* outline of signature for assignment based conflict generation
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* outline of interface contract
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* remove confusing construction
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* add material in nra-solver to interface
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* add marshaling from nlsat lemmas into core solver
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* tidy
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* add call to check-assignment
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* Nl2lin (#7795)
* add linearized projection in nlsat
* implement nlsat check for given assignment
* add some comments
* fixup loop
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* updates
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* fixes
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* debug nl2lin
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* Nl2lin (#7827)
* fix linear projection
* fix linear projection
* use an explicit cell description in check_assignment
* clean up (#7844)
* Simplify no effect checks in nla_core.cpp
Move up linear nlsat call to replace bounded nlsat.
* t
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t
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* detangle mess
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* remove the too early return
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* do not set use_nra_model to true
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* remove a comment
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* add a hook to add new multiplication definitions in nla_core
* add internalization routine that uses macro-expanded polynomial representation
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* add internalization routine that uses macro-expanded polynomial representation
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* fixup backtranslation to not use roots
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* call setup_assignment_solver instead of setup_solver
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* debug the setup, still not working
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* updated clang format
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* simplify
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* create polynomials with integer coefficients, use the hook to create new monomials
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* integrating changes from master related to work with polynomials
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* add forgotten files
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* Update nlsat_explain.cpp
Remove a duplicate call
* fix
* move linear cell construction to levelwise
* fix
* fix
* Port throttle and soundness fixes from master
- Fix soundness: pop incomplete lemma from m_lemmas on add_lemma failure
- Gracefully handle root atoms in add_lemma
- Throttle check_assignment with failure counter (decrement on success)
- Add arith.nl.nra_check_assignment parameter
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* Add arith.nl.nra_check_assignment_max_fail parameter
Replace hardcoded failure threshold with configurable parameter (default 10).
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* Add cha_abort_on_fail parameter to control failure counter decrement
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* abort nla check_assignment after a set number of allowed failures
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* Add missing AST query methods to Java API (#8977)
* add Expr.isGround() to Java API
Expose Z3_is_ground as a public method on Expr. Returns true when the
expression contains no free variables.
* add Expr.isLambda() to Java API
Expose Z3_is_lambda as a public method on Expr. Returns true when the
expression is a lambda quantifier.
* add AST.getDepth() to Java API
Expose Z3_get_depth as a public method on AST. Returns the maximum
number of nodes on any path from root to leaf.
* add ArraySort.getArity() to Java API
Expose Z3_get_array_arity as a public method on ArraySort. Returns
the number of dimensions of a multi-dimensional array sort.
* add DatatypeSort.isRecursive() to Java API
Expose Z3_is_recursive_datatype_sort as a public method on
DatatypeSort. Returns true when the datatype refers to itself.
* add FPExpr.isNumeral() to Java API
Expose Z3_fpa_is_numeral as a public method on FPExpr. Returns true
when the expression is a concrete floating-point value.
* add isGroundExample test to JavaExample
Test Expr.isGround() on constants, variables, and compound
expressions.
* add astDepthExample test to JavaExample
Test AST.getDepth() on leaf nodes and nested expressions to verify
the depth computation.
* add arrayArityExample test to JavaExample
Test ArraySort.getArity() on single-domain and multi-domain array
sorts.
* add recursiveDatatypeExample test to JavaExample
Test DatatypeSort.isRecursive() on a recursive list datatype and a
non-recursive pair datatype.
* add fpNumeralExample test to JavaExample
Test FPExpr.isNumeral() on a floating point constant and a symbolic
variable.
* add isLambdaExample test to JavaExample
Test Expr.isLambda() on a lambda expression and a plain variable.
* change the default number of failures in check_assignment to 7
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* Fix high and medium priority API coherence issues (Go, Java, C++, TypeScript) (#8983)
* Initial plan
* Add missing API functions to Go, Java, C++, and TypeScript bindings
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>
* qf-s-benchmark: debug build + seq tracing + seq-fast/nseq-slow trace analysis (#8988)
* Initial plan
* Update qf-s-benchmark: debug build, seq tracing, trace analysis
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>
* disable linear approximation by default to check the merge
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* set check_assignment to true
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* fix restore_x by recalulating new column values
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* fix restore_x by recalulating new column values
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* fix a memory leak
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
---------
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
Co-authored-by: Nikolaj Bjorner <nbjorner@microsoft.com>
Co-authored-by: ValentinPromies <44966217+ValentinPromies@users.noreply.github.com>
Co-authored-by: Valentin Promies <valentin.promies@rwth-aachen.de>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Angelica Moreira <48168649+angelica-moreira@users.noreply.github.com>
Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com>
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* t0
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t1
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t2
* scaffoldin
* scaffolding
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* closer to the paper
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* more scaffolding
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* define symbolic_interval
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* use std::map instead of std::unordered_map
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* more accurate init of the relation between polynomial properties
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t
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* pass anum_manager to levelwise, crash on sign
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* pass pmanager
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* create free function display functions
* use new display functions
* pass nlsat::solver to levelwise
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* add trace tag for levelwise
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* refactor
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* refactor
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* define indexed root expression
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* refact lws
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* refact lws
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* refactor lws
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* trying to figure out right indices
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* rename explain::main_operator to compute_conflict_explanation
* preprocess the input of levelwise to drop a level
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* ttt
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* renaming
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* rename
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* work on seed_properties
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* work on seed_properties
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* work on seed_properties
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* move a comment
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t
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* t
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* t
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* t
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* t
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* t
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* t
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* t
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* t
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* t
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* simplify
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* simplify
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* debug
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* refactor and assert _irreducible
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* add a display method
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t
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* t
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* t
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* t
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* t
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* t
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* simplify
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* simplify
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* remove erase_from_Q
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* ignore holds properties
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t
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* t
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* t
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* t
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* t
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* t
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* t
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* t
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* got a section
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t
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* introdure mk_prop
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t
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* t
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* remove a parameter
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* t
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* t
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* t
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* t
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* add parameter to suppress/enable levelwise
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* comment
* t
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* fixing factoring and hitting NOT_IMPLEMENTED on ir_ord
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* adding ir_ord
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* produce more literals but creating sat lemmas
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* try iterative factoring
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* new file
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* create irreducible polynomials on init
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* add a guard on m_fail
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* process level 0 as well
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* remove a warning
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* debug
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* prepare to fill the relation
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* filling the relation
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* separate the lower and upper bound root functions
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* fix an assert statement
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* create a better queue on properties
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* normalize before pushing
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* relax an assert
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* rebase with master
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* add stats to track levelwise calls
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* catch and fail on an exception
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* fix a bug in Rule 4.2
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* remove debug instruction
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* call levelwise on a correct set of polynomials
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* cosmetics
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* use polynomial_ref instead of poly*
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* do not refactor again multivariate polynomials
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* canonicalize polinomals in todo_set
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* t
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* t
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* canonicalize polynomials in nlsat
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t
* normalize polynomials
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* try not to fail in add_sgn_inv_leading_coeff_for
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* use the cache consistently
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* unsound state
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* unsound state
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* handle the zero case in add_ord_inv_resultant
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* optimizations by using cached psc
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* make normalize optional
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* Revert "make normalize optional"
This reverts commit c80cfb0b8e3e260aec6dabaf2e686e347b514896.
* t
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* cleanup and more caching
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t
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* better sort of root functions
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* index bug
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* with resultant calculation ignore one of p and q with a common root
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* fix the duplicate bug
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t
* simplify by removing back propagation
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* t
* t
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* t
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* hook up different relation build strategies for lws
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* introduce isolate_root_closest
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* fix a bug with non-adding ldcf
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* simple choice of non-vanishing
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* restore choose_non_zero_coeff
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* efficient sort of root functions
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* avoid ldcf with the projective theorem
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* omit some disc
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* use std_vector more
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* avoid a compare call
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* try optimizing build_interval_and_relation
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* discard a discriminant only in the section case
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* refactor
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* refactor
* refactor
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* cache the polynomial roots
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* Revert "cache the polynomial roots"
This reverts commit aefcd16aaad2cbd4de804c8de47678886eb8ba92.
* ignore const non-null witnesses
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* toward more like SMT-RAT split
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* align with SMT-RAT
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* t
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* disables some heuristics in section
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* Implement chain noLdcf optimization matching SMT-RAT
Add find_partition_boundary() helper to locate the boundary between
lower and upper root partitions in m_rfunc.
Implement compute_omit_lc_sector_chain() and compute_omit_lc_section_chain()
following SMT-RAT's OneCellCAD.h logic:
- Omit ldcf for extreme of lower chain (index 0) if it appears on upper side
- Omit ldcf for extreme of upper chain (last index) if it appears on lower side
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Restrict noDisc optimization to section_lowest_degree only
Match SMT-RAT behavior: noDisc (discriminant omission for leaves
connected only to section polynomial) is only applied for
sectionHeuristic == 3 (lowest_degree), not for biggest_cell or chain.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Cache partition boundary to avoid repeated algebraic number comparisons
Store the partition boundary (index of first root > sample) in
relation_E after sorting root functions. Use this cached value
in compute_omit_lc_sector_chain() and compute_omit_lc_section_chain()
instead of recomputing via algebraic number comparisons.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Refactor levelwise: consolidate partition indices into m_l_rf/m_u_rf
Replace scattered local l_index/u_index parameters and m_partition_boundary
with two impl members:
- m_l_rf: position of lower bound in m_rel.m_rfunc
- m_u_rf: position of upper bound in m_rel.m_rfunc (UINT_MAX in section case)
This simplifies the code by:
- Removing parameter passing through multiple function calls
- Removing redundant m_partition_boundary from relation_E
- Making the partition state explicit in impl
Also clean up nlsat_explain.cpp to trust root_function_interval invariants:
- Section case: assert l and l_index are valid instead of defensive check
- Sector bounds: !l_inf()/!u_inf() implies valid polynomial and index
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Refactor levelwise: use member variables for per-level state
Replace local variables and function parameters with member variables:
- m_level_ps: polynomials at current level (owned)
- m_level_tags: tags for each polynomial (owned)
- m_witnesses: non-zero coefficient witnesses
- m_poly_has_roots: which polynomials have roots
- m_todo: pointer to todo_set
Functions now use these member variables directly:
- extract_max_tagged() fills m_level_ps/m_level_tags and sets m_level
- process_level() and process_top_level() are now parameterless
- All helper functions use member variables instead of parameters
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Refactor levelwise: change m_todo from pointer to member
- Change m_todo from todo_set* to todo_set
- Initialize m_todo in constructor initializer list
- Use m_todo.reset() in single_cell_work instead of creating local todo_set
- Replace pointer access (m_todo->) with member access (m_todo.)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* Add dynamic heuristic selection for levelwise projection
Implement weight-based dynamic selection of projection heuristics in
levelwise CAD. The weight function w(p, level) = deg(p, level) estimates
projection complexity, with w(res(a,b)) ≈ w(a) + w(b).
At each level, all three heuristics (biggest_cell, chain, lowest_degree)
are evaluated and the one with minimum estimated resultant weight is
selected. When fewer than 2 root functions exist, the default heuristic
is used since all produce equivalent results.
Add parameter nlsat.lws_dynamic_heuristic (default: true) to enable or
disable dynamic selection. When disabled, the static heuristic from
lws_sector_rel_mode/lws_section_rel_mode is used.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* local optimization
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* call omit_lc only when both bounds are present
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* use std_vector
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* remove m_level_tags
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* count added lcs in the heuriistic estimates
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* add both side spanning tree heuristic
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* Fix nlsat projection bug: ensure polynomials with assumptions are also projected
When polynomials are added as assumptions (via add_assumption or ensure_sign),
they must also be added to the projection set (m_todo) to ensure proper cell
construction. Previously, assumptions were added without corresponding projection,
leading to unsound lemmas.
Fixes:
1. In normalize(): collect lower-stage polynomials in m_lower_stage_polys and
add them to m_ps in main() before projection.
2. In ensure_sign(): call insert_fresh_factors_in_todo(p) after adding assumption.
3. In project_cdcac(): when levelwise fails, use flet to set m_add_all_coeffs=true
for the fallback projection.
* Remove deprecated project_original and cell_sample parameter
- Remove project_original() function from nlsat_explain.cpp
- Remove m_sample_cell_project member variable
- Simplify project() to just call project_cdcac()
- Remove cell_sample parameter from nlsat_params.pyg
- Update nlsat_solver.cpp to remove cell_sample() references
- Update nlsat_explain.h constructor signature
* Enforce bound polynomial LC protection in compute_omit_lc functions
Move the invariant that bound-defining polynomials must never have their
LC omitted from add_level_projections_sector() into the source functions:
- compute_omit_lc_both_sides()
- compute_omit_lc_chain_extremes()
This centralizes the protection and removes the redundant override check.
* fix the build
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* bug fixes
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* restore a deleted function
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* remove sector/section stats
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* Simplify levelwise: remove chain/lowest_degree heuristics, unify relation
mode
- Remove chain and lowest_degree heuristics, keep only biggest_cell and spanning_tree
- Unify m_sector_relation_mode and m_section_relation_mode into single m_rel_mode
- Remove lws_rel_mode, lws_sector_rel_mode, lws_section_rel_mode, lws_dynamic_heuristic params
- lws_spt_threshold < 2 now disables spanning tree (single tuning parameter)
- Restore noDisc optimization for spanning_tree leaves connected to boundary
- Add noDisc for sector with same_boundary_poly (treat like section case)
- Significant code reduction (~390 lines removed)
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* fix bug with skipping too many discriminants
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* t
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* simplifications and bug fixes in lws, use static_tree only with sector + different bound polynomials, otherwise us biggest cell
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* bug fixes and cleanup
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* add the discriminant in degenerated case
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* fix a bug with skipping a vanishing discriminant
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* remove the unsound optimization
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* fiddle with heuristics
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* preserve random seed in nlsat_solver::check_lemma
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* fix a typo in poly_has_roots
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* add lc(p) and disc(p) for a rootless p in section case
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* remove warnings
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* untracking .beads
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* fix the explosion in m_todo with lws.false
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* fix issue 8397
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* set default to nlsat.lws=false for the merge with master
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
* set nlsat.lws=true by default, enable levelwise
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
---------
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
