I'm trying to solve the problem in mkt.mps. If I solve it using CBC on the command line, it takes about 2 minutes and it finds a solution with value -170 (see cbc-output.txt).
However, if I solve it using PuLP as in example.py, it terminates immediately and PuLP claims to have found a solution of value 0. See pulp-output.txt.
(All files I refer to are attached here)
I'm trying to solve the problem in mkt.mps. If I solve it using CBC on the command line, it takes about 2 minutes and it finds a solution with value -170 (see cbc-output.txt).
However, if I solve it using PuLP as in example.py, it terminates immediately and PuLP claims to have found a solution of value 0. See pulp-output.txt.
Could it be a problem with reading the MPS file? I found issue https://github.com/coin-or/pulp/issues/459, but I have no way of telling whether it's the same bug.
As you can see in the logs, PuLP is using CBC version 2.10.5, and on the command line I used 2.10.3. The PuLP version I'm using is 2.6.0.
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What operating system are you using?
I'm using python version:
I installed PuLP via:
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