Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:32 2012 Optimize a model with 1 rows, 4 columns and 2 nonzeros Presolve removed 1 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 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%