Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:43:27 2012 Optimize a model with 12919 rows, 18632 columns and 56710 nonzeros Presolve removed 39 rows and 5034 columns Presolve time: 0.23s Presolved: 12880 rows, 13598 columns, 51488 nonzeros Variable types: 0 continuous, 13598 integer (13598 binary) Found heuristic solution: objective 136.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.26 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%