Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:56:05 2013 Optimize a model with 12670 rows, 12320 columns and 49070 nonzeros Presolve removed 35 rows and 0 columns Presolve time: 0.05s Presolved: 12635 rows, 12320 columns, 49035 nonzeros Variable types: 12285 continuous, 35 integer (35 binary) Root relaxation: objective 3.262068e+04, 1553 iterations, 0.22 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 32620.6818 0 28 - 32620.6818 - - 0s H 0 0 37576.000000 32620.6818 13.2% - 0s 0 0 35145.1418 0 7 37576.0000 35145.1418 6.47% - 0s H 0 0 36251.000000 35145.1418 3.05% - 0s 0 0 35185.4687 0 5 36251.0000 35185.4687 2.94% - 0s H 0 0 35851.000000 35185.4687 1.86% - 0s H 0 0 35232.000000 35185.4687 0.13% - 0s 0 0 35187.2649 0 2 35232.0000 35187.2649 0.13% - 0s 0 0 cutoff 0 35232.0000 35232.0000 0.0% - 1s Cutting planes: Implied bound: 28 Explored 0 nodes (2525 simplex iterations) in 1.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.523200000000e+04, best bound 3.523200000000e+04, gap 0.0%