Segmentation fault with `--allow-ub-in-dc`

Hi,
I'm experiencing a segmentation fault when using yarpgen with the `--allow-ub-in-dc=some` option.
Here's the command and the resulting error:
```
$ /root/yarpgen/build/yarpgen -s 167966503 --allow-ub-in-dc=some
/*SEED 167966503*/
Segmentation fault (core dumped)
$ /root/yarpgen/build/yarpgen --version
yarpgen version 2.0 (build 29a67b2 on 2023:08:03)
```

Could you please take a look at this issue?
Thanks!