MIPLIB 2017 Infeas

rmine13

primal-infeasible

The instance

as published
Variables
23,980
Constraints
197,155
Nonzeros
485,784
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_B477_t10 ≥ 1
this instance, the other side
x_B477_t10 ≤ 0 at depth 944
Depth in the tree
944
Bounds tightened vs. source
944
Branch variable
x_B477_t10

Tightened bounds

944 entries
x_B1_t10<=0x_B2_t12<=0x_B3_t11<=0x_B4_t11<=0x_B5_t11<=0x_B14_t11<=0x_B15_t11<=0x_B19_t12<=0x_B22_t12<=0x_B25_t12<=0x_B26_t11<=0x_B30_t12<=0

12 of 944 shown. The complete list is in the sidecar.