[Symphony-tickets] [SYMPHONY] #48: problems with infeasible problems

SYMPHONY coin-trac at coin-or.org
Wed Oct 4 03:50:08 EDT 2006


#48: problems with infeasible problems
---------------------+------------------------------------------------------
 Reporter:  asm4     |       Owner:  tkr
     Type:  defect   |      Status:  new
 Priority:  blocker  |   Milestone:     
Component:  Master   |     Version:  5.2
 Severity:  normal   |    Keywords:     
---------------------+------------------------------------------------------
 If the LP-relaxation of the given MIP is infeasible, SYMPHONY thinks its
 an computational instability (lp_genfunc.c). It dumps MPS file and says:

 ****************************************************
 * Terminated abnormally with error message -252    *
 * Now displaying stats and best solution found...  *
 ****************************************************

 It should say problem is infeasible.

 Its a blocker for me since i need to check a lot of infeasible problems.

-- 
Ticket URL: <https://projects.coin-or.org/SYMPHONY/ticket/48>
SYMPHONY <https://projects.coin-or.org/SYMPHONY>
A solver, callable library, and customizable framework for mixed-integer linear programs.


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