Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:43:49 2012 Optimize a model with 12089 rows, 17030 columns and 52648 nonzeros Presolve removed 33 rows and 4032 columns Presolve time: 0.21s Presolved: 12056 rows, 12998 columns, 48432 nonzeros Variable types: 0 continuous, 12998 integer (12998 binary) Found heuristic solution: objective 130.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.24 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%