%------------------------------------------------------------------------------
% File : E---3.5.1
% Problem : GRP268-1 : TPTP v9.3.1. Released v2.5.0.
% Transfm : none
% Format : tptp:raw
% Command : run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% Computer : n014.cluster.edu
% Model : x86_64 x86_64
% CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory : 8046.5625MB
% OS : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit : 300s
% DateTime : Thu Sep 24 12:39:08 PM UTC 2026
% Result : Unsatisfiable 0.16s 0.45s
% Output : CNFRefutation 0.16s
% Verified :
% SZS Type : Refutation
% Derivation depth : 42
% Number of leaves : 14
% Syntax : Number of clauses : 114 ( 26 unt; 63 nHn; 100 RR)
% Number of literals : 345 ( 344 equ; 176 neg)
% Maximal clause size : 10 ( 3 avg)
% Maximal term depth : 4 ( 1 avg)
% 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 : 99 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
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_1,negated_conjecture,
( multiply(sk_c5,sk_c8) = sk_c7
| multiply(sk_c1,sk_c8) = sk_c7 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_1) ).
cnf(prove_this_4,negated_conjecture,
( multiply(sk_c5,sk_c8) = sk_c7
| inverse(sk_c1) = sk_c8 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_4) ).
cnf(prove_this_2,negated_conjecture,
( inverse(sk_c5) = sk_c8
| multiply(sk_c1,sk_c8) = sk_c7 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_2) ).
cnf(prove_this_5,negated_conjecture,
( inverse(sk_c5) = sk_c8
| inverse(sk_c1) = sk_c8 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_5) ).
cnf(prove_this_18,negated_conjecture,
( inverse(sk_c6) = sk_c7
| multiply(sk_c3,sk_c6) = sk_c4 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_18) ).
cnf(prove_this_22,negated_conjecture,
( inverse(sk_c6) != sk_c7
| inverse(X5) != sk_c8
| multiply(X5,sk_c8) != sk_c7
| inverse(X4) != sk_c6
| multiply(X4,sk_c6) != X3
| multiply(sk_c6,X3) != sk_c7
| inverse(X2) != sk_c6
| multiply(X2,sk_c6) != sk_c7
| inverse(X1) != sk_c8
| multiply(X1,sk_c8) != sk_c7 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_22) ).
cnf(prove_this_12,negated_conjecture,
( inverse(sk_c6) = sk_c7
| inverse(sk_c2) = sk_c6 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_12) ).
cnf(prove_this_15,negated_conjecture,
( inverse(sk_c6) = sk_c7
| multiply(sk_c6,sk_c4) = sk_c7 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_15) ).
cnf(prove_this_21,negated_conjecture,
( inverse(sk_c6) = sk_c7
| inverse(sk_c3) = sk_c6 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_21) ).
cnf(prove_this_6,negated_conjecture,
( inverse(sk_c6) = sk_c7
| inverse(sk_c1) = sk_c8 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_6) ).
cnf(prove_this_11,negated_conjecture,
( inverse(sk_c5) = sk_c8
| inverse(sk_c2) = sk_c6 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_11) ).
cnf(c_0_14,axiom,
multiply(multiply(X1,X2),X3) = multiply(X1,multiply(X2,X3)),
associativity ).
cnf(c_0_15,axiom,
multiply(inverse(X1),X1) = identity,
left_inverse ).
cnf(c_0_16,axiom,
multiply(identity,X1) = X1,
left_identity ).
cnf(c_0_17,plain,
multiply(inverse(X1),multiply(X1,X2)) = X2,
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_14,c_0_15]),c_0_16]) ).
cnf(c_0_18,negated_conjecture,
( multiply(sk_c5,sk_c8) = sk_c7
| multiply(sk_c1,sk_c8) = sk_c7 ),
prove_this_1 ).
cnf(c_0_19,negated_conjecture,
( multiply(sk_c5,sk_c8) = sk_c7
| multiply(inverse(sk_c1),sk_c7) = sk_c8 ),
inference(spm,[status(thm)],[c_0_17,c_0_18]) ).
cnf(c_0_20,negated_conjecture,
( multiply(sk_c5,sk_c8) = sk_c7
| inverse(sk_c1) = sk_c8 ),
prove_this_4 ).
cnf(c_0_21,negated_conjecture,
( multiply(sk_c8,sk_c7) = sk_c8
| multiply(sk_c5,sk_c8) = sk_c7 ),
inference(spm,[status(thm)],[c_0_19,c_0_20]) ).
cnf(c_0_22,negated_conjecture,
( multiply(sk_c8,sk_c7) = sk_c8
| multiply(inverse(sk_c5),sk_c7) = sk_c8 ),
inference(spm,[status(thm)],[c_0_17,c_0_21]) ).
cnf(c_0_23,negated_conjecture,
( inverse(sk_c5) = sk_c8
| multiply(sk_c1,sk_c8) = sk_c7 ),
prove_this_2 ).
cnf(c_0_24,negated_conjecture,
( multiply(sk_c8,sk_c7) = sk_c8
| multiply(sk_c1,sk_c8) = sk_c7 ),
inference(spm,[status(thm)],[c_0_22,c_0_23]) ).
cnf(c_0_25,negated_conjecture,
( multiply(sk_c8,sk_c7) = sk_c8
| multiply(inverse(sk_c1),sk_c7) = sk_c8 ),
inference(spm,[status(thm)],[c_0_17,c_0_24]) ).
cnf(c_0_26,negated_conjecture,
( inverse(sk_c5) = sk_c8
| inverse(sk_c1) = sk_c8 ),
prove_this_5 ).
cnf(c_0_27,negated_conjecture,
( inverse(sk_c5) = sk_c8
| multiply(sk_c8,sk_c7) = sk_c8 ),
inference(spm,[status(thm)],[c_0_25,c_0_26]) ).
cnf(c_0_28,negated_conjecture,
multiply(sk_c8,sk_c7) = sk_c8,
inference(spm,[status(thm)],[c_0_22,c_0_27]) ).
cnf(c_0_29,negated_conjecture,
( inverse(sk_c6) = sk_c7
| multiply(sk_c3,sk_c6) = sk_c4 ),
prove_this_18 ).
cnf(c_0_30,negated_conjecture,
identity = sk_c7,
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_17,c_0_28]),c_0_15]) ).
cnf(c_0_31,negated_conjecture,
( inverse(sk_c6) != sk_c7
| inverse(X5) != sk_c8
| multiply(X5,sk_c8) != sk_c7
| inverse(X4) != sk_c6
| multiply(X4,sk_c6) != X3
| multiply(sk_c6,X3) != sk_c7
| inverse(X2) != sk_c6
| multiply(X2,sk_c6) != sk_c7
| inverse(X1) != sk_c8
| multiply(X1,sk_c8) != sk_c7 ),
inference(fof_simplification,[status(thm)],[prove_this_22]) ).
cnf(c_0_32,negated_conjecture,
( multiply(sk_c7,sk_c6) = identity
| multiply(sk_c3,sk_c6) = sk_c4 ),
inference(spm,[status(thm)],[c_0_15,c_0_29]) ).
cnf(c_0_33,plain,
multiply(sk_c7,X1) = X1,
inference(rw,[status(thm)],[c_0_16,c_0_30]) ).
cnf(c_0_34,negated_conjecture,
( inverse(sk_c6) != sk_c7
| inverse(X5) != sk_c8
| multiply(X5,sk_c8) != sk_c7
| inverse(X4) != sk_c6
| multiply(X4,sk_c6) != X3
| multiply(sk_c6,X3) != sk_c7
| inverse(X2) != sk_c6
| multiply(X2,sk_c6) != sk_c7
| inverse(X1) != sk_c8
| multiply(X1,sk_c8) != sk_c7 ),
c_0_31 ).
cnf(c_0_35,negated_conjecture,
( inverse(sk_c6) = sk_c7
| inverse(sk_c2) = sk_c6 ),
prove_this_12 ).
cnf(c_0_36,negated_conjecture,
( inverse(sk_c6) = sk_c7
| multiply(sk_c6,sk_c4) = sk_c7 ),
prove_this_15 ).
cnf(c_0_37,negated_conjecture,
( sk_c7 = sk_c6
| multiply(sk_c3,sk_c6) = sk_c4 ),
inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_32,c_0_30]),c_0_33]) ).
cnf(c_0_38,negated_conjecture,
( inverse(X4) != sk_c8
| inverse(X3) != sk_c6
| inverse(X1) != sk_c6
| inverse(X2) != sk_c8
| inverse(sk_c6) != sk_c7
| multiply(X4,sk_c8) != sk_c7
| multiply(X3,sk_c6) != sk_c7
| multiply(X2,sk_c8) != sk_c7
| multiply(sk_c6,multiply(X1,sk_c6)) != sk_c7 ),
inference(er,[status(thm)],[c_0_34]) ).
cnf(c_0_39,negated_conjecture,
( inverse(sk_c6) = sk_c7
| multiply(sk_c6,sk_c2) = identity ),
inference(spm,[status(thm)],[c_0_15,c_0_35]) ).
cnf(c_0_40,negated_conjecture,
( multiply(sk_c7,sk_c6) = identity
| multiply(sk_c6,sk_c4) = sk_c7 ),
inference(spm,[status(thm)],[c_0_15,c_0_36]) ).
cnf(c_0_41,negated_conjecture,
( sk_c7 = sk_c6
| multiply(inverse(sk_c3),sk_c4) = sk_c6 ),
inference(spm,[status(thm)],[c_0_17,c_0_37]) ).
cnf(c_0_42,negated_conjecture,
( inverse(sk_c6) = sk_c7
| inverse(sk_c3) = sk_c6 ),
prove_this_21 ).
cnf(c_0_43,negated_conjecture,
( inverse(X4) != sk_c8
| inverse(X3) != sk_c6
| inverse(X1) != sk_c6
| inverse(X2) != sk_c8
| multiply(X4,sk_c8) != sk_c7
| multiply(X3,sk_c6) != sk_c7
| multiply(X2,sk_c8) != sk_c7
| multiply(sk_c6,multiply(X1,sk_c6)) != sk_c7
| multiply(sk_c6,sk_c2) = identity ),
inference(spm,[status(thm)],[c_0_38,c_0_39]) ).
cnf(c_0_44,negated_conjecture,
( multiply(sk_c6,sk_c4) = sk_c7
| multiply(sk_c7,sk_c6) = sk_c7 ),
inference(rw,[status(thm)],[c_0_40,c_0_30]) ).
cnf(c_0_45,plain,
multiply(inverse(X1),X1) = sk_c7,
inference(rw,[status(thm)],[c_0_15,c_0_30]) ).
cnf(c_0_46,negated_conjecture,
( sk_c7 = sk_c6
| inverse(sk_c6) = sk_c7
| multiply(sk_c6,sk_c4) = sk_c6 ),
inference(spm,[status(thm)],[c_0_41,c_0_42]) ).
cnf(c_0_47,negated_conjecture,
( inverse(X3) != sk_c8
| inverse(X2) != sk_c6
| inverse(X1) != sk_c8
| inverse(identity) != sk_c6
| multiply(X3,sk_c8) != sk_c7
| multiply(X2,sk_c6) != sk_c7
| multiply(X1,sk_c8) != sk_c7
| multiply(sk_c6,sk_c6) != sk_c7
| multiply(sk_c6,sk_c2) = identity ),
inference(spm,[status(thm)],[c_0_43,c_0_16]) ).
cnf(c_0_48,negated_conjecture,
( sk_c7 = sk_c6
| multiply(sk_c6,sk_c4) = sk_c7 ),
inference(spm,[status(thm)],[c_0_33,c_0_44]) ).
cnf(c_0_49,negated_conjecture,
( sk_c7 = sk_c6
| multiply(sk_c6,sk_c4) = sk_c6 ),
inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_45,c_0_46]),c_0_33])]) ).
cnf(c_0_50,negated_conjecture,
( inverse(X3) != sk_c8
| inverse(X2) != sk_c6
| inverse(X1) != sk_c8
| inverse(sk_c7) != sk_c6
| multiply(X3,sk_c8) != sk_c7
| multiply(X2,sk_c6) != sk_c7
| multiply(X1,sk_c8) != sk_c7
| multiply(sk_c6,sk_c6) != sk_c7
| multiply(sk_c6,sk_c2) = sk_c7 ),
inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_47,c_0_30]),c_0_30]) ).
cnf(c_0_51,negated_conjecture,
sk_c7 = sk_c6,
inference(spm,[status(thm)],[c_0_48,c_0_49]) ).
cnf(c_0_52,negated_conjecture,
( inverse(sk_c6) = sk_c7
| multiply(sk_c6,sk_c2) = sk_c7 ),
inference(rw,[status(thm)],[c_0_39,c_0_30]) ).
cnf(c_0_53,negated_conjecture,
( inverse(X3) != sk_c8
| inverse(X2) != sk_c6
| inverse(X1) != sk_c8
| inverse(sk_c6) != sk_c6
| multiply(X3,sk_c8) != sk_c6
| multiply(X2,sk_c6) != sk_c6
| multiply(X1,sk_c8) != sk_c6
| multiply(sk_c6,sk_c6) != sk_c6
| multiply(sk_c6,sk_c2) = sk_c6 ),
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_50,c_0_51]),c_0_51]),c_0_51]),c_0_51]),c_0_51]),c_0_51]) ).
cnf(c_0_54,negated_conjecture,
( inverse(sk_c6) = sk_c6
| multiply(sk_c6,sk_c2) = sk_c6 ),
inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_52,c_0_51]),c_0_51]) ).
cnf(c_0_55,negated_conjecture,
( multiply(sk_c8,sk_c1) = identity
| multiply(sk_c5,sk_c8) = sk_c7 ),
inference(spm,[status(thm)],[c_0_15,c_0_20]) ).
cnf(c_0_56,negated_conjecture,
( inverse(sk_c5) = sk_c8
| multiply(sk_c8,sk_c1) = identity ),
inference(spm,[status(thm)],[c_0_15,c_0_26]) ).
cnf(c_0_57,negated_conjecture,
( inverse(sk_c6) = sk_c7
| inverse(sk_c1) = sk_c8 ),
prove_this_6 ).
cnf(c_0_58,negated_conjecture,
( inverse(X3) != sk_c8
| inverse(X2) != sk_c6
| inverse(X1) != sk_c8
| multiply(X3,sk_c8) != sk_c6
| multiply(X2,sk_c6) != sk_c6
| multiply(X1,sk_c8) != sk_c6
| multiply(sk_c6,sk_c6) != sk_c6
| multiply(sk_c6,sk_c2) = sk_c6 ),
inference(spm,[status(thm)],[c_0_53,c_0_54]) ).
cnf(c_0_59,plain,
multiply(sk_c6,X1) = X1,
inference(rw,[status(thm)],[c_0_33,c_0_51]) ).
cnf(c_0_60,negated_conjecture,
( multiply(sk_c5,sk_c8) = sk_c7
| multiply(sk_c8,sk_c1) = sk_c7 ),
inference(rw,[status(thm)],[c_0_55,c_0_30]) ).
cnf(c_0_61,negated_conjecture,
( inverse(sk_c5) = sk_c8
| multiply(sk_c8,sk_c1) = sk_c7 ),
inference(rw,[status(thm)],[c_0_56,c_0_30]) ).
cnf(c_0_62,negated_conjecture,
( inverse(sk_c6) = sk_c7
| multiply(sk_c8,sk_c1) = identity ),
inference(spm,[status(thm)],[c_0_15,c_0_57]) ).
cnf(c_0_63,negated_conjecture,
( inverse(sk_c5) = sk_c8
| inverse(sk_c2) = sk_c6 ),
prove_this_11 ).
cnf(c_0_64,negated_conjecture,
( inverse(X3) != sk_c8
| inverse(X2) != sk_c6
| inverse(X1) != sk_c8
| multiply(X3,sk_c8) != sk_c6
| multiply(X2,sk_c6) != sk_c6
| multiply(X1,sk_c8) != sk_c6
| sk_c2 = sk_c6 ),
inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_58,c_0_59]),c_0_59])]) ).
cnf(c_0_65,negated_conjecture,
( multiply(sk_c8,sk_c1) = sk_c6
| multiply(sk_c5,sk_c8) = sk_c6 ),
inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_60,c_0_51]),c_0_51]) ).
cnf(c_0_66,negated_conjecture,
( inverse(sk_c5) = sk_c8
| multiply(sk_c8,sk_c1) = sk_c6 ),
inference(rw,[status(thm)],[c_0_61,c_0_51]) ).
cnf(c_0_67,negated_conjecture,
( inverse(sk_c6) = sk_c7
| multiply(sk_c8,sk_c1) = sk_c7 ),
inference(rw,[status(thm)],[c_0_62,c_0_30]) ).
cnf(c_0_68,negated_conjecture,
( inverse(sk_c5) = sk_c8
| multiply(sk_c6,sk_c2) = identity ),
inference(spm,[status(thm)],[c_0_15,c_0_63]) ).
cnf(c_0_69,negated_conjecture,
( inverse(X2) != sk_c8
| inverse(X1) != sk_c6
| multiply(X2,sk_c8) != sk_c6
| multiply(X1,sk_c6) != sk_c6
| sk_c2 = sk_c6
| multiply(sk_c8,sk_c1) = sk_c6 ),
inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_64,c_0_65]),c_0_66]) ).
cnf(c_0_70,negated_conjecture,
( inverse(sk_c6) = sk_c6
| multiply(sk_c8,sk_c1) = sk_c6 ),
inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_67,c_0_51]),c_0_51]) ).
cnf(c_0_71,negated_conjecture,
( inverse(sk_c5) = sk_c8
| multiply(sk_c6,sk_c2) = sk_c7 ),
inference(rw,[status(thm)],[c_0_68,c_0_30]) ).
cnf(c_0_72,negated_conjecture,
( inverse(X1) != sk_c8
| multiply(X1,sk_c8) != sk_c6
| sk_c2 = sk_c6
| multiply(sk_c8,sk_c1) = sk_c6 ),
inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_69,c_0_59]),c_0_70]) ).
cnf(c_0_73,negated_conjecture,
( inverse(sk_c5) = sk_c8
| multiply(sk_c6,sk_c2) = sk_c6 ),
inference(rw,[status(thm)],[c_0_71,c_0_51]) ).
cnf(c_0_74,negated_conjecture,
( sk_c2 = sk_c6
| multiply(sk_c8,sk_c1) = sk_c6 ),
inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_72,c_0_65]),c_0_66]) ).
cnf(c_0_75,plain,
multiply(inverse(X1),X1) = sk_c6,
inference(rw,[status(thm)],[c_0_45,c_0_51]) ).
cnf(c_0_76,negated_conjecture,
( sk_c2 = sk_c6
| inverse(sk_c5) = sk_c8 ),
inference(rw,[status(thm)],[c_0_73,c_0_59]) ).
cnf(c_0_77,negated_conjecture,
( sk_c2 = sk_c6
| multiply(inverse(sk_c8),sk_c6) = sk_c1 ),
inference(spm,[status(thm)],[c_0_17,c_0_74]) ).
cnf(c_0_78,negated_conjecture,
( sk_c2 = sk_c6
| multiply(sk_c8,sk_c5) = sk_c6 ),
inference(spm,[status(thm)],[c_0_75,c_0_76]) ).
cnf(c_0_79,negated_conjecture,
( sk_c2 = sk_c6
| multiply(inverse(sk_c8),X1) = multiply(sk_c1,X1) ),
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_14,c_0_77]),c_0_59]) ).
cnf(c_0_80,negated_conjecture,
( sk_c2 = sk_c6
| multiply(inverse(sk_c8),sk_c6) = sk_c5 ),
inference(spm,[status(thm)],[c_0_17,c_0_78]) ).
cnf(c_0_81,negated_conjecture,
( inverse(X4) != sk_c8
| inverse(X3) != sk_c6
| inverse(X1) != sk_c6
| inverse(X2) != sk_c8
| multiply(X4,sk_c8) != sk_c7
| multiply(X3,sk_c6) != sk_c7
| multiply(X2,sk_c8) != sk_c7
| multiply(sk_c6,multiply(X1,sk_c6)) != sk_c7
| multiply(sk_c8,sk_c1) = identity ),
inference(spm,[status(thm)],[c_0_38,c_0_62]) ).
cnf(c_0_82,negated_conjecture,
( sk_c2 = sk_c6
| multiply(sk_c1,sk_c6) = sk_c5 ),
inference(spm,[status(thm)],[c_0_79,c_0_80]) ).
cnf(c_0_83,negated_conjecture,
( inverse(X3) != sk_c8
| inverse(X2) != sk_c6
| inverse(X1) != sk_c8
| inverse(identity) != sk_c6
| multiply(X3,sk_c8) != sk_c7
| multiply(X2,sk_c6) != sk_c7
| multiply(X1,sk_c8) != sk_c7
| multiply(sk_c6,sk_c6) != sk_c7
| multiply(sk_c8,sk_c1) = identity ),
inference(spm,[status(thm)],[c_0_81,c_0_16]) ).
cnf(c_0_84,negated_conjecture,
( sk_c2 = sk_c6
| multiply(sk_c1,sk_c8) = sk_c6 ),
inference(spm,[status(thm)],[c_0_75,c_0_79]) ).
cnf(c_0_85,negated_conjecture,
( sk_c2 = sk_c6
| multiply(sk_c1,X1) = multiply(sk_c5,X1) ),
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_14,c_0_82]),c_0_59]) ).
cnf(c_0_86,negated_conjecture,
( inverse(X3) != sk_c8
| inverse(X2) != sk_c6
| inverse(X1) != sk_c8
| inverse(sk_c7) != sk_c6
| multiply(X3,sk_c8) != sk_c7
| multiply(X2,sk_c6) != sk_c7
| multiply(X1,sk_c8) != sk_c7
| multiply(sk_c6,sk_c6) != sk_c7
| multiply(sk_c8,sk_c1) = sk_c7 ),
inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_83,c_0_30]),c_0_30]) ).
cnf(c_0_87,negated_conjecture,
( sk_c2 = sk_c6
| multiply(sk_c5,sk_c8) = sk_c6 ),
inference(spm,[status(thm)],[c_0_84,c_0_85]) ).
cnf(c_0_88,negated_conjecture,
( inverse(X3) != sk_c8
| inverse(X2) != sk_c6
| inverse(X1) != sk_c8
| inverse(sk_c6) != sk_c6
| multiply(X3,sk_c8) != sk_c6
| multiply(X2,sk_c6) != sk_c6
| multiply(X1,sk_c8) != sk_c6
| multiply(sk_c6,sk_c6) != sk_c6
| multiply(sk_c8,sk_c1) = sk_c6 ),
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_86,c_0_51]),c_0_51]),c_0_51]),c_0_51]),c_0_51]),c_0_51]) ).
cnf(c_0_89,negated_conjecture,
( inverse(X2) != sk_c8
| inverse(X1) != sk_c6
| multiply(X2,sk_c8) != sk_c6
| multiply(X1,sk_c6) != sk_c6
| sk_c2 = sk_c6 ),
inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_64,c_0_87]),c_0_76]) ).
cnf(c_0_90,negated_conjecture,
( sk_c2 = sk_c6
| inverse(sk_c6) = sk_c6 ),
inference(rw,[status(thm)],[c_0_54,c_0_59]) ).
cnf(c_0_91,negated_conjecture,
( inverse(X3) != sk_c8
| inverse(X2) != sk_c6
| inverse(X1) != sk_c8
| multiply(X3,sk_c8) != sk_c6
| multiply(X2,sk_c6) != sk_c6
| multiply(X1,sk_c8) != sk_c6
| multiply(sk_c6,sk_c6) != sk_c6
| multiply(sk_c8,sk_c1) = sk_c6 ),
inference(spm,[status(thm)],[c_0_88,c_0_70]) ).
cnf(c_0_92,negated_conjecture,
( inverse(X1) != sk_c8
| multiply(X1,sk_c8) != sk_c6
| sk_c2 = sk_c6 ),
inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_89,c_0_59]),c_0_90]) ).
cnf(c_0_93,negated_conjecture,
( inverse(X3) != sk_c8
| inverse(X2) != sk_c6
| inverse(X1) != sk_c8
| multiply(X3,sk_c8) != sk_c6
| multiply(X2,sk_c6) != sk_c6
| multiply(X1,sk_c8) != sk_c6
| multiply(sk_c8,sk_c1) = sk_c6 ),
inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_91,c_0_59])]) ).
cnf(c_0_94,negated_conjecture,
( inverse(sk_c6) = sk_c6
| inverse(sk_c2) = sk_c6 ),
inference(rw,[status(thm)],[c_0_35,c_0_51]) ).
cnf(c_0_95,negated_conjecture,
sk_c2 = sk_c6,
inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_92,c_0_76]),c_0_87]) ).
cnf(c_0_96,negated_conjecture,
( inverse(X2) != sk_c8
| inverse(X1) != sk_c6
| multiply(X2,sk_c8) != sk_c6
| multiply(X1,sk_c6) != sk_c6
| multiply(sk_c8,sk_c1) = sk_c6 ),
inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_93,c_0_65]),c_0_66]) ).
cnf(c_0_97,negated_conjecture,
inverse(sk_c6) = sk_c6,
inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_94,c_0_95])]) ).
cnf(c_0_98,negated_conjecture,
( inverse(X1) != sk_c8
| multiply(X1,sk_c8) != sk_c6
| multiply(sk_c8,sk_c1) = sk_c6 ),
inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_96,c_0_59]),c_0_97])]) ).
cnf(c_0_99,negated_conjecture,
multiply(sk_c8,sk_c1) = sk_c6,
inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_98,c_0_66]),c_0_65]) ).
cnf(c_0_100,negated_conjecture,
multiply(inverse(sk_c8),sk_c6) = sk_c1,
inference(spm,[status(thm)],[c_0_17,c_0_99]) ).
cnf(c_0_101,negated_conjecture,
multiply(inverse(inverse(sk_c8)),sk_c1) = sk_c6,
inference(spm,[status(thm)],[c_0_17,c_0_100]) ).
cnf(c_0_102,plain,
multiply(inverse(inverse(X1)),sk_c6) = X1,
inference(spm,[status(thm)],[c_0_17,c_0_75]) ).
cnf(c_0_103,negated_conjecture,
inverse(sk_c8) = sk_c1,
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_17,c_0_101]),c_0_102]) ).
cnf(c_0_104,negated_conjecture,
( inverse(X4) != sk_c8
| inverse(X3) != sk_c6
| inverse(X1) != sk_c6
| inverse(X2) != sk_c8
| inverse(sk_c6) != sk_c6
| multiply(X4,sk_c8) != sk_c6
| multiply(X3,sk_c6) != sk_c6
| multiply(X2,sk_c8) != sk_c6
| multiply(sk_c6,multiply(X1,sk_c6)) != sk_c6 ),
inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_38,c_0_51]),c_0_51]),c_0_51]),c_0_51]),c_0_51]) ).
cnf(c_0_105,negated_conjecture,
multiply(inverse(sk_c1),sk_c6) = sk_c8,
inference(spm,[status(thm)],[c_0_102,c_0_103]) ).
cnf(c_0_106,negated_conjecture,
( inverse(X4) != sk_c8
| inverse(X3) != sk_c6
| inverse(X1) != sk_c6
| inverse(X2) != sk_c8
| multiply(X4,sk_c8) != sk_c6
| multiply(X3,sk_c6) != sk_c6
| multiply(X2,sk_c8) != sk_c6
| multiply(X1,sk_c6) != sk_c6 ),
inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_104,c_0_59]),c_0_97])]) ).
cnf(c_0_107,negated_conjecture,
multiply(inverse(inverse(sk_c1)),sk_c8) = sk_c6,
inference(spm,[status(thm)],[c_0_17,c_0_105]) ).
cnf(c_0_108,negated_conjecture,
( inverse(X3) != sk_c8
| inverse(X2) != sk_c6
| inverse(X1) != sk_c8
| multiply(X3,sk_c8) != sk_c6
| multiply(X2,sk_c6) != sk_c6
| multiply(X1,sk_c8) != sk_c6 ),
inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_106,c_0_59]),c_0_97])]) ).
cnf(c_0_109,negated_conjecture,
multiply(sk_c1,sk_c8) = sk_c6,
inference(spm,[status(thm)],[c_0_75,c_0_103]) ).
cnf(c_0_110,negated_conjecture,
inverse(sk_c1) = sk_c8,
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_17,c_0_107]),c_0_102]) ).
cnf(c_0_111,negated_conjecture,
( inverse(X2) != sk_c8
| inverse(X1) != sk_c6
| multiply(X2,sk_c8) != sk_c6
| multiply(X1,sk_c6) != sk_c6 ),
inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_108,c_0_109]),c_0_110])]) ).
cnf(c_0_112,negated_conjecture,
( inverse(X1) != sk_c8
| multiply(X1,sk_c8) != sk_c6 ),
inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_111,c_0_59]),c_0_97])]) ).
cnf(c_0_113,negated_conjecture,
$false,
inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_112,c_0_110]),c_0_109])]),
[proof] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : GRP268-1 : TPTP v9.3.1. Released v2.5.0.
% 0.00/0.05 % Command : run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.12/0.37 % Computer : n014.cluster.edu
% 0.12/0.37 % Model : x86_64 x86_64
% 0.12/0.37 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.37 % Memory : 8046.5625MB
% 0.12/0.37 % OS : Linux 6.8.0-71-generic
% 0.12/0.37 % CPULimit : 300
% 0.12/0.37 % WCLimit : 300
% 0.12/0.37 % DateTime : Sun Sep 20 20:07:34 UTC 2026
% 0.12/0.37 % CPUTime :
% 0.12/0.37 Running run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.16/0.41 Running first-order theorem proving
% 0.16/0.41 Running: /export/starexec/sandbox2/solver/bin/eprover --delete-bad-limit=2000000000 --definitional-cnf=24 -s --print-statistics -R --print-version --proof-object --auto-schedule=8 --cpu-limit=300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.16/0.45 % Version: 3.5.1
% 0.16/0.45 % Preprocessing class: FSMSSMSMSSSNFFN.
% 0.16/0.45 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.16/0.45 % Starting G-E--_207_C18_F1_SE_CS_SP_PI_PS_S2SI with 1500s (5) cores
% 0.16/0.45 % Starting new_bool_3 with 300s (1) cores
% 0.16/0.45 % Starting new_bool_1 with 300s (1) cores
% 0.16/0.45 % Starting sh5l with 300s (1) cores
% 0.16/0.45 % G-E--_207_C18_F1_SE_CS_SP_PI_PS_S2SI with pid 2239471 completed with status 0
% 0.16/0.45 % Result found by G-E--_207_C18_F1_SE_CS_SP_PI_PS_S2SI
% 0.16/0.45 % Preprocessing class: FSMSSMSMSSSNFFN.
% 0.16/0.45 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.16/0.45 % Starting G-E--_207_C18_F1_SE_CS_SP_PI_PS_S2SI with 1500s (5) cores
% 0.16/0.45 % (lift_lambdas = 1, lambda_to_forall = 1,unroll_only_formulas = 1, sine = Auto)
% 0.16/0.45 % No SInE strategy applied
% 0.16/0.45 % Search class: FGHPS-FFMM21-SFFFFFNN
% 0.16/0.45 % Scheduled 7 strats onto 5 cores with 1500 seconds (1500 total)
% 0.16/0.45 % Starting SubtermCWHack with 136s (1) cores
% 0.16/0.45 % Starting G-E--_207_C18_F1_SE_CS_SP_PI_PS_S2SI with 151s (1) cores
% 0.16/0.45 % Starting G-E--_208_C18_F1_SE_CS_SP_PS_S5PRR_RG_S04AN with 136s (1) cores
% 0.16/0.45 % Starting new_bool_3 with 136s (1) cores
% 0.16/0.45 % Starting new_bool_1 with 136s (1) cores
% 0.16/0.45 % G-E--_208_C18_F1_SE_CS_SP_PS_S5PRR_RG_S04AN with pid 2239477 completed with status 0
% 0.16/0.45 % Result found by G-E--_208_C18_F1_SE_CS_SP_PS_S5PRR_RG_S04AN
% 0.16/0.45 % Preprocessing class: FSMSSMSMSSSNFFN.
% 0.16/0.45 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.16/0.45 % Starting G-E--_207_C18_F1_SE_CS_SP_PI_PS_S2SI with 1500s (5) cores
% 0.16/0.45 % (lift_lambdas = 1, lambda_to_forall = 1,unroll_only_formulas = 1, sine = Auto)
% 0.16/0.45 % No SInE strategy applied
% 0.16/0.45 % Search class: FGHPS-FFMM21-SFFFFFNN
% 0.16/0.45 % Scheduled 7 strats onto 5 cores with 1500 seconds (1500 total)
% 0.16/0.45 % Starting SubtermCWHack with 136s (1) cores
% 0.16/0.45 % Starting G-E--_207_C18_F1_SE_CS_SP_PI_PS_S2SI with 151s (1) cores
% 0.16/0.45 % Starting G-E--_208_C18_F1_SE_CS_SP_PS_S5PRR_RG_S04AN with 136s (1) cores
% 0.16/0.45 % Preprocessing time : 0.001 s
% 0.16/0.45 % Presaturation interreduction done
% 0.16/0.45
% 0.16/0.45 % Proof found!
% 0.16/0.45 % SZS status Unsatisfiable
% 0.16/0.45 % SZS output start CNFRefutation
% See solution above
% 0.16/0.45 % Parsed axioms : 25
% 0.16/0.45 % Removed by relevancy pruning/SinE : 0
% 0.16/0.45 % Initial clauses : 25
% 0.16/0.45 % Removed in clause preprocessing : 0
% 0.16/0.45 % Initial clauses in saturation : 25
% 0.16/0.45 % Processed clauses : 495
% 0.16/0.45 % ...of these trivial : 28
% 0.16/0.45 % ...subsumed : 131
% 0.16/0.45 % ...remaining for further processing : 336
% 0.16/0.45 % Other redundant clauses eliminated : 6
% 0.16/0.45 % Clauses deleted for lack of memory : 0
% 0.16/0.45 % Backward-subsumed : 59
% 0.16/0.45 % Backward-rewritten : 228
% 0.16/0.45 % Generated clauses : 1254
% 0.16/0.45 % ...of the previous two non-redundant : 1252
% 0.16/0.45 % ...aggressively subsumed : 0
% 0.16/0.45 % Contextual simplify-reflections : 12
% 0.16/0.45 % Paramodulations : 1248
% 0.16/0.45 % Factorizations : 0
% 0.16/0.45 % NegExts : 0
% 0.16/0.45 % Equation resolutions : 6
% 0.16/0.45 % Disequality decompositions : 0
% 0.16/0.45 % Total rewrite steps : 911
% 0.16/0.45 % ...of those cached : 848
% 0.16/0.45 % Propositional unsat checks : 0
% 0.16/0.45 % Propositional check models : 0
% 0.16/0.45 % Propositional check unsatisfiable : 0
% 0.16/0.45 % Propositional clauses : 0
% 0.16/0.45 % Propositional clauses after purity: 0
% 0.16/0.45 % Propositional unsat core size : 0
% 0.16/0.45 % Propositional preprocessing time : 0.000
% 0.16/0.45 % Propositional encoding time : 0.000
% 0.16/0.45 % Propositional solver time : 0.000
% 0.16/0.45 % Success case prop preproc time : 0.000
% 0.16/0.45 % Success case prop encoding time : 0.000
% 0.16/0.45 % Success case prop solver time : 0.000
% 0.16/0.45 % Current number of processed clauses : 23
% 0.16/0.45 % Positive orientable unit clauses : 22
% 0.16/0.45 % Positive unorientable unit clauses: 0
% 0.16/0.45 % Negative unit clauses : 0
% 0.16/0.45 % Non-unit-clauses : 1
% 0.16/0.45 % Current number of unprocessed clauses: 334
% 0.16/0.45 % ...number of literals in the above : 2777
% 0.16/0.45 % Current number of archived formulas : 0
% 0.16/0.45 % Current number of archived clauses : 312
% 0.16/0.45 % Clause-clause subsumption calls (NU) : 951
% 0.16/0.45 % Rec. Clause-clause subsumption calls : 665
% 0.16/0.45 % Non-unit clause-clause subsumptions : 180
% 0.16/0.45 % Unit Clause-clause subsumption calls : 229
% 0.16/0.45 % Rewrite failures with RHS unbound : 0
% 0.16/0.45 % BW rewrite match attempts : 33
% 0.16/0.45 % BW rewrite match successes : 22
% 0.16/0.45 % Condensation attempts : 0
% 0.16/0.45 % Condensation successes : 0
% 0.16/0.45 % Termbank termtop insertions : 22716
% 0.16/0.45 % Search garbage collected termcells : 28
% 0.16/0.45
% 0.16/0.45 % -------------------------------------------------
% 0.16/0.45 % User time : 0.023 s
% 0.16/0.45 % System time : 0.002 s
% 0.16/0.45 % Total time : 0.025 s
% 0.16/0.45 % Maximum resident set size: 3644 pages
% 0.16/0.45
% 0.16/0.45 % -------------------------------------------------
% 0.16/0.45 % User time : 0.089 s
% 0.16/0.45 % System time : 0.013 s
% 0.16/0.45 % Total time : 0.102 s
% 0.16/0.45 % Maximum resident set size: 4864 pages
% 0.16/0.45 % E exiting
%------------------------------------------------------------------------------