MIPLIB 2017 Infeas

blp-ic97

dual-infeasible

The instance

as published
Variables
9,845
Constraints
920
Nonzeros
111,347
Format
MPS, gzipped

Where it comes from

provenance

The source instance's LP relaxation is feasible with a bounded optimum. Removing the elements below makes the objective unbounded, and putting any one of them back makes it bounded again.

Bounds dropped
3
Rows dropped
3

What was removed

6 entries
row defblpfreq(GdRtdC)lb of x(Amf.Bd.2.1.5)row defblpfreq(AmfUtC)lb of x(Amf.Rtd.1.1.0)row defblpfreq(GdUtC)ub of x(Amf.Bd.2.1.12)

6 of 6 shown. The complete list is in the sidecar.

Also published in the primal-infeasible set view →