Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:07:13 2012

Optimize a model with 2268 rows, 462 columns and 7182 nonzeros
Presolve removed 1281 rows and 0 columns
Presolve time: 0.03s
Presolved: 987 rows, 462 columns, 5292 nonzeros
Variable types: 0 continuous, 462 integer (462 binary)
Found heuristic solution: objective 16.0000000

Root relaxation: objective 5.000000e+00, 1544 iterations, 0.08 seconds

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

     0     0    5.00000    0   43   16.00000    5.00000  68.8%     -    0s
H    0     0                       6.0000000    5.00000  16.7%     -    0s
     0     0    5.00000    0   67    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0   54    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0   66    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0   69    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0   45    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0   34    6.00000    5.00000  16.7%     -    1s
     0     0    5.00000    0   52    6.00000    5.00000  16.7%     -    1s
     0     0    5.00000    0   49    6.00000    5.00000  16.7%     -    1s
     0     0    5.00000    0   18    6.00000    5.00000  16.7%     -    1s
     0     0    5.00000    0   39    6.00000    5.00000  16.7%     -    1s
     0     0    5.00000    0   39    6.00000    5.00000  16.7%     -    1s
     0     2    5.00000    0   39    6.00000    5.00000  16.7%     -    2s
    20    15    5.00000   12   69    6.00000    5.00000  16.7%  1423    5s

Cutting planes:
  Gomory: 1
  Clique: 3
  Zero half: 5

Explored 31 nodes (54400 simplex iterations) in 5.59 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%