Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:55:42 2013 Optimize a model with 12635 rows, 12285 columns and 49035 nonzeros Presolve removed 1967 rows and 0 columns Presolve time: 0.07s Presolved: 10668 rows, 12285 columns, 45101 nonzeros Variable types: 12250 continuous, 35 integer (35 binary) Root relaxation: objective 3.745633e+04, 1513 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 37456.3333 0 2 - 37456.3333 - - 0s H 0 0 37633.000000 37456.3333 0.47% - 0s H 0 0 37518.000000 37456.3333 0.16% - 0s H 0 0 37505.000000 37456.3333 0.13% - 0s 0 0 37456.6121 0 3 37505.0000 37456.6121 0.13% - 0s 0 0 37456.6121 0 2 37505.0000 37456.6121 0.13% - 0s 0 0 37456.6174 0 3 37505.0000 37456.6174 0.13% - 0s Cutting planes: Gomory: 1 Explored 0 nodes (2118 simplex iterations) in 0.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.750500000000e+04, best bound 3.750500000000e+04, gap 0.0%