Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:43 2012

Optimize a model with 226 rows, 69 columns and 452 nonzeros
Presolve removed 59 rows and 2 columns
Presolve time: 0.00s
Presolved: 167 rows, 67 columns, 372 nonzeros
Variable types: 0 continuous, 67 integer (67 binary)
Found heuristic solution: objective 21.0000000

Root relaxation: objective 2.750000e+01, 99 iterations, 0.00 seconds

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

     0     0   27.50000    0   53   21.00000   27.50000  31.0%     -    0s
H    0     0                      24.0000000   27.50000  14.6%     -    0s
     0     0   27.00000    0   52   24.00000   27.00000  12.5%     -    0s
     0     0   26.75000    0   55   24.00000   26.75000  11.5%     -    0s
     0     0   26.57143    0   63   24.00000   26.57143  10.7%     -    0s
     0     0   26.40000    0   59   24.00000   26.40000  10.0%     -    0s
H    0     0                      25.0000000   26.40000  5.60%     -    0s
     0     0   26.35714    0   63   25.00000   26.35714  5.43%     -    0s
     0     0   26.25000    0   64   25.00000   26.25000  5.00%     -    0s
     0     0   26.11842    0   62   25.00000   26.11842  4.47%     -    0s
     0     0     cutoff    0        25.00000   25.99997  4.00%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 32

Explored 0 nodes (346 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.500000000000e+01, best bound 2.500000000000e+01, gap 0.0%