Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:05:24 2012

Optimize a model with 21090 rows, 26082 columns and 88548 nonzeros
Presolve removed 357 rows and 5315 columns
Presolve time: 0.49s
Presolved: 20733 rows, 20767 columns, 82172 nonzeros
Variable types: 0 continuous, 20767 integer (20767 binary)
Found heuristic solution: objective 161.0000000

Root relaxation: objective 3.000000e+00, 12134 iterations, 1.29 seconds
Total elapsed time = 5.75s

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

*    0     0               0       3.0000000    3.00000   0.0%     -    6s

Explored 0 nodes (37023 simplex iterations) in 6.84 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%