[Cbc-tickets] [COIN-OR Branch-and-Cut MIP Solver] #115: CBC 2.6.0 crashing

COIN-OR Branch-and-Cut MIP Solver coin-trac at coin-or.org
Fri Jul 8 08:59:54 EDT 2011


#115: CBC 2.6.0 crashing
-------------------+--------------------------------------------------------
Reporter:  dindy   |       Owner:  tkr
    Type:  defect  |      Status:  new
Priority:  major   |   Component:  Cbc
 Version:  2.6.0   |    Keywords:     
-------------------+--------------------------------------------------------
 Hello,

 I have a model with wich CBC 2.6.0 crashes, the system doesn't let me
 attach it to the ticket. I'm using the precompiled CBC version available
 from CoinAll. I'm not able to compile a newer version so I don't know if
 this has been already fixed in the latest version.

 The command line used is:

 cbc -import crash.lp -solve -solu r.txt -quit

 The CBC log up to the crash is:

 ----------
 Cbc version 2.6.0, build Nov  7 2010
 command line - cbc -import crash.lp -solve -solu r.txt -quit (default
 strategy 1)
 Continuous objective value is -0.0845723 - 0.08 seconds
 Cgl0003I 0 fixed, 0 tightened bounds, 14 strengthened rows, 0
 substitutions
 Cgl0004I processed model has 812 rows, 1088 columns (784 integer) and
 80015 elements
 Cbc0038I Pass   1: suminf.    0.10713 (2) obj. -0.0813099 iterations 218
 Cbc0038I Solution found of -0.0810757
 Cbc0038I Branch and bound needed to clear up 2 general integers
 ----------

 Just contact me back if you need the model or some further help.

 Bye,

-- 
Ticket URL: <https://projects.coin-or.org/Cbc/ticket/115>
COIN-OR Branch-and-Cut MIP Solver <http://projects.coin-or.org/Cbc>
An LP-based branch-and-cut MIP solver.



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