seg fault when solving empty problem in OsiSym

[svigerske]

Issue created by migration from Trac.

Original creator: kishshen

Original creation time: 2006-09-01 17:36:20

Assignee: @tkralphs

Version:

I have been developing an interface for our Constraint Logic Programming language ECLiPSe
to COIN/OSI. I am now trying it out with Symphony as the MIP solver (compiled with CLP as the
linear solver. I downloaded the source about a month ago). I am using Symphony through the
OsiSymSolverInterface.

I am testing the system with some unit tests, and I get a segmentation fault when I try to solve
an empty problem, i.e. a problem with no objective function, no variables or constraints. I get
the following warning when the problem is set up:

sym_load_problem_user():The given problem is empty or incorrectproblem description!

and then when I call OsiSymSolverInterface's initialSolve() on the problem, I get a segmentation
violation.

===

I also get a segmentation violation when trying to solve a problem that has some variables
(columns), but no constraints.

[svigerske]

Comment by @tkralphs created at 2006-09-04 18:34:39

Changing assignee from @tkralphs to menal.

[svigerske]

Comment by menal created at 2006-09-06 23:57:33

Changing status from new to assigned.

[svigerske]

Comment by @tkralphs created at 2006-09-25 22:00:37

Version: Version: 5.1

[svigerske]

Comment by @tkralphs created at 2006-12-11 18:38:36

Version: Version changed from 5.1 to stable/5.1 (SVN)

[svigerske]

Comment by tom1 created at 2008-11-25 12:40:43

problem, i.e. a problem with no objective function, no variables or constraints. I get the following warning when the problem is set