Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:13:40 2012 Optimize a model with 31 rows, 65 columns and 140 nonzeros Presolve removed 7 rows and 38 columns Presolve time: 0.00s Presolved: 24 rows, 27 columns, 72 nonzeros Variable types: 0 continuous, 27 integer (27 binary) Found heuristic solution: objective 0.0000000 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 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%