coin-or / python-mip

Python-MIP: collection of Python tools for the modeling and solution of Mixed-Integer Linear programs
Eclipse Public License 2.0
518 stars 92 forks source link

manual solution to an infeasible problem #156

Closed gt6989b closed 3 years ago

gt6989b commented 3 years ago

Dear all, I have had very good experience with python-mip but now hit a snag. I am attaching a .lp output file, which the solver is reporting infeasible, together with the solver output running on Linux. I have constructed a solution to this problem manually. I am pretty sure there must be a bug somewhere in my code but I cannot find it, unfortunately. Is there a way to check which of the constraints are being violated by an existing solution? Or get more information about what specifically drives the problem infeasible? I can post the solution here as well, please let me know if that would potentially help.

Thanks, Dima infeasible.zip

gt6989b commented 3 years ago

stupid mistake on my part, sorry for the trouble, closing.