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

Optimize a model with 302 rows, 74 columns and 604 nonzeros
Presolve removed 93 rows and 0 columns
Presolve time: 0.00s
Presolved: 209 rows, 74 columns, 493 nonzeros
Variable types: 0 continuous, 74 integer (74 binary)
Found heuristic solution: objective 21.0000000

Root relaxation: objective 2.916667e+01, 121 iterations, 0.00 seconds

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

     0     0   29.16667    0   66   21.00000   29.16667  38.9%     -    0s
H    0     0                      22.0000000   29.16667  32.6%     -    0s
     0     0   28.17021    0   74   22.00000   28.17021  28.0%     -    0s
H    0     0                      23.0000000   28.17021  22.5%     -    0s
     0     0   27.59796    0   73   23.00000   27.59796  20.0%     -    0s
     0     0   27.55256    0   74   23.00000   27.55256  19.8%     -    0s
     0     0   27.41298    0   73   23.00000   27.41298  19.2%     -    0s
     0     0   27.22013    0   74   23.00000   27.22013  18.3%     -    0s
     0     0   27.11585    0   74   23.00000   27.11585  17.9%     -    0s
     0     0   27.08275    0   74   23.00000   27.08275  17.8%     -    0s
H    0     0                      24.0000000   27.08275  12.8%     -    0s
     0     0   27.03874    0   73   24.00000   27.03874  12.7%     -    0s
     0     0   26.96970    0   73   24.00000   26.96970  12.4%     -    0s
     0     0   26.96858    0   73   24.00000   26.96858  12.4%     -    0s
     0     0   26.96858    0   73   24.00000   26.96858  12.4%     -    0s
     0     2   26.96560    0   73   24.00000   26.96560  12.4%     -    0s

Cutting planes:
  Gomory: 2
  Zero half: 49

Explored 80 nodes (1946 simplex iterations) in 0.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%