Gurobi 5.0.1 (linux64) logging started Tue Apr 23 22:02:13 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 8.516064e+05, 255 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 851606.395 0 3 - 851606.395 - - 0s H 0 0 855135.07500 851606.395 0.41% - 0s H 0 0 853080.12500 851606.395 0.17% - 0s H 0 0 852524.62500 851606.395 0.11% - 0s 0 0 851900.492 0 1 852524.625 851900.492 0.07% - 0s 0 0 851900.492 0 1 852524.625 851900.492 0.07% - 0s 0 0 852396.686 0 2 852524.625 852396.686 0.02% - 0s Explored 0 nodes (305 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.525246250000e+05, best bound 8.525246250000e+05, gap 0.0%