Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:03 2012

Optimize a model with 169 rows, 78 columns and 338 nonzeros
Presolve removed 36 rows and 9 columns
Presolve time: 0.00s
Presolved: 133 rows, 69 columns, 273 nonzeros
Variable types: 0 continuous, 69 integer (69 binary)
Found heuristic solution: objective 32.0000000

Root relaxation: objective 3.750000e+01, 94 iterations, 0.00 seconds

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

     0     0   37.50000    0   61   32.00000   37.50000  17.2%     -    0s
     0     0   36.75000    0   48   32.00000   36.75000  14.8%     -    0s
H    0     0                      35.0000000   36.75000  5.00%     -    0s
     0     0   36.33333    0   61   35.00000   36.33333  3.81%     -    0s
     0     0     cutoff    0        35.00000   35.99996  2.86%     -    0s

Cutting planes:
  Zero half: 47

Explored 0 nodes (172 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.500000000000e+01, best bound 3.500000000000e+01, gap 0.0%