Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:45 2012

Optimize a model with 265 rows, 74 columns and 530 nonzeros
Presolve removed 87 rows and 2 columns
Presolve time: 0.00s
Presolved: 178 rows, 72 columns, 413 nonzeros
Variable types: 0 continuous, 72 integer (72 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 2.950000e+01, 116 iterations, 0.00 seconds

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

     0     0   29.50000    0   49   23.00000   29.50000  28.3%     -    0s
H    0     0                      25.0000000   29.50000  18.0%     -    0s
     0     0   28.80545    0   67   25.00000   28.80545  15.2%     -    0s
H    0     0                      27.0000000   28.80545  6.69%     -    0s
     0     0   28.16667    0   64   27.00000   28.16667  4.32%     -    0s
     0     0   28.04819    0   66   27.00000   28.04819  3.88%     -    0s
     0     0     cutoff    0        27.00000   27.99997  3.70%     -    0s

Cutting planes:
  Clique: 1
  Zero half: 30

Explored 0 nodes (270 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.700000000000e+01, best bound 2.700000000000e+01, gap 0.0%