Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:08 2012

Optimize a model with 214 rows, 95 columns and 428 nonzeros
Presolve removed 47 rows and 13 columns
Presolve time: 0.00s
Presolved: 167 rows, 82 columns, 346 nonzeros
Variable types: 0 continuous, 82 integer (82 binary)
Found heuristic solution: objective 37.0000000

Root relaxation: objective 4.500000e+01, 103 iterations, 0.00 seconds

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

     0     0   45.00000    0   66   37.00000   45.00000  21.6%     -    0s
H    0     0                      39.0000000   45.00000  15.4%     -    0s
     0     0   43.62500    0   80   39.00000   43.62500  11.9%     -    0s
H    0     0                      40.0000000   43.62500  9.06%     -    0s
     0     0   43.22222    0   79   40.00000   43.22222  8.06%     -    0s
H    0     0                      41.0000000   43.22222  5.42%     -    0s
     0     0   43.10000    0   80   41.00000   43.10000  5.12%     -    0s
     0     0   43.08333    0   79   41.00000   43.08333  5.08%     -    0s
     0     0   43.06383    0   80   41.00000   43.06383  5.03%     -    0s
     0     0   43.06383    0   80   41.00000   43.06383  5.03%     -    0s
     0     2   43.06383    0   80   41.00000   43.06383  5.03%     -    0s
*   10     3               8      42.0000000   42.00000   0.0%  10.6    0s

Cutting planes:
  Gomory: 2
  Zero half: 17

Explored 11 nodes (441 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.200000000000e+01, best bound 4.200000000000e+01, gap 0.0%