Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:28:34 2012 Optimize a model with 281 rows, 296 columns and 996 nonzeros Presolve removed 0 rows and 26 columns Presolve time: 0.00s Presolved: 281 rows, 270 columns, 970 nonzeros Variable types: 0 continuous, 270 integer (269 binary) Found heuristic solution: objective 42.0000000 Root relaxation: objective 0.000000e+00, 188 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 0 106 42.00000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s H 0 0 28.0000000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.09015 0 108 26.00000 0.09015 100% - 0s H 0 0 20.0000000 0.09015 100% - 0s H 0 0 17.0000000 0.09015 99.5% - 0s 0 0 0.76812 0 117 17.00000 0.76812 95.5% - 0s H 0 0 16.0000000 0.76812 95.2% - 0s H 0 0 14.0000000 0.76812 94.5% - 0s 0 0 0.76812 0 119 14.00000 0.76812 94.5% - 0s 0 0 0.76812 0 118 14.00000 0.76812 94.5% - 0s H 0 0 9.0000000 0.76812 91.5% - 0s 0 2 0.77370 0 118 9.00000 0.77370 91.4% - 0s * 31 17 23 6.0000000 1.00000 83.3% 23.7 0s H 88 21 5.0000000 1.00000 80.0% 21.7 0s Cutting planes: Gomory: 4 Zero half: 2 Explored 178 nodes (4163 simplex iterations) in 0.15 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%