%------------------------------------------------------------------------------
% File : E---3.5.1
% Problem : PUZ083^1 : TPTP v9.3.1. Released v3.6.0.
% Transfm : none
% Format : tptp:raw
% Command : run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% Computer : n002.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 08:20:32 AM UTC 2026
% Result : Theorem 0.11s 0.26s
% Output : CNFRefutation 0.11s
% Verified :
% SZS Type : Refutation
% Derivation depth : 6
% Number of leaves : 2
% Syntax : Number of formulae : 13 ( 4 unt; 0 typ; 0 def)
% Number of atoms : 47 ( 0 equ; 0 cnn)
% Maximal formula atoms : 16 ( 3 avg)
% Number of connectives : 89 ( 17 ~; 15 |; 4 &; 48 @)
% ( 0 <=>; 5 =>; 0 <=; 0 <~>)
% Maximal formula depth : 9 ( 5 avg)
% Number of types : 2 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 5 ( 3 usr; 4 con; 0-2 aty)
% Number of variables : 7 ( 0 ^; 7 !; 0 ?; 7 :)
% Comments :
%------------------------------------------------------------------------------
thf(decl_23,type,
peter: $i ).
thf(decl_24,type,
says: $i > $o > $o ).
thf(decl_25,type,
epred1_0: $o ).
thf(ax1,axiom,
( says @ peter
@ ! [X1: $o] :
( ( says @ peter @ X1 )
=> ~ X1 ) ),
file('/export/starexec/sandbox2/tmp/tmp.HSYyV0MwhM/E---3.1_1265045.p',ax1) ).
thf(thm,conjecture,
~ ! [X1: $o] :
( ( says @ peter @ X1 )
=> X1 ),
file('/export/starexec/sandbox2/tmp/tmp.HSYyV0MwhM/E---3.1_1265045.p',thm) ).
thf(c_0_2,plain,
( ( ~ ! [X1: $o] :
( ( says @ peter @ X1 )
=> ~ X1 )
| ( says @ peter @ $true ) )
& ( ! [X1: $o] :
( ( says @ peter @ X1 )
=> ~ X1 )
| ( says @ peter @ $false ) ) ),
inference(fof_simplification,[status(thm)],[inference(fool_unroll,[status(thm)],[ax1])]) ).
thf(c_0_3,plain,
! [X4: $o] :
( ( ~ epred1_0
| ( says @ peter @ $true )
| ( says @ peter @ $true ) )
& ( epred1_0
| ( says @ peter @ $false )
| ( says @ peter @ $true ) )
& ( epred1_0
| ( says @ peter @ $true ) )
& ( ~ ( says @ peter @ X4 )
| ~ X4
| ( says @ peter @ $false ) ) ),
inference(distribute,[status(thm)],[inference(fof_nnf,[status(thm)],[inference(fool_unroll,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_2])])])])])])]) ).
thf(c_0_4,plain,
( ( says @ peter @ $true )
| ( says @ peter @ $true )
| ~ epred1_0 ),
inference(split_conjunct,[status(thm)],[c_0_3]) ).
thf(c_0_5,negated_conjecture,
~ ~ ! [X1: $o] :
( ( says @ peter @ X1 )
=> X1 ),
inference(assume_negation,[status(cth)],[thm]) ).
thf(c_0_6,plain,
( ( says @ peter @ $true )
| ~ epred1_0 ),
inference(cn,[status(thm)],[c_0_4]) ).
thf(c_0_7,plain,
( epred1_0
| ( says @ peter @ $true ) ),
inference(split_conjunct,[status(thm)],[c_0_3]) ).
thf(c_0_8,negated_conjecture,
! [X5: $o] :
( ~ ( says @ peter @ X5 )
| X5 ),
inference(fof_nnf,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_5])])]) ).
thf(c_0_9,plain,
( ( says @ peter @ ~ $true )
| ~ ( says @ peter @ $true ) ),
inference(cn,[status(thm)],[inference(cn,[status(thm)],[inference(split_conjunct,[status(thm)],[c_0_3])])]) ).
thf(c_0_10,plain,
says @ peter @ $true,
inference(csr,[status(thm)],[c_0_6,c_0_7]) ).
thf(c_0_11,negated_conjecture,
~ ( says @ peter @ ~ $true ),
inference(cn,[status(thm)],[inference(cn,[status(thm)],[inference(split_conjunct,[status(thm)],[c_0_8])])]) ).
thf(c_0_12,plain,
$false,
inference(sr,[status(thm)],[inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_9,c_0_10])]),c_0_11]),
[proof] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : PUZ083^1 : TPTP v9.3.1. Released v3.6.0.
% 0.00/0.04 % Command : run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.11/0.18 % Computer : n002.cluster.edu
% 0.11/0.18 % Model : x86_64 x86_64
% 0.11/0.18 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.18 % Memory : 8046.5625MB
% 0.11/0.18 % OS : Linux 6.8.0-71-generic
% 0.11/0.18 % CPULimit : 300
% 0.11/0.18 % WCLimit : 300
% 0.11/0.18 % DateTime : Tue Sep 29 13:24:37 UTC 2026
% 0.11/0.18 % CPUTime :
% 0.11/0.18 Running run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.11/0.23 Running higher-order theorem proving
% 0.11/0.24 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.HSYyV0MwhM/E---3.1_1265045.p
% 0.11/0.26 % Version: 3.5.1-ho
% 0.11/0.26 % Preprocessing class: HSSSSMSSSSSNFFN.
% 0.11/0.26 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.11/0.26 % Starting new_ho_10 with 1500s (5) cores
% 0.11/0.26 % Starting ho_unfolding_6 with 300s (1) cores
% 0.11/0.26 % Starting sh4l with 300s (1) cores
% 0.11/0.26 % Starting ehoh_best_nonlift_rwall with 300s (1) cores
% 0.11/0.26 % ho_unfolding_6 with pid 1265077 completed with status 0
% 0.11/0.26 % Result found by ho_unfolding_6
% 0.11/0.26 % Preprocessing class: HSSSSMSSSSSNFFN.
% 0.11/0.26 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.11/0.26 % Starting new_ho_10 with 1500s (5) cores
% 0.11/0.26 % Starting ho_unfolding_6 with 300s (1) cores
% 0.11/0.26 % (lift_lambdas = 0, lambda_to_forall = 0,unroll_only_formulas = 1, sine = Auto)
% 0.11/0.26 % No SInE strategy applied
% 0.11/0.26 % Search class: HGUNF-FFSF00-SFFFFFNN
% 0.11/0.26 % Scheduled 7 strats onto 1 cores with 300 seconds (300 total)
% 0.11/0.26 % Starting SubtermCWHack with 28s (1) cores
% 0.11/0.26 % SubtermCWHack with pid 1265081 completed with status 0
% 0.11/0.26 % Result found by SubtermCWHack
% 0.11/0.26 % Preprocessing class: HSSSSMSSSSSNFFN.
% 0.11/0.26 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.11/0.26 % Starting new_ho_10 with 1500s (5) cores
% 0.11/0.26 % Starting ho_unfolding_6 with 300s (1) cores
% 0.11/0.26 % (lift_lambdas = 0, lambda_to_forall = 0,unroll_only_formulas = 1, sine = Auto)
% 0.11/0.26 % No SInE strategy applied
% 0.11/0.26 % Search class: HGUNF-FFSF00-SFFFFFNN
% 0.11/0.26 % Scheduled 7 strats onto 1 cores with 300 seconds (300 total)
% 0.11/0.26 % Starting SubtermCWHack with 28s (1) cores
% 0.11/0.26 % Preprocessing time : 0.001 s
% 0.11/0.26
% 0.11/0.26 % Proof found!
% 0.11/0.26 % SZS status Theorem
% 0.11/0.26 % SZS output start CNFRefutation
% See solution above
% 0.11/0.26 % Parsed axioms : 4
% 0.11/0.26 % Removed by relevancy pruning/SinE : 0
% 0.11/0.26 % Initial clauses : 7
% 0.11/0.26 % Removed in clause preprocessing : 2
% 0.11/0.26 % Initial clauses in saturation : 5
% 0.11/0.26 % Processed clauses : 4
% 0.11/0.26 % ...of these trivial : 0
% 0.11/0.26 % ...subsumed : 0
% 0.11/0.26 % ...remaining for further processing : 3
% 0.11/0.26 % Other redundant clauses eliminated : 0
% 0.11/0.26 % Clauses deleted for lack of memory : 0
% 0.11/0.26 % Backward-subsumed : 1
% 0.11/0.26 % Backward-rewritten : 0
% 0.11/0.26 % Generated clauses : 0
% 0.11/0.26 % ...of the previous two non-redundant : 0
% 0.11/0.26 % ...aggressively subsumed : 0
% 0.11/0.26 % Contextual simplify-reflections : 1
% 0.11/0.26 % Paramodulations : 0
% 0.11/0.26 % Factorizations : 0
% 0.11/0.26 % NegExts : 0
% 0.11/0.26 % Equation resolutions : 0
% 0.11/0.26 % Disequality decompositions : 0
% 0.11/0.26 % Total rewrite steps : 1
% 0.11/0.26 % ...of those cached : 0
% 0.11/0.26 % Propositional unsat checks : 0
% 0.11/0.26 % Propositional check models : 0
% 0.11/0.26 % Propositional check unsatisfiable : 0
% 0.11/0.26 % Propositional clauses : 0
% 0.11/0.26 % Propositional clauses after purity: 0
% 0.11/0.26 % Propositional unsat core size : 0
% 0.11/0.26 % Propositional preprocessing time : 0.000
% 0.11/0.26 % Propositional encoding time : 0.000
% 0.11/0.26 % Propositional solver time : 0.000
% 0.11/0.26 % Success case prop preproc time : 0.000
% 0.11/0.26 % Success case prop encoding time : 0.000
% 0.11/0.26 % Success case prop solver time : 0.000
% 0.11/0.26 % Current number of processed clauses : 2
% 0.11/0.26 % Positive orientable unit clauses : 1
% 0.11/0.26 % Positive unorientable unit clauses: 0
% 0.11/0.26 % Negative unit clauses : 1
% 0.11/0.26 % Non-unit-clauses : 0
% 0.11/0.26 % Current number of unprocessed clauses: 1
% 0.11/0.26 % ...number of literals in the above : 3
% 0.11/0.26 % Current number of archived formulas : 0
% 0.11/0.26 % Current number of archived clauses : 1
% 0.11/0.26 % Clause-clause subsumption calls (NU) : 1
% 0.11/0.26 % Rec. Clause-clause subsumption calls : 1
% 0.11/0.26 % Non-unit clause-clause subsumptions : 1
% 0.11/0.26 % Unit Clause-clause subsumption calls : 1
% 0.11/0.26 % Rewrite failures with RHS unbound : 0
% 0.11/0.26 % BW rewrite match attempts : 1
% 0.11/0.26 % BW rewrite match successes : 1
% 0.11/0.26 % Condensation attempts : 0
% 0.11/0.26 % Condensation successes : 0
% 0.11/0.26 % Termbank termtop insertions : 401
% 0.11/0.26 % Search garbage collected termcells : 72
% 0.11/0.26
% 0.11/0.26 % -------------------------------------------------
% 0.11/0.26 % User time : 0.004 s
% 0.11/0.26 % System time : 0.002 s
% 0.11/0.26 % Total time : 0.006 s
% 0.11/0.26 % Maximum resident set size: 3624 pages
% 0.11/0.26
% 0.11/0.26 % -------------------------------------------------
% 0.11/0.26 % User time : 0.006 s
% 0.11/0.26 % System time : 0.005 s
% 0.11/0.26 % Total time : 0.012 s
% 0.11/0.26 % Maximum resident set size: 4608 pages
% 0.11/0.26 % E exiting
%------------------------------------------------------------------------------