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

Optimize a model with 163 rows, 77 columns and 326 nonzeros
Presolve removed 51 rows and 19 columns
Presolve time: 0.00s
Presolved: 112 rows, 58 columns, 230 nonzeros
Variable types: 0 continuous, 58 integer (58 binary)
Found heuristic solution: objective 34.0000000

Root relaxation: objective 3.700000e+01, 75 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   52   34.00000   37.00000  8.82%     -    0s
     0     0   36.50000    0   45   34.00000   36.50000  7.35%     -    0s
     0     0   36.15385    0   55   34.00000   36.15385  6.33%     -    0s
     0     0   35.57143    0   58   34.00000   35.57143  4.62%     -    0s
     0     0   35.33333    0   45   34.00000   35.33333  3.92%     -    0s
     0     0   35.00000    0   55   34.00000   35.00000  2.94%     -    0s
     0     0   35.00000    0   46   34.00000   35.00000  2.94%     -    0s
     0     0     cutoff    0        34.00000   34.99996  2.94%     -    0s

Cutting planes:
  Zero half: 32

Explored 0 nodes (221 simplex iterations) in 0.02 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%