Gurobi 5.0.1 (linux64) logging started Fri Nov 16 16:40:06 2012 Optimize a model with 10374 rows, 6162 columns and 36972 nonzeros Presolve removed 470 rows and 156 columns Presolve time: 0.18s Presolved: 9904 rows, 6006 columns, 35646 nonzeros Variable types: 0 continuous, 6006 integer (6006 binary) Found heuristic solution: objective 45.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: cutoff, 8013 iterations, 0.78 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 3.00000 2.00000 33.3% - 0s Explored 0 nodes (8013 simplex iterations) in 0.99 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%