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updated handling of value initialization for bit-vectors

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This commit is contained in:
Nikolaj Bjorner 2024-09-22 21:30:11 +03:00
parent ba5cec7704
commit a9f8ec1bcb
10 changed files with 112 additions and 36 deletions
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39
src/ast/converters/generic_model_converter.cpp
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@ -22,6 +22,7 @@ Notes:
#include "ast/for_each_expr.h"
#include "ast/ast_util.h"
#include "ast/occurs.h"
#include "ast/bv_decl_plugin.h"
#include "ast/rewriter/expr_safe_replace.h"
#include "ast/rewriter/th_rewriter.h"
#include "ast/converters/generic_model_converter.h"
@ -130,25 +131,32 @@ generic_model_converter * generic_model_converter::copy(ast_translation & transl
return res;
}
void generic_model_converter::convert_initialize_value(expr_ref& var, expr_ref& value) {
for (auto const& e : m_entries) {
switch (e.m_instruction) {
case HIDE:
break;
case ADD:
if (is_uninterp_const(var) && e.m_f == to_app(var)->get_decl())
convert_initialize_value(e.m_def, var, value);
break;
void generic_model_converter::convert_initialize_value(vector<std::pair<expr_ref, expr_ref>> & var2value) {
if (var2value.empty() || m_entries.empty())
return;
for (unsigned i = 0; i < var2value.size(); ++i) {
auto& [var, value] = var2value[i];
for (auto const& e : m_entries) {
switch (e.m_instruction) {
case HIDE:
break;
case ADD:
if (is_uninterp_const(var) && e.m_f == to_app(var)->get_decl())
convert_initialize_value(e.m_def, i, var2value);
break;
}
}
}
}
void generic_model_converter::convert_initialize_value(expr* def, expr_ref& var, expr_ref& value) {
void generic_model_converter::convert_initialize_value(expr* def, unsigned i, vector<std::pair<expr_ref, expr_ref>>& var2value) {
// var = if(c, th, el) = value
// th = value => c = true
// el = value => c = false
expr* c = nullptr, *th = nullptr, *el = nullptr;
auto& [var, value] = var2value[i];
verbose_stream() << "def " << mk_pp(def, m) << "\n";
if (m.is_ite(def, c, th, el)) {
if (value == th) {
var = c;
@ -164,8 +172,15 @@ void generic_model_converter::convert_initialize_value(expr* def, expr_ref& var,
// var = def = value
// => def = value
if (is_uninterp(def))
var = def;
if (is_uninterp(def)) {
var = def;
return;
}
bv_util bv(m);
if (bv.is_mkbv(def)) {
verbose_stream() << "def\n";
}
}