Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:09 2012 Optimize a model with 27 rows, 11 columns and 54 nonzeros Presolve removed 27 rows and 11 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+00, best bound 4.000000000000e+00, gap 0.0%