[SCIP] assertion failed on variable's probindex

[Horváth Markó]

Hi there,

my problem is still present. I ask again, if I get an answer now.

Best regards,
Marko

2021. 08. 31. 13:11 keltezéssel, Horváth Markó írta:
>
> Hi there,
>
> I'm working on a branch-and-price approach using SCIP Optimitation 
> Suite 7.0.3 on windows (and on linux, as well). After the problem is 
> solved, in method SCIPfree (more precisely, method varFree) I get the 
> following problem:
>
> *Assertion failed: (*var)->probindex == -1, file <my path>\scip\var.c, 
> line 2682*
>
> since the value of probindex is 16. Can you help me to fix this issue? 
> As I see, the problem already occures when the first priced variable 
> is going to be freed
>
> I have already checked previous reports about this problem 
> (http://listserv.zib.de/pipermail/scip/2017-April/003078.html). 
> Briefly stated, I use the following steps to create and add priced 
> variables to the problem (actually, initial variables are added to the 
> problem in the same way):
>
> ...
> SCIPcreateObjVar( scip, &var, varname, 0.0, 1.0, obj, 
> SCIP_VARTYPE_BINARY, initial, FALSE, vardata, TRUE )
> if( initial )
>   SCIP_CALL( SCIPaddVar( scip, var ) );
> else
>   SCIP_CALL( SCIPaddPricedVar( scip, var, 1.0 ) );
> SCIPchgVarUbLazy( scip, var, 1.0 )
> SCIPaddCoefLinear(...)
> ...
> SCIPaddCoefLinear(...)
> SCIPreleaseVar( scip, &var )
>
> (Note that assertion (*var)->nuses == 0 does not failed).
>
> Best Regards,
> Marko
>
>
> _______________________________________________
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> https://listserv.zib.de/mailman/listinfo/scip

-- 
Markó HORVÁTH PhD,
research fellow
-------------------------------------------------------------
Research Laboratory on Engineering & Management Intelligence,
Institute for Computer Science and Control
  H-1111 Budapest, Kende u. 13-17.
  Room : K318
  Phone: +36 1 279 7164

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