Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:37:28 2012 Optimize a model with 1241 rows, 2970 columns and 6424 nonzeros Presolve removed 26 rows and 1298 columns Presolve time: 0.09s Presolved: 1215 rows, 1672 columns, 5082 nonzeros Variable types: 0 continuous, 1672 integer (1672 binary) Found heuristic solution: objective 54.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.09 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%