Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:35 2012

Optimize a model with 52 rows, 31 columns and 104 nonzeros
Presolve removed 52 rows and 31 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 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%