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

Optimize a model with 139 rows, 71 columns and 278 nonzeros
Presolve removed 34 rows and 12 columns
Presolve time: 0.00s
Presolved: 105 rows, 59 columns, 215 nonzeros
Variable types: 0 continuous, 59 integer (59 binary)
Found heuristic solution: objective 29.0000000

Root relaxation: objective 3.500000e+01, 77 iterations, 0.00 seconds

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

     0     0   35.00000    0   52   29.00000   35.00000  20.7%     -    0s
H    0     0                      31.0000000   35.00000  12.9%     -    0s
     0     0   34.50000    0   51   31.00000   34.50000  11.3%     -    0s
H    0     0                      32.0000000   34.50000  7.81%     -    0s
     0     0   34.16667    0   59   32.00000   34.16667  6.77%     -    0s
H    0     0                      34.0000000   34.16667  0.49%     -    0s

Cutting planes:
  Zero half: 7

Explored 0 nodes (163 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0%