TSTP Solution File: GRP028-2 by Moca---0.1

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Moca---0.1
% Problem  : GRP028-2 : TPTP v8.1.0. Released v1.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : moca.sh %s

% Computer : n011.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 600s
% DateTime : Sat Jul 16 10:51:59 EDT 2022

% Result   : Unsatisfiable 5.27s 5.29s
% Output   : Proof 5.27s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.11  % Problem  : GRP028-2 : TPTP v8.1.0. Released v1.1.0.
% 0.03/0.12  % Command  : moca.sh %s
% 0.12/0.33  % Computer : n011.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 600
% 0.12/0.33  % DateTime : Mon Jun 13 15:16:48 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 5.27/5.29  % SZS status Unsatisfiable
% 5.27/5.29  % SZS output start Proof
% 5.27/5.29  The input problem is unsatisfiable because
% 5.27/5.29  
% 5.27/5.29  [1] the following set of Horn clauses is unsatisfiable:
% 5.27/5.29  
% 5.27/5.29  	product(X, Y, multiply(X, Y))
% 5.27/5.29  	product(X, Y, Z) & product(X, Y, W) ==> Z = W
% 5.27/5.29  	product(X, Y, U) & product(Y, Z, V) & product(U, Z, W) ==> product(X, V, W)
% 5.27/5.29  	product(X, Y, U) & product(Y, Z, V) & product(X, V, W) ==> product(U, Z, W)
% 5.27/5.29  	product(left_solution(X, Y), X, Y)
% 5.27/5.29  	product(X, right_solution(X, Y), Y)
% 5.27/5.29  	product(not_identity(X), X, not_identity(X)) ==> \bottom
% 5.27/5.29  
% 5.27/5.29  This holds because
% 5.27/5.29  
% 5.27/5.29  [2] the following E entails the following G (Claessen-Smallbone's transformation (2018)):
% 5.27/5.29  
% 5.27/5.29  E:
% 5.27/5.29  	f1(true__, Z, W) = Z
% 5.27/5.29  	f2(product(X, Y, W), X, Y, Z, W) = W
% 5.27/5.29  	f2(true__, X, Y, Z, W) = f1(product(X, Y, Z), Z, W)
% 5.27/5.29  	f3(true__, X, V, W) = product(X, V, W)
% 5.27/5.29  	f4(true__, X, Y, U, V, W) = f3(product(X, Y, U), X, V, W)
% 5.27/5.29  	f5(product(U, Z, W), Y, Z, V, X, U, W) = true__
% 5.27/5.29  	f5(true__, Y, Z, V, X, U, W) = f4(product(Y, Z, V), X, Y, U, V, W)
% 5.27/5.29  	f6(true__, U, Z, W) = product(U, Z, W)
% 5.27/5.29  	f7(true__, X, Y, U, Z, W) = f6(product(X, Y, U), U, Z, W)
% 5.27/5.29  	f8(product(X, V, W), Y, Z, V, X, U, W) = true__
% 5.27/5.29  	f8(true__, Y, Z, V, X, U, W) = f7(product(Y, Z, V), X, Y, U, Z, W)
% 5.27/5.29  	f9(product(not_identity(X), X, not_identity(X))) = true__
% 5.27/5.29  	f9(true__) = false__
% 5.27/5.29  	product(X, Y, multiply(X, Y)) = true__
% 5.27/5.29  	product(X, right_solution(X, Y), Y) = true__
% 5.27/5.29  	product(left_solution(X, Y), X, Y) = true__
% 5.27/5.29  G:
% 5.27/5.29  	true__ = false__
% 5.27/5.29  
% 5.27/5.29  This holds because
% 5.27/5.29  
% 5.27/5.29  [3] E entails the following ordered TRS and the lhs and rhs of G join by the TRS:
% 5.27/5.29  
% 5.27/5.29  
% 5.27/5.29  	f1(f3(true__, Y0, Y1, Y3), Y3, multiply(Y0, Y1)) -> multiply(Y0, Y1)
% 5.27/5.29  	f1(f3(true__, Y0, right_solution(Y0, Y2), Y3), Y3, Y2) -> Y2
% 5.27/5.29  	f1(f3(true__, left_solution(Y1, Y2), Y1, Y3), Y3, Y2) -> Y2
% 5.27/5.29  	f1(true__, Z, W) -> Z
% 5.27/5.29  	f2(f3(true__, Y0, Y1, Y2), Y0, Y1, Y3, Y2) -> Y2
% 5.27/5.29  	f2(product(X, Y, W), X, Y, Z, W) -> W
% 5.27/5.29  	f2(true__, X, Y, Z, W) -> f1(product(X, Y, Z), Z, W)
% 5.27/5.29  	f3(f3(true__, Y0, Y1, Y2), Y0, X1, multiply(Y2, right_solution(Y1, X1))) -> true__
% 5.27/5.29  	f3(f3(true__, Y0, Y1, Y2), Y0, multiply(Y1, right_solution(Y2, X1)), X1) -> true__
% 5.27/5.29  	f3(f3(true__, Y0, Y1, left_solution(Y3, X1)), Y0, multiply(Y1, Y3), X1) -> true__
% 5.27/5.29  	f3(f3(true__, Y0, Y1, left_solution(right_solution(Y1, X1), Y3)), Y0, X1, Y3) -> true__
% 5.27/5.29  	f3(f3(true__, Y0, left_solution(Y1, Y2), left_solution(Y1, X1)), Y0, Y2, X1) -> true__
% 5.27/5.29  	f3(f3(true__, Y0, left_solution(right_solution(Y3, X1), Y2), Y3), Y0, Y2, X1) -> true__
% 5.27/5.29  	f3(f3(true__, Y3, Y0, Y4), Y3, multiply(Y0, Y1), multiply(Y4, Y1)) -> true__
% 5.27/5.29  	f3(f3(true__, Y3, left_solution(Y1, Y2), Y4), Y3, Y2, multiply(Y4, Y1)) -> true__
% 5.27/5.29  	f3(f3(true__, Y4, Y1, Y1), Y4, Y3, Y3) -> true__
% 5.27/5.29  	f3(true__, Y0, X1, multiply(multiply(Y0, Y1), right_solution(Y1, X1))) -> true__
% 5.27/5.29  	f3(true__, Y0, X1, multiply(multiply(Y0, left_solution(Y2, X1)), Y2)) -> true__
% 5.27/5.29  	f3(true__, Y0, Y1, multiply(X1, right_solution(right_solution(Y0, X1), Y1))) -> true__
% 5.27/5.29  	f3(true__, Y0, Y1, multiply(Y0, Y1)) -> true__
% 5.27/5.29  	f3(true__, Y0, multiply(Y1, Y3), multiply(multiply(Y0, Y1), Y3)) -> true__
% 5.27/5.29  	f3(true__, Y0, multiply(Y1, right_solution(multiply(Y0, Y1), X1)), X1) -> true__
% 5.27/5.29  	f3(true__, Y0, multiply(right_solution(X1, X1), Y2), multiply(Y0, Y2)) -> true__
% 5.27/5.29  	f3(true__, Y0, multiply(right_solution(Y0, X1), Y2), multiply(X1, Y2)) -> true__
% 5.27/5.29  	f3(true__, Y0, multiply(right_solution(Y0, X1), right_solution(X1, Y2)), Y2) -> true__
% 5.27/5.29  	f3(true__, Y0, multiply(right_solution(Y0, left_solution(Y2, X1)), Y2), X1) -> true__
% 5.27/5.29  	f3(true__, Y0, right_solution(X1, X1), Y0) -> true__
% 5.27/5.29  	f3(true__, Y0, right_solution(Y0, Y2), Y2) -> true__
% 5.27/5.29  	f3(true__, Y0, right_solution(right_solution(left_solution(X1, X2), Y0), X1), X2) -> true__
% 5.27/5.29  	f3(true__, left_solution(Y0, Y1), multiply(Y0, right_solution(Y1, X1)), X1) -> true__
% 5.27/5.29  	f3(true__, left_solution(Y0, left_solution(Y2, X1)), multiply(Y0, Y2), X1) -> true__
% 5.27/5.29  	f3(true__, left_solution(Y1, X1), multiply(Y1, Y2), multiply(X1, Y2)) -> true__
% 5.27/5.29  	f3(true__, left_solution(Y1, Y1), Y2, Y2) -> true__
% 5.27/5.29  	f3(true__, left_solution(Y1, Y2), Y1, Y2) -> true__
% 5.27/5.29  	f3(true__, left_solution(Y2, X1), Y1, multiply(X1, right_solution(Y2, Y1))) -> true__
% 5.27/5.29  	f3(true__, left_solution(left_solution(Y2, Y1), X1), Y1, multiply(X1, Y2)) -> true__
% 5.27/5.29  	f3(true__, left_solution(multiply(right_solution(X0, X0), Y1), X2), Y1, X2) -> true__
% 5.27/5.29  	f3(true__, multiply(left_solution(X0, X1), X2), right_solution(X2, X0), X1) -> true__
% 5.27/5.29  	f3(true__, multiply(left_solution(X0, X1), left_solution(Y1, X0)), Y1, X1) -> true__
% 5.27/5.29  	f3(true__, multiply(left_solution(multiply(X0, Y1), X2), X0), Y1, X2) -> true__
% 5.27/5.29  	f3(true__, right_solution(X0, X0), Y1, Y1) -> true__
% 5.27/5.29  	f4(f3(true__, Y3, Y1, Y4), Y5, Y3, Y0, Y4, multiply(Y0, Y1)) -> true__
% 5.27/5.29  	f4(f3(true__, Y3, Y1, Y4), Y5, Y3, left_solution(Y1, Y2), Y4, Y2) -> true__
% 5.27/5.29  	f4(f3(true__, Y3, right_solution(Y0, Y2), Y4), Y5, Y3, Y0, Y4, Y2) -> true__
% 5.27/5.29  	f4(true__, X, Y, U, V, W) -> f3(product(X, Y, U), X, V, W)
% 5.27/5.29  	f5(f3(true__, Y0, Y1, Y2), Y3, Y1, Y4, Y5, Y0, Y2) -> true__
% 5.27/5.29  	f5(product(U, Z, W), Y, Z, V, X, U, W) -> true__
% 5.27/5.29  	f5(true__, Y, Z, V, X, U, W) -> f4(product(Y, Z, V), X, Y, U, V, W)
% 5.27/5.29  	f6(f3(true__, Y0, Y1, Y2), Y2, right_solution(Y1, X1), multiply(Y0, X1)) -> true__
% 5.27/5.29  	f6(f3(true__, Y0, left_solution(Y1, right_solution(Y0, X1)), Y3), Y3, Y1, X1) -> true__
% 5.27/5.29  	f6(f3(true__, Y0, left_solution(Y3, X1), Y2), Y2, Y3, multiply(Y0, X1)) -> true__
% 5.27/5.29  	f6(f3(true__, Y3, Y0, Y4), Y4, Y1, multiply(Y3, multiply(Y0, Y1))) -> true__
% 5.27/5.29  	f6(f3(true__, left_solution(X1, Y2), Y0, Y3), Y3, right_solution(Y0, X1), Y2) -> true__
% 5.27/5.29  	f6(f3(true__, left_solution(X1, Y2), left_solution(Y1, X1), Y3), Y3, Y1, Y2) -> true__
% 5.27/5.29  	f6(f3(true__, left_solution(multiply(Y1, Y3), X1), Y1, Y2), Y2, Y3, X1) -> true__
% 5.27/5.29  	f6(true__, U, Z, W) -> product(U, Z, W)
% 5.27/5.29  	f7(f3(true__, Y3, Y4, Y1), Y0, Y3, Y5, Y4, multiply(Y0, Y1)) -> true__
% 5.27/5.29  	f7(f3(true__, Y3, Y4, Y1), left_solution(Y1, Y2), Y3, Y5, Y4, Y2) -> true__
% 5.27/5.29  	f7(f3(true__, Y3, Y4, right_solution(Y0, Y2)), Y0, Y3, Y5, Y4, Y2) -> true__
% 5.27/5.29  	f7(true__, X, Y, U, Z, W) -> f6(product(X, Y, U), U, Z, W)
% 5.27/5.29  	f8(f3(true__, Y0, Y1, Y2), Y3, Y4, Y1, Y0, Y5, Y2) -> true__
% 5.27/5.29  	f8(product(X, V, W), Y, Z, V, X, U, W) -> true__
% 5.27/5.29  	f8(true__, Y, Z, V, X, U, W) -> f7(product(Y, Z, V), X, Y, U, Z, W)
% 5.27/5.29  	f9(f3(true__, not_identity(Y0), Y0, not_identity(Y0))) -> true__
% 5.27/5.29  	f9(product(not_identity(X), X, not_identity(X))) -> true__
% 5.27/5.29  	f9(true__) -> false__
% 5.27/5.29  	false__ -> true__
% 5.27/5.29  	left_solution(right_solution(Y1, Y1), X1) -> X1
% 5.27/5.29  	multiply(X1, right_solution(right_solution(left_solution(Y0, Y1), X1), Y0)) -> Y1
% 5.27/5.29  	multiply(Y0, right_solution(Y0, Y1)) -> Y1
% 5.27/5.29  	multiply(Y0, right_solution(right_solution(Y2, Y0), right_solution(X0, X0))) -> Y2
% 5.27/5.29  	multiply(Y1, right_solution(Y2, Y2)) -> Y1
% 5.27/5.29  	multiply(Y1, right_solution(right_solution(Y2, Y2), right_solution(X0, X0))) -> Y1
% 5.27/5.29  	multiply(left_solution(Y0, Y1), Y0) -> Y1
% 5.27/5.29  	multiply(left_solution(Y0, Y1), left_solution(right_solution(X1, X1), Y0)) -> Y1
% 5.27/5.29  	multiply(left_solution(Y0, Y1), right_solution(right_solution(X1, X1), Y0)) -> Y1
% 5.27/5.29  	multiply(left_solution(multiply(right_solution(X1, X1), Y1), Y2), Y1) -> Y2
% 5.27/5.29  	multiply(multiply(Y1, Y2), right_solution(Y2, right_solution(X0, X0))) -> Y1
% 5.27/5.29  	multiply(multiply(Y1, left_solution(Y2, right_solution(X0, X0))), Y2) -> Y1
% 5.27/5.29  	multiply(multiply(left_solution(X1, Y2), Y0), right_solution(Y0, X1)) -> Y2
% 5.27/5.29  	multiply(multiply(left_solution(X1, Y2), left_solution(Y1, X1)), Y1) -> Y2
% 5.27/5.29  	multiply(multiply(left_solution(multiply(X1, X2), Y1), X1), X2) -> Y1
% 5.27/5.29  	product(X, V, W) -> f3(true__, X, V, W)
% 5.27/5.29  	product(X, Y, multiply(X, Y)) -> true__
% 5.27/5.29  	product(X, right_solution(X, Y), Y) -> true__
% 5.27/5.29  	product(left_solution(X, Y), X, Y) -> true__
% 5.27/5.29  with the LPO induced by
% 5.27/5.29  	not_identity > f9 > right_solution > left_solution > f2 > f1 > f8 > f7 > f6 > f5 > f4 > product > f3 > multiply > false__ > true__
% 5.27/5.29  
% 5.27/5.29  % SZS output end Proof
% 5.27/5.29  
%------------------------------------------------------------------------------