Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:39:53 2012 Optimize a model with 3119 rows, 6480 columns and 15438 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.11s Presolved: 3197 rows, 6478 columns, 21760 nonzeros Variable types: 0 continuous, 6478 integer (6478 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 0.12 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%