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merge useful utilities from qsat

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-03-19 12:01:44 -07:00
parent f951372f03
commit f175f864ec
32 changed files with 323 additions and 38 deletions
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28
src/ast/expr_abstract.cpp
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@ -22,6 +22,10 @@ Notes:
void expr_abstractor::operator()(unsigned base, unsigned num_bound, expr* const* bound, expr* n, expr_ref& result) {
if (num_bound == 0) {
result = n;
return;
}
expr * curr = 0, *b = 0;
SASSERT(n->get_ref_count() > 0);
@ -106,3 +110,27 @@ void expr_abstract(ast_manager& m, unsigned base, unsigned num_bound, expr* cons
expr_abstractor abs(m);
abs(base, num_bound, bound, n, result);
}
expr_ref mk_quantifier(bool is_forall, ast_manager& m, unsigned num_bound, app* const* bound, expr* n) {
expr_ref result(m);
expr_abstract(m, 0, num_bound, (expr* const*)bound, n, result);
if (num_bound > 0) {
ptr_vector<sort> sorts;
svector<symbol> names;
for (unsigned i = 0; i < num_bound; ++i) {
sorts.push_back(m.get_sort(bound[i]));
names.push_back(bound[i]->get_decl()->get_name());
}
result = m.mk_quantifier(is_forall, num_bound, sorts.c_ptr(), names.c_ptr(), result);
}
return result;
}
expr_ref mk_forall(ast_manager& m, unsigned num_bound, app* const* bound, expr* n) {
return mk_quantifier(true, m, num_bound, bound, n);
}
expr_ref mk_exists(ast_manager& m, unsigned num_bound, app* const* bound, expr* n) {
return mk_quantifier(false, m, num_bound, bound, n);
}