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

Optimize a model with 264 rows, 72 columns and 528 nonzeros
Presolve removed 78 rows and 1 columns
Presolve time: 0.00s
Presolved: 186 rows, 71 columns, 418 nonzeros
Variable types: 0 continuous, 71 integer (71 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 2.866667e+01, 128 iterations, 0.00 seconds

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

     0     0   28.66667    0   63   23.00000   28.66667  24.6%     -    0s
H    0     0                      25.0000000   28.66667  14.7%     -    0s
     0     0   27.90000    0   70   25.00000   27.90000  11.6%     -    0s
     0     0   27.50794    0   69   25.00000   27.50794  10.0%     -    0s
     0     0   27.28571    0   62   25.00000   27.28571  9.14%     -    0s
H    0     0                      26.0000000   27.28571  4.95%     -    0s
     0     0   27.15385    0   66   26.00000   27.15385  4.44%     -    0s
     0     0     cutoff    0        26.00000   26.99997  3.85%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 30

Explored 0 nodes (343 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%