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increase build version, better propagation in euf-egraph, handle assumptions in sat.smt

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- increase build version to 4.12.1. This prepares updated release for MacOs-11 build on x86
- move literal propagation mode in euf-egraph to a callback and traversal of equivalence class. Track antecedent by newest equality instead of root. This makes equality propagation to literals have similar behavior as in legacy solver and appears to result in a speedup (10% fewer conflicts on QF_UF/QG-classification/qg5/iso_icl478.smt2 in preliminary testing)
- fix interaction of pre-processing and assumptions. Pre-processing has to freeze assumption literals so they don't get eliminated. This is similar to dependencies that are already frozen.
This commit is contained in:
Nikolaj Bjorner 2023-01-17 14:07:07 -08:00
parent c8f197d0ca
commit 7368f9f7d3
22 changed files with 201 additions and 162 deletions
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2
src/ast/simplifiers/dependent_expr_state.h
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@ -51,7 +51,6 @@ class dependent_expr_state {
void freeze_recfun();
void freeze_lambda();
void freeze_terms(expr* term, bool only_as_array, ast_mark& visited);
void freeze(expr* term);
void freeze(func_decl* f);
struct thaw : public trail {
unsigned sz;
@ -89,6 +88,7 @@ public:
/**
* Freeze internal functions
*/
void freeze(expr* term);
bool frozen(func_decl* f) const { return m_frozen.is_marked(f); }
bool frozen(expr* f) const { return is_app(f) && m_frozen.is_marked(to_app(f)->get_decl()); }
void freeze_suffix();