TSTP Solution File: GRP231-1 by CSE_E---1.5

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : CSE_E---1.5
% Problem  : GRP231-1 : TPTP v8.1.2. Released v2.5.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -jar /export/starexec/sandbox2/solver/bin/mcs_scs.jar %d %s

% Computer : n018.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  : 300s
% DateTime : Thu Aug 31 00:17:50 EDT 2023

% Result   : Unsatisfiable 0.15s 0.66s
% Output   : CNFRefutation 0.15s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   35
%            Number of leaves      :   28
% Syntax   : Number of formulae    :  100 (  20 unt;  11 typ;   0 def)
%            Number of atoms       :  220 ( 219 equ)
%            Maximal formula atoms :   11 (   2 avg)
%            Number of connectives :  204 (  73   ~; 131   |;   0   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   12 (   3 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of types       :    1 (   0 usr)
%            Number of type conns  :    3 (   2   >;   1   *;   0   +;   0  <<)
%            Number of predicates  :    2 (   0 usr;   1 prp; 0-2 aty)
%            Number of functors    :   11 (  11 usr;   9 con; 0-2 aty)
%            Number of variables   :   56 (   0 sgn;   0   !;   0   ?;   0   :)

% Comments : 
%------------------------------------------------------------------------------
tff(decl_22,type,
    identity: $i ).

tff(decl_23,type,
    multiply: ( $i * $i ) > $i ).

tff(decl_24,type,
    inverse: $i > $i ).

tff(decl_25,type,
    sk_c8: $i ).

tff(decl_26,type,
    sk_c7: $i ).

tff(decl_27,type,
    sk_c4: $i ).

tff(decl_28,type,
    sk_c6: $i ).

tff(decl_29,type,
    sk_c5: $i ).

tff(decl_30,type,
    sk_c1: $i ).

tff(decl_31,type,
    sk_c2: $i ).

tff(decl_32,type,
    sk_c3: $i ).

cnf(associativity,axiom,
    multiply(multiply(X1,X2),X3) = multiply(X1,multiply(X2,X3)),
    file('/export/starexec/sandbox2/benchmark/Axioms/GRP004-0.ax',associativity) ).

cnf(left_inverse,axiom,
    multiply(inverse(X1),X1) = identity,
    file('/export/starexec/sandbox2/benchmark/Axioms/GRP004-0.ax',left_inverse) ).

cnf(left_identity,axiom,
    multiply(identity,X1) = X1,
    file('/export/starexec/sandbox2/benchmark/Axioms/GRP004-0.ax',left_identity) ).

cnf(prove_this_27,negated_conjecture,
    ( multiply(sk_c3,sk_c7) = sk_c8
    | multiply(sk_c4,sk_c7) = sk_c8 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_27) ).

cnf(prove_this_22,negated_conjecture,
    ( inverse(sk_c3) = sk_c8
    | multiply(sk_c4,sk_c7) = sk_c8 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_22) ).

cnf(prove_this_26,negated_conjecture,
    ( multiply(sk_c3,sk_c7) = sk_c8
    | inverse(sk_c4) = sk_c8 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_26) ).

cnf(prove_this_8,negated_conjecture,
    ( multiply(sk_c1,sk_c2) = sk_c8
    | multiply(sk_c8,sk_c6) = sk_c7 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_8) ).

cnf(prove_this_21,negated_conjecture,
    ( inverse(sk_c3) = sk_c8
    | inverse(sk_c4) = sk_c8 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_21) ).

cnf(prove_this_13,negated_conjecture,
    ( inverse(sk_c1) = sk_c2
    | multiply(sk_c8,sk_c6) = sk_c7 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_13) ).

cnf(prove_this_31,negated_conjecture,
    ( inverse(sk_c8) != sk_c7
    | multiply(X1,X2) != sk_c8
    | inverse(X1) != X2
    | multiply(X2,sk_c7) != sk_c8
    | inverse(X3) != sk_c8
    | multiply(X3,sk_c7) != sk_c8
    | inverse(X4) != sk_c8
    | multiply(X4,sk_c7) != sk_c8
    | multiply(sk_c8,X5) != sk_c7
    | multiply(X6,sk_c8) != X5
    | inverse(X6) != sk_c8 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_31) ).

cnf(prove_this_28,negated_conjecture,
    ( multiply(sk_c3,sk_c7) = sk_c8
    | multiply(sk_c8,sk_c6) = sk_c7 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_28) ).

cnf(prove_this_3,negated_conjecture,
    ( inverse(sk_c8) = sk_c7
    | multiply(sk_c8,sk_c6) = sk_c7 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_3) ).

cnf(prove_this_23,negated_conjecture,
    ( inverse(sk_c3) = sk_c8
    | multiply(sk_c8,sk_c6) = sk_c7 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_23) ).

cnf(prove_this_14,negated_conjecture,
    ( inverse(sk_c1) = sk_c2
    | multiply(sk_c5,sk_c8) = sk_c6 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_14) ).

cnf(prove_this_9,negated_conjecture,
    ( multiply(sk_c1,sk_c2) = sk_c8
    | multiply(sk_c5,sk_c8) = sk_c6 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_9) ).

cnf(prove_this_15,negated_conjecture,
    ( inverse(sk_c1) = sk_c2
    | inverse(sk_c5) = sk_c8 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_15) ).

cnf(prove_this_10,negated_conjecture,
    ( multiply(sk_c1,sk_c2) = sk_c8
    | inverse(sk_c5) = sk_c8 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_10) ).

cnf(c_0_17,axiom,
    multiply(multiply(X1,X2),X3) = multiply(X1,multiply(X2,X3)),
    associativity ).

cnf(c_0_18,axiom,
    multiply(inverse(X1),X1) = identity,
    left_inverse ).

cnf(c_0_19,axiom,
    multiply(identity,X1) = X1,
    left_identity ).

cnf(c_0_20,plain,
    multiply(inverse(X1),multiply(X1,X2)) = X2,
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_17,c_0_18]),c_0_19]) ).

cnf(c_0_21,negated_conjecture,
    ( multiply(sk_c3,sk_c7) = sk_c8
    | multiply(sk_c4,sk_c7) = sk_c8 ),
    prove_this_27 ).

cnf(c_0_22,negated_conjecture,
    ( multiply(inverse(sk_c3),sk_c8) = sk_c7
    | multiply(sk_c4,sk_c7) = sk_c8 ),
    inference(spm,[status(thm)],[c_0_20,c_0_21]) ).

cnf(c_0_23,negated_conjecture,
    ( inverse(sk_c3) = sk_c8
    | multiply(sk_c4,sk_c7) = sk_c8 ),
    prove_this_22 ).

cnf(c_0_24,negated_conjecture,
    ( multiply(sk_c4,sk_c7) = sk_c8
    | multiply(sk_c8,sk_c8) = sk_c7 ),
    inference(spm,[status(thm)],[c_0_22,c_0_23]) ).

cnf(c_0_25,negated_conjecture,
    ( multiply(inverse(sk_c4),sk_c8) = sk_c7
    | multiply(sk_c8,sk_c8) = sk_c7 ),
    inference(spm,[status(thm)],[c_0_20,c_0_24]) ).

cnf(c_0_26,negated_conjecture,
    ( multiply(sk_c3,sk_c7) = sk_c8
    | inverse(sk_c4) = sk_c8 ),
    prove_this_26 ).

cnf(c_0_27,negated_conjecture,
    ( multiply(sk_c3,sk_c7) = sk_c8
    | multiply(sk_c8,sk_c8) = sk_c7 ),
    inference(spm,[status(thm)],[c_0_25,c_0_26]) ).

cnf(c_0_28,negated_conjecture,
    ( multiply(sk_c1,sk_c2) = sk_c8
    | multiply(sk_c8,sk_c6) = sk_c7 ),
    prove_this_8 ).

cnf(c_0_29,negated_conjecture,
    ( multiply(inverse(sk_c3),sk_c8) = sk_c7
    | multiply(sk_c8,sk_c8) = sk_c7 ),
    inference(spm,[status(thm)],[c_0_20,c_0_27]) ).

cnf(c_0_30,negated_conjecture,
    ( inverse(sk_c3) = sk_c8
    | inverse(sk_c4) = sk_c8 ),
    prove_this_21 ).

cnf(c_0_31,negated_conjecture,
    ( multiply(inverse(sk_c1),sk_c8) = sk_c2
    | multiply(sk_c8,sk_c6) = sk_c7 ),
    inference(spm,[status(thm)],[c_0_20,c_0_28]) ).

cnf(c_0_32,negated_conjecture,
    ( inverse(sk_c1) = sk_c2
    | multiply(sk_c8,sk_c6) = sk_c7 ),
    prove_this_13 ).

cnf(c_0_33,negated_conjecture,
    ( multiply(sk_c8,sk_c8) = sk_c7
    | inverse(sk_c4) = sk_c8 ),
    inference(spm,[status(thm)],[c_0_29,c_0_30]) ).

cnf(c_0_34,negated_conjecture,
    ( multiply(sk_c1,multiply(sk_c2,X1)) = multiply(sk_c8,X1)
    | multiply(sk_c8,sk_c6) = sk_c7 ),
    inference(spm,[status(thm)],[c_0_17,c_0_28]) ).

cnf(c_0_35,negated_conjecture,
    ( multiply(sk_c8,sk_c6) = sk_c7
    | multiply(sk_c2,sk_c8) = sk_c2 ),
    inference(spm,[status(thm)],[c_0_31,c_0_32]) ).

cnf(c_0_36,negated_conjecture,
    multiply(sk_c8,sk_c8) = sk_c7,
    inference(spm,[status(thm)],[c_0_25,c_0_33]) ).

cnf(c_0_37,negated_conjecture,
    ( multiply(sk_c8,sk_c6) = sk_c7
    | multiply(sk_c1,sk_c2) = sk_c7 ),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_34,c_0_35]),c_0_36]) ).

cnf(c_0_38,negated_conjecture,
    ( multiply(inverse(sk_c1),sk_c7) = sk_c2
    | multiply(sk_c8,sk_c6) = sk_c7 ),
    inference(spm,[status(thm)],[c_0_20,c_0_37]) ).

cnf(c_0_39,negated_conjecture,
    ( inverse(sk_c8) != sk_c7
    | multiply(X1,X2) != sk_c8
    | inverse(X1) != X2
    | multiply(X2,sk_c7) != sk_c8
    | inverse(X3) != sk_c8
    | multiply(X3,sk_c7) != sk_c8
    | inverse(X4) != sk_c8
    | multiply(X4,sk_c7) != sk_c8
    | multiply(sk_c8,X5) != sk_c7
    | multiply(X6,sk_c8) != X5
    | inverse(X6) != sk_c8 ),
    prove_this_31 ).

cnf(c_0_40,negated_conjecture,
    ( multiply(sk_c3,sk_c7) = sk_c8
    | multiply(sk_c8,sk_c6) = sk_c7 ),
    prove_this_28 ).

cnf(c_0_41,negated_conjecture,
    multiply(inverse(sk_c8),sk_c7) = sk_c8,
    inference(spm,[status(thm)],[c_0_20,c_0_36]) ).

cnf(c_0_42,negated_conjecture,
    ( inverse(sk_c8) = sk_c7
    | multiply(sk_c8,sk_c6) = sk_c7 ),
    prove_this_3 ).

cnf(c_0_43,negated_conjecture,
    ( multiply(sk_c8,sk_c6) = sk_c7
    | multiply(sk_c2,sk_c7) = sk_c2 ),
    inference(spm,[status(thm)],[c_0_38,c_0_32]) ).

cnf(c_0_44,negated_conjecture,
    ( multiply(sk_c8,multiply(X1,sk_c8)) != sk_c7
    | multiply(inverse(X2),sk_c7) != sk_c8
    | multiply(X2,inverse(X2)) != sk_c8
    | multiply(X3,sk_c7) != sk_c8
    | multiply(X4,sk_c7) != sk_c8
    | inverse(sk_c8) != sk_c7
    | inverse(X1) != sk_c8
    | inverse(X3) != sk_c8
    | inverse(X4) != sk_c8 ),
    inference(er,[status(thm)],[inference(er,[status(thm)],[c_0_39])]) ).

cnf(c_0_45,negated_conjecture,
    ( multiply(sk_c3,multiply(sk_c7,X1)) = multiply(sk_c8,X1)
    | multiply(sk_c8,sk_c6) = sk_c7 ),
    inference(spm,[status(thm)],[c_0_17,c_0_40]) ).

cnf(c_0_46,negated_conjecture,
    ( multiply(sk_c8,sk_c6) = sk_c7
    | multiply(sk_c7,sk_c7) = sk_c8 ),
    inference(spm,[status(thm)],[c_0_41,c_0_42]) ).

cnf(c_0_47,negated_conjecture,
    ( multiply(sk_c1,sk_c2) = multiply(sk_c8,sk_c7)
    | multiply(sk_c8,sk_c6) = sk_c7 ),
    inference(spm,[status(thm)],[c_0_34,c_0_43]) ).

cnf(c_0_48,negated_conjecture,
    ( multiply(sk_c8,sk_c6) = sk_c7
    | multiply(sk_c8,multiply(X1,sk_c8)) != sk_c7
    | multiply(inverse(X2),sk_c7) != sk_c8
    | multiply(X2,inverse(X2)) != sk_c8
    | multiply(X3,sk_c7) != sk_c8
    | multiply(X4,sk_c7) != sk_c8
    | inverse(X1) != sk_c8
    | inverse(X3) != sk_c8
    | inverse(X4) != sk_c8 ),
    inference(spm,[status(thm)],[c_0_44,c_0_42]) ).

cnf(c_0_49,negated_conjecture,
    ( multiply(sk_c3,sk_c8) = multiply(sk_c8,sk_c7)
    | multiply(sk_c8,sk_c6) = sk_c7 ),
    inference(spm,[status(thm)],[c_0_45,c_0_46]) ).

cnf(c_0_50,negated_conjecture,
    ( inverse(sk_c3) = sk_c8
    | multiply(sk_c8,sk_c6) = sk_c7 ),
    prove_this_23 ).

cnf(c_0_51,negated_conjecture,
    ( multiply(sk_c8,sk_c7) = sk_c8
    | multiply(sk_c8,sk_c6) = sk_c7 ),
    inference(spm,[status(thm)],[c_0_28,c_0_47]) ).

cnf(c_0_52,negated_conjecture,
    ( multiply(sk_c8,sk_c6) = sk_c7
    | multiply(sk_c8,multiply(sk_c8,sk_c7)) != sk_c7
    | multiply(inverse(X1),sk_c7) != sk_c8
    | multiply(X1,inverse(X1)) != sk_c8
    | multiply(X2,sk_c7) != sk_c8
    | multiply(X3,sk_c7) != sk_c8
    | inverse(X2) != sk_c8
    | inverse(X3) != sk_c8 ),
    inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_48,c_0_49]),c_0_50]) ).

cnf(c_0_53,negated_conjecture,
    ( multiply(sk_c8,sk_c7) = sk_c8
    | sk_c6 = sk_c8 ),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_20,c_0_51]),c_0_41]) ).

cnf(c_0_54,negated_conjecture,
    ( multiply(sk_c8,sk_c6) = sk_c7
    | sk_c6 = sk_c8
    | multiply(inverse(X1),sk_c7) != sk_c8
    | multiply(X1,inverse(X1)) != sk_c8
    | multiply(X2,sk_c7) != sk_c8
    | multiply(X3,sk_c7) != sk_c8
    | inverse(X2) != sk_c8
    | inverse(X3) != sk_c8 ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_52,c_0_53]),c_0_36])]) ).

cnf(c_0_55,negated_conjecture,
    ( multiply(sk_c8,sk_c6) = sk_c7
    | sk_c6 = sk_c8
    | multiply(sk_c8,inverse(sk_c8)) != sk_c8
    | multiply(X1,sk_c7) != sk_c8
    | multiply(X2,sk_c7) != sk_c8
    | inverse(X1) != sk_c8
    | inverse(X2) != sk_c8 ),
    inference(spm,[status(thm)],[c_0_54,c_0_41]) ).

cnf(c_0_56,negated_conjecture,
    ( multiply(sk_c8,sk_c6) = sk_c7
    | sk_c6 = sk_c8
    | multiply(X1,sk_c7) != sk_c8
    | multiply(X2,sk_c7) != sk_c8
    | inverse(X1) != sk_c8
    | inverse(X2) != sk_c8 ),
    inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_55,c_0_42]),c_0_53]) ).

cnf(c_0_57,negated_conjecture,
    ( multiply(sk_c8,sk_c6) = sk_c7
    | sk_c6 = sk_c8
    | multiply(X1,sk_c7) != sk_c8
    | inverse(X1) != sk_c8 ),
    inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_56,c_0_40]),c_0_50]) ).

cnf(c_0_58,negated_conjecture,
    ( inverse(sk_c1) = sk_c2
    | multiply(sk_c5,sk_c8) = sk_c6 ),
    prove_this_14 ).

cnf(c_0_59,negated_conjecture,
    ( multiply(sk_c8,sk_c6) = sk_c7
    | sk_c6 = sk_c8 ),
    inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_57,c_0_40]),c_0_50]) ).

cnf(c_0_60,negated_conjecture,
    ( multiply(sk_c1,sk_c2) = sk_c8
    | multiply(sk_c5,sk_c8) = sk_c6 ),
    prove_this_9 ).

cnf(c_0_61,negated_conjecture,
    ( multiply(sk_c5,sk_c8) = sk_c6
    | multiply(sk_c2,sk_c1) = identity ),
    inference(spm,[status(thm)],[c_0_18,c_0_58]) ).

cnf(c_0_62,negated_conjecture,
    sk_c6 = sk_c8,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_20,c_0_59]),c_0_41])]) ).

cnf(c_0_63,negated_conjecture,
    ( multiply(inverse(sk_c1),sk_c8) = sk_c2
    | multiply(sk_c5,sk_c8) = sk_c6 ),
    inference(spm,[status(thm)],[c_0_20,c_0_60]) ).

cnf(c_0_64,negated_conjecture,
    ( multiply(sk_c2,sk_c1) = identity
    | multiply(sk_c5,sk_c8) = sk_c8 ),
    inference(rw,[status(thm)],[c_0_61,c_0_62]) ).

cnf(c_0_65,negated_conjecture,
    ( inverse(sk_c1) = sk_c2
    | inverse(sk_c5) = sk_c8 ),
    prove_this_15 ).

cnf(c_0_66,negated_conjecture,
    ( multiply(sk_c5,sk_c8) = sk_c6
    | multiply(sk_c2,sk_c8) = sk_c2 ),
    inference(spm,[status(thm)],[c_0_63,c_0_58]) ).

cnf(c_0_67,negated_conjecture,
    ( multiply(inverse(sk_c5),sk_c8) = sk_c8
    | multiply(sk_c2,sk_c1) = identity ),
    inference(spm,[status(thm)],[c_0_20,c_0_64]) ).

cnf(c_0_68,negated_conjecture,
    ( multiply(sk_c2,sk_c1) = identity
    | inverse(sk_c5) = sk_c8 ),
    inference(spm,[status(thm)],[c_0_18,c_0_65]) ).

cnf(c_0_69,negated_conjecture,
    ( multiply(inverse(sk_c5),sk_c6) = sk_c8
    | multiply(sk_c2,sk_c8) = sk_c2 ),
    inference(spm,[status(thm)],[c_0_20,c_0_66]) ).

cnf(c_0_70,negated_conjecture,
    ( multiply(sk_c2,sk_c1) = identity
    | sk_c7 = sk_c8 ),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_67,c_0_68]),c_0_36]) ).

cnf(c_0_71,negated_conjecture,
    ( multiply(inverse(sk_c5),sk_c8) = sk_c8
    | multiply(sk_c2,sk_c8) = sk_c2 ),
    inference(rw,[status(thm)],[c_0_69,c_0_62]) ).

cnf(c_0_72,negated_conjecture,
    ( multiply(sk_c1,sk_c2) = sk_c8
    | inverse(sk_c5) = sk_c8 ),
    prove_this_10 ).

cnf(c_0_73,negated_conjecture,
    ( multiply(sk_c2,multiply(sk_c1,X1)) = X1
    | sk_c7 = sk_c8 ),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_17,c_0_70]),c_0_19]) ).

cnf(c_0_74,negated_conjecture,
    ( multiply(sk_c1,sk_c2) = sk_c8
    | multiply(sk_c2,sk_c8) = sk_c2
    | sk_c7 = sk_c8 ),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_71,c_0_72]),c_0_36]) ).

cnf(c_0_75,negated_conjecture,
    ( multiply(sk_c2,sk_c8) = sk_c2
    | sk_c7 = sk_c8 ),
    inference(spm,[status(thm)],[c_0_73,c_0_74]) ).

cnf(c_0_76,negated_conjecture,
    ( sk_c7 = sk_c8
    | sk_c8 = identity ),
    inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_20,c_0_75]),c_0_18]) ).

cnf(c_0_77,negated_conjecture,
    sk_c8 = identity,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_41,c_0_76]),c_0_18])]) ).

cnf(c_0_78,negated_conjecture,
    multiply(inverse(inverse(sk_c8)),sk_c8) = sk_c7,
    inference(spm,[status(thm)],[c_0_20,c_0_41]) ).

cnf(c_0_79,negated_conjecture,
    sk_c7 = identity,
    inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_36,c_0_77]),c_0_77]),c_0_19]) ).

cnf(c_0_80,negated_conjecture,
    multiply(inverse(inverse(identity)),identity) = identity,
    inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_78,c_0_77]),c_0_77]),c_0_79]) ).

cnf(c_0_81,negated_conjecture,
    multiply(inverse(inverse(identity)),X1) = X1,
    inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_17,c_0_80]),c_0_19]),c_0_19]) ).

cnf(c_0_82,negated_conjecture,
    inverse(identity) = identity,
    inference(spm,[status(thm)],[c_0_18,c_0_81]) ).

cnf(c_0_83,plain,
    multiply(inverse(inverse(X1)),identity) = X1,
    inference(spm,[status(thm)],[c_0_20,c_0_18]) ).

cnf(c_0_84,plain,
    multiply(inverse(inverse(X1)),X2) = multiply(X1,X2),
    inference(spm,[status(thm)],[c_0_20,c_0_20]) ).

cnf(c_0_85,negated_conjecture,
    ( multiply(inverse(X1),identity) != identity
    | multiply(X1,inverse(X1)) != identity
    | multiply(X2,identity) != identity
    | multiply(X3,identity) != identity
    | multiply(X4,identity) != identity
    | inverse(X2) != identity
    | inverse(X3) != identity
    | inverse(X4) != identity ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_44,c_0_77]),c_0_77]),c_0_19]),c_0_77]),c_0_77]),c_0_77]),c_0_77]),c_0_77]),c_0_77]),c_0_77]),c_0_77]),c_0_79]),c_0_79]),c_0_79]),c_0_79]),c_0_82]),c_0_79])]) ).

cnf(c_0_86,plain,
    multiply(X1,identity) = X1,
    inference(rw,[status(thm)],[c_0_83,c_0_84]) ).

cnf(c_0_87,negated_conjecture,
    ( multiply(X1,inverse(X1)) != identity
    | inverse(X1) != identity ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(er,[status(thm)],[inference(er,[status(thm)],[inference(er,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_85,c_0_86]),c_0_86]),c_0_86]),c_0_86])])])]),c_0_82])]) ).

cnf(c_0_88,negated_conjecture,
    $false,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_87,c_0_82]),c_0_19])]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.10  % Problem    : GRP231-1 : TPTP v8.1.2. Released v2.5.0.
% 0.03/0.10  % Command    : java -jar /export/starexec/sandbox2/solver/bin/mcs_scs.jar %d %s
% 0.08/0.31  % Computer : n018.cluster.edu
% 0.08/0.31  % Model    : x86_64 x86_64
% 0.08/0.31  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.31  % Memory   : 8042.1875MB
% 0.08/0.31  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.08/0.31  % CPULimit   : 300
% 0.08/0.31  % WCLimit    : 300
% 0.08/0.31  % DateTime   : Mon Aug 28 19:59:02 EDT 2023
% 0.08/0.31  % CPUTime  : 
% 0.15/0.61  start to proof: theBenchmark
% 0.15/0.66  % Version  : CSE_E---1.5
% 0.15/0.66  % Problem  : theBenchmark.p
% 0.15/0.66  % Proof found
% 0.15/0.66  % SZS status Theorem for theBenchmark.p
% 0.15/0.66  % SZS output start Proof
% See solution above
% 0.15/0.68  % Total time : 0.075000 s
% 0.15/0.68  % SZS output end Proof
% 0.15/0.68  % Total time : 0.077000 s
%------------------------------------------------------------------------------