always-cautious/ortools-clone
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
a2ad6677e14bd4f0e40ee41c6093ebc8ce88c4d3
ortools-clone/docs/cpp/presolve_8cc_source.html
Laurent Perron a2ad6677e1 regenerate doc
2022-01-16 18:02:36 +01:00

150 lines
119 KiB
HTML
Raw Blame History

<!-- HTML header for doxygen 1.8.18-->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.15"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>OR-Tools: presolve.cc Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtreedata.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
$(document).ready(initResizable);
/* @license-end */</script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="styleSheet.tmp.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectlogo"><img alt="Logo" src="orLogo.png"/></td>
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">OR-Tools
&#160;<span id="projectnumber">9.2</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.15 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
var searchBox = new SearchBox("searchBox", "search",false,'Search');
/* @license-end */
</script>
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
$(function() {
initMenu('',true,false,'search.php','Search');
$(document).ready(function() { init_search(); });
});
/* @license-end */</script>
<div id="main-nav"></div>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
<div id="nav-sync" class="sync"></div>
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
$(document).ready(function(){initNavTree('presolve_8cc_source.html','');});
/* @license-end */
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div class="header">
<div class="headertitle">
<div class="title">presolve.cc</div> </div>
</div><!--header-->
<div class="contents">
<a href="presolve_8cc.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright 2010-2021 Google LLC</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">// Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// you may not use this file except in compliance with the License.</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">// You may obtain a copy of the License at</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment">// distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment">// See the License for the specific language governing permissions and</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment">// limitations under the License.</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;</div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="presolve_8h.html">ortools/flatzinc/presolve.h</a>&quot;</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;</div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &lt;cstdint&gt;</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#include &lt;map&gt;</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor">#include &lt;set&gt;</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#include &quot;absl/strings/match.h&quot;</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#include &quot;absl/strings/str_format.h&quot;</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="preprocessor">#include &quot;absl/strings/str_join.h&quot;</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &quot;absl/strings/string_view.h&quot;</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="map__util_8h.html">ortools/base/map_util.h</a>&quot;</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="flatzinc_2model_8h.html">ortools/flatzinc/model.h</a>&quot;</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="cliques_8h.html">ortools/graph/cliques.h</a>&quot;</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="saturated__arithmetic_8h.html">ortools/util/saturated_arithmetic.h</a>&quot;</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="vector__map_8h.html">ortools/util/vector_map.h</a>&quot;</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<a class="code" href="presolve_8cc.html#a85a30e24f0795defde283775b2bd0a71">ABSL_FLAG</a>(<span class="keywordtype">bool</span>, fz_floats_are_ints, <span class="keyword">false</span>,</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; <span class="stringliteral">&quot;Interpret floats as integers in all variables and constraints.&quot;</span>);</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceoperations__research.html">operations_research</a> {</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;<span class="keyword">namespace </span>fz {</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;<span class="keyword">namespace </span>{</div><div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="presolve_8cc.html#ae7d5fdf798faf3ed78c1dff230a0e384"> 36</a></span>&#160;<span class="keyword">enum</span> <a class="code" href="presolve_8cc.html#ae7d5fdf798faf3ed78c1dff230a0e384">PresolveState</a> { ALWAYS_FALSE, ALWAYS_TRUE, UNDECIDED };</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;<span class="keywordtype">bool</span> <a class="code" href="namespaceoperations__research.html#a3f4525e71a6b05d97c868f0832750a60">IsArrayBoolean</a>(<span class="keyword">const</span> std::vector&lt;T&gt;&amp; values) {</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; values.size(); ++i) {</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="keywordflow">if</span> (values[i] != 0 &amp;&amp; values[i] != 1) {</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; }</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; }</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;}</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;<span class="keywordtype">bool</span> AtMostOne0OrAtMostOne1(<span class="keyword">const</span> std::vector&lt;T&gt;&amp; values) {</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <a class="code" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(<a class="code" href="namespaceoperations__research.html#a3f4525e71a6b05d97c868f0832750a60">IsArrayBoolean</a>(values));</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="keywordtype">int</span> num_zero = 0;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keywordtype">int</span> num_one = 0;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <span class="keywordflow">for</span> (T val : values) {</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="keywordflow">if</span> (val) {</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; num_one++;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; num_zero++;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; }</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <span class="keywordflow">if</span> (num_one &gt; 1 &amp;&amp; num_zero &gt; 1) {</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; }</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; }</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160;}</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160;<span class="keywordtype">void</span> AppendIfNotInSet(T* <a class="code" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>, absl::flat_hash_set&lt;T*&gt;* s,</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; std::vector&lt;T*&gt;* vec) {</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <span class="keywordflow">if</span> (s-&gt;insert(<a class="code" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>).second) {</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; vec-&gt;push_back(<a class="code" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>);</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; }</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; <a class="code" href="base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(s-&gt;size(), vec-&gt;size());</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160;}</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160;</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160;} <span class="comment">// namespace</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160;</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;<span class="comment">// Note on documentation</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160;<span class="comment">// In order to document presolve rules, we will use the following naming</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160;<span class="comment">// convention:</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160;<span class="comment">// - x, x1, xi, y, y1, yi denote integer variables</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160;<span class="comment">// - b, b1, bi denote boolean variables</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160;<span class="comment">// - c, c1, ci denote integer constants</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160;<span class="comment">// - t, t1, ti denote boolean constants</span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160;<span class="comment">// - =&gt; x after a constraint denotes the target variable of this constraint.</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;<span class="comment">// Arguments are listed in order.</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;<span class="comment">// Propagates cast constraint.</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;<span class="comment">// Rule 1:</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;<span class="comment">// Input: bool2int(b, c) or bool2int(t, x)</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;<span class="comment">// Output: int_eq(...)</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160;<span class="comment">// Rule 2:</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160;<span class="comment">// Input: bool2int(b, x)</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;<span class="comment">// Action: Replace all instances of x by b.</span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;<span class="comment">// Output: inactive constraint</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;<span class="keywordtype">void</span> Presolver::PresolveBool2Int(Constraint* <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>) {</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <a class="code" href="base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type, <span class="stringliteral">&quot;bool2int&quot;</span>);</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].HasOneValue() || <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].HasOneValue()) {</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="comment">// Rule 1.</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; UpdateRuleStats(<span class="stringliteral">&quot;bool2int: rename to int_eq&quot;</span>);</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type = <span class="stringliteral">&quot;int_eq&quot;</span>;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="comment">// Rule 2.</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; UpdateRuleStats(<span class="stringliteral">&quot;bool2int: merge boolean and integer variables.&quot;</span>);</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; AddVariableSubstitution(<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].Var(), <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].Var());</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;MarkAsInactive();</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; }</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160;}</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160;<span class="comment">// Minizinc flattens 2d element constraints (x = A[y][z]) into 1d element</span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160;<span class="comment">// constraint with an affine mapping between y, z and the new index.</span></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160;<span class="comment">// This rule stores the mapping to reconstruct the 2d element constraint.</span></div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160;<span class="comment">// This mapping can involve 1 or 2 variables depending if y or z in A[y][z]</span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160;<span class="comment">// is a constant in the model).</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160;<span class="keywordtype">void</span> Presolver::PresolveStoreAffineMapping(Constraint* <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>) {</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <a class="code" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(2, <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].variables.size());</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; Variable* <span class="keyword">const</span> var0 = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].variables[0];</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; Variable* <span class="keyword">const</span> var1 = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].variables[1];</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; <span class="keyword">const</span> int64_t coeff0 = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].values[0];</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="keyword">const</span> int64_t coeff1 = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].values[1];</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <span class="keyword">const</span> int64_t rhs = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[2].Value();</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; <span class="keywordflow">if</span> (coeff0 == -1 &amp;&amp; !affine_map_.contains(var0)) {</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; affine_map_[var0] = AffineMapping(var1, coeff0, -rhs, <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; UpdateRuleStats(<span class="stringliteral">&quot;int_lin_eq: store affine mapping&quot;</span>);</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (coeff1 == -1 &amp;&amp; !affine_map_.contains(var1)) {</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; affine_map_[var1] = AffineMapping(var0, coeff0, -rhs, <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; UpdateRuleStats(<span class="stringliteral">&quot;int_lin_eq: store affine mapping&quot;</span>);</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; }</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160;}</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160;</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160;<span class="keywordtype">void</span> Presolver::PresolveStoreFlatteningMapping(Constraint* <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>) {</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; <a class="code" href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a>(3, <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].variables.size());</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; Variable* <span class="keyword">const</span> var0 = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].variables[0];</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; Variable* <span class="keyword">const</span> var1 = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].variables[1];</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; Variable* <span class="keyword">const</span> var2 = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].variables[2];</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <span class="keyword">const</span> int64_t coeff0 = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].values[0];</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <span class="keyword">const</span> int64_t coeff1 = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].values[1];</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; <span class="keyword">const</span> int64_t coeff2 = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].values[2];</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; <span class="keyword">const</span> int64_t rhs = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[2].Value();</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; <span class="keywordflow">if</span> (coeff0 == -1 &amp;&amp; coeff2 == 1 &amp;&amp; !array2d_index_map_.contains(var0)) {</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; array2d_index_map_[var0] =</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; Array2DIndexMapping(var1, coeff1, var2, -rhs, <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; UpdateRuleStats(<span class="stringliteral">&quot;int_lin_eq: store 2d flattening mapping&quot;</span>);</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (coeff0 == -1 &amp;&amp; coeff1 == 1 &amp;&amp;</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; !array2d_index_map_.contains(var0)) {</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; array2d_index_map_[var0] =</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; Array2DIndexMapping(var2, coeff2, var1, -rhs, <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; UpdateRuleStats(<span class="stringliteral">&quot;int_lin_eq: store 2d flattening mapping&quot;</span>);</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (coeff2 == -1 &amp;&amp; coeff1 == 1 &amp;&amp;</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; !array2d_index_map_.contains(var2)) {</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; array2d_index_map_[var2] =</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; Array2DIndexMapping(var0, coeff0, var1, -rhs, <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; UpdateRuleStats(<span class="stringliteral">&quot;int_lin_eq: store 2d flattening mapping&quot;</span>);</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (coeff2 == -1 &amp;&amp; coeff0 == 1 &amp;&amp;</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; !array2d_index_map_.contains(var2)) {</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; array2d_index_map_[var2] =</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; Array2DIndexMapping(var1, coeff1, var0, -rhs, <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; UpdateRuleStats(<span class="stringliteral">&quot;int_lin_eq: store 2d flattening mapping&quot;</span>);</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; }</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160;}</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160;</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160;<span class="keyword">namespace </span>{</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160;<span class="keywordtype">bool</span> IsIncreasingAndContiguous(<span class="keyword">const</span> std::vector&lt;int64_t&gt;&amp; values) {</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; values.size() - 1; ++i) {</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; <span class="keywordflow">if</span> (values[i + 1] != values[i] + 1) {</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; }</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; }</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160;}</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160;<span class="keywordtype">bool</span> AreOnesFollowedByMinusOne(<span class="keyword">const</span> std::vector&lt;int64_t&gt;&amp; coeffs) {</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; <a class="code" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(!coeffs.empty());</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; coeffs.size() - 1; ++i) {</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; <span class="keywordflow">if</span> (coeffs[i] != 1) {</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; }</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; }</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; <span class="keywordflow">return</span> coeffs.back() == -1;</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160;}</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160;</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160;<span class="keywordtype">bool</span> IsStrictPrefix(<span class="keyword">const</span> std::vector&lt;T&gt;&amp; v1, <span class="keyword">const</span> std::vector&lt;T&gt;&amp; v2) {</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; <span class="keywordflow">if</span> (v1.size() &gt;= v2.size()) {</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; }</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; v1.size(); ++i) {</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; <span class="keywordflow">if</span> (v1[i] != v2[i]) {</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; }</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; }</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160;}</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160;} <span class="comment">// namespace</span></div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160;</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160;<span class="comment">// Rewrite array element: array_int_element:</span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160;<span class="comment">// Rule 1:</span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160;<span class="comment">// Input : array_int_element(x0, [c1, .., cn], y) with x0 = a * x + b</span></div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160;<span class="comment">// Output: array_int_element(x, [c_a1, .., c_am], b) with a * i = b = ai</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160;<span class="comment">// Rule 2:</span></div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160;<span class="comment">// Input : array_int_element(x, [c1, .., cn], y) with x = a * x1 + x2 + b</span></div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160;<span class="comment">// Output: array_int_element([x1, x2], [c_a1, .., c_am], b, [a, b])</span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160;<span class="comment">// to be interpreted by the extraction process.</span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160;<span class="comment">// Rule 3:</span></div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160;<span class="comment">// Input: array_int_element(x, [c1, .., cn], y)</span></div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160;<span class="comment">// Output array_int_element(x, [c1, .., c{max(x)}], y)</span></div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160;<span class="comment">// Rule 4:</span></div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160;<span class="comment">// Input : array_int_element(x, [c1, .., cn], y) with x0 ci = c0 + i</span></div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160;<span class="comment">// Output: int_lin_eq([-1, 1], [y, x], 1 - c) (e.g. y = x + c - 1)</span></div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160;<span class="keywordtype">void</span> Presolver::PresolveSimplifyElement(Constraint* <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>) {</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].variables.size() != 1) <span class="keywordflow">return</span>;</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; Variable* <span class="keyword">const</span> index_var = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].Var();</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160;</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; <span class="comment">// Rule 1.</span></div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; <span class="keywordflow">if</span> (affine_map_.contains(index_var)) {</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; <span class="keyword">const</span> AffineMapping&amp; mapping = affine_map_[index_var];</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; <span class="keyword">const</span> Domain&amp; domain = mapping.variable-&gt;domain;</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; <span class="keywordflow">if</span> (domain.is_interval &amp;&amp; domain.values.empty()) {</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; <span class="comment">// Invalid case. Ignore it.</span></div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; <span class="keywordflow">return</span>;</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; }</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160; <span class="keywordflow">if</span> (domain.values[0] == 0 &amp;&amp; mapping.coefficient == 1 &amp;&amp;</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160; mapping.offset &gt; 1 &amp;&amp; index_var-&gt;domain.is_interval) {</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160; <span class="comment">// Simple translation</span></div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> offset = mapping.offset - 1;</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160; <span class="keyword">const</span> <span class="keywordtype">int</span> size = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].values.size();</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; size - offset; ++i) {</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].values[i] = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].values[i + offset];</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; }</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].values.resize(size - offset);</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; affine_map_[index_var].constraint-&gt;arguments[2].values[0] = -1;</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; affine_map_[index_var].offset = 1;</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; index_var-&gt;domain.values[0] -= offset;</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; index_var-&gt;domain.values[1] -= offset;</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; UpdateRuleStats(<span class="stringliteral">&quot;array_int_element: simplify using affine mapping.&quot;</span>);</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; <span class="keywordflow">return</span>;</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (mapping.offset + mapping.coefficient &gt; 0 &amp;&amp;</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; domain.values[0] &gt; 0) {</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; <span class="keyword">const</span> std::vector&lt;int64_t&gt;&amp; values = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].values;</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; std::vector&lt;int64_t&gt; new_values;</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; <span class="keywordflow">for</span> (int64_t i = 1; i &lt;= domain.values.back(); ++i) {</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; <span class="keyword">const</span> int64_t <a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> = i * mapping.coefficient + mapping.offset - 1;</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> &lt; 0) {</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; <span class="keywordflow">return</span>;</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; }</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> &gt; values.size()) {</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; <span class="keywordflow">break</span>;</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160; }</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; new_values.push_back(values[<a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>]);</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160; }</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; <span class="comment">// Rewrite constraint.</span></div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; UpdateRuleStats(<span class="stringliteral">&quot;array_int_element: simplify using affine mapping.&quot;</span>);</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].variables[0] = mapping.variable;</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].variables[0]-&gt;domain.IntersectWithInterval(</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160; 1, new_values.size());</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160; <span class="comment">// TODO(user): Encapsulate argument setters.</span></div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].values.swap(new_values);</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].values.size() == 1) {</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].type = <a class="code" href="structoperations__research_1_1fz_1_1_argument.html#a1d1cfd8ffb84e947f82999c682b666a7acd1ce0b084595a6072a57781dc7738a0">Argument::INT_VALUE</a>;</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160; }</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160; <span class="comment">// Reset propagate flag.</span></div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;presolve_propagation_done = <span class="keyword">false</span>;</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160; <span class="comment">// Mark old index var and affine constraint as presolved out.</span></div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160; mapping.constraint-&gt;MarkAsInactive();</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160; index_var-&gt;active = <span class="keyword">false</span>;</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160; <span class="keywordflow">return</span>;</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160; }</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160; }</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160;</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; <span class="comment">// Rule 2.</span></div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; <span class="keywordflow">if</span> (array2d_index_map_.contains(index_var)) {</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; UpdateRuleStats(<span class="stringliteral">&quot;array_int_element: rewrite as a 2d element&quot;</span>);</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160; <span class="keyword">const</span> Array2DIndexMapping&amp; mapping = array2d_index_map_[index_var];</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160; <span class="comment">// Rewrite constraint.</span></div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0] =</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160; <a class="code" href="structoperations__research_1_1fz_1_1_argument.html#a539a9c8349b56ed3655cdca1144453ae">Argument::VarRefArray</a>({mapping.variable1, mapping.variable2});</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160; std::vector&lt;int64_t&gt; coefs;</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; coefs.push_back(mapping.coefficient);</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160; coefs.push_back(1);</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments.push_back(<a class="code" href="structoperations__research_1_1fz_1_1_argument.html#a2d7f92751913db3dbbe8de57a618d3cc">Argument::IntegerList</a>(coefs));</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments.push_back(<a class="code" href="structoperations__research_1_1fz_1_1_argument.html#a6675e5508095375dfc786c7e71a341f8">Argument::IntegerValue</a>(mapping.offset));</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160; index_var-&gt;active = <span class="keyword">false</span>;</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160; mapping.constraint-&gt;MarkAsInactive();</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; <span class="keywordflow">return</span>;</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; }</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160;</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; <span class="comment">// Rule 3.</span></div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160; <span class="keywordflow">if</span> (index_var-&gt;domain.Max() &lt; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].values.size()) {</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; <span class="comment">// Reduce array of values.</span></div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].values.resize(index_var-&gt;domain.Max());</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;presolve_propagation_done = <span class="keyword">false</span>;</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160; UpdateRuleStats(<span class="stringliteral">&quot;array_int_element: reduce array&quot;</span>);</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160; <span class="keywordflow">return</span>;</div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>&#160; }</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>&#160;</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>&#160; <span class="comment">// Rule 4.</span></div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>&#160; <span class="keywordflow">if</span> (IsIncreasingAndContiguous(<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].values) &amp;&amp;</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[2].type == <a class="code" href="structoperations__research_1_1fz_1_1_argument.html#a1d1cfd8ffb84e947f82999c682b666a7a1617d4efaac07978f3cf0d396bb4831c">Argument::VAR_REF</a>) {</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>&#160; <span class="keyword">const</span> int64_t start = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].values.front();</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>&#160; Variable* <span class="keyword">const</span> <a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].Var();</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>&#160; Variable* <span class="keyword">const</span> target = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[2].Var();</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>&#160; UpdateRuleStats(<span class="stringliteral">&quot;array_int_element: rewrite as a linear constraint&quot;</span>);</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>&#160;</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>&#160; <span class="keywordflow">if</span> (start == 1) {</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type = <span class="stringliteral">&quot;int_eq&quot;</span>;</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;RemoveArg(1);</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160; <span class="comment">// Rewrite constraint into a int_lin_eq</span></div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type = <span class="stringliteral">&quot;int_lin_eq&quot;</span>;</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0] = <a class="code" href="structoperations__research_1_1fz_1_1_argument.html#a2d7f92751913db3dbbe8de57a618d3cc">Argument::IntegerList</a>({-1, 1});</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1] = <a class="code" href="structoperations__research_1_1fz_1_1_argument.html#a539a9c8349b56ed3655cdca1144453ae">Argument::VarRefArray</a>({target, <a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>});</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[2] = <a class="code" href="structoperations__research_1_1fz_1_1_argument.html#a6675e5508095375dfc786c7e71a341f8">Argument::IntegerValue</a>(1 - start);</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160; }</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160; }</div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160;}</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160;</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160;<span class="comment">// Simplifies array_var_int_element</span></div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>&#160;<span class="comment">// Input : array_var_int_element(x0, [x1, .., xn], y) with x0 = a * x + b</span></div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>&#160;<span class="comment">// Output: array_var_int_element(x, [x_a1, .., x_an], b) with a * i = b = ai</span></div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>&#160;<span class="keywordtype">void</span> Presolver::PresolveSimplifyExprElement(Constraint* <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>) {</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].variables.size() != 1) <span class="keywordflow">return</span>;</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160;</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160; Variable* <span class="keyword">const</span> index_var = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].Var();</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160; <span class="keywordflow">if</span> (affine_map_.contains(index_var)) {</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160; <span class="keyword">const</span> AffineMapping&amp; mapping = affine_map_[index_var];</div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160; <span class="keyword">const</span> Domain&amp; domain = mapping.variable-&gt;domain;</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160; <span class="keywordflow">if</span> ((domain.is_interval &amp;&amp; domain.values.empty()) ||</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>&#160; domain.values[0] != 1 || mapping.offset + mapping.coefficient &lt;= 0) {</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>&#160; <span class="comment">// Invalid case. Ignore it.</span></div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>&#160; <span class="keywordflow">return</span>;</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>&#160; }</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>&#160; <span class="keyword">const</span> std::vector&lt;Variable*&gt;&amp; vars = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].variables;</div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>&#160; std::vector&lt;Variable*&gt; new_vars;</div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>&#160; <span class="keywordflow">for</span> (int64_t i = domain.values.front(); i &lt;= domain.values.back(); ++i) {</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>&#160; <span class="keyword">const</span> int64_t <a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> = i * mapping.coefficient + mapping.offset - 1;</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> &lt; 0) {</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>&#160; <span class="keywordflow">return</span>;</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>&#160; }</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a> &gt;= vars.size()) {</div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>&#160; <span class="keywordflow">break</span>;</div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>&#160; }</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>&#160; new_vars.push_back(vars[<a class="code" href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a>]);</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>&#160; }</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>&#160; <span class="comment">// Rewrite constraint.</span></div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>&#160; UpdateRuleStats(<span class="stringliteral">&quot;array_var_int_element: simplify using affine mapping.&quot;</span>);</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].variables[0] = mapping.variable;</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>&#160; <span class="comment">// TODO(user): Encapsulate argument setters.</span></div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].variables.swap(new_vars);</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>&#160; <span class="comment">// Mark old index var and affine constraint as presolved out.</span></div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>&#160; mapping.constraint-&gt;MarkAsInactive();</div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>&#160; index_var-&gt;active = <span class="keyword">false</span>;</div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (index_var-&gt;domain.is_interval &amp;&amp;</div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>&#160; index_var-&gt;domain.values.size() == 2 &amp;&amp;</div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>&#160; index_var-&gt;domain.Max() &lt; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].variables.size()) {</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>&#160; <span class="comment">// Reduce array of variables.</span></div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].variables.resize(index_var-&gt;domain.Max());</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>&#160; UpdateRuleStats(<span class="stringliteral">&quot;array_var_int_element: reduce array&quot;</span>);</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>&#160; }</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>&#160;}</div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>&#160;</div><div class="line"><a name="l00367"></a><span class="lineno"><a class="line" href="classoperations__research_1_1fz_1_1_presolver.html#a960560379eec069d2062a118b0b9868d"> 367</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classoperations__research_1_1fz_1_1_presolver.html#a960560379eec069d2062a118b0b9868d">Presolver::Run</a>(<a class="code" href="classoperations__research_1_1fz_1_1_model.html">Model</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>&#160; <span class="comment">// Should rewrite float constraints.</span></div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>&#160; <span class="keywordflow">if</span> (absl::GetFlag(FLAGS_fz_floats_are_ints)) {</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>&#160; <span class="comment">// Treat float variables as int variables, convert constraints to int.</span></div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>&#160; <span class="keywordflow">for</span> (<a class="code" href="structoperations__research_1_1fz_1_1_constraint.html">Constraint</a>* <span class="keyword">const</span> <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> : <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>-&gt;constraints()) {</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>&#160; <span class="keyword">const</span> std::string&amp; <span class="keywordtype">id</span> = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type;</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>&#160; <span class="keywordflow">if</span> (<span class="keywordtype">id</span> == <span class="stringliteral">&quot;int2float&quot;</span>) {</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type = <span class="stringliteral">&quot;int_eq&quot;</span>;</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<span class="keywordtype">id</span> == <span class="stringliteral">&quot;float_lin_le&quot;</span>) {</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type = <span class="stringliteral">&quot;int_lin_le&quot;</span>;</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<span class="keywordtype">id</span> == <span class="stringliteral">&quot;float_lin_eq&quot;</span>) {</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type = <span class="stringliteral">&quot;int_lin_eq&quot;</span>;</div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>&#160; }</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>&#160; }</div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>&#160; }</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>&#160;</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>&#160; <span class="comment">// Regroup increasing sequence of int_lin_eq([1,..,1,-1], [x1, ..., xn, yn])</span></div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>&#160; <span class="comment">// into sequence of int_plus(x1, x2, y2), int_plus(y2, x3, y3)...</span></div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>&#160; std::vector&lt;Variable*&gt; current_variables;</div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>&#160; <a class="code" href="structoperations__research_1_1fz_1_1_variable.html">Variable</a>* target_variable = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>&#160; <a class="code" href="structoperations__research_1_1fz_1_1_constraint.html">Constraint</a>* first_constraint = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>&#160; <span class="keywordflow">for</span> (<a class="code" href="structoperations__research_1_1fz_1_1_constraint.html">Constraint</a>* <span class="keyword">const</span> <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> : <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>-&gt;constraints()) {</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>&#160; <span class="keywordflow">if</span> (target_variable == <span class="keyword">nullptr</span>) {</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type == <span class="stringliteral">&quot;int_lin_eq&quot;</span> &amp;&amp; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].values.size() == 3 &amp;&amp;</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>&#160; AreOnesFollowedByMinusOne(<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].values) &amp;&amp;</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].values.empty() &amp;&amp; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[2].Value() == 0) {</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>&#160; current_variables = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].variables;</div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>&#160; target_variable = current_variables.back();</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>&#160; current_variables.pop_back();</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>&#160; first_constraint = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>;</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>&#160; }</div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type == <span class="stringliteral">&quot;int_lin_eq&quot;</span> &amp;&amp;</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>&#160; AreOnesFollowedByMinusOne(<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].values) &amp;&amp;</div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[0].values.size() == current_variables.size() + 2 &amp;&amp;</div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>&#160; IsStrictPrefix(current_variables, <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].variables)) {</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>&#160; current_variables = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].variables;</div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>&#160; <span class="comment">// Rewrite ct into int_plus.</span></div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type = <span class="stringliteral">&quot;int_plus&quot;</span>;</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments.clear();</div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments.push_back(<a class="code" href="structoperations__research_1_1fz_1_1_argument.html#a17ec4fe4babfccf5331e8ba0a0ff87ba">Argument::VarRef</a>(target_variable));</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments.push_back(</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>&#160; <a class="code" href="structoperations__research_1_1fz_1_1_argument.html#a17ec4fe4babfccf5331e8ba0a0ff87ba">Argument::VarRef</a>(current_variables[current_variables.size() - 2]));</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments.push_back(<a class="code" href="structoperations__research_1_1fz_1_1_argument.html#a17ec4fe4babfccf5331e8ba0a0ff87ba">Argument::VarRef</a>(current_variables.back()));</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>&#160; target_variable = current_variables.back();</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>&#160; current_variables.pop_back();</div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>&#160;</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>&#160; <span class="comment">// We clean the first constraint too.</span></div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>&#160; <span class="keywordflow">if</span> (first_constraint != <span class="keyword">nullptr</span>) {</div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>&#160; first_constraint = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>&#160; }</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>&#160; current_variables.clear();</div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>&#160; target_variable = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span>&#160; }</div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span>&#160; }</div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span>&#160; }</div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span>&#160;</div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span>&#160; <span class="comment">// First pass.</span></div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span>&#160; <span class="keywordflow">for</span> (<a class="code" href="structoperations__research_1_1fz_1_1_constraint.html">Constraint</a>* <span class="keyword">const</span> <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> : <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>-&gt;constraints()) {</div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;active &amp;&amp; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type == <span class="stringliteral">&quot;bool2int&quot;</span>) {</div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>&#160; PresolveBool2Int(<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;active &amp;&amp; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type == <span class="stringliteral">&quot;int_lin_eq&quot;</span> &amp;&amp;</div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].variables.size() == 2 &amp;&amp;</div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;strong_propagation) {</div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>&#160; PresolveStoreAffineMapping(<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;active &amp;&amp; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type == <span class="stringliteral">&quot;int_lin_eq&quot;</span> &amp;&amp;</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[1].variables.size() == 3 &amp;&amp;</div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;strong_propagation) {</div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>&#160; PresolveStoreFlatteningMapping(<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>&#160; }</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>&#160; }</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>&#160; <span class="keywordflow">if</span> (!var_representative_map_.empty()) {</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>&#160; <span class="comment">// Some new substitutions were introduced. Let&#39;s process them.</span></div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>&#160; SubstituteEverywhere(<a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>&#160; var_representative_map_.clear();</div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>&#160; var_representative_vector_.clear();</div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span>&#160; }</div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>&#160;</div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>&#160; <span class="comment">// Second pass.</span></div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>&#160; <span class="keywordflow">for</span> (<a class="code" href="structoperations__research_1_1fz_1_1_constraint.html">Constraint</a>* <span class="keyword">const</span> <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> : <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>-&gt;constraints()) {</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type == <span class="stringliteral">&quot;array_int_element&quot;</span> || <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type == <span class="stringliteral">&quot;array_bool_element&quot;</span>) {</div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>&#160; PresolveSimplifyElement(<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>&#160; }</div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type == <span class="stringliteral">&quot;array_var_int_element&quot;</span> ||</div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>&#160; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;type == <span class="stringliteral">&quot;array_var_bool_element&quot;</span>) {</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>&#160; PresolveSimplifyExprElement(<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>);</div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>&#160; }</div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span>&#160; }</div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>&#160;</div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span>&#160; <span class="comment">// Report presolve rules statistics.</span></div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span>&#160; <span class="keywordflow">if</span> (!successful_rules_.empty()) {</div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span>&#160; <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>&amp; rule : successful_rules_) {</div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span>&#160; <span class="keywordflow">if</span> (rule.second == 1) {</div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>&#160; <a class="code" href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a>(logger_, <span class="stringliteral">&quot; - rule &#39;&quot;</span>, rule.first, <span class="stringliteral">&quot;&#39; was applied 1 time&quot;</span>);</div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>&#160; <a class="code" href="util_2logging_8h.html#a5f67b653dd99ddbe5e3367e3b4b7b532">SOLVER_LOG</a>(logger_, <span class="stringliteral">&quot; - rule &#39;&quot;</span>, rule.first, <span class="stringliteral">&quot;&#39; was applied &quot;</span>,</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span>&#160; rule.second, <span class="stringliteral">&quot; times&quot;</span>);</div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span>&#160; }</div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>&#160; }</div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>&#160; }</div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span>&#160;}</div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span>&#160;</div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span>&#160;<span class="comment">// ----- Substitution support -----</span></div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span>&#160;</div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span>&#160;<span class="keywordtype">void</span> Presolver::AddVariableSubstitution(<a class="code" href="structoperations__research_1_1fz_1_1_variable.html">Variable</a>* from, <a class="code" href="structoperations__research_1_1fz_1_1_variable.html">Variable</a>* to) {</div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span>&#160; <a class="code" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(from != <span class="keyword">nullptr</span>);</div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>&#160; <a class="code" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(to != <span class="keyword">nullptr</span>);</div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span>&#160; <span class="comment">// Apply the substitutions, if any.</span></div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span>&#160; from = FindRepresentativeOfVar(from);</div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span>&#160; to = FindRepresentativeOfVar(to);</div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>&#160; <span class="keywordflow">if</span> (to-&gt;<a class="code" href="structoperations__research_1_1fz_1_1_variable.html#a213942fe4cf3ce5da598bb2971452f95">temporary</a>) {</div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span>&#160; <span class="comment">// Let&#39;s switch to keep a non temporary as representative.</span></div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span>&#160; <a class="code" href="structoperations__research_1_1fz_1_1_variable.html">Variable</a>* tmp = to;</div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span>&#160; to = from;</div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span>&#160; from = tmp;</div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>&#160; }</div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>&#160; <span class="keywordflow">if</span> (from != to) {</div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>&#160; <a class="code" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(to-&gt;<a class="code" href="structoperations__research_1_1fz_1_1_variable.html#adf7f726f054afa7f0aa51cc7e1748f3b">Merge</a>(from-&gt;<a class="code" href="structoperations__research_1_1fz_1_1_variable.html#a9b45b3e13bd9167aab02e17e08916231">name</a>, from-&gt;<a class="code" href="structoperations__research_1_1fz_1_1_variable.html#a1f1a69f8d8b037b72c2160ed12b3ef51">domain</a>, from-&gt;<a class="code" href="structoperations__research_1_1fz_1_1_variable.html#a213942fe4cf3ce5da598bb2971452f95">temporary</a>));</div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>&#160; from-&gt;<a class="code" href="structoperations__research_1_1fz_1_1_variable.html#a03c996f9fcf0e10baeb3e700be0c409a">active</a> = <span class="keyword">false</span>;</div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span>&#160; var_representative_map_[from] = to;</div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span>&#160; var_representative_vector_.push_back(from);</div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span>&#160; }</div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span>&#160;}</div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span>&#160;</div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span>&#160;Variable* Presolver::FindRepresentativeOfVar(Variable* <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) {</div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span>&#160; <span class="keywordflow">if</span> (<a class="code" 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 name="l00494"></a><span class="lineno"> 494</span>&#160; Variable* start_var = <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>;</div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span>&#160; <span class="comment">// First loop: find the top parent.</span></div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>&#160; <span class="keywordflow">for</span> (;;) {</div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span>&#160; Variable* parent = <a class="code" href="namespacegtl.html#abc18f60961e36340e64e428827c0e38e">gtl::FindWithDefault</a>(var_representative_map_, <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>&#160; <span class="keywordflow">if</span> (parent == <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) <span class="keywordflow">break</span>;</div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>&#160; <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a> = parent;</div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span>&#160; }</div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span>&#160; <span class="comment">// Second loop: attach all the path to the top parent.</span></div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span>&#160; <span class="keywordflow">while</span> (start_var != <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>) {</div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span>&#160; Variable* <span class="keyword">const</span> parent = var_representative_map_[start_var];</div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span>&#160; var_representative_map_[start_var] = <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>;</div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span>&#160; start_var = parent;</div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span>&#160; }</div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span>&#160; <span class="keywordflow">return</span> <a class="code" href="namespacegtl.html#abc18f60961e36340e64e428827c0e38e">gtl::FindWithDefault</a>(var_representative_map_, <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>, <a class="code" href="expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465">var</a>);</div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span>&#160;}</div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span>&#160;</div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span>&#160;<span class="keywordtype">void</span> Presolver::SubstituteEverywhere(Model* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span>&#160; <span class="comment">// Rewrite the constraints.</span></div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span>&#160; <span class="keywordflow">for</span> (Constraint* <span class="keyword">const</span> <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> : <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>-&gt;constraints()) {</div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a> != <span class="keyword">nullptr</span> &amp;&amp; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;active) {</div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments.size(); ++i) {</div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span>&#160; Argument&amp; argument = <a class="code" href="demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695">ct</a>-&gt;arguments[i];</div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span>&#160; <span class="keywordflow">switch</span> (argument.type) {</div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span>&#160; <span class="keywordflow">case</span> <a class="code" href="structoperations__research_1_1fz_1_1_argument.html#a1d1cfd8ffb84e947f82999c682b666a7a1617d4efaac07978f3cf0d396bb4831c">Argument::VAR_REF</a>:</div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span>&#160; <span class="keywordflow">case</span> <a class="code" href="structoperations__research_1_1fz_1_1_argument.html#a1d1cfd8ffb84e947f82999c682b666a7ac1636609a56ee54ea3cd71a1f645a052">Argument::VAR_REF_ARRAY</a>: {</div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; argument.variables.size(); ++i) {</div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span>&#160; Variable* <span class="keyword">const</span> old_var = argument.variables[i];</div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span>&#160; Variable* <span class="keyword">const</span> new_var = FindRepresentativeOfVar(old_var);</div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span>&#160; <span class="keywordflow">if</span> (new_var != old_var) {</div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span>&#160; argument.variables[i] = new_var;</div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span>&#160; }</div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span>&#160; }</div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span>&#160; <span class="keywordflow">break</span>;</div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span>&#160; }</div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span>&#160; <span class="keywordflow">default</span>: {</div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span>&#160; }</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span>&#160; }</div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span>&#160; }</div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span>&#160; }</div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span>&#160; }</div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span>&#160; <span class="comment">// Rewrite the search.</span></div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span>&#160; <span class="keywordflow">for</span> (Annotation* <span class="keyword">const</span> ann : <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>-&gt;mutable_search_annotations()) {</div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span>&#160; SubstituteAnnotation(ann);</div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span>&#160; }</div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span>&#160; <span class="comment">// Rewrite the output.</span></div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span>&#160; <span class="keywordflow">for</span> (SolutionOutputSpecs* <span class="keyword">const</span> output : <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>-&gt;mutable_output()) {</div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span>&#160; output-&gt;variable = FindRepresentativeOfVar(output-&gt;variable);</div><div class="line"><a name="l00541"></a><span class="lineno"> 541</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; output-&gt;flat_variables.size(); ++i) {</div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span>&#160; output-&gt;flat_variables[i] =</div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span>&#160; FindRepresentativeOfVar(output-&gt;flat_variables[i]);</div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span>&#160; }</div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span>&#160; }</div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span>&#160; <span class="comment">// Do not forget to merge domain that could have evolved asynchronously</span></div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span>&#160; <span class="comment">// during presolve.</span></div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span>&#160; <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>&amp; iter : var_representative_map_) {</div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span>&#160; iter.second-&gt;domain.IntersectWithDomain(iter.first-&gt;domain);</div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span>&#160; }</div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span>&#160;</div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span>&#160; <span class="comment">// Change the objective variable.</span></div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span>&#160; Variable* <span class="keyword">const</span> current_objective = <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>-&gt;objective();</div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span>&#160; <span class="keywordflow">if</span> (current_objective == <span class="keyword">nullptr</span>) <span class="keywordflow">return</span>;</div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span>&#160; Variable* <span class="keyword">const</span> new_objective = FindRepresentativeOfVar(current_objective);</div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span>&#160; <span class="keywordflow">if</span> (new_objective != current_objective) {</div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span>&#160; <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>-&gt;SetObjective(new_objective);</div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span>&#160; }</div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span>&#160;}</div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span>&#160;</div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span>&#160;<span class="keywordtype">void</span> Presolver::SubstituteAnnotation(Annotation* ann) {</div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span>&#160; <span class="comment">// TODO(user): Remove recursion.</span></div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span>&#160; <span class="keywordflow">switch</span> (ann-&gt;type) {</div><div class="line"><a name="l00564"></a><span class="lineno"> 564</span>&#160; <span class="keywordflow">case</span> <a class="code" href="structoperations__research_1_1fz_1_1_annotation.html#a1d1cfd8ffb84e947f82999c682b666a7ae832fcf956a32fd8766a7a99a9eb49f2">Annotation::ANNOTATION_LIST</a>:</div><div class="line"><a name="l00565"></a><span class="lineno"> 565</span>&#160; <span class="keywordflow">case</span> <a class="code" href="structoperations__research_1_1fz_1_1_annotation.html#a1d1cfd8ffb84e947f82999c682b666a7a026071c79ad175ff5edb80a307ed2e1d">Annotation::FUNCTION_CALL</a>: {</div><div class="line"><a name="l00566"></a><span class="lineno"> 566</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; ann-&gt;annotations.size(); ++i) {</div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span>&#160; SubstituteAnnotation(&amp;ann-&gt;annotations[i]);</div><div class="line"><a name="l00568"></a><span class="lineno"> 568</span>&#160; }</div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span>&#160; <span class="keywordflow">break</span>;</div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span>&#160; }</div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span>&#160; <span class="keywordflow">case</span> <a class="code" href="structoperations__research_1_1fz_1_1_annotation.html#a1d1cfd8ffb84e947f82999c682b666a7a1617d4efaac07978f3cf0d396bb4831c">Annotation::VAR_REF</a>:</div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span>&#160; <span class="keywordflow">case</span> <a class="code" href="structoperations__research_1_1fz_1_1_annotation.html#a1d1cfd8ffb84e947f82999c682b666a7ac1636609a56ee54ea3cd71a1f645a052">Annotation::VAR_REF_ARRAY</a>: {</div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; ann-&gt;variables.size(); ++i) {</div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span>&#160; ann-&gt;variables[i] = FindRepresentativeOfVar(ann-&gt;variables[i]);</div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span>&#160; }</div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span>&#160; <span class="keywordflow">break</span>;</div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span>&#160; }</div><div class="line"><a name="l00578"></a><span class="lineno"> 578</span>&#160; <span class="keywordflow">default</span>: {</div><div class="line"><a name="l00579"></a><span class="lineno"> 579</span>&#160; }</div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span>&#160; }</div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span>&#160;}</div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span>&#160;</div><div class="line"><a name="l00583"></a><span class="lineno"> 583</span>&#160;} <span class="comment">// namespace fz</span></div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span>&#160;} <span class="comment">// namespace operations_research</span></div><div class="ttc" id="base_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>
<div class="ttc" id="flatzinc_2model_8h_html"><div class="ttname"><a href="flatzinc_2model_8h.html">model.h</a></div></div>
<div class="ttc" id="presolve_8h_html"><div class="ttname"><a href="presolve_8h.html">presolve.h</a></div></div>
<div class="ttc" id="vector__map_8h_html"><div class="ttname"><a href="vector__map_8h.html">vector_map.h</a></div></div>
<div class="ttc" id="util_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>
<div class="ttc" id="structoperations__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="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00156">flatzinc/model.h:156</a></div></div>
<div class="ttc" id="namespaceoperations__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&lt; T &gt; &amp;values)</div><div class="ttdef"><b>Definition:</b> <a href="constraint__solveri_8h_source.html#l02856">constraint_solveri.h:2856</a></div></div>
<div class="ttc" id="structoperations__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="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00268">flatzinc/model.h:268</a></div></div>
<div class="ttc" id="structoperations__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#l00218">flatzinc/model.h:218</a></div></div>
<div class="ttc" id="presolve_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, &quot;Interpret floats as integers in all variables and constraints.&quot;)</div></div>
<div class="ttc" id="gurobi__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>
<div class="ttc" id="structoperations__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="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00262">flatzinc/model.h:262</a></div></div>
<div class="ttc" id="classoperations__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>
<div class="ttc" id="structoperations__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="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00264">flatzinc/model.h:264</a></div></div>
<div class="ttc" id="cliques_8h_html"><div class="ttname"><a href="cliques_8h.html">cliques.h</a></div></div>
<div class="ttc" id="map__util_8h_html"><div class="ttname"><a href="map__util_8h.html">map_util.h</a></div></div>
<div class="ttc" id="structoperations__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#l00136">flatzinc/model.h:136</a></div></div>
<div class="ttc" id="structoperations__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="model_8cc_source.html#l00490">model.cc:490</a></div></div>
<div class="ttc" id="structoperations__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="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00267">flatzinc/model.h:267</a></div></div>
<div class="ttc" id="presolve_8cc_html_ae7d5fdf798faf3ed78c1dff230a0e384"><div class="ttname"><a href="presolve_8cc.html#ae7d5fdf798faf3ed78c1dff230a0e384">operations_research::fz::@163::PresolveState</a></div><div class="ttdeci">PresolveState</div><div class="ttdef"><b>Definition:</b> <a href="presolve_8cc_source.html#l00036">presolve.cc:36</a></div></div>
<div class="ttc" id="structoperations__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="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00163">flatzinc/model.h:163</a></div></div>
<div class="ttc" id="structoperations__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#l00140">flatzinc/model.h:140</a></div></div>
<div class="ttc" id="pack_8cc_html_a750b5d744c39a06bfb13e6eb010e35d0"><div class="ttname"><a href="pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0">index</a></div><div class="ttdeci">int index</div><div class="ttdef"><b>Definition:</b> <a href="pack_8cc_source.html#l00509">pack.cc:509</a></div></div>
<div class="ttc" id="structoperations__research_1_1fz_1_1_variable_html_adf7f726f054afa7f0aa51cc7e1748f3b"><div class="ttname"><a href="structoperations__research_1_1fz_1_1_variable.html#adf7f726f054afa7f0aa51cc7e1748f3b">operations_research::fz::Variable::Merge</a></div><div class="ttdeci">bool Merge(const std::string &amp;other_name, const Domain &amp;other_domain, bool other_temporary)</div><div class="ttdef"><b>Definition:</b> <a href="model_8cc_source.html#l00772">model.cc:772</a></div></div>
<div class="ttc" id="saturated__arithmetic_8h_html"><div class="ttname"><a href="saturated__arithmetic_8h.html">saturated_arithmetic.h</a></div></div>
<div class="ttc" id="base_2logging_8h_html_a7c0ce053b28d53aa4eaf3eb7fb71663b"><div class="ttname"><a href="base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b">CHECK_EQ</a></div><div class="ttdeci">#define CHECK_EQ(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00702">base/logging.h:702</a></div></div>
<div class="ttc" id="structoperations__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&lt; Variable * &gt; vars)</div><div class="ttdef"><b>Definition:</b> <a href="model_8cc_source.html#l00526">model.cc:526</a></div></div>
<div class="ttc" id="structoperations__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="ttdef"><b>Definition:</b> <a href="flatzinc_2model_8h_source.html#l00164">flatzinc/model.h:164</a></div></div>
<div class="ttc" id="namespacegtl_html_abc18f60961e36340e64e428827c0e38e"><div class="ttname"><a href="namespacegtl.html#abc18f60961e36340e64e428827c0e38e">gtl::FindWithDefault</a></div><div class="ttdeci">const Collection::value_type::second_type &amp; FindWithDefault(const Collection &amp;collection, const typename Collection::value_type::first_type &amp;key, const typename Collection::value_type::second_type &amp;value)</div><div class="ttdef"><b>Definition:</b> <a href="map__util_8h_source.html#l00029">map_util.h:29</a></div></div>
<div class="ttc" id="base_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#l00890">base/logging.h:890</a></div></div>
<div class="ttc" id="structoperations__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="model_8cc_source.html#l00519">model.cc:519</a></div></div>
<div class="ttc" id="structoperations__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#l00144">flatzinc/model.h:144</a></div></div>
<div class="ttc" id="namespaceoperations__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>
<div class="ttc" id="expr__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>
<div class="ttc" id="structoperations__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&lt; int64_t &gt; values)</div><div class="ttdef"><b>Definition:</b> <a href="model_8cc_source.html#l00505">model.cc:505</a></div></div>
<div class="ttc" id="structoperations__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#l00119">flatzinc/model.h:119</a></div></div>
<div class="ttc" id="demon__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>
<div class="ttc" id="structoperations__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#l00135">flatzinc/model.h:135</a></div></div>
<div class="ttc" id="demon__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>
<div class="ttc" id="classoperations__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#l00337">flatzinc/model.h:337</a></div></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<!-- HTML footer for doxygen 1.8.18-->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
<ul>
<li class="navelem"><a class="el" href="dir_a7cc1eeded8f693d0da6c729bc88c45a.html">ortools</a></li><li class="navelem"><a class="el" href="dir_92d538196d04323bb571488ea744da84.html">flatzinc</a></li><li class="navelem"><a class="el" href="presolve_8cc.html">presolve.cc</a></li>
<li class="footer">Generated by
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.15 </li>
</ul>
</div>
</body>
</html>
Reference in New Issue View Git Blame Copy Permalink