Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:20:04 2012 Optimize a model with 6385 rows, 3906 columns and 22752 nonzeros Presolve removed 436 rows and 2 columns Presolve time: 0.18s Presolved: 6011 rows, 3904 columns, 25350 nonzeros Variable types: 0 continuous, 3904 integer (3904 binary) Found heuristic solution: objective 61.0000000 Root relaxation: objective 3.000000e+00, 4661 iterations, 0.36 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 1s Explored 0 nodes (13478 simplex iterations) in 1.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%