Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:42 2012

Optimize a model with 111 rows, 71 columns and 346 nonzeros
Presolve time: 0.00s
Presolved: 111 rows, 71 columns, 346 nonzeros
Variable types: 0 continuous, 71 integer (71 binary)
Found heuristic solution: objective 32.0000000
Found heuristic solution: objective 25.0000000

Root relaxation: objective 0.000000e+00, 25 iterations, 0.00 seconds

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

     0     0    0.00000    0   16   25.00000    0.00000   100%     -    0s
     0     0    0.66667    0   17   25.00000    0.66667  97.3%     -    0s
     0     0    1.00000    0   18   25.00000    1.00000  96.0%     -    0s
H    0     0                      22.0000000    1.00000  95.5%     -    0s
     0     0    1.07143    0   19   22.00000    1.07143  95.1%     -    0s
     0     2    1.10000    0   19   22.00000    1.10000  95.0%     -    0s
*   25    16               8      20.0000000    4.92308  75.4%  15.5    0s
*   29    13               8      19.0000000    4.92308  74.1%  14.0    0s
*   47    11               6      18.0000000    8.95604  50.2%  13.7    0s

Cutting planes:
  Gomory: 3

Explored 76 nodes (1010 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%