Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:49:57 2013

Optimize a model with 20 rows, 20 columns and 39 nonzeros
Presolve removed 20 rows and 20 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 6.580000000000e+03, best bound 6.580000000000e+03, gap 0.0%