MIPLIB 2017 Infeas

nucorsav

primal-infeasible

The instance

as published
Variables
55,410
Constraints
1,812,472
Nonzeros
26,170,428
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
x54736 ≤ 0
this instance, the other side
x54736 ≥ 1 at depth 9
Depth in the tree
9
Bounds tightened vs. source
3,449
Branch variable
x54736

Tightened bounds

3,449 entries
x1<=66x2<=66x3<=66x4<=66x5<=66x6<=66x7<=66x8<=66x9<=66x10<=66x11<=66x12<=66

12 of 3,449 shown. The complete list is in the sidecar.