Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:20:02 2012

Optimize a model with 4644 rows, 756 columns and 14580 nonzeros
Presolve time: 0.05s
Presolved: 4644 rows, 756 columns, 21708 nonzeros
Variable types: 0 continuous, 756 integer (756 binary)
Found heuristic solution: objective 11.0000000

Root relaxation: objective 2.000000e+00, 1872 iterations, 0.08 seconds

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

     0     0    2.00000    0   54   11.00000    2.00000  81.8%     -    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
     0     0    2.00000    0   54    7.00000    2.00000  71.4%     -    0s
     0     0    2.00000    0   54    7.00000    2.00000  71.4%     -    0s
     0     0    2.27273    0   99    7.00000    2.27273  67.5%     -    0s
     0     0    2.76923    0   92    7.00000    2.76923  60.4%     -    1s
H    0     0                       6.0000000    2.76923  53.8%     -    1s
     0     0    3.38636    0  132    6.00000    3.38636  43.6%     -    1s
     0     0    4.02439    0   98    6.00000    4.02439  32.9%     -    1s
     0     0    4.46609    0  140    6.00000    4.46609  25.6%     -    1s
     0     0    5.00000    0  143    6.00000    5.00000  16.7%     -    1s

Cutting planes:
  Clique: 319
  Zero half: 17

Explored 0 nodes (10582 simplex iterations) in 2.07 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%