Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:49:35 2012

Optimize a model with 564 rows, 105 columns and 1128 nonzeros
Presolve removed 202 rows and 0 columns
Presolve time: 0.00s
Presolved: 362 rows, 105 columns, 908 nonzeros
Variable types: 0 continuous, 105 integer (105 binary)
Found heuristic solution: objective 24.0000000

Root relaxation: objective 3.753333e+01, 268 iterations, 0.00 seconds

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

     0     0   37.53333    0  103   24.00000   37.53333  56.4%     -    0s
H    0     0                      27.0000000   37.53333  39.0%     -    0s
     0     0   36.80000    0  101   27.00000   36.80000  36.3%     -    0s
     0     0   36.23830    0  105   27.00000   36.23830  34.2%     -    0s
H    0     0                      28.0000000   36.23830  29.4%     -    0s
     0     0   35.92536    0  102   28.00000   35.92536  28.3%     -    0s
     0     0   35.86667    0  105   28.00000   35.86667  28.1%     -    0s
H    0     0                      29.0000000   35.86667  23.7%     -    0s
     0     0   35.70267    0  104   29.00000   35.70267  23.1%     -    0s
     0     0   35.57124    0  103   29.00000   35.57124  22.7%     -    0s
     0     0   35.45084    0  105   29.00000   35.45084  22.2%     -    0s
     0     0   35.42739    0  104   29.00000   35.42739  22.2%     -    0s
     0     0   35.41574    0  104   29.00000   35.41574  22.1%     -    0s
     0     0   35.41574    0  104   29.00000   35.41574  22.1%     -    0s
     0     2   35.41419    0  104   29.00000   35.41419  22.1%     -    0s
*   23    11               6      30.0000000   35.29282  17.6%  35.7    0s

Cutting planes:
  Zero half: 62

Explored 604 nodes (15218 simplex iterations) in 0.53 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%