[Scip] B&price

Aao Du aaoduu at gmail.com
Mon Apr 13 03:51:32 CEST 2015


Hi Jacob,

Thanks for the reply. I actually fixed that problem.

However, I have a quite basic question. How can I get the value of integer
variables after being solved. I was using SCIPgetsolval, but I realized it
is not giving integer values., and I could not figure out how to do it!

Thanks,
Emily



On Thu, Apr 9, 2015 at 3:42 AM, Jakob Witzig <witzig at zib.de> wrote:

> Hi Emily,
>
> On 04/08/15 23:02, Aao Du wrote:
>
>>
>> src/scip/heur_coefdiving.c:724: heurExecCoefdiving: Assertion `cutoff ||
>> (lpsolstat != SCIP_LPSOLSTAT_OBJLIMIT && lpsolstat !=
>> SCIP_LPSOLSTAT_INFEASIBLE && (lpsolstat != SCIP_LPSOLSTAT_OPTIMAL ||
>> SCIPisLT(scip, SCIPgetLPObjval(scip), SCIPgetCutoffbound(scip))))' failed.
>> Aborted (core dumped)
>>
> Which of the terms violates the assertion?
>
>  The algorithm is working for small instances, but is giving this error
>> for larger.
>>
> I don't think there is a relation between the size of the instances and
> this error ;-)
>
> Best,
> Jakob
>
> --
> Jakob Witzig
>
> Konrad-Zuse-Zentrum für
> Informationstechnik Berlin (ZIB)
>
> Division Mathematical Optimization and Scientific Information
> Research Group Mathematical Optimization Methods
>
> Takustrasse 7
> 14195 Berlin
>
> Tel. : +49 (0)30 84185-416
> Fax  : +49 (0)30 84185-269
> email: witzig at zib.de
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