Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:39:23 2012 Optimize a model with 2811 rows, 5852 columns and 13906 nonzeros Presolve removed 26 rows and 1826 columns Presolve time: 0.10s Presolved: 2785 rows, 4026 columns, 12008 nonzeros Variable types: 0 continuous, 4026 integer (4026 binary) Found heuristic solution: objective 76.0000000 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%