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

Optimize a model with 269 rows, 74 columns and 538 nonzeros
Presolve removed 70 rows and 0 columns
Presolve time: 0.00s
Presolved: 199 rows, 74 columns, 455 nonzeros
Variable types: 0 continuous, 74 integer (74 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 3.000000e+01, 118 iterations, 0.00 seconds

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

     0     0   30.00000    0   52   23.00000   30.00000  30.4%     -    0s
H    0     0                      24.0000000   30.00000  25.0%     -    0s
H    0     0                      25.0000000   30.00000  20.0%     -    0s
     0     0   29.36364    0   71   25.00000   29.36364  17.5%     -    0s
     0     0   28.89286    0   71   25.00000   28.89286  15.6%     -    0s
     0     0   28.65823    0   71   25.00000   28.65823  14.6%     -    0s
     0     0   28.36364    0   73   25.00000   28.36364  13.5%     -    0s
     0     0   28.18750    0   73   25.00000   28.18750  12.7%     -    0s
     0     0   28.09859    0   71   25.00000   28.09859  12.4%     -    0s
     0     0   28.09375    0   72   25.00000   28.09375  12.4%     -    0s
     0     0   28.09375    0   71   25.00000   28.09375  12.4%     -    0s
     0     2   28.09023    0   71   25.00000   28.09023  12.4%     -    0s
*   23     8               3      26.0000000   28.00000  7.69%  13.6    0s

Cutting planes:
  Zero half: 28

Explored 42 nodes (937 simplex iterations) in 0.05 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%