Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:45:03 2012

Optimize a model with 1762 rows, 84 columns and 3524 nonzeros
Presolve removed 1300 rows and 0 columns
Presolve time: 0.05s
Presolved: 462 rows, 84 columns, 3090 nonzeros
Variable types: 0 continuous, 84 integer (84 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.249644e+01, 280 iterations, 0.01 seconds

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

     0     0   12.49644    0   77    7.00000   12.49644  78.5%     -    0s
H    0     0                       8.0000000   12.49644  56.2%     -    0s
     0     0   12.01580    0   80    8.00000   12.01580  50.2%     -    0s
     0     0   11.93034    0   79    8.00000   11.93034  49.1%     -    0s
     0     0   11.83944    0   81    8.00000   11.83944  48.0%     -    0s
     0     0   11.80107    0   81    8.00000   11.80107  47.5%     -    0s
     0     0   11.79624    0   82    8.00000   11.79624  47.5%     -    0s
     0     0   11.79535    0   82    8.00000   11.79535  47.4%     -    0s
     0     0   11.79440    0   82    8.00000   11.79440  47.4%     -    0s
     0     2   11.79015    0   82    8.00000   11.79015  47.4%     -    0s
*   54    16               6       9.0000000   11.24177  24.9%  45.9    0s

Cutting planes:
  Clique: 64

Explored 71 nodes (3519 simplex iterations) in 0.54 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%