Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:03:35 2013 Optimize a model with 57225 rows, 4900 columns and 173950 nonzeros Presolve removed 7468 rows and 2540 columns Presolve time: 0.46s Presolved: 49757 rows, 2360 columns, 150808 nonzeros Variable types: 23 continuous, 2337 integer (2337 binary) Found heuristic solution: objective 119142.00000 Root relaxation: objective 9.593737e+04, 10224 iterations, 0.86 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 95937.3676 0 10 119142.000 95937.3676 19.5% - 1s H 0 0 95954.000000 95937.3676 0.02% - 1s H 0 0 95950.000000 95937.3676 0.01% - 1s 0 0 95938.4423 0 30 95950.0000 95938.4423 0.01% - 1s 0 0 95938.4423 0 9 95950.0000 95938.4423 0.01% - 2s 0 0 95938.7542 0 27 95950.0000 95938.7542 0.01% - 2s H 0 0 95949.000000 95938.7542 0.01% - 2s 0 2 95939.1097 0 27 95949.0000 95939.1097 0.01% - 2s H 4 3 95947.000000 95939.1097 0.01% 0.8 2s Cutting planes: MIR: 8 Explored 4 nodes (12037 simplex iterations) in 2.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.594700000000e+04, best bound 9.594000000000e+04, gap 0.0073%