def test_top(self):
e = PyEnvironment([PyVar('x0'), PyVar('y')], [PyVar('z')])
man: PyManager = PyBoxDManager()
self.assertFalse(PyBox.bottom(man, e).is_top())
b1 = PyBox(man,
e,
variables=[PyVar('x0')],
intervals=[PyDoubleInterval(-2.5, 2.5)])
self.assertFalse(b1.is_bottom())
b2 = PyBox(man,
e,
variables=[PyVar('y')],
intervals=[PyMPQInterval(-5, 5, 2, 2)])
self.assertFalse(b2.is_bottom())
b3 = PyBox(man,
e,
variables=[PyVar('z')],
intervals=[PyMPFRInterval(-2.5, 2.5)])
self.assertFalse(b3.is_bottom())
self.assertTrue(PyBox.top(man, e).is_top())
def test_meet(self):
e = PyEnvironment([PyVar('x0'), PyVar('y')], [PyVar('z')])
man: PyManager = PyBoxDManager()
b0 = PyBox.bottom(man, e)
b1d = PyBox(man,
e,
variables=[PyVar('x0')],
intervals=[PyDoubleInterval(-2.5, 0.0)])
b1q = PyBox(man,
e,
variables=[PyVar('x0')],
intervals=[PyMPQInterval(-5, 0, 2, 1)])
b1f = PyBox(man,
e,
variables=[PyVar('x0')],
intervals=[PyMPFRInterval(-2.5, 0.0)])
b2d = PyBox(man,
e,
variables=[PyVar('x0')],
intervals=[PyDoubleInterval(0.0, 2.5)])
b2q = PyBox(man,
e,
variables=[PyVar('x0')],
intervals=[PyMPQInterval(0, 5, 1, 2)])
b2f = PyBox(man,
e,
variables=[PyVar('x0')],
intervals=[PyMPFRInterval(0.0, 2.5)])
b3d = PyBox(man,
e,
variables=[PyVar('x0')],
intervals=[PyDoubleInterval(0.0, 0.0)])
b3q = PyBox(man,
e,
variables=[PyVar('x0')],
intervals=[PyMPQInterval(0, 0, 1, 1)])
b3f = PyBox(man,
e,
variables=[PyVar('x0')],
intervals=[PyMPFRInterval(0.0, 0.0)])
b4 = PyBox.top(man, e)
self.assertTrue(b0.meet(b1d) == b0)
self.assertTrue(b0.meet(b1q) == b0)
self.assertTrue(b0.meet(b1f) == b0)
self.assertTrue(b0.meet(b2d) == b0)
self.assertTrue(b0.meet(b2q) == b0)
self.assertTrue(b0.meet(b2f) == b0)
self.assertTrue(b0.meet(b3d) == b0)
self.assertTrue(b0.meet(b3q) == b0)
self.assertTrue(b0.meet(b3f) == b0)
self.assertTrue(b1d.meet(b2d) == b3d)
self.assertTrue(b1d.meet(b3d) == b3d)
self.assertTrue(b2d.meet(b3d) == b3d)
self.assertTrue(b1q.meet(b2q) == b3q)
self.assertTrue(b1q.meet(b3q) == b3q)
self.assertTrue(b2q.meet(b3q) == b3q)
self.assertTrue(b1f.meet(b2f) == b3f)
self.assertTrue(b1f.meet(b3f) == b3f)
self.assertTrue(b2f.meet(b3f) == b3f)
self.assertTrue(b1d.meet(b4) == b1d)
self.assertTrue(b1q.meet(b4) == b1q)
self.assertTrue(b1f.meet(b4) == b1f)
self.assertTrue(b2d.meet(b4) == b2d)
self.assertTrue(b2q.meet(b4) == b2q)
self.assertTrue(b2f.meet(b4) == b2f)
self.assertTrue(b3d.meet(b4) == b3d)
self.assertTrue(b3q.meet(b4) == b3q)
self.assertTrue(b3f.meet(b4) == b3f)