Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:21:16 2012 Optimize a model with 223 rows, 178 columns and 733 nonzeros Presolve removed 0 rows and 3 columns Presolve time: 0.00s Presolved: 223 rows, 175 columns, 730 nonzeros Variable types: 0 continuous, 175 integer (174 binary) Found heuristic solution: objective 52.0000000 Root relaxation: objective 0.000000e+00, 102 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 63 52.00000 0.00000 100% - 0s H 0 0 49.0000000 0.00000 100% - 0s H 0 0 39.0000000 0.00000 100% - 0s 0 0 0.47619 0 64 39.00000 0.47619 98.8% - 0s H 0 0 38.0000000 0.47619 98.7% - 0s 0 0 1.03546 0 66 38.00000 1.03546 97.3% - 0s H 0 0 35.0000000 1.03546 97.0% - 0s 0 0 1.20996 0 68 35.00000 1.20996 96.5% - 0s H 0 0 32.0000000 1.20996 96.2% - 0s 0 0 1.20996 0 69 32.00000 1.20996 96.2% - 0s 0 0 1.20996 0 68 32.00000 1.20996 96.2% - 0s H 0 0 29.0000000 1.20996 95.8% - 0s H 0 0 28.0000000 1.20996 95.7% - 0s 0 2 1.21110 0 68 28.00000 1.21110 95.7% - 0s H 16 16 23.0000000 2.78540 87.9% 37.6 0s * 25 25 13 17.0000000 2.78540 83.6% 33.8 0s * 60 33 11 16.0000000 6.12758 61.7% 30.7 0s * 294 38 13 15.0000000 10.61767 29.2% 26.9 0s Cutting planes: Gomory: 4 Zero half: 2 Explored 369 nodes (9391 simplex iterations) in 0.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%