Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:55:51 2012 Optimize a model with 6147 rows, 11342 columns and 29254 nonzeros Presolve removed 34 rows and 3394 columns Presolve time: 0.14s Presolved: 6113 rows, 7948 columns, 25746 nonzeros Variable types: 0 continuous, 7948 integer (7948 binary) Found heuristic solution: objective 106.0000000 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%