[Coin-discuss] Two defects of CBC

Luigi Poderico lupoderi at tiscalinet.it
Wed Jan 30 09:35:50 EST 2008


Dear Coin members,

Attached you'll find two MPS' that cause some problems at CBC.

The test1-pulp_not_integer_solutions.zip is a MIP problem, but the CBC
solution has got some integer variables at not-integer value.
The test1-pulp-crash.mps.zip makes CBC to crash after a given amount of time.

I'm solving the two problems with "perturb off" and "log 3" option settings.
The CBC is the stable/2.0 from
https://projects.coin-or.org/svn/Cbc/stable/2.0/, compiled with the
Visual Studio 2005 express edition on WinXP professional.

I hope that this information will help you.

Best regards,
Luigi

-- 
www.poderico.it
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