Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:01:00 2013 Optimize a model with 18144 rows, 17724 columns and 70644 nonzeros Presolve removed 42 rows and 0 columns Presolve time: 0.08s Presolved: 18102 rows, 17724 columns, 70602 nonzeros Variable types: 17682 continuous, 42 integer (42 binary) Root relaxation: objective 3.900581e+04, 2597 iterations, 0.50 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 39005.8114 0 33 - 39005.8114 - - 0s H 0 0 47675.000000 39005.8114 18.2% - 0s 0 0 44979.2797 0 4 47675.0000 44979.2797 5.65% - 1s H 0 0 45813.930760 44979.2797 1.82% - 1s H 0 0 45124.000000 44979.2797 0.32% - 1s H 0 0 45104.000000 44979.2797 0.28% - 1s H 0 0 45048.000000 44979.2797 0.15% - 1s 0 2 45022.1023 0 3 45048.0000 45022.1023 0.06% - 1s Cutting planes: Gomory: 1 Implied bound: 32 Explored 3 nodes (3810 simplex iterations) in 1.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.504800000000e+04, best bound 4.504800000000e+04, gap 0.0%