Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:25 2012

Optimize a model with 825 rows, 58 columns and 1650 nonzeros
Presolve removed 584 rows and 0 columns
Presolve time: 0.01s
Presolved: 241 rows, 58 columns, 1413 nonzeros
Variable types: 0 continuous, 58 integer (58 binary)
Found heuristic solution: objective 8.0000000

Root relaxation: objective 9.827861e+00, 126 iterations, 0.00 seconds

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

     0     0    9.82786    0   54    8.00000    9.82786  22.8%     -    0s
     0     0    9.64937    0   57    8.00000    9.64937  20.6%     -    0s
     0     0    9.57700    0   57    8.00000    9.57700  19.7%     -    0s
     0     0    9.53833    0   57    8.00000    9.53833  19.2%     -    0s
     0     0    9.53352    0   57    8.00000    9.53352  19.2%     -    0s
     0     0    9.52697    0   56    8.00000    9.52697  19.1%     -    0s
     0     0    9.52467    0   54    8.00000    9.52467  19.1%     -    0s
     0     0    9.51707    0   57    8.00000    9.51707  19.0%     -    0s
     0     0    9.51654    0   57    8.00000    9.51654  19.0%     -    0s
     0     2    9.51441    0   57    8.00000    9.51441  18.9%     -    0s

Cutting planes:
  Clique: 18
  Zero half: 11

Explored 7 nodes (577 simplex iterations) in 0.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%