Gurobi 5.0.1 (linux64) logging started Fri Nov 16 16:16:11 2012 Optimize a model with 9150 rows, 5700 columns and 32850 nonzeros Presolve removed 902 rows and 150 columns Presolve time: 0.16s Presolved: 8248 rows, 5550 columns, 30450 nonzeros Variable types: 0 continuous, 5550 integer (5550 binary) Found heuristic solution: objective 43.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: cutoff, 7303 iterations, 0.64 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 (7303 simplex iterations) in 0.82 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%