Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:00:35 2013 Optimize a model with 172 rows, 173 columns and 14017 nonzeros Presolve removed 172 rows and 173 columns Presolve time: 0.03s Explored 0 nodes (0 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.260000000000e+02, best bound 3.260000000000e+02, gap 0.0%