Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:06:41 2012

Optimize a model with 1547 rows, 342 columns and 4894 nonzeros
Presolve removed 902 rows and 2 columns
Presolve time: 0.03s
Presolved: 663 rows, 340 columns, 3634 nonzeros
Variable types: 0 continuous, 340 integer (340 binary)
Found heuristic solution: objective 18.0000000

Root relaxation: objective 5.000000e+00, 1533 iterations, 0.07 seconds

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

     0     0    5.00000    0   53   18.00000    5.00000  72.2%     -    0s
H    0     0                       6.0000000    5.00000  16.7%     -    0s
     0     0    5.00000    0   90    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0   16    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0   35    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0   42    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   84    6.00000    5.00000  16.7%     -    0s
     0     0    5.00000    0   72    6.00000    5.00000  16.7%     -    0s
     0     2    5.00000    0   50    6.00000    5.00000  16.7%     -    0s

Cutting planes:
  Gomory: 10
  Clique: 4
  Zero half: 21

Explored 27 nodes (23903 simplex iterations) in 2.78 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%