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mirror of https://github.com/Z3Prover/z3 synced 2026-06-20 07:36:31 +00:00

Merge branch 'master' into c3

This commit is contained in:
CEisenhofer 2026-06-10 13:41:31 +02:00
commit e3b80fc578
104 changed files with 10253 additions and 4367 deletions

View file

@ -1656,9 +1656,9 @@ seq_util::rex::info seq_util::rex::mk_info_rec(app* e) const {
if (e->get_family_id() == u.get_family_id()) {
switch (e->get_decl()->get_decl_kind()) {
case OP_RE_EMPTY_SET:
return info(true, l_false, UINT_MAX);
return info(true, l_false, UINT_MAX, false);
case OP_RE_FULL_SEQ_SET:
return info(true, l_true, 0);
return info(true, l_true, 0, true);
case OP_RE_STAR:
i1 = get_info_rec(e->get_arg(0));
return i1.star();
@ -1670,7 +1670,7 @@ seq_util::rex::info seq_util::rex::mk_info_rec(app* e) const {
case OP_RE_OF_PRED:
//TBD: check if the character predicate contains uninterpreted symbols or is nonground or is unsat
//TBD: check if the range is unsat
return info(true, l_false, 1);
return info(true, l_false, 1, false);
case OP_RE_CONCAT:
i1 = get_info_rec(e->get_arg(0));
i2 = get_info_rec(e->get_arg(1));
@ -1687,7 +1687,7 @@ seq_util::rex::info seq_util::rex::mk_info_rec(app* e) const {
min_length = u.str.min_length(e->get_arg(0));
is_value = m.is_value(e->get_arg(0));
nullable = (is_value && min_length == 0 ? l_true : (min_length > 0 ? l_false : l_undef));
return info(is_value, nullable, min_length);
return info(is_value, nullable, min_length, true);
case OP_RE_REVERSE:
return get_info_rec(e->get_arg(0));
case OP_RE_PLUS:
@ -1723,7 +1723,8 @@ std::ostream& seq_util::rex::info::display(std::ostream& out) const {
if (is_known()) {
out << "info("
<< "nullable=" << (nullable == l_true ? "T" : (nullable == l_false ? "F" : "U")) << ", "
<< "min_length=" << min_length << ")";
<< "min_length=" << min_length << ", "
<< "classical=" << (classical ? "T" : "F") << ")";
}
else if (is_valid())
out << "UNKNOWN";
@ -1743,13 +1744,13 @@ std::string seq_util::rex::info::str() const {
seq_util::rex::info seq_util::rex::info::star() const {
//if is_known() is false then all mentioned properties will remain false
return seq_util::rex::info(interpreted, l_true, 0);
return seq_util::rex::info(interpreted, l_true, 0, classical);
}
seq_util::rex::info seq_util::rex::info::plus() const {
if (is_known()) {
//plus never occurs in a normalized regex
return info(interpreted, nullable, min_length);
return info(interpreted, nullable, min_length, classical);
}
else
return *this;
@ -1758,14 +1759,14 @@ seq_util::rex::info seq_util::rex::info::plus() const {
seq_util::rex::info seq_util::rex::info::opt() const {
// if is_known() is false then all mentioned properties will remain false
// optional construct never occurs in a normalized regex
return seq_util::rex::info(interpreted, l_true, 0);
return seq_util::rex::info(interpreted, l_true, 0, classical);
}
seq_util::rex::info seq_util::rex::info::complement() const {
if (is_known()) {
lbool compl_nullable = (nullable == l_true ? l_false : (nullable == l_false ? l_true : l_undef));
unsigned compl_min_length = (compl_nullable == l_false ? 1 : 0);
return info(interpreted, compl_nullable, compl_min_length);
return info(interpreted, compl_nullable, compl_min_length, false);
}
else
return *this;
@ -1779,7 +1780,8 @@ seq_util::rex::info seq_util::rex::info::concat(seq_util::rex::info const& rhs,
m = UINT_MAX;
return info(interpreted && rhs.interpreted,
((nullable == l_false || rhs.nullable == l_false) ? l_false : ((nullable == l_true && rhs.nullable == l_true) ? l_true : l_undef)),
m);
m,
classical && rhs.classical);
}
else
return rhs;
@ -1793,7 +1795,8 @@ seq_util::rex::info seq_util::rex::info::disj(seq_util::rex::info const& rhs) co
//works correctly if one of the arguments is unknown
return info(interpreted && rhs.interpreted,
((nullable == l_true || rhs.nullable == l_true) ? l_true : ((nullable == l_false && rhs.nullable == l_false) ? l_false : l_undef)),
std::min(min_length, rhs.min_length));
std::min(min_length, rhs.min_length),
classical && rhs.classical);
}
else
return rhs;
@ -1804,7 +1807,8 @@ seq_util::rex::info seq_util::rex::info::conj(seq_util::rex::info const& rhs) co
if (rhs.is_known()) {
return info(interpreted && rhs.interpreted,
((nullable == l_true && rhs.nullable == l_true) ? l_true : ((nullable == l_false || rhs.nullable == l_false) ? l_false : l_undef)),
std::max(min_length, rhs.min_length));
std::max(min_length, rhs.min_length),
false);
}
else
return rhs;
@ -1818,7 +1822,8 @@ seq_util::rex::info seq_util::rex::info::diff(seq_util::rex::info const& rhs) co
if (rhs.is_known()) {
return info(interpreted & rhs.interpreted,
((nullable == l_true && rhs.nullable == l_false) ? l_true : ((nullable == l_false || rhs.nullable == l_false) ? l_false : l_undef)),
std::max(min_length, rhs.min_length));
std::max(min_length, rhs.min_length),
false);
}
else
return rhs;
@ -1835,7 +1840,8 @@ seq_util::rex::info seq_util::rex::info::orelse(seq_util::rex::info const& i) co
// TBD: whether ite is interpreted or not depends on whether the condition is interpreted and both branches are interpreted
return info(false,
((nullable == l_true && i.nullable == l_true) ? l_true : ((nullable == l_false && i.nullable == l_false) ? l_false : l_undef)),
std::min(min_length, i.min_length));
std::min(min_length, i.min_length),
classical && i.classical);
}
else
return i;
@ -1851,7 +1857,7 @@ seq_util::rex::info seq_util::rex::info::loop(unsigned lower, unsigned upper) co
if (m > 0 && (m < min_length || m < lower))
m = UINT_MAX;
lbool loop_nullable = (nullable == l_true || lower == 0 ? l_true : nullable);
return info(interpreted, loop_nullable, m);
return info(interpreted, loop_nullable, m, classical);
}
else
return *this;
@ -1866,6 +1872,7 @@ seq_util::rex::info& seq_util::rex::info::operator=(info const& other) {
interpreted = other.interpreted;
nullable = other.nullable;
min_length = other.min_length;
classical = other.classical;
return *this;
}