Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:10:01 2012 Optimize a model with 649 rows, 650 columns and 2473 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.02s Presolved: 672 rows, 648 columns, 3046 nonzeros Variable types: 0 continuous, 648 integer (648 binary) Found heuristic solution: objective 25.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.03 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%