Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:08 2013 Optimize a model with 1014 rows, 1012 columns and 4021 nonzeros Presolve removed 1014 rows and 1012 columns Presolve time: 0.03s Explored 0 nodes (0 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.887596605943e+03, best bound 3.887596605943e+03, gap 0.0%