def test_lt_etc(self):
str_symb = claripy.StringS("Symb_2", 4)
solver = self.get_solver()
c1 = claripy.StrLen(str_symb, 32) <= 4
c2 = claripy.StrLen(str_symb, 32) < 4
c3 = claripy.StrLen(str_symb, 32) >= 4
c4 = claripy.StrLen(str_symb, 32) > 4
solver.add(c1)
solver.add(c2)
solver.add(c3)
solver.add(c4)
self.assertFalse(solver.satisfiable())
def test_length_simplification(self):
str_concrete = claripy.StringV("concrete")
solver = self.get_solver()
solver.add(claripy.StrLen(str_concrete, 32) == 8)
self.assertTrue(solver.satisfiable())
result = solver.eval(str_concrete, 2)
self.assertEqual(['concrete'], list(result))
for r in result:
self.assertTrue(len(r) == 8)
def test_length(self):
str_symb = claripy.StringS("symb_length", 12, explicit_name=True)
solver = self.get_solver()
# TODO: How do we want to deal with the size of a symbolic string?
solver.add(claripy.StrLen(str_symb, 32) == 14)
self.assertTrue(solver.satisfiable())
result = solver.eval(str_symb, 4 if KEEP_TEST_PERFORMANT else 100)
for r in result:
self.assertTrue(len(r) == 14)
def test_length_simplification(self):
correct_script = '''(set-logic ALL)
(check-sat)
'''
str_concrete = claripy.StringV("concrete")
solver = self.get_solver()
solver.add(claripy.StrLen(str_concrete, 32) == 8)
script = solver.get_smtlib_script_satisfiability()
self.assertEqual(correct_script, script)
def test_lt_etc(self):
correct_script = '''(set-logic ALL)
(declare-fun {0}Symb_lt_test () String)
(assert (let ((.def_0 (<= (str.len {0}Symb_lt_test) 4))) .def_0))
(assert (let ((.def_0 (< (str.len {0}Symb_lt_test) 4))) .def_0))
(assert (let ((.def_0 (<= 4 (str.len {0}Symb_lt_test)))) .def_0))
(assert (let ((.def_0 (< 4 (str.len {0}Symb_lt_test)))) .def_0))
(check-sat)
'''.format(String.STRING_TYPE_IDENTIFIER)
str_symb = claripy.StringS("Symb_lt_test", 4, explicit_name=True)
solver = self.get_solver()
c1 = claripy.StrLen(str_symb, 32) <= 4
c2 = claripy.StrLen(str_symb, 32) < 4
c3 = claripy.StrLen(str_symb, 32) >= 4
c4 = claripy.StrLen(str_symb, 32) > 4
solver.add(c1)
solver.add(c2)
solver.add(c3)
solver.add(c4)
script = solver.get_smtlib_script_satisfiability()
# with open("dump_lt_etc.smt2", "w") as dump_f:
# dump_f.write(script)
self.assertEqual(correct_script, script)
def test_length(self):
correct_script = '''(set-logic ALL)
(declare-fun {0}symb_length () String)
(assert (let ((.def_0 (= (str.len {0}symb_length) 14))) .def_0))
(check-sat)
'''.format(String.STRING_TYPE_IDENTIFIER)
str_symb = claripy.StringS("symb_length", 12, explicit_name=True)
solver = self.get_solver()
# TODO: How do we want to dela with the size of a symbolic string?
solver.add(claripy.StrLen(str_symb, 32) == 14)
script = solver.get_smtlib_script_satisfiability()
# with open("dump_length.smt2", "w") as dump_f:
# dump_f.write(script)
self.assertEqual(correct_script, script)
def run(self, this_str):
log.debug(
'Called SimProcedure java.lang.String.length with args: {}'.format(
this_str))
return claripy.StrLen(self.state.memory.load(this_str), 32)
