Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:50:30 2012 Optimize a model with 6425 rows, 10506 columns and 29272 nonzeros Presolve removed 36 rows and 3470 columns Presolve time: 0.14s Presolved: 6389 rows, 7036 columns, 25678 nonzeros Variable types: 0 continuous, 7036 integer (7036 binary) Found heuristic solution: objective 102.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.16 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%