Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:05 2012

Optimize a model with 205 rows, 86 columns and 410 nonzeros
Presolve removed 52 rows and 12 columns
Presolve time: 0.00s
Presolved: 153 rows, 74 columns, 318 nonzeros
Variable types: 0 continuous, 74 integer (74 binary)
Found heuristic solution: objective 35.0000000

Root relaxation: objective 4.050000e+01, 91 iterations, 0.00 seconds

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

     0     0   40.50000    0   61   35.00000   40.50000  15.7%     -    0s
     0     0   38.75000    0   58   35.00000   38.75000  10.7%     -    0s
     0     0   38.66667    0   69   35.00000   38.66667  10.5%     -    0s
H    0     0                      37.0000000   38.66667  4.50%     -    0s
     0     0   38.00000    0   68   37.00000   38.00000  2.70%     -    0s
     0     0     cutoff    0        37.00000   37.99996  2.70%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 35

Explored 0 nodes (227 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0%