MIPLIB 2017 Infeas

fast0507

dual-infeasible

The instance

as published
Variables
63,009
Constraints
493
Nonzeros
372,415
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
53
Rows dropped
14

What was removed

67 entries
lb of x29973lb of x8997lb of x49323lb of x4989lb of x26414lb of x40086lb of x32010lb of x10959row c115row c366lb of x1586lb of x17463

12 of 67 shown. The complete list is in the sidecar.