"sym_get_col_solution(): There is no solution!" error despite outputting the optimal solution

[svigerske]

Issue created by migration from Trac.

Original creator: anh509

Original creation time: 2014-11-03 05:51:26

Assignee: @tkralphs

Version: trunk (SVN)

SYMPHONY is built with Cplex as the lp solver. When the optimal solution has all zero columns, setting the verbosity option to 5 (no other parameters), I get:

Solution Found: Node 0, Level 0
Solution Cost: 0.0000000000
+++++++++++++++++++++++++++++++++++++++++++++++++++
All columns are zero in the solution!
+++++++++++++++++++++++++++++++++++++++++++++++++++
sym_get_col_solution(): There is no solution!

Symphony is configured with the following script.

../configure --enable-debug --enable-sensitivity-analysis --with-cplex-lib=-L/usr/local/CPLEX_Studio_125/cplex/lib/x86-64_sles10_4.1/static_pic/ -l
cplex -lpthread -lm --with-cplex-incdir=/usr/local/CPLEX_Studio_125/cplex/include/ilcplex --with-lp-solver=cplex

[svigerske]

Attachment origMaster.MPS by anh509 created at 2014-11-03 05:53:06