details

property	value
status	complete
benchmark	2.42.xml
ran by	Akihisa Yamada
cpu timeout	1200 seconds
wallclock timeout	300 seconds
memory limit	137438953472 bytes
execution host	n179.star.cs.uiowa.edu
space	SK90

run statistics

property	value
solver	NTI-TC20-firstrun
configuration	Default 200
runtime (wallclock)	0.296478 seconds
cpu usage	0.643511
user time	0.598231
system time	0.04528
max virtual memory	113188.0
max residence set size	67976.0

stage attributes

key	value
starexec-result	YES

output

YES Prover = TRS(tech=PATTERN_RULES, nb_unfoldings=unlimited, max_nb_unfolded_rules=200) ** BEGIN proof argument ** All the DP problems were proved finite. As all the involved DP processors are sound, the TRS under analysis terminates. ** END proof argument ** ** BEGIN proof description ** ## Searching for a generalized rewrite rule (a rule whose right-hand side contains a variable that does not occur in the left-hand side)... No generalized rewrite rule found! ## Applying the DP framework... ## Round 1: ## DP problem: Dependency pairs = [rev^#(++(_0,_1)) -> rev^#(_1), rev^#(++(_0,_1)) -> rev^#(_0)] TRS = {flatten(nil) -> nil, flatten(unit(_0)) -> flatten(_0), flatten(++(_0,_1)) -> ++(flatten(_0),flatten(_1)), flatten(++(unit(_0),_1)) -> ++(flatten(_0),flatten(_1)), flatten(flatten(_0)) -> flatten(_0), rev(nil) -> nil, rev(unit(_0)) -> unit(_0), rev(++(_0,_1)) -> ++(rev(_1),rev(_0)), rev(rev(_0)) -> _0, ++(_0,nil) -> _0, ++(nil,_0) -> _0, ++(++(_0,_1),_2) -> ++(_0,++(_1,_2))} ## Trying with homeomorphic embeddings... Success! This DP problem is finite. ## DP problem: Dependency pairs = [flatten^#(unit(_0)) -> flatten^#(_0), flatten^#(++(_0,_1)) -> flatten^#(_0), flatten^#(++(_0,_1)) -> flatten^#(_1), flatten^#(++(unit(_0),_1)) -> flatten^#(_0), flatten^#(++(unit(_0),_1)) -> flatten^#(_1), flatten^#(flatten(_0)) -> flatten^#(_0)] TRS = {flatten(nil) -> nil, flatten(unit(_0)) -> flatten(_0), flatten(++(_0,_1)) -> ++(flatten(_0),flatten(_1)), flatten(++(unit(_0),_1)) -> ++(flatten(_0),flatten(_1)), flatten(flatten(_0)) -> flatten(_0), rev(nil) -> nil, rev(unit(_0)) -> unit(_0), rev(++(_0,_1)) -> ++(rev(_1),rev(_0)), rev(rev(_0)) -> _0, ++(_0,nil) -> _0, ++(nil,_0) -> _0, ++(++(_0,_1),_2) -> ++(_0,++(_1,_2))} ## Trying with homeomorphic embeddings... Success! This DP problem is finite. ## DP problem: Dependency pairs = [++^#(++(_0,_1),_2) -> ++^#(_0,++(_1,_2)), ++^#(++(_0,_1),_2) -> ++^#(_1,_2)] TRS = {flatten(nil) -> nil, flatten(unit(_0)) -> flatten(_0), flatten(++(_0,_1)) -> ++(flatten(_0),flatten(_1)), flatten(++(unit(_0),_1)) -> ++(flatten(_0),flatten(_1)), flatten(flatten(_0)) -> flatten(_0), rev(nil) -> nil, rev(unit(_0)) -> unit(_0), rev(++(_0,_1)) -> ++(rev(_1),rev(_0)), rev(rev(_0)) -> _0, ++(_0,nil) -> _0, ++(nil,_0) -> _0, ++(++(_0,_1),_2) -> ++(_0,++(_1,_2))} ## Trying with homeomorphic embeddings... Failed! ## Trying with polynomial interpretations... The constraints are satisfied by the polynomials: {flatten(_0):[_0], unit(_0):[_0], ++(_0,_1):[_0 * _1], nil:[2], rev(_0):[_0], ++^#(_0,_1):[_0]} for all instantiations of the variables with values greater than or equal to mu = 2. This DP problem is finite. ** END proof description ** Proof stopped at iteration 0 Number of unfolded rules generated by this proof = 0 Number of unfolded rules generated by all the parallel proofs = 300 popout

output may be truncated. 'popout' for the full output.

job log

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actions

all output return to TRS Standard