>(activity - <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), <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) - activity);</div>
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|
<div class="line"><a id="l00722" name="l00722"></a><span class="lineno"> 722</span> <span class="keyword">const</span> <span class="keywordtype">double</span> l2_norm = <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a89bc8a9319a176bb809f209617fa10ca">ComputeL2Norm</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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|
<div class="line"><a id="l00723" name="l00723"></a><span class="lineno"> 723</span> cuts_.Add({<a class="code hl_variable" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>, <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>}, violation / l2_norm);</div>
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|
<div class="line"><a id="l00724" name="l00724"></a><span class="lineno"> 724</span>}</div>
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|
<div class="line"><a id="l00725" name="l00725"></a><span class="lineno"> 725</span> </div>
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<div class="line"><a id="l00726" name="l00726"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_top_n_cuts.html#afb0f85e921e0f240d59d2a739e6b5712"> 726</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_top_n_cuts.html#afb0f85e921e0f240d59d2a739e6b5712">TopNCuts::TransferToManager</a>(</div>
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<div class="line"><a id="l00727" name="l00727"></a><span class="lineno"> 727</span> <span class="keyword">const</span> <a class="code hl_class" href="classabsl_1_1_strong_vector.html">absl::StrongVector<IntegerVariable, double></a>& lp_solution,</div>
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<div class="line"><a id="l00728" name="l00728"></a><span class="lineno"> 728</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html">LinearConstraintManager</a>* manager) {</div>
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<div class="line"><a id="l00729" name="l00729"></a><span class="lineno"> 729</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> CutCandidate& candidate : cuts_.UnorderedElements()) {</div>
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<div class="line"><a id="l00730" name="l00730"></a><span class="lineno"> 730</span> manager-><a class="code hl_function" href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a9456bb31790e4dae791914e3c065b460">AddCut</a>(candidate.cut, candidate.name, lp_solution);</div>
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<div class="line"><a id="l00731" name="l00731"></a><span class="lineno"> 731</span> }</div>
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<div class="line"><a id="l00732" name="l00732"></a><span class="lineno"> 732</span> cuts_.Clear();</div>
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<div class="line"><a id="l00733" name="l00733"></a><span class="lineno"> 733</span>}</div>
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<div class="line"><a id="l00734" name="l00734"></a><span class="lineno"> 734</span> </div>
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<div class="line"><a id="l00735" name="l00735"></a><span class="lineno"> 735</span>} <span class="comment">// namespace sat</span></div>
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<div class="line"><a id="l00736" name="l00736"></a><span class="lineno"> 736</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#l00491">base/logging.h:491</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#l00702">base/logging.h:702</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#l00703">base/logging.h:703</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_accad43a85d781d53381cd53a9894b6ae"><div class="ttname"><a href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a></div><div class="ttdeci">#define LOG(severity)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00416">base/logging.h:416</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#l00885">base/logging.h:885</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#l00979">base/logging.h:979</a></div></div>
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<div class="ttc" id="aclassabsl_1_1_strong_vector_html"><div class="ttname"><a href="classabsl_1_1_strong_vector.html">absl::StrongVector< IntegerVariable, double ></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#l00533">time_limit.h:533</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1_time_limit_html_af90cfd1fc238433fc303ee28c5914eb9"><div class="ttname"><a href="classoperations__research_1_1_time_limit.html#af90cfd1fc238433fc303ee28c5914eb9">operations_research::TimeLimit::AdvanceDeterministicTime</a></div><div class="ttdeci">void AdvanceDeterministicTime(double deterministic_duration)</div><div class="ttdoc">Advances the deterministic time.</div><div class="ttdef"><b>Definition:</b> <a href="time__limit_8h_source.html#l00226">time_limit.h:226</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1glop_1_1_strict_i_t_i_vector_html_a64b6b04f3a519d2c61d49daaa88bf06e"><div class="ttname"><a href="classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e">operations_research::glop::StrictITIVector::resize</a></div><div class="ttdeci">void resize(IntType size)</div><div class="ttdef"><b>Definition:</b> <a href="lp__types_8h_source.html#l00273">lp_types.h:273</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_1sat_1_1_integer_trail_html_a4ce4030e2e60f84f0e28616614f9f320"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_integer_trail.html#a4ce4030e2e60f84f0e28616614f9f320">operations_research::sat::IntegerTrail::num_level_zero_enqueues</a></div><div class="ttdeci">int64_t num_level_zero_enqueues() const</div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00837">integer.h:837</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#l01412">integer.h:1412</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#l01407">integer.h:1407</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_constraint_manager_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html">operations_research::sat::LinearConstraintManager</a></div><div class="ttdef"><b>Definition:</b> <a href="linear__constraint__manager_8h_source.html#l00043">linear_constraint_manager.h:43</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_constraint_manager_html_a1951610defebe3a3b82d99006793486a"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a1951610defebe3a3b82d99006793486a">operations_research::sat::LinearConstraintManager::ChangeLp</a></div><div class="ttdeci">bool ChangeLp(const absl::StrongVector< IntegerVariable, double > &lp_solution, glop::BasisState *solution_state)</div><div class="ttdef"><b>Definition:</b> <a href="linear__constraint__manager_8cc_source.html#l00445">linear_constraint_manager.cc:445</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_constraint_manager_html_a1afbe8d162a9cba17a520812ec6d3dd4"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a1afbe8d162a9cba17a520812ec6d3dd4">operations_research::sat::LinearConstraintManager::DebugCheckConstraint</a></div><div class="ttdeci">bool DebugCheckConstraint(const LinearConstraint &cut)</div><div class="ttdef"><b>Definition:</b> <a href="linear__constraint__manager_8cc_source.html#l00695">linear_constraint_manager.cc:695</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_constraint_manager_html_a36295bfe464bcdb6465fe796a43d02bf"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a36295bfe464bcdb6465fe796a43d02bf">operations_research::sat::LinearConstraintManager::SetObjectiveCoefficient</a></div><div class="ttdeci">void SetObjectiveCoefficient(IntegerVariable var, IntegerValue coeff)</div><div class="ttdef"><b>Definition:</b> <a href="linear__constraint__manager_8cc_source.html#l00305">linear_constraint_manager.cc:305</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_constraint_manager_html_a40e3f0f21a2c16b673c84f734ba6d095"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a40e3f0f21a2c16b673c84f734ba6d095">operations_research::sat::LinearConstraintManager::Add</a></div><div class="ttdeci">ConstraintIndex Add(LinearConstraint ct, bool *added=nullptr)</div><div class="ttdef"><b>Definition:</b> <a href="linear__constraint__manager_8cc_source.html#l00134">linear_constraint_manager.cc:134</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_constraint_manager_html_a8713b8b4baa0b0c2c54907a1fb63c88f"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a8713b8b4baa0b0c2c54907a1fb63c88f">operations_research::sat::LinearConstraintManager::Statistics</a></div><div class="ttdeci">std::string Statistics() const</div><div class="ttdef"><b>Definition:</b> <a href="linear__constraint__manager_8cc_source.html#l00046">linear_constraint_manager.cc:46</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_constraint_manager_html_a87cc96a3e72099107712a0386d89d851"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a87cc96a3e72099107712a0386d89d851">operations_research::sat::LinearConstraintManager::AddAllConstraintsToLp</a></div><div class="ttdeci">void AddAllConstraintsToLp()</div><div class="ttdef"><b>Definition:</b> <a href="linear__constraint__manager_8cc_source.html#l00687">linear_constraint_manager.cc:687</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_linear_constraint_manager_html_a9456bb31790e4dae791914e3c065b460"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_linear_constraint_manager.html#a9456bb31790e4dae791914e3c065b460">operations_research::sat::LinearConstraintManager::AddCut</a></div><div class="ttdeci">bool AddCut(LinearConstraint ct, std::string type_name, const absl::StrongVector< IntegerVariable, double > &lp_solution, std::string extra_info="")</div><div class="ttdef"><b>Definition:</b> <a href="linear__constraint__manager_8cc_source.html#l00210">linear_constraint_manager.cc:210</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_model_html_a37eb53a23cb596ef5d2e3bbc0fab70dc"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_model.html#a37eb53a23cb596ef5d2e3bbc0fab70dc">operations_research::sat::Model::Get</a></div><div class="ttdeci">T Get(std::function< T(const Model &)> f) const</div><div class="ttdoc">Similar to Add() but this is const.</div><div class="ttdef"><b>Definition:</b> <a href="sat_2model_8h_source.html#l00087">sat/model.h:87</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_parameters_html_a2661cbc6cd4cc67c7b3a061dd484600f"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html#a2661cbc6cd4cc67c7b3a061dd484600f">operations_research::sat::SatParameters::new_constraints_batch_size</a></div><div class="ttdeci">::PROTOBUF_NAMESPACE_ID::int32 new_constraints_batch_size() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l06763">sat_parameters.pb.h:6763</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_parameters_html_a2d1ab36b4d143fee5414201b5a32b7a7"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html#a2d1ab36b4d143fee5414201b5a32b7a7">operations_research::sat::SatParameters::max_consecutive_inactive_count</a></div><div class="ttdeci">::PROTOBUF_NAMESPACE_ID::int32 max_consecutive_inactive_count() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l06651">sat_parameters.pb.h:6651</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_parameters_html_a51fcda0cf62d8da61a9029c1abd823ae"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html#a51fcda0cf62d8da61a9029c1abd823ae">operations_research::sat::SatParameters::max_num_cuts</a></div><div class="ttdeci">::PROTOBUF_NAMESPACE_ID::int32 max_num_cuts() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l06287">sat_parameters.pb.h:6287</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_parameters_html_a90a9f9da96d5f2e6fd110aca794e1531"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html#a90a9f9da96d5f2e6fd110aca794e1531">operations_research::sat::SatParameters::cut_max_active_count_value</a></div><div class="ttdeci">double cut_max_active_count_value() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l06679">sat_parameters.pb.h:6679</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_parameters_html_aa0899a87b632919615f335bdf22f72ec"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html#aa0899a87b632919615f335bdf22f72ec">operations_research::sat::SatParameters::cut_cleanup_target</a></div><div class="ttdeci">::PROTOBUF_NAMESPACE_ID::int32 cut_cleanup_target() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l06735">sat_parameters.pb.h:6735</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_parameters_html_aa8e8f4eb07daa86658c61d91a007be8f"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html#aa8e8f4eb07daa86658c61d91a007be8f">operations_research::sat::SatParameters::cut_active_count_decay</a></div><div class="ttdeci">double cut_active_count_decay() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l06707">sat_parameters.pb.h:6707</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_sat_parameters_html_add63dd6e73c6013d27f122511639d9cd"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_sat_parameters.html#add63dd6e73c6013d27f122511639d9cd">operations_research::sat::SatParameters::min_orthogonality_for_lp_constraints</a></div><div class="ttdeci">double min_orthogonality_for_lp_constraints() const</div><div class="ttdef"><b>Definition:</b> <a href="sat__parameters_8pb_8h_source.html#l06595">sat_parameters.pb.h:6595</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_top_n_cuts_html_a713bdb803c52b7b7ac3c52ba9b869530"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_top_n_cuts.html#a713bdb803c52b7b7ac3c52ba9b869530">operations_research::sat::TopNCuts::AddCut</a></div><div class="ttdeci">void AddCut(LinearConstraint ct, const std::string &name, const absl::StrongVector< IntegerVariable, double > &lp_solution)</div><div class="ttdef"><b>Definition:</b> <a href="linear__constraint__manager_8cc_source.html#l00715">linear_constraint_manager.cc:715</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_top_n_cuts_html_afb0f85e921e0f240d59d2a739e6b5712"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_top_n_cuts.html#afb0f85e921e0f240d59d2a739e6b5712">operations_research::sat::TopNCuts::TransferToManager</a></div><div class="ttdeci">void TransferToManager(const absl::StrongVector< IntegerVariable, double > &lp_solution, LinearConstraintManager *manager)</div><div class="ttdef"><b>Definition:</b> <a href="linear__constraint__manager_8cc_source.html#l00726">linear_constraint_manager.cc:726</a></div></div>
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<div class="ttc" id="aconstraint__solver_2table_8cc_html_a9293e4d29cac928301645070dd307683"><div class="ttname"><a href="constraint__solver_2table_8cc.html#a9293e4d29cac928301645070dd307683">b</a></div><div class="ttdeci">int64_t b</div><div class="ttdef"><b>Definition:</b> <a href="constraint__solver_2table_8cc_source.html#l00047">constraint_solver/table.cc:47</a></div></div>
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<div class="ttc" id="aconstraint__solver_2table_8cc_html_acb18315d548212835cd8ed4287e6c0b6"><div class="ttname"><a href="constraint__solver_2table_8cc.html#acb18315d548212835cd8ed4287e6c0b6">a</a></div><div class="ttdeci">int64_t a</div><div class="ttdef"><b>Definition:</b> <a href="constraint__solver_2table_8cc_source.html#l00046">constraint_solver/table.cc:46</a></div></div>
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<div class="ttc" id="adefault__search_8cc_html_ac673bc430bdc3fdaa09f7becf98ef267"><div class="ttname"><a href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a></div><div class="ttdeci">const std::string name</div><div class="ttdef"><b>Definition:</b> <a href="default__search_8cc_source.html#l00813">default_search.cc:813</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="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="ainteger_8h_html"><div class="ttname"><a href="integer_8h.html">integer.h</a></div></div>
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<div class="ttc" id="alinear__constraint__manager_8h_html"><div class="ttname"><a href="linear__constraint__manager_8h.html">linear_constraint_manager.h</a></div></div>
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<div class="ttc" id="alog__severity_8h_html_ab4a2cbab234914b320b7fae11b6e8cb9"><div class="ttname"><a href="log__severity_8h.html#ab4a2cbab234914b320b7fae11b6e8cb9">INFO</a></div><div class="ttdeci">const int INFO</div><div class="ttdef"><b>Definition:</b> <a href="log__severity_8h_source.html#l00031">log_severity.h:31</a></div></div>
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<div class="ttc" id="amatrix__utils_8cc_html_a95d4078c018ac04247ee3785eab30e7b"><div class="ttname"><a href="matrix__utils_8cc.html#a95d4078c018ac04247ee3785eab30e7b">hash</a></div><div class="ttdeci">int64_t hash</div><div class="ttdef"><b>Definition:</b> <a href="matrix__utils_8cc_source.html#l00061">matrix_utils.cc:61</a></div></div>
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<div class="ttc" id="anamespacegtl_html_aae28e97bd1fa93cb0032642550da7455"><div class="ttname"><a href="namespacegtl.html#aae28e97bd1fa93cb0032642550da7455">gtl::ContainsKey</a></div><div class="ttdeci">bool ContainsKey(const Collection &collection, const Key &key)</div><div class="ttdef"><b>Definition:</b> <a href="map__util_8h_source.html#l00200">map_util.h:200</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_a8fbc9efd86a3cc862a9079d86ab8b524"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524">operations_research::glop::RowToColIndex</a></div><div class="ttdeci">ColIndex RowToColIndex(RowIndex row)</div><div class="ttdef"><b>Definition:</b> <a href="lp__types_8h_source.html#l00049">lp_types.h:49</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_aaddc7ccf1acc75842c2129ee4590d358"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#aaddc7ccf1acc75842c2129ee4590d358">operations_research::glop::VariableStatus</a></div><div class="ttdeci">VariableStatus</div><div class="ttdef"><b>Definition:</b> <a href="lp__types_8h_source.html#l00197">lp_types.h:197</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1glop_html_aaddc7ccf1acc75842c2129ee4590d358ae4ac03f6c9f00665644e868dd1fb9f1e"><div class="ttname"><a href="namespaceoperations__research_1_1glop.html#aaddc7ccf1acc75842c2129ee4590d358ae4ac03f6c9f00665644e868dd1fb9f1e">operations_research::glop::VariableStatus::BASIC</a></div><div class="ttdeci">@ BASIC</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a1227e67513602591fb959e35c9de66e8"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a1227e67513602591fb959e35c9de66e8">operations_research::sat::kMaxIntegerValue</a></div><div class="ttdeci">constexpr IntegerValue kMaxIntegerValue(std::numeric_limits< IntegerValue::ValueType >::max() - 1)</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#l00078">integer.h:78</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a355a62f25cfadeccfb164ab9fb867c81"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a355a62f25cfadeccfb164ab9fb867c81">operations_research::sat::kMinIntegerValue</a></div><div class="ttdeci">constexpr IntegerValue kMinIntegerValue(-kMaxIntegerValue)</div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a58fbc2d7f414974dcb10768e6ffdf68e"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a58fbc2d7f414974dcb10768e6ffdf68e">operations_research::sat::ScalarProduct</a></div><div class="ttdeci">double ScalarProduct(const LinearConstraint &constraint1, const LinearConstraint &constraint2)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2linear__constraint_8cc_source.html#l00190">sat/linear_constraint.cc:190</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a6b1886825a71bbbe156439e2e1dacbc2"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a6b1886825a71bbbe156439e2e1dacbc2">operations_research::sat::CanonicalizeConstraint</a></div><div class="ttdeci">void CanonicalizeConstraint(LinearConstraint *ct)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2linear__constraint_8cc_source.html#l00305">sat/linear_constraint.cc:305</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a7e57f3af8ac7a8b8030adb1019cf2b44"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a7e57f3af8ac7a8b8030adb1019cf2b44">operations_research::sat::NoDuplicateVariable</a></div><div class="ttdeci">bool NoDuplicateVariable(const LinearConstraint &ct)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2linear__constraint_8cc_source.html#l00326">sat/linear_constraint.cc:326</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a89bc8a9319a176bb809f209617fa10ca"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a89bc8a9319a176bb809f209617fa10ca">operations_research::sat::ComputeL2Norm</a></div><div class="ttdeci">double ComputeL2Norm(const LinearConstraint &constraint)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2linear__constraint_8cc_source.html#l00174">sat/linear_constraint.cc:174</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#l00029">integer.cc:29</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_acb294633c7688f918623b3b0e09aec43"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#acb294633c7688f918623b3b0e09aec43">operations_research::sat::ComputeInfinityNorm</a></div><div class="ttdeci">IntegerValue ComputeInfinityNorm(const LinearConstraint &constraint)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2linear__constraint_8cc_source.html#l00182">sat/linear_constraint.cc:182</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#l00138">integer.h:138</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_ae3c495e2e05950c578b01976701f9b2a"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#ae3c495e2e05950c578b01976701f9b2a">operations_research::sat::DivideByGCD</a></div><div class="ttdeci">void DivideByGCD(LinearConstraint *constraint)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2linear__constraint_8cc_source.html#l00229">sat/linear_constraint.cc:229</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_aea18a909121c1c2ba4a818298611f0b2"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#aea18a909121c1c2ba4a818298611f0b2">operations_research::sat::ComputeActivity</a></div><div class="ttdeci">double ComputeActivity(const LinearConstraint &constraint, const absl::StrongVector< IntegerVariable, double > &values)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2linear__constraint_8cc_source.html#l00162">sat/linear_constraint.cc:162</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#l00070">integer.h:70</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="anamespaceutil__hash_html_a17715af1c1bc575a706eb167371b81e9"><div class="ttname"><a href="namespaceutil__hash.html#a17715af1c1bc575a706eb167371b81e9">util_hash::Hash</a></div><div class="ttdeci">uint64_t Hash(uint64_t num, uint64_t c)</div><div class="ttdef"><b>Definition:</b> <a href="hash_8h_source.html#l00150">hash.h:150</a></div></div>
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<div class="ttc" id="asat_2linear__constraint_8h_html"><div class="ttname"><a href="sat_2linear__constraint_8h.html">linear_constraint.h</a></div></div>
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<div class="ttc" id="astrong__vector_8h_html"><div class="ttname"><a href="strong__vector_8h.html">strong_vector.h</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1glop_1_1_basis_state_html"><div class="ttname"><a href="structoperations__research_1_1glop_1_1_basis_state.html">operations_research::glop::BasisState</a></div><div class="ttdef"><b>Definition:</b> <a href="variables__info_8h_source.html#l00035">variables_info.h:35</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1glop_1_1_basis_state_html_a6cc6941be01d3c765280e09be0246c3f"><div class="ttname"><a href="structoperations__research_1_1glop_1_1_basis_state.html#a6cc6941be01d3c765280e09be0246c3f">operations_research::glop::BasisState::statuses</a></div><div class="ttdeci">VariableStatusRow statuses</div><div class="ttdef"><b>Definition:</b> <a href="variables__info_8h_source.html#l00043">variables_info.h:43</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_debug_solution_html"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_debug_solution.html">operations_research::sat::DebugSolution</a></div><div class="ttdef"><b>Definition:</b> <a href="integer_8h_source.html#l00283">integer.h:284</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="astructoperations__research_1_1sat_1_1_linear_constraint_html_a0ee34e5c6fbf075def1a6c2f0c42d040"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_linear_constraint.html#a0ee34e5c6fbf075def1a6c2f0c42d040">operations_research::sat::LinearConstraint::lb</a></div><div class="ttdeci">IntegerValue lb</div><div class="ttdef"><b>Definition:</b> <a href="sat_2linear__constraint_8h_source.html#l00034">sat/linear_constraint.h:34</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_linear_constraint_html_a4053d5aed2a34995e0aeb2042878ca7a"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_linear_constraint.html#a4053d5aed2a34995e0aeb2042878ca7a">operations_research::sat::LinearConstraint::coeffs</a></div><div class="ttdeci">std::vector< IntegerValue > coeffs</div><div class="ttdef"><b>Definition:</b> <a href="sat_2linear__constraint_8h_source.html#l00037">sat/linear_constraint.h:37</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_linear_constraint_html_a6e2915dc7e5345d6959390b53f026c5f"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_linear_constraint.html#a6e2915dc7e5345d6959390b53f026c5f">operations_research::sat::LinearConstraint::ub</a></div><div class="ttdeci">IntegerValue ub</div><div class="ttdef"><b>Definition:</b> <a href="sat_2linear__constraint_8h_source.html#l00035">sat/linear_constraint.h:35</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_linear_constraint_html_a73e4094f2d4e2adbe5e8d79a5b61fcd1"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_linear_constraint.html#a73e4094f2d4e2adbe5e8d79a5b61fcd1">operations_research::sat::LinearConstraint::vars</a></div><div class="ttdeci">std::vector< IntegerVariable > vars</div><div class="ttdef"><b>Definition:</b> <a href="sat_2linear__constraint_8h_source.html#l00036">sat/linear_constraint.h:36</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_linear_constraint_manager_1_1_constraint_info_html"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_linear_constraint_manager_1_1_constraint_info.html">operations_research::sat::LinearConstraintManager::ConstraintInfo</a></div><div class="ttdef"><b>Definition:</b> <a href="linear__constraint__manager_8h_source.html#l00045">linear_constraint_manager.h:45</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_linear_constraint_manager_1_1_constraint_info_html_a032d3e55dc38f64c8914c8a6f9d3ba66"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_linear_constraint_manager_1_1_constraint_info.html#a032d3e55dc38f64c8914c8a6f9d3ba66">operations_research::sat::LinearConstraintManager::ConstraintInfo::constraint</a></div><div class="ttdeci">LinearConstraint constraint</div><div class="ttdef"><b>Definition:</b> <a href="linear__constraint__manager_8h_source.html#l00046">linear_constraint_manager.h:46</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_linear_constraint_manager_1_1_constraint_info_html_a2a897122b37c5a906205687aecdb627b"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_linear_constraint_manager_1_1_constraint_info.html#a2a897122b37c5a906205687aecdb627b">operations_research::sat::LinearConstraintManager::ConstraintInfo::l2_norm</a></div><div class="ttdeci">double l2_norm</div><div class="ttdef"><b>Definition:</b> <a href="linear__constraint__manager_8h_source.html#l00047">linear_constraint_manager.h:47</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_linear_constraint_manager_1_1_constraint_info_html_a2b07c49e916f21a26aa731f4db68785a"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_linear_constraint_manager_1_1_constraint_info.html#a2b07c49e916f21a26aa731f4db68785a">operations_research::sat::LinearConstraintManager::ConstraintInfo::hash</a></div><div class="ttdeci">size_t hash</div><div class="ttdef"><b>Definition:</b> <a href="linear__constraint__manager_8h_source.html#l00052">linear_constraint_manager.h:52</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1sat_1_1_linear_constraint_manager_1_1_constraint_info_html_a64cbd77208a462a2d718ed0be41d4b6c"><div class="ttname"><a href="structoperations__research_1_1sat_1_1_linear_constraint_manager_1_1_constraint_info.html#a64cbd77208a462a2d718ed0be41d4b6c">operations_research::sat::LinearConstraintManager::ConstraintInfo::active_count</a></div><div class="ttdeci">double active_count</div><div class="ttdef"><b>Definition:</b> <a href="linear__constraint__manager_8h_source.html#l00058">linear_constraint_manager.h:58</a></div></div>
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