Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:09 2012

Optimize a model with 233 rows, 99 columns and 466 nonzeros
Presolve removed 48 rows and 14 columns
Presolve time: 0.00s
Presolved: 185 rows, 85 columns, 377 nonzeros
Variable types: 0 continuous, 85 integer (85 binary)
Found heuristic solution: objective 42.0000000

Root relaxation: objective 4.850000e+01, 109 iterations, 0.00 seconds

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

     0     0   48.50000    0   77   42.00000   48.50000  15.5%     -    0s
     0     0   46.66667    0   79   42.00000   46.66667  11.1%     -    0s
     0     0   46.21053    0   75   42.00000   46.21053  10.0%     -    0s
H    0     0                      43.0000000   46.21053  7.47%     -    0s
H    0     0                      44.0000000   46.21053  5.02%     -    0s
H    0     0                      45.0000000   46.21053  2.69%     -    0s
     0     0   46.00000    0   69   45.00000   46.00000  2.22%     -    0s
     0     0     cutoff    0        45.00000   45.99995  2.22%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 38

Explored 0 nodes (286 simplex iterations) in 0.02 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%