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

Optimize a model with 174 rows, 79 columns and 348 nonzeros
Presolve removed 42 rows and 9 columns
Presolve time: 0.00s
Presolved: 132 rows, 70 columns, 275 nonzeros
Variable types: 0 continuous, 70 integer (70 binary)
Found heuristic solution: objective 31.0000000

Root relaxation: objective 3.750000e+01, 90 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   63   31.00000   37.50000  21.0%     -    0s
H    0     0                      33.0000000   37.50000  13.6%     -    0s
     0     0   36.57143    0   67   33.00000   36.57143  10.8%     -    0s
H    0     0                      35.0000000   36.57143  4.49%     -    0s
     0     0   36.37500    0   65   35.00000   36.37500  3.93%     -    0s
     0     0   36.26786    0   69   35.00000   36.26786  3.62%     -    0s
     0     0     cutoff    0        35.00000   35.99996  2.86%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 26

Explored 0 nodes (208 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%