Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:11 2013 Optimize a model with 8148 rows, 7868 columns and 31388 nonzeros Presolve removed 333 rows and 0 columns Presolve time: 0.05s Presolved: 7815 rows, 7868 columns, 30722 nonzeros Variable types: 7840 continuous, 28 integer (28 binary) Root relaxation: objective 2.352502e+04, 763 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 23525.0250 0 1 - 23525.0250 - - 0s H 0 0 23600.000000 23525.0250 0.32% - 0s 0 0 23527.0882 0 1 23600.0000 23527.0882 0.31% - 0s 0 0 23532.2258 0 1 23600.0000 23532.2258 0.29% - 0s 0 0 23552.1667 0 2 23600.0000 23552.1667 0.20% - 0s 0 0 23552.1667 0 2 23600.0000 23552.1667 0.20% - 0s 0 0 23553.5952 0 2 23600.0000 23553.5952 0.20% - 0s 0 2 23554.5000 0 2 23600.0000 23554.5000 0.19% - 0s * 3 1 2 23588.000000 23588.0000 0.0% 4.0 0s Cutting planes: Gomory: 1 Explored 4 nodes (978 simplex iterations) in 0.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.358800000000e+04, best bound 2.358800000000e+04, gap 0.0%