Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:39:34 2012 Optimize a model with 2540 rows, 6006 columns and 13242 nonzeros Presolve removed 156 rows and 2 columns Presolve time: 0.12s Presolved: 2461 rows, 6004 columns, 18724 nonzeros Variable types: 0 continuous, 6004 integer (6004 binary) Found heuristic solution: objective 77.0000000 Root relaxation: objective 3.000000e+00, 1954 iterations, 0.04 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% - 0s Explored 0 nodes (4345 simplex iterations) in 0.33 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%