When using the assertion assert(S101), changing from x > 0 to x <= 0 can be confusing because these statements might have different meanings.

x <= 0 checks if x is less than or equal to zero, while x > 0 checks if x is greater than zero.

For example, if x is -1, then x <= 0 is true, but x > 0 is false. On the other hand, if x is 1, then x <= 0 is false, but x > 0 is true.