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

Optimize a model with 180 rows, 81 columns and 360 nonzeros
Presolve removed 65 rows and 18 columns
Presolve time: 0.00s
Presolved: 115 rows, 63 columns, 239 nonzeros
Variable types: 0 continuous, 63 integer (63 binary)
Found heuristic solution: objective 35.0000000

Root relaxation: objective 3.800000e+01, 76 iterations, 0.00 seconds

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

     0     0   38.00000    0   54   35.00000   38.00000  8.57%     -    0s
     0     0   37.00000    0   58   35.00000   37.00000  5.71%     -    0s
H    0     0                      36.0000000   37.00000  2.78%     -    0s
     0     0   37.00000    0   47   36.00000   37.00000  2.78%     -    0s
     0     0     cutoff    0        36.00000   36.99996  2.78%     -    0s

Cutting planes:
  Zero half: 35

Explored 0 nodes (193 simplex iterations) in 0.01 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%