Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:53 2012

Optimize a model with 371 rows, 85 columns and 742 nonzeros
Presolve removed 115 rows and 0 columns
Presolve time: 0.00s
Presolved: 256 rows, 85 columns, 611 nonzeros
Variable types: 0 continuous, 85 integer (85 binary)
Found heuristic solution: objective 26.0000000

Root relaxation: objective 3.150000e+01, 170 iterations, 0.00 seconds

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

     0     0   31.50000    0   61   26.00000   31.50000  21.2%     -    0s
     0     0   31.00000    0   80   26.00000   31.00000  19.2%     -    0s
     0     0   30.36842    0   79   26.00000   30.36842  16.8%     -    0s
     0     0   30.21346    0   84   26.00000   30.21346  16.2%     -    0s
     0     0   30.06682    0   83   26.00000   30.06682  15.6%     -    0s
     0     0   29.96872    0   83   26.00000   29.96872  15.3%     -    0s
     0     0   29.91067    0   85   26.00000   29.91067  15.0%     -    0s
     0     0   29.89044    0   83   26.00000   29.89044  15.0%     -    0s
     0     0   29.85600    0   83   26.00000   29.85600  14.8%     -    0s
     0     0   29.78822    0   84   26.00000   29.78822  14.6%     -    0s
     0     0   29.70652    0   85   26.00000   29.70652  14.3%     -    0s
     0     0   29.69593    0   83   26.00000   29.69593  14.2%     -    0s
     0     0   29.68258    0   83   26.00000   29.68258  14.2%     -    0s
     0     0   29.68258    0   81   26.00000   29.68258  14.2%     -    0s
H    0     0                      27.0000000   29.68258  9.94%     -    0s
     0     2   29.68258    0   81   27.00000   29.68258  9.94%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 2
  Zero half: 42

Explored 57 nodes (1932 simplex iterations) in 0.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.700000000000e+01, best bound 2.700000000000e+01, gap 0.0%