Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:36:30 2012 Optimize a model with 47 rows, 272 columns and 334 nonzeros Presolve removed 17 rows and 227 columns Presolve time: 0.00s Presolved: 30 rows, 45 columns, 102 nonzeros Variable types: 0 continuous, 45 integer (45 binary) Found heuristic solution: objective 12.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.00 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%