Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:36:35 2012 Optimize a model with 68 rows, 552 columns and 642 nonzeros Presolve removed 24 rows and 486 columns Presolve time: 0.00s Presolved: 44 rows, 66 columns, 151 nonzeros Variable types: 0 continuous, 66 integer (66 binary) Found heuristic solution: objective 22.0000000 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%