Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:26 2012

Optimize a model with 791 rows, 58 columns and 1582 nonzeros
Presolve removed 540 rows and 0 columns
Presolve time: 0.01s
Presolved: 251 rows, 58 columns, 1376 nonzeros
Variable types: 0 continuous, 58 integer (58 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.036069e+01, 133 iterations, 0.00 seconds

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

     0     0   10.36069    0   55    7.00000   10.36069  48.0%     -    0s
     0     0   10.02753    0   56    7.00000   10.02753  43.3%     -    0s
     0     0    9.95588    0   57    7.00000    9.95588  42.2%     -    0s
     0     0    9.95022    0   56    7.00000    9.95022  42.1%     -    0s
     0     0    9.94198    0   57    7.00000    9.94198  42.0%     -    0s
H    0     0                       8.0000000    9.94198  24.3%     -    0s
     0     0    9.92247    0   56    8.00000    9.92247  24.0%     -    0s
     0     0    9.91569    0   57    8.00000    9.91569  23.9%     -    0s
     0     0    9.91296    0   57    8.00000    9.91296  23.9%     -    0s
     0     2    9.91100    0   57    8.00000    9.91100  23.9%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 20
  Zero half: 10

Explored 13 nodes (810 simplex iterations) in 0.12 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%