YES
proof of prog.inttrs
# AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty


Termination of the given IRSwT could be proven:

(0) IRSwT
(1) IRSFormatTransformerProof [EQUIVALENT, 0 ms]
(2) IRSwT
(3) IRSwTTerminationDigraphProof [EQUIVALENT, 69 ms]
(4) IRSwT
(5) IntTRSCompressionProof [EQUIVALENT, 0 ms]
(6) IRSwT
(7) TempFilterProof [SOUND, 23 ms]
(8) IntTRS
(9) PolynomialOrderProcessor [EQUIVALENT, 7 ms]
(10) YES


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(0)
Obligation:
Rules:
f1_0_main_ConstantStackPush(arg1) -> f74_0_factorial_GE(arg1P) :|: 10 = arg1P
f74_0_factorial_GE(x) -> f74_0_factorial_GE(x1) :|: x - 1 = x1 && x - 1 <= x - 1 && -1 <= x - 1
__init(x2) -> f1_0_main_ConstantStackPush(x3) :|: 0 <= 0
Start term: __init(arg1)

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(1) IRSFormatTransformerProof (EQUIVALENT)
Reformatted IRS to match normalized format (transformed away non-linear left-hand sides, !=, / and %).
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(2)
Obligation:
Rules:
f1_0_main_ConstantStackPush(arg1) -> f74_0_factorial_GE(arg1P) :|: 10 = arg1P
f74_0_factorial_GE(x) -> f74_0_factorial_GE(x1) :|: x - 1 = x1 && x - 1 <= x - 1 && -1 <= x - 1
__init(x2) -> f1_0_main_ConstantStackPush(x3) :|: 0 <= 0
Start term: __init(arg1)

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(3) IRSwTTerminationDigraphProof (EQUIVALENT)
Constructed termination digraph!
Nodes:
(1) f1_0_main_ConstantStackPush(arg1) -> f74_0_factorial_GE(arg1P) :|: 10 = arg1P
(2) f74_0_factorial_GE(x) -> f74_0_factorial_GE(x1) :|: x - 1 = x1 && x - 1 <= x - 1 && -1 <= x - 1
(3) __init(x2) -> f1_0_main_ConstantStackPush(x3) :|: 0 <= 0

Arcs:
(1) -> (2)
(2) -> (2)
(3) -> (1)

This digraph is fully evaluated!
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(4)
Obligation:

Termination digraph:
Nodes:
(1) f74_0_factorial_GE(x) -> f74_0_factorial_GE(x1) :|: x - 1 = x1 && x - 1 <= x - 1 && -1 <= x - 1

Arcs:
(1) -> (1)

This digraph is fully evaluated!

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(5) IntTRSCompressionProof (EQUIVALENT)
Compressed rules.
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(6)
Obligation:
Rules:
f74_0_factorial_GE(x:0) -> f74_0_factorial_GE(x:0 - 1) :|: x:0 > -1

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(7) TempFilterProof (SOUND)
Used the following sort dictionary for filtering: 
f74_0_factorial_GE(INTEGER)
Replaced non-predefined constructor symbols by 0.
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(8)
Obligation:
Rules:
f74_0_factorial_GE(x:0) -> f74_0_factorial_GE(c) :|: c = x:0 - 1 && x:0 > -1

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(9) PolynomialOrderProcessor (EQUIVALENT)
Found the following polynomial interpretation:
[f74_0_factorial_GE(x)] = x

The following rules are decreasing:
f74_0_factorial_GE(x:0) -> f74_0_factorial_GE(c) :|: c = x:0 - 1 && x:0 > -1
The following rules are bounded:
f74_0_factorial_GE(x:0) -> f74_0_factorial_GE(c) :|: c = x:0 - 1 && x:0 > -1

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(10)
YES