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

Optimize a model with 212 rows, 63 columns and 424 nonzeros
Presolve removed 65 rows and 2 columns
Presolve time: 0.00s
Presolved: 147 rows, 61 columns, 338 nonzeros
Variable types: 0 continuous, 61 integer (61 binary)
Found heuristic solution: objective 23.0000000

Root relaxation: objective 2.600000e+01, 80 iterations, 0.00 seconds

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

     0     0   26.00000    0   42   23.00000   26.00000  13.0%     -    0s
     0     0   25.37500    0   55   23.00000   25.37500  10.3%     -    0s
     0     0   24.96000    0   61   23.00000   24.96000  8.52%     -    0s
     0     0   24.76190    0   60   23.00000   24.76190  7.66%     -    0s
     0     0   24.71287    0   60   23.00000   24.71287  7.45%     -    0s
     0     0   24.67010    0   60   23.00000   24.67010  7.26%     -    0s
     0     0   24.65574    0   60   23.00000   24.65574  7.20%     -    0s
     0     0   24.65574    0   60   23.00000   24.65574  7.20%     -    0s
     0     2   24.65574    0   60   23.00000   24.65574  7.20%     -    0s

Cutting planes:
  Zero half: 21

Explored 9 nodes (410 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.300000000000e+01, best bound 2.300000000000e+01, gap 0.0%