Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:57:20 2012 Optimize a model with 6740 rows, 11556 columns and 31242 nonzeros Presolve removed 31 rows and 3105 columns Presolve time: 0.13s Presolved: 6709 rows, 8451 columns, 28013 nonzeros Variable types: 0 continuous, 8451 integer (8451 binary) Found heuristic solution: objective 107.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%