Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:40 2013 Optimize a model with 6550 rows, 6300 columns and 25050 nonzeros Presolve removed 25 rows and 0 columns Presolve time: 0.03s Presolved: 6525 rows, 6300 columns, 25025 nonzeros Variable types: 6275 continuous, 25 integer (25 binary) Root relaxation: objective 2.328479e+04, 911 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 23284.7892 0 16 - 23284.7892 - - 0s H 0 0 24695.000000 23284.7892 5.71% - 0s 0 0 24574.0125 0 3 24695.0000 24574.0125 0.49% - 0s H 0 0 24620.000000 24574.0125 0.19% - 0s 0 1 24607.1667 0 2 24620.0000 24607.1667 0.05% - 0s Cutting planes: Implied bound: 15 Explored 2 nodes (1128 simplex iterations) in 0.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.462000000000e+04, best bound 2.462000000000e+04, gap 0.0%