Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:26:32 2012

Optimize a model with 8693 rows, 4830 columns and 30565 nonzeros
Presolve removed 830 rows and 2 columns
Presolve time: 0.31s
Presolved: 7932 rows, 4828 columns, 33097 nonzeros
Variable types: 0 continuous, 4828 integer (4828 binary)
Found heuristic solution: objective 68.0000000

Root relaxation: objective 3.000000e+00, 4504 iterations, 0.41 seconds

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

     0     0    3.00000    0   34   68.00000    3.00000  95.6%     -    3s
H    0     0                      52.0000000    3.00000  94.2%     -    3s
H    0     0                       5.0000000    3.00000  40.0%     -    3s
     0     0    3.00000    0   57    5.00000    3.00000  40.0%     -    3s
H    0     0                       3.0000000    3.00000   0.0%     -    3s

Cutting planes:
  Gomory: 1
  Zero half: 2

Explored 0 nodes (24701 simplex iterations) in 3.85 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%