MIPLIB 2017 Infeas

bab1

primal-infeasible

The instance

as published
Variables
61,152
Constraints
60,680
Nonzeros
854,392
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
x37643 ≤ 0
this instance, the other side
x37643 ≥ 1 at depth 1,585
Depth in the tree
1,585
Bounds tightened vs. source
52,401
Branch variable
x37643

Tightened bounds

52,401 entries
x1<=0x2<=0x3<=0x4<=0x5<=0x6<=0x7<=0x8<=0x9<=0x10<=0x11<=0x12<=0

12 of 52,401 shown. The complete list is in the sidecar.

Also published in the dual-infeasible set view →