Fixed test for MvS with new size of datatype

state/test/test_read_value.py

@@ -36,7 +36,7 @@ class TestReadValue(unittest.TestCase):
 
     def test_read_value_integer_ib_positive(self):
         # Just within range
-        for i in range(2**64-10, 2**64):
+        for i in range(2**63-10, 2**63):
             id1 = self.mvs.create_nodevalue(i)
             assert id1 != None