U11
tt
U'
U
U12
equal
_isNotEqualTo_
U
U'
true
U12
tt
false
U21
tt
B
U'
U22
equal
_isNotEqualTo_
B
true
true
U'
U22
tt
U'
U'
_and_
A
A
A
_and_
A
_xor_
B
C
_xor_
_and_
A
B
_and_
A
C
_and_
false
A
false
_and_
true
A
A
_implies_
A
B
not_
_xor_
A
_and_
A
B
_isEqualTo_
U
U'
U11
tt
U'
U
_isEqualTo_
U
U
true
_isNotEqualTo_
U
U'
if_then_else_fi
_isEqualTo_
U
U'
false
true
_isNotEqualTo_
U
U
false
_or_
A
B
_xor_
_and_
A
B
_xor_
A
B
_xor_
A
A
false
_xor_
false
A
A
and
tt
X
X
equal
X
X
tt
if_then_else_fi
B
U
U'
U21
tt
B
U'
if_then_else_fi
true
U
U'
U
not_
A
_xor_
A
true
not_
false
true
not_
true
false
_or_
_xor_
_and_
_or_
_xor_
_and_
2.2
_and_
x
y
_and_
y
x
_or_
x
_or_
y
z
_or_
_or_
x
y
z
_or_
x
y
_or_
y
x
_and_
x
_and_
y
z
_and_
_and_
x
y
z
_xor_
x
y
_xor_
y
x
_xor_
x
_xor_
y
z
_xor_
_xor_
x
y
z
_or_
x
_or_
y
z
_or_
x
y
_xor_
x
_xor_
y
z
_xor_
x
y
_and_
x
_and_
y
z
_and_
_and_
x
y
z
_xor_
x
y
_xor_
y
x
_xor_
x
_xor_
y
z
_xor_
_xor_
x
y
z
_and_
x
y
_and_
y
x
_or_
x
_or_
y
z
_or_
_or_
x
y
z
_or_
x
y
_or_
y
x
_and_
x
_and_
y
z
_and_
x
y
_and_
A
_xor_
B
C
_xor_
_and_
A
B
_and_
A
C
U11
tt
U'
U
_isNotEqualTo_
U
U'
_implies_
A
B
_xor_
A
_and_
A
B
_or_
A
B
_and_
A
B
_isNotEqualTo_
U
U'
_isEqualTo_
U
U'
U21
tt
B
U'
U22
equal
_isNotEqualTo_
B
true
true
U'
not_
A
_xor_
A
true
_or_
A
B
_xor_
_and_
A
B
_xor_
A
B
_or_
A
B
_xor_
A
B
U21
tt
B
U'
equal
_isNotEqualTo_
B
true
true
if_then_else_fi
B
U
U'
U21
tt
B
U'
_implies_
A
B
_and_
A
B
_isNotEqualTo_
U
U'
if_then_else_fi
_isEqualTo_
U
U'
false
true
_implies_
A
B
not_
_xor_
A
_and_
A
B
U11
tt
U'
U
equal
_isNotEqualTo_
U
U'
true
U11
tt
U'
U
U12
equal
_isNotEqualTo_
U
U'
true
U21
tt
B
U'
_isNotEqualTo_
B
true
_isEqualTo_
U
U'
U11
tt
U'
U
_and_
A
_xor_
B
C
_and_
A
B
_and_
A
_xor_
B
C
_and_
A
C
_and_
_and_
A
_xor_
B
C
_1
_and_
_xor_
_and_
A
B
_and_
A
C
_1
_or_
_or_
A
B
_1
_or_
_xor_
_and_
A
B
_xor_
A
B
_1
_and_
_and_
false
A
_1
_and_
false
_1
_and_
_and_
A
A
_1
_and_
A
_1
_xor_
_xor_
false
A
_1
_xor_
A
_1
_and_
_and_
true
A
_1
_and_
A
_1
_xor_
_xor_
A
A
_1
_xor_
false
_1
_or_
x
y
_or_
y
x
_or_
x
_or_
y
z
_or_
_or_
x
y
z
_or_
x
_or_
y
z
_or_
x
y
true
_or_
A
B
_xor_
_and_
A
B
_xor_
A
B
false
_or_
A
B
_xor_
A
B
false
_or_
A
B
_and_
A
B
false
_implies_
A
B
_xor_
A
_and_
A
B
false
_implies_
A
B
not_
_xor_
A
_and_
A
B
false
not_
A
_xor_
A
true
false
_implies_
A
B
_and_
A
B
false
_and_
x
_and_
y
z
_and_
x
y
_and_
A
_xor_
B
C
_and_
A
C
_and_
x
y
_and_
y
x
_and_
A
_xor_
B
C
_and_
A
B
_and_
x
_and_
y
z
_and_
_and_
x
y
z
true
U11
3
3
U21
3
0
2
3
_and_
2
2
1
2
_isNotEqualTo_
2
0
1
2
not_
1
0
_and_
2
2
1
2
equal
2
0
1
2
and
2
0
1
2
_or_
2
0
false
0
0
U12
1
0
true
0
0
_implies_
2
0
1
2
_implies_
2
0
1
2
U12
1
0
_isNotEqualTo_
2
0
1
2
_xor_
2
1
_xor_
2
1
1
2
if_then_else_fi
3
0
3
2
1
not_
1
0
U11
3
0
3
2
1
_isEqualTo_
2
0
1
2
equal
2
0
1
2
U21
3
0
3
2
1
U22
2
0
1
2
tt
0
0
_or_
2
0
U22
2
0
1
2
_isEqualTo_
2
0
1
2
and
2
0
1
2
if_then_else_fi
3
0
3
2
1
U21
3
2
0
3
0
0
_and_
2
1
0
2
0
0
_isNotEqualTo_
2
1
0
2
0
0
not_
1
0
_and_
2
1
0
2
0
0
equal
2
1
0
2
0
0
and
2
1
0
2
0
0
_or_
2
0
false
0
0
U12
1
0
true
0
0
_implies_
2
1
0
2
0
0
_implies_
2
1
0
2
0
0
U12
1
0
_isNotEqualTo_
2
1
0
2
0
0
_xor_
2
0
_xor_
2
1
0
2
0
0
if_then_else_fi
3
1
0
2
0
3
0
0
not_
1
0
U11
3
1
0
2
0
3
0
0
_isEqualTo_
2
1
0
2
0
0
equal
2
1
0
2
0
0
U21
3
1
0
2
0
3
0
0
U22
2
1
0
2
0
0
tt
0
0
_or_
2
0
U22
2
1
0
2
0
0
_isEqualTo_
2
1
0
2
0
0
and
2
1
0
2
0
0
if_then_else_fi
3
1
0
2
0
3
0
0
_and_
A
_xor_
B
C
_and_
A
B
_and_
A
_xor_
B
C
_and_
A
C
_and_
x
_and_
y
z
_and_
x
y
_xor_
A
A
false
_and_
true
A
A
_xor_
false
A
A
_xor_
x
_xor_
y
z
_xor_
_xor_
x
y
z
_xor_
x
y
_xor_
y
x
_and_
x
_and_
y
z
_and_
_and_
x
y
z
_and_
A
A
A
_and_
false
A
false
_and_
A
_xor_
B
C
_xor_
_and_
A
B
_and_
A
C
_and_
x
y
_and_
y
x
_and_
x
_and_
y
z
_and_
_and_
x
y
z
_and_
x
y
_and_
y
x
true
_and_
A
_xor_
B
C
_xor_
_and_
A
B
_and_
A
C
false
_xor_
x
_xor_
y
z
_xor_
_xor_
x
y
z
_xor_
x
y
_xor_
y
x
_xor_
x
_xor_
y
z
_xor_
x
y
true
_isEqualTo_
U
U'
U11
tt
U'
U
U21
tt
B
U'
_isNotEqualTo_
B
true
_isNotEqualTo_
U
U'
_isEqualTo_
U
U'
_isNotEqualTo_
U
U'
if_then_else_fi
_isEqualTo_
U
U'
false
true
U11
tt
U'
U
_isNotEqualTo_
U
U'
if_then_else_fi
B
U
U'
U21
tt
B
U'
true
Failed!
NaTT
certifiable-1.6