MIPLIB 2017 Infeas

n3div36

dual-infeasible

The instance

as published
Variables
22,120
Constraints
4,484
Nonzeros
340,740
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
2
Rows dropped
0

What was removed

2 entries
lb of x#new1_3_I270;;U1ub of x#new1_3_I270;;U9

2 of 2 shown. The complete list is in the sidecar.