Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:13:30 2012 Optimize a model with 13 rows, 51 columns and 81 nonzeros Presolve removed 13 rows and 51 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 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%