MIPLIB 2017 Infeas

s100

primal-infeasible

The instance

as published
Variables
364,417
Constraints
14,733
Nonzeros
1,777,917
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
Atr_187_239tr_118_244_li2 ≤ 0
this instance, the other side
Atr_187_239tr_118_244_li2 ≥ 1 at depth 176
Depth in the tree
176
Bounds tightened vs. source
20,538
Branch variable
Atr_187_239tr_118_244_li2

Tightened bounds

20,538 entries
Atp_0tr_138_li2>=1Atp_0tr_237_li2<=0Atp_0tr_240_li2<=0Atp_0tr_243_li2<=0Atp_164tr_144_li2<=0Atp_164tr_208_li2<=0Atp_164tr_215_li2<=0Atp_164tr_223_li2<=0Atp_184tr_238_li2<=0Atp_184tr_241_li2<=0Atp_184tr_244_li2<=0Atp_232tr_239_li2<=0

12 of 20,538 shown. The complete list is in the sidecar.