Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:16:11 2013 Optimize a model with 16 rows, 18 columns and 37 nonzeros Presolve removed 16 rows and 18 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 2.146538238692e+03, best bound 2.146538238692e+03, gap 0.0%