def test_bitvecfunc_ext_unequal_nested_comparison_f():
# Arrange
s = Solver()
input1 = symbol_factory.BitVecSym("input1", 256)
input2 = symbol_factory.BitVecSym("input2", 256)
input3 = symbol_factory.BitVecSym("input3", 256)
input4 = symbol_factory.BitVecSym("input4", 256)
bvf1 = symbol_factory.BitVecFuncSym("bvf1", "sha3", 256, input_=input1)
bvf2 = symbol_factory.BitVecFuncSym("bvf2",
"sha3",
256,
input_=bvf1 + input3)
bvf3 = symbol_factory.BitVecFuncSym("bvf3", "sha3", 256, input_=input2)
bvf4 = symbol_factory.BitVecFuncSym("bvf4",
"sha3",
256,
input_=bvf3 + input4)
# Act
s.add(input1 != input2)
s.add(input3 == input4)
s.add(bvf2 == bvf4)
# Assert
assert s.check() == z3.unsat
def test_bitvecfunc_bitvecfunc_comparison(operation, expected):
# Arrange
s = Solver()
input1 = symbol_factory.BitVecSym("input1", 256)
input2 = symbol_factory.BitVecSym("input2", 256)
bvf1 = symbol_factory.BitVecFuncSym("bvf1", "sha3", 256, input_=input1)
bvf2 = symbol_factory.BitVecFuncSym("bvf2", "sha3", 256, input_=input2)
# Act
s.add(operation(bvf1, bvf2))
s.add(input1 == input2)
# Assert
assert s.check() == expected
def test_bitvecfunc_find_input():
# Arrange
s = Solver()
input1 = symbol_factory.BitVecSym("input1", 256)
input2 = symbol_factory.BitVecSym("input2", 256)
bvf1 = symbol_factory.BitVecFuncSym("bvf1", "sha3", 256, input_=input1)
bvf2 = symbol_factory.BitVecFuncSym("bvf3", "sha3", 256, input_=input2)
# Act
s.add(input1 == symbol_factory.BitVecVal(1, 256))
s.add(bvf1 == bvf2)
# Assert
assert s.check() == z3.sat
assert s.model()[input2.raw] == 1
def test_bitvecfunc_nested_comparison():
# arrange
s = Solver()
input1 = symbol_factory.BitVecSym("input1", 256)
input2 = symbol_factory.BitVecSym("input2", 256)
bvf1 = symbol_factory.BitVecFuncSym("bvf1", "sha3", 256, input_=input1)
bvf2 = symbol_factory.BitVecFuncSym("bvf2", "sha3", 256, input_=bvf1)
bvf3 = symbol_factory.BitVecFuncSym("bvf3", "sha3", 256, input_=input2)
bvf4 = symbol_factory.BitVecFuncSym("bvf4", "sha3", 256, input_=bvf3)
# Act
s.add(input1 == input2)
s.add(bvf2 == bvf4)
# Assert
assert s.check() == z3.sat
def test_bitvecfunc_arithmetic(operation, expected):
# Arrange
s = Solver()
input_ = symbol_factory.BitVecVal(1, 8)
bvf = symbol_factory.BitVecFuncSym("bvf", "sha3", 256, input_=input_)
x = symbol_factory.BitVecSym("x", 256)
y = symbol_factory.BitVecSym("y", 256)
# Act
s.add(x != y)
s.add(operation(bvf, x) == operation(y, bvf))
# Assert
assert s.check() == expected
def test_bitvecfunc_bitvecfuncval_comparison():
# Arrange
s = Solver()
input1 = symbol_factory.BitVecSym("input1", 256)
input2 = symbol_factory.BitVecVal(1337, 256)
bvf1 = symbol_factory.BitVecFuncSym("bvf1", "sha3", 256, input_=input1)
bvf2 = symbol_factory.BitVecFuncVal(12345678910,
"sha3",
256,
input_=input2)
# Act
s.add(bvf1 == bvf2)
# Assert
assert s.check() == z3.sat
assert s.model().eval(input2.raw) == 1337