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

Optimize a model with 361 rows, 119 columns and 722 nonzeros
Presolve removed 63 rows and 3 columns
Presolve time: 0.00s
Presolved: 298 rows, 116 columns, 622 nonzeros
Variable types: 0 continuous, 116 integer (116 binary)
Found heuristic solution: objective 38.0000000

Root relaxation: objective 5.250000e+01, 164 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   87   38.00000   52.50000  38.2%     -    0s
H    0     0                      41.0000000   52.50000  28.0%     -    0s
H    0     0                      42.0000000   52.50000  25.0%     -    0s
     0     0   51.36842    0  110   42.00000   51.36842  22.3%     -    0s
H    0     0                      46.0000000   51.36842  11.7%     -    0s
     0     0   51.20000    0  111   46.00000   51.20000  11.3%     -    0s
     0     0   50.71937    0  109   46.00000   50.71937  10.3%     -    0s
     0     0   49.65432    0  114   46.00000   49.65432  7.94%     -    0s
     0     0   49.07821    0  113   46.00000   49.07821  6.69%     -    0s
     0     0   48.64706    0  110   46.00000   48.64706  5.75%     -    0s
     0     0   48.57667    0  111   46.00000   48.57667  5.60%     -    0s
     0     0   48.53846    0  106   46.00000   48.53846  5.52%     -    0s
     0     0   48.52222    0  108   46.00000   48.52222  5.48%     -    0s
     0     0   48.52222    0  103   46.00000   48.52222  5.48%     -    0s
     0     2   48.51685    0  103   46.00000   48.51685  5.47%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 70

Explored 44 nodes (1863 simplex iterations) in 0.09 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.600000000000e+01, best bound 4.600000000000e+01, gap 0.0%