Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:17 2012

Optimize a model with 353 rows, 113 columns and 706 nonzeros
Presolve removed 82 rows and 6 columns
Presolve time: 0.00s
Presolved: 271 rows, 107 columns, 581 nonzeros
Variable types: 0 continuous, 107 integer (107 binary)
Found heuristic solution: objective 37.0000000

Root relaxation: objective 4.912500e+01, 175 iterations, 0.00 seconds

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

     0     0   49.12500    0  106   37.00000   49.12500  32.8%     -    0s
     0     0   48.00000    0   97   37.00000   48.00000  29.7%     -    0s
H    0     0                      40.0000000   48.00000  20.0%     -    0s
H    0     0                      41.0000000   48.00000  17.1%     -    0s
     0     0   47.62143    0  106   41.00000   47.62143  16.1%     -    0s
     0     0   47.31034    0  107   41.00000   47.31034  15.4%     -    0s
     0     0   47.07167    0  107   41.00000   47.07167  14.8%     -    0s
     0     0   46.81250    0  107   41.00000   46.81250  14.2%     -    0s
     0     0   46.66667    0  107   41.00000   46.66667  13.8%     -    0s
     0     0   46.66667    0  107   41.00000   46.66667  13.8%     -    0s
     0     0   46.66667    0  107   41.00000   46.66667  13.8%     -    0s
H    0     0                      42.0000000   46.66667  11.1%     -    0s
     0     2   46.66667    0  107   42.00000   46.66667  11.1%     -    0s
*   17    10              11      43.0000000   46.66667  8.53%  15.8    0s

Cutting planes:
  Gomory: 1
  Zero half: 65

Explored 123 nodes (2919 simplex iterations) in 0.12 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.300000000000e+01, best bound 4.300000000000e+01, gap 0.0%