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fix #8024

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2025-11-16 10:08:21 -08:00
parent 81211254eb
commit 59eec25102
3 changed files with 25 additions and 9 deletions
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12
src/ast/rewriter/arith_rewriter.cpp
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@ -1829,6 +1829,10 @@ br_status arith_rewriter::mk_power_core(expr * arg1, expr * arg2, expr_ref & res
br_status arith_rewriter::mk_to_int_core(expr * arg, expr_ref & result) {
numeral a;
expr* x = nullptr;
if (m_util.is_int(arg)) {
result = arg;
return BR_DONE;
}
if (m_util.convert_int_numerals_to_real())
return BR_FAILED;
@ -1837,7 +1841,7 @@ br_status arith_rewriter::mk_to_int_core(expr * arg, expr_ref & result) {
return BR_DONE;
}
if (m_util.is_to_real(arg, x)) {
if (m_util.is_to_real(arg, x) && m_util.is_int(x)) {
result = x;
return BR_DONE;
}
@ -1885,6 +1889,10 @@ br_status arith_rewriter::mk_to_real_core(expr * arg, expr_ref & result) {
result = m_util.mk_numeral(a, false);
return BR_DONE;
}
if (m_util.is_real(arg)) {
result = arg;
return BR_DONE;
}
// push to_real over OP_ADD, OP_MUL
if (m_push_to_real) {
if (m_util.is_add(arg) || m_util.is_mul(arg)) {
@ -1909,7 +1917,7 @@ br_status arith_rewriter::mk_is_int(expr * arg, expr_ref & result) {
return BR_DONE;
}
if (m_util.is_to_real(arg)) {
if (m_util.is_to_real(arg) && m_util.is_int(to_app(arg)->get_arg(0))) {
result = m.mk_true();
return BR_DONE;
}