%------------------------------------------------------------------------------
% File : CSE_E---1.7
% Problem : GRP442-1 : TPTP v9.2.1. Released v2.6.0.
% Transfm : none
% Format : tptp:raw
% Command : /export/starexec/sandbox/solver/bin/lemma_parallel_prover %s --lemma-prover /export/starexec/sandbox/solver/bin/cse --final-prover /export/starexec/sandbox/solver/bin/eprover --proof-time %d --global-time-limit %d
% Computer : n014.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 04:26:07 PM UTC 2026
% Result : Unsatisfiable 3.75s 3.60s
% Output : CNFRefutation 3.75s
% Verified :
% SZS Type : Refutation
% Derivation depth : 29
% Number of leaves : 2
% Syntax : Number of clauses : 44 ( 44 unt; 0 nHn; 3 RR)
% Number of literals : 44 ( 43 equ; 2 neg)
% Maximal clause size : 1 ( 1 avg)
% Maximal term depth : 11 ( 3 avg)
% Number of predicates : 2 ( 0 usr; 1 prp; 0-2 aty)
% Number of functors : 4 ( 4 usr; 2 con; 0-2 aty)
% Number of variables : 127 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(single_axiom,axiom,
inverse(multiply(X1,multiply(X2,multiply(multiply(X3,inverse(X3)),inverse(multiply(X4,multiply(X1,X2))))))) = X4,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',single_axiom) ).
cnf(prove_these_axioms_1,negated_conjecture,
multiply(inverse(a1),a1) != multiply(inverse(b1),b1),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_these_axioms_1) ).
cnf(c_0_2,axiom,
inverse(multiply(X1,multiply(X2,multiply(multiply(X3,inverse(X3)),inverse(multiply(X4,multiply(X1,X2))))))) = X4,
single_axiom ).
cnf(c_0_3,plain,
inverse(multiply(X1,multiply(multiply(multiply(X2,inverse(X2)),inverse(multiply(X3,multiply(X4,X1)))),multiply(multiply(X5,inverse(X5)),X3)))) = X4,
inference(spm,[status(thm)],[c_0_2,c_0_2]) ).
cnf(c_0_4,plain,
inverse(multiply(multiply(multiply(X1,inverse(X1)),inverse(multiply(X2,multiply(X3,X4)))),multiply(multiply(multiply(X5,inverse(X5)),X2),multiply(multiply(X6,inverse(X6)),X3)))) = X4,
inference(spm,[status(thm)],[c_0_2,c_0_3]) ).
cnf(c_0_5,plain,
inverse(multiply(multiply(multiply(X1,inverse(X1)),X2),multiply(multiply(multiply(X3,inverse(X3)),X4),multiply(multiply(X5,inverse(X5)),X6)))) = multiply(multiply(X7,inverse(X7)),inverse(multiply(X2,multiply(X4,X6)))),
inference(spm,[status(thm)],[c_0_3,c_0_3]) ).
cnf(c_0_6,plain,
multiply(multiply(X1,inverse(X1)),inverse(multiply(inverse(multiply(X2,multiply(X3,X4))),multiply(X2,X3)))) = X4,
inference(spm,[status(thm)],[c_0_4,c_0_5]) ).
cnf(c_0_7,plain,
multiply(multiply(X1,inverse(X1)),X2) = multiply(multiply(X3,inverse(X3)),X2),
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_6,c_0_4]),c_0_3]) ).
cnf(c_0_8,plain,
multiply(X1,inverse(X1)) = multiply(X2,inverse(X2)),
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_2,c_0_7]),c_0_2]) ).
cnf(c_0_9,plain,
inverse(multiply(X1,multiply(inverse(X1),multiply(multiply(X2,inverse(X2)),inverse(multiply(X3,multiply(X4,inverse(X4)))))))) = X3,
inference(spm,[status(thm)],[c_0_2,c_0_8]) ).
cnf(c_0_10,plain,
inverse(multiply(X1,multiply(inverse(X1),X2))) = inverse(multiply(X3,multiply(inverse(X3),X2))),
inference(spm,[status(thm)],[c_0_9,c_0_6]) ).
cnf(c_0_11,plain,
inverse(multiply(inverse(X1),multiply(X2,multiply(multiply(X3,inverse(X3)),inverse(multiply(X4,multiply(inverse(X4),X2))))))) = X1,
inference(spm,[status(thm)],[c_0_2,c_0_10]) ).
cnf(c_0_12,plain,
multiply(multiply(X1,inverse(X1)),inverse(multiply(inverse(multiply(X2,multiply(inverse(X2),X3))),multiply(X4,inverse(X4))))) = X3,
inference(spm,[status(thm)],[c_0_6,c_0_8]) ).
cnf(c_0_13,plain,
inverse(multiply(inverse(X1),multiply(inverse(inverse(inverse(multiply(X2,multiply(inverse(X2),X3))))),X3))) = X1,
inference(spm,[status(thm)],[c_0_11,c_0_12]) ).
cnf(c_0_14,plain,
inverse(multiply(inverse(inverse(inverse(multiply(X1,multiply(inverse(X1),X2))))),multiply(X2,multiply(multiply(X3,inverse(X3)),X4)))) = inverse(X4),
inference(spm,[status(thm)],[c_0_2,c_0_13]) ).
cnf(c_0_15,plain,
multiply(multiply(X1,inverse(X1)),inverse(multiply(inverse(multiply(X2,multiply(X3,inverse(X3)))),multiply(X2,X4)))) = inverse(X4),
inference(spm,[status(thm)],[c_0_6,c_0_8]) ).
cnf(c_0_16,plain,
inverse(inverse(multiply(X1,multiply(inverse(inverse(inverse(multiply(X2,multiply(inverse(X2),X3))))),X3)))) = X1,
inference(spm,[status(thm)],[c_0_2,c_0_14]) ).
cnf(c_0_17,plain,
multiply(multiply(X1,inverse(X1)),multiply(inverse(inverse(inverse(multiply(X2,multiply(inverse(X2),X3))))),multiply(X4,inverse(X4)))) = inverse(X3),
inference(spm,[status(thm)],[c_0_15,c_0_13]) ).
cnf(c_0_18,plain,
inverse(inverse(inverse(multiply(X1,inverse(X1))))) = multiply(X2,inverse(X2)),
inference(spm,[status(thm)],[c_0_16,c_0_17]) ).
cnf(c_0_19,plain,
multiply(X1,multiply(inverse(X1),X2)) = multiply(X3,multiply(inverse(X3),X2)),
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_11,c_0_10]),c_0_11]) ).
cnf(c_0_20,plain,
multiply(X1,inverse(X1)) = multiply(inverse(inverse(multiply(X2,inverse(X2)))),multiply(X3,inverse(X3))),
inference(spm,[status(thm)],[c_0_8,c_0_18]) ).
cnf(c_0_21,plain,
multiply(X1,inverse(X1)) = multiply(X2,multiply(inverse(X2),inverse(inverse(inverse(inverse(multiply(X3,inverse(X3)))))))),
inference(spm,[status(thm)],[c_0_19,c_0_20]) ).
cnf(c_0_22,plain,
multiply(inverse(X1),inverse(inverse(inverse(inverse(multiply(X2,inverse(X2))))))) = inverse(X1),
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_6,c_0_21]),c_0_15]) ).
cnf(c_0_23,plain,
multiply(inverse(X1),inverse(multiply(X2,inverse(X2)))) = inverse(X1),
inference(spm,[status(thm)],[c_0_22,c_0_18]) ).
cnf(c_0_24,plain,
multiply(X1,inverse(multiply(X2,inverse(X2)))) = X1,
inference(spm,[status(thm)],[c_0_23,c_0_4]) ).
cnf(c_0_25,plain,
inverse(multiply(inverse(X1),inverse(inverse(inverse(multiply(X2,inverse(X2))))))) = X1,
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_13,c_0_24]),c_0_23]) ).
cnf(c_0_26,plain,
multiply(multiply(X1,inverse(X1)),inverse(multiply(inverse(multiply(X2,multiply(X3,inverse(X3)))),multiply(X4,inverse(X4))))) = inverse(inverse(X2)),
inference(spm,[status(thm)],[c_0_15,c_0_8]) ).
cnf(c_0_27,plain,
inverse(multiply(inverse(X1),multiply(X2,inverse(X2)))) = X1,
inference(spm,[status(thm)],[c_0_25,c_0_18]) ).
cnf(c_0_28,plain,
multiply(X1,inverse(inverse(inverse(multiply(X2,inverse(X2)))))) = multiply(X3,multiply(inverse(X3),inverse(inverse(X1)))),
inference(spm,[status(thm)],[c_0_19,c_0_18]) ).
cnf(c_0_29,plain,
multiply(multiply(X1,inverse(X1)),multiply(X2,multiply(X3,inverse(X3)))) = inverse(inverse(X2)),
inference(rw,[status(thm)],[c_0_26,c_0_27]) ).
cnf(c_0_30,plain,
inverse(multiply(X1,multiply(inverse(X1),inverse(inverse(inverse(X2)))))) = X2,
inference(spm,[status(thm)],[c_0_25,c_0_28]) ).
cnf(c_0_31,plain,
inverse(inverse(inverse(inverse(inverse(multiply(X1,multiply(inverse(X1),X2))))))) = inverse(X2),
inference(rw,[status(thm)],[c_0_17,c_0_29]) ).
cnf(c_0_32,plain,
inverse(inverse(inverse(inverse(multiply(X1,multiply(inverse(X1),X2)))))) = X2,
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_30,c_0_31]),c_0_30]) ).
cnf(c_0_33,plain,
multiply(multiply(X1,inverse(X1)),multiply(X2,multiply(inverse(X2),X3))) = X3,
inference(rw,[status(thm)],[c_0_12,c_0_27]) ).
cnf(c_0_34,plain,
inverse(multiply(X1,multiply(inverse(X1),inverse(inverse(X2))))) = inverse(multiply(X2,multiply(X3,inverse(X3)))),
inference(spm,[status(thm)],[c_0_9,c_0_15]) ).
cnf(c_0_35,plain,
multiply(X1,multiply(X2,multiply(inverse(X2),X3))) = multiply(X4,multiply(inverse(X4),multiply(inverse(inverse(X1)),X3))),
inference(spm,[status(thm)],[c_0_19,c_0_19]) ).
cnf(c_0_36,plain,
multiply(inverse(inverse(multiply(X1,inverse(X1)))),X2) = inverse(inverse(inverse(inverse(X2)))),
inference(spm,[status(thm)],[c_0_32,c_0_33]) ).
cnf(c_0_37,plain,
multiply(X1,multiply(inverse(X1),inverse(inverse(X2)))) = multiply(X2,multiply(X3,inverse(X3))),
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_11,c_0_34]),c_0_11]) ).
cnf(c_0_38,plain,
multiply(X1,multiply(inverse(X1),inverse(inverse(inverse(inverse(X2)))))) = X2,
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_35,c_0_36]),c_0_33]) ).
cnf(c_0_39,plain,
multiply(inverse(inverse(X1)),multiply(X2,inverse(X2))) = X1,
inference(spm,[status(thm)],[c_0_37,c_0_38]) ).
cnf(c_0_40,plain,
inverse(inverse(X1)) = X1,
inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_39,c_0_18]),c_0_36]),c_0_22]) ).
cnf(c_0_41,negated_conjecture,
multiply(inverse(a1),a1) != multiply(inverse(b1),b1),
prove_these_axioms_1 ).
cnf(c_0_42,plain,
multiply(X1,inverse(X1)) = multiply(inverse(X2),X2),
inference(spm,[status(thm)],[c_0_8,c_0_40]) ).
cnf(c_0_43,negated_conjecture,
$false,
inference(sr,[status(thm)],[inference(spm,[status(thm)],[c_0_41,c_0_42]),c_0_42]),
[proof] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.39 % Problem : GRP442-1 : TPTP v9.2.1. Released v2.6.0.
% 0.06/0.39 % Command : /export/starexec/sandbox/solver/bin/lemma_parallel_prover %s --lemma-prover /export/starexec/sandbox/solver/bin/cse --final-prover /export/starexec/sandbox/solver/bin/eprover --proof-time %d --global-time-limit %d
% 0.13/0.70 % Computer : n014.cluster.edu
% 0.13/0.70 % Model : x86_64 x86_64
% 0.13/0.70 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.70 % Memory : 8042.1875MB
% 0.13/0.70 % OS : Linux 3.10.0-693.el7.x86_64
% 0.13/0.70 % CPULimit : 300
% 0.13/0.70 % WCLimit : 300
% 0.13/0.70 % DateTime : Mon May 4 18:34:52 EDT 2026
% 0.13/0.72 % CPUTime :
% 0.13/0.73 % start to proof: theBenchmark
% 3.75/3.60 % Version : CSE_E---1.7
% 3.75/3.60 % Problem : theBenchmark.p
% 3.75/3.60 % SZS status Unsatisfiable for theBenchmark.p
% 3.75/3.60 % SZS output start CNFRefutation
% See solution above
% 3.75/3.61 % Total time : 2.388s
%------------------------------------------------------------------------------