Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:53 2012 Optimize a model with 315 rows, 323 columns and 1108 nonzeros Presolve removed 0 rows and 18 columns Presolve time: 0.00s Presolved: 315 rows, 305 columns, 1090 nonzeros Variable types: 0 continuous, 305 integer (304 binary) Found heuristic solution: objective 60.0000000 Root relaxation: objective 0.000000e+00, 189 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 0 135 60.00000 0.00000 100% - 0s H 0 0 37.0000000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s H 0 0 33.0000000 0.00000 100% - 0s 0 0 0.39722 0 136 33.00000 0.39722 98.8% - 0s H 0 0 32.0000000 0.39722 98.8% - 0s 0 0 1.00000 0 141 32.00000 1.00000 96.9% - 0s H 0 0 31.0000000 1.00000 96.8% - 0s H 0 0 27.0000000 1.00000 96.3% - 0s 0 0 1.00000 0 142 27.00000 1.00000 96.3% - 0s 0 0 1.00000 0 140 27.00000 1.00000 96.3% - 0s H 0 0 26.0000000 1.00000 96.2% - 0s H 0 0 24.0000000 1.00000 95.8% - 0s H 0 0 23.0000000 1.00000 95.7% - 0s 0 2 1.00000 0 140 23.00000 1.00000 95.7% - 0s * 25 14 15 5.0000000 1.00000 80.0% 42.8 0s Cutting planes: Gomory: 3 Zero half: 8 Explored 116 nodes (4360 simplex iterations) in 0.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%