Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:13 2012

Optimize a model with 317 rows, 107 columns and 634 nonzeros
Presolve removed 52 rows and 0 columns
Presolve time: 0.00s
Presolved: 265 rows, 107 columns, 561 nonzeros
Variable types: 0 continuous, 107 integer (107 binary)
Found heuristic solution: objective 38.0000000

Root relaxation: objective 4.650000e+01, 126 iterations, 0.00 seconds

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

     0     0   46.50000    0   91   38.00000   46.50000  22.4%     -    0s
     0     0   45.05000    0  102   38.00000   45.05000  18.6%     -    0s
     0     0   44.25000    0   95   38.00000   44.25000  16.4%     -    0s
     0     0   43.80208    0  104   38.00000   43.80208  15.3%     -    0s
     0     0   43.58537    0  101   38.00000   43.58537  14.7%     -    0s
     0     0   43.25316    0  104   38.00000   43.25316  13.8%     -    0s
     0     0   43.17857    0  103   38.00000   43.17857  13.6%     -    0s
H    0     0                      39.0000000   43.17857  10.7%     -    0s
     0     0   42.80495    0  103   39.00000   42.80495  9.76%     -    0s
     0     0   42.73788    0  103   39.00000   42.73788  9.58%     -    0s
     0     0   42.65823    0  104   39.00000   42.65823  9.38%     -    0s
     0     0   42.61833    0  105   39.00000   42.61833  9.28%     -    0s
     0     0   42.61833    0  105   39.00000   42.61833  9.28%     -    0s
     0     2   42.61607    0  105   39.00000   42.61607  9.27%     -    0s
*   16     5               4      41.0000000   42.22807  3.00%  26.8    0s

Cutting planes:
  Gomory: 1
  Zero half: 52

Explored 22 nodes (1192 simplex iterations) in 0.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.100000000000e+01, best bound 4.100000000000e+01, gap 0.0%