Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:10:11 2012 Optimize a model with 608 rows, 870 columns and 2550 nonzeros Presolve removed 12 rows and 292 columns Presolve time: 0.02s Presolved: 596 rows, 578 columns, 2218 nonzeros Variable types: 0 continuous, 578 integer (578 binary) Found heuristic solution: objective 29.0000000 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%