> I have a MIP defined that is not solving correctly because there is a > bound defined that is not being enforced. > > > I validated the bound is defined correctly. The constraint has an upper > bound of 0. Here is the "row" information after inserting the > constraint: > > > Row: 11 > Name: c2_2_1_B > Bound Type: 3 > LB: -1.7976931348623157E308 > UB: 0.0 > > > But the solution generates with a row value of 42. Here is the > corresponding row output after the solution: > > > Row: 11 > Name: c2_2_1_B > Val: 42.0 > > > Clearly the bound is violating the UB of 0 defined above. > > > I would be very appreciative of any suggestions. >
Please provide more detailed information. Not seeing your code it is difficult to say what is wrong. Did you reoptimize the mip after a row had been added? You may try to write your mip data in a text file and then solve it with glpsol to make sure than the mip solver finds correct solution; if not, please report. Thanks. Andrew Makhorin _______________________________________________ Help-glpk mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-glpk
