Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:00:52 2013 Optimize a model with 63 rows, 49 columns and 196 nonzeros Presolve removed 59 rows and 41 columns Presolve time: 0.00s Presolved: 4 rows, 8 columns, 14 nonzeros Variable types: 1 continuous, 7 integer (7 binary) Found heuristic solution: objective 640.0000000 Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.400000000000e+02, best bound 6.400000000000e+02, gap 0.0%