Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:45:54 2012 Optimize a model with 13719 rows, 19740 columns and 60198 nonzeros Presolve removed 38 rows and 5042 columns Presolve time: 0.26s Presolved: 13681 rows, 14698 columns, 54962 nonzeros Variable types: 0 continuous, 14698 integer (14698 binary) Found heuristic solution: objective 140.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.29 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%