Gurobi 5.0.1 (linux64) logging started Mon Feb 4 18:06:52 2013 Optimize a model with 8473 rows, 1369 columns and 26011 nonzeros Presolve removed 1382 rows and 707 columns Presolve time: 0.06s Presolved: 7091 rows, 662 columns, 21848 nonzeros Variable types: 17 continuous, 645 integer (645 binary) Found heuristic solution: objective 22715.000000 Root relaxation: objective 1.494223e+04, 2966 iterations, 0.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 14942.2333 0 11 22715.0000 14942.2333 34.2% - 0s H 0 0 14957.000000 14942.2333 0.10% - 0s H 0 0 14955.000000 14942.2333 0.09% - 0s 0 0 14943.7833 0 14 14955.0000 14943.7833 0.08% - 0s 0 0 14943.7833 0 12 14955.0000 14943.7833 0.08% - 0s 0 0 14943.9250 0 21 14955.0000 14943.9250 0.07% - 0s 0 0 14944.8947 0 23 14955.0000 14944.8947 0.07% - 0s 0 0 14945.2723 0 25 14955.0000 14945.2723 0.07% - 0s 0 2 14945.3482 0 25 14955.0000 14945.3482 0.06% - 0s H 1 2 14952.000000 14945.3482 0.04% 0.0 0s H 7 5 14951.000000 14945.9092 0.03% 0.0 0s H 42 2 14948.000000 14947.3690 0.00% 17.0 0s Cutting planes: Gomory: 3 MIR: 25 Zero half: 4 Explored 42 nodes (4077 simplex iterations) in 0.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.494800000000e+04, best bound 1.494800000000e+04, gap 0.0%