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fixes related to #6577

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- enforce elim-and in bool-rewriter when invoking hoisting.
- make cnf tactic more resilient to non-normalized input.
- enable eliminate predicates on ground formulas
This commit is contained in:
Nikolaj Bjorner 2023-02-12 13:43:44 -08:00
parent ede9e5ffc2
commit cac5052685
5 changed files with 69 additions and 8 deletions
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5
src/ast/rewriter/bool_rewriter.h
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@ -81,7 +81,10 @@ class bool_rewriter {
void push_new_arg(expr* arg, expr_ref_vector& new_args, expr_fast_mark1& neg_lits, expr_fast_mark2& pos_lits);
public:
bool_rewriter(ast_manager & m, params_ref const & p = params_ref()):m_manager(m), m_hoist(m), m_local_ctx_cost(0) { updt_params(p); }
bool_rewriter(ast_manager & m, params_ref const & p = params_ref()):m_manager(m), m_hoist(m), m_local_ctx_cost(0) {
updt_params(p);
m_hoist.set(*this);
}
ast_manager & m() const { return m_manager; }
family_id get_fid() const { return m().get_basic_family_id(); }
bool is_eq(expr * t) const { return m().is_eq(t); }