MIPLIB 2017 Infeas

splice1k1

primal-infeasible

The instance

as published
Variables
3,253
Constraints
6,505
Nonzeros
1,761,016
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
objective ≤ 84
this instance, the other side
objective ≥ 85 at depth 32
Depth in the tree
32
Bounds tightened vs. source
190
Branch variable
objective

Tightened bounds

190 entries
objective>=85objective<=96X_INTRODUCED_9859_<=0X_INTRODUCED_9860_<=0X_INTRODUCED_9862_<=0X_INTRODUCED_9863_<=0X_INTRODUCED_9866_<=0X_INTRODUCED_9867_<=0X_INTRODUCED_9868_<=0X_INTRODUCED_9869_<=0X_INTRODUCED_9871_<=0X_INTRODUCED_9872_<=0

12 of 190 shown. The complete list is in the sidecar.