MIPLIB 2017 Infeas

s250r10

primal-infeasible

The instance

as published
Variables
273,142
Constraints
10,962
Nonzeros
1,318,607
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
A5_O396T5D407T7L0 ≤ 0
this instance, the other side
A5_O396T5D407T7L0 ≥ 1 at depth 28
Depth in the tree
28
Bounds tightened vs. source
244,082
Branch variable
A5_O396T5D407T7L0

Tightened bounds

244,082 entries
A8_0>=1A8_3>=1A8_4>=1A8_8>=1A8_9>=1A8_10<=0A8_11>=1A8_13<=0A8_14>=1A8_16>=1A8_17<=0A8_18<=0

12 of 244,082 shown. The complete list is in the sidecar.