The location of the original dataset the tool was tested on

In the [paper](https://testsmells.org/assets/publications/FSE2020_TechnicalPaper.pdf), there is a mention of the creation of a new dataset that the tool was originally tested on. It is stated that the paper is on [this website](https://testsmells.org/), but I can't specifically locate it. Can you share the location of the original dataset that the tool was tested on?