%------------------------------------------------------------------------------
% File : CSE_E---1.7
% Problem : GRP299-1 : TPTP v9.2.1. Released v2.5.0.
% Transfm : none
% Format : tptp:raw
% Command : /export/starexec/sandbox2/solver/bin/lemma_parallel_prover %s --lemma-prover /export/starexec/sandbox2/solver/bin/cse --final-prover /export/starexec/sandbox2/solver/bin/eprover --proof-time %d --global-time-limit %d
% Computer : n005.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 : Tue May 5 04:25:20 PM UTC 2026
% Result : Unsatisfiable 1.61s 1.83s
% Output : CNFRefutation 1.61s
% Verified :
% SZS Type : Refutation
% Derivation depth : 19
% Number of leaves : 17
% Syntax : Number of clauses : 85 ( 20 unt; 49 nHn; 69 RR)
% Number of literals : 210 ( 209 equ; 87 neg)
% Maximal clause size : 10 ( 2 avg)
% Maximal term depth : 4 ( 1 avg)
% Number of predicates : 2 ( 0 usr; 1 prp; 0-2 aty)
% Number of functors : 10 ( 10 usr; 8 con; 0-2 aty)
% Number of variables : 57 ( 9 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_14,negated_conjecture,
( inverse(sk_c1) = sk_c7
| inverse(sk_c2) = sk_c7 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_14) ).
cnf(prove_this_17,negated_conjecture,
( inverse(sk_c1) = sk_c7
| inverse(sk_c3) = sk_c4 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_17) ).
cnf(prove_this_10,negated_conjecture,
( multiply(sk_c1,sk_c7) = sk_c6
| multiply(sk_c3,sk_c4) = sk_c6 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_10) ).
cnf(prove_this_8,negated_conjecture,
( multiply(sk_c1,sk_c7) = sk_c6
| inverse(sk_c2) = sk_c7 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_8) ).
cnf(prove_this_16,negated_conjecture,
( inverse(sk_c1) = sk_c7
| multiply(sk_c3,sk_c4) = sk_c6 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_16) ).
cnf(prove_this_11,negated_conjecture,
( multiply(sk_c1,sk_c7) = sk_c6
| inverse(sk_c3) = sk_c4 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_11) ).
cnf(prove_this_4,negated_conjecture,
( multiply(sk_c7,sk_c6) = sk_c5
| multiply(sk_c3,sk_c4) = sk_c6 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_4) ).
cnf(prove_this_25,negated_conjecture,
( multiply(sk_c7,sk_c6) != sk_c5
| multiply(X1,sk_c7) != sk_c6
| inverse(X1) != sk_c7
| multiply(sk_c5,sk_c7) != sk_c6
| multiply(sk_c6,sk_c7) != sk_c5
| inverse(X2) != sk_c7
| multiply(X2,sk_c6) != sk_c7
| multiply(X3,X4) != sk_c6
| inverse(X3) != X4
| multiply(X4,sk_c7) != sk_c6 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_25) ).
cnf(prove_this_5,negated_conjecture,
( multiply(sk_c7,sk_c6) = sk_c5
| inverse(sk_c3) = sk_c4 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_5) ).
cnf(prove_this_3,negated_conjecture,
( multiply(sk_c7,sk_c6) = sk_c5
| multiply(sk_c2,sk_c6) = sk_c7 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_3) ).
cnf(prove_this_21,negated_conjecture,
( multiply(sk_c5,sk_c7) = sk_c6
| multiply(sk_c2,sk_c6) = sk_c7 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_21) ).
cnf(prove_this_2,negated_conjecture,
( multiply(sk_c7,sk_c6) = sk_c5
| inverse(sk_c2) = sk_c7 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_2) ).
cnf(prove_this_20,negated_conjecture,
( multiply(sk_c5,sk_c7) = sk_c6
| inverse(sk_c2) = sk_c7 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_20) ).
cnf(prove_this_1,negated_conjecture,
( multiply(sk_c7,sk_c6) = sk_c5
| multiply(sk_c6,sk_c7) = sk_c5 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_this_1) ).
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,plain,
multiply(inverse(inverse(X1)),identity) = X1,
inference(spm,[status(thm)],[c_0_20,c_0_18]) ).
cnf(c_0_22,plain,
multiply(inverse(inverse(X1)),X2) = multiply(X1,X2),
inference(spm,[status(thm)],[c_0_20,c_0_20]) ).
cnf(c_0_23,plain,
multiply(X1,identity) = X1,
inference(rw,[status(thm)],[c_0_21,c_0_22]) ).
cnf(c_0_24,plain,
inverse(inverse(X1)) = X1,
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_22,c_0_23]),c_0_23]) ).
cnf(c_0_25,negated_conjecture,
( inverse(sk_c1) = sk_c7
| inverse(sk_c2) = sk_c7 ),
prove_this_14 ).
cnf(c_0_26,plain,
multiply(X1,inverse(X1)) = identity,
inference(spm,[status(thm)],[c_0_18,c_0_24]) ).
cnf(c_0_27,negated_conjecture,
( inverse(sk_c1) = sk_c7
| inverse(sk_c3) = sk_c4 ),
prove_this_17 ).
cnf(c_0_28,negated_conjecture,
( inverse(sk_c1) = sk_c7
| inverse(sk_c7) = sk_c2 ),
inference(spm,[status(thm)],[c_0_24,c_0_25]) ).
cnf(c_0_29,negated_conjecture,
( multiply(sk_c1,sk_c7) = sk_c6
| multiply(sk_c3,sk_c4) = sk_c6 ),
prove_this_10 ).
cnf(c_0_30,negated_conjecture,
( multiply(sk_c1,sk_c7) = sk_c6
| inverse(sk_c2) = sk_c7 ),
prove_this_8 ).
cnf(c_0_31,negated_conjecture,
( multiply(sk_c7,sk_c2) = identity
| inverse(sk_c1) = sk_c7 ),
inference(spm,[status(thm)],[c_0_18,c_0_25]) ).
cnf(c_0_32,negated_conjecture,
( inverse(sk_c1) = sk_c7
| multiply(sk_c3,sk_c4) = sk_c6 ),
prove_this_16 ).
cnf(c_0_33,negated_conjecture,
( multiply(sk_c3,sk_c4) = identity
| inverse(sk_c1) = sk_c7 ),
inference(spm,[status(thm)],[c_0_26,c_0_27]) ).
cnf(c_0_34,negated_conjecture,
( inverse(sk_c7) = sk_c2
| inverse(sk_c7) = sk_c1 ),
inference(spm,[status(thm)],[c_0_24,c_0_28]) ).
cnf(c_0_35,negated_conjecture,
( multiply(inverse(sk_c3),sk_c6) = sk_c4
| multiply(sk_c1,sk_c7) = sk_c6 ),
inference(spm,[status(thm)],[c_0_20,c_0_29]) ).
cnf(c_0_36,negated_conjecture,
( multiply(sk_c1,sk_c7) = sk_c6
| inverse(sk_c3) = sk_c4 ),
prove_this_11 ).
cnf(c_0_37,negated_conjecture,
( multiply(sk_c1,sk_c7) = sk_c6
| multiply(sk_c7,sk_c2) = identity ),
inference(spm,[status(thm)],[c_0_18,c_0_30]) ).
cnf(c_0_38,negated_conjecture,
( multiply(sk_c7,sk_c2) = identity
| multiply(sk_c1,sk_c7) = identity ),
inference(spm,[status(thm)],[c_0_26,c_0_31]) ).
cnf(c_0_39,negated_conjecture,
( multiply(sk_c3,sk_c4) = sk_c6
| multiply(sk_c7,sk_c1) = identity ),
inference(spm,[status(thm)],[c_0_18,c_0_32]) ).
cnf(c_0_40,negated_conjecture,
( multiply(sk_c3,sk_c4) = identity
| multiply(sk_c7,sk_c1) = identity ),
inference(spm,[status(thm)],[c_0_18,c_0_33]) ).
cnf(c_0_41,negated_conjecture,
( inverse(sk_c7) = sk_c1
| sk_c2 != sk_c1 ),
inference(ef,[status(thm)],[c_0_34]) ).
cnf(c_0_42,negated_conjecture,
( multiply(sk_c1,sk_c7) = sk_c6
| multiply(sk_c4,sk_c6) = sk_c4 ),
inference(spm,[status(thm)],[c_0_35,c_0_36]) ).
cnf(c_0_43,negated_conjecture,
( multiply(sk_c7,sk_c6) = sk_c5
| multiply(sk_c3,sk_c4) = sk_c6 ),
prove_this_4 ).
cnf(c_0_44,negated_conjecture,
( multiply(sk_c7,sk_c6) != sk_c5
| multiply(X1,sk_c7) != sk_c6
| inverse(X1) != sk_c7
| multiply(sk_c5,sk_c7) != sk_c6
| multiply(sk_c6,sk_c7) != sk_c5
| inverse(X2) != sk_c7
| multiply(X2,sk_c6) != sk_c7
| multiply(X3,X4) != sk_c6
| inverse(X3) != X4
| multiply(X4,sk_c7) != sk_c6 ),
prove_this_25 ).
cnf(c_0_45,negated_conjecture,
( multiply(sk_c7,sk_c2) = identity
| identity = sk_c6 ),
inference(spm,[status(thm)],[c_0_37,c_0_38]) ).
cnf(c_0_46,negated_conjecture,
( multiply(sk_c7,sk_c1) = identity
| identity = sk_c6 ),
inference(spm,[status(thm)],[c_0_39,c_0_40]) ).
cnf(c_0_47,negated_conjecture,
( multiply(sk_c1,sk_c7) = identity
| sk_c2 != sk_c1 ),
inference(spm,[status(thm)],[c_0_18,c_0_41]) ).
cnf(c_0_48,negated_conjecture,
( multiply(sk_c1,sk_c7) = sk_c6
| identity = sk_c6 ),
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_20,c_0_42]),c_0_18]) ).
cnf(c_0_49,negated_conjecture,
( multiply(inverse(sk_c3),sk_c6) = sk_c4
| multiply(sk_c7,sk_c6) = sk_c5 ),
inference(spm,[status(thm)],[c_0_20,c_0_43]) ).
cnf(c_0_50,negated_conjecture,
( multiply(sk_c7,sk_c6) = sk_c5
| inverse(sk_c3) = sk_c4 ),
prove_this_5 ).
cnf(c_0_51,negated_conjecture,
( multiply(inverse(X1),sk_c7) != sk_c6
| multiply(sk_c7,sk_c6) != sk_c5
| multiply(sk_c6,sk_c7) != sk_c5
| multiply(sk_c5,sk_c7) != sk_c6
| multiply(X1,inverse(X1)) != sk_c6
| multiply(X2,sk_c6) != sk_c7
| multiply(X3,sk_c7) != sk_c6
| inverse(X2) != sk_c7
| inverse(X3) != sk_c7 ),
inference(er,[status(thm)],[c_0_44]) ).
cnf(c_0_52,negated_conjecture,
( inverse(sk_c7) = sk_c2
| identity = sk_c6 ),
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_20,c_0_45]),c_0_23]) ).
cnf(c_0_53,negated_conjecture,
( inverse(sk_c7) = sk_c1
| identity = sk_c6 ),
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_20,c_0_46]),c_0_23]) ).
cnf(c_0_54,negated_conjecture,
( identity = sk_c6
| sk_c2 != sk_c1 ),
inference(spm,[status(thm)],[c_0_47,c_0_48]) ).
cnf(c_0_55,negated_conjecture,
( multiply(sk_c7,sk_c6) = sk_c5
| multiply(sk_c2,sk_c6) = sk_c7 ),
prove_this_3 ).
cnf(c_0_56,negated_conjecture,
( multiply(sk_c5,sk_c7) = sk_c6
| multiply(sk_c2,sk_c6) = sk_c7 ),
prove_this_21 ).
cnf(c_0_57,plain,
multiply(inverse(multiply(X1,X2)),multiply(X1,multiply(X2,X3))) = X3,
inference(spm,[status(thm)],[c_0_20,c_0_17]) ).
cnf(c_0_58,negated_conjecture,
( multiply(sk_c7,sk_c6) = sk_c5
| multiply(sk_c4,sk_c6) = sk_c4 ),
inference(spm,[status(thm)],[c_0_49,c_0_50]) ).
cnf(c_0_59,negated_conjecture,
( multiply(inverse(X1),sk_c7) != sk_c6
| multiply(sk_c7,sk_c6) != sk_c5
| multiply(sk_c6,sk_c7) != sk_c5
| multiply(sk_c5,sk_c7) != sk_c6
| multiply(X2,sk_c6) != sk_c7
| multiply(X3,sk_c7) != sk_c6
| inverse(X2) != sk_c7
| inverse(X3) != sk_c7
| identity != sk_c6 ),
inference(rw,[status(thm)],[c_0_51,c_0_26]) ).
cnf(c_0_60,negated_conjecture,
identity = sk_c6,
inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_52,c_0_53]),c_0_54]) ).
cnf(c_0_61,negated_conjecture,
( multiply(inverse(sk_c2),sk_c7) = sk_c6
| multiply(sk_c7,sk_c6) = sk_c5 ),
inference(spm,[status(thm)],[c_0_20,c_0_55]) ).
cnf(c_0_62,negated_conjecture,
( multiply(sk_c7,sk_c6) = sk_c5
| inverse(sk_c2) = sk_c7 ),
prove_this_2 ).
cnf(c_0_63,negated_conjecture,
( multiply(inverse(sk_c2),sk_c7) = sk_c6
| multiply(sk_c5,sk_c7) = sk_c6 ),
inference(spm,[status(thm)],[c_0_20,c_0_56]) ).
cnf(c_0_64,negated_conjecture,
( multiply(sk_c5,sk_c7) = sk_c6
| inverse(sk_c2) = sk_c7 ),
prove_this_20 ).
cnf(c_0_65,negated_conjecture,
( multiply(sk_c7,sk_c6) = sk_c5
| multiply(sk_c6,sk_c7) = sk_c5 ),
prove_this_1 ).
cnf(c_0_66,negated_conjecture,
( multiply(sk_c7,sk_c6) = sk_c5
| multiply(sk_c6,X1) = X1 ),
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_57,c_0_58]),c_0_20]) ).
cnf(c_0_67,negated_conjecture,
( multiply(inverse(X1),sk_c7) != sk_c6
| multiply(sk_c7,sk_c6) != sk_c5
| multiply(sk_c6,sk_c7) != sk_c5
| multiply(sk_c5,sk_c7) != sk_c6
| multiply(X2,sk_c6) != sk_c7
| multiply(X3,sk_c7) != sk_c6
| inverse(X2) != sk_c7
| inverse(X3) != sk_c7 ),
inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_59,c_0_60])]) ).
cnf(c_0_68,negated_conjecture,
( multiply(sk_c7,sk_c6) = sk_c5
| multiply(sk_c7,sk_c7) = sk_c6 ),
inference(spm,[status(thm)],[c_0_61,c_0_62]) ).
cnf(c_0_69,negated_conjecture,
( multiply(sk_c5,sk_c7) = sk_c6
| multiply(sk_c7,sk_c7) = sk_c6 ),
inference(spm,[status(thm)],[c_0_63,c_0_64]) ).
cnf(c_0_70,plain,
multiply(X1,sk_c6) = X1,
inference(rw,[status(thm)],[c_0_23,c_0_60]) ).
cnf(c_0_71,negated_conjecture,
( multiply(sk_c7,sk_c6) = sk_c5
| sk_c5 = sk_c7 ),
inference(spm,[status(thm)],[c_0_65,c_0_66]) ).
cnf(c_0_72,negated_conjecture,
( multiply(sk_c7,sk_c7) = sk_c6
| multiply(inverse(X1),sk_c7) != sk_c6
| multiply(sk_c6,sk_c7) != sk_c5
| multiply(X2,sk_c6) != sk_c7
| multiply(X3,sk_c7) != sk_c6
| inverse(X2) != sk_c7
| inverse(X3) != sk_c7 ),
inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_67,c_0_68]),c_0_69]) ).
cnf(c_0_73,negated_conjecture,
( multiply(inverse(X1),sk_c7) != sk_c6
| multiply(sk_c6,sk_c7) != sk_c5
| multiply(sk_c5,sk_c7) != sk_c6
| multiply(X2,sk_c7) != sk_c6
| inverse(sk_c7) != sk_c7
| inverse(X2) != sk_c7
| sk_c5 != sk_c7 ),
inference(er,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_67,c_0_70]),c_0_70])]) ).
cnf(c_0_74,negated_conjecture,
sk_c5 = sk_c7,
inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_71,c_0_70])]) ).
cnf(c_0_75,negated_conjecture,
( multiply(sk_c7,sk_c7) = sk_c6
| multiply(inverse(X1),sk_c7) != sk_c6
| multiply(sk_c6,sk_c7) != sk_c5
| multiply(X2,sk_c7) != sk_c6
| inverse(sk_c7) != sk_c7
| inverse(X2) != sk_c7 ),
inference(er,[status(thm)],[inference(rw,[status(thm)],[c_0_72,c_0_70])]) ).
cnf(c_0_76,negated_conjecture,
( multiply(inverse(X1),sk_c7) != sk_c6
| multiply(sk_c6,sk_c7) != sk_c7
| multiply(sk_c7,sk_c7) != sk_c6
| multiply(X2,sk_c7) != sk_c6
| inverse(sk_c7) != sk_c7
| inverse(X2) != sk_c7 ),
inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_73,c_0_74]),c_0_74]),c_0_74])]) ).
cnf(c_0_77,negated_conjecture,
multiply(sk_c7,sk_c7) = sk_c6,
inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_69,c_0_74])]) ).
cnf(c_0_78,negated_conjecture,
( multiply(inverse(X1),sk_c7) != sk_c6
| multiply(sk_c6,sk_c7) != sk_c7
| multiply(X2,sk_c7) != sk_c6
| inverse(sk_c7) != sk_c7
| inverse(X2) != sk_c7 ),
inference(csr,[status(thm)],[inference(rw,[status(thm)],[c_0_75,c_0_74]),c_0_76]) ).
cnf(c_0_79,negated_conjecture,
inverse(sk_c7) = sk_c7,
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_20,c_0_77]),c_0_70]) ).
cnf(c_0_80,negated_conjecture,
( multiply(inverse(X1),sk_c7) != sk_c6
| multiply(sk_c6,sk_c7) != sk_c7
| multiply(X2,sk_c7) != sk_c6
| inverse(X2) != sk_c7 ),
inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_78,c_0_79])]) ).
cnf(c_0_81,plain,
multiply(sk_c6,X1) = X1,
inference(rw,[status(thm)],[c_0_19,c_0_60]) ).
cnf(c_0_82,negated_conjecture,
( multiply(inverse(X1),sk_c7) != sk_c6
| multiply(X2,sk_c7) != sk_c6
| inverse(X2) != sk_c7 ),
inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_80,c_0_81])]) ).
cnf(c_0_83,negated_conjecture,
( multiply(X1,sk_c7) != sk_c6
| inverse(X1) != sk_c7 ),
inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_82,c_0_79]),c_0_77])]) ).
cnf(c_0_84,negated_conjecture,
$false,
inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_83,c_0_79]),c_0_77])]),
[proof] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.11 % Problem : GRP299-1 : TPTP v9.2.1. Released v2.5.0.
% 0.00/0.11 % Command : /export/starexec/sandbox2/solver/bin/lemma_parallel_prover %s --lemma-prover /export/starexec/sandbox2/solver/bin/cse --final-prover /export/starexec/sandbox2/solver/bin/eprover --proof-time %d --global-time-limit %d
% 0.14/0.32 % Computer : n005.cluster.edu
% 0.14/0.32 % Model : x86_64 x86_64
% 0.14/0.32 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.32 % Memory : 8042.1875MB
% 0.14/0.32 % OS : Linux 3.10.0-693.el7.x86_64
% 0.14/0.32 % CPULimit : 300
% 0.14/0.32 % WCLimit : 300
% 0.14/0.32 % DateTime : Mon May 4 18:31:45 EDT 2026
% 0.14/0.32 % CPUTime :
% 0.14/0.33 % start to proof: theBenchmark
% 1.61/1.83 % Version : CSE_E---1.7
% 1.61/1.83 % Problem : theBenchmark.p
% 1.61/1.83 % SZS status Unsatisfiable for theBenchmark.p
% 1.61/1.83 % SZS output start CNFRefutation
% See solution above
% 1.61/1.83 % Total time : 1.370s
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