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

Optimize a model with 182 rows, 81 columns and 364 nonzeros
Presolve removed 70 rows and 20 columns
Presolve time: 0.00s
Presolved: 112 rows, 61 columns, 233 nonzeros
Variable types: 0 continuous, 61 integer (61 binary)
Found heuristic solution: objective 34.0000000

Root relaxation: objective 3.850000e+01, 71 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   51   34.00000   38.50000  13.2%     -    0s
H    0     0                      35.0000000   38.50000  10.0%     -    0s
     0     0   37.00000    0   39   35.00000   37.00000  5.71%     -    0s
H    0     0                      36.0000000   37.00000  2.78%     -    0s
     0     0   37.00000    0   41   36.00000   37.00000  2.78%     -    0s
*    0     0               0      37.0000000   37.00000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 15

Explored 0 nodes (169 simplex iterations) in 0.01 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%