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Author SHA1 Message Date
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
copilot-swe-agent[bot]
cfea2db8bf Update sgraph and seq_plugin: egraph ref, hash matrix, subst cache, sgraph pointer 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-02 21:14:34 +00:00
copilot-swe-agent[bot]
425d3aec25 Port Nielsen graph framework from ZIPT: constraint types, node/edge/graph structures with tests 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-02 21:00:40 +00:00
copilot-swe-agent[bot]
1885753690 Initial plan 2026-03-02 20:39:17 +00:00
Nikolaj Bjorner
5ca200ba2c
Update ZIPT link in euf_sgraph.h documentation 2026-03-02 12:32:32 -08:00
copilot-swe-agent[bot]
2e9ca78396 Initial plan 2026-03-02 20:31:40 +00:00
Nikolaj Bjorner
8d05ab56a1
Merge pull request #8827 from Z3Prover/copilot/finish-pending-tasks-8820 
Address review feedback from PR #8820 and implement snode/sgraph operations
 2026-03-02 12:27:19 -08:00
copilot-swe-agent[bot]
1274a1e3c0 Add safety cap on minterm computation and assertion for invariant 
Co-authored-by: NikolajBjorner <56730610+NikolajBjorner@users.noreply.github.com>
 2026-03-02 19:29:41 +00:00
copilot-swe-agent[bot]
150f1fe2ea Revert is_concat changes, add ZIPT URL, implement snode/sgraph operations and tests 
- Revert is_str_concat/is_re_concat to original form (PR #8820 review)
- Add ZIPT URL (https://github.com/CEisenhofer/ZIPT) to euf_sgraph.h
- Add snode::at() for token indexing and collect_tokens() for enumeration
- Add sgraph factory methods: mk_var, mk_char, mk_empty, mk_concat
- Add sgraph drop operations: drop_first, drop_last, drop_left, drop_right
- Add sgraph substitution: subst(snode*, snode*, snode*)
- Add Brzozowski derivative via seq_rewriter::mk_derivative
- Add minterm computation from regex predicates
- Add 7 new unit tests covering all new operations with complex concats

Co-authored-by: NikolajBjorner <56730610+NikolajBjorner@users.noreply.github.com>
 2026-03-02 19:28:32 +00:00
copilot-swe-agent[bot]
40b99311e3 Fix enode_concat_eq leaf comparison, simplify is_str/re_concat, update sgraph summary 
Address remaining review feedback from PR #8820:
- Use pointer comparison instead of ID comparison in enode_concat_eq
- Remove redundant num_args() == 2 check from is_str_concat/is_re_concat
- Update euf_sgraph.h abstract to detail seq_plugin features

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-02 18:58:21 +00:00
Nikolaj Bjorner
96285b0f91
Merge pull request #8824 from Z3Prover/copilot/fix-issues-except-rust 
Fix issues reported in discussion 8823 for all languages except Rust
 2026-03-02 10:35:31 -08:00
copilot-swe-agent[bot]
5bbeedaff0 Initial plan 2026-03-02 18:32:56 +00:00
Nikolaj Bjorner
5e39ee8911
Merge pull request #8820 from Z3Prover/copilot/encapsulate-strings-in-euf-sgraph 
Add string graph encapsulation (euf_sgraph/snode), OP_SEQ_POWER, and euf_seq_plugin
 2026-03-02 10:32:26 -08:00
Nikolaj Bjorner
94809d413a
Merge pull request #8825 from Z3Prover/copilot/fix-reported-issues-8822 
Fix CSA-reported undefined behavior and uninitialized variables
 2026-03-02 10:03:16 -08:00
copilot-swe-agent[bot]
8c0be6e614 Changes before error encountered 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-02 17:50:49 +00:00
copilot-swe-agent[bot]
a3baae5942 Changes before error encountered 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-02 17:01:49 +00:00
copilot-swe-agent[bot]
037d2da801 Distinguish is_re_concat/is_str_concat and mk_re_concat/mk_str_concat in euf_seq_plugin 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-02 16:34:29 +00:00
copilot-swe-agent[bot]
1461a53347 Fix TypeScript Array.fromFunc to use f.ptr instead of f.ast for Z3_func_decl type 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-02 16:22:08 +00:00
copilot-swe-agent[bot]
921260ae82 Fix propagate_assoc find/else logic for hash table 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-02 00:38:04 +00:00
copilot-swe-agent[bot]
82051ac4d8 Reuse seq_rewriter::is_nullable, add assoc hash table to seq_plugin propagate_assoc 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-02 00:36:52 +00:00
copilot-swe-agent[bot]
28fbe33114 Add missing API bindings: Python BvNand/BvNor/BvXnor, Go MkAsArray/MkRecFuncDecl/AddRecDef/Model.Translate, TS Array.fromFunc/Model.translate, OCaml Model.translate 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-02 00:21:57 +00:00
copilot-swe-agent[bot]
8e94cad8ab Fix static analysis findings: uninitialized vars, bitwise shift UB, garbage values 
- nla_core.cpp: Initialize j = null_lpvar in is_octagon_term
- bit2int.cpp: Initialize sign_p, sign_n, sz_p, sz_n
- act_cache.cpp: Initialize debug vars to nullptr
- enum2bv_rewriter.cpp: Use unsigned literal in 1u << idx
- bit_matrix.cpp: Use unsigned literal in 1u << (n-1)
- bit_util.cpp: Guard against bit_shift == 0 in shl/shr
- mpff.cpp: Cast exp to unsigned before shifting
- sorting_network.h: Guard against bits == 0
- dl_sparse_table.h: Use >= 64 instead of == 64

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-02 00:13:55 +00:00
copilot-swe-agent[bot]
3150b41724 Add self-contained unit tests for sgraph (13 tests covering classification, metadata, push/pop, assoc hash, navigation) 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-02 00:12:43 +00:00
copilot-swe-agent[bot]
122ee94935 Initial plan 2026-03-02 00:06:13 +00:00
copilot-swe-agent[bot]
8fad12fe18 Initial plan 2026-03-02 00:05:23 +00:00
copilot-swe-agent[bot]
6ef3be4e5e Remove sgraph dependency from seq_plugin, let sgraph register nodes via on_make callback 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-01 23:50:48 +00:00
copilot-swe-agent[bot]
b8656d4fbe Address code review: add comments for collect_leaves, find_assoc_equal, and display 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-01 23:24:59 +00:00
copilot-swe-agent[bot]
5c14edf030 Change ownership: sgraph owns egraph with seq_plugin, add assoc hash table, add unit tests 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-01 23:23:12 +00:00
copilot-swe-agent[bot]
12b7a4dae3 Remove unused old_qhead variable in seq_plugin::propagate 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-01 21:51:00 +00:00
copilot-swe-agent[bot]
78a4e3001b Add euf_seq_plugin: string plugin for egraph with concat associativity and ZIPT simplifications 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-01 21:50:06 +00:00
copilot-swe-agent[bot]
51f4f918ea Update file header years from 2025 to 2026 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-01 21:17:08 +00:00
copilot-swe-agent[bot]
17099300f2 Add co-author Clemens Eisenhofer to headers, document ZIPT features not yet ported 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-01 21:14:52 +00:00
Nikolaj Bjorner
dcb888d4c8
Merge pull request #8821 from Z3Prover/copilot/update-clang-analyzer-timeout 
Increase Clang Static Analyzer workflow timeout to 180 minutes
 2026-03-01 12:40:41 -08:00
copilot-swe-agent[bot]
e4f9a517e4 Address code review: fix const-correctness, improve child registration, add comments 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-01 20:25:18 +00:00
copilot-swe-agent[bot]
2e17bb8767 Add OP_SEQ_POWER to seq_decl_plugin and create euf_snode/euf_sgraph for string graph encapsulation 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-01 20:19:37 +00:00
copilot-swe-agent[bot]
51c84fb295 Increase Clang Static Analyzer workflow timeout from 90 to 180 minutes 
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-01 20:18:45 +00:00
copilot-swe-agent[bot]
af201a8faf Initial plan 2026-03-01 20:14:45 +00:00
Nikolaj Bjorner
8a6d22d3f1
Merge pull request #8813 from Z3Prover/copilot/fix-issues-in-multiple-languages 
Fix API discrepancies for Go, Python bindings
 2026-03-01 12:09:23 -08:00
copilot-swe-agent[bot]
debe81ee74 Initial plan 2026-03-01 19:51:18 +00:00
Nikolaj Bjorner
844731d99a
Merge pull request #8814 from Z3Prover/copilot/simplify-def-ref-smart-pointer 
Simplify def_ref smart pointer in model_based_opt.h
 2026-03-01 04:47:37 -08:00