Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:54 2012

Optimize a model with 365 rows, 86 columns and 730 nonzeros
Presolve removed 110 rows and 0 columns
Presolve time: 0.00s
Presolved: 255 rows, 86 columns, 599 nonzeros
Variable types: 0 continuous, 86 integer (86 binary)
Found heuristic solution: objective 25.0000000

Root relaxation: objective 3.331250e+01, 152 iterations, 0.00 seconds

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

     0     0   33.31250    0   81   25.00000   33.31250  33.2%     -    0s
H    0     0                      26.0000000   33.31250  28.1%     -    0s
     0     0   32.00000    0   73   26.00000   32.00000  23.1%     -    0s
     0     0   32.00000    0   77   26.00000   32.00000  23.1%     -    0s
     0     0   31.91667    0   81   26.00000   31.91667  22.8%     -    0s
     0     0   31.60918    0   84   26.00000   31.60918  21.6%     -    0s
     0     0   30.96121    0   82   26.00000   30.96121  19.1%     -    0s
H    0     0                      27.0000000   30.96121  14.7%     -    0s
     0     0   30.82353    0   81   27.00000   30.82353  14.2%     -    0s
H    0     0                      28.0000000   30.82353  10.1%     -    0s
     0     0   30.78090    0   82   28.00000   30.78090  9.93%     -    0s
     0     0   30.76739    0   84   28.00000   30.76739  9.88%     -    0s
     0     0   30.76739    0   84   28.00000   30.76739  9.88%     -    0s
     0     2   30.76498    0   83   28.00000   30.76498  9.87%     -    0s

Cutting planes:
  Zero half: 52

Explored 59 nodes (2072 simplex iterations) in 0.09 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.800000000000e+01, best bound 2.800000000000e+01, gap 0.0%