MIPLIB 2017 Infeas

sct32

primal-infeasible

The instance

as published
Variables
9,767
Constraints
5,440
Nonzeros
109,654
Format
MPS, gzipped

Where it comes from

provenance

A branch-and-bound run reached this node's parent and split on a variable. This instance is the side the search did not explore, and it has no feasible point.

branch taken by the search
x219 ≥ 1
this instance, the other side
x219 ≤ 0 at depth 1,158
Depth in the tree
1,158
Bounds tightened vs. source
2,608
Branch variable
x219

Tightened bounds

2,608 entries
x0<=0x3>=1x4<=0x6<=0x7<=0x8>=1x10>=1x12<=0x16<=0x18<=0x23<=0x24<=0

12 of 2,608 shown. The complete list is in the sidecar.