Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:38:28 2012 Optimize a model with 1540 rows, 4556 columns and 8842 nonzeros Presolve removed 38 rows and 2414 columns Presolve time: 0.10s Presolved: 1502 rows, 2142 columns, 6384 nonzeros Variable types: 0 continuous, 2142 integer (2142 binary) Found heuristic solution: objective 67.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.10 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%