MIPLIB 2017 Infeas

supportcase7

primal-infeasible

The instance

as published
Variables
138,844
Constraints
6,532
Nonzeros
2,845,545
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
B138779(8) ≤ 0
this instance, the other side
B138779(8) ≥ 1 at depth 12
Depth in the tree
12
Bounds tightened vs. source
138,032
Branch variable
B138779(8)

Tightened bounds

138,032 entries
C3(1)<=-0C4(1)>=20.969999999999999C4(1)<=20.969999999999999C9(1)>=19.07C9(1)<=19.07C14(1)>=17.34C14(1)<=17.34C19(1)>=30.050000000000001C19(1)<=30.050000000000001C24(1)>=24.84C24(1)<=24.84C29(1)<=0

12 of 138,032 shown. The complete list is in the sidecar.

Also published in the dual-infeasible set view →