Initial Problem

Start: l0
Program_Vars: X₀, X₁, X₂, X₃
Temp_Vars:
Locations: l0, l1, l10, l11, l12, l2, l3, l4, l5, l6, l7, l8, l9
Transitions:
t₀: l0(X₀, X₁, X₂, X₃) → l2(X₀, X₁, X₂, X₃)
t₃: l1(X₀, X₁, X₂, X₃) → l4(X₀, X₁, X₂, X₃)
t₁₁: l10(X₀, X₁, X₂, X₃) → l9(X₀, X₁-1, X₂, X₃) :|: 0 < X₁ ∧ 0 < X₁
t₁₂: l10(X₀, X₁, X₂, X₃) → l9(X₀, X₀, X₂, X₃) :|: 0 < X₁ ∧ X₁ ≤ 0
t₁₃: l10(X₀, X₁, X₂, X₃) → l9(X₀, X₁-1, X₂-1, X₃) :|: X₁ ≤ 0 ∧ 0 < X₁
t₁₄: l10(X₀, X₁, X₂, X₃) → l9(X₀, X₀, X₂-1, X₃) :|: X₁ ≤ 0 ∧ X₁ ≤ 0
t₁₅: l11(X₀, X₁, X₂, X₃) → l12(X₀, X₁, X₂, X₃)
t₁: l2(X₀, X₁, X₂, X₃) → l3(X₀, X₁, X₂, X₃)
t₂: l3(X₀, X₁, X₂, X₃) → l1(X₀, X₁, X₂, X₃)
t₄: l4(X₀, X₁, X₂, X₃) → l5(X₀, X₁, X₂, X₃)
t₅: l5(X₀, X₁, X₂, X₃) → l6(X₀, X₁, X₂, X₃)
t₆: l6(X₀, X₁, X₂, X₃) → l7(X₀, X₁, X₂, X₃)
t₇: l7(X₀, X₁, X₂, X₃) → l8(X₀, X₁, X₂, X₃)
t₈: l8(X₀, X₁, X₂, X₃) → l9(X₀, X₃, X₀, X₃)
t₉: l9(X₀, X₁, X₂, X₃) → l10(X₀, X₁, X₂, X₃) :|: 0 < X₂
t₁₀: l9(X₀, X₁, X₂, X₃) → l11(X₀, X₁, X₂, X₃) :|: X₂ ≤ 0

Preprocessing

Cut unsatisfiable transition t₁₂: l10→l9

Cut unsatisfiable transition t₁₃: l10→l9

Found invariant X₂ ≤ 0 ∧ X₂ ≤ X₀ for location l11

Found invariant X₂ ≤ 0 ∧ X₂ ≤ X₀ for location l12

Found invariant X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₀+X₂ ∧ 1 ≤ X₀ for location l10

Found invariant X₂ ≤ X₀ for location l9

Problem after Preprocessing

Start: l0
Program_Vars: X₀, X₁, X₂, X₃
Temp_Vars:
Locations: l0, l1, l10, l11, l12, l2, l3, l4, l5, l6, l7, l8, l9
Transitions:
t₀: l0(X₀, X₁, X₂, X₃) → l2(X₀, X₁, X₂, X₃)
t₃: l1(X₀, X₁, X₂, X₃) → l4(X₀, X₁, X₂, X₃)
t₁₁: l10(X₀, X₁, X₂, X₃) → l9(X₀, X₁-1, X₂, X₃) :|: 0 < X₁ ∧ 0 < X₁ ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₀+X₂ ∧ 1 ≤ X₀
t₁₄: l10(X₀, X₁, X₂, X₃) → l9(X₀, X₀, X₂-1, X₃) :|: X₁ ≤ 0 ∧ X₁ ≤ 0 ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₀+X₂ ∧ 1 ≤ X₀
t₁₅: l11(X₀, X₁, X₂, X₃) → l12(X₀, X₁, X₂, X₃) :|: X₂ ≤ 0 ∧ X₂ ≤ X₀
t₁: l2(X₀, X₁, X₂, X₃) → l3(X₀, X₁, X₂, X₃)
t₂: l3(X₀, X₁, X₂, X₃) → l1(X₀, X₁, X₂, X₃)
t₄: l4(X₀, X₁, X₂, X₃) → l5(X₀, X₁, X₂, X₃)
t₅: l5(X₀, X₁, X₂, X₃) → l6(X₀, X₁, X₂, X₃)
t₆: l6(X₀, X₁, X₂, X₃) → l7(X₀, X₁, X₂, X₃)
t₇: l7(X₀, X₁, X₂, X₃) → l8(X₀, X₁, X₂, X₃)
t₈: l8(X₀, X₁, X₂, X₃) → l9(X₀, X₃, X₀, X₃)
t₉: l9(X₀, X₁, X₂, X₃) → l10(X₀, X₁, X₂, X₃) :|: 0 < X₂ ∧ X₂ ≤ X₀
t₁₀: l9(X₀, X₁, X₂, X₃) → l11(X₀, X₁, X₂, X₃) :|: X₂ ≤ 0 ∧ X₂ ≤ X₀

MPRF for transition t₁₄: l10(X₀, X₁, X₂, X₃) → l9(X₀, X₀, X₂-1, X₃) :|: X₁ ≤ 0 ∧ X₁ ≤ 0 ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₀+X₂ ∧ 1 ≤ X₀ of depth 1:

new bound:

X₀ {O(n)}

MPRF:

l9 [X₂ ]
l10 [X₂ ]

Found invariant X₁ ≤ X₃ ∧ X₂ ≤ 0 ∧ X₂ ≤ X₀ ∧ X₀+X₂ ≤ 0 ∧ X₀ ≤ X₂ ∧ X₀ ≤ 0 for location l11

Found invariant X₁ ≤ X₃ ∧ X₂ ≤ 0 ∧ X₂ ≤ X₀ ∧ X₀+X₂ ≤ 0 ∧ X₀ ≤ X₂ ∧ X₀ ≤ 0 for location l12

Found invariant X₁ ≤ X₃ ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₀+X₂ ∧ X₀ ≤ X₂ ∧ 1 ≤ X₀ for location l10

Found invariant X₁ ≤ X₃ ∧ X₂ ≤ X₀ ∧ X₀ ≤ X₂ for location l9

Found invariant 1 ≤ 0 for location l11

Found invariant 1 ≤ 0 for location l12

Found invariant 1 ≤ 0 for location l10

Found invariant 1 ≤ 0 for location l9

Time-Bound by TWN-Loops:

TWN-Loops: t₁₁ 2⋅X₀⋅X₀+2⋅X₃+5⋅X₀+5 {O(n^2)}

TWN-Loops:

entry: t₈: l8(X₀, X₁, X₂, X₃) → l9(X₀, X₃, X₀, X₃)
results in twn-loop: twn:Inv: [X₂ ≤ X₀ ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₀+X₂ ∧ 1 ≤ X₀] , (X₀,X₁,X₂,X₃) -> (X₀,X₁-1,X₂,X₃) :|: 0 < X₂ ∧ 0 < X₁ ∧ 0 < X₁
entry: t₁₄: l10(X₀, X₁, X₂, X₃) → l9(X₀, X₀, X₂-1, X₃) :|: X₁ ≤ 0 ∧ X₁ ≤ 0 ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₀+X₂ ∧ 1 ≤ X₀
results in twn-loop: twn:Inv: [X₂ ≤ X₀ ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₀+X₂ ∧ 1 ≤ X₀] , (X₀,X₁,X₂,X₃) -> (X₀,X₁-1,X₂,X₃) :|: 0 < X₂ ∧ 0 < X₁ ∧ 0 < X₁
order: [X₀; X₁; X₂; X₃]
closed-form:
X₀: X₀
X₁: X₁ + [[n != 0]] * -1 * n^1
X₂: X₂
X₃: X₃

Termination: true
Formula:

1 < 0 ∧ 0 < X₂
∨ 0 < X₁ ∧ 1 ≤ 0 ∧ 0 ≤ 1 ∧ 0 < X₂

Stabilization-Threshold for: 0 < X₁
alphas_abs: X₁
M: 0
N: 1
Bound: 2⋅X₁+2 {O(n)}

relevant size-bounds w.r.t. t₈:
X₁: X₃ {O(n)}
Runtime-bound of t₈: 1 {O(1)}
Results in: 2⋅X₃+5 {O(n)}

order: [X₀; X₁; X₂]
closed-form:
X₀: X₀
X₁: X₁ + [[n != 0]] * -1 * n^1
X₂: X₂

Termination: true
Formula:

1 < 0 ∧ 0 < X₂
∨ 0 < X₁ ∧ 1 ≤ 0 ∧ 0 ≤ 1 ∧ 0 < X₂

Stabilization-Threshold for: 0 < X₁
alphas_abs: X₁
M: 0
N: 1
Bound: 2⋅X₁+2 {O(n)}

relevant size-bounds w.r.t. t₁₄:
X₁: X₀ {O(n)}
Runtime-bound of t₁₄: X₀ {O(n)}
Results in: 2⋅X₀⋅X₀+5⋅X₀ {O(n^2)}

2⋅X₀⋅X₀+2⋅X₃+5⋅X₀+5 {O(n^2)}

Time-Bound by TWN-Loops:

TWN-Loops: t₉ 2⋅X₀⋅X₀+2⋅X₃+5⋅X₀+5 {O(n^2)}

relevant size-bounds w.r.t. t₈:
X₁: X₃ {O(n)}
Runtime-bound of t₈: 1 {O(1)}
Results in: 2⋅X₃+5 {O(n)}

relevant size-bounds w.r.t. t₁₄:
X₁: X₀ {O(n)}
Runtime-bound of t₁₄: X₀ {O(n)}
Results in: 2⋅X₀⋅X₀+5⋅X₀ {O(n^2)}

2⋅X₀⋅X₀+2⋅X₃+5⋅X₀+5 {O(n^2)}

Analysing control-flow refined program

Cut unsatisfiable transition t₁₂₁: n_l9___2→l11

Cut unsatisfiable transition t₁₂₃: n_l9___6→l11

Found invariant X₂ ≤ 0 ∧ X₂ ≤ X₀ for location l11

Found invariant 1+X₂ ≤ X₁ ∧ 1+X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 3 ≤ X₁+X₂ ∧ 3 ≤ X₀+X₂ ∧ X₁ ≤ X₀ ∧ 2 ≤ X₁ ∧ 4 ≤ X₀+X₁ ∧ X₀ ≤ X₁ ∧ 2 ≤ X₀ for location n_l10___3

Found invariant X₂ ≤ X₁ ∧ 1+X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₁+X₂ ∧ 3 ≤ X₀+X₂ ∧ 1+X₁ ≤ X₀ ∧ 1 ≤ X₁ ∧ 3 ≤ X₀+X₁ ∧ X₀ ≤ 1+X₁ ∧ 2 ≤ X₀ for location n_l10___1

Found invariant X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 1 ≤ X₁+X₂ ∧ 2 ≤ X₀+X₂ ∧ 0 ≤ X₁ ∧ 1 ≤ X₀+X₁ ∧ 1 ≤ X₀ for location n_l10___4

Found invariant X₂ ≤ X₁ ∧ 1+X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₁+X₂ ∧ 3 ≤ X₀+X₂ ∧ 1+X₁ ≤ X₀ ∧ 1 ≤ X₁ ∧ 3 ≤ X₀+X₁ ∧ X₀ ≤ 1+X₁ ∧ 2 ≤ X₀ for location n_l9___2

Found invariant X₂ ≤ 0 ∧ X₂ ≤ X₀ for location l12

Found invariant X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 1 ≤ X₁+X₂ ∧ 2 ≤ X₀+X₂ ∧ 0 ≤ X₁ ∧ 1 ≤ X₀+X₁ ∧ 1 ≤ X₀ for location n_l9___6

Found invariant X₃ ≤ X₁ ∧ X₁ ≤ X₃ ∧ X₂ ≤ X₀ ∧ X₀ ≤ X₂ for location l9

Found invariant X₃ ≤ X₁ ∧ X₁ ≤ X₃ ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₀+X₂ ∧ X₀ ≤ X₂ ∧ 1 ≤ X₀ for location n_l10___7

Found invariant 1+X₂ ≤ X₁ ∧ 1+X₂ ≤ X₀ ∧ 0 ≤ X₂ ∧ 1 ≤ X₁+X₂ ∧ 1 ≤ X₀+X₂ ∧ X₁ ≤ X₀ ∧ 1 ≤ X₁ ∧ 2 ≤ X₀+X₁ ∧ X₀ ≤ X₁ ∧ 1 ≤ X₀ for location n_l9___5

MPRF for transition t₁₀₅: n_l10___1(X₀, X₁, X₂, X₃) → n_l9___6(X₀, X₁-1, X₂, X₃) :|: 0 < X₁ ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ X₂ ≤ X₀ ∧ 0 < X₁ ∧ 1 ≤ X₂ ∧ X₂ ≤ X₁ ∧ 1+X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₁+X₂ ∧ 3 ≤ X₀+X₂ ∧ 1+X₁ ≤ X₀ ∧ 1 ≤ X₁ ∧ 3 ≤ X₀+X₁ ∧ X₀ ≤ 1+X₁ ∧ 2 ≤ X₀ of depth 1:

new bound:

2⋅X₀+1 {O(n)}

MPRF:

n_l9___2 [X₂ ]
n_l10___1 [X₂ ]
n_l9___5 [X₂ ]
n_l10___3 [X₁+X₂-X₀ ]
n_l9___6 [X₂-1 ]
n_l10___4 [X₂-1 ]

MPRF for transition t₁₀₆: n_l10___3(X₀, X₁, X₂, X₃) → n_l9___2(X₀, X₁-1, X₂, X₃) :|: 1+X₂ ≤ X₀ ∧ 0 < X₂ ∧ X₀ ≤ X₁ ∧ X₁ ≤ X₀ ∧ X₂ ≤ X₀ ∧ 0 < X₁ ∧ 1 ≤ X₂ ∧ 1+X₂ ≤ X₁ ∧ 1+X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 3 ≤ X₁+X₂ ∧ 3 ≤ X₀+X₂ ∧ X₁ ≤ X₀ ∧ 2 ≤ X₁ ∧ 4 ≤ X₀+X₁ ∧ X₀ ≤ X₁ ∧ 2 ≤ X₀ of depth 1:

new bound:

4⋅X₀+3 {O(n)}

MPRF:

n_l9___2 [X₀+X₂-2 ]
n_l10___1 [X₀+X₂-2 ]
n_l9___5 [X₀+X₂-1 ]
n_l10___3 [X₁+X₂-1 ]
n_l9___6 [X₀+X₂-2 ]
n_l10___4 [X₀+X₂-2 ]

MPRF for transition t₁₀₇: n_l10___4(X₀, X₁, X₂, X₃) → n_l9___5(X₀, X₀, X₂-1, X₃) :|: X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ X₁ ≤ 0 ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 1 ≤ X₁+X₂ ∧ 2 ≤ X₀+X₂ ∧ 0 ≤ X₁ ∧ 1 ≤ X₀+X₁ ∧ 1 ≤ X₀ of depth 1:

new bound:

2⋅X₀ {O(n)}

MPRF:

n_l9___2 [X₂ ]
n_l10___1 [X₂ ]
n_l9___5 [X₂ ]
n_l10___3 [X₂ ]
n_l9___6 [X₂ ]
n_l10___4 [X₂ ]

MPRF for transition t₁₁₁: n_l9___2(X₀, X₁, X₂, X₃) → n_l10___1(X₀, X₁, X₂, X₃) :|: 0 < X₁ ∧ X₂ ≤ X₀ ∧ 0 < X₂ ∧ 1 ≤ X₂ ∧ 1 ≤ X₂ ∧ X₂ ≤ X₀ ∧ 0 ≤ X₁ ∧ 1 ≤ X₂ ∧ X₂ ≤ X₀ ∧ X₂ ≤ X₀ ∧ 0 < X₂ ∧ X₂ ≤ X₁ ∧ 1+X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₁+X₂ ∧ 3 ≤ X₀+X₂ ∧ 1+X₁ ≤ X₀ ∧ 1 ≤ X₁ ∧ 3 ≤ X₀+X₁ ∧ X₀ ≤ 1+X₁ ∧ 2 ≤ X₀ of depth 1:

new bound:

4⋅X₀+1 {O(n)}

MPRF:

n_l9___2 [X₂ ]
n_l10___1 [X₂-1 ]
n_l9___5 [X₁+X₂-X₀ ]
n_l10___3 [X₁+X₂-X₀ ]
n_l9___6 [X₂-1 ]
n_l10___4 [X₂-1 ]

MPRF for transition t₁₁₂: n_l9___5(X₀, X₁, X₂, X₃) → n_l10___3(X₀, X₁, X₂, X₃) :|: 0 < X₁ ∧ X₂ ≤ X₀ ∧ X₀ ≤ X₁ ∧ X₁ ≤ X₀ ∧ 0 ≤ X₂ ∧ 1+X₂ ≤ X₀ ∧ X₂ ≤ X₀ ∧ 0 < X₂ ∧ 1+X₂ ≤ X₁ ∧ 1+X₂ ≤ X₀ ∧ 0 ≤ X₂ ∧ 1 ≤ X₁+X₂ ∧ 1 ≤ X₀+X₂ ∧ X₁ ≤ X₀ ∧ 1 ≤ X₁ ∧ 2 ≤ X₀+X₁ ∧ X₀ ≤ X₁ ∧ 1 ≤ X₀ of depth 1:

new bound:

2⋅X₀+1 {O(n)}

MPRF:

n_l9___2 [X₂-1 ]
n_l10___1 [X₂-1 ]
n_l9___5 [X₂ ]
n_l10___3 [X₂-1 ]
n_l9___6 [X₂-1 ]
n_l10___4 [X₂-1 ]

Found invariant X₂ ≤ 0 ∧ X₂ ≤ X₀ ∧ X₀+X₂ ≤ 1 ∧ X₀ ≤ 1+X₂ ∧ X₀ ≤ 1 for location l11

Found invariant 1+X₂ ≤ X₁ ∧ 1+X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 3 ≤ X₁+X₂ ∧ X₁ ≤ 1+X₂ ∧ 3 ≤ X₀+X₂ ∧ X₀ ≤ 1+X₂ ∧ X₁ ≤ X₀ ∧ 2 ≤ X₁ ∧ 4 ≤ X₀+X₁ ∧ X₀ ≤ X₁ ∧ 2 ≤ X₀ for location n_l10___3

Found invariant X₂ ≤ X₁ ∧ 1+X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₁+X₂ ∧ X₁ ≤ X₂ ∧ 3 ≤ X₀+X₂ ∧ X₀ ≤ 1+X₂ ∧ 1+X₁ ≤ X₀ ∧ 1 ≤ X₁ ∧ 3 ≤ X₀+X₁ ∧ X₀ ≤ 1+X₁ ∧ 2 ≤ X₀ for location n_l10___1

Found invariant 1 ≤ X₃ ∧ 2 ≤ X₂+X₃ ∧ 1 ≤ X₁+X₃ ∧ 1+X₁ ≤ X₃ ∧ 2 ≤ X₀+X₃ ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 1 ≤ X₁+X₂ ∧ 2 ≤ X₀+X₂ ∧ X₀ ≤ X₂ ∧ 0 ≤ X₁ ∧ 1 ≤ X₀+X₁ ∧ 1 ≤ X₀ for location n_l10___4

Found invariant X₂ ≤ X₁ ∧ 1+X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₁+X₂ ∧ X₁ ≤ X₂ ∧ 3 ≤ X₀+X₂ ∧ X₀ ≤ 1+X₂ ∧ 1+X₁ ≤ X₀ ∧ 1 ≤ X₁ ∧ 3 ≤ X₀+X₁ ∧ X₀ ≤ 1+X₁ ∧ 2 ≤ X₀ for location n_l9___2

Found invariant X₂ ≤ 0 ∧ X₂ ≤ X₀ ∧ X₀+X₂ ≤ 1 ∧ X₀ ≤ 1+X₂ ∧ X₀ ≤ 1 for location l12

Found invariant 1 ≤ X₃ ∧ 2 ≤ X₂+X₃ ∧ 1 ≤ X₁+X₃ ∧ 1+X₁ ≤ X₃ ∧ 2 ≤ X₀+X₃ ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 1 ≤ X₁+X₂ ∧ 2 ≤ X₀+X₂ ∧ X₀ ≤ X₂ ∧ 0 ≤ X₁ ∧ 1 ≤ X₀+X₁ ∧ 1 ≤ X₀ for location n_l9___6

Found invariant X₃ ≤ X₁ ∧ X₁ ≤ X₃ ∧ X₂ ≤ X₀ ∧ X₀ ≤ X₂ for location l9

Found invariant X₃ ≤ X₁ ∧ X₁ ≤ X₃ ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₀+X₂ ∧ X₀ ≤ X₂ ∧ 1 ≤ X₀ for location n_l10___7

Found invariant 1+X₂ ≤ X₁ ∧ 1+X₂ ≤ X₀ ∧ 0 ≤ X₂ ∧ 1 ≤ X₁+X₂ ∧ X₁ ≤ 1+X₂ ∧ 1 ≤ X₀+X₂ ∧ X₀ ≤ 1+X₂ ∧ X₁ ≤ X₀ ∧ 1 ≤ X₁ ∧ 2 ≤ X₀+X₁ ∧ X₀ ≤ X₁ ∧ 1 ≤ X₀ for location n_l9___5

Found invariant X₃ ≤ X₁ ∧ X₂ ≤ 0 ∧ X₂ ≤ X₀ for location l11

Found invariant X₃ ≤ 0 ∧ 1+X₃ ≤ X₂ ∧ 2+X₃ ≤ X₁ ∧ 2+X₃ ≤ X₀ ∧ 1+X₂ ≤ X₁ ∧ 1+X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 3 ≤ X₁+X₂ ∧ 3 ≤ X₀+X₂ ∧ X₁ ≤ X₀ ∧ 2 ≤ X₁ ∧ 4 ≤ X₀+X₁ ∧ X₀ ≤ X₁ ∧ 2 ≤ X₀ for location n_l10___3

Found invariant X₃ ≤ 0 ∧ 1+X₃ ≤ X₂ ∧ 1+X₃ ≤ X₁ ∧ 2+X₃ ≤ X₀ ∧ X₂ ≤ X₁ ∧ 1+X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₁+X₂ ∧ 3 ≤ X₀+X₂ ∧ 1+X₁ ≤ X₀ ∧ 1 ≤ X₁ ∧ 3 ≤ X₀+X₁ ∧ X₀ ≤ 1+X₁ ∧ 2 ≤ X₀ for location n_l10___1

Found invariant X₃ ≤ 0 ∧ 1+X₃ ≤ X₂ ∧ X₃ ≤ X₁ ∧ 2+X₃ ≤ X₀ ∧ 1+X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 1 ≤ X₁+X₂ ∧ 3 ≤ X₀+X₂ ∧ 2+X₁ ≤ X₀ ∧ 0 ≤ X₁ ∧ 2 ≤ X₀+X₁ ∧ 2 ≤ X₀ for location n_l10___4

Found invariant X₃ ≤ 0 ∧ 1+X₃ ≤ X₂ ∧ 1+X₃ ≤ X₁ ∧ 2+X₃ ≤ X₀ ∧ X₂ ≤ X₁ ∧ 1+X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₁+X₂ ∧ 3 ≤ X₀+X₂ ∧ 1+X₁ ≤ X₀ ∧ 1 ≤ X₁ ∧ 3 ≤ X₀+X₁ ∧ X₀ ≤ 1+X₁ ∧ 2 ≤ X₀ for location n_l9___2

Found invariant X₃ ≤ X₁ ∧ X₂ ≤ 0 ∧ X₂ ≤ X₀ for location l12

Found invariant X₃ ≤ 0 ∧ 1+X₃ ≤ X₂ ∧ X₃ ≤ X₁ ∧ 2+X₃ ≤ X₀ ∧ 1+X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 1 ≤ X₁+X₂ ∧ 3 ≤ X₀+X₂ ∧ 2+X₁ ≤ X₀ ∧ 0 ≤ X₁ ∧ 2 ≤ X₀+X₁ ∧ 2 ≤ X₀ for location n_l9___6

Found invariant X₃ ≤ X₁ ∧ X₁ ≤ X₃ ∧ X₂ ≤ X₀ ∧ X₀ ≤ X₂ for location l9

Found invariant X₃ ≤ X₁ ∧ X₁ ≤ X₃ ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₀+X₂ ∧ X₀ ≤ X₂ ∧ 1 ≤ X₀ for location n_l10___7

Found invariant X₃ ≤ 0 ∧ X₃ ≤ X₂ ∧ 1+X₃ ≤ X₁ ∧ 1+X₃ ≤ X₀ ∧ 1+X₂ ≤ X₁ ∧ 1+X₂ ≤ X₀ ∧ 0 ≤ X₂ ∧ 1 ≤ X₁+X₂ ∧ 1 ≤ X₀+X₂ ∧ X₁ ≤ X₀ ∧ 1 ≤ X₁ ∧ 2 ≤ X₀+X₁ ∧ X₀ ≤ X₁ ∧ 1 ≤ X₀ for location n_l9___5

Time-Bound by TWN-Loops:

TWN-Loops: t₁₀₈ 12⋅X₀⋅X₀+2⋅X₃+20⋅X₀+14 {O(n^2)}

TWN-Loops:

entry: t₁₁₀: n_l10___7(X₀, X₁, X₂, X₃) → n_l9___6(X₀, X₁-1, X₂, X₃) :|: 0 < X₀ ∧ X₀ ≤ X₂ ∧ X₂ ≤ X₀ ∧ X₁ ≤ X₃ ∧ X₃ ≤ X₁ ∧ X₂ ≤ X₀ ∧ 0 < X₁ ∧ 1 ≤ X₂ ∧ X₃ ≤ X₁ ∧ X₁ ≤ X₃ ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₀+X₂ ∧ X₀ ≤ X₂ ∧ 1 ≤ X₀
results in twn-loop: twn:Inv: [X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 1 ≤ X₁+X₂ ∧ 2 ≤ X₀+X₂ ∧ 0 ≤ X₁ ∧ 1 ≤ X₀+X₁ ∧ 1 ≤ X₀ ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 1 ≤ X₁+X₂ ∧ 2 ≤ X₀+X₂ ∧ 0 ≤ X₁ ∧ 1 ≤ X₀+X₁ ∧ 1 ≤ X₀] , (X₀,X₁,X₂,X₃) -> (X₀,X₁-1,X₂,X₃) :|: X₂ ≤ X₀ ∧ 0 < X₂ ∧ 1 ≤ X₂ ∧ 1 ≤ X₂ ∧ X₂ ≤ X₀ ∧ X₂ ≤ X₀ ∧ 0 < X₂ ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ X₂ ≤ X₀ ∧ 0 < X₁ ∧ 1 ≤ X₂
entry: t₁₀₅: n_l10___1(X₀, X₁, X₂, X₃) → n_l9___6(X₀, X₁-1, X₂, X₃) :|: 0 < X₁ ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ X₂ ≤ X₀ ∧ 0 < X₁ ∧ 1 ≤ X₂ ∧ X₂ ≤ X₁ ∧ 1+X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 2 ≤ X₁+X₂ ∧ 3 ≤ X₀+X₂ ∧ 1+X₁ ≤ X₀ ∧ 1 ≤ X₁ ∧ 3 ≤ X₀+X₁ ∧ X₀ ≤ 1+X₁ ∧ 2 ≤ X₀
results in twn-loop: twn:Inv: [X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 1 ≤ X₁+X₂ ∧ 2 ≤ X₀+X₂ ∧ 0 ≤ X₁ ∧ 1 ≤ X₀+X₁ ∧ 1 ≤ X₀ ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ 1 ≤ X₁+X₂ ∧ 2 ≤ X₀+X₂ ∧ 0 ≤ X₁ ∧ 1 ≤ X₀+X₁ ∧ 1 ≤ X₀] , (X₀,X₁,X₂,X₃) -> (X₀,X₁-1,X₂,X₃) :|: X₂ ≤ X₀ ∧ 0 < X₂ ∧ 1 ≤ X₂ ∧ 1 ≤ X₂ ∧ X₂ ≤ X₀ ∧ X₂ ≤ X₀ ∧ 0 < X₂ ∧ X₂ ≤ X₀ ∧ 1 ≤ X₂ ∧ X₂ ≤ X₀ ∧ 0 < X₁ ∧ 1 ≤ X₂
order: [X₀; X₁; X₂; X₃]
closed-form:
X₀: X₀
X₁: X₁ + [[n != 0]] * -1 * n^1
X₂: X₂
X₃: X₃

Termination: true
Formula:

1 < X₂ ∧ 1 < 0 ∧ X₂ < X₀ ∧ 0 < X₂
∨ 1 < X₂ ∧ 1 < 0 ∧ X₂ ≤ X₀ ∧ X₀ ≤ X₂ ∧ 0 < X₂
∨ 1 < X₂ ∧ 0 < X₁ ∧ 1 ≤ 0 ∧ 0 ≤ 1 ∧ X₂ < X₀ ∧ 0 < X₂
∨ 1 < X₂ ∧ 0 < X₁ ∧ 1 ≤ 0 ∧ 0 ≤ 1 ∧ X₂ ≤ X₀ ∧ X₀ ≤ X₂ ∧ 0 < X₂
∨ 1 ≤ X₂ ∧ X₂ ≤ 1 ∧ 1 < 0 ∧ X₂ < X₀ ∧ 0 < X₂
∨ 1 ≤ X₂ ∧ X₂ ≤ 1 ∧ 1 < 0 ∧ X₂ ≤ X₀ ∧ X₀ ≤ X₂ ∧ 0 < X₂
∨ 1 ≤ X₂ ∧ X₂ ≤ 1 ∧ 0 < X₁ ∧ 1 ≤ 0 ∧ 0 ≤ 1 ∧ X₂ < X₀ ∧ 0 < X₂
∨ 1 ≤ X₂ ∧ X₂ ≤ 1 ∧ 0 < X₁ ∧ 1 ≤ 0 ∧ 0 ≤ 1 ∧ X₂ ≤ X₀ ∧ X₀ ≤ X₂ ∧ 0 < X₂

Stabilization-Threshold for: 0 < X₁
alphas_abs: X₁
M: 0
N: 1
Bound: 2⋅X₁+2 {O(n)}

relevant size-bounds w.r.t. t₁₁₀:
X₁: X₃ {O(n)}
Runtime-bound of t₁₁₀: 1 {O(1)}
Results in: 2⋅X₃+7 {O(n)}

order: [X₀; X₁; X₂; X₃]
closed-form:
X₀: X₀
X₁: X₁ + [[n != 0]] * -1 * n^1
X₂: X₂
X₃: X₃

Termination: true
Formula:

1 < X₂ ∧ 1 < 0 ∧ X₂ < X₀ ∧ 0 < X₂
∨ 1 < X₂ ∧ 1 < 0 ∧ X₂ ≤ X₀ ∧ X₀ ≤ X₂ ∧ 0 < X₂
∨ 1 < X₂ ∧ 0 < X₁ ∧ 1 ≤ 0 ∧ 0 ≤ 1 ∧ X₂ < X₀ ∧ 0 < X₂
∨ 1 < X₂ ∧ 0 < X₁ ∧ 1 ≤ 0 ∧ 0 ≤ 1 ∧ X₂ ≤ X₀ ∧ X₀ ≤ X₂ ∧ 0 < X₂
∨ 1 ≤ X₂ ∧ X₂ ≤ 1 ∧ 1 < 0 ∧ X₂ < X₀ ∧ 0 < X₂
∨ 1 ≤ X₂ ∧ X₂ ≤ 1 ∧ 1 < 0 ∧ X₂ ≤ X₀ ∧ X₀ ≤ X₂ ∧ 0 < X₂
∨ 1 ≤ X₂ ∧ X₂ ≤ 1 ∧ 0 < X₁ ∧ 1 ≤ 0 ∧ 0 ≤ 1 ∧ X₂ < X₀ ∧ 0 < X₂
∨ 1 ≤ X₂ ∧ X₂ ≤ 1 ∧ 0 < X₁ ∧ 1 ≤ 0 ∧ 0 ≤ 1 ∧ X₂ ≤ X₀ ∧ X₀ ≤ X₂ ∧ 0 < X₂

Stabilization-Threshold for: 0 < X₁
alphas_abs: X₁
M: 0
N: 1
Bound: 2⋅X₁+2 {O(n)}

relevant size-bounds w.r.t. t₁₀₅:
X₁: 3⋅X₀ {O(n)}
Runtime-bound of t₁₀₅: 2⋅X₀+1 {O(n)}
Results in: 12⋅X₀⋅X₀+20⋅X₀+7 {O(n^2)}

12⋅X₀⋅X₀+2⋅X₃+20⋅X₀+14 {O(n^2)}

Time-Bound by TWN-Loops:

TWN-Loops: t₁₁₃ 12⋅X₀⋅X₀+2⋅X₃+20⋅X₀+14 {O(n^2)}

relevant size-bounds w.r.t. t₁₁₀:
X₁: X₃ {O(n)}
Runtime-bound of t₁₁₀: 1 {O(1)}
Results in: 2⋅X₃+7 {O(n)}

relevant size-bounds w.r.t. t₁₀₅:
X₁: 3⋅X₀ {O(n)}
Runtime-bound of t₁₀₅: 2⋅X₀+1 {O(n)}
Results in: 12⋅X₀⋅X₀+20⋅X₀+7 {O(n^2)}

12⋅X₀⋅X₀+2⋅X₃+20⋅X₀+14 {O(n^2)}

CFR did not improve the program. Rolling back

All Bounds

Timebounds

Overall timebound:4⋅X₀⋅X₀+11⋅X₀+4⋅X₃+21 {O(n^2)}
t₀: 1 {O(1)}
t₃: 1 {O(1)}
t₁₁: 2⋅X₀⋅X₀+2⋅X₃+5⋅X₀+5 {O(n^2)}
t₁₄: X₀ {O(n)}
t₁₅: 1 {O(1)}
t₁: 1 {O(1)}
t₂: 1 {O(1)}
t₄: 1 {O(1)}
t₅: 1 {O(1)}
t₆: 1 {O(1)}
t₇: 1 {O(1)}
t₈: 1 {O(1)}
t₉: 2⋅X₀⋅X₀+2⋅X₃+5⋅X₀+5 {O(n^2)}
t₁₀: 1 {O(1)}

Costbounds

Overall costbound: 4⋅X₀⋅X₀+11⋅X₀+4⋅X₃+21 {O(n^2)}
t₀: 1 {O(1)}
t₃: 1 {O(1)}
t₁₁: 2⋅X₀⋅X₀+2⋅X₃+5⋅X₀+5 {O(n^2)}
t₁₄: X₀ {O(n)}
t₁₅: 1 {O(1)}
t₁: 1 {O(1)}
t₂: 1 {O(1)}
t₄: 1 {O(1)}
t₅: 1 {O(1)}
t₆: 1 {O(1)}
t₇: 1 {O(1)}
t₈: 1 {O(1)}
t₉: 2⋅X₀⋅X₀+2⋅X₃+5⋅X₀+5 {O(n^2)}
t₁₀: 1 {O(1)}

Sizebounds

t₀, X₀: X₀ {O(n)}
t₀, X₁: X₁ {O(n)}
t₀, X₂: X₂ {O(n)}
t₀, X₃: X₃ {O(n)}
t₃, X₀: X₀ {O(n)}
t₃, X₁: X₁ {O(n)}
t₃, X₂: X₂ {O(n)}
t₃, X₃: X₃ {O(n)}
t₁₁, X₀: X₀ {O(n)}
t₁₁, X₁: X₀+X₃ {O(n)}
t₁₁, X₂: X₀ {O(n)}
t₁₁, X₃: X₃ {O(n)}
t₁₄, X₀: X₀ {O(n)}
t₁₄, X₁: X₀ {O(n)}
t₁₄, X₂: X₀ {O(n)}
t₁₄, X₃: X₃ {O(n)}
t₁₅, X₀: 2⋅X₀ {O(n)}
t₁₅, X₁: X₀+X₃ {O(n)}
t₁₅, X₂: 2⋅X₀ {O(n)}
t₁₅, X₃: 2⋅X₃ {O(n)}
t₁, X₀: X₀ {O(n)}
t₁, X₁: X₁ {O(n)}
t₁, X₂: X₂ {O(n)}
t₁, X₃: X₃ {O(n)}
t₂, X₀: X₀ {O(n)}
t₂, X₁: X₁ {O(n)}
t₂, X₂: X₂ {O(n)}
t₂, X₃: X₃ {O(n)}
t₄, X₀: X₀ {O(n)}
t₄, X₁: X₁ {O(n)}
t₄, X₂: X₂ {O(n)}
t₄, X₃: X₃ {O(n)}
t₅, X₀: X₀ {O(n)}
t₅, X₁: X₁ {O(n)}
t₅, X₂: X₂ {O(n)}
t₅, X₃: X₃ {O(n)}
t₆, X₀: X₀ {O(n)}
t₆, X₁: X₁ {O(n)}
t₆, X₂: X₂ {O(n)}
t₆, X₃: X₃ {O(n)}
t₇, X₀: X₀ {O(n)}
t₇, X₁: X₁ {O(n)}
t₇, X₂: X₂ {O(n)}
t₇, X₃: X₃ {O(n)}
t₈, X₀: X₀ {O(n)}
t₈, X₁: X₃ {O(n)}
t₈, X₂: X₀ {O(n)}
t₈, X₃: X₃ {O(n)}
t₉, X₀: X₀ {O(n)}
t₉, X₁: X₀+X₃ {O(n)}
t₉, X₂: X₀ {O(n)}
t₉, X₃: X₃ {O(n)}
t₁₀, X₀: 2⋅X₀ {O(n)}
t₁₀, X₁: X₀+X₃ {O(n)}
t₁₀, X₂: 2⋅X₀ {O(n)}
t₁₀, X₃: 2⋅X₃ {O(n)}