* Initial plan
* Refactor der.cpp to use structured bindings for expression/index pairs
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Fix comment to refer to 'e' instead of 't' after structured binding refactor
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
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Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Initial plan
* Refactor sat_solver.cpp to use structured bindings for pairs
- Line 1398: Changed priorities[i].second to use [priority, var]
- Lines 2154-2156: Changed p.first/p.second to use [l1, l2] for binary clauses
- Lines 4182-4184: Eliminated intermediate l1, l2 variables using [l1, l2] binding
This modernizes the code to use C++17 structured bindings instead of .first/.second member accesses.
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
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Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Fix implicit conversion warnings: use UINT_MAX instead of -1 for unsigned variables
Replace implicit conversion from negative literal to unsigned type
with explicit UINT_MAX constant to eliminate compiler warnings.
Fixed 10 instances across 6 files:
- src/ast/rewriter/bv_rewriter.cpp: 1 instance
- src/ast/sls/sls_bv_tracker.h: 2 instances
- src/math/lp/dioph_eq.cpp: 3 instances
- src/math/lp/lp_primal_core_solver.h: 2 instances
- src/muz/transforms/dl_mk_array_instantiation.cpp: 1 instance
- src/muz/transforms/dl_mk_synchronize.cpp: 1 instance
These changes preserve the exact same runtime behavior (UINT_MAX
equals the wrapped value of -1 for unsigned types) while making
the code more explicit and warning-free.
* Update bv_rewriter.cpp
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Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
* Initial plan
* Refactor find_probe() to use std::optional
- Updated tactic_manager.h: Changed return type to std::optional<probe_info*>
- Updated tactic_manager.cpp: Modified implementation to return std::nullopt or probe pointer
- Updated api_tactic.cpp: Changed 2 call sites to use optional checks and dereference
- Updated tactic_cmds.cpp: Changed 1 call site to use optional check and dereference
- Build verified successfully
- Probe functionality tested with Python bindings
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
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Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
The undo_fixed_column struct is region-allocated via trail_stack, so its
destructor is never called. When m_fixed_val contains a big number (one
that doesn't fit in a small int), the heap-allocated memory for the mpq
numerator/denominator was never freed.
Fix by calling m_fixed_val.reset() in undo() to explicitly free the
heap memory before the region deallocates the struct.
Verified with macOS leaks tool:
- Before: 126 leaks (6048 bytes) on convert-jpg2gif-query-1584.smt2
- After: 0 leaks on normal completion, 10 leaks on timeout (unfinished trail)
* Initial plan
* Refactor find_fst_non_empty_var to use std::optional
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Use value_or() for more idiomatic std::optional usage
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
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Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Initial plan
* Refactor theory_char::get_char_value to use std::optional
- Updated function signature to return std::optional<unsigned>
- Added const qualifier to function
- Updated both call sites to use modern C++17 patterns
- Used std::as_const to disambiguate overload resolution
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
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Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* preserve the initial state of the solver with push/pop for multiple objectives
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* Fix memory corruption in Z3_polynomial_subresultants
The API function had a memory corruption bug where allocating the result
vector while the default_expr2polynomial converter was still in scope
could corrupt the converter's internal expr2var mapping.
Fixed by restructuring the code to:
1. Complete all polynomial computation in a scoped block
2. Store results in a temporary expr_ref_vector
3. Let the converter go out of scope
4. Then allocate and populate the result vector
Also improved the test to:
- Use randomized testing with 20 iterations
- Test both cases: variable in polynomials and variable not in polynomials
- Use proper reference counting (inc_ref before dec_ref)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
* Initial plan
* Refactor mk_and and mk_app to use std::span
- Made mk_and(unsigned num_args, expr * const * args) private
- Added new public mk_and(std::span<expr* const> args) method
- Added new public mk_app(family_id fid, decl_kind k, std::span<expr* const> args) method
- Updated all convenience overloads to use std::span version
- Updated all external call sites to use the new std::span API
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Fix remaining test files to use std::span API
- Updated src/test/sorting_network.cpp
- Updated src/test/ho_matcher.cpp with explicit cast to resolve ambiguity
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Revert overlapping changes superseded by PR #8286
Reverted 30 files to match the state from PR #8286 (commit ebc0688) which refactored mk_and/mk_or call sites to use vector overloads. This supersedes the std::span changes in those files.
Retained std::span changes in files unique to this PR:
- Core API changes (ast.h, ast.cpp)
- Files not affected by PR #8286 (api_context.cpp, ast_util.cpp, bool_rewriter.h, datatype_rewriter.cpp, dom_simplifier.cpp, factor_rewriter.cpp, pb2bv_rewriter.cpp, quant_hoist.cpp, spacer_cluster_util.cpp, sortmax.cpp, array_axioms.cpp, smtfd_solver.cpp, goal.cpp, ho_matcher.cpp, qe_arith.cpp, sorting_network.cpp)
- Special case in hnf.cpp where both PRs modified different lines
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Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Initial plan
* Refactor mk_and and mk_or call sites to use overloaded methods
Changed 130 call sites across 64 files to use vector overloads directly instead of manually passing .size() and .data()/.c_ptr()
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Revert mk_or changes for ptr_buffer/ptr_vector (no overload exists in ast_util.h)
* Fix compilation errors from mk_and/mk_or refactoring
Fixed type mismatches by:
- Removing m parameter for expr_ref_vector (ast_util.h has mk_and/mk_or(expr_ref_vector) overloads)
- Reverting changes for ref_buffer types (no overload exists in ast_util.h, only in ast.h for m.mk_and)
- Verified build succeeds and Z3 works correctly
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Fix test files to use correct mk_and/mk_or overloads
Changed test/doc.cpp and test/udoc_relation.cpp to use mk_and(expr_ref_vector) and mk_or(expr_ref_vector) without m parameter
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
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Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Initial plan
* Add try_get_value for std::map and use it in var_register.h and dioph_eq.cpp
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Add try_get_value overload for unordered_map with custom hash and use in lar_solver.cpp
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Remove redundant try_get_value template overload
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Remove std::map include and try_get_value overload from lp_utils.h
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
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Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
Without this, when the attributes parameter doesn't end with a newline, the
subsequent (assert ...) statement gets concatenated to the attributes
comment line, producing invalid SMT-LIB.
Signed-off-by: Josh Berdine <josh@berdine.net>
* Initial plan
* Update z3 codebase to use std::string_view (except z3++.h)
- Updated params.cpp/h to use string_view internally for parameter descriptions
- Updated trace.h/cpp to accept string_view for trace tag functions
- Updated hash.h/cpp to use string_view for string_hash function
- Updated all callers of string_hash to use string_view
- Properly handled nullptr to empty string_view conversions
- All tests passing
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Add missing string_view includes to headers
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