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Higher Order Rewriting Union Beta pair #487093915
details
property
value
status
complete
benchmark
Applicative_first_order_05__30.xml
ran by
Akihisa Yamada
cpu timeout
1200 seconds
wallclock timeout
300 seconds
memory limit
137438953472 bytes
execution host
n139.star.cs.uiowa.edu
space
Uncurried_Applicative_11
run statistics
property
value
solver
Wanda 2.2a
configuration
default
runtime (wallclock)
0.741031 seconds
cpu usage
0.741265
user time
0.69993
system time
0.041335
max virtual memory
134184.0
max residence set size
18568.0
stage attributes
key
value
starexec-result
YES
output
YES We consider the system theBenchmark. Alphabet: !faccolon : [a * a] --> a C : [] --> a cons : [c * d] --> d false : [] --> b filter : [c -> b * d] --> d filter2 : [b * c -> b * c * d] --> d map : [c -> c * d] --> d nil : [] --> d true : [] --> b Rules: !faccolon(!faccolon(!faccolon(!faccolon(C, x), y), z), u) => !faccolon(!faccolon(x, z), !faccolon(!faccolon(!faccolon(x, y), z), u)) map(f, nil) => nil map(f, cons(x, y)) => cons(f x, map(f, y)) filter(f, nil) => nil filter(f, cons(x, y)) => filter2(f x, f, x, y) filter2(true, f, x, y) => cons(x, filter(f, y)) filter2(false, f, x, y) => filter(f, y) This AFS is converted to an AFSM simply by replacing all free variables by meta-variables (with arity 0). We use rule removal, following [Kop12, Theorem 2.23]. This gives the following requirements (possibly using Theorems 2.25 and 2.26 in [Kop12]): !faccolon(!faccolon(!faccolon(!faccolon(C, X), Y), Z), U) >? !faccolon(!faccolon(X, Z), !faccolon(!faccolon(!faccolon(X, Y), Z), U)) map(F, nil) >? nil map(F, cons(X, Y)) >? cons(F X, map(F, Y)) filter(F, nil) >? nil filter(F, cons(X, Y)) >? filter2(F X, F, X, Y) filter2(true, F, X, Y) >? cons(X, filter(F, Y)) filter2(false, F, X, Y) >? filter(F, Y) We use a recursive path ordering as defined in [Kop12, Chapter 5]. Argument functions: [[filter2(x_1, x_2, x_3, x_4)]] = filter2(x_2, x_4, x_1, x_3) [[nil]] = _|_ We choose Lex = {!faccolon, @_{o -> o}, filter, filter2} and Mul = {C, cons, false, map, true}, and the following precedence: map > C > !faccolon > false > @_{o -> o} = filter = filter2 > true > cons Taking the argument function into account, and fixing the greater / greater equal choices, the constraints can be denoted as follows: !faccolon(!faccolon(!faccolon(!faccolon(C, X), Y), Z), U) >= !faccolon(!faccolon(X, Z), !faccolon(!faccolon(!faccolon(X, Y), Z), U)) map(F, _|_) >= _|_ map(F, cons(X, Y)) > cons(@_{o -> o}(F, X), map(F, Y)) filter(F, _|_) >= _|_ filter(F, cons(X, Y)) >= filter2(@_{o -> o}(F, X), F, X, Y) filter2(true, F, X, Y) >= cons(X, filter(F, Y)) filter2(false, F, X, Y) >= filter(F, Y) With these choices, we have: 1] !faccolon(!faccolon(!faccolon(!faccolon(C, X), Y), Z), U) >= !faccolon(!faccolon(X, Z), !faccolon(!faccolon(!faccolon(X, Y), Z), U)) because [2], by (Star) 2] !faccolon*(!faccolon(!faccolon(!faccolon(C, X), Y), Z), U) >= !faccolon(!faccolon(X, Z), !faccolon(!faccolon(!faccolon(X, Y), Z), U)) because [3], [14] and [18], by (Stat) 3] !faccolon(!faccolon(!faccolon(C, X), Y), Z) > !faccolon(X, Z) because [4], by definition 4] !faccolon*(!faccolon(!faccolon(C, X), Y), Z) >= !faccolon(X, Z) because [5], [10] and [12], by (Stat) 5] !faccolon(!faccolon(C, X), Y) > X because [6], by definition 6] !faccolon*(!faccolon(C, X), Y) >= X because [7], by (Select) 7] !faccolon(C, X) >= X because [8], by (Star) 8] !faccolon*(C, X) >= X because [9], by (Select) 9] X >= X by (Meta) 10] !faccolon*(!faccolon(!faccolon(C, X), Y), Z) >= X because [11], by (Select) 11] !faccolon(!faccolon(C, X), Y) >= X because [6], by (Star) 12] !faccolon*(!faccolon(!faccolon(C, X), Y), Z) >= Z because [13], by (Select) 13] Z >= Z by (Meta) 14] !faccolon*(!faccolon(!faccolon(!faccolon(C, X), Y), Z), U) >= !faccolon(X, Z) because [15], by (Select) 15] !faccolon(!faccolon(!faccolon(C, X), Y), Z) >= !faccolon(X, Z) because [16] and [17], by (Fun) 16] !faccolon(!faccolon(C, X), Y) >= X because [6], by (Star) 17] Z >= Z by (Meta) 18] !faccolon*(!faccolon(!faccolon(!faccolon(C, X), Y), Z), U) >= !faccolon(!faccolon(!faccolon(X, Y), Z), U) because [19], [31] and [34], by (Stat) 19] !faccolon(!faccolon(!faccolon(C, X), Y), Z) > !faccolon(!faccolon(X, Y), Z) because [20], by definition 20] !faccolon*(!faccolon(!faccolon(C, X), Y), Z) >= !faccolon(!faccolon(X, Y), Z) because [21], [27] and [12], by (Stat) 21] !faccolon(!faccolon(C, X), Y) > !faccolon(X, Y) because [22], by definition 22] !faccolon*(!faccolon(C, X), Y) >= !faccolon(X, Y) because [23], [6] and [25], by (Stat) 23] !faccolon(C, X) > X because [24], by definition 24] !faccolon*(C, X) >= X because [9], by (Select) 25] !faccolon*(!faccolon(C, X), Y) >= Y because [26], by (Select) 26] Y >= Y by (Meta) 27] !faccolon*(!faccolon(!faccolon(C, X), Y), Z) >= !faccolon(X, Y) because [28], by (Select) 28] !faccolon(!faccolon(C, X), Y) >= !faccolon(X, Y) because [29] and [30], by (Fun) 29] !faccolon(C, X) >= X because [24], by (Star) 30] Y >= Y by (Meta) 31] !faccolon*(!faccolon(!faccolon(!faccolon(C, X), Y), Z), U) >= !faccolon(!faccolon(X, Y), Z) because [32], by (Select) 32] !faccolon(!faccolon(!faccolon(C, X), Y), Z) >= !faccolon(!faccolon(X, Y), Z) because [33] and [17], by (Fun) 33] !faccolon(!faccolon(C, X), Y) >= !faccolon(X, Y) because [29] and [30], by (Fun) 34] !faccolon*(!faccolon(!faccolon(!faccolon(C, X), Y), Z), U) >= U because [35], by (Select) 35] U >= U by (Meta) 36] map(F, _|_) >= _|_ by (Bot) 37] map(F, cons(X, Y)) > cons(@_{o -> o}(F, X), map(F, Y)) because [38], by definition 38] map*(F, cons(X, Y)) >= cons(@_{o -> o}(F, X), map(F, Y)) because map > cons, [39] and [46], by (Copy)
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