Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:30:44 2013 Optimize a model with 2324 rows, 576 columns and 7200 nonzeros Presolve removed 435 rows and 296 columns Presolve time: 0.02s Presolved: 1889 rows, 280 columns, 5897 nonzeros Variable types: 11 continuous, 269 integer (269 binary) Found heuristic solution: objective 12515.000000 Root relaxation: objective 9.998620e+03, 1479 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 9998.62000 0 4 12515.0000 9998.62000 20.1% - 0s H 0 0 10008.000000 9998.62000 0.09% - 0s 0 0 10001.4327 0 12 10008.0000 10001.4327 0.07% - 0s 0 0 10001.4327 0 3 10008.0000 10001.4327 0.07% - 0s 0 0 10001.4327 0 11 10008.0000 10001.4327 0.07% - 0s 0 1 10001.6864 0 11 10008.0000 10001.6864 0.06% - 0s Cutting planes: MIR: 3 Explored 1 nodes (1520 simplex iterations) in 0.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000800000000e+04, best bound 1.000800000000e+04, gap 0.0%