Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:50:01 2013

Optimize a model with 31 rows, 60 columns and 118 nonzeros
Presolve removed 29 rows and 45 columns
Presolve time: 0.00s
Presolved: 2 rows, 15 columns, 30 nonzeros
Variable types: 15 continuous, 0 integer (0 binary)

Root relaxation: objective 6.680000e+03, 1 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

*    0     0               0    6680.0000000 6680.00000   0.0%     -    0s

Explored 0 nodes (1 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.680000000000e+03, best bound 6.680000000000e+03, gap 0.0%