Opened 8 months ago

Closed 7 weeks ago

#186 closed defect (migrated)

Feasible problem reported as infeasible

Reported by: dindy Owned by: tkr
Priority: major Component: Cbc
Version: 2.9.8 Keywords:
Cc:

Description

Hello,

the attached problem is reported as infeasible by CBC 2.9.9, even though it is feasible. Command line used is simply:

cbc -import inf.lp -solve -quit

If I set the ratiogap to an high value, say 0.5, a (suboptimal) feasible solution is found.

CBC has been compiled with mingw32 but I tested also with the supplied MSVC precompiled binaries to be sure it isn't just some compilation issue.

Hope it helps, and thanks for this excellent software.

Bye,

Denis Sbragion

Attachments (1)

inf.zip (7.8 MB) - added by dindy 8 months ago.
Sample problem

Change History (2)

Changed 8 months ago by dindy

Sample problem

comment:1 Changed 7 weeks ago by stefan

  • Resolution set to migrated
  • Status changed from new to closed

This ticket has been migrated to GitHub and will be resolved there: https://github.com/coin-or/Cbc/issues/186

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