MIPLIB 2017 Infeas

blp-ic98

dual-infeasible

The instance

as published
Variables
13,640
Constraints
715
Nonzeros
184,467
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
4
Rows dropped
2

What was removed

6 entries
row defblpfreq(EhvHtC)row defblpreq(EhvHtC)lb of x(Hgl.Ht.1.1.0)lb of x(Ehv.Ut.1.1.11)lb of x(Hgl.Ut.1.1.4)ub of x(Hgl.Ht.1.2.5)

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

Also published in the primal-infeasible set view →