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Add support for initializing variable values in solver and optimize contexts in Z3

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This commit is contained in:
Nikolaj Bjorner 2024-09-19 22:44:16 +03:00
parent 342dccdc02
commit 0c48a50d59
12 changed files with 98 additions and 9 deletions
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41
src/ast/converters/generic_model_converter.cpp
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@ -130,6 +130,47 @@ 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(expr* def, expr_ref& var, expr_ref& value) {
// var = if(c, th, el) = value
// th = value => c = true
// el = value => c = false
expr* c = nullptr, *th = nullptr, *el = nullptr;
if (m.is_ite(def, c, th, el)) {
if (value == th) {
var = c;
value = m.mk_true();
return;
}
if (value == el) {
var = c;
value = m.mk_false();
return;
}
}
// var = def = value
// => def = value
if (is_uninterp(def))
var = def;
}
void generic_model_converter::set_env(ast_pp_util* visitor) {
if (!visitor) {