Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:31:57 2012

Optimize a model with 61 rows, 43 columns and 122 nonzeros
Presolve removed 30 rows and 19 columns
Presolve time: 0.00s
Presolved: 31 rows, 24 columns, 62 nonzeros
Variable types: 0 continuous, 24 integer (24 binary)
Found heuristic solution: objective 21.0000000

Root relaxation: objective 2.300000e+01, 27 iterations, 0.00 seconds

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

     0     0   23.00000    0   24   21.00000   23.00000  9.52%     -    0s
     0     0   22.00000    0   22   21.00000   22.00000  4.76%     -    0s
H    0     0                      22.0000000   22.00000   0.0%     -    0s

Cutting planes:
  Zero half: 3

Explored 0 nodes (59 simplex iterations) in 0.00 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%