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

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This commit is contained in:
Christoph M. Wintersteiger 2017-03-07 18:10:31 +00:00
commit b57764800c
24 changed files with 415 additions and 116 deletions
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7
CMakeLists.txt
View file

@ -112,6 +112,13 @@ else()
set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS ${available_build_types})
endif()
message(STATUS "Build type: ${CMAKE_BUILD_TYPE}")
# Check the selected build type is valid
list(FIND available_build_types "${CMAKE_BUILD_TYPE}" _build_type_index)
if ("${_build_type_index}" EQUAL "-1")
message(FATAL_ERROR "\"${CMAKE_BUILD_TYPE}\" is an invalid build type.\n"
"Use one of the following build types ${available_build_types}")
endif()
endif()
# CMAKE_BUILD_TYPE has no meaning for multi-configuration generators

18
doc/mk_api_doc.py
View file

@ -12,10 +12,6 @@ import shutil
ML_ENABLED=False
BUILD_DIR='../build'
def norm_path(p):
# We use '/' on mk_project for convenience
return os.path.join(*(p.split('/')))
def display_help(exit_code):
print("mk_api_doc.py: Z3 documentation generator\n")
print("\nOptions:")
@ -36,12 +32,12 @@ def parse_options():
for opt, arg in options:
if opt in ('-b', '--build'):
BUILD_DIR = norm_path(arg)
BUILD_DIR = mk_util.norm_path(arg)
elif opt in ('h', '--help'):
display_help()
exit(1)
elif opt in ('--ml'):
ML_ENABLED=True
ML_ENABLED=True
else:
print("ERROR: Invalid command line option: %s" % opt)
display_help(1)
@ -59,7 +55,7 @@ def cleanup_API(inf, outf):
pat1 = re.compile(".*def_API.*")
pat2 = re.compile(".*extra_API.*")
_inf = open(inf, 'r')
_outf = open(outf, 'w')
_outf = open(outf, 'w')
for line in _inf:
if not pat1.match(line) and not pat2.match(line):
_outf.write(line)
@ -90,9 +86,9 @@ try:
cleanup_API('../src/api/z3_rcf.h', 'tmp/z3_rcf.h')
cleanup_API('../src/api/z3_fixedpoint.h', 'tmp/z3_fixedpoint.h')
cleanup_API('../src/api/z3_optimization.h', 'tmp/z3_optimization.h')
cleanup_API('../src/api/z3_interp.h', 'tmp/z3_interp.h')
cleanup_API('../src/api/z3_interp.h', 'tmp/z3_interp.h')
cleanup_API('../src/api/z3_fpa.h', 'tmp/z3_fpa.h')
print("Removed annotations from z3_api.h.")
try:
if subprocess.call(['doxygen', 'z3api.dox']) != 0:
@ -112,7 +108,7 @@ try:
os.remove('tmp/z3_interp.h')
os.remove('tmp/z3_fpa.h')
print("Removed temporary file header files.")
os.remove('tmp/website.dox')
print("Removed temporary file website.dox")
os.remove('tmp/z3py.py')
@ -130,7 +126,7 @@ try:
print("ERROR: ocamldoc failed.")
exit(1)
print("Generated ML/OCaml documentation.")
print("Documentation was successfully generated at subdirectory './api/html'.")
except:
exctype, value = sys.exc_info()[:2]

12
scripts/mk_unix_dist.py
View file

@ -1,7 +1,7 @@
############################################
# Copyright (c) 2013 Microsoft Corporation
#
# Scripts for automatically generating
#
# Scripts for automatically generating
# Linux/OSX/BSD distribution zip files.
#
# Author: Leonardo de Moura (leonardo)
@ -42,7 +42,7 @@ def mk_dir(d):
def set_build_dir(path):
global BUILD_DIR
BUILD_DIR = path
BUILD_DIR = mk_util.norm_path(path)
mk_dir(BUILD_DIR)
def display_help():
@ -65,7 +65,7 @@ def display_help():
def parse_options():
global FORCE_MK, JAVA_ENABLED, GIT_HASH, DOTNET_ENABLED, DOTNET_KEY_FILE
path = BUILD_DIR
options, remainder = getopt.gnu_getopt(sys.argv[1:], 'b:hsf', ['build=',
options, remainder = getopt.gnu_getopt(sys.argv[1:], 'b:hsf', ['build=',
'help',
'silent',
'force',
@ -89,7 +89,7 @@ def parse_options():
elif opt == '--nodotnet':
DOTNET_ENABLED = False
elif opt == '--nopython':
PYTHON_ENABLED = False
PYTHON_ENABLED = False
elif opt == '--dotnet-key':
DOTNET_KEY_FILE = arg
elif opt == '--nojava':
@ -121,7 +121,7 @@ def mk_build_dir(path):
opts.append('--python')
if subprocess.call(opts) != 0:
raise MKException("Failed to generate build directory at '%s'" % path)
# Create build directories
def mk_build_dirs():
mk_build_dir(BUILD_DIR)

23
scripts/mk_util.py
View file

@ -153,8 +153,7 @@ def is_cygwin_mingw():
return IS_CYGWIN_MINGW
def norm_path(p):
# We use '/' on mk_project for convenience
return os.path.join(*(p.split('/')))
return os.path.expanduser(os.path.normpath(p))
def which(program):
import os
@ -1393,7 +1392,7 @@ class DLLComponent(Component):
shutil.copy('%s.a' % os.path.join(build_path, self.dll_name),
'%s.a' % os.path.join(dist_path, INSTALL_BIN_DIR, self.dll_name))
class PythonComponent(Component):
class PythonComponent(Component):
def __init__(self, name, libz3Component):
assert isinstance(libz3Component, DLLComponent)
global PYTHON_ENABLED
@ -1418,7 +1417,7 @@ class PythonComponent(Component):
def mk_makefile(self, out):
return
class PythonInstallComponent(Component):
def __init__(self, name, libz3Component):
assert isinstance(libz3Component, DLLComponent)
@ -1521,7 +1520,7 @@ class PythonInstallComponent(Component):
os.path.join('python', 'z3', '*.pyc'),
os.path.join(self.pythonPkgDir,'z3'),
in_prefix=self.in_prefix_install)
if PYTHON_PACKAGE_DIR != distutils.sysconfig.get_python_lib():
out.write('\t@echo Z3Py was installed at \'%s\', make sure this directory is in your PYTHONPATH environment variable.' % PYTHON_PACKAGE_DIR)
@ -1586,7 +1585,7 @@ class DotNetDLLComponent(Component):
def mk_makefile(self, out):
global DOTNET_KEY_FILE
if not is_dotnet_enabled():
return
cs_fp_files = []
@ -1631,7 +1630,7 @@ class DotNetDLLComponent(Component):
else:
print("Keyfile '%s' could not be found; %s.dll will be unsigned." % (self.key_file, self.dll_name))
self.key_file = None
if not self.key_file is None:
print("%s.dll will be signed using key '%s'." % (self.dll_name, self.key_file))
cscCmdLine.append('/keyfile:{}'.format(self.key_file))
@ -1658,7 +1657,7 @@ class DotNetDLLComponent(Component):
)
else:
cscCmdLine.extend(['/optimize+'])
if IS_WINDOWS:
if VS_X64:
cscCmdLine.extend(['/platform:x64'])
@ -1962,7 +1961,7 @@ class MLComponent(Component):
OCAMLMKLIB = 'ocamlmklib'
LIBZ3 = '-L. -lz3'
LIBZ3 = '-L. -lz3'
if is_cygwin() and not(is_cygwin_mingw()):
LIBZ3 = 'libz3.dll'
@ -2214,7 +2213,7 @@ class PythonExampleComponent(ExampleComponent):
def mk_win_dist(self, build_path, dist_path):
full = os.path.join(EXAMPLE_DIR, self.path)
py = 'example.py'
shutil.copyfile(os.path.join(full, py),
shutil.copyfile(os.path.join(full, py),
os.path.join(dist_path, INSTALL_BIN_DIR, 'python', py))
def mk_unix_dist(self, build_path, dist_path):
@ -2263,7 +2262,7 @@ def add_java_dll(name, deps=[], path=None, dll_name=None, package_name=None, man
def add_python(libz3Component):
name = 'python'
reg_component(name, PythonComponent(name, libz3Component))
def add_python_install(libz3Component):
name = 'python_install'
reg_component(name, PythonInstallComponent(name, libz3Component))
@ -2689,7 +2688,7 @@ def get_full_version_string(major, minor, build, revision):
branch = check_output(['git', 'rev-parse', '--abbrev-ref', 'HEAD', '--long'])
res += " master " + check_output(['git', 'describe'])
return '"' + res + '"'
# Update files with the version number
def mk_version_dot_h(major, minor, build, revision):
c = get_component(UTIL_COMPONENT)

22
scripts/mk_win_dist.py
View file

@ -1,7 +1,7 @@
############################################
# Copyright (c) 2012 Microsoft Corporation
#
# Scripts for automatically generating
#
# Scripts for automatically generating
# Window distribution zip files.
#
# Author: Leonardo de Moura (leonardo)
@ -46,7 +46,7 @@ def mk_dir(d):
def set_build_dir(path):
global BUILD_DIR, BUILD_X86_DIR, BUILD_X64_DIR
BUILD_DIR = path
BUILD_DIR = mk_util.norm_path(path)
BUILD_X86_DIR = os.path.join(path, 'x86')
BUILD_X64_DIR = os.path.join(path, 'x64')
mk_dir(BUILD_X86_DIR)
@ -74,7 +74,7 @@ def display_help():
def parse_options():
global FORCE_MK, JAVA_ENABLED, GIT_HASH, DOTNET_ENABLED, DOTNET_KEY_FILE, PYTHON_ENABLED, X86ONLY, X64ONLY
path = BUILD_DIR
options, remainder = getopt.gnu_getopt(sys.argv[1:], 'b:hsf', ['build=',
options, remainder = getopt.gnu_getopt(sys.argv[1:], 'b:hsf', ['build=',
'help',
'silent',
'force',
@ -102,7 +102,7 @@ def parse_options():
elif opt == '--nopython':
PYTHON_ENABLED = False
elif opt == '--dotnet-key':
DOTNET_KEY_FILE = arg
DOTNET_KEY_FILE = arg
elif opt == '--nojava':
JAVA_ENABLED = False
elif opt == '--githash':
@ -139,7 +139,7 @@ def mk_build_dir(path, x64):
opts.append('--python')
if subprocess.call(opts) != 0:
raise MKException("Failed to generate build directory at '%s'" % path)
# Create build directories
def mk_build_dirs():
mk_build_dir(BUILD_X86_DIR, False)
@ -176,7 +176,7 @@ def mk_z3(x64):
cmds = []
if x64:
cmds.append('call "%VCINSTALLDIR%vcvarsall.bat" amd64')
cmds.append('cd %s' % BUILD_X64_DIR)
cmds.append('cd %s' % BUILD_X64_DIR)
else:
cmds.append('call "%VCINSTALLDIR%vcvarsall.bat" x86')
cmds.append('cd %s' % BUILD_X86_DIR)
@ -248,12 +248,12 @@ def mk_zips():
VS_RUNTIME_PATS = [re.compile('vcomp.*\.dll'),
re.compile('msvcp.*\.dll'),
re.compile('msvcr.*\.dll')]
# Copy Visual Studio Runtime libraries
def cp_vs_runtime(x64):
def cp_vs_runtime(x64):
if x64:
platform = "x64"
else:
platform = "x86"
vcdir = os.environ['VCINSTALLDIR']
@ -261,7 +261,7 @@ def cp_vs_runtime(x64):
VS_RUNTIME_FILES = []
for root, dirs, files in os.walk(path):
for filename in files:
if fnmatch(filename, '*.dll'):
if fnmatch(filename, '*.dll'):
for pat in VS_RUNTIME_PATS:
if pat.match(filename):
fname = os.path.join(root, filename)

3
scripts/update_api.py
View file

@ -710,6 +710,9 @@ def mk_java(java_dir, package_name):
java_wrapper.write(' }\n')
elif k == OUT_MANAGED_ARRAY:
java_wrapper.write(' *(jlong**)a%s = (jlong*)_a%s;\n' % (i, i))
elif k == IN and param_type(param) == STRING:
java_wrapper.write(' jenv->ReleaseStringUTFChars(a%s, _a%s);\n' % (i, i));
i = i + 1
# return
if result == STRING:

28
src/api/api_opt.cpp
View file

@ -218,6 +218,34 @@ extern "C" {
Z3_CATCH_RETURN(0);
}
// get lower value or current approximation
Z3_ast_vector Z3_API Z3_optimize_get_lower_as_vector(Z3_context c, Z3_optimize o, unsigned idx) {
Z3_TRY;
LOG_Z3_optimize_get_lower_as_vector(c, o, idx);
RESET_ERROR_CODE();
expr_ref_vector es(mk_c(c)->m());
to_optimize_ptr(o)->get_lower(idx, es);
Z3_ast_vector_ref * v = alloc(Z3_ast_vector_ref, *mk_c(c), mk_c(c)->m());
mk_c(c)->save_object(v);
v->m_ast_vector.append(es.size(), (ast*const*)es.c_ptr());
RETURN_Z3(of_ast_vector(v));
Z3_CATCH_RETURN(0);
}
// get upper or current approximation
Z3_ast_vector Z3_API Z3_optimize_get_upper_as_vector(Z3_context c, Z3_optimize o, unsigned idx) {
Z3_TRY;
LOG_Z3_optimize_get_upper_as_vector(c, o, idx);
RESET_ERROR_CODE();
expr_ref_vector es(mk_c(c)->m());
to_optimize_ptr(o)->get_upper(idx, es);
Z3_ast_vector_ref * v = alloc(Z3_ast_vector_ref, *mk_c(c), mk_c(c)->m());
mk_c(c)->save_object(v);
v->m_ast_vector.append(es.size(), (ast*const*)es.c_ptr());
RETURN_Z3(of_ast_vector(v));
Z3_CATCH_RETURN(0);
}
Z3_string Z3_API Z3_optimize_to_string(Z3_context c, Z3_optimize o) {
Z3_TRY;
LOG_Z3_optimize_to_string(c, o);

16
src/api/c++/z3++.h
View file

@ -1986,6 +1986,8 @@ namespace z3 {
friend tactic repeat(tactic const & t, unsigned max);
friend tactic with(tactic const & t, params const & p);
friend tactic try_for(tactic const & t, unsigned ms);
friend tactic par_or(unsigned n, tactic const* tactics);
friend tactic par_and_then(tactic const& t1, tactic const& t2);
param_descrs get_param_descrs() { return param_descrs(ctx(), Z3_tactic_get_param_descrs(ctx(), m_tactic)); }
};
@ -2019,7 +2021,21 @@ namespace z3 {
t.check_error();
return tactic(t.ctx(), r);
}
inline tactic par_or(unsigned n, tactic const* tactics) {
if (n == 0) {
throw exception("a non-zero number of tactics need to be passed to par_or");
}
array<Z3_tactic> buffer(n);
for (unsigned i = 0; i < n; ++i) buffer[i] = tactics[i];
return tactic(tactics[0].ctx(), Z3_tactic_par_or(tactics[0].ctx(), n, buffer.ptr()));
}
inline tactic par_and_then(tactic const & t1, tactic const & t2) {
check_context(t1, t2);
Z3_tactic r = Z3_tactic_par_and_then(t1.ctx(), t1, t2);
t1.check_error();
return tactic(t1.ctx(), r);
}
class probe : public object {
Z3_probe m_probe;

36
src/api/dotnet/Optimize.cs
View file

@ -144,6 +144,23 @@ namespace Microsoft.Z3
{
get { return Lower; }
}
/// <summary>
/// Retrieve a lower bound for the objective handle.
/// </summary>
public ArithExpr[] LowerAsVector
{
get { return opt.GetLowerAsVector(handle); }
}
/// <summary>
/// Retrieve an upper bound for the objective handle.
/// </summary>
public ArithExpr[] UpperAsVector
{
get { return opt.GetUpperAsVector(handle); }
}
}
/// <summary>
@ -255,6 +272,25 @@ namespace Microsoft.Z3
return (ArithExpr)Expr.Create(Context, Native.Z3_optimize_get_upper(Context.nCtx, NativeObject, index));
}
/// <summary>
/// Retrieve a lower bound for the objective handle.
/// </summary>
private ArithExpr[] GetLowerAsVector(uint index)
{
ASTVector v = new ASTVector(Context, Native.Z3_optimize_get_lower_as_vector(Context.nCtx, NativeObject, index));
return v.ToArithExprArray();
}
/// <summary>
/// Retrieve an upper bound for the objective handle.
/// </summary>
private ArithExpr[] GetUpperAsVector(uint index)
{
ASTVector v = new ASTVector(Context, Native.Z3_optimize_get_upper_as_vector(Context.nCtx, NativeObject, index));
return v.ToArithExprArray();
}
/// <summary>
/// Return a string the describes why the last to check returned unknown
/// </summary>

184
src/api/java/Optimize.java
View file

@ -14,7 +14,6 @@ Author:
Nikolaj Bjorner (nbjorner) 2015-07-16
Notes:
**/
package com.microsoft.z3;
@ -23,10 +22,10 @@ import com.microsoft.z3.enumerations.Z3_lbool;
/**
* Object for managing optimizization context
* Object for managing optimization context
**/
public class Optimize extends Z3Object
{
public class Optimize extends Z3Object {
/**
* A string that describes all available optimize solver parameters.
**/
@ -55,7 +54,7 @@ public class Optimize extends Z3Object
/**
* Assert a constraint (or multiple) into the optimize solver.
**/
**/
public void Assert(BoolExpr ... constraints)
{
getContext().checkContextMatch(constraints);
@ -67,80 +66,101 @@ public class Optimize extends Z3Object
/**
* Alias for Assert.
**/
**/
public void Add(BoolExpr ... constraints)
{
Assert(constraints);
Assert(constraints);
}
/**
* Handle to objectives returned by objective functions.
**/
public class Handle
{
Optimize opt;
int handle;
Handle(Optimize opt, int h)
{
this.opt = opt;
this.handle = h;
}
/**
* Retrieve a lower bound for the objective handle.
**/
public ArithExpr getLower()
{
return opt.GetLower(handle);
}
/**
* Retrieve an upper bound for the objective handle.
**/
public ArithExpr getUpper()
{
return opt.GetUpper(handle);
}
/**
* Retrieve the value of an objective.
**/
public ArithExpr getValue()
{
return getLower();
}
public static class Handle {
/**
* Print a string representation of the handle.
**/
@Override
public String toString()
private final Optimize opt;
private final int handle;
Handle(Optimize opt, int h)
{
this.opt = opt;
this.handle = h;
}
/**
* Retrieve a lower bound for the objective handle.
**/
public ArithExpr getLower()
{
return opt.GetLower(handle);
}
/**
* Retrieve an upper bound for the objective handle.
**/
public ArithExpr getUpper()
{
return opt.GetUpper(handle);
}
/**
* @return a triple representing the upper bound of the objective handle.
*
* The triple contains values {@code inf, value, eps},
* where the objective value is unbounded iff {@code inf} is non-zero,
* and otherwise is represented by the expression {@code value + eps * EPSILON},
* where {@code EPSILON} is an arbitrarily small real number.
*/
public ArithExpr[] getUpperAsVector()
{
return opt.GetUpperAsVector(handle);
}
/**
* @return a triple representing the upper bound of the objective handle.
*
* <p>See {@link #getUpperAsVector()} for triple semantics.
*/
public ArithExpr[] getLowerAsVector()
{
return opt.GetLowerAsVector(handle);
}
/**
* Retrieve the value of an objective.
**/
public ArithExpr getValue()
{
return getLower();
}
/**
* Print a string representation of the handle.
**/
@Override
public String toString()
{
return getValue().toString();
}
}
/**
/**
* Assert soft constraint
*
* Return an objective which associates with the group of constraints.
*
**/
**/
public Handle AssertSoft(BoolExpr constraint, int weight, String group)
{
getContext().checkContextMatch(constraint);
Symbol s = getContext().mkSymbol(group);
return new Handle(this, Native.optimizeAssertSoft(getContext().nCtx(), getNativeObject(), constraint.getNativeObject(), Integer.toString(weight), s.getNativeObject()));
}
/**
/**
* Check satisfiability of asserted constraints.
* Produce a model that (when the objectives are bounded and
* don't use strict inequalities) meets the objectives.
**/
public Status Check()
{
Z3_lbool r = Z3_lbool.fromInt(Native.optimizeCheck(getContext().nCtx(), getNativeObject()));
@ -153,7 +173,7 @@ public class Optimize extends Z3Object
return Status.UNKNOWN;
}
}
/**
* Creates a backtracking point.
**/
@ -162,13 +182,11 @@ public class Optimize extends Z3Object
Native.optimizePush(getContext().nCtx(), getNativeObject());
}
/**
/**
* Backtrack one backtracking point.
*
* Note that an exception is thrown if Pop is called without a corresponding Push.
**/
public void Pop()
{
Native.optimizePop(getContext().nCtx(), getNativeObject());
@ -191,7 +209,7 @@ public class Optimize extends Z3Object
}
}
/**
/**
* Declare an arithmetical maximization objective.
* Return a handle to the objective. The handle is used as
* to retrieve the values of objectives after calling Check.
@ -200,11 +218,11 @@ public class Optimize extends Z3Object
{
return new Handle(this, Native.optimizeMaximize(getContext().nCtx(), getNativeObject(), e.getNativeObject()));
}
/**
* Declare an arithmetical minimization objective.
* Similar to MkMaximize.
**/
**/
public Handle MkMinimize(ArithExpr e)
{
return new Handle(this, Native.optimizeMinimize(getContext().nCtx(), getNativeObject(), e.getNativeObject()));
@ -212,21 +230,56 @@ public class Optimize extends Z3Object
/**
* Retrieve a lower bound for the objective handle.
**/
**/
private ArithExpr GetLower(int index)
{
return (ArithExpr)Expr.create(getContext(), Native.optimizeGetLower(getContext().nCtx(), getNativeObject(), index));
}
/**
* Retrieve an upper bound for the objective handle.
**/
**/
private ArithExpr GetUpper(int index)
{
return (ArithExpr)Expr.create(getContext(), Native.optimizeGetUpper(getContext().nCtx(), getNativeObject(), index));
}
/**
* @return Triple representing the upper bound for the objective handle.
*
* <p>See {@link Handle#getUpperAsVector}.
*/
private ArithExpr[] GetUpperAsVector(int index) {
return unpackObjectiveValueVector(
Native.optimizeGetUpperAsVector(
getContext().nCtx(), getNativeObject(), index
)
);
}
/**
* @return Triple representing the upper bound for the objective handle.
*
* <p>See {@link Handle#getLowerAsVector}.
*/
private ArithExpr[] GetLowerAsVector(int index) {
return unpackObjectiveValueVector(
Native.optimizeGetLowerAsVector(
getContext().nCtx(), getNativeObject(), index
)
);
}
private ArithExpr[] unpackObjectiveValueVector(long nativeVec) {
ASTVector vec = new ASTVector(
getContext(), nativeVec
);
return new ArithExpr[] {
(ArithExpr) vec.get(0), (ArithExpr) vec.get(1), (ArithExpr) vec.get(2)
};
}
/**
* Return a string the describes why the last to check returned unknown
**/
@ -235,8 +288,7 @@ public class Optimize extends Z3Object
return Native.optimizeGetReasonUnknown(getContext().nCtx(),
getNativeObject());
}
/**
* Print the context to a String (SMT-LIB parseable benchmark).
**/
@ -245,7 +297,7 @@ public class Optimize extends Z3Object
{
return Native.optimizeToString(getContext().nCtx(), getNativeObject());
}
/**
* Optimize statistics.
**/

22
src/api/python/z3/z3.py
View file

@ -6719,12 +6719,24 @@ class OptimizeObjective:
opt = self._opt
return _to_expr_ref(Z3_optimize_get_upper(opt.ctx.ref(), opt.optimize, self._value), opt.ctx)
def lower_values(self):
opt = self._opt
return AstVector(Z3_optimize_get_lower_as_vector(opt.ctx.ref(), opt.optimize, self._value), opt.ctx)
def upper_values(self):
opt = self._opt
return AstVector(Z3_optimize_get_upper_as_vector(opt.ctx.ref(), opt.optimize, self._value), opt.ctx)
def value(self):
if self._is_max:
return self.upper()
else:
return self.lower()
def __str__(self):
return "%s:%s" % (self._value, self._is_max)
class Optimize(Z3PPObject):
"""Optimize API provides methods for solving using objective functions and weighted soft constraints"""
@ -6829,6 +6841,16 @@ class Optimize(Z3PPObject):
raise Z3Exception("Expecting objective handle returned by maximize/minimize")
return obj.upper()
def lower_values(self, obj):
if not isinstance(obj, OptimizeObjective):
raise Z3Exception("Expecting objective handle returned by maximize/minimize")
return obj.lower_values()
def upper_values(self, obj):
if not isinstance(obj, OptimizeObjective):
raise Z3Exception("Expecting objective handle returned by maximize/minimize")
return obj.upper_values()
def from_file(self, filename):
"""Parse assertions and objectives from a file"""
Z3_optimize_from_file(self.ctx.ref(), self.optimize, filename)

2
src/api/python/z3/z3printer.py
View file

@ -678,7 +678,7 @@ class Formatter:
if self.fpa_pretty:
if self.is_infix(k) and n >= 3:
rm = a.arg(0)
if z3.is_fprm_value(rm) and z3._dflt_rm(a.ctx).eq(rm):
if z3.is_fprm_value(rm) and z3.get_default_rounding_mode(a.ctx).eq(rm):
arg1 = to_format(self.pp_expr(a.arg(1), d+1, xs))
arg2 = to_format(self.pp_expr(a.arg(2), d+1, xs))
r = []

27
src/api/z3_optimization.h
View file

@ -186,6 +186,33 @@ extern "C" {
*/
Z3_ast Z3_API Z3_optimize_get_upper(Z3_context c, Z3_optimize o, unsigned idx);
/**
\brief Retrieve lower bound value or approximation for the i'th optimization objective.
The returned vector is of length 3. It always contains numerals.
The three numerals are coefficients a, b, c and encode the result of \c Z3_optimize_get_lower
a * infinity + b + c * epsilon.
\param c - context
\param o - optimization context
\param idx - index of optimization objective
def_API('Z3_optimize_get_lower_as_vector', AST_VECTOR, (_in(CONTEXT), _in(OPTIMIZE), _in(UINT)))
*/
Z3_ast_vector Z3_API Z3_optimize_get_lower_as_vector(Z3_context c, Z3_optimize o, unsigned idx);
/**
\brief Retrieve upper bound value or approximation for the i'th optimization objective.
\param c - context
\param o - optimization context
\param idx - index of optimization objective
def_API('Z3_optimize_get_upper_as_vector', AST_VECTOR, (_in(CONTEXT), _in(OPTIMIZE), _in(UINT)))
*/
Z3_ast_vector Z3_API Z3_optimize_get_upper_as_vector(Z3_context c, Z3_optimize o, unsigned idx);
/**
\brief Print the current context as a string.
\param c - context.

2
src/ast/rewriter/enum2bv_rewriter.cpp
View file

@ -85,7 +85,7 @@ struct enum2bv_rewriter::imp {
void throw_non_fd(expr* e) {
std::stringstream strm;
strm << "unabled nested data-type expression " << mk_pp(e, m);
strm << "unable to handle nested data-type expression " << mk_pp(e, m);
throw rewriter_exception(strm.str().c_str());
}

88
src/ast/seq_decl_plugin.cpp
View file

@ -38,8 +38,16 @@ static bool is_hex_digit(char ch, unsigned& d) {
return false;
}
static bool is_octal_digit(char ch, unsigned& d) {
if ('0' <= ch && ch <= '7') {
d = ch - '0';
return true;
}
return false;
}
static bool is_escape_char(char const *& s, unsigned& result) {
unsigned d1, d2;
unsigned d1, d2, d3;
if (*s != '\\' || *(s + 1) == 0) {
return false;
}
@ -49,6 +57,29 @@ static bool is_escape_char(char const *& s, unsigned& result) {
s += 4;
return true;
}
/* C-standard octal escapes: either 1, 2, or 3 octal digits,
* stopping either at 3 digits or at the first non-digit character.
*/
/* 1 octal digit */
if (is_octal_digit(*(s + 1), d1) && !is_octal_digit(*(s + 2), d2)) {
result = d1;
s += 2;
return true;
}
/* 2 octal digits */
if (is_octal_digit(*(s + 1), d1) && is_octal_digit(*(s + 2), d2) &&
!is_octal_digit(*(s + 3), d3)) {
result = d1 * 8 + d2;
s += 3;
return true;
}
/* 3 octal digits */
if (is_octal_digit(*(s + 1), d1) && is_octal_digit(*(s + 2), d2) &&
is_octal_digit(*(s + 3), d3)) {
result = d1*64 + d2*8 + d3;
s += 4;
return true;
}
switch (*(s + 1)) {
case 'a':
result = '\a';
@ -253,8 +284,54 @@ zstring zstring::operator+(zstring const& other) const {
return result;
}
std::ostream& zstring::operator<<(std::ostream& out) const {
return out << encode();
bool zstring::operator==(const zstring& other) const {
// two strings are equal iff they have the same length and characters
if (length() != other.length()) {
return false;
}
for (unsigned i = 0; i < length(); ++i) {
unsigned Xi = m_buffer[i];
unsigned Yi = other[i];
if (Xi != Yi) {
return false;
}
}
return true;
}
bool zstring::operator!=(const zstring& other) const {
return !(*this == other);
}
std::ostream& operator<<(std::ostream &os, const zstring &str) {
return os << str.encode();
}
bool operator<(const zstring& lhs, const zstring& rhs) {
// This has the same semantics as strcmp()
unsigned len = lhs.length();
if (rhs.length() < len) {
len = rhs.length();
}
for (unsigned i = 0; i < len; ++i) {
unsigned Li = lhs[i];
unsigned Ri = rhs[i];
if (Li < Ri) {
return true;
} else if (Li > Ri) {
return false;
} else {
continue;
}
}
// at this point, all compared characters are equal,
// so decide based on the relative lengths
if (lhs.length() < rhs.length()) {
return true;
} else {
return false;
}
}
@ -442,6 +519,7 @@ void seq_decl_plugin::init() {
sort* str2TintT[3] = { strT, strT, intT };
sort* seqAintT[2] = { seqA, intT };
sort* seq3A[3] = { seqA, seqA, seqA };
sort* reTintT[2] = { reT, intT };
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);
@ -485,6 +563,7 @@ void seq_decl_plugin::init() {
m_sigs[_OP_REGEXP_EMPTY] = alloc(psig, m, "re.nostr", 0, 0, 0, reT);
m_sigs[_OP_REGEXP_FULL] = alloc(psig, m, "re.allchar", 0, 0, 0, reT);
m_sigs[_OP_STRING_SUBSTR] = alloc(psig, m, "str.substr", 0, 3, strTint2T, strT);
m_sigs[_OP_RE_UNROLL] = alloc(psig, m, "_re.unroll", 0, 2, reTintT, strT);
}
void seq_decl_plugin::set_manager(ast_manager* m, family_id id) {
@ -641,6 +720,9 @@ func_decl * seq_decl_plugin::mk_func_decl(decl_kind k, unsigned num_parameters,
m.raise_exception("Incorrect number of arguments passed to loop. Expected 1 regular expression and two integer parameters");
}
case _OP_RE_UNROLL:
match(*m_sigs[k], arity, domain, range, rng);
return m.mk_func_decl(m_sigs[k]->m_name, arity, domain, rng, func_decl_info(m_family_id, k));
case OP_STRING_CONST:
if (!(num_parameters == 1 && arity == 0 && parameters[0].is_symbol())) {

8
src/ast/seq_decl_plugin.h
View file

@ -79,6 +79,7 @@ enum seq_op_kind {
_OP_REGEXP_EMPTY,
_OP_REGEXP_FULL,
_OP_SEQ_SKOLEM,
_OP_RE_UNROLL,
LAST_SEQ_OP
};
@ -113,7 +114,11 @@ public:
int indexof(zstring const& other, int offset) const;
zstring extract(int lo, int hi) const;
zstring operator+(zstring const& other) const;
std::ostream& operator<<(std::ostream& out) const;
bool operator==(const zstring& other) const;
bool operator!=(const zstring& other) const;
friend std::ostream& operator<<(std::ostream &os, const zstring &str);
friend bool operator<(const zstring& lhs, const zstring& rhs);
};
class seq_decl_plugin : public decl_plugin {
@ -334,6 +339,7 @@ public:
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_unroll(expr const* n) const { return is_app_of(n, m_fid, _OP_RE_UNROLL); }
};
str str;
re re;

2
src/cmd_context/tactic_cmds.cpp
View file

@ -223,7 +223,7 @@ public:
cmd_context::scoped_watch sw(ctx);
lbool r = l_undef;
try {
r = check_sat(t, g, md, result->labels, pr, core, reason_unknown);
r = check_sat(t, g, md, result->labels, pr, core, reason_unknown);
ctx.display_sat_result(r);
result->set_status(r);
if (r == l_undef) {

12
src/opt/opt_context.cpp
View file

@ -1290,6 +1290,15 @@ namespace opt {
return to_expr(get_upper_as_num(idx));
}
void context::to_exprs(inf_eps const& n, expr_ref_vector& es) {
rational inf = n.get_infinity();
rational r = n.get_rational();
rational eps = n.get_infinitesimal();
es.push_back(m_arith.mk_numeral(inf, inf.is_int()));
es.push_back(m_arith.mk_numeral(r, r.is_int()));
es.push_back(m_arith.mk_numeral(eps, eps.is_int()));
}
expr_ref context::to_expr(inf_eps const& n) {
rational inf = n.get_infinity();
rational r = n.get_rational();
@ -1455,9 +1464,10 @@ namespace opt {
void context::validate_maxsat(symbol const& id) {
maxsmt& ms = *m_maxsmts.find(id);
TRACE("opt", tout << "Validate: " << id << "\n";);
for (unsigned i = 0; i < m_objectives.size(); ++i) {
objective const& obj = m_objectives[i];
if (obj.m_id == id) {
if (obj.m_id == id && obj.m_type == O_MAXSMT) {
SASSERT(obj.m_type == O_MAXSMT);
rational value(0);
expr_ref val(m);

4
src/opt/opt_context.h
View file

@ -207,6 +207,9 @@ namespace opt {
expr_ref get_lower(unsigned idx);
expr_ref get_upper(unsigned idx);
void get_lower(unsigned idx, expr_ref_vector& es) { to_exprs(get_lower_as_num(idx), es); }
void get_upper(unsigned idx, expr_ref_vector& es) { to_exprs(get_upper_as_num(idx), es); }
std::string to_string() const;
@ -238,6 +241,7 @@ namespace opt {
lbool adjust_unknown(lbool r);
bool scoped_lex();
expr_ref to_expr(inf_eps const& n);
void to_exprs(inf_eps const& n, expr_ref_vector& es);
void reset_maxsmts();
void import_scoped_state();

5
src/smt/tactic/smt_tactic.cpp
View file

@ -25,6 +25,9 @@ Notes:
#include"filter_model_converter.h"
#include"ast_util.h"
#include"solver2tactic.h"
#include"smt_solver.h"
#include"solver.h"
#include"mus.h"
typedef obj_map<expr, expr *> expr2expr_map;
@ -159,6 +162,8 @@ public:
ref<filter_model_converter> fmc;
if (in->unsat_core_enabled()) {
extract_clauses_and_dependencies(in, clauses, assumptions, bool2dep, fmc);
TRACE("mus", in->display_with_dependencies(tout);
tout << clauses << "\n";);
if (in->proofs_enabled() && !assumptions.empty())
throw tactic_exception("smt tactic does not support simultaneous generation of proofs and unsat cores");
for (unsigned i = 0; i < clauses.size(); ++i) {

1
src/solver/mus.cpp
View file

@ -89,6 +89,7 @@ struct mus::imp {
lbool get_mus1(expr_ref_vector& mus) {
ptr_vector<expr> unknown(m_lit2expr.size(), m_lit2expr.c_ptr());
ptr_vector<expr> core_exprs;
TRACE("mus", m_solver.display(tout););
while (!unknown.empty()) {
IF_VERBOSE(12, verbose_stream() << "(mus reducing core: " << unknown.size() << " new core: " << mus.size() << ")\n";);
TRACE("mus", display_vec(tout << "core: ", unknown); display_vec(tout << "mus: ", mus););

2
src/solver/tactic2solver.cpp
View file

@ -290,3 +290,5 @@ solver_factory * mk_tactic2solver_factory(tactic * t) {
solver_factory * mk_tactic_factory2solver_factory(tactic_factory * f) {
return alloc(tactic_factory2solver_factory, f);
}

5
src/tactic/bv/dt2bv_tactic.cpp
View file

@ -64,7 +64,10 @@ class dt2bv_tactic : public tactic {
return;
}
if (m_t.is_fd(a)) {
if (m_t.is_fd(a) && a->get_num_args() > 0) {
m_t.m_non_fd_sorts.insert(get_sort(a));
}
else if (m_t.is_fd(a)) {
m_t.m_fd_sorts.insert(get_sort(a));
}
else {

2
src/tactic/tactic.cpp
View file

@ -23,7 +23,6 @@ Notes:
#include"model_v2_pp.h"
struct tactic_report::imp {
char const * m_id;
goal const & m_goal;
@ -175,6 +174,7 @@ void exec(tactic & t, goal_ref const & in, goal_ref_buffer & result, model_conve
}
}
lbool check_sat(tactic & t, goal_ref & g, model_ref & md, labels_vec & labels, proof_ref & pr, expr_dependency_ref & core, std::string & reason_unknown) {
bool models_enabled = g->models_enabled();
bool proofs_enabled = g->proofs_enabled();