Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:20:05 2012

Optimize a model with 4833 rows, 756 columns and 15147 nonzeros
Presolve time: 0.05s
Presolved: 4833 rows, 756 columns, 22537 nonzeros
Variable types: 0 continuous, 756 integer (756 binary)
Found heuristic solution: objective 12.0000000

Root relaxation: objective 2.000000e+00, 547 iterations, 0.02 seconds

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

     0     0    2.00000    0   54   12.00000    2.00000  83.3%     -    0s
H    0     0                       9.0000000    2.00000  77.8%     -    0s
H    0     0                       8.0000000    2.00000  75.0%     -    0s
     0     0    2.00000    0   54    8.00000    2.00000  75.0%     -    0s
H    0     0                       7.0000000    2.00000  71.4%     -    0s
     0     0    2.00000    0   54    7.00000    2.00000  71.4%     -    0s
H    0     0                       6.0000000    2.00000  66.7%     -    0s
     0     0    2.00000    0   54    6.00000    2.00000  66.7%     -    0s
     0     0    2.00000    0   54    6.00000    2.00000  66.7%     -    0s
     0     0    2.00000    0   54    6.00000    2.00000  66.7%     -    1s
     0     2    2.00000    0   54    6.00000    2.00000  66.7%     -    1s
    84    24    5.00000    5  150    6.00000    4.00000  33.3%   355    5s
   142    18     cutoff    6         6.00000    4.50000  25.0%   449   10s

Cutting planes:
  Clique: 359
  Zero half: 21

Explored 311 nodes (88131 simplex iterations) in 12.36 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%