MIPLIB 2017 Infeas

nursesched-medium04

dual-infeasible

The instance

as published
Variables
29,667
Constraints
8,668
Nonzeros
621,829
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
6
Rows dropped
0

What was removed

6 entries
lb of rw(N3,1,27)ub of rw(N3,16,27)lb of rw(N3,14,17)lb of rw(N3,16,26)ub of rw(N3,1,17)ub of rw(N3,14,26)

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

Also published in the primal-infeasible set view →