Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:52:40 2012 Optimize a model with 523 rows, 484 columns and 1789 nonzeros Presolve removed 0 rows and 19 columns Presolve time: 0.00s Presolved: 523 rows, 465 columns, 1770 nonzeros Variable types: 0 continuous, 465 integer (464 binary) Found heuristic solution: objective 97.0000000 Root relaxation: objective 0.000000e+00, 305 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 195 97.00000 0.00000 100% - 0s H 0 0 87.0000000 0.00000 100% - 0s H 0 0 82.0000000 0.00000 100% - 0s H 0 0 79.0000000 0.00000 100% - 0s 0 0 0.49134 0 199 79.00000 0.49134 99.4% - 0s 0 0 1.32412 0 197 79.00000 1.32412 98.3% - 0s H 0 0 69.0000000 1.32412 98.1% - 0s H 0 0 64.0000000 1.32412 97.9% - 0s 0 0 1.62356 0 199 64.00000 1.62356 97.5% - 0s H 0 0 61.0000000 1.62356 97.3% - 0s 0 0 1.62397 0 201 61.00000 1.62397 97.3% - 0s 0 0 1.62397 0 201 61.00000 1.62397 97.3% - 0s H 0 0 38.0000000 1.62397 95.7% - 0s H 0 0 34.0000000 1.62397 95.2% - 0s H 0 0 33.0000000 1.62397 95.1% - 0s 0 2 1.62412 0 201 33.00000 1.62412 95.1% - 0s H 27 27 31.0000000 1.64557 94.7% 40.2 0s H 81 66 23.0000000 1.64557 92.8% 36.1 0s H 142 94 17.0000000 1.75404 89.7% 28.7 0s Cutting planes: Gomory: 9 Explored 999 nodes (35810 simplex iterations) in 2.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%