[Scip] Error reagrding SoPlex when trying to solve a problem

Stephan Bieband bieband at ims.uni-hannover.de
Wed Mar 16 15:38:12 MET 2011


Dear SCIP mailing list users,

I'm a new user to SCIP as well as to this mailing list and - after 
successfully solving some easier problems with SCIP to get familiar to 
how the API works - came across a problem that seems to be a bit more of 
a basic nature.

When running SCIPsolve after having created a problem and added 
variables and constraints to it I get the following error(s) after the 
presolving phase:

[src/scip/lpi_spx.cpp:3100] ERROR: SCIPlpiGetPrimalRay() not supported
	by SoPlex
[src/scip/lp.c:13515] ERROR: Error <-6> in function call
[src/scip/lp.c:12257] ERROR: Error <-6> in function call
[src/scip/solve.c:830] ERROR: Error <-6> in function call
[src/scip/solve.c:1962] ERROR: Error <-6> in function call
[src/scip/solve.c:2680] ERROR: Error <-6> in function call
[src/scip/solve.c:3297] ERROR: Error <-6> in function call
[src/scip/scip.c:6829] ERROR: Error <-6> in function call
[ScipTest.cpp:531] ERROR: Error <-6> in function call

I really have no idea what might cause of this error. Any help with this 
would be greatly appreciated!
Please let me know if you need any further information and especially 
which informaton you need.
I should add that I'm a student of electrical engineering and not a 
mathematician, so I'm not familiar with the theory behind SCIP or SoPlex.

Best regards,
Stephan


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