Opened 10 years ago
Closed 23 months ago
#96 closed defect (migrated)
CBC 2.4.2 claims a feasible problem is infeasible
Reported by: | mgalati | Owned by: | |
---|---|---|---|
Priority: | major | Component: | Cbc |
Version: | 2.4.1 | Keywords: | |
Cc: |
Description
[magala@orclus71 Dippy]$ /opt/coinor/Dip/build-O/bin/cbc PRICE_AND_CUT_subProb_BLOCK.n0.c0.p22.b0.mps Clp3003W Analysis indicates model infeasible or unbounded Clp0006I 0 Obj -1.04428 Primal inf 0.0442769 (1) Clp0001I Primal infeasible - objective value -1.04428 Clp0032I PrimalInfeasible objective -1.044277 - 0 iterations time 0.002 Cuts at root node changed objective from -1.1233 to -1.1233 Probing was tried 1 times and created 3 cuts of which 0 were active after adding rounds of cuts (0.000 seconds) Gomory was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds) Knapsack was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds) Clique was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds) MixedIntegerRounding2 was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds) FlowCover was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds) TwoMirCuts was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds) Result - Finishedproven-infeasible objective 1e+50 after 0 nodes and 0 iterations - took 0.02 seconds (total time 0.02) Total time 0.02
Cplex says the optimal solution = -1.
Attachments (1)
Change History (2)
Changed 10 years ago by mgalati
comment:1 Changed 23 months ago by stefan
- Component set to Cbc
- Resolution set to migrated
- Status changed from new to closed
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This ticket has been migrated to GitHub and will be resolved there: https://github.com/coin-or/Cbc/issues/96