%------------------------------------------------------------------------------
% File : E-SAT---3.5.1
% Problem : GRP064-1 : TPTP v9.3.1. Bugfixed v2.3.0.
% Transfm : none
% Format : tptp:raw
% Command : run_E /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% Computer : n007.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 12:41:41 PM UTC 2026
% Result : Unsatisfiable 0.04s 0.46s
% Output : CNFRefutation 0.04s
% Verified :
% SZS Type : Refutation
% Derivation depth : 22
% Number of leaves : 4
% Syntax : Number of clauses : 46 ( 41 unt; 0 nHn; 7 RR)
% Number of literals : 55 ( 54 equ; 15 neg)
% Maximal clause size : 3 ( 1 avg)
% Maximal term depth : 7 ( 2 avg)
% Number of predicates : 2 ( 0 usr; 1 prp; 0-2 aty)
% Number of functors : 10 ( 10 usr; 7 con; 0-2 aty)
% Number of variables : 89 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(multiply,axiom,
multiply(X1,X2) = divide(X1,divide(divide(X3,X3),X2)),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',multiply) ).
cnf(inverse,axiom,
inverse(X1) = divide(divide(X2,X2),X1),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',inverse) ).
cnf(single_axiom,axiom,
divide(X1,divide(divide(divide(divide(X2,X2),X2),X3),divide(divide(divide(X2,X2),X1),X3))) = X2,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',single_axiom) ).
cnf(prove_these_axioms,negated_conjecture,
( multiply(multiply(a3,b3),c3) != multiply(a3,multiply(b3,c3))
| multiply(multiply(inverse(b2),b2),a2) != a2
| multiply(inverse(a1),a1) != multiply(inverse(b1),b1) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_these_axioms) ).
cnf(c_0_4,axiom,
multiply(X1,X2) = divide(X1,divide(divide(X3,X3),X2)),
multiply ).
cnf(c_0_5,axiom,
inverse(X1) = divide(divide(X2,X2),X1),
inverse ).
cnf(c_0_6,plain,
divide(X1,inverse(X2)) = multiply(X1,X2),
inference(rw,[status(thm)],[c_0_4,c_0_5]) ).
cnf(c_0_7,plain,
divide(inverse(divide(X1,X1)),X2) = inverse(X2),
inference(spm,[status(thm)],[c_0_5,c_0_5]) ).
cnf(c_0_8,axiom,
divide(X1,divide(divide(divide(divide(X2,X2),X2),X3),divide(divide(divide(X2,X2),X1),X3))) = X2,
single_axiom ).
cnf(c_0_9,plain,
multiply(inverse(divide(X1,X1)),X2) = inverse(inverse(X2)),
inference(spm,[status(thm)],[c_0_6,c_0_7]) ).
cnf(c_0_10,plain,
divide(multiply(inverse(X1),X1),X2) = inverse(X2),
inference(spm,[status(thm)],[c_0_5,c_0_6]) ).
cnf(c_0_11,plain,
divide(X1,divide(divide(inverse(X2),X3),divide(inverse(X1),X3))) = X2,
inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_8,c_0_5]),c_0_5]) ).
cnf(c_0_12,plain,
multiply(inverse(multiply(inverse(X1),X1)),X2) = inverse(inverse(X2)),
inference(spm,[status(thm)],[c_0_9,c_0_6]) ).
cnf(c_0_13,plain,
multiply(inverse(inverse(multiply(inverse(X1),X1))),X2) = inverse(inverse(X2)),
inference(spm,[status(thm)],[c_0_9,c_0_10]) ).
cnf(c_0_14,plain,
multiply(X1,multiply(inverse(X1),X2)) = X2,
inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_11,c_0_5]),c_0_6]),c_0_6]) ).
cnf(c_0_15,plain,
multiply(inverse(inverse(inverse(multiply(inverse(X1),X1)))),X2) = inverse(inverse(X2)),
inference(spm,[status(thm)],[c_0_12,c_0_12]) ).
cnf(c_0_16,plain,
inverse(inverse(inverse(inverse(X1)))) = X1,
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_13,c_0_14]),c_0_15]) ).
cnf(c_0_17,plain,
multiply(inverse(inverse(X1)),X2) = multiply(X1,X2),
inference(spm,[status(thm)],[c_0_14,c_0_14]) ).
cnf(c_0_18,plain,
multiply(X1,inverse(inverse(inverse(X2)))) = divide(X1,X2),
inference(spm,[status(thm)],[c_0_6,c_0_16]) ).
cnf(c_0_19,plain,
inverse(multiply(divide(inverse(X1),X2),X2)) = X1,
inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_5,c_0_11]),c_0_7]),c_0_6]) ).
cnf(c_0_20,plain,
divide(inverse(inverse(X1)),X2) = divide(X1,X2),
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_17,c_0_18]),c_0_18]) ).
cnf(c_0_21,plain,
inverse(multiply(divide(X1,X2),X2)) = inverse(X1),
inference(spm,[status(thm)],[c_0_19,c_0_20]) ).
cnf(c_0_22,plain,
inverse(inverse(X1)) = X1,
inference(rw,[status(thm)],[c_0_19,c_0_21]) ).
cnf(c_0_23,plain,
multiply(divide(X1,X2),X2) = X1,
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_11,c_0_21]),c_0_11]) ).
cnf(c_0_24,plain,
multiply(X1,inverse(X2)) = divide(X1,X2),
inference(rw,[status(thm)],[c_0_18,c_0_22]) ).
cnf(c_0_25,plain,
divide(multiply(X1,X2),X2) = X1,
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_23,c_0_6]),c_0_24]) ).
cnf(c_0_26,plain,
multiply(inverse(X1),multiply(X1,X2)) = X2,
inference(spm,[status(thm)],[c_0_14,c_0_17]) ).
cnf(c_0_27,plain,
divide(X1,multiply(X2,X1)) = inverse(X2),
inference(spm,[status(thm)],[c_0_25,c_0_26]) ).
cnf(c_0_28,plain,
inverse(divide(X1,X2)) = divide(X2,X1),
inference(spm,[status(thm)],[c_0_27,c_0_23]) ).
cnf(c_0_29,plain,
inverse(multiply(X1,X2)) = divide(inverse(X2),X1),
inference(spm,[status(thm)],[c_0_28,c_0_6]) ).
cnf(c_0_30,plain,
divide(X1,divide(divide(X2,X3),divide(inverse(X1),X3))) = inverse(X2),
inference(spm,[status(thm)],[c_0_11,c_0_22]) ).
cnf(c_0_31,plain,
divide(X1,divide(inverse(X2),X3)) = multiply(X1,multiply(X3,X2)),
inference(spm,[status(thm)],[c_0_6,c_0_29]) ).
cnf(c_0_32,negated_conjecture,
( multiply(multiply(a3,b3),c3) != multiply(a3,multiply(b3,c3))
| multiply(multiply(inverse(b2),b2),a2) != a2
| multiply(inverse(a1),a1) != multiply(inverse(b1),b1) ),
inference(fof_simplification,[status(thm)],[prove_these_axioms]) ).
cnf(c_0_33,plain,
divide(X1,multiply(divide(X2,X3),multiply(X3,X1))) = inverse(X2),
inference(rw,[status(thm)],[c_0_30,c_0_31]) ).
cnf(c_0_34,negated_conjecture,
( multiply(multiply(a3,b3),c3) != multiply(a3,multiply(b3,c3))
| multiply(multiply(inverse(b2),b2),a2) != a2
| multiply(inverse(a1),a1) != multiply(inverse(b1),b1) ),
c_0_32 ).
cnf(c_0_35,plain,
multiply(multiply(inverse(X1),X1),X2) = inverse(inverse(X2)),
inference(spm,[status(thm)],[c_0_6,c_0_10]) ).
cnf(c_0_36,plain,
divide(X1,multiply(X2,multiply(X3,X1))) = divide(inverse(X3),X2),
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_33,c_0_25]),c_0_29]) ).
cnf(c_0_37,negated_conjecture,
( inverse(inverse(a2)) != a2
| multiply(inverse(a1),a1) != multiply(inverse(b1),b1)
| multiply(multiply(a3,b3),c3) != multiply(a3,multiply(b3,c3)) ),
inference(rw,[status(thm)],[c_0_34,c_0_35]) ).
cnf(c_0_38,plain,
multiply(X1,multiply(inverse(X2),X3)) = divide(X1,multiply(inverse(X3),X2)),
inference(spm,[status(thm)],[c_0_31,c_0_6]) ).
cnf(c_0_39,plain,
divide(X1,multiply(X2,X3)) = divide(divide(X1,X3),X2),
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_36,c_0_23]),c_0_28]) ).
cnf(c_0_40,negated_conjecture,
( multiply(inverse(a1),a1) != multiply(inverse(b1),b1)
| multiply(multiply(a3,b3),c3) != multiply(a3,multiply(b3,c3)) ),
inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_37,c_0_22])]) ).
cnf(c_0_41,plain,
multiply(inverse(X1),X1) = multiply(inverse(X2),X2),
inference(spm,[status(thm)],[c_0_23,c_0_10]) ).
cnf(c_0_42,plain,
multiply(X1,multiply(inverse(X2),X3)) = multiply(divide(X1,X2),X3),
inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_38,c_0_39]),c_0_6]) ).
cnf(c_0_43,negated_conjecture,
multiply(multiply(a3,b3),c3) != multiply(a3,multiply(b3,c3)),
inference(sr,[status(thm)],[c_0_40,c_0_41]) ).
cnf(c_0_44,plain,
multiply(multiply(X1,X2),X3) = multiply(X1,multiply(X2,X3)),
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_42,c_0_22]),c_0_6]) ).
cnf(c_0_45,negated_conjecture,
$false,
inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_43,c_0_44])]),
[proof] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : GRP064-1 : TPTP v9.3.1. Bugfixed v2.3.0.
% 0.00/0.05 % Command : run_E /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.11/0.37 % Computer : n007.cluster.edu
% 0.11/0.37 % Model : x86_64 x86_64
% 0.11/0.37 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.37 % Memory : 8046.5625MB
% 0.11/0.37 % OS : Linux 6.8.0-71-generic
% 0.04/0.37 % CPULimit : 300
% 0.04/0.37 % WCLimit : 300
% 0.04/0.37 % DateTime : Sun Sep 20 19:54:35 UTC 2026
% 0.04/0.38 % CPUTime :
% 0.04/0.38 Running run_E /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.04/0.42 Running first-order theorem proving
% 0.04/0.42 Running: /export/starexec/sandbox/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/sandbox/benchmark/theBenchmark.p
% 0.04/0.46 % Version: 3.5.1
% 0.04/0.46 % Preprocessing class: FSSSSMSSSSSNFFN.
% 0.04/0.46 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.04/0.46 % Starting G-E--_302_C18_F1_URBAN_RG_S04BN with 1500s (5) cores
% 0.04/0.46 % Starting new_bool_3 with 300s (1) cores
% 0.04/0.46 % Starting new_bool_1 with 300s (1) cores
% 0.04/0.46 % Starting sh5l with 300s (1) cores
% 0.04/0.46 % G-E--_302_C18_F1_URBAN_RG_S04BN with pid 3443211 completed with status 0
% 0.04/0.46 % Result found by G-E--_302_C18_F1_URBAN_RG_S04BN
% 0.04/0.46 % Preprocessing class: FSSSSMSSSSSNFFN.
% 0.04/0.46 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.04/0.46 % Starting G-E--_302_C18_F1_URBAN_RG_S04BN with 1500s (5) cores
% 0.04/0.46 % (lift_lambdas = 1, lambda_to_forall = 1,unroll_only_formulas = 1, sine = Auto)
% 0.04/0.46 % No SInE strategy applied
% 0.04/0.46 % Search class: FUHPS-FFSF21-MFFFFFNN
% 0.04/0.46 % Scheduled 7 strats onto 5 cores with 1500 seconds (1500 total)
% 0.04/0.46 % Starting SubtermCWHack with 136s (1) cores
% 0.04/0.46 % Starting G-E--_302_C18_F1_URBAN_RG_S04BN with 151s (1) cores
% 0.04/0.46 % Starting G-E--_208_C18_F1_SE_CS_SP_PS_S5PRR_S0Y with 136s (1) cores
% 0.04/0.46 % Starting new_bool_3 with 136s (1) cores
% 0.04/0.46 % Starting new_bool_1 with 136s (1) cores
% 0.04/0.46 % new_bool_3 with pid 3443220 completed with status 0
% 0.04/0.46 % Result found by new_bool_3
% 0.04/0.46 % Preprocessing class: FSSSSMSSSSSNFFN.
% 0.04/0.46 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.04/0.46 % Starting G-E--_302_C18_F1_URBAN_RG_S04BN with 1500s (5) cores
% 0.04/0.46 % (lift_lambdas = 1, lambda_to_forall = 1,unroll_only_formulas = 1, sine = Auto)
% 0.04/0.46 % No SInE strategy applied
% 0.04/0.46 % Search class: FUHPS-FFSF21-MFFFFFNN
% 0.04/0.46 % Scheduled 7 strats onto 5 cores with 1500 seconds (1500 total)
% 0.04/0.46 % Starting SubtermCWHack with 136s (1) cores
% 0.04/0.46 % Starting G-E--_302_C18_F1_URBAN_RG_S04BN with 151s (1) cores
% 0.04/0.46 % Starting G-E--_208_C18_F1_SE_CS_SP_PS_S5PRR_S0Y with 136s (1) cores
% 0.04/0.46 % Starting new_bool_3 with 136s (1) cores
% 0.04/0.46 % Preprocessing time : 0.001 s
% 0.04/0.46 % Presaturation interreduction done
% 0.04/0.46
% 0.04/0.46 % Proof found!
% 0.04/0.46 % SZS status Unsatisfiable
% 0.04/0.46 % SZS output start CNFRefutation
% See solution above
% 0.04/0.46 % Parsed axioms : 4
% 0.04/0.46 % Removed by relevancy pruning/SinE : 0
% 0.04/0.46 % Initial clauses : 4
% 0.04/0.46 % Removed in clause preprocessing : 0
% 0.04/0.46 % Initial clauses in saturation : 4
% 0.04/0.46 % Processed clauses : 212
% 0.04/0.46 % ...of these trivial : 53
% 0.04/0.46 % ...subsumed : 87
% 0.04/0.46 % ...remaining for further processing : 72
% 0.04/0.46 % Other redundant clauses eliminated : 0
% 0.04/0.46 % Clauses deleted for lack of memory : 0
% 0.04/0.46 % Backward-subsumed : 1
% 0.04/0.46 % Backward-rewritten : 44
% 0.04/0.46 % Generated clauses : 1372
% 0.04/0.46 % ...of the previous two non-redundant : 793
% 0.04/0.46 % ...aggressively subsumed : 0
% 0.04/0.46 % Contextual simplify-reflections : 0
% 0.04/0.46 % Paramodulations : 1371
% 0.04/0.46 % Factorizations : 0
% 0.04/0.46 % NegExts : 0
% 0.04/0.46 % Equation resolutions : 0
% 0.04/0.46 % Disequality decompositions : 0
% 0.04/0.46 % Total rewrite steps : 2121
% 0.04/0.46 % ...of those cached : 1476
% 0.04/0.46 % Propositional unsat checks : 0
% 0.04/0.46 % Propositional check models : 0
% 0.04/0.46 % Propositional check unsatisfiable : 0
% 0.04/0.46 % Propositional clauses : 0
% 0.04/0.46 % Propositional clauses after purity: 0
% 0.04/0.46 % Propositional unsat core size : 0
% 0.04/0.46 % Propositional preprocessing time : 0.000
% 0.04/0.46 % Propositional encoding time : 0.000
% 0.04/0.46 % Propositional solver time : 0.000
% 0.04/0.46 % Success case prop preproc time : 0.000
% 0.04/0.46 % Success case prop encoding time : 0.000
% 0.04/0.46 % Success case prop solver time : 0.000
% 0.04/0.46 % Current number of processed clauses : 22
% 0.04/0.46 % Positive orientable unit clauses : 19
% 0.04/0.46 % Positive unorientable unit clauses: 3
% 0.04/0.46 % Negative unit clauses : 0
% 0.04/0.46 % Non-unit-clauses : 0
% 0.04/0.46 % Current number of unprocessed clauses: 425
% 0.04/0.46 % ...number of literals in the above : 425
% 0.04/0.46 % Current number of archived formulas : 0
% 0.04/0.46 % Current number of archived clauses : 50
% 0.04/0.46 % Clause-clause subsumption calls (NU) : 1
% 0.04/0.46 % Rec. Clause-clause subsumption calls : 1
% 0.04/0.46 % Non-unit clause-clause subsumptions : 1
% 0.04/0.46 % Unit Clause-clause subsumption calls : 12
% 0.04/0.46 % Rewrite failures with RHS unbound : 89
% 0.04/0.46 % BW rewrite match attempts : 108
% 0.04/0.46 % BW rewrite match successes : 58
% 0.04/0.46 % Condensation attempts : 0
% 0.04/0.46 % Condensation successes : 0
% 0.04/0.46 % Termbank termtop insertions : 11313
% 0.04/0.46 % Search garbage collected termcells : 8
% 0.04/0.46
% 0.04/0.46 % -------------------------------------------------
% 0.04/0.46 % User time : 0.019 s
% 0.04/0.46 % System time : 0.003 s
% 0.04/0.46 % Total time : 0.021 s
% 0.04/0.46 % Maximum resident set size: 3636 pages
% 0.04/0.46
% 0.04/0.46 % -------------------------------------------------
% 0.04/0.46 % User time : 0.085 s
% 0.04/0.46 % System time : 0.019 s
% 0.04/0.46 % Total time : 0.104 s
% 0.04/0.46 % Maximum resident set size: 4864 pages
% 0.04/0.46 % E exiting
%------------------------------------------------------------------------------