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

Optimize a model with 291 rows, 78 columns and 582 nonzeros
Presolve removed 103 rows and 4 columns
Presolve time: 0.00s
Presolved: 188 rows, 74 columns, 438 nonzeros
Variable types: 0 continuous, 74 integer (74 binary)
Found heuristic solution: objective 25.0000000

Root relaxation: objective 3.050000e+01, 103 iterations, 0.00 seconds

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

     0     0   30.50000    0   49   25.00000   30.50000  22.0%     -    0s
     0     0   30.00000    0   59   25.00000   30.00000  20.0%     -    0s
     0     0   29.87500    0   69   25.00000   29.87500  19.5%     -    0s
H    0     0                      26.0000000   29.87500  14.9%     -    0s
     0     0   29.33333    0   70   26.00000   29.33333  12.8%     -    0s
     0     0   29.16438    0   71   26.00000   29.16438  12.2%     -    0s
     0     0   29.01205    0   72   26.00000   29.01205  11.6%     -    0s
     0     0   28.99561    0   71   26.00000   28.99561  11.5%     -    0s
     0     0   28.97348    0   72   26.00000   28.97348  11.4%     -    0s
     0     0   28.95000    0   71   26.00000   28.95000  11.3%     -    0s
     0     0   28.93182    0   73   26.00000   28.93182  11.3%     -    0s
     0     0   28.93182    0   72   26.00000   28.93182  11.3%     -    0s
     0     2   28.90000    0   70   26.00000   28.90000  11.2%     -    0s
H   33     3                      27.0000000   28.00000  3.70%  16.5    0s

Cutting planes:
  Gomory: 1
  Clique: 2
  Zero half: 34

Explored 37 nodes (1082 simplex iterations) in 0.05 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%