MIPLIB 2017 Infeas

blp-ic98

primal-infeasible

The instance

as published
Variables
13,640
Constraints
717
Nonzeros
191,947
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(Ledn.Vl.1.1.0) ≤ 0
this instance, the other side
x(Ledn.Vl.1.1.0) ≥ 1 at depth 226
Depth in the tree
226
Bounds tightened vs. source
270
Branch variable
x(Ledn.Vl.1.1.0)

Tightened bounds

270 entries
obj>=0x(Asd.Nm.1.1.0)<=0x(Asd.Nm.1.1.1)<=0x(Asd.Nm.1.1.2)<=0x(Asd.Nm.1.1.3)<=0x(Asd.Nm.1.1.4)<=0x(Asd.Nm.1.1.5)<=0x(Asd.Nm.1.1.12)<=0x(Asd.Nm.1.2.0)<=0x(Asd.Nm.1.2.1)<=0x(Asd.Nm.1.2.2)<=0x(Asd.Nm.1.2.3)<=0

12 of 270 shown. The complete list is in the sidecar.

Also published in the dual-infeasible set view →