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Merge branch 'master' of https://github.com/Z3Prover/z3

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This commit is contained in:
Nikolaj Bjorner 2016-02-09 11:08:52 +00:00
parent 133e3693de a2f376f9d6
commit 60c0e73b2f
7 changed files with 104 additions and 97 deletions
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14
src/api/java/Solver.java
View file

@ -127,13 +127,13 @@ public class Solver extends Z3Object
* using the Boolean constants in ps.
*
* Remarks:
* This API is an alternative to <see cref="Check"/> with assumptions for
* This API is an alternative to {@link check} with assumptions for
* extracting unsat cores.
* Both APIs can be used in the same solver. The unsat core will contain a
* combination
* of the Boolean variables provided using <see cref="AssertAndTrack"/>
* of the Boolean variables provided using {@link assertAndTrack}
* and the Boolean literals
* provided using <see cref="Check"/> with assumptions.
* provided using {@link check} with assumptions.
**/
public void assertAndTrack(BoolExpr[] constraints, BoolExpr[] ps)
{
@ -152,13 +152,13 @@ public class Solver extends Z3Object
* using the Boolean constant p.
*
* Remarks:
* This API is an alternative to <see cref="Check"/> with assumptions for
* This API is an alternative to {@link check} with assumptions for
* extracting unsat cores.
* Both APIs can be used in the same solver. The unsat core will contain a
* combination
* of the Boolean variables provided using <see cref="AssertAndTrack"/>
* of the Boolean variables provided using {@link assertAndTrack}
* and the Boolean literals
* provided using <see cref="Check"/> with assumptions.
* provided using {@link check} with assumptions.
*/
public void assertAndTrack(BoolExpr constraint, BoolExpr p)
{
@ -294,7 +294,7 @@ public class Solver extends Z3Object
}
/**
* Create a clone of the current solver with respect to <c>ctx</c>.
* Create a clone of the current solver with respect to{@code ctx}.
*/
public Solver translate(Context ctx)
{

15
src/ast/fpa/fpa2bv_converter.cpp
View file

@ -419,11 +419,16 @@ void fpa2bv_converter::add_core(unsigned sbits, unsigned ebits,
dbg_decouple("fpa2bv_add_exp_delta", exp_delta);
// cap the delta
expr_ref cap(m), cap_le_delta(m);
cap = m_bv_util.mk_numeral(sbits+2, ebits);
cap_le_delta = m_bv_util.mk_ule(cap, exp_delta);
m_simp.mk_ite(cap_le_delta, cap, exp_delta, exp_delta);
if (log2(sbits + 2) < ebits + 2)
{
// cap the delta
expr_ref cap(m), cap_le_delta(m);
cap = m_bv_util.mk_numeral(sbits + 2, ebits + 2);
cap_le_delta = m_bv_util.mk_ule(cap, m_bv_util.mk_zero_extend(2, exp_delta));
m_simp.mk_ite(cap_le_delta, cap, m_bv_util.mk_zero_extend(2, exp_delta), exp_delta);
exp_delta = m_bv_util.mk_extract(ebits - 1, 0, exp_delta);
dbg_decouple("fpa2bv_add_exp_cap", cap);
}
dbg_decouple("fpa2bv_add_exp_delta_capped", exp_delta);

68
src/ast/seq_decl_plugin.cpp
View file

@ -3,11 +3,11 @@ Copyright (c) 2011 Microsoft Corporation
Module Name:
dl_decl_plugin.h
seq_decl_plugin.h
Abstract:
<abstract>
decl_plugin for the theory of sequences
Author:
@ -43,7 +43,7 @@ static bool is_escape_char(char const *& s, unsigned& result) {
if (*s != '\\' || *(s + 1) == 0) {
return false;
}
if (*(s + 1) == 'x' &&
if (*(s + 1) == 'x' &&
is_hex_digit(*(s + 2), d1) && is_hex_digit(*(s + 3), d2)) {
result = d1*16 + d2;
s += 4;
@ -100,7 +100,7 @@ zstring::zstring(char const* s, encoding enc): m_encoding(enc) {
if (is_escape_char(s, ch)) {
m_buffer.push_back(ch);
}
else {
else {
m_buffer.push_back(*s);
++s;
}
@ -115,7 +115,7 @@ zstring::zstring(zstring const& other) {
zstring::zstring(unsigned num_bits, bool const* ch) {
SASSERT(num_bits == 8 || num_bits == 16);
m_encoding = (num_bits == 8)?ascii:unicode;
unsigned n = 0;
unsigned n = 0;
for (unsigned i = 0; i < num_bits; ++i) {
n |= (((unsigned)ch[i]) << i);
}
@ -158,10 +158,10 @@ zstring zstring::replace(zstring const& src, zstring const& dst) const {
}
static const char esc_table[32][6] =
{ "\\x00", "\\x01", "\\x02", "\\x03", "\\x04", "\\x05", "\\x06", "\\x07", "\\x08", "\\x09", "\\n", "\\v", "\\f", "\\r", "\\x0E", "\\x0F",
{ "\\x00", "\\x01", "\\x02", "\\x03", "\\x04", "\\x05", "\\x06", "\\x07", "\\x08", "\\x09", "\\n", "\\v", "\\f", "\\r", "\\x0E", "\\x0F",
"\\x10", "\\x11", "\\x12", "\\x13", "\\x14", "\\x15", "\\x16", "\\x17", "\\x18", "\\x19", "\\x1A", "\\x1B", "\\x1C", "\\x1D", "\\x1E", "\\x1F"
};
std::string zstring::encode() const {
SASSERT(m_encoding == ascii);
std::ostringstream strm;
@ -220,7 +220,7 @@ int zstring::indexof(zstring const& other, int offset) const {
bool prefix = true;
for (unsigned j = 0; prefix && j < other.length(); ++j) {
prefix = m_buffer[i + j] == other[j];
}
}
if (prefix) {
return static_cast<int>(i);
}
@ -250,7 +250,7 @@ std::ostream& zstring::operator<<(std::ostream& out) const {
}
seq_decl_plugin::seq_decl_plugin(): m_init(false),
seq_decl_plugin::seq_decl_plugin(): m_init(false),
m_stringc_sym("String"),
m_charc_sym("Char"),
m_string(0),
@ -258,7 +258,7 @@ seq_decl_plugin::seq_decl_plugin(): m_init(false),
m_re(0) {}
void seq_decl_plugin::finalize() {
for (unsigned i = 0; i < m_sigs.size(); ++i)
for (unsigned i = 0; i < m_sigs.size(); ++i)
dealloc(m_sigs[i]);
m_manager->dec_ref(m_string);
m_manager->dec_ref(m_char);
@ -266,7 +266,7 @@ void seq_decl_plugin::finalize() {
}
bool seq_decl_plugin::is_sort_param(sort* s, unsigned& idx) {
return
return
s->get_name().is_numerical() &&
(idx = s->get_name().get_num(), true);
}
@ -283,7 +283,7 @@ bool seq_decl_plugin::match(ptr_vector<sort>& binding, sort* s, sort* sP) {
return true;
}
if (s->get_family_id() == sP->get_family_id() &&
s->get_decl_kind() == sP->get_decl_kind() &&
s->get_num_parameters() == sP->get_num_parameters()) {
@ -308,7 +308,7 @@ bool seq_decl_plugin::match(ptr_vector<sort>& binding, sort* s, sort* sP) {
void seq_decl_plugin::match_right_assoc(psig& sig, unsigned dsz, sort *const* dom, sort* range, sort_ref& range_out) {
ptr_vector<sort> binding;
ast_manager& m = *m_manager;
TRACE("seq_verbose",
TRACE("seq_verbose",
tout << sig.m_name << ": ";
for (unsigned i = 0; i < dsz; ++i) tout << mk_pp(dom[i], m) << " ";
if (range) tout << " range: " << mk_pp(range, m);
@ -375,7 +375,7 @@ void seq_decl_plugin::match(psig& sig, unsigned dsz, sort *const* dom, sort* ran
for (unsigned i = 0; i < dsz; ++i) {
strm << mk_pp(sig.m_dom[i].get(), m) << " ";
}
m.raise_exception(strm.str().c_str());
}
if (!range && dsz == 0) {
@ -438,7 +438,7 @@ void seq_decl_plugin::init() {
m_sigs.resize(LAST_SEQ_OP);
// TBD: have (par ..) construct and load parameterized signature from premable.
m_sigs[OP_SEQ_UNIT] = alloc(psig, m, "seq.unit", 1, 1, &A, seqA);
m_sigs[OP_SEQ_EMPTY] = alloc(psig, m, "seq.empty", 1, 0, 0, seqA);
m_sigs[OP_SEQ_EMPTY] = alloc(psig, m, "seq.empty", 1, 0, 0, seqA);
m_sigs[OP_SEQ_CONCAT] = alloc(psig, m, "seq.++", 1, 2, seqAseqA, seqA);
m_sigs[OP_SEQ_PREFIX] = alloc(psig, m, "seq.prefixof", 1, 2, seqAseqA, boolT);
m_sigs[OP_SEQ_SUFFIX] = alloc(psig, m, "seq.suffixof", 1, 2, seqAseqA, boolT);
@ -548,10 +548,10 @@ func_decl* seq_decl_plugin::mk_assoc_fun(decl_kind k, unsigned arity, sort* cons
match_right_assoc(*m_sigs[k], arity, domain, range, rng);
func_decl_info info(m_family_id, k_seq);
info.set_right_associative();
return m.mk_func_decl(m_sigs[(rng == m_string)?k_string:k_seq]->m_name, rng, rng, rng, info);
return m.mk_func_decl(m_sigs[(rng == m_string)?k_string:k_seq]->m_name, rng, rng, rng, info);
}
func_decl * seq_decl_plugin::mk_func_decl(decl_kind k, unsigned num_parameters, parameter const * parameters,
func_decl * seq_decl_plugin::mk_func_decl(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
init();
ast_manager& m = *m_manager;
@ -568,7 +568,7 @@ func_decl * seq_decl_plugin::mk_func_decl(decl_kind k, unsigned num_parameters,
func_decl_info info(m_family_id, k, 1, &param);
return m.mk_func_decl(m_sigs[k]->m_name, arity, domain, rng, info);
}
case OP_SEQ_UNIT:
case OP_RE_PLUS:
case OP_RE_STAR:
@ -593,7 +593,7 @@ func_decl * seq_decl_plugin::mk_func_decl(decl_kind k, unsigned num_parameters,
}
match(*m_sigs[k], arity, domain, range, rng);
return m.mk_func_decl(symbol("re.nostr"), arity, domain, rng, func_decl_info(m_family_id, OP_RE_EMPTY_SET));
case OP_RE_LOOP:
switch (arity) {
case 1:
@ -601,7 +601,7 @@ func_decl * seq_decl_plugin::mk_func_decl(decl_kind k, unsigned num_parameters,
if (num_parameters == 0 || num_parameters > 2 || !parameters[0].is_int() || (num_parameters == 2 && !parameters[1].is_int())) {
m.raise_exception("Expecting two numeral parameters to function re-loop");
}
return m.mk_func_decl(m_sigs[k]->m_name, arity, domain, rng, func_decl_info(m_family_id, k, num_parameters, parameters));
return m.mk_func_decl(m_sigs[k]->m_name, arity, domain, rng, func_decl_info(m_family_id, k, num_parameters, parameters));
case 2:
if (m_re != domain[0] || !arith_util(m).is_int(domain[1])) {
m.raise_exception("Incorrect type of arguments passed to re.loop. Expecting regular expression and two integer parameters");
@ -613,26 +613,26 @@ func_decl * seq_decl_plugin::mk_func_decl(decl_kind k, unsigned num_parameters,
}
return m.mk_func_decl(m_sigs[k]->m_name, arity, domain, domain[0], func_decl_info(m_family_id, k, num_parameters, parameters));
default:
m.raise_exception("Incorrect number of arguments passed to loop. Expected 1 regular expression and two integer parameters");
m.raise_exception("Incorrect number of arguments passed to loop. Expected 1 regular expression and two integer parameters");
}
case OP_STRING_CONST:
if (!(num_parameters == 1 && arity == 0 && parameters[0].is_symbol())) {
m.raise_exception("invalid string declaration");
}
}
return m.mk_const_decl(m_stringc_sym, m_string,
func_decl_info(m_family_id, OP_STRING_CONST, num_parameters, parameters));
case OP_RE_UNION:
case OP_RE_CONCAT:
case OP_RE_INTERSECT:
case OP_RE_CONCAT:
case OP_RE_INTERSECT:
return mk_assoc_fun(k, arity, domain, range, k, k);
case OP_SEQ_CONCAT:
case OP_SEQ_CONCAT:
return mk_assoc_fun(k, arity, domain, range, k, _OP_STRING_CONCAT);
case _OP_STRING_CONCAT:
case _OP_STRING_CONCAT:
return mk_assoc_fun(k, arity, domain, range, OP_SEQ_CONCAT, k);
case OP_SEQ_REPLACE:
@ -743,8 +743,8 @@ app* seq_decl_plugin::mk_string(zstring const& s) {
bool seq_decl_plugin::is_value(app* e) const {
return
is_app_of(e, m_family_id, OP_SEQ_EMPTY) ||
return
is_app_of(e, m_family_id, OP_SEQ_EMPTY) ||
(is_app_of(e, m_family_id, OP_SEQ_UNIT) &&
m_manager->is_value(e->get_arg(0)));
}
@ -782,7 +782,7 @@ app* seq_util::str::mk_char(char ch) {
zstring s(ch, zstring::ascii);
return mk_char(s, 0);
}
bool seq_util::str::is_char(expr* n, zstring& c) const {
if (u.is_char(n)) {
c = zstring(to_app(n)->get_decl()->get_parameter(0).get_symbol().bare_str());
@ -809,7 +809,7 @@ void seq_util::str::get_concat(expr* e, expr_ref_vector& es) const {
while (is_concat(e, e1, e2)) {
get_concat(e1, es);
e = e2;
}
}
if (!is_empty(e)) {
es.push_back(e);
}
@ -835,7 +835,7 @@ bool seq_util::re::is_loop(expr const* n, expr*& body, unsigned& lo, unsigned& h
return true;
}
}
return false;
return false;
}
bool seq_util::re::is_loop(expr const* n, expr*& body, unsigned& lo) {
@ -847,5 +847,5 @@ bool seq_util::re::is_loop(expr const* n, expr*& body, unsigned& lo) {
return true;
}
}
return false;
return false;
}

74
src/ast/seq_decl_plugin.h
View file

@ -7,7 +7,7 @@ Module Name:
Abstract:
<abstract>
decl_plugin for the theory of sequences
Author:
@ -41,7 +41,7 @@ enum seq_op_kind {
OP_SEQ_EXTRACT,
OP_SEQ_REPLACE,
OP_SEQ_AT,
OP_SEQ_LENGTH,
OP_SEQ_LENGTH,
OP_SEQ_INDEX,
OP_SEQ_TO_RE,
OP_SEQ_IN_RE,
@ -61,19 +61,19 @@ enum seq_op_kind {
// string specific operators.
OP_STRING_CONST,
OP_STRING_ITOS,
OP_STRING_STOI,
OP_STRING_ITOS,
OP_STRING_STOI,
// internal only operators. Converted to SEQ variants.
_OP_STRING_STRREPL,
_OP_STRING_CONCAT,
_OP_STRING_LENGTH,
_OP_STRING_STRREPL,
_OP_STRING_CONCAT,
_OP_STRING_LENGTH,
_OP_STRING_STRCTN,
_OP_STRING_PREFIX,
_OP_STRING_SUFFIX,
_OP_STRING_IN_REGEXP,
_OP_STRING_TO_REGEXP,
_OP_STRING_CHARAT,
_OP_STRING_SUBSTR,
_OP_STRING_PREFIX,
_OP_STRING_SUFFIX,
_OP_STRING_IN_REGEXP,
_OP_STRING_TO_REGEXP,
_OP_STRING_CHARAT,
_OP_STRING_SUBSTR,
_OP_STRING_STRIDOF,
_OP_REGEXP_EMPTY,
_OP_REGEXP_FULL,
@ -85,10 +85,10 @@ enum seq_op_kind {
class zstring {
public:
enum encoding {
ascii,
ascii,
unicode
};
private:
private:
buffer<unsigned> m_buffer;
encoding m_encoding;
public:
@ -101,7 +101,7 @@ public:
zstring replace(zstring const& src, zstring const& dst) const;
unsigned num_bits() const { return (m_encoding==ascii)?8:16; }
encoding get_encoding() const { return m_encoding; }
std::string encode() const;
std::string encode() const;
unsigned length() const { return m_buffer.size(); }
unsigned operator[](unsigned i) const { return m_buffer[i]; }
bool empty() const { return m_buffer.empty(); }
@ -113,7 +113,7 @@ public:
zstring operator+(zstring const& other) const;
std::ostream& operator<<(std::ostream& out) const;
};
class seq_decl_plugin : public decl_plugin {
struct psig {
symbol m_name;
@ -161,18 +161,18 @@ public:
virtual ~seq_decl_plugin() {}
virtual void finalize();
virtual decl_plugin * mk_fresh() { return alloc(seq_decl_plugin); }
virtual sort * mk_sort(decl_kind k, unsigned num_parameters, parameter const * parameters);
virtual func_decl * mk_func_decl(decl_kind k, unsigned num_parameters, parameter const * parameters,
virtual func_decl * mk_func_decl(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range);
virtual void get_op_names(svector<builtin_name> & op_names, symbol const & logic);
virtual void get_sort_names(svector<builtin_name> & sort_names, symbol const & logic);
virtual bool is_value(app * e) const;
virtual bool is_unique_value(app * e) const { return is_value(e); }
@ -181,8 +181,8 @@ public:
bool is_char(ast* a) const { return a == m_char; }
app* mk_string(symbol const& s);
app* mk_string(zstring const& s);
app* mk_string(symbol const& s);
app* mk_string(zstring const& s);
};
@ -244,12 +244,12 @@ public:
bool is_string(expr const* n, symbol& s) const {
return is_string(n) && (s = to_app(n)->get_decl()->get_parameter(0).get_symbol(), true);
}
bool is_string(expr const* n, zstring& s) const;
bool is_char(expr* n, zstring& s) const;
bool is_empty(expr const* n) const { symbol s;
return is_app_of(n, m_fid, OP_SEQ_EMPTY) || (is_string(n, s) && !s.is_numerical() && *s.bare_str() == 0);
bool is_empty(expr const* n) const { symbol s;
return is_app_of(n, m_fid, OP_SEQ_EMPTY) || (is_string(n, s) && !s.is_numerical() && *s.bare_str() == 0);
}
bool is_concat(expr const* n) const { return is_app_of(n, m_fid, OP_SEQ_CONCAT); }
bool is_length(expr const* n) const { return is_app_of(n, m_fid, OP_SEQ_LENGTH); }
@ -265,7 +265,7 @@ public:
bool is_in_re(expr const* n) const { return is_app_of(n, m_fid, OP_SEQ_IN_RE); }
bool is_unit(expr const* n) const { return is_app_of(n, m_fid, OP_SEQ_UNIT); }
MATCH_BINARY(is_concat);
MATCH_UNARY(is_length);
MATCH_TERNARY(is_extract);
@ -278,7 +278,7 @@ public:
MATCH_BINARY(is_suffix);
MATCH_UNARY(is_itos);
MATCH_UNARY(is_stoi);
MATCH_BINARY(is_in_re);
MATCH_BINARY(is_in_re);
MATCH_UNARY(is_unit);
void get_concat(expr* e, expr_ref_vector& es) const;
@ -301,7 +301,7 @@ public:
app* mk_inter(expr* r1, expr* r2) { return m.mk_app(m_fid, OP_RE_INTERSECT, r1, r2); }
app* mk_star(expr* r) { return m.mk_app(m_fid, OP_RE_STAR, r); }
app* mk_plus(expr* r) { return m.mk_app(m_fid, OP_RE_PLUS, r); }
app* mk_opt(expr* r) { return m.mk_app(m_fid, OP_RE_OPTION, r); }
app* mk_opt(expr* r) { return m.mk_app(m_fid, OP_RE_OPTION, r); }
app* mk_loop(expr* r, unsigned lo);
app* mk_loop(expr* r, unsigned lo, unsigned hi);
@ -325,23 +325,23 @@ public:
MATCH_UNARY(is_plus);
MATCH_UNARY(is_opt);
bool is_loop(expr const* n, expr*& body, unsigned& lo, unsigned& hi);
bool is_loop(expr const* n, expr*& body, unsigned& lo);
bool is_loop(expr const* n, expr*& body, unsigned& lo);
};
str str;
re re;
seq_util(ast_manager& m):
m(m),
seq_util(ast_manager& m):
m(m),
seq(*static_cast<seq_decl_plugin*>(m.get_plugin(m.mk_family_id("seq")))),
m_fid(seq.get_family_id()),
str(*this),
re(*this) {
re(*this) {
}
~seq_util() {}
family_id get_family_id() const { return m_fid; }
};
#endif /* SEQ_DECL_PLUGIN_H_ */

6
src/ast/simplifier/fpa_simplifier_plugin.cpp
View file

@ -24,16 +24,16 @@ m_rw(m) {}
fpa_simplifier_plugin::~fpa_simplifier_plugin() {}
bool fpa_simplifier_plugin::reduce(func_decl * f, unsigned num_args, expr * const * args, expr_ref & result) {
set_reduce_invoked();
set_reduce_invoked();
SASSERT(f->get_family_id() == get_family_id());
return m_rw.mk_app_core(f, num_args, args, result) == BR_DONE;
return m_rw.mk_app_core(f, num_args, args, result) != BR_FAILED;
}
bool fpa_simplifier_plugin::reduce_eq(expr * lhs, expr * rhs, expr_ref & result) {
set_reduce_invoked();
return m_rw.mk_eq_core(lhs, rhs, result) == BR_DONE;
return m_rw.mk_eq_core(lhs, rhs, result) != BR_FAILED;
}

4
src/ast/simplifier/seq_simplifier_plugin.cpp
View file

@ -7,7 +7,7 @@ Module Name:
Abstract:
Simplifier for the floating-point theory
Simplifier for the theory of sequences
Author:
@ -24,7 +24,7 @@ m_rw(m) {}
seq_simplifier_plugin::~seq_simplifier_plugin() {}
bool seq_simplifier_plugin::reduce(func_decl * f, unsigned num_args, expr * const * args, expr_ref & result) {
set_reduce_invoked();
set_reduce_invoked();
SASSERT(f->get_family_id() == get_family_id());

20
src/smt/theory_fpa.cpp
View file

@ -26,17 +26,17 @@ namespace smt {
class fpa2bv_conversion_trail_elem : public trail<theory_fpa> {
ast_manager & m;
obj_map<expr, expr*> & m_conversions;
expr * m_e;
obj_map<expr, expr*> & m_map;
expr_ref key;
public:
fpa2bv_conversion_trail_elem(ast_manager & m, obj_map<expr, expr*> & c, expr * e) :
m(m), m_conversions(c), m_e(e) { m.inc_ref(e); }
virtual ~fpa2bv_conversion_trail_elem() {}
fpa2bv_conversion_trail_elem(ast_manager & m, obj_map<expr, expr*> & map, expr * e) :
m(m), m_map(map), key(e, m) { }
virtual ~fpa2bv_conversion_trail_elem() { }
virtual void undo(theory_fpa & th) {
expr * v = m_conversions.find(m_e);
m_conversions.remove(m_e);
m.dec_ref(v);
m.dec_ref(m_e);
expr * val = m_map.find(key);
m_map.remove(key);
m.dec_ref(val);
key = 0;
}
};
@ -153,6 +153,8 @@ namespace smt {
theory_fpa::~theory_fpa()
{
m_trail_stack.reset();
if (m_is_initialized) {
ast_manager & m = get_manager();
dec_ref_map_values(m, m_conversions);