p
p
b
a
x0
x1
p
x2
x3
p
p
b
x2
a
a
b
x1
p
x3
x0
2.2
p
p
b
a
x0
x1
p
x2
x3
p
b
x2
a
a
b
x1
p
p
b
a
x0
x1
p
x2
x3
p
x3
x0
p
p
b
a
x0
x1
p
x2
x3
p
p
b
x2
a
a
b
x1
p
x3
x0
true
p
p
b
a
x0
x1
p
x2
x3
p
p
b
x2
a
a
b
x1
p
x3
x0
p
p
b
a
x0
x1
p
x2
x3
p
x3
x0
true
a
1
1
0
b
1
1
0
p
2
1
2
0
p
2
1
2
20653
p
p
b
a
x0
x1
p
x2
x3
p
p
b
x2
a
a
b
x1
p
x3
x0
p
p
b
a
x0
x1
p
x2
x3
p
p
b
x2
a
a
b
x1
p
x3
x0
p
p
b
a
x0
x1
p
x2
x3
p
p
b
x2
a
a
b
x1
p
x3
x0
true
Failed!
NaTT
certifiable-1.6