Gurobi 5.0.1 (linux64) logging started Tue Nov 20 15:55:13 2012 Optimize a model with 19 rows, 52 columns and 38 nonzeros Presolve removed 19 rows and 52 columns Presolve time: 0.00s 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 4.000000000000e+01, best bound 4.000000000000e+01, gap 0.0%