Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:43:41 2013 Optimize a model with 480 rows, 4240 columns and 8820 nonzeros Presolve removed 80 rows and 60 columns Presolve time: 0.02s Presolved: 400 rows, 4180 columns, 8600 nonzeros Variable types: 4100 continuous, 80 integer (80 binary) Root relaxation: objective 3.600389e+04, 326 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 36003.8892 0 2 - 36003.8892 - - 0s H 0 0 36199.703258 36003.8892 0.54% - 0s 0 1 36170.9880 0 1 36199.7033 36170.9880 0.08% - 0s Explored 2 nodes (330 simplex iterations) in 0.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.619970325776e+04, best bound 3.619970325776e+04, gap 0.0%