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fix #4811

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This commit is contained in:
Nikolaj Bjorner 2020-11-22 16:05:44 -08:00
parent 65464f5944
commit 193ca57444
4 changed files with 23 additions and 13 deletions
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19
src/ast/rewriter/poly_rewriter_def.h
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@ -89,15 +89,12 @@ expr * poly_rewriter<Config>::mk_mul_app(unsigned num_args, expr * const * args)
expr * prev = get_power_body(args[0], k_prev);
rational k;
ptr_buffer<expr> new_args;
#define PUSH_POWER() { \
if (k_prev.is_one()) { \
new_args.push_back(prev); \
} \
else { \
expr * pargs[2] = { prev, mk_numeral(k_prev) }; \
new_args.push_back(m().mk_app(get_fid(), power_decl_kind(), 2, pargs)); \
} \
}
auto push_power = [&]() {
if (k_prev.is_one())
new_args.push_back(prev);
else
new_args.push_back(mk_power(prev, k_prev));
};
for (unsigned i = 1; i < num_args; i++) {
expr * arg = get_power_body(args[i], k);
@ -105,12 +102,12 @@ expr * poly_rewriter<Config>::mk_mul_app(unsigned num_args, expr * const * args)
k_prev += k;
}
else {
PUSH_POWER();
push_power();
prev = arg;
k_prev = k;
}
}
PUSH_POWER();
push_power();
SASSERT(new_args.size() > 0);
if (new_args.size() == 1) {
return new_args[0];