<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#404040;
text-decoration:none none;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#404040;
text-decoration:none none;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin-top:0cm;
margin-right:0cm;
margin-bottom:0cm;
margin-left:36.0pt;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.E-MailFormatvorlage19
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 2.0cm 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="DE" link="#404040" vlink="#404040">
<div class="WordSection1">
<p class="MsoNormal"><span lang="EN-US">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US" style="color:black">I am optimizing a model via pyscipopt.
</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US" style="color:black">Right after</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US" style="font-family:Consolas;color:black">self.model.optimize()</span><span lang="EN-US" style="font-family:Consolas"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US" style="color:black">I want to
</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US" style="font-family:Consolas;color:black">objective_value = self.model.getObjVal()</span><span lang="EN-US" style="font-family:Consolas"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US" style="color:black">but (in some cases) I get the following warning:</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US" style="font-family:Consolas;color:black">“Warning: method cannot be called before problem is solved”</span><span lang="EN-US" style="font-family:Consolas"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US" style="color:black">(because of:
</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US" style="font-family:Consolas;color:black">if not self.getStage() >= SCIP_STAGE_SOLVING: )</span><span lang="EN-US" style="font-family:Consolas"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US" style="color:black">But for me it looks like, there should be an objective value (=primal bound) existent at this time…</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US" style="color:black">(See below for the relevant log)</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US" style="color:black">Thanks,<br>
Gerwin</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white;text-autospace:none"><span lang="EN-US" style="color:black">--------------</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"># SCIP version 6.0.1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"># solving stops, if the relative gap = |primal - dual|/MIN(|dual|,|primal|) is below the given value<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"># [type: real, advanced: FALSE, range: [0,1.79769313486232e+308], default: 0]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">limits/gap = 0.0001<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"># maximal number of presolving rounds the presolver participates in (-1: no limit)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"># [type: int, advanced: FALSE, range: [-1,2147483647], default: -1]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">presolving/symbreak/maxrounds = 0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">wrote parameter settings to file param.set<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">solution violates original bounds of variable <x1> [0,0] solution value <100000><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">solution violates original bounds of variable <x2> [0,0] solution value <1><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">solution violates original bounds of variable <x3> [0,0] solution value <1><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">1/4 feasible solution given by solution candidate storage, new primal bound 8.503167e+02<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">presolving:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(round 1, fast) 601 del vars, 2619 del conss, 0 add conss, 2807 chg bounds, 0 chg sides, 0 chg coeffs, 0 upgd conss, 0 impls, 0 clqs<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(round 2, fast) 3282 del vars, 2619 del conss, 0 add conss, 2946 chg bounds, 0 chg sides, 0 chg coeffs, 0 upgd conss, 0 impls, 1 clqs<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(round 3, fast) 3287 del vars, 2624 del conss, 0 add conss, 2948 chg bounds, 0 chg sides, 0 chg coeffs, 0 upgd conss, 0 impls, 2 clqs<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(round 4, fast) 3289 del vars, 2722 del conss, 0 add conss, 2948 chg bounds, 0 chg sides, 0 chg coeffs, 0 upgd conss, 0 impls, 2 clqs<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(round 5, fast) 3396 del vars, 2722 del conss, 0 add conss, 2948 chg bounds, 0 chg sides, 0 chg coeffs, 0 upgd conss, 0 impls, 2 clqs<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(round 6, exhaustive) 3396 del vars, 2777 del conss, 0 add conss, 2948 chg bounds, 6 chg sides, 0 chg coeffs, 0 upgd conss, 0 impls, 2 clqs<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(round 7, fast) 3401 del vars, 2779 del conss, 0 add conss, 2948 chg bounds, 6 chg sides, 0 chg coeffs, 0 upgd conss, 0 impls, 0 clqs<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(round 8, fast) 3404 del vars, 2779 del conss, 0 add conss, 2951 chg bounds, 6 chg sides, 0 chg coeffs, 0 upgd conss, 0 impls, 1 clqs<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">presolving (8 rounds: 8 fast, 1 medium, 1 exhaustive):<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">3404 deleted vars, 2779 deleted constraints, 0 added constraints, 2951 tightened bounds, 0 added holes, 6 changed sides, 0 changed coefficients<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">0 implications, 1 cliques<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">presolving was interrupted.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Presolving Time: 0.00<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">SCIP Status : solving was interrupted [gap limit reached]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Solving Time (sec) : 0.00<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Solving Nodes : 0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Primal Bound : +8.50316660000000e+02 (2 solutions)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="color:black;mso-fareast-language:DE"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
</body>
</html>