Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:17:41 2012

Optimize a model with 6553 rows, 3422 columns and 22792 nonzeros
Presolve removed 815 rows and 60 columns
Presolve time: 0.18s
Presolved: 5738 rows, 3362 columns, 20622 nonzeros
Variable types: 0 continuous, 3362 integer (3362 binary)
Found heuristic solution: objective 58.0000000

Root relaxation: objective 3.000000e+00, 4077 iterations, 0.38 seconds

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

     0     0    3.00000    0   36   58.00000    3.00000  94.8%     -    2s
H    0     0                      31.0000000    3.00000  90.3%     -    2s
H    0     0                       4.0000000    3.00000  25.0%     -    2s
H    0     0                       3.0000000    3.00000   0.0%     -    2s

Explored 0 nodes (21978 simplex iterations) in 2.92 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%