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simplifications noticed by trying #4147

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The change masks possible bugs in smt.threads and arrays.
This commit is contained in:
Nikolaj Bjorner 2020-04-29 10:15:54 -07:00
parent 7cfd16c7f9
commit 3fc001baea
4 changed files with 25 additions and 10 deletions
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3
src/tactic/core/distribute_forall_tactic.cpp
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@ -15,6 +15,7 @@ Author:
--*/
#include "tactic/tactical.h"
#include "ast/ast_util.h"
#include "ast/rewriter/rewriter_def.h"
#include "ast/rewriter/var_subst.h"
@ -46,7 +47,7 @@ class distribute_forall_tactic : public tactic {
expr_ref_buffer new_args(m);
for (unsigned i = 0; i < num_args; i++) {
expr * arg = or_e->get_arg(i);
expr * not_arg = m.mk_not(arg);
expr * not_arg = mk_not(m, arg);
quantifier_ref tmp_q(m);
tmp_q = m.update_quantifier(old_q, not_arg);
new_args.push_back(elim_unused_vars(m, tmp_q, params_ref()));