MIPLIB 2017 Infeas

k1mushroom

primal-infeasible

The instance

as published
Variables
8,211
Constraints
16,419
Nonzeros
1,697,946
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
X_INTRODUCED_16365_ ≤ 1,174
this instance, the other side
X_INTRODUCED_16365_ ≥ 1,175 at depth 34
Depth in the tree
34
Bounds tightened vs. source
34
Branch variable
X_INTRODUCED_16365_

Tightened bounds

34 entries
X_INTRODUCED_16365_>=1175X_INTRODUCED_16365_<=4165X_INTRODUCED_24496_<=0X_INTRODUCED_24521_<=0X_INTRODUCED_24546_<=0X_INTRODUCED_24563_<=0X_INTRODUCED_50276_<=0X_INTRODUCED_50704_<=0X_INTRODUCED_50791_<=0X_INTRODUCED_50829_<=0X_INTRODUCED_50851_<=0X_INTRODUCED_50856_<=0

12 of 34 shown. The complete list is in the sidecar.