mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-08-04 02:10:23 +00:00
Code Activity

debugging imdds and fixed bug in horn subsumption model transformer

Browse source 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2012-10-10 17:56:37 -07:00
parent a50d8d6b6c
commit 233f7fd53b
14 changed files with 297 additions and 70 deletions
Download patch file Download diff file Expand all files Collapse all files

37
lib/horn_subsume_model_converter.cpp
View file

@ -23,6 +23,7 @@ Revision History:
#include "ast_pp.h"
#include "model_smt2_pp.h"
#include "bool_rewriter.h"
#include "th_rewriter.h"
void horn_subsume_model_converter::insert(app* head, expr* body) {
func_decl_ref pred(m);
@ -174,19 +175,49 @@ bool horn_subsume_model_converter::mk_horn(
}
}
void horn_subsume_model_converter::add_default_proc::operator()(app* n) {
//
// predicates that have not been assigned values
// in the Horn model are assumed false.
//
if (m.is_bool(n) &&
!m_md->has_interpretation(n->get_decl()) &&
(n->get_family_id() == null_family_id)) {
TRACE("dl_mc", tout << "adding: " << n->get_decl()->get_name() << "\n";);
if (n->get_decl()->get_arity() == 0) {
m_md->register_decl(n->get_decl(), m.mk_false());
}
else {
func_interp* fi = alloc(func_interp, m, n->get_decl()->get_arity());
fi->set_else(m.mk_false());
m_md->register_decl(n->get_decl(), fi);
}
}
}
void horn_subsume_model_converter::add_default_false_interpretation(expr* e, model_ref& md) {
add_default_proc proc(m, md);
for_each_expr(proc, e);
}
void horn_subsume_model_converter::operator()(model_ref& mr) {
TRACE("dl_mc", model_smt2_pp(tout, m, *mr, 0););
for (unsigned i = m_funcs.size(); i > 0; ) {
--i;
func_decl* h = m_funcs[i].get();
expr_ref body(m_bodies[i].get(), m);
unsigned arity = h->get_arity();
add_default_false_interpretation(body, mr);
TRACE("dl_mc", tout << "eval: " << h->get_name() << "\n" << mk_pp(body, m) << "\n";);
expr_ref tmp(body);
mr->eval(tmp, body);
TRACE("dl", tout << "eval: " << mk_pp(tmp, m) << "\nto:\n" << mk_pp(body, m) << "\n";);
TRACE("dl", model_smt2_pp(tout, m, *mr, 0););
th_rewriter rw(m);
rw(body);
TRACE("dl_mc", tout << "to:\n" << mk_pp(body, m) << "\n";);
if (arity == 0) {
expr* e = mr->get_const_interp(h);
if (e) {