details

property	value
status	complete
benchmark	#4.4.xml
ran by	Akihisa Yamada
cpu timeout	1200 seconds
wallclock timeout	300 seconds
memory limit	137438953472 bytes
execution host	n174.star.cs.uiowa.edu
space	Strategy_removed_AG01

run statistics

property	value
solver	NTI-TC20-firstrun
configuration	Default 200
runtime (wallclock)	0.189374 seconds
cpu usage	0.253229
user time	0.199891
system time	0.053338
max virtual memory	113188.0
max residence set size	55640.0

stage attributes

key	value
starexec-result	NO

output

NO Prover = TRS(tech=GUIDED_UNF, nb_unfoldings=unlimited, unfold_variables=true, strategy=LEFTMOST_NE) ** BEGIN proof argument ** The following rule was generated while unfolding the analyzed TRS: [iteration = 3] f(g(g(g(_0))),g(g(_0)),g(g(g(_0)))) -> f(g(g(g(_0))),g(g(_0)),g(g(g(_0)))) Let l be the left-hand side and r be the right-hand side of this rule. Let p = epsilon, theta1 = {} and theta2 = {}. We have r|p = f(g(g(g(_0))),g(g(_0)),g(g(g(_0)))) and theta2(theta1(l)) = theta1(r|p). Hence, the term theta1(l) = f(g(g(g(_0))),g(g(_0)),g(g(g(_0)))) loops w.r.t. the analyzed TRS. ** 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! ## Searching for a loop by unfolding (unfolding of variable subterms: ON)... # Iteration 0: no loop detected, 1 unfolded rule generated. # Iteration 1: no loop detected, 3 unfolded rules generated. # Iteration 2: no loop detected, 8 unfolded rules generated. # Iteration 3: loop detected, 1 unfolded rule generated. Here is the successful unfolding. Let IR be the TRS under analysis. L0 = f^#(g(_0),_0,_1) -> f^#(_1,_1,g(_1)) is in U_IR^0. Let p0 = [0]. The subterm at position p0 in the left-hand side of the rule of L0 unifies with the subterm at position p0 in the right-hand side of the rule of L0. ==> L1 = f^#(g(_0),_0,g(_0)) -> f^#(g(_0),g(_0),g(g(_0))) is in U_IR^1. Let p1 = [1]. We unfold the rule of L1 forwards at position p1 with the rule g(g(_0)) -> g(_0). ==> L2 = f^#(g(g(_0)),g(_0),g(g(_0))) -> f^#(g(g(_0)),g(_0),g(g(g(_0)))) is in U_IR^2. Let p2 = [2, 0, 0]. We unfold the rule of L2 forwards at position p2 with the rule g(g(_0)) -> g(_0). ==> L3 = f^#(g(g(g(_0))),g(g(_0)),g(g(g(_0)))) -> f^#(g(g(g(_0))),g(g(_0)),g(g(g(_0)))) is in U_IR^3. ** END proof description ** Proof stopped at iteration 3 Number of unfolded rules generated by this proof = 13 Number of unfolded rules generated by all the parallel proofs = 13 popout

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job log

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actions

all output return to TRS Standard