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

Optimize a model with 271 rows, 70 columns and 542 nonzeros
Presolve removed 89 rows and 0 columns
Presolve time: 0.00s
Presolved: 182 rows, 70 columns, 431 nonzeros
Variable types: 0 continuous, 70 integer (70 binary)
Found heuristic solution: objective 22.0000000

Root relaxation: objective 2.718182e+01, 131 iterations, 0.00 seconds

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

     0     0   27.18182    0   65   22.00000   27.18182  23.6%     -    0s
H    0     0                      23.0000000   27.18182  18.2%     -    0s
H    0     0                      24.0000000   27.18182  13.3%     -    0s
     0     0   26.66667    0   60   24.00000   26.66667  11.1%     -    0s
H    0     0                      25.0000000   26.66667  6.67%     -    0s
     0     0   26.38889    0   66   25.00000   26.38889  5.56%     -    0s
     0     0   26.20442    0   68   25.00000   26.20442  4.82%     -    0s
     0     0     cutoff    0        25.00000   25.99997  4.00%     -    0s

Cutting planes:
  Zero half: 51

Explored 0 nodes (278 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%