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update unstable branch with qhc changes that don't have dependencies

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2012-12-10 11:13:04 -08:00
parent 7f210d55be
commit 271c143de5
11 changed files with 1881 additions and 1059 deletions
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15
src/muz_qe/dl_mk_array_blast.cpp
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@ -18,7 +18,8 @@ Revision History:
--*/
#include "dl_mk_array_blast.h"
#include "expr_replacer.h"
#include "expr_safe_replace.h"
namespace datalog {
@ -54,9 +55,10 @@ namespace datalog {
unsigned tsz = r.get_tail_size();
expr_ref_vector conjs(m), new_conjs(m);
expr_ref tmp(m);
expr_substitution sub(m);
expr_safe_replace sub(m);
uint_set lhs_vars, rhs_vars;
bool change = false;
bool inserted = false;
for (unsigned i = 0; i < utsz; ++i) {
new_conjs.push_back(r.get_tail(i));
@ -81,6 +83,7 @@ namespace datalog {
}
else {
sub.insert(x, y);
inserted = true;
}
}
else {
@ -89,7 +92,7 @@ namespace datalog {
new_conjs.push_back(tmp);
}
}
if (sub.empty() && !change) {
if (!inserted && !change) {
rules.add_rule(&r);
return false;
}
@ -99,11 +102,9 @@ namespace datalog {
r.to_formula(fml1);
body = m.mk_and(new_conjs.size(), new_conjs.c_ptr());
head = r.get_head();
scoped_ptr<expr_replacer> replace = mk_default_expr_replacer(m);
replace->set_substitution(&sub);
(*replace)(body);
sub(body);
m_rewriter(body);
(*replace)(head);
sub(head);
m_rewriter(head);
fml2 = m.mk_implies(body, head);
rm.mk_rule(fml2, new_rules, r.name());