Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:56:44 2012 Optimize a model with 15911 rows, 23562 columns and 70531 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.28s Presolved: 16062 rows, 23560 columns, 93732 nonzeros Variable types: 0 continuous, 23560 integer (23560 binary) Found heuristic solution: objective 153.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 0 iterations, 0.01 seconds Explored 0 nodes (0 simplex iterations) in 0.32 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%