MIPLIB 2017 Infeas

ger50-17-trans-pop-3t

primal-infeasible

The instance

as published
Variables
22,414
Constraints
499
Nonzeros
172,035
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$Mannheim_@33de ≥ 1
this instance, the other side
x$Mannheim_@33de ≤ 0 at depth 18,121
Depth in the tree
18,121
Bounds tightened vs. source
18,187
Branch variable
x$Mannheim_@33de

Tightened bounds

18,187 entries
x$Bremen_Le@1100<=0x$Bremen_Le@1101<=0x$Bremen_Le@1102<=0x$Bremen_Le@1103>=1x$Bremen_Le@1103<=1x$Bremen_Le@1104<=0x$Bremen_Le@1105<=0x$Bremen_Le@1106<=0x$Bremen_Le@1107<=0x$Bremen_Le@1108<=0x$Bremen_Le@1109<=0x$Bremen_Le@110a<=0

12 of 18,187 shown. The complete list is in the sidecar.

Also published in the dual-infeasible set view →