MIPLIB 2017 Infeas

t1717

primal-infeasible

The instance

as published
Variables
73,885
Constraints
551
Nonzeros
325,689
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
x23472 ≤ 0
this instance, the other side
x23472 ≥ 1 at depth 27,524
Depth in the tree
27,524
Bounds tightened vs. source
27,524
Branch variable
x23472

Tightened bounds

27,524 entries
x1<=0x2<=0x5<=0x6<=0x7<=0x9<=0x11<=0x16<=0x17<=0x19<=0x22<=0x24<=0

12 of 27,524 shown. The complete list is in the sidecar.

Also published in the dual-infeasible set view →