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

Optimize a model with 374 rows, 117 columns and 748 nonzeros
Presolve removed 82 rows and 3 columns
Presolve time: 0.00s
Presolved: 292 rows, 114 columns, 628 nonzeros
Variable types: 0 continuous, 114 integer (114 binary)
Found heuristic solution: objective 38.0000000

Root relaxation: objective 4.925000e+01, 216 iterations, 0.00 seconds

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

     0     0   49.25000    0  102   38.00000   49.25000  29.6%     -    0s
H    0     0                      42.0000000   49.25000  17.3%     -    0s
     0     0   48.25000    0  111   42.00000   48.25000  14.9%     -    0s
H    0     0                      44.0000000   48.25000  9.66%     -    0s
     0     0   47.50000    0  110   44.00000   47.50000  7.95%     -    0s
     0     0   47.20030    0  113   44.00000   47.20030  7.27%     -    0s
     0     0   46.86957    0  113   44.00000   46.86957  6.52%     -    0s
     0     0   46.70339    0  112   44.00000   46.70339  6.14%     -    0s
H    0     0                      45.0000000   46.70339  3.79%     -    0s
     0     0   46.56414    0  113   45.00000   46.56414  3.48%     -    0s
     0     0   46.54092    0  114   45.00000   46.54092  3.42%     -    0s
     0     0   46.54092    0  114   45.00000   46.54092  3.42%     -    0s
     0     2   46.54092    0  114   45.00000   46.54092  3.42%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 1
  Zero half: 47

Explored 17 nodes (1019 simplex iterations) in 0.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.500000000000e+01, best bound 4.500000000000e+01, gap 0.0%