(0) Obligation:
Runtime Complexity TRS:
The TRS R consists of the following rules:
*(x, +(y, z)) → +(*(x, y), *(x, z))
Rewrite Strategy: FULL
(1) DecreasingLoopProof (EQUIVALENT transformation)
The following loop(s) give(s) rise to the lower bound Ω(n1):
The rewrite sequence
*(x, +(y, z)) →+ +(*(x, y), *(x, z))
gives rise to a decreasing loop by considering the right hand sides subterm at position [0].
The pumping substitution is [y / +(y, z)].
The result substitution is [ ].
(2) BOUNDS(n^1, INF)
(3) RenamingProof (EQUIVALENT transformation)
Renamed function symbols to avoid clashes with predefined symbol.
(4) Obligation:
Runtime Complexity Relative TRS:
The TRS R consists of the following rules:
*'(x, +'(y, z)) → +'(*'(x, y), *'(x, z))
S is empty.
Rewrite Strategy: FULL
(5) SlicingProof (LOWER BOUND(ID) transformation)
Sliced the following arguments:
*'/0
(6) Obligation:
Runtime Complexity Relative TRS:
The TRS R consists of the following rules:
*'(+'(y, z)) → +'(*'(y), *'(z))
S is empty.
Rewrite Strategy: FULL
(7) TypeInferenceProof (BOTH BOUNDS(ID, ID) transformation)
Infered types.
(8) Obligation:
TRS:
Rules:
*'(+'(y, z)) → +'(*'(y), *'(z))
Types:
*' :: +' → +'
+' :: +' → +' → +'
hole_+'1_0 :: +'
gen_+'2_0 :: Nat → +'
(9) OrderProof (LOWER BOUND(ID) transformation)
Heuristically decided to analyse the following defined symbols:
*'
(10) Obligation:
TRS:
Rules:
*'(
+'(
y,
z)) →
+'(
*'(
y),
*'(
z))
Types:
*' :: +' → +'
+' :: +' → +' → +'
hole_+'1_0 :: +'
gen_+'2_0 :: Nat → +'
Generator Equations:
gen_+'2_0(0) ⇔ hole_+'1_0
gen_+'2_0(+(x, 1)) ⇔ +'(hole_+'1_0, gen_+'2_0(x))
The following defined symbols remain to be analysed:
*'
(11) RewriteLemmaProof (LOWER BOUND(ID) transformation)
Proved the following rewrite lemma:
*'(
gen_+'2_0(
+(
1,
n4_0))) →
*3_0, rt ∈ Ω(n4
0)
Induction Base:
*'(gen_+'2_0(+(1, 0)))
Induction Step:
*'(gen_+'2_0(+(1, +(n4_0, 1)))) →RΩ(1)
+'(*'(hole_+'1_0), *'(gen_+'2_0(+(1, n4_0)))) →IH
+'(*'(hole_+'1_0), *3_0)
We have rt ∈ Ω(n1) and sz ∈ O(n). Thus, we have ircR ∈ Ω(n).
(12) Complex Obligation (BEST)
(13) Obligation:
TRS:
Rules:
*'(
+'(
y,
z)) →
+'(
*'(
y),
*'(
z))
Types:
*' :: +' → +'
+' :: +' → +' → +'
hole_+'1_0 :: +'
gen_+'2_0 :: Nat → +'
Lemmas:
*'(gen_+'2_0(+(1, n4_0))) → *3_0, rt ∈ Ω(n40)
Generator Equations:
gen_+'2_0(0) ⇔ hole_+'1_0
gen_+'2_0(+(x, 1)) ⇔ +'(hole_+'1_0, gen_+'2_0(x))
No more defined symbols left to analyse.
(14) LowerBoundsProof (EQUIVALENT transformation)
The lowerbound Ω(n1) was proven with the following lemma:
*'(gen_+'2_0(+(1, n4_0))) → *3_0, rt ∈ Ω(n40)
(15) BOUNDS(n^1, INF)
(16) Obligation:
TRS:
Rules:
*'(
+'(
y,
z)) →
+'(
*'(
y),
*'(
z))
Types:
*' :: +' → +'
+' :: +' → +' → +'
hole_+'1_0 :: +'
gen_+'2_0 :: Nat → +'
Lemmas:
*'(gen_+'2_0(+(1, n4_0))) → *3_0, rt ∈ Ω(n40)
Generator Equations:
gen_+'2_0(0) ⇔ hole_+'1_0
gen_+'2_0(+(x, 1)) ⇔ +'(hole_+'1_0, gen_+'2_0(x))
No more defined symbols left to analyse.
(17) LowerBoundsProof (EQUIVALENT transformation)
The lowerbound Ω(n1) was proven with the following lemma:
*'(gen_+'2_0(+(1, n4_0))) → *3_0, rt ∈ Ω(n40)
(18) BOUNDS(n^1, INF)