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Hey Kai Wei,<br>
<br>
I do not see how the model you described corresponds to the SCIP
output you sent us. Where are the 337 constraints coming from?<br>
I suppose there's something wrong in your own code.<br>
<br>
all the best<br>
Matthias<br>
<br>
<div class="moz-cite-prefix">On 03.11.2015 08:20, <a class="moz-txt-link-abbreviated" href="mailto:weikaimas@163.com">weikaimas@163.com</a>
wrote:<br>
</div>
<blockquote cite="mid:2015110315203400629521@163.com" type="cite">
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<div><span></span><br>
</div>
<div>
<blockquote cite="mid:2015110314504541431417@163.com"
type="cite">
<div>Hi, </div>
<div><span style="font-size: 10.5pt; line-height: 1.5;"> </span></div>
<div><span style="font-size: 10.5pt; line-height: 1.5;"> I
have a branch and price algorithm. I am facing a problem
when I set the initial solution.</span></div>
<div><span style="font-size: 10.5pt; line-height: 1.5;"><br>
</span></div>
<div>When I set the parameter to zero for each variable in
objective function, SCIP shows the primal bound is 30. </div>
<div><br>
</div>
<div>In my problem, the primal bound given by SCIP also 30
unit bigger than the real primal bound.</div>
<div><br>
</div>
<div>I don't know why this happens.</div>
<div>I attach the initial model and SCIP result in the
following.</div>
<div><br>
</div>
<div><span microsoft="" yahei="" ui'";="" font-size:=""
14px;="" color:="" rgb(0,="" 0,="" 0);=""
background-color:="" rgba(0,="" font-weight:="" normal;=""
font-style:="" normal;text-decoration:="" none;'=""
style="font-family: '';">\ENCODING=ISO-8859-1<br>
\Problem name: mymodel<br>
<br>
Minimize<br>
obj:<br>
Subject To<br>
Constraint0: x_1_1 = 30<br>
Constraint1: x_2_1 = 10<br>
Constraint2: x_3_1 = 30<br>
Constraint3: x_4_1 = 19<br>
Constraint4: x_5_1 = 17<br>
Constraint5: x_6_1 = 22<br>
Constraint6: x_7_1 = 28<br>
Constraint7: x_8_1 = 21<br>
Constraint8: x_9_1 = 27<br>
Constraint9: x_10_1 = 20<br>
Constraint10: x_11_1 = 10<br>
Constraint11: x_12_1 = 21<br>
Constraint12: x_13_1 = 14<br>
Constraint13: x_14_1 = 11<br>
Constraint14: x_15_1 = 28<br>
Constraint15: x_16_1 = 21<br>
Constraint16: x_17_1 = 21<br>
Constraint17: x_18_1 = 20<br>
Constraint18: x_19_1 = 16<br>
Constraint19: x_20_1 = 24<br>
Constraint20: - RgConstraint20 = 0<br>
Constraint21: - RgConstraint21 = 0<br>
Constraint22: - RgConstraint22 = 0<br>
Constraint23: - RgConstraint23 = 0<br>
Constraint24: - RgConstraint24 = 0<br>
Constraint25: - RgConstraint25 = 0<br>
Constraint26: - RgConstraint26 = 0<br>
Constraint27: - RgConstraint27 = 0<br>
Constraint28: - RgConstraint28 = 0</span></div>
<div><br>
</div>
<div><img src="cid:part1.05090801.06070708@zib.de"
style="max-width: 100%; height: auto !important;"
border="0"></div>
<div><span style="font-size: 10.5pt; line-height: 1.5;"><br>
</span></div>
<div><span style="font-size: 10.5pt; line-height: 1.5;">best
regard,</span></div>
<div><span style="font-size: 10.5pt; line-height: 1.5;"><br>
</span></div>
<div><span style="font-size: 10.5pt; line-height: 1.5;">Kai
Wei</span></div>
</blockquote>
</div>
<div>
<div><span style="font-size: 10.5pt; line-height: 1.5;"><br>
</span></div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
\__________________
Matthias Miltenberger
Zuse Institute Berlin
Takustr. 7, 14195 Berlin
<a class="moz-txt-link-abbreviated" href="http://www.zib.de/miltenberger">www.zib.de/miltenberger</a>
<a class="moz-txt-link-abbreviated" href="mailto:miltenberger@zib.de">miltenberger@zib.de</a>
+49 (30) 841 85-245</pre>
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