Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:46 2012

Optimize a model with 282 rows, 75 columns and 564 nonzeros
Presolve removed 86 rows and 0 columns
Presolve time: 0.00s
Presolved: 196 rows, 75 columns, 458 nonzeros
Variable types: 0 continuous, 75 integer (75 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 2.911111e+01, 112 iterations, 0.00 seconds

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

     0     0   29.11111    0   70   23.00000   29.11111  26.6%     -    0s
H    0     0                      24.0000000   29.11111  21.3%     -    0s
     0     0   28.39286    0   72   24.00000   28.39286  18.3%     -    0s
H    0     0                      25.0000000   28.39286  13.6%     -    0s
     0     0   28.19167    0   73   25.00000   28.19167  12.8%     -    0s
H    0     0                      26.0000000   28.19167  8.43%     -    0s
     0     0   28.01190    0   74   26.00000   28.01190  7.74%     -    0s
     0     0   27.95455    0   72   26.00000   27.95455  7.52%     -    0s
     0     0   27.89231    0   72   26.00000   27.89231  7.28%     -    0s
     0     0   27.85714    0   72   26.00000   27.85714  7.14%     -    0s
     0     0   27.81538    0   74   26.00000   27.81538  6.98%     -    0s
     0     0   27.79555    0   74   26.00000   27.79555  6.91%     -    0s
     0     0   27.79362    0   74   26.00000   27.79362  6.90%     -    0s
     0     0   27.79362    0   74   26.00000   27.79362  6.90%     -    0s
     0     2   27.79066    0   74   26.00000   27.79066  6.89%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 35

Explored 20 nodes (811 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%