Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:02:44 2012 Optimize a model with 6666 rows, 12882 columns and 32316 nonzeros Presolve removed 42 rows and 4522 columns Presolve time: 0.13s Presolved: 6624 rows, 8360 columns, 27678 nonzeros Variable types: 0 continuous, 8360 integer (8360 binary) Found heuristic solution: objective 113.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.15 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%