Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:55:48 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 3.697191e+04, 567 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 36971.9133 0 8 - 36971.9133 - - 0s H 0 0 38286.000000 36971.9133 3.43% - 0s 0 0 37213.7084 0 5 38286.0000 37213.7084 2.80% - 0s H 0 0 37458.000000 37213.7084 0.65% - 0s H 0 0 37297.000000 37213.7084 0.22% - 0s 0 0 37230.4087 0 3 37297.0000 37230.4087 0.18% - 0s 0 0 37234.6860 0 3 37297.0000 37234.6860 0.17% - 0s 0 0 37235.7010 0 4 37297.0000 37235.7010 0.16% - 0s 0 0 37237.1350 0 2 37297.0000 37237.1350 0.16% - 0s 0 0 37237.1350 0 8 37297.0000 37237.1350 0.16% - 0s 0 0 37237.1350 0 6 37297.0000 37237.1350 0.16% - 0s 0 0 37237.1350 0 3 37297.0000 37237.1350 0.16% - 0s 0 0 37237.1350 0 3 37297.0000 37237.1350 0.16% - 0s 0 0 37237.1350 0 4 37297.0000 37237.1350 0.16% - 0s 0 0 37238.8125 0 3 37297.0000 37238.8125 0.16% - 0s 0 0 37238.9990 0 3 37297.0000 37238.9990 0.16% - 0s 0 2 37240.9625 0 3 37297.0000 37240.9625 0.15% - 0s * 4 3 4 37272.000000 37254.2982 0.05% 13.2 0s * 6 1 4 37264.000000 37264.0000 0.0% 10.3 0s Cutting planes: Implied bound: 57 Flow cover: 4 Explored 7 nodes (1332 simplex iterations) in 0.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.726400000000e+04, best bound 3.726400000000e+04, gap 0.0%