Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:29:58 2012 Optimize a model with 8236 rows, 5112 columns and 29536 nonzeros Presolve removed 925 rows and 142 columns Presolve time: 0.15s Presolved: 7311 rows, 4970 columns, 27122 nonzeros Variable types: 0 continuous, 4970 integer (4970 binary) Found heuristic solution: objective 41.0000000 Root relaxation: objective 3.000000e+00, 6669 iterations, 0.55 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 72 41.00000 3.00000 92.7% - 1s H 0 0 3.0000000 3.00000 0.0% - 1s Explored 0 nodes (18996 simplex iterations) in 1.81 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%