Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:11 2012 Optimize a model with 179 rows, 147 columns and 592 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 179 rows, 145 columns, 590 nonzeros Variable types: 0 continuous, 145 integer (144 binary) Found heuristic solution: objective 40.0000000 Root relaxation: objective 0.000000e+00, 82 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 55 40.00000 0.00000 100% - 0s H 0 0 37.0000000 0.00000 100% - 0s H 0 0 30.0000000 0.00000 100% - 0s H 0 0 25.0000000 0.00000 100% - 0s 0 0 0.47273 0 56 25.00000 0.47273 98.1% - 0s H 0 0 22.0000000 0.47273 97.9% - 0s 0 0 1.00000 0 56 22.00000 1.00000 95.5% - 0s H 0 0 21.0000000 1.00000 95.2% - 0s 0 0 1.05482 0 58 21.00000 1.05482 95.0% - 0s 0 0 1.07306 0 59 21.00000 1.07306 94.9% - 0s 0 0 1.14489 0 59 21.00000 1.14489 94.5% - 0s 0 0 1.15312 0 59 21.00000 1.15312 94.5% - 0s H 0 0 20.0000000 1.15312 94.2% - 0s H 0 0 15.0000000 1.15312 92.3% - 0s H 0 0 13.0000000 1.15312 91.1% - 0s 0 2 1.15769 0 59 13.00000 1.15769 91.1% - 0s * 29 10 9 12.0000000 4.10540 65.8% 19.9 0s Cutting planes: Gomory: 3 Mod-K: 3 Explored 81 nodes (1778 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%