TSTP Solution File: GRP459-1 by CiME---2.01

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%------------------------------------------------------------------------------
% File     : CiME---2.01
% Problem  : GRP459-1 : TPTP v6.0.0. Released v2.6.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_cime %s

% Computer : n048.star.cs.uiowa.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2609 0 2.40GHz
% Memory   : 32286.75MB
% OS       : Linux 2.6.32-431.11.2.el6.x86_64
% CPULimit : 300s
% DateTime : Tue Jun 10 00:23:13 EDT 2014

% Result   : Unsatisfiable 1.24s
% Output   : Refutation 1.24s
% Verified : 
% SZS Type : None (Parsing solution fails)
% Syntax   : Number of formulae    : 0

% Comments : 
%------------------------------------------------------------------------------
%----ERROR: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% % Problem  : GRP459-1 : TPTP v6.0.0. Released v2.6.0.
% % Command  : tptp2X_and_run_cime %s
% % Computer : n048.star.cs.uiowa.edu
% % Model    : x86_64 x86_64
% % CPU      : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz
% % Memory   : 32286.75MB
% % OS       : Linux 2.6.32-431.11.2.el6.x86_64
% % CPULimit : 300
% % DateTime : Fri Jun  6 13:53:33 CDT 2014
% % CPUTime  : 1.24 
% Processing problem /tmp/CiME_26286_n048.star.cs.uiowa.edu
% #verbose 1;
% let F = signature " c3,b3,a3,identity : constant;  inverse : 1;  multiply : 2;  divide : 2;";
% let X = vars "A B C";
% let Axioms = equations F X "
% divide(divide(divide(A,A),divide(A,divide(B,divide(divide(identity,A),C)))),C) = B;
% multiply(A,B) = divide(A,divide(identity,B));
% inverse(A) = divide(identity,A);
% identity = divide(A,A);
% ";
% 
% let s1 = status F "
% c3 lr_lex;
% b3 lr_lex;
% a3 lr_lex;
% inverse lr_lex;
% multiply lr_lex;
% identity lr_lex;
% divide lr_lex;
% ";
% 
% let p1 = precedence F "
% multiply > inverse > divide > identity > a3 > b3 > c3";
% 
% let s2 = status F "
% c3 mul;
% b3 mul;
% a3 mul;
% inverse mul;
% multiply mul;
% identity mul;
% divide mul;
% ";
% 
% let p2 = precedence F "
% multiply > inverse > divide > identity = a3 = b3 = c3";
% 
% let o_auto = AUTO Axioms;
% 
% let o = LEX o_auto (LEX (ACRPO s1 p1) (ACRPO s2 p2));
% 
% let Conjectures = equations F X " multiply(multiply(a3,b3),c3) = multiply(a3,multiply(b3,c3));"
% ;
% (*
% let Red_Axioms = normalize_equations Defining_rules Axioms;
% 
% let Red_Conjectures =  normalize_equations Defining_rules Conjectures;
% *)
% #time on;
% 
% let res = prove_conj_by_ordered_completion o Axioms Conjectures;
% 
% #time off;
% 
% 
% let status = if res then "unsatisfiable" else "satisfiable";
% #quit;
% Verbose level is now 1
% 
% F : signature = <signature>
% X : variable_set = <variable set>
% 
% Axioms : (F,X) equations = { divide(divide(divide(A,A),divide(A,divide(B,
% divide(
% divide(identity,A),C)))),C)
% = B,
% multiply(A,B) = divide(A,divide(identity,B)),
% inverse(A) = divide(identity,A),
% identity = divide(A,A) } (4 equation(s))
% s1 : F status = <status>
% p1 : F precedence = <precedence>
% s2 : F status = <status>
% p2 : F precedence = <precedence>
% o_auto : F term_ordering = <term ordering>
% o : F term_ordering = <term ordering>
% Conjectures : (F,X) equations = { multiply(multiply(a3,b3),c3) =
% multiply(a3,multiply(b3,c3)) }
% (1 equation(s))
% time is now on
% 
% Initializing completion ...
% New rule produced : [1] divide(A,A) -> identity
% Current number of equations to process: 1
% Current number of ordered equations: 2
% Current number of rules: 1
% New rule produced : [2] inverse(A) -> divide(identity,A)
% Current number of equations to process: 0
% Current number of ordered equations: 2
% Current number of rules: 2
% New rule produced : [3] multiply(A,B) -> divide(A,divide(identity,B))
% The conjecture has been reduced. 
% Conjecture is now:
% divide(divide(a3,divide(identity,b3)),divide(identity,c3)) = divide(a3,
% divide(identity,
% divide(b3,
% divide(identity,c3))))
% 
% Current number of equations to process: 0
% Current number of ordered equations: 1
% Current number of rules: 3
% New rule produced :
% [4]
% divide(divide(identity,divide(A,divide(B,divide(divide(identity,A),C)))),C)
% -> B
% Current number of equations to process: 0
% Current number of ordered equations: 0
% Current number of rules: 4
% New rule produced :
% [5]
% divide(divide(identity,divide(A,identity)),B) -> divide(divide(identity,A),B)
% Current number of equations to process: 4
% Current number of ordered equations: 0
% Current number of rules: 5
% New rule produced :
% [6]
% divide(divide(identity,A),divide(identity,divide(A,identity))) -> identity
% Current number of equations to process: 5
% Current number of ordered equations: 0
% Current number of rules: 6
% New rule produced :
% [7]
% divide(divide(identity,divide(identity,divide(A,divide(identity,B)))),B) -> A
% Current number of equations to process: 3
% Current number of ordered equations: 1
% Current number of rules: 7
% New rule produced :
% [8]
% divide(divide(identity,divide(A,divide(B,identity))),divide(identity,A)) -> B
% Current number of equations to process: 3
% Current number of ordered equations: 0
% Current number of rules: 8
% New rule produced :
% [9] divide(identity,divide(A,identity)) -> divide(identity,A)
% Rule
% [5]
% divide(divide(identity,divide(A,identity)),B) -> divide(divide(identity,A),B)
% collapsed.
% Rule
% [6]
% divide(divide(identity,A),divide(identity,divide(A,identity))) -> identity
% collapsed.
% Current number of equations to process: 6
% Current number of ordered equations: 0
% Current number of rules: 7
% New rule produced :
% [10] divide(divide(identity,divide(identity,A)),identity) -> A
% Current number of equations to process: 6
% Current number of ordered equations: 0
% Current number of rules: 8
% New rule produced : [11] divide(identity,divide(identity,A)) -> A
% Rule
% [7]
% divide(divide(identity,divide(identity,divide(A,divide(identity,B)))),B) -> A
% collapsed.
% Rule [10] divide(divide(identity,divide(identity,A)),identity) -> A
% collapsed.
% Current number of equations to process: 11
% Current number of ordered equations: 0
% Current number of rules: 7
% New rule produced : [12] divide(A,identity) -> A
% Rule
% [8]
% divide(divide(identity,divide(A,divide(B,identity))),divide(identity,A)) -> B
% collapsed.
% Rule [9] divide(identity,divide(A,identity)) -> divide(identity,A) collapsed.
% Current number of equations to process: 11
% Current number of ordered equations: 0
% Current number of rules: 6
% New rule produced : [13] divide(divide(A,divide(identity,B)),B) -> A
% Current number of equations to process: 10
% Current number of ordered equations: 0
% Current number of rules: 7
% New rule produced :
% [14] divide(divide(identity,divide(A,B)),divide(identity,A)) -> B
% Current number of equations to process: 9
% Current number of ordered equations: 0
% Current number of rules: 8
% New rule produced :
% [15] divide(identity,divide(A,divide(B,divide(identity,A)))) -> B
% Current number of equations to process: 10
% Current number of ordered equations: 0
% Current number of rules: 9
% New rule produced : [16] divide(divide(A,B),divide(identity,B)) -> A
% Current number of equations to process: 12
% Current number of ordered equations: 0
% Current number of rules: 10
% New rule produced : [17] divide(A,B) <-> divide(identity,divide(B,A))
% Rule
% [4]
% divide(divide(identity,divide(A,divide(B,divide(divide(identity,A),C)))),C)
% -> B collapsed.
% Rule [13] divide(divide(A,divide(identity,B)),B) -> A collapsed.
% Rule [14] divide(divide(identity,divide(A,B)),divide(identity,A)) -> B
% collapsed.
% The conjecture has been reduced. 
% Conjecture is now:
% divide(identity,divide(divide(identity,c3),divide(a3,divide(identity,b3)))) = 
% divide(a3,divide(identity,divide(b3,divide(identity,c3))))
% 
% Current number of equations to process: 19
% Current number of ordered equations: 0
% Current number of rules: 8
% New rule produced :
% [18]
% divide(identity,divide(C,divide(identity,divide(A,divide(B,divide(divide(identity,A),C))))))
% -> B
% Current number of equations to process: 18
% Current number of ordered equations: 0
% Current number of rules: 9
% New rule produced :
% [19] divide(divide(identity,A),divide(B,A)) -> divide(identity,B)
% Current number of equations to process: 19
% Current number of ordered equations: 0
% Current number of rules: 10
% New rule produced :
% [20] divide(B,divide(A,divide(identity,B))) <-> divide(identity,A)
% Current number of equations to process: 18
% Current number of ordered equations: 1
% Current number of rules: 11
% New rule produced :
% [21] divide(identity,A) <-> divide(B,divide(A,divide(identity,B)))
% The conjecture has been reduced. 
% Conjecture is now:
% divide(identity,divide(divide(identity,c3),divide(a3,divide(c3,divide(b3,
% divide(identity,c3)))))) = 
% divide(a3,divide(identity,divide(b3,divide(identity,c3))))
% 
% Current number of equations to process: 18
% Current number of ordered equations: 0
% Current number of rules: 12
% New rule produced :
% [22]
% divide(identity,divide(A,divide(identity,divide(divide(identity,A),B)))) -> B
% Current number of equations to process: 21
% Current number of ordered equations: 0
% Current number of rules: 13
% New rule produced :
% [23]
% divide(identity,divide(divide(identity,A),divide(identity,divide(A,B)))) -> B
% Current number of equations to process: 19
% Current number of ordered equations: 0
% Current number of rules: 14
% New rule produced :
% [24]
% divide(divide(identity,A),divide(identity,divide(A,divide(identity,B)))) -> B
% Current number of equations to process: 18
% Current number of ordered equations: 0
% Current number of rules: 15
% New rule produced :
% [25]
% divide(divide(identity,divide(A,B)),C) ->
% divide(B,divide(identity,divide(divide(identity,A),C)))
% Current number of equations to process: 15
% Current number of ordered equations: 0
% Current number of rules: 16
% New rule produced :
% [26]
% divide(divide(identity,A),divide(B,divide(A,divide(divide(identity,B),C))))
% -> C
% Current number of equations to process: 12
% Current number of ordered equations: 0
% Current number of rules: 17
% New rule produced :
% [27]
% divide(identity,divide(divide(A,divide(B,divide(identity,A))),divide(C,B)))
% -> C
% Current number of equations to process: 11
% Current number of ordered equations: 0
% Current number of rules: 18
% New rule produced :
% [28]
% divide(identity,divide(A,divide(B,divide(C,divide(A,divide(identity,C))))))
% -> B
% Current number of equations to process: 10
% Current number of ordered equations: 0
% Current number of rules: 19
% New rule produced :
% [29]
% divide(identity,divide(C,divide(A,divide(divide(identity,C),divide(identity,B)))))
% -> divide(A,B)
% Current number of equations to process: 8
% Current number of ordered equations: 0
% Current number of rules: 20
% New rule produced :
% [30]
% divide(divide(identity,A),divide(identity,divide(A,B))) -> divide(identity,B)
% Rule
% [23]
% divide(identity,divide(divide(identity,A),divide(identity,divide(A,B)))) -> B
% collapsed.
% Rule
% [24]
% divide(divide(identity,A),divide(identity,divide(A,divide(identity,B)))) -> B
% collapsed.
% Current number of equations to process: 17
% Current number of ordered equations: 0
% Current number of rules: 19
% New rule produced :
% [31]
% divide(A,divide(identity,divide(divide(identity,A),B))) -> divide(identity,B)
% Rule
% [22]
% divide(identity,divide(A,divide(identity,divide(divide(identity,A),B)))) -> B
% collapsed.
% Current number of equations to process: 20
% Current number of ordered equations: 0
% Current number of rules: 19
% New rule produced :
% [32] divide(divide(A,B),divide(C,divide(B,divide(identity,C)))) -> A
% Current number of equations to process: 21
% Current number of ordered equations: 1
% Current number of rules: 20
% New rule produced :
% [33]
% divide(divide(A,divide(B,divide(identity,A))),divide(identity,B)) -> identity
% Current number of equations to process: 21
% Current number of ordered equations: 0
% Current number of rules: 21
% New rule produced :
% [34]
% divide(A,divide(identity,divide(divide(identity,B),C))) <->
% divide(divide(A,B),C)
% Current number of equations to process: 26
% Current number of ordered equations: 1
% Current number of rules: 22
% New rule produced :
% [35]
% divide(divide(A,B),C) <->
% divide(A,divide(identity,divide(divide(identity,B),C)))
% Current number of equations to process: 26
% Current number of ordered equations: 0
% Current number of rules: 23
% New rule produced :
% [36]
% divide(A,divide(B,divide(C,divide(A,divide(identity,C))))) <->
% divide(identity,B)
% Current number of equations to process: 25
% Current number of ordered equations: 1
% Current number of rules: 24
% New rule produced :
% [37]
% divide(identity,B) <->
% divide(A,divide(B,divide(C,divide(A,divide(identity,C)))))
% Current number of equations to process: 25
% Current number of ordered equations: 0
% Current number of rules: 25
% New rule produced :
% [38]
% divide(divide(A,divide(B,divide(identity,A))),divide(C,B)) ->
% divide(identity,C)
% Rule
% [27]
% divide(identity,divide(divide(A,divide(B,divide(identity,A))),divide(C,B)))
% -> C collapsed.
% Rule
% [33]
% divide(divide(A,divide(B,divide(identity,A))),divide(identity,B)) -> identity
% collapsed.
% Current number of equations to process: 24
% Current number of ordered equations: 0
% Current number of rules: 24
% New rule produced :
% [39]
% divide(identity,divide(A,divide(identity,divide(B,C)))) <->
% divide(C,divide(identity,divide(divide(identity,B),A)))
% Current number of equations to process: 22
% Current number of ordered equations: 1
% Current number of rules: 25
% New rule produced :
% [40]
% divide(C,divide(identity,divide(divide(identity,B),A))) <->
% divide(identity,divide(A,divide(identity,divide(B,C))))
% Current number of equations to process: 22
% Current number of ordered equations: 0
% Current number of rules: 26
% New rule produced :
% [41] divide(divide(A,C),divide(identity,divide(C,B))) -> divide(A,B)
% Rule
% [30]
% divide(divide(identity,A),divide(identity,divide(A,B))) -> divide(identity,B)
% collapsed.
% Current number of equations to process: 28
% Current number of ordered equations: 0
% Current number of rules: 26
% New rule produced :
% [42]
% divide(A,divide(B,divide(divide(identity,A),divide(divide(identity,B),C))))
% -> C
% Current number of equations to process: 33
% Current number of ordered equations: 1
% Current number of rules: 27
% New rule produced :
% [43]
% divide(divide(identity,A),divide(divide(identity,B),divide(A,divide(B,C))))
% -> C
% Current number of equations to process: 33
% Current number of ordered equations: 0
% Current number of rules: 28
% New rule produced :
% [44]
% divide(divide(identity,A),divide(B,divide(A,divide(identity,C)))) <->
% divide(C,B)
% Current number of equations to process: 38
% Current number of ordered equations: 1
% Current number of rules: 29
% New rule produced :
% [45]
% divide(C,B) <->
% divide(divide(identity,A),divide(B,divide(A,divide(identity,C))))
% Current number of equations to process: 38
% Current number of ordered equations: 0
% Current number of rules: 30
% New rule produced :
% [46] divide(identity,divide(divide(A,B),divide(C,divide(B,A)))) -> C
% Current number of equations to process: 44
% Current number of ordered equations: 0
% Current number of rules: 31
% New rule produced :
% [47]
% divide(divide(identity,A),divide(B,divide(A,C))) <->
% divide(V_3,divide(B,divide(divide(identity,V_3),C)))
% The conjecture has been reduced. 
% Conjecture is now:
% divide(identity,divide(c3,divide(a3,divide(divide(identity,c3),divide(b3,
% divide(identity,c3)))))) = 
% divide(a3,divide(identity,divide(b3,divide(identity,c3))))
% 
% Current number of equations to process: 43
% Current number of ordered equations: 1
% Current number of rules: 32
% New rule produced :
% [48]
% divide(V_3,divide(B,divide(divide(identity,V_3),C))) <->
% divide(divide(identity,A),divide(B,divide(A,C)))
% Current number of equations to process: 43
% Current number of ordered equations: 0
% Current number of rules: 33
% New rule produced :
% [49]
% divide(identity,divide(A,divide(B,divide(divide(identity,A),C)))) ->
% divide(B,divide(identity,C))
% Rule
% [18]
% divide(identity,divide(C,divide(identity,divide(A,divide(B,divide(divide(identity,A),C))))))
% -> B collapsed.
% Rule
% [29]
% divide(identity,divide(C,divide(A,divide(divide(identity,C),divide(identity,B)))))
% -> divide(A,B) collapsed.
% The conjecture has been reduced. 
% Conjecture is now:
% Trivial
% 
% Current number of equations to process: 54
% Current number of ordered equations: 0
% Current number of rules: 32
% The current conjecture is true and the solution is the identity
% % SZS output start Refutation
% 
% The following 16 rules have been used:
% [1] 
% divide(A,A) -> identity; trace = in the starting set
% [3] multiply(A,B) -> divide(A,divide(identity,B)); trace = in the starting set
% [4] divide(divide(identity,divide(A,divide(B,divide(divide(identity,A),C)))),C)
% -> B; trace = in the starting set
% [7] divide(divide(identity,divide(identity,divide(A,divide(identity,B)))),B)
% -> A; trace = Cp of 4 and 1
% [8] divide(divide(identity,divide(A,divide(B,identity))),divide(identity,A))
% -> B; trace = Cp of 4 and 1
% [11] divide(identity,divide(identity,A)) -> A; trace = Cp of 8 and 1
% [12] divide(A,identity) -> A; trace = Cp of 7 and 1
% [13] divide(divide(A,divide(identity,B)),B) -> A; trace = Cp of 4 and 1
% [14] divide(divide(identity,divide(A,B)),divide(identity,A)) -> B; trace = Cp of 4 and 1
% [15] divide(identity,divide(A,divide(B,divide(identity,A)))) -> B; trace = Cp of 12 and 4
% [17] divide(A,B) <-> divide(identity,divide(B,A)); trace = Cp of 14 and 13
% [21] divide(identity,A) <-> divide(B,divide(A,divide(identity,B))); trace = Cp of 15 and 11
% [26] divide(divide(identity,A),divide(B,divide(A,divide(divide(identity,B),C))))
% -> C; trace = Cp of 14 and 4
% [29] divide(identity,divide(C,divide(A,divide(divide(identity,C),divide(identity,B)))))
% -> divide(A,B); trace = Cp of 13 and 4
% [47] divide(divide(identity,A),divide(B,divide(A,C))) <->
% divide(V_3,divide(B,divide(divide(identity,V_3),C))); trace = Self cp of 26
% [49] divide(identity,divide(A,divide(B,divide(divide(identity,A),C)))) ->
% divide(B,divide(identity,C)); trace = Cp of 29 and 11
% % SZS output end Refutation
% All conjectures have been proven
% 
% Execution time: 0.120000 sec
% res : bool = true
% time is now off
% 
% status : string = "unsatisfiable"
% % SZS status Unsatisfiable
% CiME interrupted
% 
% EOF
%------------------------------------------------------------------------------