25.018/25.018 NO 25.018/25.018 25.018/25.018 Problem 1: 25.018/25.018 25.018/25.018 25.018/25.018 ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 25.018/25.018 Confluence Problem: 25.018/25.018 (VAR vNonEmpty:S x:S y:S) 25.018/25.018 (STRATEGY CONTEXTSENSITIVE 25.018/25.018 (a) 25.018/25.018 (f 1) 25.018/25.018 (g 1) 25.018/25.018 (b) 25.018/25.018 (c 1 2) 25.018/25.018 (fSNonEmpty) 25.018/25.018 (h 1) 25.018/25.018 ) 25.018/25.018 (RULES 25.018/25.018 a -> b 25.018/25.018 f(x:S) -> c(x:S,y:S) | g(x:S) ->* y:S, y:S ->* h(x:S) 25.018/25.018 g(a) -> h(b) 25.018/25.018 ) 25.018/25.018 ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 25.018/25.018 25.018/25.018 25.018/25.018 Problem 1: 25.018/25.018 25.018/25.018 Inlining of Conditions Processor [STERN17]: 25.018/25.018 25.018/25.018 ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 25.018/25.018 Confluence Problem: 25.018/25.018 (VAR vNonEmpty:S x:S y:S) 25.018/25.018 (STRATEGY CONTEXTSENSITIVE 25.018/25.018 (a) 25.018/25.018 (f 1) 25.018/25.018 (g 1) 25.018/25.018 (b) 25.018/25.018 (c 1 2) 25.018/25.018 (fSNonEmpty) 25.018/25.018 (h 1) 25.018/25.018 ) 25.018/25.018 (RULES 25.018/25.018 a -> b 25.018/25.018 f(x:S) -> c(x:S,g(x:S)) | g(x:S) ->* h(x:S) 25.018/25.018 g(a) -> h(b) 25.018/25.018 ) 25.018/25.018 ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 25.018/25.018 25.018/25.018 25.018/25.018 Problem 1: 25.018/25.018 25.018/25.018 Clean CTRS Processor: 25.018/25.018 25.018/25.018 ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 25.018/25.018 Confluence Problem: 25.018/25.018 (STRATEGY CONTEXTSENSITIVE 25.018/25.018 (a) 25.018/25.018 (f 1) 25.018/25.018 (g 1) 25.018/25.018 (b) 25.018/25.018 (c 1 2) 25.018/25.018 (fSNonEmpty) 25.018/25.018 (h 1) 25.018/25.018 ) 25.018/25.018 (RULES 25.018/25.018 a -> b 25.018/25.018 g(a) -> h(b) 25.018/25.018 ) 25.018/25.018 ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 25.018/25.018 25.018/25.018 CRule InfChecker Info: 25.018/25.018 a -> b 25.018/25.018 Rule remains 25.018/25.018 Proof: 25.018/25.018 NO_CONDS 25.018/25.018 25.018/25.018 CRule InfChecker Info: 25.018/25.018 f(x:S) -> c(x:S,g(x:S)) | g(x:S) ->* h(x:S) 25.018/25.018 Rule deleted 25.018/25.018 Proof: 25.018/25.018 YES 25.018/25.018 25.018/25.018 Problem 1: 25.018/25.018 25.018/25.018 Infeasibility Problem: 25.018/25.018 [(VAR vNonEmpty:S vNonEmpty:S:S x:S:S y:S:S) 25.018/25.018 (STRATEGY CONTEXTSENSITIVE 25.018/25.018 (a) 25.018/25.018 (f 1) 25.018/25.018 (g 1) 25.018/25.018 (b) 25.018/25.018 (c 1 2) 25.018/25.018 (fSNonEmpty) 25.018/25.018 (h 1) 25.018/25.018 ) 25.018/25.018 (RULES 25.018/25.018 a -> b 25.018/25.018 f(x:S:S) -> c(x:S:S,g(x:S:S)) | g(x:S:S) ->* h(x:S:S) 25.018/25.018 g(a) -> h(b) 25.018/25.018 )] 25.018/25.018 25.018/25.018 Infeasibility Conditions: 25.018/25.018 g(x:S:S) ->* h(x:S:S) 25.018/25.018 25.018/25.018 Problem 1: 25.018/25.018 25.018/25.018 Obtaining a model using Mace4: 25.018/25.018 25.018/25.018 -> Usable Rules: 25.018/25.018 a -> b 25.018/25.018 f(x:S:S) -> c(x:S:S,g(x:S:S)) | g(x:S:S) ->* h(x:S:S) 25.018/25.018 g(a) -> h(b) 25.018/25.018 25.018/25.018 -> Mace4 Output: 25.018/25.018 ============================== Mace4 ================================= 25.018/25.018 Mace4 (64) version 2009-11A, November 2009. 25.018/25.018 Process 103291 was started by ubuntu on ubuntu, 25.018/25.018 Fri Jul 16 14:44:23 2021 25.018/25.018 The command was "./mace4 -c -f /tmp/mace4103278-2.in". 25.018/25.018 ============================== end of head =========================== 25.018/25.018 25.018/25.018 ============================== INPUT ================================= 25.018/25.018 25.018/25.018 % Reading from file /tmp/mace4103278-2.in 25.018/25.018 25.018/25.018 assign(max_seconds,10). 25.018/25.018 25.018/25.018 formulas(assumptions). 25.018/25.018 ->(x1,y) -> ->(f(x1),f(y)) # label(congruence). 25.018/25.018 ->(x1,y) -> ->(g(x1),g(y)) # label(congruence). 25.018/25.018 ->(x1,y) -> ->(c(x1,x2),c(y,x2)) # label(congruence). 25.018/25.018 ->(x2,y) -> ->(c(x1,x2),c(x1,y)) # label(congruence). 25.018/25.018 ->(x1,y) -> ->(h(x1),h(y)) # label(congruence). 25.018/25.018 ->(a,b) # label(replacement). 25.018/25.018 ->*(g(x2),h(x2)) -> ->(f(x2),c(x2,g(x2))) # label(replacement). 25.018/25.018 ->(g(a),h(b)) # label(replacement). 25.018/25.018 ->*(x,x) # label(reflexivity). 25.018/25.018 ->(x,y) & ->*(y,z) -> ->*(x,z) # label(transitivity). 25.018/25.018 end_of_list. 25.018/25.018 25.018/25.018 formulas(goals). 25.018/25.018 (exists x2 ->*(g(x2),h(x2))) # label(goal). 25.018/25.018 end_of_list. 25.018/25.018 25.018/25.018 ============================== end of input ========================== 25.018/25.018 25.018/25.018 ============================== PROCESS NON-CLAUSAL FORMULAS ========== 25.018/25.018 25.018/25.018 % Formulas that are not ordinary clauses: 25.018/25.018 1 ->(x1,y) -> ->(f(x1),f(y)) # label(congruence) # label(non_clause). [assumption]. 25.018/25.018 2 ->(x1,y) -> ->(g(x1),g(y)) # label(congruence) # label(non_clause). [assumption]. 25.018/25.018 3 ->(x1,y) -> ->(c(x1,x2),c(y,x2)) # label(congruence) # label(non_clause). [assumption]. 25.018/25.018 4 ->(x2,y) -> ->(c(x1,x2),c(x1,y)) # label(congruence) # label(non_clause). [assumption]. 25.018/25.018 5 ->(x1,y) -> ->(h(x1),h(y)) # label(congruence) # label(non_clause). [assumption]. 25.018/25.018 6 ->*(g(x2),h(x2)) -> ->(f(x2),c(x2,g(x2))) # label(replacement) # label(non_clause). [assumption]. 25.018/25.018 7 ->(x,y) & ->*(y,z) -> ->*(x,z) # label(transitivity) # label(non_clause). [assumption]. 25.018/25.018 8 (exists x2 ->*(g(x2),h(x2))) # label(goal) # label(non_clause) # label(goal). [goal]. 25.018/25.018 25.018/25.018 ============================== end of process non-clausal formulas === 25.018/25.018 25.018/25.018 ============================== CLAUSES FOR SEARCH ==================== 25.018/25.018 25.018/25.018 formulas(mace4_clauses). 25.018/25.018 -->(x,y) | ->(f(x),f(y)) # label(congruence). 25.018/25.018 -->(x,y) | ->(g(x),g(y)) # label(congruence). 25.018/25.018 -->(x,y) | ->(c(x,z),c(y,z)) # label(congruence). 25.018/25.018 -->(x,y) | ->(c(z,x),c(z,y)) # label(congruence). 25.018/25.018 -->(x,y) | ->(h(x),h(y)) # label(congruence). 25.018/25.018 ->(a,b) # label(replacement). 25.018/25.018 -->*(g(x),h(x)) | ->(f(x),c(x,g(x))) # label(replacement). 25.018/25.018 ->(g(a),h(b)) # label(replacement). 25.018/25.018 ->*(x,x) # label(reflexivity). 25.018/25.018 -->(x,y) | -->*(y,z) | ->*(x,z) # label(transitivity). 25.018/25.018 -->*(g(x),h(x)) # label(goal). 25.018/25.018 end_of_list. 25.018/25.018 25.018/25.018 ============================== end of clauses for search ============= 25.018/25.018 25.018/25.018 % There are no natural numbers in the input. 25.018/25.018 25.018/25.018 ============================== DOMAIN SIZE 2 ========================= 25.018/25.018 25.018/25.018 ============================== STATISTICS ============================ 25.018/25.018 25.018/25.018 For domain size 2. 25.018/25.018 25.018/25.018 Current CPU time: 0.00 seconds (total CPU time: 0.00 seconds). 25.018/25.018 Ground clauses: seen=44, kept=40. 25.018/25.018 Selections=8, assignments=15, propagations=35, current_models=0. 25.018/25.018 Rewrite_terms=149, rewrite_bools=113, indexes=38. 25.018/25.018 Rules_from_neg_clauses=13, cross_offs=13. 25.018/25.018 25.018/25.018 ============================== end of statistics ===================== 25.018/25.018 25.018/25.018 ============================== DOMAIN SIZE 3 ========================= 25.018/25.018 25.018/25.018 ============================== MODEL ================================= 25.018/25.018 25.018/25.018 interpretation( 3, [number=1, seconds=0], [ 25.018/25.018 25.018/25.018 function(a, [ 0 ]), 25.018/25.018 25.018/25.018 function(b, [ 1 ]), 25.018/25.018 25.018/25.018 function(f(_), [ 0, 0, 0 ]), 25.018/25.018 25.018/25.018 function(g(_), [ 0, 1, 0 ]), 25.018/25.018 25.018/25.018 function(h(_), [ 2, 0, 2 ]), 25.018/25.018 25.018/25.018 function(c(_,_), [ 25.018/25.018 0, 0, 0, 25.018/25.018 0, 0, 0, 25.018/25.018 0, 0, 0 ]), 25.018/25.018 25.018/25.018 relation(->*(_,_), [ 25.018/25.018 1, 1, 0, 25.018/25.018 0, 1, 0, 25.018/25.018 1, 1, 1 ]), 25.018/25.018 25.018/25.018 relation(->(_,_), [ 25.018/25.018 1, 1, 0, 25.018/25.018 0, 0, 0, 25.018/25.018 1, 0, 1 ]) 25.018/25.018 ]). 25.018/25.018 25.018/25.018 ============================== end of model ========================== 25.018/25.018 25.018/25.018 ============================== STATISTICS ============================ 25.018/25.018 25.018/25.018 For domain size 3. 25.018/25.018 25.018/25.018 Current CPU time: 0.00 seconds (total CPU time: 0.00 seconds). 25.018/25.018 Ground clauses: seen=119, kept=110. 25.018/25.018 Selections=24, assignments=39, propagations=49, current_models=1. 25.018/25.018 Rewrite_terms=355, rewrite_bools=323, indexes=50. 25.018/25.018 Rules_from_neg_clauses=7, cross_offs=27. 25.018/25.018 25.018/25.018 ============================== end of statistics ===================== 25.018/25.018 25.018/25.018 User_CPU=0.00, System_CPU=0.00, Wall_clock=0. 25.018/25.018 25.018/25.018 Exiting with 1 model. 25.018/25.018 25.018/25.018 Process 103291 exit (max_models) Fri Jul 16 14:44:23 2021 25.018/25.018 The process finished Fri Jul 16 14:44:23 2021 25.018/25.018 25.018/25.018 25.018/25.018 Mace4 cooked interpretation: 25.018/25.018 25.018/25.018 25.018/25.018 25.018/25.018 The problem is infeasible. 25.018/25.018 25.018/25.018 25.018/25.018 CRule InfChecker Info: 25.018/25.018 g(a) -> h(b) 25.018/25.018 Rule remains 25.018/25.018 Proof: 25.018/25.018 NO_CONDS 25.018/25.018 25.018/25.018 Problem 1: 25.018/25.018 25.018/25.018 Transform No Conds CTRS Processor: 25.018/25.018 25.018/25.018 ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 25.018/25.018 Confluence Problem: 25.018/25.018 (STRATEGY CONTEXTSENSITIVE 25.018/25.018 (a) 25.018/25.018 (f 1) 25.018/25.018 (g 1) 25.018/25.018 (b) 25.018/25.018 (c 1 2) 25.018/25.018 (fSNonEmpty) 25.018/25.018 (h 1) 25.018/25.018 ) 25.018/25.018 (RULES 25.018/25.018 a -> b 25.018/25.018 g(a) -> h(b) 25.018/25.018 ) 25.018/25.018 ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 25.018/25.018 Resulting R: 25.018/25.018 (STRATEGY CONTEXTSENSITIVE 25.018/25.018 (a) 25.018/25.018 (f 1) 25.018/25.018 (g 1) 25.018/25.018 (b) 25.018/25.018 (c 1 2) 25.018/25.018 (fSNonEmpty) 25.018/25.018 (h 1) 25.018/25.018 ) 25.018/25.018 (RULES 25.018/25.018 a -> b 25.018/25.018 g(a) -> h(b) 25.018/25.018 ) 25.018/25.018 25.018/25.018 Problem 1: 25.018/25.018 25.018/25.018 CleanTRS Processor: 25.018/25.018 25.018/25.018 ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 25.018/25.018 Confluence Problem: 25.018/25.018 (STRATEGY CONTEXTSENSITIVE 25.018/25.018 (a) 25.018/25.018 (f 1) 25.018/25.018 (g 1) 25.018/25.018 (b) 25.018/25.018 (c 1 2) 25.018/25.018 (fSNonEmpty) 25.018/25.018 (h 1) 25.018/25.018 ) 25.018/25.018 (RULES 25.018/25.018 a -> b 25.018/25.018 g(a) -> h(b) 25.018/25.018 ) 25.018/25.018 ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 25.018/25.018 25.018/25.018 25.018/25.018 Problem 1: 25.018/25.018 25.018/25.018 Modular Confluence Combinations Decomposition Processor: 25.018/25.018 25.018/25.018 No usable combinations 25.018/25.018 25.018/25.018 Problem 1: 25.018/25.018 ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 25.018/25.018 Confluence Problem: 25.018/25.018 (STRATEGY CONTEXTSENSITIVE 25.018/25.018 (a) 25.018/25.018 (f 1) 25.018/25.018 (g 1) 25.018/25.018 (b) 25.018/25.018 (c 1 2) 25.018/25.018 (fSNonEmpty) 25.018/25.018 (h 1) 25.018/25.018 ) 25.018/25.018 (RULES 25.018/25.018 a -> b 25.018/25.018 g(a) -> h(b) 25.018/25.018 ) 25.018/25.018 ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 25.018/25.018 25.018/25.018 Huet Levy Processor: 25.018/25.018 -> Rules: 25.018/25.018 a -> b 25.018/25.018 g(a) -> h(b) 25.018/25.018 -> Vars: 25.018/25.018 25.018/25.018 -> FVars: 25.018/25.018 25.018/25.018 -> PVars: 25.018/25.018 25.018/25.018 25.018/25.018 -> Rlps: 25.018/25.018 (rule: a -> b, id: 1, possubterms: a->[]) 25.018/25.018 (rule: g(a) -> h(b), id: 2, possubterms: g(a)->[], a->[1]) 25.018/25.018 25.018/25.018 -> Unifications: 25.018/25.018 (R2 unifies with R1 at p: [1], l: g(a), lp: a, sig: {}, l': a, r: h(b), r': b) 25.018/25.018 25.018/25.018 -> Critical pairs info: 25.018/25.018 => Not trivial, Not overlay, N1 25.018/25.018 25.018/25.018 -> Problem conclusions: 25.018/25.018 Left linear, Right linear, Linear 25.018/25.018 Not weakly orthogonal, Not almost orthogonal, Not orthogonal 25.018/25.018 Not Huet-Levy confluent, Not Newman confluent 25.018/25.018 R is a TRS 25.018/25.018 25.018/25.018 25.018/25.018 Problem 1: 25.018/25.018 Different Normal CP Terms Processor: 25.018/25.018 => Not trivial, Not overlay, N1, Normal and not trivial cp 25.018/25.018 25.018/25.018 The problem is not joinable. 25.018/25.018 19.80user 0.99system 0:25.18elapsed 82%CPU (0avgtext+0avgdata 72332maxresident)k 25.018/25.018 8inputs+0outputs (0major+41179minor)pagefaults 0swaps