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TRS Stand 20472 pair #381715765
details
property
value
status
complete
benchmark
Ex6_GM04_C.xml
ran by
Akihisa Yamada
cpu timeout
1200 seconds
wallclock timeout
300 seconds
memory limit
137438953472 bytes
execution host
n190.star.cs.uiowa.edu
space
Transformed_CSR_04
run statistics
property
value
solver
Wanda
configuration
FirstOrder
runtime (wallclock)
0.182799100876 seconds
cpu usage
0.171418645
max memory
4448256.0
stage attributes
key
value
output-size
7980
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. active : [o] --> o c : [] --> o f : [o] --> o g : [o] --> o mark : [o] --> o ok : [o] --> o proper : [o] --> o top : [o] --> o active(c) => mark(f(g(c))) active(f(g(X))) => mark(g(X)) proper(c) => ok(c) proper(f(X)) => f(proper(X)) proper(g(X)) => g(proper(X)) f(ok(X)) => ok(f(X)) g(ok(X)) => ok(g(X)) 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#(c) =#> f#(g(c)) 1] active#(c) =#> g#(c) 2] active#(f(g(X))) =#> g#(X) 3] proper#(f(X)) =#> f#(proper(X)) 4] proper#(f(X)) =#> proper#(X) 5] proper#(g(X)) =#> g#(proper(X)) 6] proper#(g(X)) =#> proper#(X) 7] f#(ok(X)) =#> f#(X) 8] g#(ok(X)) =#> g#(X) 9] top#(mark(X)) =#> top#(proper(X)) 10] top#(mark(X)) =#> proper#(X) 11] top#(ok(X)) =#> top#(active(X)) 12] top#(ok(X)) =#> active#(X) Rules R_0: active(c) => mark(f(g(c))) active(f(g(X))) => mark(g(X)) proper(c) => ok(c) proper(f(X)) => f(proper(X)) proper(g(X)) => g(proper(X)) f(ok(X)) => ok(f(X)) g(ok(X)) => ok(g(X)) top(mark(X)) => top(proper(X)) top(ok(X)) => top(active(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 : 7 * 1 : * 2 : 8 * 3 : 7 * 4 : 3, 4, 5, 6 * 5 : 8 * 6 : 3, 4, 5, 6 * 7 : 7 * 8 : 8 * 9 : 11, 12 * 10 : 3, 4, 5, 6 * 11 : 9, 10 * 12 : 0, 1, 2 This graph has the following strongly connected components: P_1: proper#(f(X)) =#> proper#(X) proper#(g(X)) =#> proper#(X) P_2: f#(ok(X)) =#> f#(X) P_3: g#(ok(X)) =#> g#(X) P_4: top#(mark(X)) =#> top#(proper(X))
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