MIPLIB 2017 Infeas

ns1905797

primal-infeasible

The instance

as published
Variables
18,192
Constraints
51,884
Nonzeros
239,700
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
C17913 ≥ 1
this instance, the other side
C17913 ≤ 0 at depth 501
Depth in the tree
501
Bounds tightened vs. source
501
Branch variable
C17913

Tightened bounds

501 entries
C0518>=1C0529<=0C0532<=0C0533>=1C0540<=0C0663<=0C0678<=0C0703<=0C0709<=0C0713<=0C0714<=0C0715<=0

12 of 501 shown. The complete list is in the sidecar.

Also published in the dual-infeasible set view →