Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:04 2012

Optimize a model with 185 rows, 81 columns and 370 nonzeros
Presolve removed 54 rows and 12 columns
Presolve time: 0.00s
Presolved: 131 rows, 69 columns, 268 nonzeros
Variable types: 0 continuous, 69 integer (69 binary)
Found heuristic solution: objective 32.0000000

Root relaxation: objective 3.850000e+01, 87 iterations, 0.00 seconds

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

     0     0   38.50000    0   59   32.00000   38.50000  20.3%     -    0s
H    0     0                      33.0000000   38.50000  16.7%     -    0s
H    0     0                      34.0000000   38.50000  13.2%     -    0s
     0     0   37.00000    0   48   34.00000   37.00000  8.82%     -    0s
     0     0   36.66667    0   67   34.00000   36.66667  7.84%     -    0s
H    0     0                      35.0000000   36.66667  4.76%     -    0s
     0     0   36.50000    0   39   35.00000   36.50000  4.29%     -    0s
     0     0   36.50000    0   51   35.00000   36.50000  4.29%     -    0s
     0     0   36.50000    0   39   35.00000   36.50000  4.29%     -    0s
H    0     0                      36.0000000   36.50000  1.39%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 10

Explored 0 nodes (267 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.600000000000e+01, best bound 3.600000000000e+01, gap 0.0%