%------------------------------------------------------------------------------
% File : E---3.5.1
% Problem : SEU617^2 : TPTP v9.3.1. Released v3.7.0.
% Transfm : none
% Format : tptp:raw
% Command : run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% Computer : n026.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 : Wed Sep 30 08:24:44 AM UTC 2026
% Result : Theorem 0.10s 0.28s
% Output : CNFRefutation 0.10s
% Verified :
% SZS Type : Refutation
% Derivation depth : 6
% Number of leaves : 3
% Syntax : Number of formulae : 11 ( 3 unt; 0 typ; 0 def)
% Number of atoms : 30 ( 0 equ; 0 cnn)
% Maximal formula atoms : 5 ( 2 avg)
% Number of connectives : 144 ( 9 ~; 5 |; 2 &; 116 @)
% ( 2 <=>; 10 =>; 0 <=; 0 <~>)
% Maximal formula depth : 16 ( 10 avg)
% Number of types : 2 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 9 ( 8 usr; 6 con; 0-2 aty)
% Number of variables : 29 ( 0 ^; 29 !; 0 ?; 29 :)
% Comments :
%------------------------------------------------------------------------------
thf(decl_23,type,
in: $i > $i > $o ).
thf(decl_24,type,
emptyset: $i ).
thf(decl_25,type,
setadjoin: $i > $i > $i ).
thf(decl_26,type,
setunion: $i > $i ).
thf(decl_27,type,
setadjoinIL: $o ).
thf(decl_28,type,
setunionI: $o ).
thf(decl_29,type,
esk1_0: $i ).
thf(decl_30,type,
esk2_0: $i ).
thf(setukpairIL,conjecture,
( setadjoinIL
=> ( setunionI
=> ! [X1: $i,X2: $i] : ( in @ X1 @ ( setunion @ ( setadjoin @ ( setadjoin @ X1 @ emptyset ) @ ( setadjoin @ ( setadjoin @ X1 @ ( setadjoin @ X2 @ emptyset ) ) @ emptyset ) ) ) ) ) ),
file('/export/starexec/sandbox2/tmp/tmp.x1uzZvaMy9/E---3.1_644253.p',setukpairIL) ).
thf(setadjoinIL,axiom,
( setadjoinIL
<=> ! [X1: $i,X2: $i] : ( in @ X1 @ ( setadjoin @ X1 @ X2 ) ) ),
file('/export/starexec/sandbox2/tmp/tmp.x1uzZvaMy9/E---3.1_644253.p',setadjoinIL) ).
thf(setunionI,axiom,
( setunionI
<=> ! [X3: $i,X1: $i,X4: $i] :
( ( in @ X1 @ X4 )
=> ( ( in @ X4 @ X3 )
=> ( in @ X1 @ ( setunion @ X3 ) ) ) ) ),
file('/export/starexec/sandbox2/tmp/tmp.x1uzZvaMy9/E---3.1_644253.p',setunionI) ).
thf(c_0_3,negated_conjecture,
~ ( setadjoinIL
=> ( setunionI
=> ! [X1: $i,X2: $i] : ( in @ X1 @ ( setunion @ ( setadjoin @ ( setadjoin @ X1 @ emptyset ) @ ( setadjoin @ ( setadjoin @ X1 @ ( setadjoin @ X2 @ emptyset ) ) @ emptyset ) ) ) ) ) ),
inference(assume_negation,[status(cth)],[setukpairIL]) ).
thf(c_0_4,negated_conjecture,
~ ( ! [X12: $i,X13: $i] : ( in @ X12 @ ( setadjoin @ X12 @ X13 ) )
=> ( ! [X14: $i,X15: $i,X16: $i] :
( ( in @ X15 @ X16 )
=> ( ( in @ X16 @ X14 )
=> ( in @ X15 @ ( setunion @ X14 ) ) ) )
=> ! [X1: $i,X2: $i] : ( in @ X1 @ ( setunion @ ( setadjoin @ ( setadjoin @ X1 @ emptyset ) @ ( setadjoin @ ( setadjoin @ X1 @ ( setadjoin @ X2 @ emptyset ) ) @ emptyset ) ) ) ) ) ),
inference(apply_def,[status(thm)],[inference(apply_def,[status(thm)],[c_0_3,setadjoinIL]),setunionI]) ).
thf(c_0_5,negated_conjecture,
! [X17: $i,X18: $i,X19: $i,X20: $i,X21: $i] :
( ( in @ X17 @ ( setadjoin @ X17 @ X18 ) )
& ( ~ ( in @ X20 @ X21 )
| ~ ( in @ X21 @ X19 )
| ( in @ X20 @ ( setunion @ X19 ) ) )
& ~ ( in @ esk1_0 @ ( setunion @ ( setadjoin @ ( setadjoin @ esk1_0 @ emptyset ) @ ( setadjoin @ ( setadjoin @ esk1_0 @ ( setadjoin @ esk2_0 @ emptyset ) ) @ emptyset ) ) ) ) ),
inference(fof_nnf,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_4])])])])]) ).
thf(c_0_6,negated_conjecture,
! [X1: $i,X2: $i,X3: $i] :
( ( in @ X1 @ ( setunion @ X3 ) )
| ~ ( in @ X1 @ X2 )
| ~ ( in @ X2 @ X3 ) ),
inference(split_conjunct,[status(thm)],[c_0_5]) ).
thf(c_0_7,negated_conjecture,
! [X1: $i,X2: $i] : ( in @ X1 @ ( setadjoin @ X1 @ X2 ) ),
inference(split_conjunct,[status(thm)],[c_0_5]) ).
thf(c_0_8,negated_conjecture,
~ ( in @ esk1_0 @ ( setunion @ ( setadjoin @ ( setadjoin @ esk1_0 @ emptyset ) @ ( setadjoin @ ( setadjoin @ esk1_0 @ ( setadjoin @ esk2_0 @ emptyset ) ) @ emptyset ) ) ) ),
inference(split_conjunct,[status(thm)],[c_0_5]) ).
thf(c_0_9,negated_conjecture,
! [X1: $i,X3: $i,X2: $i] :
( ( in @ X1 @ ( setunion @ ( setadjoin @ X2 @ X3 ) ) )
| ~ ( in @ X1 @ X2 ) ),
inference(spm,[status(thm)],[c_0_6,c_0_7]) ).
thf(c_0_10,negated_conjecture,
$false,
inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_8,c_0_9]),c_0_7])]),
[proof] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SEU617^2 : TPTP v9.3.1. Released v3.7.0.
% 0.00/0.05 % Command : run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.10/0.18 % Computer : n026.cluster.edu
% 0.10/0.18 % Model : x86_64 x86_64
% 0.10/0.18 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.18 % Memory : 8046.5625MB
% 0.10/0.18 % OS : Linux 6.8.0-71-generic
% 0.10/0.18 % CPULimit : 300
% 0.10/0.18 % WCLimit : 300
% 0.10/0.18 % DateTime : Tue Sep 29 14:01:12 UTC 2026
% 0.10/0.18 % CPUTime :
% 0.10/0.18 Running run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.10/0.24 Running higher-order theorem proving
% 0.10/0.26 Running: /export/starexec/sandbox2/solver/bin/eprover-ho --delete-bad-limit=2000000000 --definitional-cnf=24 -s --print-statistics -R --print-version --proof-object --auto-schedule=8 --cpu-limit=300 /export/starexec/sandbox2/tmp/tmp.x1uzZvaMy9/E---3.1_644253.p
% 0.10/0.28 % Version: 3.5.1-ho
% 0.10/0.28 % Preprocessing class: HSSSSLSSSLSNFFN.
% 0.10/0.28 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.10/0.28 % Starting lpo6_lambda_fix with 1500s (5) cores
% 0.10/0.28 % Starting post_as_ho8 with 300s (1) cores
% 0.10/0.28 % Starting post_as_ho3 with 300s (1) cores
% 0.10/0.28 % Starting post_as_ho2 with 300s (1) cores
% 0.10/0.28 % post_as_ho8 with pid 644278 completed with status 0
% 0.10/0.28 % Result found by post_as_ho8
% 0.10/0.28 % Preprocessing class: HSSSSLSSSLSNFFN.
% 0.10/0.28 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.10/0.28 % Starting lpo6_lambda_fix with 1500s (5) cores
% 0.10/0.28 % Starting post_as_ho8 with 300s (1) cores
% 0.10/0.28 % (lift_lambdas = 1, lambda_to_forall = 1,unroll_only_formulas = 1, sine = GSinE(CountFormulas,,true,1.5,0,3,20000,1.0,true))
% 0.10/0.28 % SinE strategy is GSinE(CountFormulas,,true,1.5,0,3,20000,1.0,true)
% 0.10/0.28 % Search class: HHUNF-FFSF21-MFFFMFNN
% 0.10/0.28 % Scheduled 7 strats onto 1 cores with 300 seconds (300 total)
% 0.10/0.28 % Starting SubtermCWHack with 28s (1) cores
% 0.10/0.28 % SubtermCWHack with pid 644282 completed with status 0
% 0.10/0.28 % Result found by SubtermCWHack
% 0.10/0.28 % Preprocessing class: HSSSSLSSSLSNFFN.
% 0.10/0.28 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.10/0.28 % Starting lpo6_lambda_fix with 1500s (5) cores
% 0.10/0.28 % Starting post_as_ho8 with 300s (1) cores
% 0.10/0.28 % (lift_lambdas = 1, lambda_to_forall = 1,unroll_only_formulas = 1, sine = GSinE(CountFormulas,,true,1.5,0,3,20000,1.0,true))
% 0.10/0.28 % SinE strategy is GSinE(CountFormulas,,true,1.5,0,3,20000,1.0,true)
% 0.10/0.28 % Search class: HHUNF-FFSF21-MFFFMFNN
% 0.10/0.28 % Scheduled 7 strats onto 1 cores with 300 seconds (300 total)
% 0.10/0.28 % Starting SubtermCWHack with 28s (1) cores
% 0.10/0.28 % Preprocessing time : 0.001 s
% 0.10/0.28
% 0.10/0.28 % Proof found!
% 0.10/0.28 % SZS status Theorem
% 0.10/0.28 % SZS output start CNFRefutation
% See solution above
% 0.10/0.28 % Parsed axioms : 9
% 0.10/0.28 % Removed by relevancy pruning/SinE : 6
% 0.10/0.28 % Initial clauses : 3
% 0.10/0.28 % Removed in clause preprocessing : 0
% 0.10/0.28 % Initial clauses in saturation : 3
% 0.10/0.28 % Processed clauses : 7
% 0.10/0.28 % ...of these trivial : 0
% 0.10/0.28 % ...subsumed : 0
% 0.10/0.28 % ...remaining for further processing : 7
% 0.10/0.28 % Other redundant clauses eliminated : 0
% 0.10/0.28 % Clauses deleted for lack of memory : 0
% 0.10/0.28 % Backward-subsumed : 0
% 0.10/0.28 % Backward-rewritten : 0
% 0.10/0.28 % Generated clauses : 10
% 0.10/0.28 % ...of the previous two non-redundant : 9
% 0.10/0.28 % ...aggressively subsumed : 0
% 0.10/0.28 % Contextual simplify-reflections : 0
% 0.10/0.28 % Paramodulations : 10
% 0.10/0.28 % Factorizations : 0
% 0.10/0.28 % NegExts : 0
% 0.10/0.28 % Equation resolutions : 0
% 0.10/0.28 % Disequality decompositions : 0
% 0.10/0.28 % Total rewrite steps : 1
% 0.10/0.28 % ...of those cached : 0
% 0.10/0.28 % Propositional unsat checks : 0
% 0.10/0.28 % Propositional check models : 0
% 0.10/0.28 % Propositional check unsatisfiable : 0
% 0.10/0.28 % Propositional clauses : 0
% 0.10/0.28 % Propositional clauses after purity: 0
% 0.10/0.28 % Propositional unsat core size : 0
% 0.10/0.28 % Propositional preprocessing time : 0.000
% 0.10/0.28 % Propositional encoding time : 0.000
% 0.10/0.28 % Propositional solver time : 0.000
% 0.10/0.28 % Success case prop preproc time : 0.000
% 0.10/0.28 % Success case prop encoding time : 0.000
% 0.10/0.28 % Success case prop solver time : 0.000
% 0.10/0.28 % Current number of processed clauses : 7
% 0.10/0.28 % Positive orientable unit clauses : 2
% 0.10/0.28 % Positive unorientable unit clauses: 0
% 0.10/0.28 % Negative unit clauses : 1
% 0.10/0.28 % Non-unit-clauses : 4
% 0.10/0.28 % Current number of unprocessed clauses: 5
% 0.10/0.28 % ...number of literals in the above : 10
% 0.10/0.28 % Current number of archived formulas : 0
% 0.10/0.28 % Current number of archived clauses : 0
% 0.10/0.28 % Clause-clause subsumption calls (NU) : 5
% 0.10/0.28 % Rec. Clause-clause subsumption calls : 5
% 0.10/0.28 % Non-unit clause-clause subsumptions : 0
% 0.10/0.28 % Unit Clause-clause subsumption calls : 0
% 0.10/0.28 % Rewrite failures with RHS unbound : 0
% 0.10/0.28 % BW rewrite match attempts : 1
% 0.10/0.28 % BW rewrite match successes : 0
% 0.10/0.28 % Condensation attempts : 0
% 0.10/0.28 % Condensation successes : 0
% 0.10/0.28 % Termbank termtop insertions : 611
% 0.10/0.28 % Search garbage collected termcells : 148
% 0.10/0.28
% 0.10/0.28 % -------------------------------------------------
% 0.10/0.28 % User time : 0.002 s
% 0.10/0.28 % System time : 0.004 s
% 0.10/0.28 % Total time : 0.006 s
% 0.10/0.28 % Maximum resident set size: 3632 pages
% 0.10/0.28
% 0.10/0.28 % -------------------------------------------------
% 0.10/0.28 % User time : 0.004 s
% 0.10/0.28 % System time : 0.010 s
% 0.10/0.28 % Total time : 0.014 s
% 0.10/0.28 % Maximum resident set size: 4864 pages
% 0.10/0.28 % E exiting
%------------------------------------------------------------------------------