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https://github.com/Z3Prover/z3
synced 2025-04-08 02:15:19 +00:00
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@ -581,15 +581,15 @@ br_status bool_rewriter::try_ite_value(app * ite, app * val, expr_ref & result)
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TRACE("try_ite_value", tout << mk_ismt2_pp(t, m()) << " " << mk_ismt2_pp(e, m()) << " " << mk_ismt2_pp(val, m()) << "\n";
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tout << t << " " << e << " " << val << "\n";);
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result = m().mk_false();
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}
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}
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else if (t == val && e == val) {
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result = m().mk_true();
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}
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}
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else if (t == val) {
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result = cond;
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}
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else {
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SASSERT(e == val);
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SASSERT(e == val);
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mk_not(cond, result);
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}
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return BR_DONE;
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@ -46,7 +46,7 @@ public:
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ctx_propagate_assertions::ctx_propagate_assertions(ast_manager& m): m(m), m_trail(m) {}
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bool ctx_propagate_assertions::assert_expr(expr * t, bool sign) {
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expr * p = t;
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while (m.is_not(t, t)) {
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sign = !sign;
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@ -83,8 +83,8 @@ void ctx_propagate_assertions::assert_eq_core(expr * t, app * val) {
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// because the simplifier stopped at depth m_max_depth
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return;
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}
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CTRACE("assert_eq_bug", m_assertions.contains(t),
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CTRACE("assert_eq_bug", m_assertions.contains(t),
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tout << "t:\n" << mk_ismt2_pp(t, m) << "\nval:\n" << mk_ismt2_pp(val, m) << "\n";
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expr * old_val = 0;
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m_assertions.find(t, old_val);
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@ -114,11 +114,11 @@ void ctx_propagate_assertions::pop(unsigned num_scopes) {
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m_trail.pop_back();
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}
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SASSERT(m_trail.size() == old_trail_size);
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m_scopes.shrink(scope_lvl - num_scopes);
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m_scopes.shrink(scope_lvl - num_scopes);
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}
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bool ctx_simplify_tactic::simplifier::shared(expr * t) const {
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bool ctx_simplify_tactic::simplifier::shared(expr * t) const {
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SASSERT(m_occs);
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return t->get_ref_count() > 1 && m_occs->get_num_occs(t) > 1;
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}
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@ -139,7 +139,7 @@ struct ctx_simplify_tactic::imp {
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unsigned m_lvl;
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cached_result * m_next;
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cached_result(expr * t, unsigned lvl, cached_result * next):
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m_to(t),
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m_to(t),
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m_lvl(lvl),
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m_next(next) {
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}
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@ -156,7 +156,7 @@ struct ctx_simplify_tactic::imp {
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small_object_allocator m_allocator;
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svector<cache_cell> m_cache;
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vector<ptr_vector<expr> > m_cache_undo;
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unsigned m_depth;
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unsigned m_depth;
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unsigned m_num_steps;
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goal_num_occurs m_occs;
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mk_simplified_app m_mk_app;
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@ -183,7 +183,7 @@ struct ctx_simplify_tactic::imp {
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dealloc(m_simp);
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DEBUG_CODE({
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for (unsigned i = 0; i < m_cache.size(); i++) {
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CTRACE("ctx_simplify_tactic_bug", m_cache[i].m_from,
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CTRACE("ctx_simplify_tactic_bug", m_cache[i].m_from,
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tout << "i: " << i << "\n" << mk_ismt2_pp(m_cache[i].m_from, m) << "\n";
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tout << "m_result: " << m_cache[i].m_result << "\n";
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if (m_cache[i].m_result) tout << "lvl: " << m_cache[i].m_result->m_lvl << "\n";);
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@ -209,7 +209,7 @@ struct ctx_simplify_tactic::imp {
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throw tactic_exception(m.limit().get_cancel_msg());
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}
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bool shared(expr * t) const {
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bool shared(expr * t) const {
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TRACE("ctx_simplify_tactic_bug", tout << mk_pp(t, m) << "\n";);
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return t->get_ref_count() > 1 && m_occs.get_num_occs(t) > 1;
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}
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@ -233,7 +233,7 @@ struct ctx_simplify_tactic::imp {
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unsigned id = from->get_id();
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TRACE("ctx_simplify_tactic_cache", tout << "caching " << id << " @ " << scope_level() << "\n" << mk_ismt2_pp(from, m) << "\n--->\n" << mk_ismt2_pp(to, m) << "\n";);
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m_cache.reserve(id+1);
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cache_cell & cell = m_cache[id];
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cache_cell & cell = m_cache[id];
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void * mem = m_allocator.allocate(sizeof(cached_result));
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if (cell.m_from == 0) {
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// new_entry
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@ -243,7 +243,7 @@ struct ctx_simplify_tactic::imp {
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m.inc_ref(to);
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}
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else {
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// update
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// update
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cell.m_result = new (mem) cached_result(to, scope_level(), cell.m_result);
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m.inc_ref(to);
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}
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@ -255,7 +255,7 @@ struct ctx_simplify_tactic::imp {
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if (shared(from))
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cache_core(from, to);
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}
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unsigned scope_level() const {
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return m_simp->scope_level();
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}
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@ -276,7 +276,7 @@ struct ctx_simplify_tactic::imp {
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m.dec_ref(cell.m_result->m_to);
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cached_result * to_delete = cell.m_result;
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SASSERT(to_delete->m_lvl == lvl);
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TRACE("ctx_simplify_tactic_cache", tout << "uncaching: " << to_delete->m_lvl << "\n" <<
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TRACE("ctx_simplify_tactic_cache", tout << "uncaching: " << to_delete->m_lvl << "\n" <<
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mk_ismt2_pp(key, m) << "\n--->\n" << mk_ismt2_pp(to_delete->m_to, m) << "\nrestoring:\n";
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if (to_delete->m_next) tout << mk_ismt2_pp(to_delete->m_next->m_to, m); else tout << "<null>";
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tout << "\n";);
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@ -287,7 +287,7 @@ struct ctx_simplify_tactic::imp {
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}
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m_allocator.deallocate(sizeof(cached_result), to_delete);
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}
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keys.reset();
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keys.reset();
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}
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void pop(unsigned num_scopes) {
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@ -295,7 +295,7 @@ struct ctx_simplify_tactic::imp {
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return;
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SASSERT(num_scopes <= scope_level());
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unsigned lvl = scope_level();
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unsigned lvl = scope_level();
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m_simp->pop(num_scopes);
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// restore cache
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@ -339,7 +339,7 @@ struct ctx_simplify_tactic::imp {
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}
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m_num_steps++;
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m_depth++;
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if (m.is_or(t))
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if (m.is_or(t))
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simplify_or_and<true>(to_app(t), r);
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else if (m.is_and(t))
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simplify_or_and<false>(to_app(t), r);
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@ -351,7 +351,7 @@ struct ctx_simplify_tactic::imp {
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SASSERT(r.get() != 0);
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TRACE("ctx_simplify_tactic_detail", tout << "result:\n" << mk_bounded_pp(t, m) << "\n---->\n" << mk_bounded_pp(r, m) << "\n";);
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}
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template<bool OR>
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void simplify_or_and(app * t, expr_ref & r) {
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// go forwards
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@ -374,7 +374,7 @@ struct ctx_simplify_tactic::imp {
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continue;
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}
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if ((OR && m.is_true(new_arg)) ||
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(!OR && m.is_false(new_arg))) {
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(!OR && m.is_false(new_arg))) {
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r = new_arg;
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pop(scope_level() - old_lvl);
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cache(t, r);
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@ -403,7 +403,7 @@ struct ctx_simplify_tactic::imp {
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continue;
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}
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if ((OR && m.is_true(new_arg)) ||
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(!OR && m.is_false(new_arg))) {
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(!OR && m.is_false(new_arg))) {
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r = new_arg;
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pop(scope_level() - old_lvl);
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cache(t, r);
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@ -428,7 +428,7 @@ struct ctx_simplify_tactic::imp {
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}
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cache(t, r);
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}
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void simplify_ite(app * ite, expr_ref & r) {
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expr * c = ite->get_arg(0);
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expr * t = ite->get_arg(1);
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@ -467,8 +467,8 @@ struct ctx_simplify_tactic::imp {
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}
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else {
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expr * args[3] = { new_c.get(), new_t.get(), new_e.get() };
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TRACE("ctx_simplify_tactic_ite_bug",
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tout << "mk_ite\n" << mk_ismt2_pp(new_c.get(), m) << "\n" << mk_ismt2_pp(new_t.get(), m)
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TRACE("ctx_simplify_tactic_ite_bug",
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tout << "mk_ite\n" << mk_ismt2_pp(new_c.get(), m) << "\n" << mk_ismt2_pp(new_t.get(), m)
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<< "\n" << mk_ismt2_pp(new_e.get(), m) << "\n";);
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m_mk_app(ite->get_decl(), 3, args, r);
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}
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@ -529,7 +529,7 @@ struct ctx_simplify_tactic::imp {
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unsigned sz = g.size();
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expr_ref r(m);
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for (unsigned i = 0; !g.inconsistent() && i < sz; ++i) {
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m_depth = 0;
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m_depth = 0;
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simplify(g.form(i), r);
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if (i < sz - 1 && !m.is_true(r) && !m.is_false(r) && !g.dep(i) && !assert_expr(r, false)) {
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r = m.mk_false();
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@ -590,7 +590,7 @@ struct ctx_simplify_tactic::imp {
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IF_VERBOSE(TACTIC_VERBOSITY_LVL, verbose_stream() << "(ctx-simplify :num-steps " << m_num_steps << ")\n";);
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SASSERT(g.is_well_sorted());
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}
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};
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ctx_simplify_tactic::ctx_simplify_tactic(ast_manager & m, simplifier* simp, params_ref const & p):
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@ -618,9 +618,9 @@ void ctx_simplify_tactic::get_param_descrs(param_descrs & r) {
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r.insert("propagate_eq", CPK_BOOL, "(default: false) enable equality propagation from bounds.");
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}
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void ctx_simplify_tactic::operator()(goal_ref const & in,
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goal_ref_buffer & result,
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model_converter_ref & mc,
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void ctx_simplify_tactic::operator()(goal_ref const & in,
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goal_ref_buffer & result,
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model_converter_ref & mc,
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proof_converter_ref & pc,
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expr_dependency_ref & core) {
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mc = 0; pc = 0; core = 0;
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@ -628,12 +628,12 @@ void ctx_simplify_tactic::operator()(goal_ref const & in,
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in->inc_depth();
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result.push_back(in.get());
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}
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void ctx_simplify_tactic::cleanup() {
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ast_manager & m = m_imp->m;
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imp * d = alloc(imp, m, m_imp->m_simp->translate(m), m_params);
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std::swap(d, m_imp);
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std::swap(d, m_imp);
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dealloc(d);
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}
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