Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:07 2012

Optimize a model with 218 rows, 95 columns and 436 nonzeros
Presolve removed 50 rows and 14 columns
Presolve time: 0.00s
Presolved: 168 rows, 81 columns, 352 nonzeros
Variable types: 0 continuous, 81 integer (81 binary)
Found heuristic solution: objective 41.0000000

Root relaxation: objective 4.600000e+01, 91 iterations, 0.00 seconds

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

     0     0   46.00000    0   70   41.00000   46.00000  12.2%     -    0s
     0     0   44.50000    0   63   41.00000   44.50000  8.54%     -    0s
     0     0   44.00000    0   60   41.00000   44.00000  7.32%     -    0s
     0     0   43.62500    0   71   41.00000   43.62500  6.40%     -    0s
H    0     0                      42.0000000   43.62500  3.87%     -    0s
     0     0   43.33333    0   73   42.00000   43.33333  3.17%     -    0s
H    0     0                      43.0000000   43.33333  0.78%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 14

Explored 0 nodes (216 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.300000000000e+01, best bound 4.300000000000e+01, gap 0.0%