MIPLIB 2017 Infeas

ns1690781

dual-infeasible

The instance

as published
Variables
5,736
Constraints
11,115
Nonzeros
255,607
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
242
Rows dropped
66

What was removed

308 entries
ub of YL1192T6lb of XL1392S5T15ub of YL1292T3ub of YL1392T1lb of XL1392S8T6ub of YL1192T2lb of YL1392T3lb of YL1292T13lb of YL1192T34row R2754lb of XL1392S16T18ub of YL1192T1

12 of 308 shown. The complete list is in the sidecar.