Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:41 2012

Optimize a model with 204 rows, 62 columns and 408 nonzeros
Presolve removed 60 rows and 0 columns
Presolve time: 0.00s
Presolved: 144 rows, 62 columns, 336 nonzeros
Variable types: 0 continuous, 62 integer (62 binary)
Found heuristic solution: objective 20.0000000

Root relaxation: objective 2.450000e+01, 102 iterations, 0.00 seconds

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

     0     0   24.50000    0   39   20.00000   24.50000  22.5%     -    0s
H    0     0                      22.0000000   24.50000  11.4%     -    0s
     0     0   24.00000    0   38   22.00000   24.00000  9.09%     -    0s
     0     0   24.00000    0   54   22.00000   24.00000  9.09%     -    0s
     0     0   23.68750    0   57   22.00000   23.68750  7.67%     -    0s
     0     0   23.50000    0   58   22.00000   23.50000  6.82%     -    0s
     0     0   23.44444    0   56   22.00000   23.44444  6.57%     -    0s
     0     0   23.42857    0   57   22.00000   23.42857  6.49%     -    0s
     0     0   23.42857    0   54   22.00000   23.42857  6.49%     -    0s
     0     0   23.42857    0   60   22.00000   23.42857  6.49%     -    0s
     0     0   23.42857    0   58   22.00000   23.42857  6.49%     -    0s
     0     2   23.42857    0   58   22.00000   23.42857  6.49%     -    0s

Cutting planes:
  Zero half: 16

Explored 16 nodes (464 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%