Termination w.r.t. Q of the following Term Rewriting System could not be shown:
Q restricted rewrite system:
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(m)) -> false
eq2(s1(n), 0) -> false
eq2(s1(n), s1(m)) -> eq2(n, m)
le2(0, m) -> true
le2(s1(n), 0) -> false
le2(s1(n), s1(m)) -> le2(n, m)
min1(cons2(0, nil)) -> 0
min1(cons2(s1(n), nil)) -> s1(n)
min1(cons2(n, cons2(m, x))) -> if_min2(le2(n, m), cons2(n, cons2(m, x)))
if_min2(true, cons2(n, cons2(m, x))) -> min1(cons2(n, x))
if_min2(false, cons2(n, cons2(m, x))) -> min1(cons2(m, x))
replace3(n, m, nil) -> nil
replace3(n, m, cons2(k, x)) -> if_replace4(eq2(n, k), n, m, cons2(k, x))
if_replace4(true, n, m, cons2(k, x)) -> cons2(m, x)
if_replace4(false, n, m, cons2(k, x)) -> cons2(k, replace3(n, m, x))
sort1(nil) -> nil
sort1(cons2(n, x)) -> cons2(min1(cons2(n, x)), sort1(replace3(min1(cons2(n, x)), n, x)))
Q is empty.
↳ QTRS
↳ Non-Overlap Check
Q restricted rewrite system:
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(m)) -> false
eq2(s1(n), 0) -> false
eq2(s1(n), s1(m)) -> eq2(n, m)
le2(0, m) -> true
le2(s1(n), 0) -> false
le2(s1(n), s1(m)) -> le2(n, m)
min1(cons2(0, nil)) -> 0
min1(cons2(s1(n), nil)) -> s1(n)
min1(cons2(n, cons2(m, x))) -> if_min2(le2(n, m), cons2(n, cons2(m, x)))
if_min2(true, cons2(n, cons2(m, x))) -> min1(cons2(n, x))
if_min2(false, cons2(n, cons2(m, x))) -> min1(cons2(m, x))
replace3(n, m, nil) -> nil
replace3(n, m, cons2(k, x)) -> if_replace4(eq2(n, k), n, m, cons2(k, x))
if_replace4(true, n, m, cons2(k, x)) -> cons2(m, x)
if_replace4(false, n, m, cons2(k, x)) -> cons2(k, replace3(n, m, x))
sort1(nil) -> nil
sort1(cons2(n, x)) -> cons2(min1(cons2(n, x)), sort1(replace3(min1(cons2(n, x)), n, x)))
Q is empty.
The TRS is non-overlapping. Hence, we can switch to innermost.
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
Q restricted rewrite system:
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(m)) -> false
eq2(s1(n), 0) -> false
eq2(s1(n), s1(m)) -> eq2(n, m)
le2(0, m) -> true
le2(s1(n), 0) -> false
le2(s1(n), s1(m)) -> le2(n, m)
min1(cons2(0, nil)) -> 0
min1(cons2(s1(n), nil)) -> s1(n)
min1(cons2(n, cons2(m, x))) -> if_min2(le2(n, m), cons2(n, cons2(m, x)))
if_min2(true, cons2(n, cons2(m, x))) -> min1(cons2(n, x))
if_min2(false, cons2(n, cons2(m, x))) -> min1(cons2(m, x))
replace3(n, m, nil) -> nil
replace3(n, m, cons2(k, x)) -> if_replace4(eq2(n, k), n, m, cons2(k, x))
if_replace4(true, n, m, cons2(k, x)) -> cons2(m, x)
if_replace4(false, n, m, cons2(k, x)) -> cons2(k, replace3(n, m, x))
sort1(nil) -> nil
sort1(cons2(n, x)) -> cons2(min1(cons2(n, x)), sort1(replace3(min1(cons2(n, x)), n, x)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
le2(0, x0)
le2(s1(x0), 0)
le2(s1(x0), s1(x1))
min1(cons2(0, nil))
min1(cons2(s1(x0), nil))
min1(cons2(x0, cons2(x1, x2)))
if_min2(true, cons2(x0, cons2(x1, x2)))
if_min2(false, cons2(x0, cons2(x1, x2)))
replace3(x0, x1, nil)
replace3(x0, x1, cons2(x2, x3))
if_replace4(true, x0, x1, cons2(x2, x3))
if_replace4(false, x0, x1, cons2(x2, x3))
sort1(nil)
sort1(cons2(x0, x1))
Q DP problem:
The TRS P consists of the following rules:
REPLACE3(n, m, cons2(k, x)) -> IF_REPLACE4(eq2(n, k), n, m, cons2(k, x))
EQ2(s1(n), s1(m)) -> EQ2(n, m)
SORT1(cons2(n, x)) -> REPLACE3(min1(cons2(n, x)), n, x)
MIN1(cons2(n, cons2(m, x))) -> LE2(n, m)
LE2(s1(n), s1(m)) -> LE2(n, m)
SORT1(cons2(n, x)) -> MIN1(cons2(n, x))
REPLACE3(n, m, cons2(k, x)) -> EQ2(n, k)
SORT1(cons2(n, x)) -> SORT1(replace3(min1(cons2(n, x)), n, x))
IF_MIN2(true, cons2(n, cons2(m, x))) -> MIN1(cons2(n, x))
MIN1(cons2(n, cons2(m, x))) -> IF_MIN2(le2(n, m), cons2(n, cons2(m, x)))
IF_MIN2(false, cons2(n, cons2(m, x))) -> MIN1(cons2(m, x))
IF_REPLACE4(false, n, m, cons2(k, x)) -> REPLACE3(n, m, x)
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(m)) -> false
eq2(s1(n), 0) -> false
eq2(s1(n), s1(m)) -> eq2(n, m)
le2(0, m) -> true
le2(s1(n), 0) -> false
le2(s1(n), s1(m)) -> le2(n, m)
min1(cons2(0, nil)) -> 0
min1(cons2(s1(n), nil)) -> s1(n)
min1(cons2(n, cons2(m, x))) -> if_min2(le2(n, m), cons2(n, cons2(m, x)))
if_min2(true, cons2(n, cons2(m, x))) -> min1(cons2(n, x))
if_min2(false, cons2(n, cons2(m, x))) -> min1(cons2(m, x))
replace3(n, m, nil) -> nil
replace3(n, m, cons2(k, x)) -> if_replace4(eq2(n, k), n, m, cons2(k, x))
if_replace4(true, n, m, cons2(k, x)) -> cons2(m, x)
if_replace4(false, n, m, cons2(k, x)) -> cons2(k, replace3(n, m, x))
sort1(nil) -> nil
sort1(cons2(n, x)) -> cons2(min1(cons2(n, x)), sort1(replace3(min1(cons2(n, x)), n, x)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
le2(0, x0)
le2(s1(x0), 0)
le2(s1(x0), s1(x1))
min1(cons2(0, nil))
min1(cons2(s1(x0), nil))
min1(cons2(x0, cons2(x1, x2)))
if_min2(true, cons2(x0, cons2(x1, x2)))
if_min2(false, cons2(x0, cons2(x1, x2)))
replace3(x0, x1, nil)
replace3(x0, x1, cons2(x2, x3))
if_replace4(true, x0, x1, cons2(x2, x3))
if_replace4(false, x0, x1, cons2(x2, x3))
sort1(nil)
sort1(cons2(x0, x1))
We have to consider all minimal (P,Q,R)-chains.
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
Q DP problem:
The TRS P consists of the following rules:
REPLACE3(n, m, cons2(k, x)) -> IF_REPLACE4(eq2(n, k), n, m, cons2(k, x))
EQ2(s1(n), s1(m)) -> EQ2(n, m)
SORT1(cons2(n, x)) -> REPLACE3(min1(cons2(n, x)), n, x)
MIN1(cons2(n, cons2(m, x))) -> LE2(n, m)
LE2(s1(n), s1(m)) -> LE2(n, m)
SORT1(cons2(n, x)) -> MIN1(cons2(n, x))
REPLACE3(n, m, cons2(k, x)) -> EQ2(n, k)
SORT1(cons2(n, x)) -> SORT1(replace3(min1(cons2(n, x)), n, x))
IF_MIN2(true, cons2(n, cons2(m, x))) -> MIN1(cons2(n, x))
MIN1(cons2(n, cons2(m, x))) -> IF_MIN2(le2(n, m), cons2(n, cons2(m, x)))
IF_MIN2(false, cons2(n, cons2(m, x))) -> MIN1(cons2(m, x))
IF_REPLACE4(false, n, m, cons2(k, x)) -> REPLACE3(n, m, x)
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(m)) -> false
eq2(s1(n), 0) -> false
eq2(s1(n), s1(m)) -> eq2(n, m)
le2(0, m) -> true
le2(s1(n), 0) -> false
le2(s1(n), s1(m)) -> le2(n, m)
min1(cons2(0, nil)) -> 0
min1(cons2(s1(n), nil)) -> s1(n)
min1(cons2(n, cons2(m, x))) -> if_min2(le2(n, m), cons2(n, cons2(m, x)))
if_min2(true, cons2(n, cons2(m, x))) -> min1(cons2(n, x))
if_min2(false, cons2(n, cons2(m, x))) -> min1(cons2(m, x))
replace3(n, m, nil) -> nil
replace3(n, m, cons2(k, x)) -> if_replace4(eq2(n, k), n, m, cons2(k, x))
if_replace4(true, n, m, cons2(k, x)) -> cons2(m, x)
if_replace4(false, n, m, cons2(k, x)) -> cons2(k, replace3(n, m, x))
sort1(nil) -> nil
sort1(cons2(n, x)) -> cons2(min1(cons2(n, x)), sort1(replace3(min1(cons2(n, x)), n, x)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
le2(0, x0)
le2(s1(x0), 0)
le2(s1(x0), s1(x1))
min1(cons2(0, nil))
min1(cons2(s1(x0), nil))
min1(cons2(x0, cons2(x1, x2)))
if_min2(true, cons2(x0, cons2(x1, x2)))
if_min2(false, cons2(x0, cons2(x1, x2)))
replace3(x0, x1, nil)
replace3(x0, x1, cons2(x2, x3))
if_replace4(true, x0, x1, cons2(x2, x3))
if_replace4(false, x0, x1, cons2(x2, x3))
sort1(nil)
sort1(cons2(x0, x1))
We have to consider all minimal (P,Q,R)-chains.
The approximation of the Dependency Graph contains 5 SCCs with 4 less nodes.
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ AND
↳ QDP
↳ QDPAfsSolverProof
↳ QDP
↳ QDP
↳ QDP
↳ QDP
Q DP problem:
The TRS P consists of the following rules:
LE2(s1(n), s1(m)) -> LE2(n, m)
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(m)) -> false
eq2(s1(n), 0) -> false
eq2(s1(n), s1(m)) -> eq2(n, m)
le2(0, m) -> true
le2(s1(n), 0) -> false
le2(s1(n), s1(m)) -> le2(n, m)
min1(cons2(0, nil)) -> 0
min1(cons2(s1(n), nil)) -> s1(n)
min1(cons2(n, cons2(m, x))) -> if_min2(le2(n, m), cons2(n, cons2(m, x)))
if_min2(true, cons2(n, cons2(m, x))) -> min1(cons2(n, x))
if_min2(false, cons2(n, cons2(m, x))) -> min1(cons2(m, x))
replace3(n, m, nil) -> nil
replace3(n, m, cons2(k, x)) -> if_replace4(eq2(n, k), n, m, cons2(k, x))
if_replace4(true, n, m, cons2(k, x)) -> cons2(m, x)
if_replace4(false, n, m, cons2(k, x)) -> cons2(k, replace3(n, m, x))
sort1(nil) -> nil
sort1(cons2(n, x)) -> cons2(min1(cons2(n, x)), sort1(replace3(min1(cons2(n, x)), n, x)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
le2(0, x0)
le2(s1(x0), 0)
le2(s1(x0), s1(x1))
min1(cons2(0, nil))
min1(cons2(s1(x0), nil))
min1(cons2(x0, cons2(x1, x2)))
if_min2(true, cons2(x0, cons2(x1, x2)))
if_min2(false, cons2(x0, cons2(x1, x2)))
replace3(x0, x1, nil)
replace3(x0, x1, cons2(x2, x3))
if_replace4(true, x0, x1, cons2(x2, x3))
if_replace4(false, x0, x1, cons2(x2, x3))
sort1(nil)
sort1(cons2(x0, x1))
We have to consider all minimal (P,Q,R)-chains.
By using an argument filtering and a montonic ordering, at least one Dependency Pair of this SCC can be strictly oriented.
LE2(s1(n), s1(m)) -> LE2(n, m)
Used argument filtering: LE2(x1, x2) = x2
s1(x1) = s1(x1)
Used ordering: Quasi Precedence:
trivial
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ AND
↳ QDP
↳ QDPAfsSolverProof
↳ QDP
↳ PisEmptyProof
↳ QDP
↳ QDP
↳ QDP
↳ QDP
Q DP problem:
P is empty.
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(m)) -> false
eq2(s1(n), 0) -> false
eq2(s1(n), s1(m)) -> eq2(n, m)
le2(0, m) -> true
le2(s1(n), 0) -> false
le2(s1(n), s1(m)) -> le2(n, m)
min1(cons2(0, nil)) -> 0
min1(cons2(s1(n), nil)) -> s1(n)
min1(cons2(n, cons2(m, x))) -> if_min2(le2(n, m), cons2(n, cons2(m, x)))
if_min2(true, cons2(n, cons2(m, x))) -> min1(cons2(n, x))
if_min2(false, cons2(n, cons2(m, x))) -> min1(cons2(m, x))
replace3(n, m, nil) -> nil
replace3(n, m, cons2(k, x)) -> if_replace4(eq2(n, k), n, m, cons2(k, x))
if_replace4(true, n, m, cons2(k, x)) -> cons2(m, x)
if_replace4(false, n, m, cons2(k, x)) -> cons2(k, replace3(n, m, x))
sort1(nil) -> nil
sort1(cons2(n, x)) -> cons2(min1(cons2(n, x)), sort1(replace3(min1(cons2(n, x)), n, x)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
le2(0, x0)
le2(s1(x0), 0)
le2(s1(x0), s1(x1))
min1(cons2(0, nil))
min1(cons2(s1(x0), nil))
min1(cons2(x0, cons2(x1, x2)))
if_min2(true, cons2(x0, cons2(x1, x2)))
if_min2(false, cons2(x0, cons2(x1, x2)))
replace3(x0, x1, nil)
replace3(x0, x1, cons2(x2, x3))
if_replace4(true, x0, x1, cons2(x2, x3))
if_replace4(false, x0, x1, cons2(x2, x3))
sort1(nil)
sort1(cons2(x0, x1))
We have to consider all minimal (P,Q,R)-chains.
The TRS P is empty. Hence, there is no (P,Q,R) chain.
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ AND
↳ QDP
↳ QDP
↳ QDPAfsSolverProof
↳ QDP
↳ QDP
↳ QDP
Q DP problem:
The TRS P consists of the following rules:
IF_MIN2(true, cons2(n, cons2(m, x))) -> MIN1(cons2(n, x))
MIN1(cons2(n, cons2(m, x))) -> IF_MIN2(le2(n, m), cons2(n, cons2(m, x)))
IF_MIN2(false, cons2(n, cons2(m, x))) -> MIN1(cons2(m, x))
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(m)) -> false
eq2(s1(n), 0) -> false
eq2(s1(n), s1(m)) -> eq2(n, m)
le2(0, m) -> true
le2(s1(n), 0) -> false
le2(s1(n), s1(m)) -> le2(n, m)
min1(cons2(0, nil)) -> 0
min1(cons2(s1(n), nil)) -> s1(n)
min1(cons2(n, cons2(m, x))) -> if_min2(le2(n, m), cons2(n, cons2(m, x)))
if_min2(true, cons2(n, cons2(m, x))) -> min1(cons2(n, x))
if_min2(false, cons2(n, cons2(m, x))) -> min1(cons2(m, x))
replace3(n, m, nil) -> nil
replace3(n, m, cons2(k, x)) -> if_replace4(eq2(n, k), n, m, cons2(k, x))
if_replace4(true, n, m, cons2(k, x)) -> cons2(m, x)
if_replace4(false, n, m, cons2(k, x)) -> cons2(k, replace3(n, m, x))
sort1(nil) -> nil
sort1(cons2(n, x)) -> cons2(min1(cons2(n, x)), sort1(replace3(min1(cons2(n, x)), n, x)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
le2(0, x0)
le2(s1(x0), 0)
le2(s1(x0), s1(x1))
min1(cons2(0, nil))
min1(cons2(s1(x0), nil))
min1(cons2(x0, cons2(x1, x2)))
if_min2(true, cons2(x0, cons2(x1, x2)))
if_min2(false, cons2(x0, cons2(x1, x2)))
replace3(x0, x1, nil)
replace3(x0, x1, cons2(x2, x3))
if_replace4(true, x0, x1, cons2(x2, x3))
if_replace4(false, x0, x1, cons2(x2, x3))
sort1(nil)
sort1(cons2(x0, x1))
We have to consider all minimal (P,Q,R)-chains.
By using an argument filtering and a montonic ordering, at least one Dependency Pair of this SCC can be strictly oriented.
IF_MIN2(true, cons2(n, cons2(m, x))) -> MIN1(cons2(n, x))
IF_MIN2(false, cons2(n, cons2(m, x))) -> MIN1(cons2(m, x))
Used argument filtering: IF_MIN2(x1, x2) = x2
cons2(x1, x2) = cons1(x2)
MIN1(x1) = x1
le2(x1, x2) = le
0 = 0
true = true
s1(x1) = s
false = false
Used ordering: Quasi Precedence:
[le, true] > false
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ AND
↳ QDP
↳ QDP
↳ QDPAfsSolverProof
↳ QDP
↳ DependencyGraphProof
↳ QDP
↳ QDP
↳ QDP
Q DP problem:
The TRS P consists of the following rules:
MIN1(cons2(n, cons2(m, x))) -> IF_MIN2(le2(n, m), cons2(n, cons2(m, x)))
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(m)) -> false
eq2(s1(n), 0) -> false
eq2(s1(n), s1(m)) -> eq2(n, m)
le2(0, m) -> true
le2(s1(n), 0) -> false
le2(s1(n), s1(m)) -> le2(n, m)
min1(cons2(0, nil)) -> 0
min1(cons2(s1(n), nil)) -> s1(n)
min1(cons2(n, cons2(m, x))) -> if_min2(le2(n, m), cons2(n, cons2(m, x)))
if_min2(true, cons2(n, cons2(m, x))) -> min1(cons2(n, x))
if_min2(false, cons2(n, cons2(m, x))) -> min1(cons2(m, x))
replace3(n, m, nil) -> nil
replace3(n, m, cons2(k, x)) -> if_replace4(eq2(n, k), n, m, cons2(k, x))
if_replace4(true, n, m, cons2(k, x)) -> cons2(m, x)
if_replace4(false, n, m, cons2(k, x)) -> cons2(k, replace3(n, m, x))
sort1(nil) -> nil
sort1(cons2(n, x)) -> cons2(min1(cons2(n, x)), sort1(replace3(min1(cons2(n, x)), n, x)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
le2(0, x0)
le2(s1(x0), 0)
le2(s1(x0), s1(x1))
min1(cons2(0, nil))
min1(cons2(s1(x0), nil))
min1(cons2(x0, cons2(x1, x2)))
if_min2(true, cons2(x0, cons2(x1, x2)))
if_min2(false, cons2(x0, cons2(x1, x2)))
replace3(x0, x1, nil)
replace3(x0, x1, cons2(x2, x3))
if_replace4(true, x0, x1, cons2(x2, x3))
if_replace4(false, x0, x1, cons2(x2, x3))
sort1(nil)
sort1(cons2(x0, x1))
We have to consider all minimal (P,Q,R)-chains.
The approximation of the Dependency Graph contains 0 SCCs with 1 less node.
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ AND
↳ QDP
↳ QDP
↳ QDP
↳ QDPAfsSolverProof
↳ QDP
↳ QDP
Q DP problem:
The TRS P consists of the following rules:
EQ2(s1(n), s1(m)) -> EQ2(n, m)
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(m)) -> false
eq2(s1(n), 0) -> false
eq2(s1(n), s1(m)) -> eq2(n, m)
le2(0, m) -> true
le2(s1(n), 0) -> false
le2(s1(n), s1(m)) -> le2(n, m)
min1(cons2(0, nil)) -> 0
min1(cons2(s1(n), nil)) -> s1(n)
min1(cons2(n, cons2(m, x))) -> if_min2(le2(n, m), cons2(n, cons2(m, x)))
if_min2(true, cons2(n, cons2(m, x))) -> min1(cons2(n, x))
if_min2(false, cons2(n, cons2(m, x))) -> min1(cons2(m, x))
replace3(n, m, nil) -> nil
replace3(n, m, cons2(k, x)) -> if_replace4(eq2(n, k), n, m, cons2(k, x))
if_replace4(true, n, m, cons2(k, x)) -> cons2(m, x)
if_replace4(false, n, m, cons2(k, x)) -> cons2(k, replace3(n, m, x))
sort1(nil) -> nil
sort1(cons2(n, x)) -> cons2(min1(cons2(n, x)), sort1(replace3(min1(cons2(n, x)), n, x)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
le2(0, x0)
le2(s1(x0), 0)
le2(s1(x0), s1(x1))
min1(cons2(0, nil))
min1(cons2(s1(x0), nil))
min1(cons2(x0, cons2(x1, x2)))
if_min2(true, cons2(x0, cons2(x1, x2)))
if_min2(false, cons2(x0, cons2(x1, x2)))
replace3(x0, x1, nil)
replace3(x0, x1, cons2(x2, x3))
if_replace4(true, x0, x1, cons2(x2, x3))
if_replace4(false, x0, x1, cons2(x2, x3))
sort1(nil)
sort1(cons2(x0, x1))
We have to consider all minimal (P,Q,R)-chains.
By using an argument filtering and a montonic ordering, at least one Dependency Pair of this SCC can be strictly oriented.
EQ2(s1(n), s1(m)) -> EQ2(n, m)
Used argument filtering: EQ2(x1, x2) = x2
s1(x1) = s1(x1)
Used ordering: Quasi Precedence:
trivial
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ AND
↳ QDP
↳ QDP
↳ QDP
↳ QDPAfsSolverProof
↳ QDP
↳ PisEmptyProof
↳ QDP
↳ QDP
Q DP problem:
P is empty.
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(m)) -> false
eq2(s1(n), 0) -> false
eq2(s1(n), s1(m)) -> eq2(n, m)
le2(0, m) -> true
le2(s1(n), 0) -> false
le2(s1(n), s1(m)) -> le2(n, m)
min1(cons2(0, nil)) -> 0
min1(cons2(s1(n), nil)) -> s1(n)
min1(cons2(n, cons2(m, x))) -> if_min2(le2(n, m), cons2(n, cons2(m, x)))
if_min2(true, cons2(n, cons2(m, x))) -> min1(cons2(n, x))
if_min2(false, cons2(n, cons2(m, x))) -> min1(cons2(m, x))
replace3(n, m, nil) -> nil
replace3(n, m, cons2(k, x)) -> if_replace4(eq2(n, k), n, m, cons2(k, x))
if_replace4(true, n, m, cons2(k, x)) -> cons2(m, x)
if_replace4(false, n, m, cons2(k, x)) -> cons2(k, replace3(n, m, x))
sort1(nil) -> nil
sort1(cons2(n, x)) -> cons2(min1(cons2(n, x)), sort1(replace3(min1(cons2(n, x)), n, x)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
le2(0, x0)
le2(s1(x0), 0)
le2(s1(x0), s1(x1))
min1(cons2(0, nil))
min1(cons2(s1(x0), nil))
min1(cons2(x0, cons2(x1, x2)))
if_min2(true, cons2(x0, cons2(x1, x2)))
if_min2(false, cons2(x0, cons2(x1, x2)))
replace3(x0, x1, nil)
replace3(x0, x1, cons2(x2, x3))
if_replace4(true, x0, x1, cons2(x2, x3))
if_replace4(false, x0, x1, cons2(x2, x3))
sort1(nil)
sort1(cons2(x0, x1))
We have to consider all minimal (P,Q,R)-chains.
The TRS P is empty. Hence, there is no (P,Q,R) chain.
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ AND
↳ QDP
↳ QDP
↳ QDP
↳ QDP
↳ QDPAfsSolverProof
↳ QDP
Q DP problem:
The TRS P consists of the following rules:
REPLACE3(n, m, cons2(k, x)) -> IF_REPLACE4(eq2(n, k), n, m, cons2(k, x))
IF_REPLACE4(false, n, m, cons2(k, x)) -> REPLACE3(n, m, x)
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(m)) -> false
eq2(s1(n), 0) -> false
eq2(s1(n), s1(m)) -> eq2(n, m)
le2(0, m) -> true
le2(s1(n), 0) -> false
le2(s1(n), s1(m)) -> le2(n, m)
min1(cons2(0, nil)) -> 0
min1(cons2(s1(n), nil)) -> s1(n)
min1(cons2(n, cons2(m, x))) -> if_min2(le2(n, m), cons2(n, cons2(m, x)))
if_min2(true, cons2(n, cons2(m, x))) -> min1(cons2(n, x))
if_min2(false, cons2(n, cons2(m, x))) -> min1(cons2(m, x))
replace3(n, m, nil) -> nil
replace3(n, m, cons2(k, x)) -> if_replace4(eq2(n, k), n, m, cons2(k, x))
if_replace4(true, n, m, cons2(k, x)) -> cons2(m, x)
if_replace4(false, n, m, cons2(k, x)) -> cons2(k, replace3(n, m, x))
sort1(nil) -> nil
sort1(cons2(n, x)) -> cons2(min1(cons2(n, x)), sort1(replace3(min1(cons2(n, x)), n, x)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
le2(0, x0)
le2(s1(x0), 0)
le2(s1(x0), s1(x1))
min1(cons2(0, nil))
min1(cons2(s1(x0), nil))
min1(cons2(x0, cons2(x1, x2)))
if_min2(true, cons2(x0, cons2(x1, x2)))
if_min2(false, cons2(x0, cons2(x1, x2)))
replace3(x0, x1, nil)
replace3(x0, x1, cons2(x2, x3))
if_replace4(true, x0, x1, cons2(x2, x3))
if_replace4(false, x0, x1, cons2(x2, x3))
sort1(nil)
sort1(cons2(x0, x1))
We have to consider all minimal (P,Q,R)-chains.
By using an argument filtering and a montonic ordering, at least one Dependency Pair of this SCC can be strictly oriented.
IF_REPLACE4(false, n, m, cons2(k, x)) -> REPLACE3(n, m, x)
Used argument filtering: REPLACE3(x1, x2, x3) = x3
cons2(x1, x2) = cons1(x2)
IF_REPLACE4(x1, x2, x3, x4) = x4
eq2(x1, x2) = eq
0 = 0
true = true
s1(x1) = s
false = false
Used ordering: Quasi Precedence:
[eq, false] > true
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ AND
↳ QDP
↳ QDP
↳ QDP
↳ QDP
↳ QDPAfsSolverProof
↳ QDP
↳ DependencyGraphProof
↳ QDP
Q DP problem:
The TRS P consists of the following rules:
REPLACE3(n, m, cons2(k, x)) -> IF_REPLACE4(eq2(n, k), n, m, cons2(k, x))
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(m)) -> false
eq2(s1(n), 0) -> false
eq2(s1(n), s1(m)) -> eq2(n, m)
le2(0, m) -> true
le2(s1(n), 0) -> false
le2(s1(n), s1(m)) -> le2(n, m)
min1(cons2(0, nil)) -> 0
min1(cons2(s1(n), nil)) -> s1(n)
min1(cons2(n, cons2(m, x))) -> if_min2(le2(n, m), cons2(n, cons2(m, x)))
if_min2(true, cons2(n, cons2(m, x))) -> min1(cons2(n, x))
if_min2(false, cons2(n, cons2(m, x))) -> min1(cons2(m, x))
replace3(n, m, nil) -> nil
replace3(n, m, cons2(k, x)) -> if_replace4(eq2(n, k), n, m, cons2(k, x))
if_replace4(true, n, m, cons2(k, x)) -> cons2(m, x)
if_replace4(false, n, m, cons2(k, x)) -> cons2(k, replace3(n, m, x))
sort1(nil) -> nil
sort1(cons2(n, x)) -> cons2(min1(cons2(n, x)), sort1(replace3(min1(cons2(n, x)), n, x)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
le2(0, x0)
le2(s1(x0), 0)
le2(s1(x0), s1(x1))
min1(cons2(0, nil))
min1(cons2(s1(x0), nil))
min1(cons2(x0, cons2(x1, x2)))
if_min2(true, cons2(x0, cons2(x1, x2)))
if_min2(false, cons2(x0, cons2(x1, x2)))
replace3(x0, x1, nil)
replace3(x0, x1, cons2(x2, x3))
if_replace4(true, x0, x1, cons2(x2, x3))
if_replace4(false, x0, x1, cons2(x2, x3))
sort1(nil)
sort1(cons2(x0, x1))
We have to consider all minimal (P,Q,R)-chains.
The approximation of the Dependency Graph contains 0 SCCs with 1 less node.
↳ QTRS
↳ Non-Overlap Check
↳ QTRS
↳ DependencyPairsProof
↳ QDP
↳ DependencyGraphProof
↳ AND
↳ QDP
↳ QDP
↳ QDP
↳ QDP
↳ QDP
Q DP problem:
The TRS P consists of the following rules:
SORT1(cons2(n, x)) -> SORT1(replace3(min1(cons2(n, x)), n, x))
The TRS R consists of the following rules:
eq2(0, 0) -> true
eq2(0, s1(m)) -> false
eq2(s1(n), 0) -> false
eq2(s1(n), s1(m)) -> eq2(n, m)
le2(0, m) -> true
le2(s1(n), 0) -> false
le2(s1(n), s1(m)) -> le2(n, m)
min1(cons2(0, nil)) -> 0
min1(cons2(s1(n), nil)) -> s1(n)
min1(cons2(n, cons2(m, x))) -> if_min2(le2(n, m), cons2(n, cons2(m, x)))
if_min2(true, cons2(n, cons2(m, x))) -> min1(cons2(n, x))
if_min2(false, cons2(n, cons2(m, x))) -> min1(cons2(m, x))
replace3(n, m, nil) -> nil
replace3(n, m, cons2(k, x)) -> if_replace4(eq2(n, k), n, m, cons2(k, x))
if_replace4(true, n, m, cons2(k, x)) -> cons2(m, x)
if_replace4(false, n, m, cons2(k, x)) -> cons2(k, replace3(n, m, x))
sort1(nil) -> nil
sort1(cons2(n, x)) -> cons2(min1(cons2(n, x)), sort1(replace3(min1(cons2(n, x)), n, x)))
The set Q consists of the following terms:
eq2(0, 0)
eq2(0, s1(x0))
eq2(s1(x0), 0)
eq2(s1(x0), s1(x1))
le2(0, x0)
le2(s1(x0), 0)
le2(s1(x0), s1(x1))
min1(cons2(0, nil))
min1(cons2(s1(x0), nil))
min1(cons2(x0, cons2(x1, x2)))
if_min2(true, cons2(x0, cons2(x1, x2)))
if_min2(false, cons2(x0, cons2(x1, x2)))
replace3(x0, x1, nil)
replace3(x0, x1, cons2(x2, x3))
if_replace4(true, x0, x1, cons2(x2, x3))
if_replace4(false, x0, x1, cons2(x2, x3))
sort1(nil)
sort1(cons2(x0, x1))
We have to consider all minimal (P,Q,R)-chains.