Gurobi 5.0.1 (linux64) logging started Tue Dec 25 15:27:45 2012 Optimize a model with 902 rows, 840 columns and 3540 nonzeros Presolve removed 232 rows and 40 columns Presolve time: 0.02s Presolved: 670 rows, 800 columns, 3213 nonzeros Variable types: 380 continuous, 420 integer (420 binary) Root relaxation: objective 1.662200e+02, 770 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 166.21999 0 45 - 166.21999 - - 0s H 0 0 265.0000000 166.21999 37.3% - 0s 0 0 174.82331 0 46 265.00000 174.82331 34.0% - 0s 0 0 178.32636 0 45 265.00000 178.32636 32.7% - 0s 0 0 178.88796 0 45 265.00000 178.88796 32.5% - 0s 0 0 178.99608 0 45 265.00000 178.99608 32.5% - 0s 0 0 179.42581 0 47 265.00000 179.42581 32.3% - 0s 0 0 179.46897 0 49 265.00000 179.46897 32.3% - 0s 0 0 179.47148 0 50 265.00000 179.47148 32.3% - 0s 0 0 179.47148 0 50 265.00000 179.47148 32.3% - 0s H 0 0 228.0000000 179.47148 21.3% - 0s H 0 0 227.0000000 179.47148 20.9% - 0s 0 2 179.96987 0 49 227.00000 179.96987 20.7% - 0s H 70 58 217.0000000 183.37982 15.5% 33.5 0s H 125 87 212.0000000 183.61189 13.4% 30.7 0s H 371 131 201.0000000 190.60557 5.17% 29.8 0s Cutting planes: Gomory: 8 Cover: 27 Implied bound: 37 Flow cover: 26 GUB cover: 2 Explored 566 nodes (14986 simplex iterations) in 1.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.010000000000e+02, best bound 2.010000000000e+02, gap 0.0%