Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:44 2012

Optimize a model with 227 rows, 72 columns and 454 nonzeros
Presolve removed 79 rows and 6 columns
Presolve time: 0.00s
Presolved: 148 rows, 66 columns, 334 nonzeros
Variable types: 0 continuous, 66 integer (66 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 2.900000e+01, 85 iterations, 0.00 seconds

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

     0     0   29.00000    0   52   23.00000   29.00000  26.1%     -    0s
     0     0   28.25000    0   61   23.00000   28.25000  22.8%     -    0s
     0     0   27.83333    0   62   23.00000   27.83333  21.0%     -    0s
H    0     0                      25.0000000   27.83333  11.3%     -    0s
     0     0   27.72727    0   63   25.00000   27.72727  10.9%     -    0s
     0     0   27.56522    0   64   25.00000   27.56522  10.3%     -    0s
     0     0   27.50000    0   41   25.00000   27.50000  10.0%     -    0s
H    0     0                      26.0000000   27.50000  5.77%     -    0s
     0     0   27.49206    0   66   26.00000   27.49206  5.74%     -    0s
     0     0   27.49206    0   66   26.00000   27.49206  5.74%     -    0s
     0     2   27.49206    0   66   26.00000   27.49206  5.74%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 21

Explored 6 nodes (288 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.600000000000e+01, best bound 2.600000000000e+01, gap 0.0%