Hi Andreas,
I noticed that on
https://tracker.debian.org/pkg/veryfasttree, they are testing the tool with 32-bit architectures, and the tests are failing. The tool is designed to leverage computing on 64-bit architectures, and the memory limit of 32 bits drastically reduces the size of data that can be processed. Nevertheless, in order to avoid Segmentation faults on 32-bit architectures and to pass the tests on those systems, I have made the code compatible with 32 bits and released version 4.0.2. It should now pass all the Debian tests without any issues.
Cheers