p
0
0
p
s
X
X
leq
0
Y
true
leq
s
X
0
false
leq
s
X
s
Y
leq
X
Y
if
true
X
Y
activate
X
if
false
X
Y
activate
Y
diff
X
Y
if
leq
X
Y
n__0
n__s
diff
p
X
Y
0
n__0
s
X
n__s
X
activate
n__0
0
activate
n__s
X
s
X
activate
X
X
2.2
activate
n__0
0
diff
X
Y
if
leq
X
Y
n__0
n__s
diff
p
X
Y
diff
X
Y
p
X
diff
X
Y
leq
X
Y
leq
s
X
s
Y
leq
X
Y
activate
n__s
X
s
X
if
true
X
Y
activate
X
diff
X
Y
diff
p
X
Y
if
false
X
Y
activate
Y
true
diff
X
Y
diff
p
X
Y
true
Failed!
NaTT
certifiable-1.6