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Dear Demetrio,<br>
<br>
do you have created and added a constraint belonging to you
constraint handler? If you did not add such a constraint then SCIP
(of course) thinks that there is nothing to do in the
SCIP_DECL_CONSSEPALP callback since there is no constraint which can
be handled by your constraint handler.<br>
<br>
If this is your current problem then have a look at the TSP example
of SCIP. There is a constraint handler which handles the subtour
elimination constraints. To really exclude subtours one has to add a
constraint via the SCIPcreateConsSubtour method in ReaderTSP.cpp.
After this call there is a constraint belonging to the constraint
handler and then it is possible to do several things in the
SCIP_DECL_CONSSEPALP callback.<br>
<br>
Best regards,<br>
Benny<br>
<br>
<div class="moz-cite-prefix">Am 31.10.2014 um 15:07 schrieb Demetrio
Laganą:<br>
</div>
<blockquote
cite="mid:CA+n5bEJT5+9ywCKNxp4TAVPnqRnqFsK828U6+a8dk4ch2XpMaw@mail.gmail.com"
type="cite">
<div dir="ltr"><span
style="font-family:arial,sans-serif;font-size:13px">Dear SCIP
mailing list,</span>
<div style="font-family:arial,sans-serif;font-size:13px">I have
a problem when using ObjConshdlr. More precisely, I have
implemented the virtual methods from this class and included
them in the main.cpp of my NetBeans project through
SCIPincludeObjConshdlr. It seems to me that something does not
work, because during the flow execution of the code only the
constructor of this class is run without printing any message
included
into SCIP_DECL_CONSSEPALP(ConshdlrMaxTime::scip_sepalp)
function. Can you help me?</div>
<div style="font-family:arial,sans-serif;font-size:13px">Thanks
in advance</div>
<div style="font-family:arial,sans-serif;font-size:13px">Best
regards</div>
<div style="font-family:arial,sans-serif;font-size:13px">Demetrio
Laganą</div>
</div>
<br>
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<br>
<pre wrap="">_______________________________________________
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<a class="moz-txt-link-freetext" href="http://listserv.zib.de/mailman/listinfo/scip">http://listserv.zib.de/mailman/listinfo/scip</a>
</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
______________________________
Benjamin Müller
Zuse Institute Berlin
Takustr. 7, 14195 Berlin
<a class="moz-txt-link-abbreviated" href="mailto:benjamin.mueller@zib.de">benjamin.mueller@zib.de</a>
+49 30 841 85-195</pre>
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