sp97ar
primal-infeasible
The instance
as published- Variables
- 14,101
- Constraints
- 1,761
- Nonzeros
- 290,968
- Format
- MPS, gzipped
Where it comes from
provenanceA 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
x2976 ≤ 0
this instance, the other side
x2976 ≥ 1 at depth 4,172
x2976 ≤ 0
this instance, the other side
x2976 ≥ 1 at depth 4,172
- Depth in the tree
- 4,172
- Bounds tightened vs. source
- 4,172
- Branch variable
- x2976
Tightened bounds
4,172 entriesx38<=0x62<=0x63<=0x64<=0x65<=0x66<=0x67<=0x68<=0x69<=0x70<=0x71<=0x72<=0
12 of 4,172 shown. The complete list is in the sidecar.