File counter is not correct

[simonschaufi]

First it counts up to 650:

vendor/bin/fractor process --dry-run
  65/650 [==>-------------------------]  10%

and then it goes up way above 1000:

vendor/bin/fractor process --dry-run
 1078/1078 [============================] 10

and does weird things

[andreaswolf]

I suppose this is because currently the progress is advanced for each file and for each processor, not only once per file.