Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:49 2012

Optimize a model with 1652 rows, 82 columns and 3304 nonzeros
Presolve removed 1161 rows and 0 columns
Presolve time: 0.04s
Presolved: 491 rows, 82 columns, 3087 nonzeros
Variable types: 0 continuous, 82 integer (82 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.239057e+01, 320 iterations, 0.01 seconds

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

     0     0   12.39057    0   77    6.00000   12.39057   107%     -    0s
H    0     0                       7.0000000   12.39057  77.0%     -    0s
     0     0   12.17061    0   79    7.00000   12.17061  73.9%     -    0s
     0     0   12.10451    0   80    7.00000   12.10451  72.9%     -    0s
H    0     0                       8.0000000   12.10451  51.3%     -    0s
     0     0   12.08750    0   79    8.00000   12.08750  51.1%     -    0s
     0     0   12.07129    0   80    8.00000   12.07129  50.9%     -    0s
     0     0   12.06925    0   80    8.00000   12.06925  50.9%     -    0s
     0     0   12.06844    0   80    8.00000   12.06844  50.9%     -    0s
     0     2   12.06701    0   80    8.00000   12.06701  50.8%     -    0s

Cutting planes:
  Clique: 30
  Zero half: 9

Explored 133 nodes (6184 simplex iterations) in 0.68 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%