%------------------------------------------------------------------------------
% File : E---3.5.1
% Problem : SEU151+3 : TPTP v9.3.1. Released v3.2.0.
% Transfm : none
% Format : tptp:raw
% Command : run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% Computer : n017.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 02:24:00 PM UTC 2026
% Result : Theorem 0.11s 0.64s
% Output : CNFRefutation 0.11s
% Verified :
% SZS Type : Refutation
% Derivation depth : 10
% Number of leaves : 2
% Syntax : Number of formulae : 22 ( 11 unt; 0 def)
% Number of atoms : 62 ( 45 equ)
% Maximal formula atoms : 20 ( 2 avg)
% Number of connectives : 73 ( 33 ~; 25 |; 13 &)
% ( 2 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 17 ( 4 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 3 ( 1 usr; 1 prp; 0-2 aty)
% Number of functors : 6 ( 6 usr; 4 con; 0-3 aty)
% Number of variables : 44 ( 4 sgn 24 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(t10_zfmisc_1,conjecture,
! [X1,X2,X3,X4] :
~ ( X1 != X4
& X1 != X3
& unordered_pair(X1,X2) = unordered_pair(X3,X4) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t10_zfmisc_1) ).
fof(d2_tarski,axiom,
! [X1,X2,X3] :
( X3 = unordered_pair(X1,X2)
<=> ! [X4] :
( in(X4,X3)
<=> ( X4 = X2
| X4 = X1 ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d2_tarski) ).
fof(c_0_2,negated_conjecture,
~ ! [X1,X2,X3,X4] :
~ ( X1 != X4
& X1 != X3
& unordered_pair(X1,X2) = unordered_pair(X3,X4) ),
inference(assume_negation,[status(cth)],[t10_zfmisc_1]) ).
fof(c_0_3,plain,
! [X9,X10,X11,X12,X13,X14,X15,X16] :
( ( X16 = unordered_pair(X14,X15)
| esk1_3(X14,X15,X16) = X15
| esk1_3(X14,X15,X16) = X14
| in(esk1_3(X14,X15,X16),X16) )
& ( X16 = unordered_pair(X14,X15)
| ~ in(esk1_3(X14,X15,X16),X16)
| esk1_3(X14,X15,X16) != X15 )
& ( X16 = unordered_pair(X14,X15)
| ~ in(esk1_3(X14,X15,X16),X16)
| esk1_3(X14,X15,X16) != X14 )
& ( X11 != unordered_pair(X9,X10)
| in(X13,X11)
| X13 != X10 )
& ( X11 != unordered_pair(X9,X10)
| in(X13,X11)
| X13 != X9 )
& ( X11 != unordered_pair(X9,X10)
| X12 = X10
| X12 = X9
| ~ in(X12,X11) ) ),
inference(distribute,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(fof_nnf,[status(thm)],[d2_tarski])])])])])])]) ).
fof(c_0_4,negated_conjecture,
~ ! [X1,X2,X3,X4] :
~ ( X1 != X4
& X1 != X3
& unordered_pair(X1,X2) = unordered_pair(X3,X4) ),
inference(fof_simplification,[status(thm)],[c_0_2]) ).
cnf(c_0_5,plain,
( X3 != unordered_pair(X4,X2)
| X1 != X2
| in(X1,X3) ),
inference(split_conjunct,[status(thm)],[c_0_3]) ).
fof(c_0_6,negated_conjecture,
( esk4_0 != esk7_0
& esk4_0 != esk6_0
& unordered_pair(esk4_0,esk5_0) = unordered_pair(esk6_0,esk7_0) ),
inference(fof_nnf,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_4])])])]) ).
cnf(c_0_7,plain,
( X3 != unordered_pair(X2,X4)
| X1 != X2
| in(X1,X3) ),
inference(split_conjunct,[status(thm)],[c_0_3]) ).
cnf(c_0_8,plain,
( X2 != unordered_pair(X3,X4)
| ~ in(X1,X2)
| X1 = X4
| X1 = X3 ),
inference(split_conjunct,[status(thm)],[c_0_3]) ).
cnf(c_0_9,plain,
in(X1,unordered_pair(X2,X1)),
inference(er,[status(thm)],[inference(er,[status(thm)],[c_0_5])]) ).
cnf(c_0_10,negated_conjecture,
unordered_pair(esk4_0,esk5_0) = unordered_pair(esk6_0,esk7_0),
inference(split_conjunct,[status(thm)],[c_0_6]) ).
cnf(c_0_11,plain,
in(X1,unordered_pair(X1,X2)),
inference(er,[status(thm)],[inference(er,[status(thm)],[c_0_7])]) ).
cnf(c_0_12,plain,
( ~ in(X1,unordered_pair(X3,X2))
| X1 = X3
| X1 = X2 ),
inference(er,[status(thm)],[c_0_8]) ).
cnf(c_0_13,negated_conjecture,
in(esk7_0,unordered_pair(esk4_0,esk5_0)),
inference(spm,[status(thm)],[c_0_9,c_0_10]) ).
cnf(c_0_14,negated_conjecture,
esk4_0 != esk7_0,
inference(split_conjunct,[status(thm)],[c_0_6]) ).
cnf(c_0_15,negated_conjecture,
in(esk6_0,unordered_pair(esk4_0,esk5_0)),
inference(spm,[status(thm)],[c_0_11,c_0_10]) ).
cnf(c_0_16,negated_conjecture,
esk4_0 != esk6_0,
inference(split_conjunct,[status(thm)],[c_0_6]) ).
cnf(c_0_17,negated_conjecture,
esk5_0 = esk7_0,
inference(sr,[status(thm)],[inference(spm,[status(thm)],[c_0_12,c_0_13]),c_0_14]) ).
cnf(c_0_18,negated_conjecture,
esk7_0 = esk6_0,
inference(rw,[status(thm)],[inference(sr,[status(thm)],[inference(spm,[status(thm)],[c_0_12,c_0_15]),c_0_16]),c_0_17]) ).
cnf(c_0_19,negated_conjecture,
unordered_pair(esk6_0,esk6_0) = unordered_pair(esk4_0,esk6_0),
inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_10,c_0_17]),c_0_18]),c_0_18]) ).
cnf(c_0_20,negated_conjecture,
( ~ in(X1,unordered_pair(esk4_0,esk6_0))
| X1 = esk6_0 ),
inference(spm,[status(thm)],[c_0_12,c_0_19]) ).
cnf(c_0_21,negated_conjecture,
$false,
inference(sr,[status(thm)],[inference(spm,[status(thm)],[c_0_20,c_0_11]),c_0_16]),
[proof] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SEU151+3 : TPTP v9.3.1. Released v3.2.0.
% 0.00/0.05 % Command : run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.11/0.57 % Computer : n017.cluster.edu
% 0.11/0.57 % Model : x86_64 x86_64
% 0.11/0.57 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.57 % Memory : 8046.5625MB
% 0.11/0.57 % OS : Linux 6.8.0-71-generic
% 0.11/0.57 % CPULimit : 300
% 0.11/0.57 % WCLimit : 300
% 0.11/0.57 % DateTime : Mon Sep 21 05:48:27 UTC 2026
% 0.11/0.58 % CPUTime :
% 0.11/0.58 Running run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.11/0.62 Running first-order theorem proving
% 0.11/0.62 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
% 0.11/0.64 % Version: 3.5.1
% 0.11/0.64 % Preprocessing class: FSSSSMSSSSSNFFN.
% 0.11/0.64 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.11/0.64 % Starting G-E--_302_C18_F1_URBAN_RG_S04BN with 1500s (5) cores
% 0.11/0.64 % Starting new_bool_3 with 300s (1) cores
% 0.11/0.64 % Starting new_bool_1 with 300s (1) cores
% 0.11/0.64 % Starting sh5l with 300s (1) cores
% 0.11/0.64 % G-E--_302_C18_F1_URBAN_RG_S04BN with pid 1570381 completed with status 0
% 0.11/0.64 % Result found by G-E--_302_C18_F1_URBAN_RG_S04BN
% 0.11/0.64 % Preprocessing class: FSSSSMSSSSSNFFN.
% 0.11/0.64 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.11/0.64 % Starting G-E--_302_C18_F1_URBAN_RG_S04BN with 1500s (5) cores
% 0.11/0.64 % (lift_lambdas = 1, lambda_to_forall = 1,unroll_only_formulas = 1, sine = Auto)
% 0.11/0.64 % No SInE strategy applied
% 0.11/0.64 % Search class: FGHSF-FFSF32-SFFFFFNN
% 0.11/0.64 % Scheduled 7 strats onto 5 cores with 1500 seconds (1500 total)
% 0.11/0.64 % Starting SubtermCWHack with 136s (1) cores
% 0.11/0.64 % Starting G-E--_302_C18_F1_URBAN_RG_S04BN with 151s (1) cores
% 0.11/0.64 % Starting G-E--_208_C18_F1_SE_CS_SP_PS_S4d with 136s (1) cores
% 0.11/0.64 % Starting new_bool_3 with 136s (1) cores
% 0.11/0.64 % Starting new_bool_1 with 136s (1) cores
% 0.11/0.64 % new_bool_1 with pid 1570389 completed with status 0
% 0.11/0.64 % Result found by new_bool_1
% 0.11/0.64 % Preprocessing class: FSSSSMSSSSSNFFN.
% 0.11/0.64 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.11/0.64 % Starting G-E--_302_C18_F1_URBAN_RG_S04BN with 1500s (5) cores
% 0.11/0.64 % (lift_lambdas = 1, lambda_to_forall = 1,unroll_only_formulas = 1, sine = Auto)
% 0.11/0.64 % No SInE strategy applied
% 0.11/0.64 % Search class: FGHSF-FFSF32-SFFFFFNN
% 0.11/0.64 % Scheduled 7 strats onto 5 cores with 1500 seconds (1500 total)
% 0.11/0.64 % Starting SubtermCWHack with 136s (1) cores
% 0.11/0.64 % Starting G-E--_302_C18_F1_URBAN_RG_S04BN with 151s (1) cores
% 0.11/0.64 % Starting G-E--_208_C18_F1_SE_CS_SP_PS_S4d with 136s (1) cores
% 0.11/0.64 % Starting new_bool_3 with 136s (1) cores
% 0.11/0.64 % Starting new_bool_1 with 136s (1) cores
% 0.11/0.64 % Preprocessing time : 0.001 s
% 0.11/0.64 % Presaturation interreduction done
% 0.11/0.64
% 0.11/0.64 % Proof found!
% 0.11/0.64 % SZS status Theorem
% 0.11/0.64 % SZS output start CNFRefutation
% See solution above
% 0.11/0.64 % Parsed axioms : 6
% 0.11/0.64 % Removed by relevancy pruning/SinE : 0
% 0.11/0.64 % Initial clauses : 13
% 0.11/0.64 % Removed in clause preprocessing : 0
% 0.11/0.64 % Initial clauses in saturation : 13
% 0.11/0.64 % Processed clauses : 49
% 0.11/0.64 % ...of these trivial : 1
% 0.11/0.64 % ...subsumed : 11
% 0.11/0.64 % ...remaining for further processing : 37
% 0.11/0.64 % Other redundant clauses eliminated : 5
% 0.11/0.64 % Clauses deleted for lack of memory : 0
% 0.11/0.64 % Backward-subsumed : 0
% 0.11/0.64 % Backward-rewritten : 5
% 0.11/0.64 % Generated clauses : 38
% 0.11/0.64 % ...of the previous two non-redundant : 33
% 0.11/0.64 % ...aggressively subsumed : 0
% 0.11/0.64 % Contextual simplify-reflections : 0
% 0.11/0.64 % Paramodulations : 35
% 0.11/0.64 % Factorizations : 0
% 0.11/0.64 % NegExts : 0
% 0.11/0.64 % Equation resolutions : 5
% 0.11/0.64 % Disequality decompositions : 0
% 0.11/0.64 % Total rewrite steps : 22
% 0.11/0.64 % ...of those cached : 15
% 0.11/0.64 % Propositional unsat checks : 0
% 0.11/0.64 % Propositional check models : 0
% 0.11/0.64 % Propositional check unsatisfiable : 0
% 0.11/0.64 % Propositional clauses : 0
% 0.11/0.64 % Propositional clauses after purity: 0
% 0.11/0.64 % Propositional unsat core size : 0
% 0.11/0.64 % Propositional preprocessing time : 0.000
% 0.11/0.64 % Propositional encoding time : 0.000
% 0.11/0.64 % Propositional solver time : 0.000
% 0.11/0.64 % Success case prop preproc time : 0.000
% 0.11/0.64 % Success case prop encoding time : 0.000
% 0.11/0.64 % Success case prop solver time : 0.000
% 0.11/0.64 % Current number of processed clauses : 16
% 0.11/0.64 % Positive orientable unit clauses : 7
% 0.11/0.64 % Positive unorientable unit clauses: 1
% 0.11/0.64 % Negative unit clauses : 5
% 0.11/0.64 % Non-unit-clauses : 3
% 0.11/0.64 % Current number of unprocessed clauses: 7
% 0.11/0.64 % ...number of literals in the above : 20
% 0.11/0.64 % Current number of archived formulas : 0
% 0.11/0.64 % Current number of archived clauses : 18
% 0.11/0.64 % Clause-clause subsumption calls (NU) : 2
% 0.11/0.64 % Rec. Clause-clause subsumption calls : 2
% 0.11/0.64 % Non-unit clause-clause subsumptions : 0
% 0.11/0.64 % Unit Clause-clause subsumption calls : 8
% 0.11/0.64 % Rewrite failures with RHS unbound : 0
% 0.11/0.64 % BW rewrite match attempts : 13
% 0.11/0.64 % BW rewrite match successes : 10
% 0.11/0.64 % Condensation attempts : 0
% 0.11/0.64 % Condensation successes : 0
% 0.11/0.64 % Termbank termtop insertions : 965
% 0.11/0.64 % Search garbage collected termcells : 218
% 0.11/0.64
% 0.11/0.64 % -------------------------------------------------
% 0.11/0.64 % User time : 0.002 s
% 0.11/0.64 % System time : 0.003 s
% 0.11/0.64 % Total time : 0.005 s
% 0.11/0.64 % Maximum resident set size: 3632 pages
% 0.11/0.64
% 0.11/0.64 % -------------------------------------------------
% 0.11/0.64 % User time : 0.010 s
% 0.11/0.64 % System time : 0.015 s
% 0.11/0.64 % Total time : 0.026 s
% 0.11/0.64 % Maximum resident set size: 4608 pages
% 0.11/0.64 % E exiting
%------------------------------------------------------------------------------