Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:40 2012

Optimize a model with 192 rows, 60 columns and 384 nonzeros
Presolve removed 58 rows and 1 columns
Presolve time: 0.00s
Presolved: 134 rows, 59 columns, 303 nonzeros
Variable types: 0 continuous, 59 integer (59 binary)
Found heuristic solution: objective 22.0000000

Root relaxation: objective 2.422222e+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   24.22222    0   52   22.00000   24.22222  10.1%     -    0s
H    0     0                      23.0000000   24.22222  5.31%     -    0s

Cutting planes:
  Gomory: 4
  Zero half: 11

Explored 0 nodes (102 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.300000000000e+01, best bound 2.400000000000e+01, gap 4.3478%