{"id":19381414,"url":"https://github.com/lukaskalbertodt/beaver","last_synced_at":"2025-04-23T20:31:55.213Z","repository":{"id":53192026,"uuid":"222111183","full_name":"LukasKalbertodt/beaver","owner":"LukasKalbertodt","description":"Simulating Turing machines for the Busy Beaver game","archived":false,"fork":false,"pushed_at":"2022-02-12T11:33:17.000Z","size":252,"stargazers_count":13,"open_issues_count":1,"forks_count":1,"subscribers_count":2,"default_branch":"master","last_synced_at":"2025-04-02T19:46:59.125Z","etag":null,"topics":["busy-beaver","busy-beavers","rust","rust-application","turing-machine"],"latest_commit_sha":null,"homepage":"","language":"Rust","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"apache-2.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/LukasKalbertodt.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE-APACHE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2019-11-16T14:28:58.000Z","updated_at":"2024-09-24T14:54:44.000Z","dependencies_parsed_at":"2022-09-14T18:01:00.395Z","dependency_job_id":null,"html_url":"https://github.com/LukasKalbertodt/beaver","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/LukasKalbertodt%2Fbeaver","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/LukasKalbertodt%2Fbeaver/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/LukasKalbertodt%2Fbeaver/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/LukasKalbertodt%2Fbeaver/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/LukasKalbertodt","download_url":"https://codeload.github.com/LukasKalbertodt/beaver/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":250509698,"owners_count":21442482,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["busy-beaver","busy-beavers","rust","rust-application","turing-machine"],"created_at":"2024-11-10T09:17:00.966Z","updated_at":"2025-04-23T20:31:54.880Z","avatar_url":"https://github.com/LukasKalbertodt.png","language":"Rust","funding_links":[],"categories":[],"sub_categories":[],"readme":"Busy Beaver\n===========\n\nAn application that analyses/simulates all possible N-state Turing machines with tape alphabet = {0, 1}, where `N` is given as command line argument.\nAll TMs are generated, then categorized based on static analysis or their runtime behavior.\nFinally, a summary of all results is printed.\nThis is related to the [Busy Beaver game](https://en.wikipedia.org/wiki/Busy_Beaver_game).\n\n**Features**:\n- Nice output, including histogram\n- Fairly fast (on a Ryzen 3600, N=4 with its 11 billion TMs, 5.5 billion deduplicated, runs in roughly half a minute)\n- Static analysis: state graph reachability check\n- Can detect and categorize ≈97% of non-halting TMs (for N=4)\n\n\u003cp align=\"center\"\u003e\n    \u003cimg src=\".github/readme-image.png\" width=\"90%\"\u003e\u003c/img\u003e\n\u003c/p\u003e\n\n**Potential goals for future development**\n- [ ] Optimize\n- [ ] More smart analysis techniques\n- [ ] Print states of certain TMs (e.g. the winning one)\n- [ ] Show trace of the winning TM\n\nNote that this is just a hobby project which I don't expect to be useful to anyone.\nIf you are still interested, PRs are always welcome.\n\n---\n\n## License\n\nLicensed under either of \u003ca href=\"LICENSE-APACHE\"\u003eApache License, Version\n2.0\u003c/a\u003e or \u003ca href=\"LICENSE-MIT\"\u003eMIT license\u003c/a\u003e at your option.\nUnless you explicitly state otherwise, any contribution intentionally submitted\nfor inclusion in this project by you, as defined in the Apache-2.0 license,\nshall be dual licensed as above, without any additional terms or conditions.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Flukaskalbertodt%2Fbeaver","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Flukaskalbertodt%2Fbeaver","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Flukaskalbertodt%2Fbeaver/lists"}