Gurobi 5.0.1 (linux64) logging started Tue Apr 23 22:02:10 2013 Optimize a model with 2650 rows, 2600 columns and 10100 nonzeros Presolve removed 100 rows and 1 columns Presolve time: 0.01s Presolved: 2550 rows, 2599 columns, 9950 nonzeros Variable types: 2550 continuous, 49 integer (49 binary) Root relaxation: objective 8.169736e+05, 211 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 816973.602 0 3 - 816973.602 - - 0s H 0 0 826124.71250 816973.602 1.11% - 0s 0 0 825829.512 0 1 826124.712 825829.512 0.04% - 0s 0 0 825888.829 0 1 826124.712 825888.829 0.03% - 0s Cutting planes: Implied bound: 2 Explored 0 nodes (220 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.261247125000e+05, best bound 8.261247125000e+05, gap 0.0%