MIPLIB 2017 Infeas

gfd-schedulen180f7d50m30k18

primal-infeasible

The instance

as published
Variables
227,535
Constraints
457,985
Nonzeros
1,233,372
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_701254_ ≥ 1
this instance, the other side
X_INTRODUCED_701254_ ≤ 0 at depth 570
Depth in the tree
570
Bounds tightened vs. source
47,025
Branch variable
X_INTRODUCED_701254_

Tightened bounds

47,025 entries
X_INTRODUCED_18_<=34X_INTRODUCED_48_<=156X_INTRODUCED_51_<=107X_INTRODUCED_91_>=132X_INTRODUCED_104_<=151X_INTRODUCED_111_<=137X_INTRODUCED_114_<=24X_INTRODUCED_136_<=83X_INTRODUCED_148_>=21X_INTRODUCED_156_>=49X_INTRODUCED_156_<=49X_INTRODUCED_172_>=51

12 of 47,025 shown. The complete list is in the sidecar.