Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:44:14 2012 Optimize a model with 12740 rows, 18906 columns and 56442 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.21s Presolved: 12875 rows, 18904 columns, 75025 nonzeros Variable types: 0 continuous, 18904 integer (18904 binary) Found heuristic solution: objective 137.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.25 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%