Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:45 2013

Optimize a model with 7046 rows, 6786 columns and 27066 nonzeros
Presolve removed 226 rows and 0 columns
Presolve time: 0.04s
Presolved: 6820 rows, 6786 columns, 26614 nonzeros
Variable types: 6760 continuous, 26 integer (26 binary)

Root relaxation: objective 3.183100e+04, 1115 iterations, 0.04 seconds

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

*    0     0               0    31831.000000 31831.0000   0.0%     -    0s

Explored 0 nodes (1115 simplex iterations) in 0.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.183100000000e+04, best bound 3.183100000000e+04, gap 0.0%