[Scip] scip reports optimal solution along with violated constraints

Martin Bergner mbergner at mathematik.tu-darmstadt.de
Wed Mar 10 09:07:54 MET 2010


Hello Stefan,
> could you please turn off the heuristic trivial and check if this helps.
> SCIP_CALL( SCIPsetIntParam(scip, "heuristics/trivial/freq", -1) );

This is interesting, the output is now:

 time | node  | left  |LP iter|LP it/n| mem |mdpt |frac |vars |cons |cols |rows |cuts |confs|strbr|  dualbound   | primalbound  |  gap
* 0.3s|     1 |     0 |     0 |     - | 200k|   0 |   - |  57 |  14 |  57 |   0 |   0 |   0 |   0 | 0.000000e+00 | 0.000000e+00 |   0.00%

Note that cols is correct, rows is still 0. Any other heuristic which could be the culprit?

Regards,
Martin



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