Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:54:28 2012 Optimize a model with 6031 rows, 10920 columns and 28494 nonzeros Presolve removed 31 rows and 3018 columns Presolve time: 0.14s Presolved: 6000 rows, 7902 columns, 25362 nonzeros Variable types: 0 continuous, 7902 integer (7902 binary) Found heuristic solution: objective 104.0000000 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%