MIPLIB 2017 Infeas

30n20b8

dual-infeasible

The instance

as published
Variables
18,380
Constraints
572
Nonzeros
107,150
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
51
Rows dropped
4

What was removed

55 entries
lb of R_Mechanikerlb of x_12_1_92lb of x_27_3_201lb of x_20_2_112lb of x_20_1_179lb of x_2_2_6lb of x_20_2_131lb of x_2_2_39lb of x_3_3_17lb of x_2_2_28lb of x_12_3_137lb of x_14_1_100

12 of 55 shown. The complete list is in the sidecar.

Also published in the primal-infeasible set view →