Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:45:11 2012

Optimize a model with 1809 rows, 85 columns and 3618 nonzeros
Presolve removed 1289 rows and 0 columns
Presolve time: 0.05s
Presolved: 520 rows, 85 columns, 3407 nonzeros
Variable types: 0 continuous, 85 integer (85 binary)
Found heuristic solution: objective 8.0000000

Root relaxation: objective 1.276495e+01, 284 iterations, 0.01 seconds

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

     0     0   12.76495    0   77    8.00000   12.76495  59.6%     -    0s
     0     0   12.15025    0   82    8.00000   12.15025  51.9%     -    0s
     0     0   12.06468    0   85    8.00000   12.06468  50.8%     -    0s
     0     0   12.02880    0   84    8.00000   12.02880  50.4%     -    0s
     0     0   12.01319    0   84    8.00000   12.01319  50.2%     -    0s
     0     0   11.99845    0   84    8.00000   11.99845  50.0%     -    0s
     0     0   11.99496    0   84    8.00000   11.99496  49.9%     -    0s
     0     0   11.98456    0   85    8.00000   11.98456  49.8%     -    0s
     0     0   11.95063    0   85    8.00000   11.95063  49.4%     -    0s
     0     0   11.93716    0   85    8.00000   11.93716  49.2%     -    0s
     0     0   11.93400    0   85    8.00000   11.93400  49.2%     -    0s
     0     0   11.93383    0   85    8.00000   11.93383  49.2%     -    0s
     0     0   11.93383    0   85    8.00000   11.93383  49.2%     -    0s
     0     2   11.93333    0   85    8.00000   11.93333  49.2%     -    0s

Cutting planes:
  Clique: 68

Explored 103 nodes (5986 simplex iterations) in 1.01 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%