@article{psb2thesecondprogramsynthesisbenchmark,
  title = {PSB2: The Second Program Synthesis Benchmark Suite},
  author = {Thomas Helmuth and Peter Kelly},
  year = {2021},
  eprint = {2106.06086},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2106.06086v1},
}