Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:35 2012

Optimize a model with 157 rows, 115 columns and 505 nonzeros
Presolve time: 0.00s
Presolved: 157 rows, 115 columns, 505 nonzeros
Variable types: 0 continuous, 115 integer (115 binary)
Found heuristic solution: objective 29.0000000

Root relaxation: objective 0.000000e+00, 63 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   37   29.00000    0.00000   100%     -    0s
H    0     0                      27.0000000    0.00000   100%     -    0s
H    0     0                      21.0000000    0.00000   100%     -    0s
     0     0    0.62489    0   40   21.00000    0.62489  97.0%     -    0s
H    0     0                      19.0000000    0.62489  96.7%     -    0s
     0     0    0.80136    0   40   19.00000    0.80136  95.8%     -    0s
     0     0    0.83288    0   42   19.00000    0.83288  95.6%     -    0s
     0     0    0.83949    0   43   19.00000    0.83949  95.6%     -    0s
     0     2    0.93645    0   43   19.00000    0.93645  95.1%     -    0s
*   24    13              11      18.0000000    4.01829  77.7%  19.5    0s
*  253    13               7      17.0000000   13.70000  19.4%  15.1    0s

Cutting planes:
  Gomory: 1
  Zero half: 2
  Mod-K: 2

Explored 272 nodes (4314 simplex iterations) in 0.13 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%