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

Optimize a model with 215 rows, 68 columns and 430 nonzeros
Presolve removed 66 rows and 4 columns
Presolve time: 0.00s
Presolved: 149 rows, 64 columns, 335 nonzeros
Variable types: 0 continuous, 64 integer (64 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 2.800000e+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   28.00000    0   48   23.00000   28.00000  21.7%     -    0s
     0     0   27.00000    0   59   23.00000   27.00000  17.4%     -    0s
H    0     0                      24.0000000   27.00000  12.5%     -    0s
H    0     0                      26.0000000   27.00000  3.85%     -    0s
     0     0   27.00000    0   57   26.00000   27.00000  3.85%     -    0s
     0     0   27.00000    0   48   26.00000   27.00000  3.85%     -    0s
     0     0     cutoff    0        26.00000   26.99997  3.85%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 40

Explored 0 nodes (221 simplex iterations) in 0.01 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%