{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:W3Q3A3CRCFTZIJCOETDQU7YNN7","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"45c544269ae517bac9c599b92e7e3e225742d57610868878be887d6c6d0781e6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2017-09-14T21:34:25Z","title_canon_sha256":"a43eaed092df7f946ddcdf858d9906a804750f76f831122eb4f4e41e19ec278b"},"schema_version":"1.0","source":{"id":"1709.04986","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.04986","created_at":"2026-05-18T00:20:24Z"},{"alias_kind":"arxiv_version","alias_value":"1709.04986v2","created_at":"2026-05-18T00:20:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.04986","created_at":"2026-05-18T00:20:24Z"},{"alias_kind":"pith_short_12","alias_value":"W3Q3A3CRCFTZ","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"W3Q3A3CRCFTZIJCO","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"W3Q3A3CR","created_at":"2026-05-18T12:31:49Z"}],"graph_snapshots":[{"event_id":"sha256:e1a290144162023916ac4f57374d8ea60e078f2aa00fdea93f7b485339b069b6","target":"graph","created_at":"2026-05-18T00:20:24Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Automated synthesis of reactive systems from specifications has been a topic of research for decades. Recently, a variety of approaches have been proposed to extend synthesis of reactive systems from proposi- tional specifications towards specifications over rich theories. We propose a novel, completely automated approach to program synthesis which reduces the problem to deciding the validity of a set of forall-exists formulas. In spirit of IC3 / PDR, our problem space is recursively refined by blocking out regions of unsafe states, aiming to discover a fixpoint that describes safe reactions. ","authors_text":"Andreas Katis, Andrew Gacek, Arie Gurfinkel, Grigory Fedyukovich, Huajun Guo, John Backes, Michael W. Whalen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2017-09-14T21:34:25Z","title":"Validity-Guided Synthesis of Reactive Systems from Assume-Guarantee Contracts"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.04986","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:5e6acf3ba304d3b2f1eff56de8f4018eac941ca62b6f4c02600e202e30b4b8d1","target":"record","created_at":"2026-05-18T00:20:24Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"45c544269ae517bac9c599b92e7e3e225742d57610868878be887d6c6d0781e6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2017-09-14T21:34:25Z","title_canon_sha256":"a43eaed092df7f946ddcdf858d9906a804750f76f831122eb4f4e41e19ec278b"},"schema_version":"1.0","source":{"id":"1709.04986","kind":"arxiv","version":2}},"canonical_sha256":"b6e1b06c51116794244e24c70a7f0d6fd2fb3d8e93a5d80c3b8dbc1f242fbdfc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b6e1b06c51116794244e24c70a7f0d6fd2fb3d8e93a5d80c3b8dbc1f242fbdfc","first_computed_at":"2026-05-18T00:20:24.311067Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:20:24.311067Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5wHEVubRw9Mqfu+yCf/d5VAUKLH6U+E2b1P2PCGh1XlF72dQUYVEReTKkUWX4wPKpOd7MpPN+V+/tQ60xDmQBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:20:24.311503Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.04986","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5e6acf3ba304d3b2f1eff56de8f4018eac941ca62b6f4c02600e202e30b4b8d1","sha256:e1a290144162023916ac4f57374d8ea60e078f2aa00fdea93f7b485339b069b6"],"state_sha256":"f8a7bc178e8f3bc1908116d207f2b052ca7add73ef04007e37fff6575a987271"}