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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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11
src/sat/smt/polysat_internalize.cpp
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@ -169,12 +169,15 @@ namespace polysat {
}
};
solver::atom* solver::mk_atom(sat::bool_var bv) {
solver::atom* solver::mk_atom(sat::literal lit, signed_constraint& sc) {
auto bv = lit.var();
atom* a = get_bv2a(bv);
if (a)
return a;
a = new (get_region()) atom(bv);
insert_bv2a(bv, a);
a->m_sc = sc;
a->m_index = m_core.register_constraint(sc, lit);
ctx.push(mk_atom_trail(bv, *this));
return a;
}
@ -184,7 +187,7 @@ namespace polysat {
auto q = expr2pdd(e->get_arg(1));
auto sc = ~fn(p, q);
sat::literal lit = expr2literal(e);
mk_atom(lit.var())->m_sc = sc;
auto* a = mk_atom(lit, sc);
}
void solver::internalize_div_rem_i(app* e, bool is_div) {
@ -277,6 +280,7 @@ namespace polysat {
template<bool Signed, bool Rev, bool Negated>
void solver::internalize_le(app* e) {
SASSERT(e->get_num_args() == 2);
auto p = expr2pdd(e->get_arg(0));
auto q = expr2pdd(e->get_arg(1));
if (Rev)
@ -286,8 +290,7 @@ namespace polysat {
sc = ~sc;
sat::literal lit = expr2literal(e);
atom* a = mk_atom(lit.var());
a->m_sc = sc;
atom* a = mk_atom(lit, sc);
}
void solver::internalize_bit2bool(atom* a, expr* e, unsigned idx) {