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<a href="presolve_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="presolve_8h.html">ortools/flatzinc/presolve.h</a>"</span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> </div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include <cstdint></span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include <map></span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include <set></span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include "absl/strings/match.h"</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/strings/str_format.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 "absl/strings/str_join.h"</span></div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include "absl/strings/string_view.h"</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="map__util_8h.html">ortools/base/map_util.h</a>"</span></div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include "<a class="code" href="flatzinc_2model_8h.html">ortools/flatzinc/model.h</a>"</span></div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include "<a class="code" href="cliques_8h.html">ortools/graph/cliques.h</a>"</span></div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include "<a class="code" href="saturated__arithmetic_8h.html">ortools/util/saturated_arithmetic.h</a>"</span></div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include "<a class="code" href="vector__map_8h.html">ortools/util/vector_map.h</a>"</span></div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"><a class="line" href="presolve_8cc.html#a85a30e24f0795defde283775b2bd0a71"> 30</a></span><a class="code hl_function" href="presolve_8cc.html#a85a30e24f0795defde283775b2bd0a71">ABSL_FLAG</a>(<span class="keywordtype">bool</span>, fz_floats_are_ints, <span class="keyword">false</span>,</div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> <span class="stringliteral">"Interpret floats as integers in all variables and constraints."</span>);</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="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="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="keyword">namespace </span>fz {</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="keyword">namespace </span>{</div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="keyword">enum</span> PresolveState { ALWAYS_FALSE, ALWAYS_TRUE, UNDECIDED };</div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> </div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="keyword">template</span> <<span class="keyword">class</span> T></div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceoperations__research.html#a3f4525e71a6b05d97c868f0832750a60">IsArrayBoolean</a>(<span class="keyword">const</span> std::vector<T>& values) {</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < values.size(); ++i) {</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keywordflow">if</span> (values[i] != 0 && values[i] != 1) {</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keywordflow">return</span> <span class="keyword">false</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> }</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span>}</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="keyword">template</span> <<span class="keyword">class</span> T></div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span><span class="keywordtype">bool</span> AtMostOne0OrAtMostOne1(<span class="keyword">const</span> std::vector<T>& values) {</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(<a class="code hl_function" href="namespaceoperations__research.html#a3f4525e71a6b05d97c868f0832750a60">IsArrayBoolean</a>(values));</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordtype">int</span> num_zero = 0;</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordtype">int</span> num_one = 0;</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="keywordflow">for</span> (T val : values) {</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keywordflow">if</span> (val) {</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> num_one++;</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> num_zero++;</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> }</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="keywordflow">if</span> (num_one > 1 && num_zero > 1) {</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordflow">return</span> <span class="keyword">false</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> }</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span>}</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> </div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span><span class="keyword">template</span> <<span class="keyword">class</span> T></div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span><span class="keywordtype">void</span> AppendIfNotInSet(T* <a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>, absl::flat_hash_set<T*>* s,</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> std::vector<T*>* vec) {</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="keywordflow">if</span> (s->insert(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>).second) {</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> vec->push_back(<a class="code hl_variable" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> }</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <a class="code hl_define" href="base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(s->size(), vec->size());</div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span>}</div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> </div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span>} <span class="comment">// namespace</span></div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> </div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span><span class="comment">// Note on documentation</span></div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span><span class="comment">//</span></div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span><span class="comment">// In order to document presolve rules, we will use the following naming</span></div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span><span class="comment">// convention:</span></div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span><span class="comment">// - x, x1, xi, y, y1, yi denote integer variables</span></div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span><span class="comment">// - b, b1, bi denote boolean variables</span></div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span><span class="comment">// - c, c1, ci denote integer constants</span></div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span><span class="comment">// - t, t1, ti denote boolean constants</span></div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span><span class="comment">// - => x after a constraint denotes the target variable of this constraint.</span></div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span><span class="comment">// Arguments are listed in order.</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="comment">// Propagates cast constraint.</span></div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span><span class="comment">// Rule 1:</span></div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span><span class="comment">// Input: bool2int(b, c) or bool2int(t, x)</span></div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span><span class="comment">// Output: int_eq(...)</span></div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span><span class="comment">//</span></div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span><span class="comment">// Rule 2:</span></div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span><span class="comment">// Input: bool2int(b, x)</span></div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span><span class="comment">// Action: Replace all instances of x by b.</span></div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span><span class="comment">// Output: inactive constraint</span></div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span><span class="keywordtype">void</span> Presolver::PresolveBool2Int(Constraint* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>) {</div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <a class="code hl_define" href="base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->type, <span class="stringliteral">"bool2int"</span>);</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].HasOneValue() || <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].HasOneValue()) {</div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="comment">// Rule 1.</span></div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> UpdateRuleStats(<span class="stringliteral">"bool2int: rename to int_eq"</span>);</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->type = <span class="stringliteral">"int_eq"</span>;</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="comment">// Rule 2.</span></div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> UpdateRuleStats(<span class="stringliteral">"bool2int: merge boolean and integer variables."</span>);</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> AddVariableSubstitution(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].Var(), <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].Var());</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->MarkAsInactive();</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> }</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span>}</div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> </div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span><span class="comment">// Minizinc flattens 2d element constraints (x = A[y][z]) into 1d element</span></div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span><span class="comment">// constraint with an affine mapping between y, z and the new index.</span></div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span><span class="comment">// This rule stores the mapping to reconstruct the 2d element constraint.</span></div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span><span class="comment">// This mapping can involve 1 or 2 variables depending if y or z in A[y][z]</span></div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span><span class="comment">// is a constant in the model).</span></div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span><span class="keywordtype">void</span> Presolver::PresolveStoreAffineMapping(Constraint* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>) {</div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <a class="code hl_define" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(2, <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].variables.size());</div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> Variable* <span class="keyword">const</span> var0 = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].variables[0];</div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> Variable* <span class="keyword">const</span> var1 = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].variables[1];</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="keyword">const</span> int64_t coeff0 = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].values[0];</div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> <span class="keyword">const</span> int64_t coeff1 = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].values[1];</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="keyword">const</span> int64_t rhs = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[2].Value();</div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keywordflow">if</span> (coeff0 == -1 && !affine_map_.contains(var0)) {</div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> affine_map_[var0] = AffineMapping(var1, coeff0, -rhs, <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> UpdateRuleStats(<span class="stringliteral">"int_lin_eq: store affine mapping"</span>);</div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (coeff1 == -1 && !affine_map_.contains(var1)) {</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> affine_map_[var1] = AffineMapping(var0, coeff0, -rhs, <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> UpdateRuleStats(<span class="stringliteral">"int_lin_eq: store affine mapping"</span>);</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> </div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span><span class="keywordtype">void</span> Presolver::PresolveStoreFlatteningMapping(Constraint* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>) {</div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <a class="code hl_define" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(3, <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].variables.size());</div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> Variable* <span class="keyword">const</span> var0 = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].variables[0];</div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> Variable* <span class="keyword">const</span> var1 = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].variables[1];</div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> Variable* <span class="keyword">const</span> var2 = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].variables[2];</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keyword">const</span> int64_t coeff0 = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].values[0];</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keyword">const</span> int64_t coeff1 = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].values[1];</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="keyword">const</span> int64_t coeff2 = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].values[2];</div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <span class="keyword">const</span> int64_t rhs = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[2].Value();</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="keywordflow">if</span> (coeff0 == -1 && coeff2 == 1 && !array2d_index_map_.contains(var0)) {</div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> array2d_index_map_[var0] =</div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> Array2DIndexMapping(var1, coeff1, var2, -rhs, <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> UpdateRuleStats(<span class="stringliteral">"int_lin_eq: store 2d flattening mapping"</span>);</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (coeff0 == -1 && coeff1 == 1 &&</div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> !array2d_index_map_.contains(var0)) {</div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> array2d_index_map_[var0] =</div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> Array2DIndexMapping(var2, coeff2, var1, -rhs, <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> UpdateRuleStats(<span class="stringliteral">"int_lin_eq: store 2d flattening mapping"</span>);</div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (coeff2 == -1 && coeff1 == 1 &&</div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> !array2d_index_map_.contains(var2)) {</div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> array2d_index_map_[var2] =</div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> Array2DIndexMapping(var0, coeff0, var1, -rhs, <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> UpdateRuleStats(<span class="stringliteral">"int_lin_eq: store 2d flattening mapping"</span>);</div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (coeff2 == -1 && coeff0 == 1 &&</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> !array2d_index_map_.contains(var2)) {</div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> array2d_index_map_[var2] =</div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> Array2DIndexMapping(var1, coeff1, var0, -rhs, <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> UpdateRuleStats(<span class="stringliteral">"int_lin_eq: store 2d flattening mapping"</span>);</div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> }</div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span>}</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><span class="keyword">namespace </span>{</div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span><span class="keywordtype">bool</span> IsIncreasingAndContiguous(<span class="keyword">const</span> std::vector<int64_t>& values) {</div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < values.size() - 1; ++i) {</div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="keywordflow">if</span> (values[i + 1] != values[i] + 1) {</div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> }</div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> }</div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span>}</div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> </div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span><span class="keywordtype">bool</span> AreOnesFollowedByMinusOne(<span class="keyword">const</span> std::vector<int64_t>& coeffs) {</div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(!coeffs.empty());</div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < coeffs.size() - 1; ++i) {</div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordflow">if</span> (coeffs[i] != 1) {</div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> }</div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> }</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <span class="keywordflow">return</span> coeffs.back() == -1;</div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span>}</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> </div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span><span class="keyword">template</span> <<span class="keyword">class</span> T></div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span><span class="keywordtype">bool</span> IsStrictPrefix(<span class="keyword">const</span> std::vector<T>& v1, <span class="keyword">const</span> std::vector<T>& v2) {</div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <span class="keywordflow">if</span> (v1.size() >= v2.size()) {</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> }</div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < v1.size(); ++i) {</div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> <span class="keywordflow">if</span> (v1[i] != v2[i]) {</div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <span class="keywordflow">return</span> <span class="keyword">false</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="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span>}</div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span>} <span class="comment">// namespace</span></div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> </div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span><span class="comment">// Rewrite array element: array_int_element:</span></div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span><span class="comment">//</span></div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span><span class="comment">// Rule 1:</span></div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span><span class="comment">// Input : array_int_element(x0, [c1, .., cn], y) with x0 = a * x + b</span></div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span><span class="comment">// Output: array_int_element(x, [c_a1, .., c_am], b) with a * i = b = ai</span></div>
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<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span><span class="comment">//</span></div>
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span><span class="comment">// Rule 2:</span></div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span><span class="comment">// Input : array_int_element(x, [c1, .., cn], y) with x = a * x1 + x2 + b</span></div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span><span class="comment">// Output: array_int_element([x1, x2], [c_a1, .., c_am], b, [a, b])</span></div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span><span class="comment">// to be interpreted by the extraction process.</span></div>
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span><span class="comment">//</span></div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span><span class="comment">// Rule 3:</span></div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span><span class="comment">// Input: array_int_element(x, [c1, .., cn], y)</span></div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span><span class="comment">// Output array_int_element(x, [c1, .., c{max(x)}], y)</span></div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span><span class="comment">//</span></div>
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span><span class="comment">// Rule 4:</span></div>
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span><span class="comment">// Input : array_int_element(x, [c1, .., cn], y) with x0 ci = c0 + i</span></div>
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<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span><span class="comment">// Output: int_lin_eq([-1, 1], [y, x], 1 - c) (e.g. y = x + c - 1)</span></div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span><span class="keywordtype">void</span> Presolver::PresolveSimplifyElement(Constraint* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>) {</div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].variables.size() != 1) <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> Variable* <span class="keyword">const</span> index_var = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].Var();</div>
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<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> </div>
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<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> <span class="comment">// Rule 1.</span></div>
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<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> <span class="keywordflow">if</span> (affine_map_.contains(index_var)) {</div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> <span class="keyword">const</span> AffineMapping& mapping = affine_map_[index_var];</div>
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<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> <span class="keyword">const</span> Domain& domain = mapping.variable->domain;</div>
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<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> <span class="keywordflow">if</span> (domain.is_interval && domain.values.empty()) {</div>
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<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> <span class="comment">// Invalid case. Ignore it.</span></div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> }</div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <span class="keywordflow">if</span> (domain.values[0] == 0 && mapping.coefficient == 1 &&</div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> mapping.offset > 1 && index_var->domain.is_interval) {</div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <span class="comment">// Simple translation</span></div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> <span class="keyword">const</span> <span class="keywordtype">int</span> offset = mapping.offset - 1;</div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <span class="keyword">const</span> <span class="keywordtype">int</span> size = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].values.size();</div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < size - offset; ++i) {</div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].values[i] = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].values[i + offset];</div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> }</div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].values.resize(size - offset);</div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> affine_map_[index_var].constraint->arguments[2].values[0] = -1;</div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> affine_map_[index_var].offset = 1;</div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> index_var->domain.values[0] -= offset;</div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> index_var->domain.values[1] -= offset;</div>
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<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> UpdateRuleStats(<span class="stringliteral">"array_int_element: simplify using affine mapping."</span>);</div>
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<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mapping.offset + mapping.coefficient > 0 &&</div>
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<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> domain.values[0] > 0) {</div>
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> <span class="keyword">const</span> std::vector<int64_t>& values = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].values;</div>
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<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> std::vector<int64_t> new_values;</div>
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<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <span class="keywordflow">for</span> (int64_t i = 1; i <= domain.values.back(); ++i) {</div>
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<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> <span class="keyword">const</span> int64_t <a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> = i * mapping.coefficient + mapping.offset - 1;</div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> < 0) {</div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> }</div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> > values.size()) {</div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> }</div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> new_values.push_back(values[<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>]);</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="comment">// Rewrite constraint.</span></div>
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<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> UpdateRuleStats(<span class="stringliteral">"array_int_element: simplify using affine mapping."</span>);</div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].variables[0] = mapping.variable;</div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].variables[0]->domain.IntersectWithInterval(</div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> 1, new_values.size());</div>
|
|
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> <span class="comment">// TODO(user): Encapsulate argument setters.</span></div>
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<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].values.swap(new_values);</div>
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<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].values.size() == 1) {</div>
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<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].type = <a class="code hl_enumvalue" href="structoperations__research_1_1fz_1_1_argument.html#a1d1cfd8ffb84e947f82999c682b666a7acd1ce0b084595a6072a57781dc7738a0">Argument::INT_VALUE</a>;</div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> }</div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> <span class="comment">// Reset propagate flag.</span></div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->presolve_propagation_done = <span class="keyword">false</span>;</div>
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|
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> <span class="comment">// Mark old index var and affine constraint as presolved out.</span></div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> mapping.constraint->MarkAsInactive();</div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> index_var->active = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> }</div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> }</div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> </div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> <span class="comment">// Rule 2.</span></div>
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> <span class="keywordflow">if</span> (array2d_index_map_.contains(index_var)) {</div>
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> UpdateRuleStats(<span class="stringliteral">"array_int_element: rewrite as a 2d element"</span>);</div>
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> <span class="keyword">const</span> Array2DIndexMapping& mapping = array2d_index_map_[index_var];</div>
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> <span class="comment">// Rewrite constraint.</span></div>
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<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0] =</div>
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> <a class="code hl_function" href="structoperations__research_1_1fz_1_1_argument.html#a539a9c8349b56ed3655cdca1144453ae">Argument::VarRefArray</a>({mapping.variable1, mapping.variable2});</div>
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<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> std::vector<int64_t> coefs;</div>
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<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> coefs.push_back(mapping.coefficient);</div>
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<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> coefs.push_back(1);</div>
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<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments.push_back(<a class="code hl_function" href="structoperations__research_1_1fz_1_1_argument.html#a2d7f92751913db3dbbe8de57a618d3cc">Argument::IntegerList</a>(coefs));</div>
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<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments.push_back(<a class="code hl_function" href="structoperations__research_1_1fz_1_1_argument.html#a6675e5508095375dfc786c7e71a341f8">Argument::IntegerValue</a>(mapping.offset));</div>
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<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> index_var->active = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> mapping.constraint->MarkAsInactive();</div>
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<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> <span class="keywordflow">return</span>;</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> </div>
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<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> <span class="comment">// Rule 3.</span></div>
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<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> <span class="keywordflow">if</span> (index_var->domain.Max() < <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].values.size()) {</div>
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<div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span> <span class="comment">// Reduce array of values.</span></div>
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<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].values.resize(index_var->domain.Max());</div>
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<div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->presolve_propagation_done = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span> UpdateRuleStats(<span class="stringliteral">"array_int_element: reduce array"</span>);</div>
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<div class="line"><a id="l00298" name="l00298"></a><span class="lineno"> 298</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span> }</div>
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<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> </div>
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<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span> <span class="comment">// Rule 4.</span></div>
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<div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span> <span class="keywordflow">if</span> (IsIncreasingAndContiguous(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].values) &&</div>
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<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[2].type == <a class="code hl_enumvalue" href="structoperations__research_1_1fz_1_1_argument.html#a1d1cfd8ffb84e947f82999c682b666a7a1617d4efaac07978f3cf0d396bb4831c">Argument::VAR_REF</a>) {</div>
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<div class="line"><a id="l00304" name="l00304"></a><span class="lineno"> 304</span> <span class="keyword">const</span> int64_t <a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a> = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].values.front();</div>
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<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> Variable* <span class="keyword">const</span> <a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].Var();</div>
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<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> Variable* <span class="keyword">const</span> target = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[2].Var();</div>
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<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> UpdateRuleStats(<span class="stringliteral">"array_int_element: rewrite as a linear constraint"</span>);</div>
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<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</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_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a> == 1) {</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="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->type = <span class="stringliteral">"int_eq"</span>;</div>
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<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->RemoveArg(1);</div>
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<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> <span class="comment">// Rewrite constraint into a int_lin_eq</span></div>
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<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->type = <span class="stringliteral">"int_lin_eq"</span>;</div>
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<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0] = <a class="code hl_function" href="structoperations__research_1_1fz_1_1_argument.html#a2d7f92751913db3dbbe8de57a618d3cc">Argument::IntegerList</a>({-1, 1});</div>
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<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1] = <a class="code hl_function" href="structoperations__research_1_1fz_1_1_argument.html#a539a9c8349b56ed3655cdca1144453ae">Argument::VarRefArray</a>({target, <a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>});</div>
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<div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[2] = <a class="code hl_function" href="structoperations__research_1_1fz_1_1_argument.html#a6675e5508095375dfc786c7e71a341f8">Argument::IntegerValue</a>(1 - <a class="code hl_variable" href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a>);</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>}</div>
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<div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> </div>
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<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span><span class="comment">// Simplifies array_var_int_element</span></div>
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<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span><span class="comment">//</span></div>
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<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span><span class="comment">// Input : array_var_int_element(x0, [x1, .., xn], y) with x0 = a * x + b</span></div>
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<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span><span class="comment">// Output: array_var_int_element(x, [x_a1, .., x_an], b) with a * i = b = ai</span></div>
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<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span><span class="keywordtype">void</span> Presolver::PresolveSimplifyExprElement(Constraint* <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>) {</div>
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<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].variables.size() != 1) <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> </div>
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<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> Variable* <span class="keyword">const</span> index_var = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].Var();</div>
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<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> <span class="keywordflow">if</span> (affine_map_.contains(index_var)) {</div>
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<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> <span class="keyword">const</span> AffineMapping& mapping = affine_map_[index_var];</div>
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<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> <span class="keyword">const</span> Domain& domain = mapping.variable->domain;</div>
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<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> <span class="keywordflow">if</span> ((domain.is_interval && domain.values.empty()) ||</div>
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<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> domain.values[0] != 1 || mapping.offset + mapping.coefficient <= 0) {</div>
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<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> <span class="comment">// Invalid case. Ignore it.</span></div>
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<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> }</div>
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<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> <span class="keyword">const</span> std::vector<Variable*>& vars = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].variables;</div>
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<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> std::vector<Variable*> new_vars;</div>
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<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> <span class="keywordflow">for</span> (int64_t i = domain.values.front(); i <= domain.values.back(); ++i) {</div>
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<div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span> <span class="keyword">const</span> int64_t <a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> = i * mapping.coefficient + mapping.offset - 1;</div>
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<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> < 0) {</div>
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<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> }</div>
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<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> >= vars.size()) {</div>
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<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> <span class="keywordflow">break</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> new_vars.push_back(vars[<a class="code hl_variable" href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>]);</div>
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<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span> }</div>
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<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> <span class="comment">// Rewrite constraint.</span></div>
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<div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span> UpdateRuleStats(<span class="stringliteral">"array_var_int_element: simplify using affine mapping."</span>);</div>
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<div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].variables[0] = mapping.variable;</div>
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<div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> <span class="comment">// TODO(user): Encapsulate argument setters.</span></div>
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<div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].variables.swap(new_vars);</div>
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<div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span> <span class="comment">// Mark old index var and affine constraint as presolved out.</span></div>
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<div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span> mapping.constraint->MarkAsInactive();</div>
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<div class="line"><a id="l00357" name="l00357"></a><span class="lineno"> 357</span> index_var->active = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (index_var->domain.is_interval &&</div>
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<div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> index_var->domain.values.size() == 2 &&</div>
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<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> index_var->domain.Max() < <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].variables.size()) {</div>
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<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span> <span class="comment">// Reduce array of variables.</span></div>
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<div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].variables.resize(index_var->domain.Max());</div>
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<div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span> UpdateRuleStats(<span class="stringliteral">"array_var_int_element: reduce array"</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>}</div>
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<div class="line"><a id="l00366" name="l00366"></a><span class="lineno"> 366</span> </div>
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<div class="line"><a id="l00367" name="l00367"></a><span class="lineno"><a class="line" href="classoperations__research_1_1fz_1_1_presolver.html#a960560379eec069d2062a118b0b9868d"> 367</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1fz_1_1_presolver.html#a960560379eec069d2062a118b0b9868d">Presolver::Run</a>(<a class="code hl_class" href="classoperations__research_1_1fz_1_1_model.html">Model</a>* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00368" name="l00368"></a><span class="lineno"> 368</span> <span class="comment">// Should rewrite float constraints.</span></div>
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<div class="line"><a id="l00369" name="l00369"></a><span class="lineno"> 369</span> <span class="keywordflow">if</span> (absl::GetFlag(FLAGS_fz_floats_are_ints)) {</div>
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<div class="line"><a id="l00370" name="l00370"></a><span class="lineno"> 370</span> <span class="comment">// Treat float variables as int variables, convert constraints to int.</span></div>
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<div class="line"><a id="l00371" name="l00371"></a><span class="lineno"> 371</span> <span class="keywordflow">for</span> (<a class="code hl_struct" href="structoperations__research_1_1fz_1_1_constraint.html">Constraint</a>* <span class="keyword">const</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> : <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->constraints()) {</div>
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<div class="line"><a id="l00372" name="l00372"></a><span class="lineno"> 372</span> <span class="keyword">const</span> std::string& <span class="keywordtype">id</span> = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->type;</div>
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<div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span> <span class="keywordflow">if</span> (<span class="keywordtype">id</span> == <span class="stringliteral">"int2float"</span>) {</div>
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<div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->type = <span class="stringliteral">"int_eq"</span>;</div>
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<div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<span class="keywordtype">id</span> == <span class="stringliteral">"float_lin_le"</span>) {</div>
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<div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->type = <span class="stringliteral">"int_lin_le"</span>;</div>
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<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<span class="keywordtype">id</span> == <span class="stringliteral">"float_lin_eq"</span>) {</div>
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<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->type = <span class="stringliteral">"int_lin_eq"</span>;</div>
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<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span> }</div>
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<div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> }</div>
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<div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span> }</div>
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<div class="line"><a id="l00382" name="l00382"></a><span class="lineno"> 382</span> </div>
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<div class="line"><a id="l00383" name="l00383"></a><span class="lineno"> 383</span> <span class="comment">// Regroup increasing sequence of int_lin_eq([1,..,1,-1], [x1, ..., xn, yn])</span></div>
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<div class="line"><a id="l00384" name="l00384"></a><span class="lineno"> 384</span> <span class="comment">// into sequence of int_plus(x1, x2, y2), int_plus(y2, x3, y3)...</span></div>
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<div class="line"><a id="l00385" name="l00385"></a><span class="lineno"> 385</span> std::vector<Variable*> current_variables;</div>
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<div class="line"><a id="l00386" name="l00386"></a><span class="lineno"> 386</span> <a class="code hl_struct" href="structoperations__research_1_1fz_1_1_variable.html">Variable</a>* target_variable = <span class="keyword">nullptr</span>;</div>
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<div class="line"><a id="l00387" name="l00387"></a><span class="lineno"> 387</span> <a class="code hl_struct" href="structoperations__research_1_1fz_1_1_constraint.html">Constraint</a>* first_constraint = <span class="keyword">nullptr</span>;</div>
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<div class="line"><a id="l00388" name="l00388"></a><span class="lineno"> 388</span> <span class="keywordflow">for</span> (<a class="code hl_struct" href="structoperations__research_1_1fz_1_1_constraint.html">Constraint</a>* <span class="keyword">const</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> : <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->constraints()) {</div>
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<div class="line"><a id="l00389" name="l00389"></a><span class="lineno"> 389</span> <span class="keywordflow">if</span> (target_variable == <span class="keyword">nullptr</span>) {</div>
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<div class="line"><a id="l00390" name="l00390"></a><span class="lineno"> 390</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->type == <span class="stringliteral">"int_lin_eq"</span> && <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].values.size() == 3 &&</div>
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<div class="line"><a id="l00391" name="l00391"></a><span class="lineno"> 391</span> AreOnesFollowedByMinusOne(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].values) &&</div>
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<div class="line"><a id="l00392" name="l00392"></a><span class="lineno"> 392</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].values.empty() && <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[2].Value() == 0) {</div>
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<div class="line"><a id="l00393" name="l00393"></a><span class="lineno"> 393</span> current_variables = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].variables;</div>
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<div class="line"><a id="l00394" name="l00394"></a><span class="lineno"> 394</span> target_variable = current_variables.back();</div>
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<div class="line"><a id="l00395" name="l00395"></a><span class="lineno"> 395</span> current_variables.pop_back();</div>
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<div class="line"><a id="l00396" name="l00396"></a><span class="lineno"> 396</span> first_constraint = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>;</div>
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<div class="line"><a id="l00397" name="l00397"></a><span class="lineno"> 397</span> }</div>
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<div class="line"><a id="l00398" name="l00398"></a><span class="lineno"> 398</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00399" name="l00399"></a><span class="lineno"> 399</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->type == <span class="stringliteral">"int_lin_eq"</span> &&</div>
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<div class="line"><a id="l00400" name="l00400"></a><span class="lineno"> 400</span> AreOnesFollowedByMinusOne(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].values) &&</div>
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<div class="line"><a id="l00401" name="l00401"></a><span class="lineno"> 401</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[0].values.size() == current_variables.size() + 2 &&</div>
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<div class="line"><a id="l00402" name="l00402"></a><span class="lineno"> 402</span> IsStrictPrefix(current_variables, <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].variables)) {</div>
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<div class="line"><a id="l00403" name="l00403"></a><span class="lineno"> 403</span> current_variables = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].variables;</div>
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<div class="line"><a id="l00404" name="l00404"></a><span class="lineno"> 404</span> <span class="comment">// Rewrite ct into int_plus.</span></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>->type = <span class="stringliteral">"int_plus"</span>;</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>->arguments.clear();</div>
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<div class="line"><a id="l00407" name="l00407"></a><span class="lineno"> 407</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments.push_back(<a class="code hl_function" href="structoperations__research_1_1fz_1_1_argument.html#a17ec4fe4babfccf5331e8ba0a0ff87ba">Argument::VarRef</a>(target_variable));</div>
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<div class="line"><a id="l00408" name="l00408"></a><span class="lineno"> 408</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments.push_back(</div>
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<div class="line"><a id="l00409" name="l00409"></a><span class="lineno"> 409</span> <a class="code hl_function" href="structoperations__research_1_1fz_1_1_argument.html#a17ec4fe4babfccf5331e8ba0a0ff87ba">Argument::VarRef</a>(current_variables[current_variables.size() - 2]));</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>->arguments.push_back(<a class="code hl_function" href="structoperations__research_1_1fz_1_1_argument.html#a17ec4fe4babfccf5331e8ba0a0ff87ba">Argument::VarRef</a>(current_variables.back()));</div>
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<div class="line"><a id="l00411" name="l00411"></a><span class="lineno"> 411</span> target_variable = current_variables.back();</div>
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<div class="line"><a id="l00412" name="l00412"></a><span class="lineno"> 412</span> current_variables.pop_back();</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> <span class="comment">// We clean the first constraint too.</span></div>
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<div class="line"><a id="l00415" name="l00415"></a><span class="lineno"> 415</span> <span class="keywordflow">if</span> (first_constraint != <span class="keyword">nullptr</span>) {</div>
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<div class="line"><a id="l00416" name="l00416"></a><span class="lineno"> 416</span> first_constraint = <span class="keyword">nullptr</span>;</div>
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<div class="line"><a id="l00417" name="l00417"></a><span class="lineno"> 417</span> }</div>
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<div class="line"><a id="l00418" name="l00418"></a><span class="lineno"> 418</span> } <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00419" name="l00419"></a><span class="lineno"> 419</span> current_variables.clear();</div>
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<div class="line"><a id="l00420" name="l00420"></a><span class="lineno"> 420</span> target_variable = <span class="keyword">nullptr</span>;</div>
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<div class="line"><a id="l00421" name="l00421"></a><span class="lineno"> 421</span> }</div>
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<div class="line"><a id="l00422" name="l00422"></a><span class="lineno"> 422</span> }</div>
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<div class="line"><a id="l00423" name="l00423"></a><span class="lineno"> 423</span> }</div>
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<div class="line"><a id="l00424" name="l00424"></a><span class="lineno"> 424</span> </div>
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<div class="line"><a id="l00425" name="l00425"></a><span class="lineno"> 425</span> <span class="comment">// First pass.</span></div>
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<div class="line"><a id="l00426" name="l00426"></a><span class="lineno"> 426</span> <span class="keywordflow">for</span> (<a class="code hl_struct" href="structoperations__research_1_1fz_1_1_constraint.html">Constraint</a>* <span class="keyword">const</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> : <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->constraints()) {</div>
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<div class="line"><a id="l00427" name="l00427"></a><span class="lineno"> 427</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->active && <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->type == <span class="stringliteral">"bool2int"</span>) {</div>
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<div class="line"><a id="l00428" name="l00428"></a><span class="lineno"> 428</span> PresolveBool2Int(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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<div class="line"><a id="l00429" name="l00429"></a><span class="lineno"> 429</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->active && <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->type == <span class="stringliteral">"int_lin_eq"</span> &&</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>->arguments[1].variables.size() == 2 &&</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>->strong_propagation) {</div>
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<div class="line"><a id="l00432" name="l00432"></a><span class="lineno"> 432</span> PresolveStoreAffineMapping(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
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|
<div class="line"><a id="l00433" name="l00433"></a><span class="lineno"> 433</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->active && <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->type == <span class="stringliteral">"int_lin_eq"</span> &&</div>
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<div class="line"><a id="l00434" name="l00434"></a><span class="lineno"> 434</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[1].variables.size() == 3 &&</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>->strong_propagation) {</div>
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<div class="line"><a id="l00436" name="l00436"></a><span class="lineno"> 436</span> PresolveStoreFlatteningMapping(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</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> <span class="keywordflow">if</span> (!var_representative_map_.empty()) {</div>
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|
<div class="line"><a id="l00440" name="l00440"></a><span class="lineno"> 440</span> <span class="comment">// Some new substitutions were introduced. Let's process them.</span></div>
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|
<div class="line"><a id="l00441" name="l00441"></a><span class="lineno"> 441</span> SubstituteEverywhere(<a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
|
|
<div class="line"><a id="l00442" name="l00442"></a><span class="lineno"> 442</span> var_representative_map_.clear();</div>
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|
<div class="line"><a id="l00443" name="l00443"></a><span class="lineno"> 443</span> var_representative_vector_.clear();</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"> 445</span> </div>
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<div class="line"><a id="l00446" name="l00446"></a><span class="lineno"> 446</span> <span class="comment">// Second pass.</span></div>
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|
<div class="line"><a id="l00447" name="l00447"></a><span class="lineno"> 447</span> <span class="keywordflow">for</span> (<a class="code hl_struct" href="structoperations__research_1_1fz_1_1_constraint.html">Constraint</a>* <span class="keyword">const</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> : <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->constraints()) {</div>
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|
<div class="line"><a id="l00448" name="l00448"></a><span class="lineno"> 448</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->type == <span class="stringliteral">"array_int_element"</span> || <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->type == <span class="stringliteral">"array_bool_element"</span>) {</div>
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|
<div class="line"><a id="l00449" name="l00449"></a><span class="lineno"> 449</span> PresolveSimplifyElement(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
|
|
<div class="line"><a id="l00450" name="l00450"></a><span class="lineno"> 450</span> }</div>
|
|
<div class="line"><a id="l00451" name="l00451"></a><span class="lineno"> 451</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->type == <span class="stringliteral">"array_var_int_element"</span> ||</div>
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|
<div class="line"><a id="l00452" name="l00452"></a><span class="lineno"> 452</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->type == <span class="stringliteral">"array_var_bool_element"</span>) {</div>
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|
<div class="line"><a id="l00453" name="l00453"></a><span class="lineno"> 453</span> PresolveSimplifyExprElement(<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div>
|
|
<div class="line"><a id="l00454" name="l00454"></a><span class="lineno"> 454</span> }</div>
|
|
<div class="line"><a id="l00455" name="l00455"></a><span class="lineno"> 455</span> }</div>
|
|
<div class="line"><a id="l00456" name="l00456"></a><span class="lineno"> 456</span> </div>
|
|
<div class="line"><a id="l00457" name="l00457"></a><span class="lineno"> 457</span> <span class="comment">// Report presolve rules statistics.</span></div>
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|
<div class="line"><a id="l00458" name="l00458"></a><span class="lineno"> 458</span> <span class="keywordflow">if</span> (!successful_rules_.empty()) {</div>
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|
<div class="line"><a id="l00459" name="l00459"></a><span class="lineno"> 459</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& rule : successful_rules_) {</div>
|
|
<div class="line"><a id="l00460" name="l00460"></a><span class="lineno"> 460</span> <span class="keywordflow">if</span> (rule.second == 1) {</div>
|
|
<div class="line"><a id="l00461" name="l00461"></a><span class="lineno"> 461</span> <a class="code hl_define" href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a>(logger_, <span class="stringliteral">" - rule '"</span>, rule.first, <span class="stringliteral">"' was applied 1 time"</span>);</div>
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|
<div class="line"><a id="l00462" name="l00462"></a><span class="lineno"> 462</span> } <span class="keywordflow">else</span> {</div>
|
|
<div class="line"><a id="l00463" name="l00463"></a><span class="lineno"> 463</span> <a class="code hl_define" href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a>(logger_, <span class="stringliteral">" - rule '"</span>, rule.first, <span class="stringliteral">"' was applied "</span>,</div>
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|
<div class="line"><a id="l00464" name="l00464"></a><span class="lineno"> 464</span> rule.second, <span class="stringliteral">" times"</span>);</div>
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<div class="line"><a id="l00465" name="l00465"></a><span class="lineno"> 465</span> }</div>
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<div class="line"><a id="l00466" name="l00466"></a><span class="lineno"> 466</span> }</div>
|
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<div class="line"><a id="l00467" name="l00467"></a><span class="lineno"> 467</span> }</div>
|
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<div class="line"><a id="l00468" name="l00468"></a><span class="lineno"> 468</span>}</div>
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<div class="line"><a id="l00469" name="l00469"></a><span class="lineno"> 469</span> </div>
|
|
<div class="line"><a id="l00470" name="l00470"></a><span class="lineno"> 470</span><span class="comment">// ----- Substitution support -----</span></div>
|
|
<div class="line"><a id="l00471" name="l00471"></a><span class="lineno"> 471</span> </div>
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<div class="line"><a id="l00472" name="l00472"></a><span class="lineno"> 472</span><span class="keywordtype">void</span> Presolver::AddVariableSubstitution(<a class="code hl_struct" href="structoperations__research_1_1fz_1_1_variable.html">Variable</a>* from, <a class="code hl_struct" href="structoperations__research_1_1fz_1_1_variable.html">Variable</a>* to) {</div>
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<div class="line"><a id="l00473" name="l00473"></a><span class="lineno"> 473</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(from != <span class="keyword">nullptr</span>);</div>
|
|
<div class="line"><a id="l00474" name="l00474"></a><span class="lineno"> 474</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(to != <span class="keyword">nullptr</span>);</div>
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|
<div class="line"><a id="l00475" name="l00475"></a><span class="lineno"> 475</span> <span class="comment">// Apply the substitutions, if any.</span></div>
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|
<div class="line"><a id="l00476" name="l00476"></a><span class="lineno"> 476</span> from = FindRepresentativeOfVar(from);</div>
|
|
<div class="line"><a id="l00477" name="l00477"></a><span class="lineno"> 477</span> to = FindRepresentativeOfVar(to);</div>
|
|
<div class="line"><a id="l00478" name="l00478"></a><span class="lineno"> 478</span> <span class="keywordflow">if</span> (to-><a class="code hl_variable" href="structoperations__research_1_1fz_1_1_variable.html#a213942fe4cf3ce5da598bb2971452f95">temporary</a>) {</div>
|
|
<div class="line"><a id="l00479" name="l00479"></a><span class="lineno"> 479</span> <span class="comment">// Let's switch to keep a non temporary as representative.</span></div>
|
|
<div class="line"><a id="l00480" name="l00480"></a><span class="lineno"> 480</span> <a class="code hl_struct" href="structoperations__research_1_1fz_1_1_variable.html">Variable</a>* tmp = to;</div>
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<div class="line"><a id="l00481" name="l00481"></a><span class="lineno"> 481</span> to = from;</div>
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<div class="line"><a id="l00482" name="l00482"></a><span class="lineno"> 482</span> from = tmp;</div>
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<div class="line"><a id="l00483" name="l00483"></a><span class="lineno"> 483</span> }</div>
|
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<div class="line"><a id="l00484" name="l00484"></a><span class="lineno"> 484</span> <span class="keywordflow">if</span> (from != to) {</div>
|
|
<div class="line"><a id="l00485" name="l00485"></a><span class="lineno"> 485</span> <a class="code hl_define" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(to-><a class="code hl_function" href="structoperations__research_1_1fz_1_1_variable.html#a79e07373c8eb2df90d9f7f6c2a192953">Merge</a>(from-><a class="code hl_variable" href="structoperations__research_1_1fz_1_1_variable.html#a9b45b3e13bd9167aab02e17e08916231">name</a>, from-><a class="code hl_variable" href="structoperations__research_1_1fz_1_1_variable.html#a1f1a69f8d8b037b72c2160ed12b3ef51">domain</a>, from-><a class="code hl_variable" href="structoperations__research_1_1fz_1_1_variable.html#a213942fe4cf3ce5da598bb2971452f95">temporary</a>));</div>
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<div class="line"><a id="l00486" name="l00486"></a><span class="lineno"> 486</span> from-><a class="code hl_variable" href="structoperations__research_1_1fz_1_1_variable.html#a03c996f9fcf0e10baeb3e700be0c409a">active</a> = <span class="keyword">false</span>;</div>
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|
<div class="line"><a id="l00487" name="l00487"></a><span class="lineno"> 487</span> var_representative_map_[from] = to;</div>
|
|
<div class="line"><a id="l00488" name="l00488"></a><span class="lineno"> 488</span> var_representative_vector_.push_back(from);</div>
|
|
<div class="line"><a id="l00489" name="l00489"></a><span class="lineno"> 489</span> }</div>
|
|
<div class="line"><a id="l00490" name="l00490"></a><span class="lineno"> 490</span>}</div>
|
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<div class="line"><a id="l00491" name="l00491"></a><span class="lineno"> 491</span> </div>
|
|
<div class="line"><a id="l00492" name="l00492"></a><span class="lineno"> 492</span>Variable* Presolver::FindRepresentativeOfVar(Variable* <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) {</div>
|
|
<div class="line"><a id="l00493" name="l00493"></a><span class="lineno"> 493</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> == <span class="keyword">nullptr</span>) <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div>
|
|
<div class="line"><a id="l00494" name="l00494"></a><span class="lineno"> 494</span> Variable* start_var = <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>;</div>
|
|
<div class="line"><a id="l00495" name="l00495"></a><span class="lineno"> 495</span> <span class="comment">// First loop: find the top parent.</span></div>
|
|
<div class="line"><a id="l00496" name="l00496"></a><span class="lineno"> 496</span> <span class="keywordflow">for</span> (;;) {</div>
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<div class="line"><a id="l00497" name="l00497"></a><span class="lineno"> 497</span> Variable* parent = <a class="code hl_function" href="namespacegtl.html#a795ebdb62731938c8c31b221f0f074b4">gtl::FindWithDefault</a>(var_representative_map_, <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00498" name="l00498"></a><span class="lineno"> 498</span> <span class="keywordflow">if</span> (parent == <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00499" name="l00499"></a><span class="lineno"> 499</span> <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = parent;</div>
|
|
<div class="line"><a id="l00500" name="l00500"></a><span class="lineno"> 500</span> }</div>
|
|
<div class="line"><a id="l00501" name="l00501"></a><span class="lineno"> 501</span> <span class="comment">// Second loop: attach all the path to the top parent.</span></div>
|
|
<div class="line"><a id="l00502" name="l00502"></a><span class="lineno"> 502</span> <span class="keywordflow">while</span> (start_var != <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) {</div>
|
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<div class="line"><a id="l00503" name="l00503"></a><span class="lineno"> 503</span> Variable* <span class="keyword">const</span> parent = var_representative_map_[start_var];</div>
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<div class="line"><a id="l00504" name="l00504"></a><span class="lineno"> 504</span> var_representative_map_[start_var] = <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>;</div>
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<div class="line"><a id="l00505" name="l00505"></a><span class="lineno"> 505</span> start_var = parent;</div>
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<div class="line"><a id="l00506" name="l00506"></a><span class="lineno"> 506</span> }</div>
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<div class="line"><a id="l00507" name="l00507"></a><span class="lineno"> 507</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespacegtl.html#a795ebdb62731938c8c31b221f0f074b4">gtl::FindWithDefault</a>(var_representative_map_, <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code hl_variable" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div>
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<div class="line"><a id="l00508" name="l00508"></a><span class="lineno"> 508</span>}</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="keywordtype">void</span> Presolver::SubstituteEverywhere(Model* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div>
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<div class="line"><a id="l00511" name="l00511"></a><span class="lineno"> 511</span> <span class="comment">// Rewrite the constraints.</span></div>
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<div class="line"><a id="l00512" name="l00512"></a><span class="lineno"> 512</span> <span class="keywordflow">for</span> (Constraint* <span class="keyword">const</span> <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> : <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->constraints()) {</div>
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<div class="line"><a id="l00513" name="l00513"></a><span class="lineno"> 513</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> != <span class="keyword">nullptr</span> && <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->active) {</div>
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<div class="line"><a id="l00514" name="l00514"></a><span class="lineno"> 514</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments.size(); ++i) {</div>
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<div class="line"><a id="l00515" name="l00515"></a><span class="lineno"> 515</span> Argument& argument = <a class="code hl_variable" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>->arguments[i];</div>
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<div class="line"><a id="l00516" name="l00516"></a><span class="lineno"> 516</span> <span class="keywordflow">switch</span> (argument.type) {</div>
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<div class="line"><a id="l00517" name="l00517"></a><span class="lineno"> 517</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="structoperations__research_1_1fz_1_1_argument.html#a1d1cfd8ffb84e947f82999c682b666a7a1617d4efaac07978f3cf0d396bb4831c">Argument::VAR_REF</a>:</div>
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<div class="line"><a id="l00518" name="l00518"></a><span class="lineno"> 518</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="structoperations__research_1_1fz_1_1_argument.html#a1d1cfd8ffb84e947f82999c682b666a7ac1636609a56ee54ea3cd71a1f645a052">Argument::VAR_REF_ARRAY</a>: {</div>
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<div class="line"><a id="l00519" name="l00519"></a><span class="lineno"> 519</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < argument.variables.size(); ++i) {</div>
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<div class="line"><a id="l00520" name="l00520"></a><span class="lineno"> 520</span> Variable* <span class="keyword">const</span> old_var = argument.variables[i];</div>
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<div class="line"><a id="l00521" name="l00521"></a><span class="lineno"> 521</span> Variable* <span class="keyword">const</span> new_var = FindRepresentativeOfVar(old_var);</div>
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<div class="line"><a id="l00522" name="l00522"></a><span class="lineno"> 522</span> <span class="keywordflow">if</span> (new_var != old_var) {</div>
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<div class="line"><a id="l00523" name="l00523"></a><span class="lineno"> 523</span> argument.variables[i] = new_var;</div>
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<div class="line"><a id="l00524" name="l00524"></a><span class="lineno"> 524</span> }</div>
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<div class="line"><a id="l00525" name="l00525"></a><span class="lineno"> 525</span> }</div>
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<div class="line"><a id="l00526" name="l00526"></a><span class="lineno"> 526</span> <span class="keywordflow">break</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> <span class="keywordflow">default</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> }</div>
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<div class="line"><a id="l00532" name="l00532"></a><span class="lineno"> 532</span> }</div>
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<div class="line"><a id="l00533" name="l00533"></a><span class="lineno"> 533</span> }</div>
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<div class="line"><a id="l00534" name="l00534"></a><span class="lineno"> 534</span> <span class="comment">// Rewrite the search.</span></div>
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<div class="line"><a id="l00535" name="l00535"></a><span class="lineno"> 535</span> <span class="keywordflow">for</span> (Annotation* <span class="keyword">const</span> ann : <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->mutable_search_annotations()) {</div>
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<div class="line"><a id="l00536" name="l00536"></a><span class="lineno"> 536</span> SubstituteAnnotation(ann);</div>
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<div class="line"><a id="l00537" name="l00537"></a><span class="lineno"> 537</span> }</div>
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<div class="line"><a id="l00538" name="l00538"></a><span class="lineno"> 538</span> <span class="comment">// Rewrite the output.</span></div>
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<div class="line"><a id="l00539" name="l00539"></a><span class="lineno"> 539</span> <span class="keywordflow">for</span> (SolutionOutputSpecs* <span class="keyword">const</span> output : <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->mutable_output()) {</div>
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<div class="line"><a id="l00540" name="l00540"></a><span class="lineno"> 540</span> output->variable = FindRepresentativeOfVar(output->variable);</div>
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<div class="line"><a id="l00541" name="l00541"></a><span class="lineno"> 541</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < output->flat_variables.size(); ++i) {</div>
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<div class="line"><a id="l00542" name="l00542"></a><span class="lineno"> 542</span> output->flat_variables[i] =</div>
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<div class="line"><a id="l00543" name="l00543"></a><span class="lineno"> 543</span> FindRepresentativeOfVar(output->flat_variables[i]);</div>
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<div class="line"><a id="l00544" name="l00544"></a><span class="lineno"> 544</span> }</div>
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<div class="line"><a id="l00545" name="l00545"></a><span class="lineno"> 545</span> }</div>
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<div class="line"><a id="l00546" name="l00546"></a><span class="lineno"> 546</span> <span class="comment">// Do not forget to merge domain that could have evolved asynchronously</span></div>
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<div class="line"><a id="l00547" name="l00547"></a><span class="lineno"> 547</span> <span class="comment">// during presolve.</span></div>
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<div class="line"><a id="l00548" name="l00548"></a><span class="lineno"> 548</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>& iter : var_representative_map_) {</div>
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<div class="line"><a id="l00549" name="l00549"></a><span class="lineno"> 549</span> iter.second->domain.IntersectWithDomain(iter.first->domain);</div>
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<div class="line"><a id="l00550" name="l00550"></a><span class="lineno"> 550</span> }</div>
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<div class="line"><a id="l00551" name="l00551"></a><span class="lineno"> 551</span> </div>
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<div class="line"><a id="l00552" name="l00552"></a><span class="lineno"> 552</span> <span class="comment">// Change the objective variable.</span></div>
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<div class="line"><a id="l00553" name="l00553"></a><span class="lineno"> 553</span> Variable* <span class="keyword">const</span> current_objective = <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->objective();</div>
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<div class="line"><a id="l00554" name="l00554"></a><span class="lineno"> 554</span> <span class="keywordflow">if</span> (current_objective == <span class="keyword">nullptr</span>) <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00555" name="l00555"></a><span class="lineno"> 555</span> Variable* <span class="keyword">const</span> new_objective = FindRepresentativeOfVar(current_objective);</div>
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<div class="line"><a id="l00556" name="l00556"></a><span class="lineno"> 556</span> <span class="keywordflow">if</span> (new_objective != current_objective) {</div>
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<div class="line"><a id="l00557" name="l00557"></a><span class="lineno"> 557</span> <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>->SetObjective(new_objective);</div>
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<div class="line"><a id="l00558" name="l00558"></a><span class="lineno"> 558</span> }</div>
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<div class="line"><a id="l00559" name="l00559"></a><span class="lineno"> 559</span>}</div>
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<div class="line"><a id="l00560" name="l00560"></a><span class="lineno"> 560</span> </div>
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<div class="line"><a id="l00561" name="l00561"></a><span class="lineno"> 561</span><span class="keywordtype">void</span> Presolver::SubstituteAnnotation(Annotation* ann) {</div>
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|
<div class="line"><a id="l00562" name="l00562"></a><span class="lineno"> 562</span> <span class="comment">// TODO(user): Remove recursion.</span></div>
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<div class="line"><a id="l00563" name="l00563"></a><span class="lineno"> 563</span> <span class="keywordflow">switch</span> (ann->type) {</div>
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<div class="line"><a id="l00564" name="l00564"></a><span class="lineno"> 564</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="structoperations__research_1_1fz_1_1_annotation.html#a1d1cfd8ffb84e947f82999c682b666a7ae832fcf956a32fd8766a7a99a9eb49f2">Annotation::ANNOTATION_LIST</a>:</div>
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<div class="line"><a id="l00565" name="l00565"></a><span class="lineno"> 565</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="structoperations__research_1_1fz_1_1_annotation.html#a1d1cfd8ffb84e947f82999c682b666a7a026071c79ad175ff5edb80a307ed2e1d">Annotation::FUNCTION_CALL</a>: {</div>
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<div class="line"><a id="l00566" name="l00566"></a><span class="lineno"> 566</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < ann->annotations.size(); ++i) {</div>
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<div class="line"><a id="l00567" name="l00567"></a><span class="lineno"> 567</span> SubstituteAnnotation(&ann->annotations[i]);</div>
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<div class="line"><a id="l00568" name="l00568"></a><span class="lineno"> 568</span> }</div>
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<div class="line"><a id="l00569" name="l00569"></a><span class="lineno"> 569</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00570" name="l00570"></a><span class="lineno"> 570</span> }</div>
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<div class="line"><a id="l00571" name="l00571"></a><span class="lineno"> 571</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="structoperations__research_1_1fz_1_1_annotation.html#a1d1cfd8ffb84e947f82999c682b666a7a1617d4efaac07978f3cf0d396bb4831c">Annotation::VAR_REF</a>:</div>
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<div class="line"><a id="l00572" name="l00572"></a><span class="lineno"> 572</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="structoperations__research_1_1fz_1_1_annotation.html#a1d1cfd8ffb84e947f82999c682b666a7ac1636609a56ee54ea3cd71a1f645a052">Annotation::VAR_REF_ARRAY</a>: {</div>
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<div class="line"><a id="l00573" name="l00573"></a><span class="lineno"> 573</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < ann->variables.size(); ++i) {</div>
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<div class="line"><a id="l00574" name="l00574"></a><span class="lineno"> 574</span> ann->variables[i] = FindRepresentativeOfVar(ann->variables[i]);</div>
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<div class="line"><a id="l00575" name="l00575"></a><span class="lineno"> 575</span> }</div>
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<div class="line"><a id="l00576" name="l00576"></a><span class="lineno"> 576</span> <span class="keywordflow">break</span>;</div>
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<div class="line"><a id="l00577" name="l00577"></a><span class="lineno"> 577</span> }</div>
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<div class="line"><a id="l00578" name="l00578"></a><span class="lineno"> 578</span> <span class="keywordflow">default</span>: {</div>
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<div class="line"><a id="l00579" name="l00579"></a><span class="lineno"> 579</span> }</div>
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<div class="line"><a id="l00580" name="l00580"></a><span class="lineno"> 580</span> }</div>
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<div class="line"><a id="l00581" name="l00581"></a><span class="lineno"> 581</span>}</div>
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<div class="line"><a id="l00582" name="l00582"></a><span class="lineno"> 582</span> </div>
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<div class="line"><a id="l00583" name="l00583"></a><span class="lineno"> 583</span>} <span class="comment">// namespace fz</span></div>
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<div class="line"><a id="l00584" name="l00584"></a><span class="lineno"> 584</span>} <span class="comment">// namespace operations_research</span></div>
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<div class="ttc" id="abase_2logging_8h_html_a3e1cfef60e774a81f30eaddf26a3a274"><div class="ttname"><a href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a></div><div class="ttdeci">#define CHECK(condition)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00495">base/logging.h:495</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_a7c0ce053b28d53aa4eaf3eb7fb71663b"><div class="ttname"><a href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a></div><div class="ttdeci">#define CHECK_EQ(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00703">base/logging.h:703</a></div></div>
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<div class="ttc" id="abase_2logging_8h_html_ae89df3243bbb8341130c7b3f44145ea0"><div class="ttname"><a href="base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a></div><div class="ttdeci">#define DCHECK_EQ(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00891">base/logging.h:891</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1fz_1_1_model_html"><div class="ttname"><a href="classoperations__research_1_1fz_1_1_model.html">operations_research::fz::Model</a></div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00338">flatzinc/model.h:338</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1fz_1_1_presolver_html_a960560379eec069d2062a118b0b9868d"><div class="ttname"><a href="classoperations__research_1_1fz_1_1_presolver.html#a960560379eec069d2062a118b0b9868d">operations_research::fz::Presolver::Run</a></div><div class="ttdeci">void Run(Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="presolve_8cc_source.html#l00367">presolve.cc:367</a></div></div>
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<div class="ttc" id="acliques_8h_html"><div class="ttname"><a href="cliques_8h.html">cliques.h</a></div></div>
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<div class="ttc" id="ademon__profiler_8cc_html_a05da18ca9c7b657a4a6ea24e07c9b695"><div class="ttname"><a href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a></div><div class="ttdeci">const Constraint * ct</div><div class="ttdef"><b>Definition:</b> <a href="demon__profiler_8cc_source.html#l00043">demon_profiler.cc:43</a></div></div>
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<div class="ttc" id="ademon__profiler_8cc_html_ac072af30c4ffbc834bb4c681f6ecb514"><div class="ttname"><a href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a></div><div class="ttdeci">int64_t value</div><div class="ttdef"><b>Definition:</b> <a href="demon__profiler_8cc_source.html#l00044">demon_profiler.cc:44</a></div></div>
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<div class="ttc" id="aexpr__array_8cc_html_a472a99923cbe11ae7b5a5d157d9ad465"><div class="ttname"><a href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a></div><div class="ttdeci">IntVar * var</div><div class="ttdef"><b>Definition:</b> <a href="expr__array_8cc_source.html#l01874">expr_array.cc:1874</a></div></div>
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<div class="ttc" id="aflatzinc_2model_8h_html"><div class="ttname"><a href="flatzinc_2model_8h.html">model.h</a></div></div>
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<div class="ttc" id="agurobi__interface_8cc_html_a0728f23c9a47655d38e0bf1a2f200bcf"><div class="ttname"><a href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a></div><div class="ttdeci">GRBmodel * model</div><div class="ttdef"><b>Definition:</b> <a href="gurobi__interface_8cc_source.html#l00274">gurobi_interface.cc:274</a></div></div>
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<div class="ttc" id="alocal__search_8cc_html_a750b5d744c39a06bfb13e6eb010e35d0"><div class="ttname"><a href="local__search_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a></div><div class="ttdeci">int index</div><div class="ttdef"><b>Definition:</b> <a href="local__search_8cc_source.html#l02750">local_search.cc:2750</a></div></div>
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<div class="ttc" id="amap__util_8h_html"><div class="ttname"><a href="map__util_8h.html">map_util.h</a></div></div>
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<div class="ttc" id="anamespacegtl_html_a795ebdb62731938c8c31b221f0f074b4"><div class="ttname"><a href="namespacegtl.html#a795ebdb62731938c8c31b221f0f074b4">gtl::FindWithDefault</a></div><div class="ttdeci">const Collection::value_type::second_type & FindWithDefault(const Collection &collection, const typename Collection::value_type::first_type &key, const typename Collection::value_type::second_type &value)</div><div class="ttdef"><b>Definition:</b> <a href="map__util_8h_source.html#l00029">map_util.h:29</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html"><div class="ttname"><a href="namespaceoperations__research.html">operations_research</a></div><div class="ttdoc">Collection of objects used to extend the Constraint Solver library.</div><div class="ttdef"><b>Definition:</b> <a href="dense__doubly__linked__list_8h_source.html#l00021">dense_doubly_linked_list.h:21</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html_a3f4525e71a6b05d97c868f0832750a60"><div class="ttname"><a href="namespaceoperations__research.html#a3f4525e71a6b05d97c868f0832750a60">operations_research::IsArrayBoolean</a></div><div class="ttdeci">bool IsArrayBoolean(const std::vector< T > &values)</div><div class="ttdef"><b>Definition:</b> <a href="constraint__solveri_8h_source.html#l02856">constraint_solveri.h:2856</a></div></div>
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<div class="ttc" id="apresolve_8cc_html_a85a30e24f0795defde283775b2bd0a71"><div class="ttname"><a href="presolve_8cc.html#a85a30e24f0795defde283775b2bd0a71">ABSL_FLAG</a></div><div class="ttdeci">ABSL_FLAG(bool, fz_floats_are_ints, false, "Interpret floats as integers in all variables and constraints.")</div></div>
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<div class="ttc" id="apresolve_8h_html"><div class="ttname"><a href="presolve_8h.html">presolve.h</a></div></div>
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<div class="ttc" id="asaturated__arithmetic_8h_html"><div class="ttname"><a href="saturated__arithmetic_8h.html">saturated_arithmetic.h</a></div></div>
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<div class="ttc" id="asparse__submatrix_8cc_html_a9b7656b922ea4ec96097d7380c0e61fe"><div class="ttname"><a href="sparse__submatrix_8cc.html#a9b7656b922ea4ec96097d7380c0e61fe">start</a></div><div class="ttdeci">int64_t start</div><div class="ttdef"><b>Definition:</b> <a href="sparse__submatrix_8cc_source.html#l00035">sparse_submatrix.cc:35</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_annotation_html_a1d1cfd8ffb84e947f82999c682b666a7a026071c79ad175ff5edb80a307ed2e1d"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_annotation.html#a1d1cfd8ffb84e947f82999c682b666a7a026071c79ad175ff5edb80a307ed2e1d">operations_research::fz::Annotation::FUNCTION_CALL</a></div><div class="ttdeci">@ FUNCTION_CALL</div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00265">flatzinc/model.h:265</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_annotation_html_a1d1cfd8ffb84e947f82999c682b666a7a1617d4efaac07978f3cf0d396bb4831c"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_annotation.html#a1d1cfd8ffb84e947f82999c682b666a7a1617d4efaac07978f3cf0d396bb4831c">operations_research::fz::Annotation::VAR_REF</a></div><div class="ttdeci">@ VAR_REF</div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00268">flatzinc/model.h:268</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_annotation_html_a1d1cfd8ffb84e947f82999c682b666a7ac1636609a56ee54ea3cd71a1f645a052"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_annotation.html#a1d1cfd8ffb84e947f82999c682b666a7ac1636609a56ee54ea3cd71a1f645a052">operations_research::fz::Annotation::VAR_REF_ARRAY</a></div><div class="ttdeci">@ VAR_REF_ARRAY</div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00269">flatzinc/model.h:269</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_annotation_html_a1d1cfd8ffb84e947f82999c682b666a7ae832fcf956a32fd8766a7a99a9eb49f2"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_annotation.html#a1d1cfd8ffb84e947f82999c682b666a7ae832fcf956a32fd8766a7a99a9eb49f2">operations_research::fz::Annotation::ANNOTATION_LIST</a></div><div class="ttdeci">@ ANNOTATION_LIST</div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00263">flatzinc/model.h:263</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_argument_html_a17ec4fe4babfccf5331e8ba0a0ff87ba"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_argument.html#a17ec4fe4babfccf5331e8ba0a0ff87ba">operations_research::fz::Argument::VarRef</a></div><div class="ttdeci">static Argument VarRef(Variable *const var)</div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8cc_source.html#l00519">flatzinc/model.cc:519</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_argument_html_a1d1cfd8ffb84e947f82999c682b666a7a1617d4efaac07978f3cf0d396bb4831c"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_argument.html#a1d1cfd8ffb84e947f82999c682b666a7a1617d4efaac07978f3cf0d396bb4831c">operations_research::fz::Argument::VAR_REF</a></div><div class="ttdeci">@ VAR_REF</div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00164">flatzinc/model.h:164</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_argument_html_a1d1cfd8ffb84e947f82999c682b666a7ac1636609a56ee54ea3cd71a1f645a052"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_argument.html#a1d1cfd8ffb84e947f82999c682b666a7ac1636609a56ee54ea3cd71a1f645a052">operations_research::fz::Argument::VAR_REF_ARRAY</a></div><div class="ttdeci">@ VAR_REF_ARRAY</div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00165">flatzinc/model.h:165</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_argument_html_a1d1cfd8ffb84e947f82999c682b666a7acd1ce0b084595a6072a57781dc7738a0"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_argument.html#a1d1cfd8ffb84e947f82999c682b666a7acd1ce0b084595a6072a57781dc7738a0">operations_research::fz::Argument::INT_VALUE</a></div><div class="ttdeci">@ INT_VALUE</div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00157">flatzinc/model.h:157</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_argument_html_a2d7f92751913db3dbbe8de57a618d3cc"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_argument.html#a2d7f92751913db3dbbe8de57a618d3cc">operations_research::fz::Argument::IntegerList</a></div><div class="ttdeci">static Argument IntegerList(std::vector< int64_t > values)</div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8cc_source.html#l00505">flatzinc/model.cc:505</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_argument_html_a539a9c8349b56ed3655cdca1144453ae"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_argument.html#a539a9c8349b56ed3655cdca1144453ae">operations_research::fz::Argument::VarRefArray</a></div><div class="ttdeci">static Argument VarRefArray(std::vector< Variable * > vars)</div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8cc_source.html#l00526">flatzinc/model.cc:526</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_argument_html_a6675e5508095375dfc786c7e71a341f8"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_argument.html#a6675e5508095375dfc786c7e71a341f8">operations_research::fz::Argument::IntegerValue</a></div><div class="ttdeci">static Argument IntegerValue(int64_t value)</div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8cc_source.html#l00490">flatzinc/model.cc:490</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_constraint_html"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_constraint.html">operations_research::fz::Constraint</a></div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00219">flatzinc/model.h:219</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_variable_html"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_variable.html">operations_research::fz::Variable</a></div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00120">flatzinc/model.h:120</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_variable_html_a03c996f9fcf0e10baeb3e700be0c409a"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_variable.html#a03c996f9fcf0e10baeb3e700be0c409a">operations_research::fz::Variable::active</a></div><div class="ttdeci">bool active</div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00145">flatzinc/model.h:145</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_variable_html_a1f1a69f8d8b037b72c2160ed12b3ef51"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_variable.html#a1f1a69f8d8b037b72c2160ed12b3ef51">operations_research::fz::Variable::domain</a></div><div class="ttdeci">Domain domain</div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00137">flatzinc/model.h:137</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_variable_html_a213942fe4cf3ce5da598bb2971452f95"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_variable.html#a213942fe4cf3ce5da598bb2971452f95">operations_research::fz::Variable::temporary</a></div><div class="ttdeci">bool temporary</div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00141">flatzinc/model.h:141</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_variable_html_a79e07373c8eb2df90d9f7f6c2a192953"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_variable.html#a79e07373c8eb2df90d9f7f6c2a192953">operations_research::fz::Variable::Merge</a></div><div class="ttdeci">bool Merge(absl::string_view other_name, const Domain &other_domain, bool other_temporary)</div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8cc_source.html#l00772">flatzinc/model.cc:772</a></div></div>
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<div class="ttc" id="astructoperations__research_1_1fz_1_1_variable_html_a9b45b3e13bd9167aab02e17e08916231"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_variable.html#a9b45b3e13bd9167aab02e17e08916231">operations_research::fz::Variable::name</a></div><div class="ttdeci">std::string name</div><div class="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00136">flatzinc/model.h:136</a></div></div>
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<div class="ttc" id="autil_2logging_8h_html_a5f67b653dd99ddbe5e3367e3b4b7b532"><div class="ttname"><a href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a></div><div class="ttdeci">#define SOLVER_LOG(logger,...)</div><div class="ttdef"><b>Definition:</b> <a href="util_2logging_8h_source.html#l00069">util/logging.h:69</a></div></div>
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<div class="ttc" id="avector__map_8h_html"><div class="ttname"><a href="vector__map_8h.html">vector_map.h</a></div></div>
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