Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:48:28 2012 Optimize a model with 485 rows, 464 columns and 1674 nonzeros Presolve removed 0 rows and 24 columns Presolve time: 0.00s Presolved: 485 rows, 440 columns, 1650 nonzeros Variable types: 0 continuous, 440 integer (439 binary) Found heuristic solution: objective 93.0000000 Root relaxation: objective 0.000000e+00, 278 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 0 192 93.00000 0.00000 100% - 0s H 0 0 76.0000000 0.00000 100% - 0s H 0 0 73.0000000 0.00000 100% - 0s 0 0 0.33870 0 194 73.00000 0.33870 100% - 0s H 0 0 53.0000000 0.33870 99.4% - 0s 0 0 0.82471 0 196 53.00000 0.82471 98.4% - 0s H 0 0 39.0000000 0.82471 97.9% - 0s 0 0 0.91709 0 196 39.00000 0.91709 97.6% - 0s H 0 0 37.0000000 0.91709 97.5% - 0s 0 0 0.91761 0 199 37.00000 0.91761 97.5% - 0s 0 0 0.91761 0 196 37.00000 0.91761 97.5% - 0s 0 2 0.94164 0 196 37.00000 0.94164 97.5% - 0s H 27 27 32.0000000 1.00000 96.9% 35.3 0s * 42 34 23 16.0000000 1.00000 93.8% 29.7 0s * 71 44 15 15.0000000 2.67033 82.2% 30.4 0s H 108 55 14.0000000 3.13158 77.6% 30.1 0s H 149 56 12.0000000 5.57692 53.5% 31.1 0s Cutting planes: Gomory: 3 Zero half: 1 Explored 330 nodes (11976 simplex iterations) in 0.52 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%