def _create_nondet_method(self, method_name, method_type, param_types):
if not (method_type == 'void' or self.is_supported_type(method_type)):
logging.warning('Crest can\'t handle symbolic values of type %s',
method_type)
internal_type = 'unsigned long long'
logging.warning('Continuing with type %s for method %s',
internal_type, method_name)
elif method_type == '_Bool':
internal_type = 'char'
else:
internal_type = method_type
var_name = utils.get_sym_var_name(method_name)
marker_method_call = 'CREST_' + '_'.join(internal_type.split())
method_head = utils.get_method_head(method_name, method_type,
param_types)
method_body = ['{']
if method_type != 'void':
method_body += [
'{0} {1};'.format(internal_type, var_name), '{0}({1});'.format(
marker_method_call, var_name)
]
if method_type == internal_type:
method_body.append('return {0};'.format(var_name))
else:
method_body.append('return ({0}) {1};'.format(
method_type, var_name))
method_body = '\n '.join(method_body)
method_body += '\n}\n'
return method_head + method_body
def _get_nondet_method_definition(method_name, method_type, param_types):
var_name = utils.get_sym_var_name(method_name)
method_head = utils.get_method_head(method_name, method_type,
param_types)
method_body = ['{']
if method_type != 'void':
method_body += [
'{0} {1};'.format(method_type, var_name),
'input(&{0}, sizeof({0}), \"{0}\");'.format(var_name),
'return {0};'.format(var_name)
]
method_body = '\n '.join(method_body)
method_body += '\n}\n'
return method_head + method_body
def _create_nondet_method(self, method_name, method_type, param_types):
var_name = utils.get_sym_var_name(method_name)
method_head = utils.get_method_head(method_name, method_type,
param_types)
method_body = ['{']
if method_type != 'void':
method_body += [
'{0} {1};'.format(method_type, var_name),
'klee_make_symbolic(&{0}, sizeof({0}), \"{0}\");'.format(
var_name), 'return {0};'.format(var_name)
]
method_body = '\n '.join(method_body)
method_body += '\n}\n'
return method_head + method_body
def _create_nondet_method(self, method_name, method_type, param_types):
var_name = utils.get_sym_var_name(method_name)
method_head = utils.get_method_head(method_name, method_type,
param_types)
method_body = ['{']
if method_type != 'void':
if 'float' in method_type or 'double' in method_type:
conversion_cmd = 'strtold({0}, 0);'.format(var_name)
elif 'unsigned' in method_type and 'long long' in method_type:
conversion_cmd = 'strtoull({0}, 0, 10);'.format(var_name)
else:
conversion_cmd = 'strtoll({0}, 0, 10);'.format(var_name)
return_statement = 'return ({0}) {1}'.format(
method_type, conversion_cmd)
method_body += [
'char * {0} = malloc(1000);'.format(var_name),
'fgets({0}, 1000, stdin);'.format(var_name), return_statement
]
method_body = '\n '.join(method_body)
method_body += '\n}\n'
return method_head + method_body