Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:36:54 2012 Optimize a model with 399 rows, 1640 columns and 2638 nonzeros Presolve removed 29 rows and 1082 columns Presolve time: 0.02s Presolved: 370 rows, 558 columns, 1538 nonzeros Variable types: 0 continuous, 558 integer (558 binary) Found heuristic solution: objective 40.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.02 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%