Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:37:42 2012 Optimize a model with 1275 rows, 3422 columns and 6958 nonzeros Presolve removed 32 rows and 1742 columns Presolve time: 0.09s Presolved: 1243 rows, 1680 columns, 5174 nonzeros Variable types: 0 continuous, 1680 integer (1680 binary) Found heuristic solution: objective 58.0000000 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%