Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:45:38 2012

Optimize a model with 1903 rows, 88 columns and 3806 nonzeros
Presolve removed 1362 rows and 0 columns
Presolve time: 0.04s
Presolved: 541 rows, 88 columns, 3458 nonzeros
Variable types: 0 continuous, 88 integer (88 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.324476e+01, 313 iterations, 0.01 seconds

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

     0     0   13.24476    0   84    7.00000   13.24476  89.2%     -    0s
     0     0   12.88277    0   86    7.00000   12.88277  84.0%     -    0s
H    0     0                       8.0000000   12.88277  61.0%     -    0s
     0     0   12.82417    0   87    8.00000   12.82417  60.3%     -    0s
     0     0   12.80895    0   86    8.00000   12.80895  60.1%     -    0s
H    0     0                       9.0000000   12.80895  42.3%     -    0s
     0     0   12.78638    0   85    9.00000   12.78638  42.1%     -    0s
     0     0   12.77878    0   85    9.00000   12.77878  42.0%     -    0s
     0     0   12.77466    0   86    9.00000   12.77466  41.9%     -    0s
     0     0   12.77198    0   87    9.00000   12.77198  41.9%     -    0s
     0     0   12.76890    0   87    9.00000   12.76890  41.9%     -    0s
     0     0   12.76841    0   87    9.00000   12.76841  41.9%     -    0s
     0     0   12.76831    0   87    9.00000   12.76831  41.9%     -    0s
     0     2   12.76606    0   87    9.00000   12.76606  41.8%     -    0s

Cutting planes:
  Clique: 47
  Zero half: 8

Explored 67 nodes (4339 simplex iterations) in 0.90 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%