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fixup variables

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2024-10-03 20:06:45 -07:00
parent 969511ac00
commit b60e1a2ed2
1 changed files with 4 additions and 1 deletions
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5
src/ast/rewriter/var_subst.cpp
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@ -59,7 +59,10 @@ expr_ref var_subst::operator()(expr * n, unsigned num_args, expr * const * args)
new_args.push_back(arg); new_args.push_back(arg);
else { else {
unsigned idx = to_var(arg)->get_idx(); unsigned idx = to_var(arg)->get_idx();
new_args.push_back(m_std_order ? args[num_args - idx - 1] : args[idx]); expr* new_arg = m_std_order ? args[num_args - idx - 1] : args[idx];
if (!new_arg)
new_arg = arg;
new_args.push_back(new_arg);
} }
} }
result = m.mk_app(to_app(n)->get_decl(), new_args.size(), new_args.data()); result = m.mk_app(to_app(n)->get_decl(), new_args.size(), new_args.data());