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

Optimize a model with 101 rows, 66 columns and 316 nonzeros
Presolve time: 0.00s
Presolved: 101 rows, 66 columns, 316 nonzeros
Variable types: 0 continuous, 66 integer (66 binary)
Found heuristic solution: objective 27.0000000

Root relaxation: objective 0.000000e+00, 26 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   27.00000    0.00000   100%     -    0s
H    0     0                      25.0000000    0.00000   100%     -    0s
     0     0    0.87500    0   18   25.00000    0.87500  96.5%     -    0s
H    0     0                      24.0000000    0.87500  96.4%     -    0s
H    0     0                      21.0000000    0.87500  95.8%     -    0s
     0     0    0.93750    0   18   21.00000    0.93750  95.5%     -    0s
     0     0    0.93750    0   18   21.00000    0.93750  95.5%     -    0s
     0     0    0.93750    0   18   21.00000    0.93750  95.5%     -    0s
     0     2    1.00000    0   18   21.00000    1.00000  95.2%     -    0s
*   10    10               6      19.0000000    5.00000  73.7%  22.5    0s
*   18     8               7      18.0000000    5.00000  72.2%  15.0    0s

Cutting planes:
  Gomory: 1
  Mod-K: 4

Explored 90 nodes (961 simplex iterations) in 0.02 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%