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allow propagation on equalities and literals that are not assigned.

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This commit is contained in:
Nikolaj Bjorner 2023-12-07 19:43:08 -08:00
parent 44506096f7
commit 971594baec
5 changed files with 114 additions and 60 deletions
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5
src/sat/smt/polysat_solver.h
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@ -42,6 +42,7 @@ namespace polysat {
struct atom {
bool_var m_bv;
unsigned m_index = 0;
signed_constraint m_sc;
atom(bool_var b) :m_bv(b) {}
~atom() { }
@ -91,7 +92,7 @@ namespace polysat {
void erase_bv2a(bool_var bv) { m_bool_var2atom[bv] = nullptr; }
atom* get_bv2a(bool_var bv) const { return m_bool_var2atom.get(bv, nullptr); }
class mk_atom_trail;
atom* mk_atom(sat::bool_var bv);
atom* mk_atom(sat::literal lit, signed_constraint& sc);
void set_bit_eh(theory_var v, literal l, unsigned idx);
void init_bits(expr* e, expr_ref_vector const & bits);
void mk_bits(theory_var v);
@ -133,6 +134,8 @@ namespace polysat {
void set_conflict(dependency_vector const& core);
void set_lemma(vector<signed_constraint> const& lemma, unsigned level, dependency_vector const& core);
void propagate(signed_constraint sc, dependency_vector const& deps);
void propagate(solver_assertion as, bool sign, dependency_vector const& deps);
void add_lemma(vector<signed_constraint> const& lemma);
std::pair<sat::literal_vector, euf::enode_pair_vector> explain_deps(dependency_vector const& deps);