MIPLIB 2017 Infeas

rmine15

primal-infeasible

The instance

as published
Variables
42,438
Constraints
358,395
Nonzeros
879,732
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_B2505_t2 ≤ 0
this instance, the other side
x_B2505_t2 ≥ 1 at depth 1,170
Depth in the tree
1,170
Bounds tightened vs. source
1,170
Branch variable
x_B2505_t2

Tightened bounds

1,170 entries
x_B1_t10>=1x_B2_t13<=0x_B6_t14<=0x_B9_t13<=0x_B11_t13<=0x_B13_t13<=0x_B15_t10<=0x_B15_t11<=0x_B16_t11<=0x_B17_t13<=0x_B21_t14<=0x_B27_t14<=0

12 of 1,170 shown. The complete list is in the sidecar.