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TRS Stand 20472 pair #381712269
details
property
value
status
complete
benchmark
secret5.xml
ran by
Akihisa Yamada
cpu timeout
1200 seconds
wallclock timeout
300 seconds
memory limit
137438953472 bytes
execution host
n033.star.cs.uiowa.edu
space
Secret_07_TRS
run statistics
property
value
solver
Wanda
configuration
FirstOrder
runtime (wallclock)
0.328936815262 seconds
cpu usage
0.291583126
max memory
1.0186752E7
stage attributes
key
value
output-size
14143
starexec-result
YES
output
/export/starexec/sandbox2/solver/bin/starexec_run_FirstOrder /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES We consider the system theBenchmark. We are asked to determine termination of the following first-order TRS. 0 : [] --> o a : [o] --> o cs : [o * o] --> o d : [o] --> o f : [o * o] --> o nf : [o * o] --> o nil : [] --> o ns : [o] --> o nt : [o] --> o p : [o * o] --> o q : [o] --> o r : [o] --> o s : [o] --> o t : [o] --> o t(X) => cs(r(q(X)), nt(ns(X))) q(0) => 0 q(s(X)) => s(p(q(X), d(X))) d(0) => 0 d(s(X)) => s(s(d(X))) p(0, X) => X p(X, 0) => X p(s(X), s(Y)) => s(s(p(X, Y))) f(0, X) => nil f(s(X), cs(Y, Z)) => cs(Y, nf(X, a(Z))) t(X) => nt(X) s(X) => ns(X) f(X, Y) => nf(X, Y) a(nt(X)) => t(a(X)) a(ns(X)) => s(a(X)) a(nf(X, Y)) => f(a(X), a(Y)) a(X) => 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] t#(X) =#> q#(X) 1] q#(s(X)) =#> s#(p(q(X), d(X))) 2] q#(s(X)) =#> p#(q(X), d(X)) 3] q#(s(X)) =#> q#(X) 4] q#(s(X)) =#> d#(X) 5] d#(s(X)) =#> s#(s(d(X))) 6] d#(s(X)) =#> s#(d(X)) 7] d#(s(X)) =#> d#(X) 8] p#(s(X), s(Y)) =#> s#(s(p(X, Y))) 9] p#(s(X), s(Y)) =#> s#(p(X, Y)) 10] p#(s(X), s(Y)) =#> p#(X, Y) 11] f#(s(X), cs(Y, Z)) =#> a#(Z) 12] a#(nt(X)) =#> t#(a(X)) 13] a#(nt(X)) =#> a#(X) 14] a#(ns(X)) =#> s#(a(X)) 15] a#(ns(X)) =#> a#(X) 16] a#(nf(X, Y)) =#> f#(a(X), a(Y)) 17] a#(nf(X, Y)) =#> a#(X) 18] a#(nf(X, Y)) =#> a#(Y) Rules R_0: t(X) => cs(r(q(X)), nt(ns(X))) q(0) => 0 q(s(X)) => s(p(q(X), d(X))) d(0) => 0 d(s(X)) => s(s(d(X))) p(0, X) => X p(X, 0) => X p(s(X), s(Y)) => s(s(p(X, Y))) f(0, X) => nil f(s(X), cs(Y, Z)) => cs(Y, nf(X, a(Z))) t(X) => nt(X) s(X) => ns(X) f(X, Y) => nf(X, Y) a(nt(X)) => t(a(X)) a(ns(X)) => s(a(X)) a(nf(X, Y)) => f(a(X), a(Y)) a(X) => X Thus, the original system is terminating if (P_0, R_0, minimal, formative) is finite. We consider the dependency pair problem (P_0, R_0, minimal, formative). We place the elements of P in a dependency graph approximation G (see e.g. [Kop12, Thm. 7.27, 7.29], as follows: * 0 : 1, 2, 3, 4 * 1 : * 2 : 8, 9, 10 * 3 : 1, 2, 3, 4
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