Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:43:07 2012 Optimize a model with 3626 rows, 8742 columns and 19156 nonzeros Presolve removed 48 rows and 4280 columns Presolve time: 0.12s Presolved: 3578 rows, 4462 columns, 14800 nonzeros Variable types: 0 continuous, 4462 integer (4462 binary) Found heuristic solution: objective 93.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.13 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%