def configure_environment(config_filename, environment):
"""
Reads a configuration file from the given path and configures the
given environment accordingly.
"""
factory = environment.factory
if not os.path.exists(config_filename):
raise IOError("File '%s' does not exists." % config_filename)
# We do not use variable inside the config file
config = cp.RawConfigParser()
config.read(config_filename)
new_solvers_sections = [
s for s in config.sections() if s.lower().startswith("smtlibsolver ")
]
for s in new_solvers_sections:
name = s[len("smtlibsolver "):]
cmd = config.get(s, "command")
assert cmd is not None, ("Missing 'command' value in definition"
"of '%s' solver" % name)
logics_string = config.get(s, "logics")
if logics_string is None:
warn("Missing 'logics' value in definition of '%s' solver" % name)
continue
logics = [get_logic_by_name(l) for l in logics_string.split()]
factory.add_generic_solver(name, cmd.split(), logics)
if "global" in config.sections():
infix = config.get("global", "use_infix_notation")
pref_list = config.get("global", "solver_preference_list")
if infix is not None:
if infix.lower() == "true":
environment.enable_infix_notation = True
elif infix.lower() == "false":
environment.enable_infix_notation = True
else:
warn("Unknown value for 'use_infix_notation': %s" % infix)
if pref_list != None:
prefs = pref_list.split()
for s in prefs:
if s not in factory.all_solvers():
warn("Unknown solver '%s' in solver_preference_list" % s)
for s in factory.all_solvers():
if s not in prefs:
warn("Solver '%s' is not in the preference list, "\
"and will be disabled." % s)
factory.set_solver_preference_list(prefs)
def configure_environment(config_filename, environment):
"""
Reads a configuration file from the given path and configures the
given environment accordingly.
"""
factory = environment.factory
if not os.path.exists(config_filename):
raise IOError("File '%s' does not exists." % config_filename)
# We do not use variable inside the config file
config = cp.RawConfigParser()
config.read(config_filename)
new_solvers_sections = [s for s in config.sections()
if s.lower().startswith("smtlibsolver ")]
for s in new_solvers_sections:
name = s[len("smtlibsolver "):]
cmd = config.get(s, "command")
assert cmd is not None, ("Missing 'command' value in definition"
"of '%s' solver" % name)
logics_string = config.get(s, "logics")
if logics_string is None:
warn("Missing 'logics' value in definition of '%s' solver" % name)
continue
logics = [get_logic_by_name(l) for l in logics_string.split()]
factory.add_generic_solver(name, cmd.split(), logics)
if "global" in config.sections():
infix = config.get("global", "use_infix_notation")
pref_list = config.get("global", "solver_preference_list")
if infix is not None:
if infix.lower() == "true":
environment.enable_infix_notation = True
elif infix.lower() == "false":
environment.enable_infix_notation = True
else:
warn("Unknown value for 'use_infix_notation': %s" % infix)
if pref_list is not None:
prefs = pref_list.split()
for s in prefs:
if s not in factory.all_solvers():
warn("Unknown solver '%s' in solver_preference_list" % s)
for s in factory.all_solvers():
if s not in prefs:
warn("Solver '%s' is not in the preference list, "\
"and will be disabled." % s)
factory.set_solver_preference_list(prefs)
def _cmd_set_logic(self, current, tokens):
elements = self.parse_atoms(tokens, current, 1)
name = elements[0]
try:
self.logic = get_logic_by_name(name)
return SmtLibCommand(current, [self.logic])
except UndefinedLogicError:
warn("Unknown logic '" + name + "'. Ignoring set-logic command.")
return SmtLibCommand(current, [None])
def _cmd_set_logic(self, current, tokens):
elements = self.parse_atoms(tokens, current, 1)
name = elements[0]
try:
self.logic = get_logic_by_name(name)
return SmtLibCommand(current, [self.logic])
except UndefinedLogicError:
warn("Unknown logic '" + name + \
"'. Ignoring set-logic command.")
return SmtLibCommand(current, [None])
def test_get_logic_by_name_error(self):
with self.assertRaises(UndefinedLogicError):
get_logic_by_name("SuperLogic")
def test_get_logic_by_name(self):
for l in pysmt.logics.LOGICS:
l_out = get_logic_by_name(l.name)
self.assertEqual(l_out, l,
"Expecting %s, got %s instead" % \
(l, l_out))
def test_get_logic_by_name_error(self):
with self.assertRaises(UndefinedLogicError):
get_logic_by_name("SuperLogic")
def test_get_logic_by_name(self):
for l in pysmt.logics.LOGICS:
l_out = get_logic_by_name(l.name)
self.assertEqual(l_out, l,
"Expecting %s, got %s instead" % \
(l, l_out))
def get_command(self, tokens):
"""Builds an SmtLibCommand instance out of a parsed term."""
while True:
self.consume_opening(tokens, "<main>")
current = next(tokens)
if current in [smtcmd.SET_INFO, smtcmd.SET_OPTION]:
elements = self.parse_atoms(tokens, current, 2)
yield SmtLibCommand(current, elements)
elif current == smtcmd.ASSERT:
expr = self.get_expression(tokens)
self.consume_closing(tokens, current)
yield SmtLibCommand(current, [expr])
elif current == smtcmd.CHECK_SAT:
self.parse_atoms(tokens, current, 0)
yield SmtLibCommand(current, [])
elif current == smtcmd.PUSH:
elements = self.parse_atoms(tokens, current, 0, 1)
levels = 1
if len(elements) > 0:
levels = int(elements[0])
yield SmtLibCommand(current, [levels])
elif current == smtcmd.POP:
elements = self.parse_atoms(tokens, current, 0, 1)
levels = 1
if len(elements) > 0:
levels = int(elements[0])
yield SmtLibCommand(current, [levels])
elif current == smtcmd.EXIT:
self.parse_atoms(tokens, current, 0)
yield SmtLibCommand(current, [])
elif current == smtcmd.SET_LOGIC:
elements = self.parse_atoms(tokens, current, 1)
name = elements[0]
try:
self.logic = get_logic_by_name(name)
yield SmtLibCommand(current, [self.logic])
except UndefinedLogicError:
warn("Unknown logic '" + name + "'. Ignoring set-logic command.")
yield SmtLibCommand(current, [None])
elif current == smtcmd.DECLARE_CONST:
elements = self.parse_atoms(tokens, current, 2)
(var, typename) = elements
v = self._get_var(var, typename)
self.cache.bind(var, v)
yield SmtLibCommand(current, [v])
elif current == smtcmd.GET_VALUE:
params = self.parse_expr_list(tokens, current)
self.consume_closing(tokens, current)
yield SmtLibCommand(current, params)
elif current == smtcmd.DECLARE_FUN:
var = self.parse_atom(tokens, current)
params = self.parse_params(tokens, current)
typename = self.parse_type(tokens, current)
self.consume_closing(tokens, current)
v = self._get_var(var, typename, params)
if v.symbol_type().is_function_type():
self.cache.bind(var, functools.partial(self._function_call_helper, v))
else:
self.cache.bind(var, v)
yield SmtLibCommand(current, [v])
elif current == smtcmd.DEFINE_FUN:
var = self.parse_atom(tokens, current)
params = self.parse_params(tokens, current)
self.parse_type(tokens, current)
ebody = self.get_expression(tokens)
self.consume_closing(tokens, current)
formal = []
for k in params:
(x, t) = k[0], k[1]
v = self._get_var(x, t)
self.cache.bind(x, v)
formal.append(v)
for x in formal:
self.cache.unbind(x.symbol_name())
self.cache.define(var, formal, ebody)
yield SmtLibCommand(current, [var, formal, ebody])
else:
raise UnknownSmtLibCommandError(current)
def get_command(self, tokens):
"""Builds an SmtLibCommand instance out of a parsed term."""
while True:
self.consume_opening(tokens, "<main>")
current = next(tokens)
if current in [smtcmd.SET_INFO, smtcmd.SET_OPTION]:
elements = self.parse_atoms(tokens, current, 2)
yield SmtLibCommand(current, elements)
elif current == smtcmd.ASSERT:
expr = self.get_expression(tokens)
self.consume_closing(tokens, current)
yield SmtLibCommand(current, [expr])
elif current == smtcmd.CHECK_SAT:
self.parse_atoms(tokens, current, 0)
yield SmtLibCommand(current, [])
elif current == smtcmd.PUSH:
elements = self.parse_atoms(tokens, current, 0, 1)
levels = 1
if len(elements) > 0:
levels = int(elements[0])
yield SmtLibCommand(current, [levels])
elif current == smtcmd.POP:
elements = self.parse_atoms(tokens, current, 0, 1)
levels = 1
if len(elements) > 0:
levels = int(elements[0])
yield SmtLibCommand(current, [levels])
elif current == smtcmd.EXIT:
self.parse_atoms(tokens, current, 0)
yield SmtLibCommand(current, [])
elif current == smtcmd.SET_LOGIC:
elements = self.parse_atoms(tokens, current, 1)
name = elements[0]
try:
self.logic = get_logic_by_name(name)
yield SmtLibCommand(current, [self.logic])
except UndefinedLogicError:
warn("Unknown logic '" + name + \
"'. Ignoring set-logic command.")
yield SmtLibCommand(current, [None])
elif current == smtcmd.DECLARE_CONST:
elements = self.parse_atoms(tokens, current, 2)
(var, typename) = elements
v = self._get_var(var, typename)
self.cache.bind(var, v)
yield SmtLibCommand(current, [v])
elif current == smtcmd.GET_VALUE:
params = self.parse_expr_list(tokens, current)
self.consume_closing(tokens, current)
yield SmtLibCommand(current, params)
elif current == smtcmd.DECLARE_FUN:
var = self.parse_atom(tokens, current)
params = self.parse_params(tokens, current)
typename = self.parse_atom(tokens, current)
self.consume_closing(tokens, current)
v = self._get_var(var, typename, params)
if v.symbol_type().is_function_type():
self.cache.bind(var, \
functools.partial(self._function_call_helper, v))
else:
self.cache.bind(var, v)
yield SmtLibCommand(current, [v])
elif current == smtcmd.DEFINE_FUN:
var = self.parse_atom(tokens, current)
params = self.parse_params(tokens, current)
typename = self.parse_atom(tokens, current)
ebody = self.get_expression(tokens)
self.consume_closing(tokens, current)
formal = []
for k in params:
(x, t) = k[0], k[1]
v = self._get_var(x, t)
self.cache.bind(x, v)
formal.append(v)
for x in formal:
self.cache.unbind(x.symbol_name())
self.cache.define(var, formal, ebody)
yield SmtLibCommand(current, [var, formal, ebody])
else:
raise UnknownSmtLibCommandError(current)