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

Optimize a model with 114 rows, 72 columns and 228 nonzeros
Presolve removed 54 rows and 30 columns
Presolve time: 0.00s
Presolved: 60 rows, 42 columns, 123 nonzeros
Variable types: 0 continuous, 42 integer (42 binary)
Found heuristic solution: objective 33.0000000

Root relaxation: objective 3.700000e+01, 50 iterations, 0.00 seconds

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

     0     0   37.00000    0   39   33.00000   37.00000  12.1%     -    0s
H    0     0                      36.0000000   37.00000  2.78%     -    0s
     0     0 infeasible    0        36.00000   36.99996  2.78%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 22

Explored 0 nodes (68 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.600000000000e+01, best bound 3.600000000000e+01, gap 0.0%