MIPLIB 2017 Infeas

leo1

primal-infeasible

The instance

as published
Variables
6,731
Constraints
593
Nonzeros
131,218
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
C0002346 ≥ 1
this instance, the other side
C0002346 ≤ 0 at depth 2,566
Depth in the tree
2,566
Bounds tightened vs. source
6,689
Branch variable
C0002346

Tightened bounds

6,689 entries
C0000001>=0C0000002<=0C0000003<=0C0000004<=0C0000005<=0C0000006<=0C0000007<=0C0000008<=0C0000009<=0C0000010<=0C0000011<=0C0000012<=0

12 of 6,689 shown. The complete list is in the sidecar.

Also published in the dual-infeasible set view →