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Author SHA1 Message Date
Nikolaj Bjorner
0f4126f665 add filter for avoiding creating redundant disequality axioms 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-19 23:15:23 -07:00
Nikolaj Bjorner
1d928663de add reset method 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-19 22:57:59 -07:00
Nikolaj Bjorner
a895548b99 cleanup 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-19 16:39:41 -07:00
Nikolaj Bjorner
7a93e2296d coding nit 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-19 16:39:40 -07:00
Copilot
2ec305f206
port range regular expressions to snode from ZIPT (#9048) 
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-19 15:59:20 -07:00
Copilot
59bc9b17ea
theory_nseq: remove seq_state, embed tracked entries directly in prop_queue (#9045) 
* Remove seq_state: embed tracked_str_eq/tracked_str_mem directly in prop_queue

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

* theory_nseq: use type aliases for eq_item/mem_item instead of wrapper structs

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

* seq_model: validate_regex takes single tracked_str_mem, caller loops

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-19 14:45:53 -07:00
Copilot
8795bf06fb
theory_nseq: dispatch assign_eh on all seq predicate cases via m_axioms, add enqueue/dequeue_axiom with variant prop_item (#9040) 
* dispatch assign_eh cases via m_axioms: add prefix/suffix/contains true axioms

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

* fix build: remove stale snode_label_html declaration from seq_nielsen.h

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

* theory_nseq: add enqueue/dequeue_axiom + std::variant prop_item + relevant_eh

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
Co-authored-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-19 10:42:18 -07:00
CEisenhofer
109ab7d098 Fixed regex witness 2026-03-19 17:16:29 +01:00
CEisenhofer
d31968f0ad Added problematic case as unit-test 2026-03-19 17:09:51 +01:00
CEisenhofer
51f3996464 Create dummy sat-node to avoid problems in case the preprocessor solves the problem entirely 2026-03-19 16:02:51 +01:00
CEisenhofer
9f4e823c8b ... and another one... 2026-03-19 15:44:15 +01:00
CEisenhofer
4271bdad55 Another minterm bug 2026-03-19 15:12:22 +01:00
CEisenhofer
149a087f65 Strengthened diseq axiom 2026-03-19 11:14:07 +01:00
Copilot
f837651434
seq_nielsen: replace mk_fresh_var() with mk_fresh_var(sort* s) (#9037) 
* replace mk_fresh_var() with mk_fresh_var(sort* s) in seq_nielsen; fix snode_label_html linkage

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

* remove mk_var(symbol const&) from sgraph; update all callers to pass sort explicitly

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-18 20:41:41 -07:00
Nikolaj Bjorner
4b40969da6 added diseq 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-18 13:32:18 -07:00
Nikolaj Bjorner
a2352529f8 add diseq axiom 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-18 12:58:27 -07:00
CEisenhofer
777bda01a5 Subsolver was not reset properly 2026-03-18 20:22:08 +01:00
Nikolaj Bjorner
c43df60182 fix build of unit tests 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-18 10:29:41 -07:00
Nikolaj Bjorner
23b7e109bd partial updates to test 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-18 10:04:07 -07:00
Nikolaj Bjorner
8ac8eb4ae7 create sub-class for tracked eq and mem relations to separate from seq_nielsen 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-18 10:04:01 -07:00
CEisenhofer
e7431400b4 Regex bug fixes (still not there) 2026-03-18 18:01:44 +01:00
CEisenhofer
983379f5e2 Missing semicolon 2026-03-18 16:16:59 +01:00
CEisenhofer
0a32337f0a Removed some brackets 2026-03-18 16:15:37 +01:00
CEisenhofer
d8a6ea1321 Fixed crasb if regex is reported SAT by pre-check 2026-03-18 16:08:02 +01:00
CEisenhofer
579ac6bfc4 Updated script 2026-03-18 15:45:56 +01:00
CEisenhofer
43950569eb More fixes 2026-03-18 15:41:27 +01:00
CEisenhofer
b288c2e7dc Some more bug fixes 2026-03-18 14:54:12 +01:00
CEisenhofer
ab53889c10 Fixed couple of regex problems [there are still others] 2026-03-18 14:29:18 +01:00
Nikolaj Bjorner
b1bae695e6 comment 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-17 16:32:01 -07:00
Nikolaj Bjorner
2847dd8bb3 small simplification 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-17 16:30:53 -07:00
Nikolaj Bjorner
3719b449e8 re-organize dependencies 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-17 16:18:27 -07:00
Copilot
ef22ae8871
Replace dep_tracker uint_set with scoped_dependency_manager<dep_source> in seq_nielsen (#9014) 
* Initial plan

* replace dep_tracker uint_set with scoped_dependency_manager<dep_source>

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

* fix test build: update dep_tracker usages in test files and seq_state.h

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-16 15:52:18 -07:00
CEisenhofer
39bf6af870 Missing file edits 2026-03-16 21:10:40 +01:00
CEisenhofer
e439504ec8 Delete cached substitutions completely (for now) to avoid dangling pointers after backtracking 2026-03-16 21:04:47 +01:00
CEisenhofer
84d371f2e9 Bugfix in regex overapproximation 2026-03-16 19:54:12 +01:00
CEisenhofer
16f693b09a Regex intersection bug fixe 2026-03-16 16:30:20 +01:00
Nikolaj Bjorner
256f1bdf1a remove non-compiling timeout code 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-15 21:39:14 -07:00
Nikolaj Bjorner
32eedde897 disable rewrite that makes nseq solving harder 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-15 21:36:22 -07:00
Nikolaj Bjorner
db8a2f4f9e update print and cancelation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-15 20:43:49 -07:00
Nikolaj Bjorner
7dea14f732 move statistics 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-15 20:09:19 -07:00
Nikolaj Bjorner
d137f25b65 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-15 19:58:21 -07:00
Nikolaj Bjorner
d15aed0d04 code organization in theory_nseq 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-15 19:39:53 -07:00
Nikolaj Bjorner
a4c9a5b2b0 add review comments 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-15 12:23:17 -07:00
Copilot
1a8570ed3f
Refactor seq_nielsen: address NSB review comments (#8993) 
* Initial plan

* Refactor seq_nielsen: m_graph reference, accessor methods, seq_util.is_power, m.are_equal/are_distinct

- Add ast_manager& m_m and seq_util& m_seq members to nielsen_graph with accessors
- Change m_graph from pointer to reference in nielsen_node
- Remove redundant g parameter from simplify_and_init (use m_graph instead)
- Use seq.str.is_power() matcher in get_power_base/exp_expr and handle_empty_side
- Use m.are_equal/are_distinct for E-graph-aware token comparison
- Fix seq.is_const_char unchecked return value
- Simplify has_char/all_eliminable loop with std::any_of/all_of
- Fix rebuilt=nullptr pattern in merge_adjacent_powers and simplify_const_powers
- Add formal Spec: comments for DirectionalInconsistency and CommPower cancellation
- Remove addressed NSB review comments

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix CI: update test files for simplified simplify_and_init signature

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-15 10:35:45 -07:00
Copilot
d53846d501
nseq: port ZIPT regex pre-check to fix benchmark discrepancy on regex-only problems (#8994) 
* Initial plan

* Port ZIPT regex pre-check and DFS node budget to address nseq benchmark discrepancy

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-15 10:10:53 -07:00
Copilot
2212f59704
seq_model: address NSB review comments (#8995) 
* Initial plan

* Address NSB review comments in seq_model.cpp

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

* Address code review feedback: improve null-sort handling in seq_model and some_seq_in_re

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
 2026-03-14 21:55:32 -07:00
Nikolaj Bjorner
6947698d65 add notes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-14 16:03:04 -07:00
Nikolaj Bjorner
b5dae574ad add review notes to seq_model 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-14 15:49:00 -07:00
Nikolaj Bjorner
4c64c82cef update workflow 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-14 12:32:29 -07:00
Nikolaj Bjorner
40b9d80ae5 more review 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2026-03-14 12:20:01 -07:00