Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:37:42 2012 Optimize a model with 345 rows, 342 columns and 1202 nonzeros Presolve removed 0 rows and 22 columns Presolve time: 0.00s Presolved: 345 rows, 320 columns, 1180 nonzeros Variable types: 0 continuous, 320 integer (319 binary) Found heuristic solution: objective 59.0000000 Root relaxation: objective 0.000000e+00, 193 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 0 139 59.00000 0.00000 100% - 0s H 0 0 52.0000000 0.00000 100% - 0s H 0 0 41.0000000 0.00000 100% - 0s H 0 0 36.0000000 0.00000 100% - 0s 0 0 0.38116 0 140 36.00000 0.38116 98.9% - 0s H 0 0 32.0000000 0.38116 98.8% - 0s 0 0 1.00000 0 142 32.00000 1.00000 96.9% - 0s H 0 0 21.0000000 1.00000 95.2% - 0s 0 0 1.06606 0 143 21.00000 1.06606 94.9% - 0s 0 0 1.18850 0 144 21.00000 1.18850 94.3% - 0s 0 0 1.19686 0 147 21.00000 1.19686 94.3% - 0s 0 0 1.19686 0 147 21.00000 1.19686 94.3% - 0s 0 2 1.19750 0 147 21.00000 1.19750 94.3% - 0s * 30 19 18 10.0000000 2.49449 75.1% 31.2 0s H 54 22 9.0000000 2.70408 70.0% 26.9 0s H 108 8 8.0000000 6.59649 17.5% 25.8 0s Cutting planes: Gomory: 5 Mod-K: 1 Explored 119 nodes (3712 simplex iterations) in 0.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%