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TRS Stand 20472 pair #381715370
details
property
value
status
complete
benchmark
Ex2_Luc02a_C.xml
ran by
Akihisa Yamada
cpu timeout
1200 seconds
wallclock timeout
300 seconds
memory limit
137438953472 bytes
execution host
n105.star.cs.uiowa.edu
space
Transformed_CSR_04
run statistics
property
value
solver
Wanda
configuration
FirstOrder
runtime (wallclock)
1.48178505898 seconds
cpu usage
1.478794788
max memory
3.975168E7
stage attributes
key
value
output-size
46251
starexec-result
YES
output
/export/starexec/sandbox/solver/bin/starexec_run_FirstOrder /export/starexec/sandbox/benchmark/theBenchmark.xml /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES We consider the system theBenchmark. We are asked to determine termination of the following first-order TRS. 0 : [] --> o active : [o] --> o add : [o * o] --> o cons : [o * o] --> o dbl : [o] --> o first : [o * o] --> o mark : [o] --> o nil : [] --> o ok : [o] --> o proper : [o] --> o recip : [o] --> o s : [o] --> o sqr : [o] --> o terms : [o] --> o top : [o] --> o active(terms(X)) => mark(cons(recip(sqr(X)), terms(s(X)))) active(sqr(0)) => mark(0) active(sqr(s(X))) => mark(s(add(sqr(X), dbl(X)))) active(dbl(0)) => mark(0) active(dbl(s(X))) => mark(s(s(dbl(X)))) active(add(0, X)) => mark(X) active(add(s(X), Y)) => mark(s(add(X, Y))) active(first(0, X)) => mark(nil) active(first(s(X), cons(Y, Z))) => mark(cons(Y, first(X, Z))) active(terms(X)) => terms(active(X)) active(cons(X, Y)) => cons(active(X), Y) active(recip(X)) => recip(active(X)) active(sqr(X)) => sqr(active(X)) active(s(X)) => s(active(X)) active(add(X, Y)) => add(active(X), Y) active(add(X, Y)) => add(X, active(Y)) active(dbl(X)) => dbl(active(X)) active(first(X, Y)) => first(active(X), Y) active(first(X, Y)) => first(X, active(Y)) terms(mark(X)) => mark(terms(X)) cons(mark(X), Y) => mark(cons(X, Y)) recip(mark(X)) => mark(recip(X)) sqr(mark(X)) => mark(sqr(X)) s(mark(X)) => mark(s(X)) add(mark(X), Y) => mark(add(X, Y)) add(X, mark(Y)) => mark(add(X, Y)) dbl(mark(X)) => mark(dbl(X)) first(mark(X), Y) => mark(first(X, Y)) first(X, mark(Y)) => mark(first(X, Y)) proper(terms(X)) => terms(proper(X)) proper(cons(X, Y)) => cons(proper(X), proper(Y)) proper(recip(X)) => recip(proper(X)) proper(sqr(X)) => sqr(proper(X)) proper(s(X)) => s(proper(X)) proper(0) => ok(0) proper(add(X, Y)) => add(proper(X), proper(Y)) proper(dbl(X)) => dbl(proper(X)) proper(first(X, Y)) => first(proper(X), proper(Y)) proper(nil) => ok(nil) terms(ok(X)) => ok(terms(X)) cons(ok(X), ok(Y)) => ok(cons(X, Y)) recip(ok(X)) => ok(recip(X)) sqr(ok(X)) => ok(sqr(X)) s(ok(X)) => ok(s(X)) add(ok(X), ok(Y)) => ok(add(X, Y)) dbl(ok(X)) => ok(dbl(X)) first(ok(X), ok(Y)) => ok(first(X, Y)) top(mark(X)) => top(proper(X)) top(ok(X)) => top(active(X)) We use the dependency pair framework as described in [Kop12, Ch. 6/7], with static dependency pairs (see [KusIsoSakBla09] and the adaptation for AFSMs in [Kop12, Ch. 7.8]). We thus obtain the following dependency pair problem (P_0, R_0, minimal, formative): Dependency Pairs P_0: 0] active#(terms(X)) =#> cons#(recip(sqr(X)), terms(s(X))) 1] active#(terms(X)) =#> recip#(sqr(X)) 2] active#(terms(X)) =#> sqr#(X) 3] active#(terms(X)) =#> terms#(s(X)) 4] active#(terms(X)) =#> s#(X) 5] active#(sqr(s(X))) =#> s#(add(sqr(X), dbl(X))) 6] active#(sqr(s(X))) =#> add#(sqr(X), dbl(X)) 7] active#(sqr(s(X))) =#> sqr#(X) 8] active#(sqr(s(X))) =#> dbl#(X) 9] active#(dbl(s(X))) =#> s#(s(dbl(X))) 10] active#(dbl(s(X))) =#> s#(dbl(X)) 11] active#(dbl(s(X))) =#> dbl#(X) 12] active#(add(s(X), Y)) =#> s#(add(X, Y)) 13] active#(add(s(X), Y)) =#> add#(X, Y) 14] active#(first(s(X), cons(Y, Z))) =#> cons#(Y, first(X, Z)) 15] active#(first(s(X), cons(Y, Z))) =#> first#(X, Z) 16] active#(terms(X)) =#> terms#(active(X))
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