Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:15 2012

Optimize a model with 81 rows, 67 columns and 267 nonzeros
Presolve time: 0.00s
Presolved: 81 rows, 67 columns, 267 nonzeros
Variable types: 0 continuous, 67 integer (67 binary)
Found heuristic solution: objective 16.0000000

Root relaxation: objective 0.000000e+00, 39 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   27   16.00000    0.00000   100%     -    0s
H    0     0                      11.0000000    0.00000   100%     -    0s
H    0     0                      10.0000000    0.00000   100%     -    0s
     0     0    0.50061    0   32   10.00000    0.50061  95.0%     -    0s
     0     0    0.54949    0   31   10.00000    0.54949  94.5%     -    0s
     0     0    0.60130    0   32   10.00000    0.60130  94.0%     -    0s
     0     0    0.65095    0   32   10.00000    0.65095  93.5%     -    0s
     0     0    0.65826    0   32   10.00000    0.65826  93.4%     -    0s
     0     2    0.77616    0   32   10.00000    0.77616  92.2%     -    0s
*    6     6               4       5.0000000    2.69492  46.1%  15.0    0s

Cutting planes:
  Gomory: 1
  Zero half: 3
  Mod-K: 1

Explored 13 nodes (273 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%