Nikolaj Bjorner 636b3b0a6b Add Phase 5: regex membership checking via derivatives ... - check_regex_memberships: iterate regex constraints in final_check - check_regex_mem: for ground strings, compute Brzozowski derivatives and check nullable - derive_regex: step-by-step derivative of regex w.r.t. string prefix - is_ground_string: resolve string value through e-graph roots - Handles positive (str.in_re) and negative (not str.in_re) memberships - Uses seq_rewriter::mk_derivative and is_nullable (existing Z3 infrastructure) - No regressions on string-concat.smt2 (36/62 correct, 0 wrong) Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>		2026-02-28 10:06:36 -08:00
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ackermannization	Fix off-by-one vulnerabilities: use range-based for on goals; cache loop bound	2026-02-19 22:37:22 +00:00
api	Add missing API functions to Go, OCaml, and TypeScript bindings	2026-02-27 02:55:37 +00:00
ast	Add Phase 3: Nielsen transformation engine and equation solving	2026-02-27 18:01:08 -08:00
cmd_context	Remove redundant default constructors when they're the only constructor (#8461)	2026-02-18 20:58:01 -08:00
math	Eliminate unnecessary copy operations in function parameters and range-based loops (#8589)	2026-02-18 21:02:22 -08:00
model	Remove redundant default constructors when they're the only constructor (#8461)	2026-02-18 20:58:01 -08:00
muz	Eliminate unnecessary copies with std::move for ref-counted types (#8591)	2026-02-18 21:02:24 -08:00
nlsat	remove an unnecessary template from levelwise	2026-02-25 07:03:23 -10:00
opt	Refactor optimization and model to use C++17 structured bindings for pairs (#8426)	2026-02-18 20:57:59 -08:00
params	Add theory_nseq skeleton: new string solver selectable via smt.string_solver=nseq	2026-02-27 17:00:59 -08:00
parsers	Revert "Refactor find_psort_decl() to return std::optional<psort_decl*> (#8339)"	2026-02-18 20:57:56 -08:00
qe	Fix true positive critical bugs from static analysis discussion #8764	2026-02-25 00:41:59 +00:00
sat	Merge pull request #8767 from Z3Prover/copilot/fix-ubv-to-int-bug	2026-02-25 13:32:40 -08:00
shell	Standardize for-loop increments to prefix form (++i) (#8199)	2026-02-18 20:57:29 -08:00
smt	Add Phase 5: regex membership checking via derivatives	2026-02-28 10:06:36 -08:00
solver	Remove copies (#8583)	2026-02-18 21:02:22 -08:00
tactic	Merge pull request #8779 from Z3Prover/copilot/convert-bv1-blast-to-simplifier	2026-02-26 15:52:18 -08:00
test	Merge pull request #8789 from Z3Prover/succ_int_mult	2026-02-27 09:45:26 -10:00
util	Fix true positive critical bugs from static analysis discussion #8764	2026-02-25 00:41:59 +00:00
CMakeLists.txt	git bindings v1.0	2026-02-18 21:02:25 -08:00