Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:22 2012

Optimize a model with 343 rows, 118 columns and 686 nonzeros
Presolve removed 58 rows and 4 columns
Presolve time: 0.00s
Presolved: 285 rows, 114 columns, 600 nonzeros
Variable types: 0 continuous, 114 integer (114 binary)
Found heuristic solution: objective 43.0000000

Root relaxation: objective 5.250000e+01, 143 iterations, 0.00 seconds

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

     0     0   52.50000    0   91   43.00000   52.50000  22.1%     -    0s
     0     0   51.50000    0   93   43.00000   51.50000  19.8%     -    0s
     0     0   51.30769    0  113   43.00000   51.30769  19.3%     -    0s
H    0     0                      44.0000000   51.30769  16.6%     -    0s
     0     0   50.64286    0  113   44.00000   50.64286  15.1%     -    0s
     0     0   50.08000    0  112   44.00000   50.08000  13.8%     -    0s
     0     0   49.71429    0  109   44.00000   49.71429  13.0%     -    0s
     0     0   49.56522    0  110   44.00000   49.56522  12.6%     -    0s
     0     0   49.52568    0  110   44.00000   49.52568  12.6%     -    0s
     0     0   49.52568    0  110   44.00000   49.52568  12.6%     -    0s
     0     2   49.51282    0  110   44.00000   49.51282  12.5%     -    0s
H    6     6                      45.0000000   49.51282  10.0%  47.8    0s
H   18     8                      46.0000000   49.44514  7.49%  30.7    0s
*   95     1               5      47.0000000   47.00000   0.0%  23.9    0s

Cutting planes:
  Zero half: 83

Explored 96 nodes (2934 simplex iterations) in 0.12 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.700000000000e+01, best bound 4.700000000000e+01, gap 0.0%