Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:38 2012

Optimize a model with 102 rows, 49 columns and 204 nonzeros
Presolve removed 23 rows and 6 columns
Presolve time: 0.00s
Presolved: 79 rows, 43 columns, 167 nonzeros
Variable types: 0 continuous, 43 integer (43 binary)
Found heuristic solution: objective 19.0000000

Root relaxation: objective 2.350000e+01, 49 iterations, 0.00 seconds

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

     0     0   23.50000    0   41   19.00000   23.50000  23.7%     -    0s
H    0     0                      20.0000000   23.50000  17.5%     -    0s
     0     0   22.00000    0   41   20.00000   22.00000  10.0%     -    0s
H    0     0                      21.0000000   22.00000  4.76%     -    0s
H    0     0                      22.0000000   22.00000   0.0%     -    0s

Cutting planes:
  Zero half: 7

Explored 0 nodes (91 simplex iterations) in 0.01 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%