Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:23 2012

Optimize a model with 344 rows, 119 columns and 688 nonzeros
Presolve removed 66 rows and 9 columns
Presolve time: 0.00s
Presolved: 278 rows, 110 columns, 570 nonzeros
Variable types: 0 continuous, 110 integer (110 binary)
Found heuristic solution: objective 45.0000000

Root relaxation: objective 5.450000e+01, 129 iterations, 0.00 seconds

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

     0     0   54.50000    0   97   45.00000   54.50000  21.1%     -    0s
H    0     0                      46.0000000   54.50000  18.5%     -    0s
     0     0   53.00000    0   98   46.00000   53.00000  15.2%     -    0s
     0     0   51.88889    0  108   46.00000   51.88889  12.8%     -    0s
     0     0   51.05000    0  108   46.00000   51.05000  11.0%     -    0s
     0     0   50.58851    0  107   46.00000   50.58851  10.0%     -    0s
     0     0   50.29386    0  108   46.00000   50.29386  9.33%     -    0s
     0     0   50.20000    0  109   46.00000   50.20000  9.13%     -    0s
     0     0   50.15592    0  108   46.00000   50.15592  9.03%     -    0s
     0     0   49.96914    0  109   46.00000   49.96914  8.63%     -    0s
     0     0   49.86009    0  108   46.00000   49.86009  8.39%     -    0s
     0     0   49.79508    0  109   46.00000   49.79508  8.25%     -    0s
     0     0   49.79508    0  108   46.00000   49.79508  8.25%     -    0s
H    0     0                      47.0000000   49.79508  5.95%     -    0s
     0     2   49.78358    0  108   47.00000   49.78358  5.92%     -    0s
*   14     1               6      48.0000000   49.78358  3.72%  24.1    0s

Cutting planes:
  Zero half: 76

Explored 31 nodes (1536 simplex iterations) in 0.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.800000000000e+01, best bound 4.800000000000e+01, gap 0.0%