Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:00:35 2013 Optimize a model with 3 rows, 4 columns and 6 nonzeros Presolve removed 3 rows and 4 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 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%