Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:55:45 2013 Optimize a model with 385 rows, 12285 columns and 24535 nonzeros Presolve time: 0.02s Presolved: 385 rows, 12285 columns, 24535 nonzeros Variable types: 12250 continuous, 35 integer (35 binary) Root relaxation: objective 3.628009e+04, 494 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 36280.0879 0 4 - 36280.0879 - - 0s H 0 0 36520.000000 36280.0879 0.66% - 0s 0 0 36471.5627 0 3 36520.0000 36471.5627 0.13% - 0s 0 0 36476.7345 0 3 36520.0000 36476.7345 0.12% - 0s 0 0 36476.7345 0 4 36520.0000 36476.7345 0.12% - 0s 0 0 36476.7345 0 3 36520.0000 36476.7345 0.12% - 0s 0 0 36476.7345 0 3 36520.0000 36476.7345 0.12% - 0s 0 0 36479.1283 0 3 36520.0000 36479.1283 0.11% - 0s 0 0 36479.2776 0 3 36520.0000 36479.2776 0.11% - 0s H 0 0 36501.000000 36479.2776 0.06% - 0s 0 0 36480.8418 0 2 36501.0000 36480.8418 0.06% - 0s 0 0 36484.3174 0 4 36501.0000 36484.3174 0.05% - 0s 0 0 36497.5000 0 1 36501.0000 36497.5000 0.01% - 0s Cutting planes: Implied bound: 30 Flow cover: 2 Explored 0 nodes (1076 simplex iterations) in 0.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.650100000000e+04, best bound 3.649750000000e+04, gap 0.0096%