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fix #5452

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-08-03 17:23:41 -07:00
parent 7ae4e93e86
commit 40f5270ae2
2 changed files with 12 additions and 5 deletions
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12
src/tactic/arith/fm_tactic.cpp
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@ -93,7 +93,8 @@ class fm_tactic : public tactic {
expr * lhs = to_app(l)->get_arg(0);
expr * rhs = to_app(l)->get_arg(1);
rational c;
u.is_numeral(rhs, c);
if (!u.is_numeral(rhs, c))
return NONE;
if (neg)
c.neg();
unsigned num_mons;
@ -112,7 +113,8 @@ class fm_tactic : public tactic {
expr * xi;
rational ai_val;
if (u.is_mul(monomial, ai, xi)) {
u.is_numeral(ai, ai_val);
if (!u.is_numeral(ai, ai_val))
return NONE;
}
else {
xi = monomial;
@ -120,7 +122,8 @@ class fm_tactic : public tactic {
}
if (u.is_to_real(xi))
xi = to_app(xi)->get_arg(0);
SASSERT(is_uninterp_const(xi));
if (!is_uninterp_const(xi))
return NONE;
if (x == to_app(xi)->get_decl()) {
a_val = ai_val;
if (neg)
@ -129,7 +132,8 @@ class fm_tactic : public tactic {
else {
expr_ref val(m);
val = ev(monomial);
SASSERT(u.is_numeral(val));
if (!u.is_numeral(val))
return NONE;
rational tmp;
u.is_numeral(val, tmp);
if (neg)