Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:02 2012

Optimize a model with 165 rows, 74 columns and 330 nonzeros
Presolve removed 52 rows and 17 columns
Presolve time: 0.00s
Presolved: 113 rows, 57 columns, 230 nonzeros
Variable types: 0 continuous, 57 integer (57 binary)
Found heuristic solution: objective 31.0000000

Root relaxation: objective 3.650000e+01, 74 iterations, 0.00 seconds

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

     0     0   36.50000    0   53   31.00000   36.50000  17.7%     -    0s
H    0     0                      33.0000000   36.50000  10.6%     -    0s
     0     0   35.00000    0   54   33.00000   35.00000  6.06%     -    0s
H    0     0                      34.0000000   35.00000  2.94%     -    0s
     0     0     cutoff    0        34.00000   34.99996  2.94%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 21

Explored 0 nodes (133 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0%