MIPLIB 2017 Infeas

radiationm40-10-02

primal-infeasible

The instance

as published
Variables
172,013
Constraints
173,603
Nonzeros
406,825
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_11677_ ≤ 0
this instance, the other side
X_INTRODUCED_11677_ ≥ 1 at depth 526
Depth in the tree
526
Bounds tightened vs. source
526
Branch variable
X_INTRODUCED_11677_

Tightened bounds

526 entries
X_INTRODUCED_7_>=1X_INTRODUCED_7_<=2X_INTRODUCED_19_<=0X_INTRODUCED_169_<=0X_INTRODUCED_269_<=0X_INTRODUCED_338_<=0X_INTRODUCED_389_<=0X_INTRODUCED_409_<=0X_INTRODUCED_609_<=0X_INTRODUCED_749_<=0X_INTRODUCED_759_<=0X_INTRODUCED_879_<=0

12 of 526 shown. The complete list is in the sidecar.