Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:39:52 2012 Optimize a model with 2719 rows, 6480 columns and 14238 nonzeros Presolve removed 39 rows and 2962 columns Presolve time: 0.10s Presolved: 2680 rows, 3518 columns, 11210 nonzeros Variable types: 0 continuous, 3518 integer (3518 binary) Found heuristic solution: objective 80.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.11 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%