MIPLIB 2017 Infeas

supportcase23

primal-infeasible

The instance

as published
Variables
24,275
Constraints
40,502
Nonzeros
161,525
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
B7032(7) ≥ 1
this instance, the other side
B7032(7) ≤ 0 at depth 293
Depth in the tree
293
Bounds tightened vs. source
18,293
Branch variable
B7032(7)

Tightened bounds

18,293 entries
C1(5)<=490.34836749999999C2(7)<=490.34836749999999C3(7)<=490.34836749999999C4(7)<=490.34836749999999C5(7)<=490.34836749999999C6(7)<=490.34836749999999C7(7)<=490.34836749999999C8(7)<=490.34836749999999C9(7)<=490.34836749999999C10(7)<=490.34836749999999C11(7)<=490.34836749999999C12(7)<=490.34836749999999

12 of 18,293 shown. The complete list is in the sidecar.