Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:27 2012

Optimize a model with 829 rows, 58 columns and 1658 nonzeros
Presolve removed 557 rows and 0 columns
Presolve time: 0.01s
Presolved: 272 rows, 58 columns, 1553 nonzeros
Variable types: 0 continuous, 58 integer (58 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 9.887454e+00, 146 iterations, 0.00 seconds

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

     0     0    9.88745    0   55    6.00000    9.88745  64.8%     -    0s
H    0     0                       7.0000000    9.88745  41.2%     -    0s
     0     0    9.66618    0   55    7.00000    9.66618  38.1%     -    0s
H    0     0                       8.0000000    9.66618  20.8%     -    0s
     0     0    9.62117    0   54    8.00000    9.62117  20.3%     -    0s
     0     0    9.56405    0   53    8.00000    9.56405  19.6%     -    0s
     0     0    9.50579    0   55    8.00000    9.50579  18.8%     -    0s
     0     0    9.48513    0   55    8.00000    9.48513  18.6%     -    0s
     0     0    9.47202    0   57    8.00000    9.47202  18.4%     -    0s
     0     0    9.46775    0   56    8.00000    9.46775  18.3%     -    0s
     0     0    9.46267    0   57    8.00000    9.46267  18.3%     -    0s
     0     0    9.46221    0   56    8.00000    9.46221  18.3%     -    0s
     0     0    9.45840    0   56    8.00000    9.45840  18.2%     -    0s
     0     2    9.45638    0   56    8.00000    9.45638  18.2%     -    0s

Cutting planes:
  Clique: 16
  Zero half: 14

Explored 7 nodes (603 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%