Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:33 2012

Optimize a model with 103 rows, 81 columns and 336 nonzeros
Presolve time: 0.00s
Presolved: 103 rows, 81 columns, 336 nonzeros
Variable types: 0 continuous, 81 integer (81 binary)
Found heuristic solution: objective 26.0000000
Found heuristic solution: objective 25.0000000

Root relaxation: objective 0.000000e+00, 41 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   29   25.00000    0.00000   100%     -    0s
H    0     0                      24.0000000    0.00000   100%     -    0s
H    0     0                      21.0000000    0.00000   100%     -    0s
H    0     0                      20.0000000    0.00000   100%     -    0s
     0     0    0.51399    0   32   20.00000    0.51399  97.4%     -    0s
     0     0    1.07746    0   32   20.00000    1.07746  94.6%     -    0s
H    0     0                      17.0000000    1.07746  93.7%     -    0s
H    0     0                      15.0000000    1.07746  92.8%     -    0s
H    0     0                      10.0000000    1.07746  89.2%     -    0s
     0     0    1.30929    0   35   10.00000    1.30929  86.9%     -    0s
     0     0    1.32211    0   36   10.00000    1.32211  86.8%     -    0s
     0     0    1.32211    0   36   10.00000    1.32211  86.8%     -    0s
     0     2    1.33376    0   36   10.00000    1.33376  86.7%     -    0s
*    8     6               6       8.0000000    4.18144  47.7%  31.9    0s

Cutting planes:
  Gomory: 4
  Zero half: 3

Explored 19 nodes (591 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%