Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:50:35 2012

Optimize a model with 621 rows, 110 columns and 1242 nonzeros
Presolve removed 245 rows and 0 columns
Presolve time: 0.00s
Presolved: 376 rows, 110 columns, 962 nonzeros
Variable types: 0 continuous, 110 integer (110 binary)
Found heuristic solution: objective 29.0000000

Root relaxation: objective 3.775536e+01, 239 iterations, 0.00 seconds

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

     0     0   37.75536    0  105   29.00000   37.75536  30.2%     -    0s
     0     0   37.03334    0  107   29.00000   37.03334  27.7%     -    0s
     0     0   36.88337    0  106   29.00000   36.88337  27.2%     -    0s
H    0     0                      31.0000000   36.88337  19.0%     -    0s
     0     0   36.78641    0  108   31.00000   36.78641  18.7%     -    0s
     0     0   36.71878    0  110   31.00000   36.71878  18.4%     -    0s
H    0     0                      32.0000000   36.71878  14.7%     -    0s
     0     0   36.56655    0  109   32.00000   36.56655  14.3%     -    0s
     0     0   36.47975    0  108   32.00000   36.47975  14.0%     -    0s
     0     0   36.41928    0  108   32.00000   36.41928  13.8%     -    0s
     0     0   36.30873    0  109   32.00000   36.30873  13.5%     -    0s
     0     0   36.20050    0  109   32.00000   36.20050  13.1%     -    0s
     0     0   36.18793    0  108   32.00000   36.18793  13.1%     -    0s
     0     0   36.18793    0  108   32.00000   36.18793  13.1%     -    0s
     0     0   36.18793    0  108   32.00000   36.18793  13.1%     -    0s
     0     2   36.18568    0  108   32.00000   36.18568  13.1%     -    0s

Cutting planes:
  Clique: 5
  Zero half: 45

Explored 199 nodes (6591 simplex iterations) in 0.31 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.200000000000e+01, best bound 3.200000000000e+01, gap 0.0%