> I'm trying to solve an MILP program with glpsol and i would like to > know what the following error means, please. > > OPTIMAL SOLUTION FOUND > integer optimization begins ... > + 224: mip = not found yet <= +inf (1;0) > + 441: >>>>> 5.484999986e+00 <= 2.000000039e+08 (18;1) > Assertion failed: q!=0 > Error detected in file glpspx02.c at line 1698 > Abandon
It is a rare bug in the dual simplex solver. Could you please output your mip with --wfreemps or --wglp option and post it to me? Thanks. You may try to bypass this bug by specifying --cbg or --cgr option. _______________________________________________ Bug-glpk mailing list [email protected] https://lists.gnu.org/mailman/listinfo/bug-glpk
