Opened 3 years ago

Last modified 4 months ago

#169 new defect

different objective value for equivalent models

Reported by: swe_vie Owned by: tkr
Priority: major Component: Cbc
Version: 2.9.2 Keywords:
Cc:

Description

Hi,

I have two IP models that should have the same optimal objective value judging from the way they are created, and in fact another MILP solver gives me an objective of -176.0 for both. Cbc (used through NEOS and also through google's or-tools' JAVA interface) gives me -175.0 and -176.0 respectively.

Is there any suggestion on what I am missing here? I attach mps and lp files for both models.

Thanks, Sven

Attachments (1)

CbcMPSfiles.zip (46.9 KB) - added by swe_vie 3 years ago.

Download all attachments as: .zip

Change History (2)

Changed 3 years ago by swe_vie

comment:1 Changed 4 months ago by andrewwald

Hi Sven,

I've copied this issue to the project repository here: https://github.com/coin-or/Cbc/issues/41

Thanks, Andrew

Note: See TracTickets for help on using tickets.