Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:07 2012

Optimize a model with 249 rows, 94 columns and 498 nonzeros
Presolve removed 63 rows and 9 columns
Presolve time: 0.00s
Presolved: 186 rows, 85 columns, 393 nonzeros
Variable types: 0 continuous, 85 integer (85 binary)
Found heuristic solution: objective 31.0000000

Root relaxation: objective 4.200000e+01, 98 iterations, 0.00 seconds

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

     0     0   42.00000    0   68   31.00000   42.00000  35.5%     -    0s
H    0     0                      35.0000000   42.00000  20.0%     -    0s
H    0     0                      36.0000000   42.00000  16.7%     -    0s
     0     0   40.83333    0   81   36.00000   40.83333  13.4%     -    0s
     0     0   40.16667    0   84   36.00000   40.16667  11.6%     -    0s
     0     0   39.62500    0   84   36.00000   39.62500  10.1%     -    0s
     0     0   39.34783    0   81   36.00000   39.34783  9.30%     -    0s
     0     0   39.00000    0   82   36.00000   39.00000  8.33%     -    0s
     0     0   39.00000    0   82   36.00000   39.00000  8.33%     -    0s
     0     0   39.00000    0   60   36.00000   39.00000  8.33%     -    0s
     0     2   39.00000    0   59   36.00000   39.00000  8.33%     -    0s
*   10     8               8      37.0000000   39.00000  5.41%  24.5    0s

Cutting planes:
  Zero half: 36

Explored 35 nodes (1109 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0%