Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:55:52 2012 Optimize a model with 6147 rows, 11342 columns and 29254 nonzeros Presolve removed 42 rows and 4242 columns Presolve time: 0.14s Presolved: 6105 rows, 7100 columns, 24898 nonzeros Variable types: 0 continuous, 7100 integer (7100 binary) Found heuristic solution: objective 106.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.16 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%