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prepare release notes

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-10-28 17:42:16 -05:00
parent 43d9159a74
commit 0f0287d129
21 changed files with 144 additions and 67 deletions
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2
CMakeLists.txt
View file

@ -34,7 +34,7 @@ endif()
################################################################################
set(Z3_VERSION_MAJOR 4)
set(Z3_VERSION_MINOR 8)
set(Z3_VERSION_PATCH 2)
set(Z3_VERSION_PATCH 3)
set(Z3_VERSION_TWEAK 0)
set(Z3_VERSION "${Z3_VERSION_MAJOR}.${Z3_VERSION_MINOR}.${Z3_VERSION_PATCH}.${Z3_VERSION_TWEAK}")
set(Z3_FULL_VERSION_STR "${Z3_VERSION}") # Note this might be modified

14
RELEASE_NOTES
View file

@ -1,5 +1,19 @@
RELEASE NOTES
Version 4.8.3
=============
- New features
- native handling of recursive function definitions
- PB rounding based option for conflict resolution when reasoning about PB constraints.
Version 4.8.2
=============
- Post-Release.
Version 4.8.1
=============
- Release. Bug-fix for 4.8.0
Version 4.8.0
=============

2
scripts/mk_project.py
View file

@ -9,7 +9,7 @@ from mk_util import *
# Z3 Project definition
def init_project_def():
set_version(4, 8, 2, 0)
set_version(4, 8, 3, 0)
add_lib('util', [], includes2install = ['z3_version.h'])
add_lib('polynomial', ['util'], 'math/polynomial')
add_lib('sat', ['util'])

4
src/api/api_context.h
View file

@ -63,7 +63,7 @@ namespace api {
datalog::dl_decl_util m_datalog_util;
fpa_util m_fpa_util;
seq_util m_sutil;
recfun_util m_recfun;
recfun::util m_recfun;
// Support for old solver API
smt_params m_fparams;
@ -130,7 +130,7 @@ namespace api {
fpa_util & fpautil() { return m_fpa_util; }
datatype_util& dtutil() { return m_dt_plugin->u(); }
seq_util& sutil() { return m_sutil; }
recfun_util& recfun() { return m_recfun; }
recfun::util& recfun() { return m_recfun; }
family_id get_basic_fid() const { return m_basic_fid; }
family_id get_array_fid() const { return m_array_fid; }
family_id get_arith_fid() const { return m_arith_fid; }

28
src/api/dotnet/Context.cs
View file

@ -532,6 +532,34 @@ namespace Microsoft.Z3
return new FuncDecl(this, MkSymbol(name), domain, range);
}
/// <summary>
/// Creates a new recursive function declaration.
/// </summary>
public FuncDecl MkRecFuncDecl(string name, Sort[] domain, Sort range)
{
Debug.Assert(range != null);
Debug.Assert(domain.All(d => d != null));
CheckContextMatch<Sort>(domain);
CheckContextMatch(range);
return new FuncDecl(this, MkSymbol(name), domain, range, true);
}
/// <summary>
/// Bind a definition to a recursive function declaration.
/// The function must have previously been created using
/// MkRecFuncDecl. The body may contain recursive uses of the function or
/// other mutually recursive functions.
/// </summary>
public void AddRecDef(FuncDecl f, Expr[] args, Expr body)
{
CheckContextMatch(f);
CheckContextMatch<Expr>(args);
CheckContextMatch(body);
IntPtr[] argsNative = AST.ArrayToNative(args);
Native.Z3_add_rec_def(nCtx, f.NativeObject, (uint)args.Length, argsNative, body.NativeObject);
}
/// <summary>
/// Creates a new function declaration.
/// </summary>

9
src/api/dotnet/FuncDecl.cs
View file

@ -302,6 +302,15 @@ namespace Microsoft.Z3
Debug.Assert(range != null);
}
internal FuncDecl(Context ctx, Symbol name, Sort[] domain, Sort range, bool is_rec)
: base(ctx, Native.Z3_mk_rec_func_decl(ctx.nCtx, name.NativeObject, AST.ArrayLength(domain), AST.ArrayToNative(domain), range.NativeObject))
{
Debug.Assert(ctx != null);
Debug.Assert(name != null);
Debug.Assert(range != null);
}
#if DEBUG
internal override void CheckNativeObject(IntPtr obj)
{

10
src/ast/ast_pp_util.cpp
View file

@ -20,6 +20,7 @@ Revision History:
#include "ast/ast_pp_util.h"
#include "ast/ast_smt2_pp.h"
#include "ast/ast_smt_pp.h"
#include "ast/recfun_decl_plugin.h"
void ast_pp_util::collect(expr* e) {
coll.visit(e);
@ -49,7 +50,14 @@ void ast_pp_util::display_decls(std::ostream& out) {
ast_smt2_pp(out, f, m_env) << "\n";
}
}
SASSERT(coll.get_num_preds() == 0);
vector<std::pair<func_decl*, expr*>> recfuns;
recfun::util u(m);
func_decl_ref_vector funs = u.get_rec_funs();
if (funs.empty()) return;
for (func_decl * f : funs) {
recfuns.push_back(std::make_pair(f, u.get_def(f).get_rhs()));
}
ast_smt2_pp_recdefs(out, recfuns, m_env);
}
void ast_pp_util::remove_decl(func_decl* f) {

2
src/ast/ast_pp_util.h
View file

@ -31,7 +31,7 @@ class ast_pp_util {
decl_collector coll;
ast_pp_util(ast_manager& m): m(m), m_env(m), coll(m, false) {}
ast_pp_util(ast_manager& m): m(m), m_env(m), coll(m) {}
void collect(expr* e);

37
src/ast/ast_smt2_pp.cpp
View file

@ -1163,6 +1163,33 @@ public:
unregister_var_names(f->get_arity());
}
// format set of mutually recursive definitions
void operator()(vector<std::pair<func_decl*, expr*>> const& funs, format_ref & r) {
format_ref_vector decls(m()), bodies(m());
format_ref r1(m()), r2(m());
for (auto const& p : funs) {
unsigned len;
func_decl* f = p.first;
expr* e = p.second;
format * fname = m_env.pp_fdecl_name(f, len);
register_var_names(f->get_arity());
format * args[3];
args[0] = fname;
args[1] = pp_var_args(f->get_arity(), f->get_domain());
args[2] = m_env.pp_sort(f->get_range());
decls.push_back(mk_seq1<format**, f2f>(m(), args, args+3, f2f(), ""));
process(e, r);
bodies.push_back(r);
unregister_var_names(f->get_arity());
}
r1 = mk_seq1<format*const*, f2f>(m(), decls.begin(), decls.end(), f2f(), "");
r2 = mk_seq1<format*const*, f2f>(m(), bodies.begin(), bodies.end(), f2f(), "");
format * args[2];
args[0] = r1;
args[1] = r2;
r = mk_seq1<format**, f2f>(m(), args, args+2, f2f(), "define-rec-funs");
}
};
@ -1275,6 +1302,16 @@ std::ostream & ast_smt2_pp(std::ostream & out, symbol const& s, bool is_skolem,
return out;
}
std::ostream & ast_smt2_pp_recdefs(std::ostream & out, vector<std::pair<func_decl*, expr*>> const& funs, smt2_pp_environment & env, params_ref const & p) {
ast_manager & m = env.get_manager();
format_ref r(fm(m));
smt2_printer pr(env, p);
pr(funs, r);
pp(out, r.get(), m, p);
return out;
}
mk_ismt2_pp::mk_ismt2_pp(ast * t, ast_manager & m, params_ref const & p, unsigned indent, unsigned num_vars, char const * var_prefix):
m_ast(t),
m_manager(m),

2
src/ast/ast_smt2_pp.h
View file

@ -105,6 +105,8 @@ std::ostream & ast_smt2_pp(std::ostream & out, sort * s, smt2_pp_environment & e
std::ostream & ast_smt2_pp(std::ostream & out, func_decl * f, smt2_pp_environment & env, params_ref const & p = params_ref(), unsigned indent = 0, char const* cmd = "declare-fun");
std::ostream & ast_smt2_pp(std::ostream & out, func_decl * f, expr* e, smt2_pp_environment & env, params_ref const & p = params_ref(), unsigned indent = 0, char const* cmd = "define-fun");
std::ostream & ast_smt2_pp(std::ostream & out, symbol const& s, bool is_skolem, smt2_pp_environment & env, params_ref const& p = params_ref());
std::ostream & ast_smt2_pp_recdefs(std::ostream & out, vector<std::pair<func_decl*, expr*>> const& funs, smt2_pp_environment & env, params_ref const & p = params_ref());
/**
\brief Internal wrapper (for debugging purposes only)

8
src/ast/ast_smt_pp.cpp
View file

@ -980,14 +980,6 @@ void ast_smt_pp::display_smt2(std::ostream& strm, expr* n) {
}
}
for (unsigned i = 0; i < decls.get_num_preds(); ++i) {
func_decl* d = decls.get_pred_decls()[i];
if (!(*m_is_declared)(d)) {
smt_printer p(strm, m, ql, rn, m_logic, true, true, m_simplify_implies, 0);
p(d);
strm << "\n";
}
}
#endif
for (expr* a : m_assumptions) {

8
src/ast/decl_collector.cpp
View file

@ -50,18 +50,14 @@ void decl_collector::visit_func(func_decl * n) {
if (!m_visited.is_marked(n)) {
family_id fid = n->get_family_id();
if (fid == null_family_id) {
if (m_sep_preds && is_bool(n->get_range()))
m_preds.push_back(n);
else
m_decls.push_back(n);
m_decls.push_back(n);
}
m_visited.mark(n, true);
}
}
decl_collector::decl_collector(ast_manager & m, bool preds):
decl_collector::decl_collector(ast_manager & m):
m_manager(m),
m_sep_preds(preds),
m_dt_util(m) {
m_basic_fid = m_manager.get_basic_family_id();
m_dt_fid = m_dt_util.get_family_id();

7
src/ast/decl_collector.h
View file

@ -26,10 +26,8 @@ Revision History:
class decl_collector {
ast_manager & m_manager;
bool m_sep_preds;
ptr_vector<sort> m_sorts;
ptr_vector<func_decl> m_decls;
ptr_vector<func_decl> m_preds;
ast_mark m_visited;
family_id m_basic_fid;
family_id m_dt_fid;
@ -46,8 +44,7 @@ class decl_collector {
public:
// if preds == true, then predicates are stored in a separate collection.
decl_collector(ast_manager & m, bool preds = true);
decl_collector(ast_manager & m);
ast_manager & m() { return m_manager; }
void visit_func(func_decl* n);
@ -59,11 +56,9 @@ public:
unsigned get_num_sorts() const { return m_sorts.size(); }
unsigned get_num_decls() const { return m_decls.size(); }
unsigned get_num_preds() const { return m_preds.size(); }
sort * const * get_sorts() const { return m_sorts.c_ptr(); }
func_decl * const * get_func_decls() const { return m_decls.c_ptr(); }
func_decl * const * get_pred_decls() const { return m_preds.c_ptr(); }
};
#endif

2
src/ast/recfun_decl_plugin.cpp
View file

@ -369,7 +369,7 @@ namespace recfun {
}
namespace decl {
plugin::plugin() : decl_plugin(), m_defs(), m_case_defs(), m_def_block() {}
plugin::plugin() : decl_plugin(), m_defs(), m_case_defs() {}
plugin::~plugin() { finalize(); }
void plugin::finalize() {

13
src/ast/recfun_decl_plugin.h
View file

@ -143,9 +143,8 @@ namespace recfun {
typedef obj_map<func_decl, case_def*> case_def_map;
mutable scoped_ptr<util> m_util;
def_map m_defs; // function->def
case_def_map m_case_defs; // case_pred->def
svector<symbol> m_def_block;
def_map m_defs; // function->def
case_def_map m_case_defs; // case_pred->def
ast_manager & m() { return *m_manager; }
public:
@ -206,8 +205,11 @@ namespace recfun {
ast_manager & m() { return m_manager; }
th_rewriter & get_th_rewriter() { return m_th_rw; }
decl::plugin& get_plugin() { return *m_plugin; }
bool is_case_pred(expr * e) const { return is_app_of(e, m_fid, OP_FUN_CASE_PRED); }
bool is_defined(expr * e) const { return is_app_of(e, m_fid, OP_FUN_DEFINED); }
bool is_defined(func_decl* f) const { return is_decl_of(f, m_fid, OP_FUN_DEFINED); }
bool is_depth_limit(expr * e) const { return is_app_of(e, m_fid, OP_DEPTH_LIMIT); }
bool owns_app(app * e) const { return e->get_family_id() == m_fid; }
@ -242,11 +244,6 @@ namespace recfun {
app_ref mk_depth_limit_pred(unsigned d);
decl::plugin& get_plugin() { return *m_plugin; }
};
}
typedef recfun::def recfun_def;
typedef recfun::case_def recfun_case_def;
typedef recfun::decl::plugin recfun_decl_plugin;
typedef recfun::util recfun_util;

2
src/ast/reg_decl_plugins.cpp
View file

@ -42,7 +42,7 @@ void reg_decl_plugins(ast_manager & m) {
m.register_plugin(symbol("datatype"), alloc(datatype_decl_plugin));
}
if (!m.get_plugin(m.mk_family_id(symbol("recfun")))) {
m.register_plugin(symbol("recfun"), alloc(recfun_decl_plugin));
m.register_plugin(symbol("recfun"), alloc(recfun::decl::plugin));
}
if (!m.get_plugin(m.mk_family_id(symbol("datalog_relation")))) {
m.register_plugin(symbol("datalog_relation"), alloc(datalog::dl_decl_plugin));

12
src/cmd_context/cmd_context.cpp
View file

@ -693,7 +693,7 @@ void cmd_context::init_manager_core(bool new_manager) {
register_plugin(symbol("bv"), alloc(bv_decl_plugin), logic_has_bv());
register_plugin(symbol("array"), alloc(array_decl_plugin), logic_has_array());
register_plugin(symbol("datatype"), alloc(datatype_decl_plugin), logic_has_datatype());
register_plugin(symbol("recfun"), alloc(recfun_decl_plugin), logic_has_recfun());
register_plugin(symbol("recfun"), alloc(recfun::decl::plugin), logic_has_recfun());
register_plugin(symbol("seq"), alloc(seq_decl_plugin), logic_has_seq());
register_plugin(symbol("pb"), alloc(pb_decl_plugin), logic_has_pb());
register_plugin(symbol("fpa"), alloc(fpa_decl_plugin), logic_has_fpa());
@ -899,7 +899,7 @@ void cmd_context::model_del(func_decl* f) {
}
recfun_decl_plugin& cmd_context::get_recfun_plugin() {
recfun::decl::plugin& cmd_context::get_recfun_plugin() {
recfun::util u(get_ast_manager());
return u.get_plugin();
}
@ -944,7 +944,7 @@ void cmd_context::insert_rec_fun(func_decl* f, expr_ref_vector const& binding, s
TRACE("recfun", tout<< "define recfun " << f->get_name() << " = " << mk_pp(rhs, m()) << "\n";);
recfun_decl_plugin& p = get_recfun_plugin();
recfun::decl::plugin& p = get_recfun_plugin();
var_ref_vector vars(m());
for (expr* b : binding) {
@ -2040,7 +2040,7 @@ void cmd_context::display_smt2_benchmark(std::ostream & out, unsigned num, expr
if (logic != symbol::null)
out << "(set-logic " << logic << ")" << std::endl;
// collect uninterpreted function declarations
decl_collector decls(m(), false);
decl_collector decls(m());
for (unsigned i = 0; i < num; i++) {
decls.visit(assertions[i]);
}
@ -2071,8 +2071,8 @@ void cmd_context::slow_progress_sample() {
svector<symbol> labels;
m_solver->get_labels(labels);
regular_stream() << "(labels";
for (unsigned i = 0; i < labels.size(); i++) {
regular_stream() << " " << labels[i];
for (symbol const& s : labels) {
regular_stream() << " " << s;
}
regular_stream() << "))" << std::endl;
}

2
src/cmd_context/cmd_context.h
View file

@ -307,7 +307,7 @@ protected:
void erase_macro(symbol const& s);
bool macros_find(symbol const& s, unsigned n, expr*const* args, expr*& t) const;
recfun_decl_plugin& get_recfun_plugin();
recfun::decl::plugin& get_recfun_plugin();
public:
cmd_context(bool main_ctx = true, ast_manager * m = nullptr, symbol const & l = symbol::null);

29
src/model/model_smt2_pp.cpp
View file

@ -21,6 +21,7 @@ Revision History:
#include "model/model_smt2_pp.h"
#include "ast/ast_smt2_pp.h"
#include "ast/func_decl_dependencies.h"
#include "ast/recfun_decl_plugin.h"
#include "ast/pp.h"
using namespace format_ns;
@ -60,11 +61,9 @@ static void pp_uninterp_sorts(std::ostream & out, ast_printer_context & ctx, mod
ctx.display(buffer, s, 13);
buffer << ":\n";
pp_indent(buffer, TAB_SZ);
ptr_vector<expr>::const_iterator it = u.begin();
ptr_vector<expr>::const_iterator end = u.end();
for (; it != end; ++it) {
SASSERT(is_app(*it));
app * c = to_app(*it);
for (expr* e : u) {
SASSERT(is_app(e));
app * c = to_app(e);
pp_symbol(buffer, c->get_decl()->get_name());
buffer << " ";
}
@ -87,9 +86,8 @@ static void pp_uninterp_sorts(std::ostream & out, ast_printer_context & ctx, mod
out << "\n";
pp_indent(out, indent);
out << ";; definitions for universe elements:\n";
it = u.begin();
for (; it != end; ++it) {
app * c = to_app(*it);
for (expr * e : u) {
app * c = to_app(e);
pp_indent(out, indent);
out << "(declare-fun ";
unsigned len = pp_symbol(out, c->get_decl()->get_name());
@ -101,9 +99,8 @@ static void pp_uninterp_sorts(std::ostream & out, ast_printer_context & ctx, mod
out << ";; cardinality constraint:\n";
f_conds.reset();
format * var = mk_string(m, "x");
it = u.begin();
for (; it != end; ++it) {
app * c = to_app(*it);
for (expr* e : u) {
app * c = to_app(e);
symbol csym = c->get_decl()->get_name();
std::string cname;
if (is_smt2_quoted_symbol(csym))
@ -170,10 +167,7 @@ void sort_fun_decls(ast_manager & m, model_core const & md, ptr_buffer<func_decl
func_decl_set deps;
bool all_visited = true;
collect_func_decls(m, curr_i->get_else(), deps);
func_decl_set::iterator it2 = deps.begin();
func_decl_set::iterator end2 = deps.end();
for (; it2 != end2; ++it2) {
func_decl * d = *it2;
for (func_decl * d : deps) {
if (d->get_arity() > 0 && md.has_interpretation(d) && !visited.contains(d)) {
todo.push_back(d);
visited.insert(d);
@ -189,8 +183,10 @@ void sort_fun_decls(ast_manager & m, model_core const & md, ptr_buffer<func_decl
}
}
static void pp_funs(std::ostream & out, ast_printer_context & ctx, model_core const & md, unsigned indent) {
ast_manager & m = ctx.get_ast_manager();
recfun::util recfun_util(m);
sbuffer<symbol> var_names;
ptr_buffer<format> f_var_names;
ptr_buffer<format> f_arg_decls;
@ -200,6 +196,9 @@ static void pp_funs(std::ostream & out, ast_printer_context & ctx, model_core co
sort_fun_decls(m, md, func_decls);
for (unsigned i = 0; i < func_decls.size(); i++) {
func_decl * f = func_decls[i];
if (recfun_util.is_defined(f)) {
continue;
}
func_interp * f_i = md.get_func_interp(f);
SASSERT(f->get_arity() == f_i->get_arity());
format_ref body(fm(m));

2
src/smt/theory_recfun.cpp
View file

@ -31,7 +31,7 @@ namespace smt {
theory_recfun::theory_recfun(ast_manager & m)
: theory(m.mk_family_id("recfun")),
m(m),
m_plugin(*reinterpret_cast<recfun_decl_plugin*>(m.get_plugin(get_family_id()))),
m_plugin(*reinterpret_cast<recfun::decl::plugin*>(m.get_plugin(get_family_id()))),
m_util(m_plugin.u()),
m_preds(m),
m_max_depth(0),

16
src/smt/theory_recfun.h
View file

@ -36,9 +36,9 @@ namespace smt {
// one case-expansion of `f(t1...tn)`
struct case_expansion {
app * m_lhs; // the term to expand
recfun_def * m_def;
recfun::def * m_def;
ptr_vector<expr> m_args;
case_expansion(recfun_util& u, app * n) :
case_expansion(recfun::util& u, app * n) :
m_lhs(n), m_def(nullptr), m_args() {
SASSERT(u.is_defined(n));
func_decl * d = n->get_decl();
@ -66,14 +66,14 @@ namespace smt {
// one body-expansion of `f(t1...tn)` using a `C_f_i(t1...tn)`
struct body_expansion {
app* m_pred;
recfun_case_def const * m_cdef;
recfun::case_def const * m_cdef;
ptr_vector<expr> m_args;
body_expansion(recfun_util& u, app * n) : m_pred(n), m_cdef(0), m_args() {
body_expansion(recfun::util& u, app * n) : m_pred(n), m_cdef(0), m_args() {
m_cdef = &u.get_case_def(n);
m_args.append(n->get_num_args(), n->get_args());
}
body_expansion(app* pred, recfun_case_def const & d, ptr_vector<expr> & args) :
body_expansion(app* pred, recfun::case_def const & d, ptr_vector<expr> & args) :
m_pred(pred), m_cdef(&d), m_args(args) {}
body_expansion(body_expansion const & from):
m_pred(from.m_pred), m_cdef(from.m_cdef), m_args(from.m_args) {}
@ -90,8 +90,8 @@ namespace smt {
friend std::ostream& operator<<(std::ostream&, pp_body_expansion const &);
ast_manager& m;
recfun_decl_plugin& m_plugin;
recfun_util& m_util;
recfun::decl::plugin& m_plugin;
recfun::util& m_util;
stats m_stats;
// book-keeping for depth of predicates
@ -104,7 +104,7 @@ namespace smt {
ptr_vector<body_expansion> m_q_body_expand;
vector<literal_vector> m_q_clauses;
recfun_util & u() const { return m_util; }
recfun::util & u() const { return m_util; }
bool is_defined(app * f) const { return u().is_defined(f); }
bool is_case_pred(app * f) const { return u().is_case_pred(f); }