MIPLIB 2017 Infeas

neos-4797081-pakoka

primal-infeasible

The instance

as published
Variables
12,393
Constraints
7,147
Nonzeros
456,124
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
x12158 ≥ 1
this instance, the other side
x12158 ≤ 0 at depth 48
Depth in the tree
48
Bounds tightened vs. source
1,987
Branch variable
x12158

Tightened bounds

1,987 entries
x1614>=1x2310>=1x3774>=1x6282>=1x8076>=1x12315>=220x12315<=220x343>=1x601>=1x955>=1x6565>=1x8401>=1

12 of 1,987 shown. The complete list is in the sidecar.