Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:57:19 2012

Optimize a model with 19711 rows, 23870 columns and 82234 nonzeros
Presolve removed 337 rows and 4160 columns
Presolve time: 0.42s
Presolved: 19374 rows, 19710 columns, 77054 nonzeros
Variable types: 0 continuous, 19710 integer (19710 binary)
Found heuristic solution: objective 154.0000000

Root relaxation: objective 3.000000e+00, 15670 iterations, 1.67 seconds
Total elapsed time = 6.23s

    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 (36277 simplex iterations) in 6.79 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%