Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:45:55 2012

Optimize a model with 1989 rows, 90 columns and 3978 nonzeros
Presolve removed 1391 rows and 0 columns
Presolve time: 0.05s
Presolved: 598 rows, 90 columns, 3930 nonzeros
Variable types: 0 continuous, 90 integer (90 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.333077e+01, 334 iterations, 0.01 seconds

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

     0     0   13.33077    0   87    6.00000   13.33077   122%     -    0s
H    0     0                       7.0000000   13.33077  90.4%     -    0s
H    0     0                       8.0000000   13.33077  66.6%     -    0s
     0     0   12.98097    0   89    8.00000   12.98097  62.3%     -    0s
     0     0   12.88023    0   89    8.00000   12.88023  61.0%     -    0s
     0     0   12.81843    0   89    8.00000   12.81843  60.2%     -    0s
     0     0   12.78988    0   87    8.00000   12.78988  59.9%     -    0s
     0     0   12.78376    0   88    8.00000   12.78376  59.8%     -    0s
     0     0   12.77243    0   88    8.00000   12.77243  59.7%     -    0s
     0     0   12.76811    0   89    8.00000   12.76811  59.6%     -    0s
     0     0   12.76772    0   89    8.00000   12.76772  59.6%     -    0s
     0     2   12.76646    0   89    8.00000   12.76646  59.6%     -    0s
*  228     6               9       9.0000000   10.24605  13.8%  43.8    1s

Cutting planes:
  Clique: 61

Explored 235 nodes (10705 simplex iterations) in 1.29 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%