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

Optimize a model with 229 rows, 98 columns and 458 nonzeros
Presolve removed 54 rows and 14 columns
Presolve time: 0.00s
Presolved: 175 rows, 84 columns, 360 nonzeros
Variable types: 0 continuous, 84 integer (84 binary)
Found heuristic solution: objective 41.0000000

Root relaxation: objective 4.650000e+01, 110 iterations, 0.00 seconds

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

     0     0   46.50000    0   71   41.00000   46.50000  13.4%     -    0s
H    0     0                      42.0000000   46.50000  10.7%     -    0s
     0     0   45.00000    0   70   42.00000   45.00000  7.14%     -    0s
     0     0   45.00000    0   81   42.00000   45.00000  7.14%     -    0s
     0     0   44.83333    0   80   42.00000   44.83333  6.75%     -    0s
     0     0   44.75000    0   76   42.00000   44.75000  6.55%     -    0s
     0     0   44.55556    0   81   42.00000   44.55556  6.08%     -    0s
     0     0   44.38235    0   84   42.00000   44.38235  5.67%     -    0s
     0     0   44.30435    0   81   42.00000   44.30435  5.49%     -    0s
     0     0   44.18182    0   83   42.00000   44.18182  5.19%     -    0s
     0     0   44.09730    0   84   42.00000   44.09730  4.99%     -    0s
H    0     0                      43.0000000   44.09730  2.55%     -    0s
     0     0   44.00000    0   62   43.00000   44.00000  2.33%     -    0s
     0     0   44.00000    0   69   43.00000   44.00000  2.33%     -    0s
     0     0   44.00000    0   64   43.00000   44.00000  2.33%     -    0s
     0     1   44.00000    0   64   43.00000   44.00000  2.33%     -    0s

Cutting planes:
  Zero half: 19

Explored 1 nodes (458 simplex iterations) in 0.04 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%