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Author SHA1 Message Date
CEisenhofer
2d44a4dbf3 Update spec 2026-03-04 16:57:55 +01:00
Clemens Eisenhofer
95e8981362
Merge pull request #8859 from Z3Prover/copilot/implement-parameter-integration 
Parameter integration for theory_nseq: add smt.nseq.max_depth
 2026-03-04 16:56:23 +01:00
copilot-swe-agent[bot]
5003cece9d Implement Parameter integration for theory_nseq (smt.nseq.max_depth) 
Co-authored-by: CEisenhofer <56730610+CEisenhofer@users.noreply.github.com>
 2026-03-04 15:45:55 +00:00
copilot-swe-agent[bot]
47836e6f5b Initial plan 2026-03-04 15:07:21 +00:00
CEisenhofer
ee02c1c8f3 Changed specifications 2026-03-04 15:53:49 +01:00
Nikolaj Bjorner
5aa3713d19 first end-pass. Atomic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-04 02:05:26 -08:00
Nikolaj Bjorner
13f9fec339
Merge pull request #8854 from Z3Prover/copilot/implement-zipt-string-solver 
Implement ZIPT string solver as theory_nseq
 2026-03-03 15:37:41 -08:00
copilot-swe-agent[bot]
f97d80a5e9 Add smt_seq to smt dependencies in mk_project.py 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-03 23:36:47 +00:00
copilot-swe-agent[bot]
927b03615c Fix dangling pointer in fresh variable name construction in generate_extensions() 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-03 21:53:55 +00:00
copilot-swe-agent[bot]
0bdec633d7 Implement ZIPT string solver skeleton (theory_nseq) 
Add theory_nseq, a Nielsen-graph-based string solver plugin for Z3.

## New files
- src/smt/nseq_state.h/.cpp: constraint store bridging SMT context to
  Nielsen graph with manual push/pop backtracking
- src/smt/nseq_regex.h/.cpp: regex membership handling via Brzozowski
  derivatives (stub delegates to sgraph::brzozowski_deriv)
- src/smt/nseq_model.h/.cpp: model generation stub
- src/smt/theory_nseq.h/.cpp: main theory class implementing smt::theory
  with its own private egraph/sgraph, returns FC_GIVEUP as skeleton
- src/test/nseq_basic.cpp: unit tests covering instantiation, parameter
  validation, trivial-equality SAT, and node simplification

## Extensions to seq_nielsen.h/.cpp
- Add search_result enum and solve() iterative-deepening DFS entry point
- Add search_dfs() recursive DFS driver
- Add simplify_node(), generate_extensions(), collect_conflict_deps()
- Add nielsen_node::simplify_and_init(): trivial removal, empty
  propagation, prefix matching, symbol clash detection
- Add nielsen_node::is_satisfied(), is_subsumed_by()
- Implement Det, Const Nielsen, and Eq-split modifiers in
  generate_extensions()

## Integration
- smt_params.cpp: accept 'nseq' as valid string_solver value
- smt_params_helper.pyg: document 'nseq' option
- smt_setup.h/.cpp: add setup_nseq(), wire into setup_QF_S() and
  setup_seq_str()
- smt/CMakeLists.txt: add new sources and smt_seq dependency

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
 2026-03-03 21:50:21 +00:00
copilot-swe-agent[bot]
a7084de5a8 Initial plan 2026-03-03 21:18:59 +00:00
Nikolaj Bjorner
ce3ddd1718 added specs and research 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-03 13:17:29 -08:00
Nikolaj Bjorner
7438ae6975 Merge ranch 'c3' of https://github.com/z3prover/z3 into c3 2026-03-03 13:16:29 -08:00
Nikolaj Bjorner
f0e026104c added specs and research from running atomic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-03 13:16:16 -08:00
Nikolaj Bjorner
a9d0559076
Merge pull request #8849 from Z3Prover/copilot/fix-reconcat-classification 
sgraph: fix re.concat classification and s_loop nullability
 2026-03-03 13:10:39 -08:00
Nikolaj Bjorner
a80652270d
Merge branch 'c3' into copilot/fix-reconcat-classification 2026-03-03 13:10:25 -08:00
Nikolaj Bjorner
bf8b860015
Merge pull request #8848 from Z3Prover/copilot/apply-zipt-code-improvements 
ZIPT: fix loop nullable, drop bounds check, symmetric star merging
 2026-03-03 13:08:38 -08:00
Nikolaj Bjorner
7febc19e4c
Merge pull request #8851 from Z3Prover/copilot/examine-nielsen-graphs-constraints 
doc: Add ZIPT port comparison summary to seq_nielsen.h
 2026-03-03 13:08:08 -08:00
copilot-swe-agent[bot]
dd1363f031 Add ZIPT port comparison summary to seq_nielsen.h 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-03 16:34:32 +00:00
copilot-swe-agent[bot]
e92f0be8c5 Initial plan 2026-03-03 16:29:34 +00:00
copilot-swe-agent[bot]
c0ed79c93b improve s_loop nullable extraction: clearer comments and sentinel values 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-03 05:40:16 +00:00
copilot-swe-agent[bot]
a0b359212e Apply ZIPT improvements: fix loop nullable, drop bounds check, symmetric star merging 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-03 05:39:33 +00:00
copilot-swe-agent[bot]
69da8f02c2 fix re.concat classification and loop nullability in euf_sgraph.cpp 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-03 05:19:06 +00:00
copilot-swe-agent[bot]
d902ce166e Initial plan 2026-03-03 05:17:55 +00:00
copilot-swe-agent[bot]
593e22ba4e Initial plan 2026-03-03 05:17:21 +00:00
Nikolaj Bjorner
fb674ac5b2
Merge pull request #8828 from Z3Prover/copilot/port-nielsen-graph-generation 
Port Nielsen graph constraint framework from ZIPT into smt/seq
 2026-03-02 19:10:49 -08:00
Nikolaj Bjorner
d40c4721d8
Merge pull request #8838 from Z3Prover/copilot/fix-no-such-field-error 
Fix NoSuchFieldError in Java JNI wrapper for BOOL OUT/INOUT parameters
 2026-03-02 19:10:21 -08:00
copilot-swe-agent[bot]
361f57976b Fix build: update seq_nielsen tests to use new sgraph(m, eg) constructor after c3 merge 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-03 01:46:26 +00:00
Nikolaj Bjorner
fedb610da1 Merge remote-tracking branch 'origin/c3' into copilot/port-nielsen-graph-generation 2026-03-02 16:56:55 -08:00
Nikolaj Bjorner
9031089999 add zipt reviewer to master branch 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-02 16:51:52 -08:00
Nikolaj Bjorner
585e2cc4ba
Merge pull request #8829 from Z3Prover/copilot/update-sgraph-seq-plugin 
Refactor sgraph/seq_plugin ownership, add hash matrix and substitution caching
 2026-03-02 16:45:51 -08:00
Nikolaj Bjorner
83315f4054 fix python build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-03 00:42:07 +00:00
copilot-swe-agent[bot]
7c328647de Move seq_nielsen from src/ast/rewriter to src/smt/seq with new smt_seq component 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-03 00:17:10 +00:00
Nikolaj Bjorner
df7d5cc49b
Merge pull request #8839 from Z3Prover/copilot/examine-new-files-for-improvements 
Add ZIPT code reviewer agentic workflow (4x daily)
 2026-03-02 16:09:31 -08:00
copilot-swe-agent[bot]
7c8f2d93bb Change seq_plugin m_sg to sgraph& reference, enode_concat_hash takes sgraph& directly 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-03 00:07:53 +00:00
copilot-swe-agent[bot]
28d1c4a27f Add ZIPT code reviewer agentic workflow (runs 4x daily) 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-03 00:00:36 +00:00
copilot-swe-agent[bot]
c384710b08 Fix NoSuchFieldError in JNI for BoolPtr: use Z field descriptor and SetBooleanField 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-02 23:56:42 +00:00
copilot-swe-agent[bot]
67f4d30577 Initial plan 2026-03-02 23:55:15 +00:00
copilot-swe-agent[bot]
027b46b2ed Initial plan 2026-03-02 23:52:53 +00:00
Nikolaj Bjorner
30483d6cf2
Merge pull request #8835 from Z3Prover/dependabot/github_actions/actions/download-artifact-8.0.0 
Bump actions/download-artifact from 6.0.0 to 8.0.0
 2026-03-02 15:48:03 -08:00
Nikolaj Bjorner
ef648ff632
Merge pull request #8833 from Z3Prover/dependabot/github_actions/actions/upload-artifact-7.0.0 
Bump actions/upload-artifact from 6.0.0 to 7.0.0
 2026-03-02 15:47:48 -08:00
Nikolaj Bjorner
07742ed49f
Merge pull request #8834 from Z3Prover/dependabot/github_actions/actions/cache-5.0.3 
Bump actions/cache from 4.3.0 to 5.0.3
 2026-03-02 15:47:34 -08:00
Nikolaj Bjorner
ba88256a2a
Merge pull request #8836 from Z3Prover/dependabot/github_actions/actions/checkout-6.0.2 
Bump actions/checkout from 5.0.1 to 6.0.2
 2026-03-02 15:47:22 -08:00
Nikolaj Bjorner
377c85f491
Merge pull request #8837 from Z3Prover/dependabot/github_actions/github/gh-aw-0.51.6 
Bump github/gh-aw from 0.45.6 to 0.51.6
 2026-03-02 15:47:11 -08:00
dependabot[bot]
11d3a11cea
Bump github/gh-aw from 0.45.6 to 0.51.6 
Bumps [github/gh-aw](https://github.com/github/gh-aw) from 0.45.6 to 0.51.6.
- [Release notes](https://github.com/github/gh-aw/releases)
- [Commits](https://github.com/github/gh-aw/compare/v0.45.6...v0.51.6)

---
updated-dependencies:
- dependency-name: github/gh-aw
  dependency-version: 0.51.6
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
 2026-03-02 23:44:00 +00:00
dependabot[bot]
e482052b37
Bump actions/checkout from 5.0.1 to 6.0.2 
Bumps [actions/checkout](https://github.com/actions/checkout) from 5.0.1 to 6.0.2.
- [Release notes](https://github.com/actions/checkout/releases)
- [Commits](https://github.com/actions/checkout/compare/v5.0.1...v6.0.2)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
 2026-03-02 23:42:08 +00:00
dependabot[bot]
867e768aa8
Bump actions/download-artifact from 6.0.0 to 8.0.0 
Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 6.0.0 to 8.0.0.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](https://github.com/actions/download-artifact/compare/v6...v8)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: 8.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
 2026-03-02 23:41:23 +00:00
dependabot[bot]
b7a4ddbcd5
Bump actions/cache from 4.3.0 to 5.0.3 
Bumps [actions/cache](https://github.com/actions/cache) from 4.3.0 to 5.0.3.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](https://github.com/actions/cache/compare/v4.3.0...v5.0.3)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: 5.0.3
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
 2026-03-02 23:40:54 +00:00
dependabot[bot]
a7e3635931
Bump actions/upload-artifact from 6.0.0 to 7.0.0 
Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 6.0.0 to 7.0.0.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v6...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: 7.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
 2026-03-02 23:40:26 +00:00
copilot-swe-agent[bot]
fbd3d445e2 Add clarifying comments for hash matrix overflow safety and cache validity 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-02 21:16:46 +00:00