Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:16 2012

Optimize a model with 349 rows, 113 columns and 698 nonzeros
Presolve removed 68 rows and 2 columns
Presolve time: 0.00s
Presolved: 281 rows, 111 columns, 595 nonzeros
Variable types: 0 continuous, 111 integer (111 binary)
Found heuristic solution: objective 42.0000000

Root relaxation: objective 4.866667e+01, 166 iterations, 0.00 seconds

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

     0     0   48.66667    0   95   42.00000   48.66667  15.9%     -    0s
     0     0   47.82353    0  108   42.00000   47.82353  13.9%     -    0s
H    0     0                      43.0000000   47.82353  11.2%     -    0s
     0     0   47.00000    0  104   43.00000   47.00000  9.30%     -    0s
     0     0   46.75000    0  102   43.00000   46.75000  8.72%     -    0s
     0     0   46.60870    0  103   43.00000   46.60870  8.39%     -    0s
     0     0   46.60714    0  110   43.00000   46.60714  8.39%     -    0s
     0     0   46.60714    0  102   43.00000   46.60714  8.39%     -    0s
     0     2   46.60714    0  102   43.00000   46.60714  8.39%     -    0s
H    8     8                      44.0000000   46.56604  5.83%  22.4    0s

Cutting planes:
  Zero half: 68

Explored 44 nodes (1320 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.400000000000e+01, best bound 4.400000000000e+01, gap 0.0%