(GOAL COMPLEXITY)
(STARTTERM CONSTRUCTORBASED)
(VAR x y )
(STRATEGY INNERMOST)
(RULES 
        minus(s(x), y) -> if(gt(s(x), y), x, y)
        if(true, x, y) -> s(minus(x, y))
        if(false, x, y) -> 0
        gcd(x, y) -> if1(ge(x, y), x, y)
        if1(true, x, y) -> if2(gt(y, 0), x, y)
        if1(false, x, y) -> gcd(y, x)
        if2(true, x, y) -> gcd(minus(x, y), y)
        if2(false, x, y) -> x
        gt(0, y) -> false
        gt(s(x), 0) -> true
        gt(s(x), s(y)) -> gt(x, y)
        ge(x, 0) -> true
        ge(0, s(x)) -> false
        ge(s(x), s(y)) -> ge(x, y)
        
)