Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:35 2012

Optimize a model with 79 rows, 54 columns and 249 nonzeros
Presolve time: 0.00s
Presolved: 79 rows, 54 columns, 249 nonzeros
Variable types: 0 continuous, 54 integer (54 binary)
Found heuristic solution: objective 20.0000000

Root relaxation: objective 0.000000e+00, 22 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   15   20.00000    0.00000   100%     -    0s
H    0     0                      16.0000000    0.00000   100%     -    0s
     0     0    0.81905    0   23   16.00000    0.81905  94.9%     -    0s
     0     0    0.89501    0   21   16.00000    0.89501  94.4%     -    0s
H    0     0                      14.0000000    0.89501  93.6%     -    0s
     0     0    0.91429    0   20   14.00000    0.91429  93.5%     -    0s
     0     0    1.00952    0   20   14.00000    1.00952  92.8%     -    0s
     0     0    1.02857    0   18   14.00000    1.02857  92.7%     -    0s
     0     0    1.02857    0   20   14.00000    1.02857  92.7%     -    0s
     0     0    1.02857    0   18   14.00000    1.02857  92.7%     -    0s
     0     2    1.21739    0   18   14.00000    1.21739  91.3%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 11

Explored 27 nodes (522 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%