Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:02 2012 Optimize a model with 111 rows, 71 columns and 222 nonzeros Presolve removed 111 rows and 71 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 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%