%------------------------------------------------------------------------------
% File : E---3.5.1
% Problem : PUZ035-4 : TPTP v9.3.1. Released v2.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% Computer : n003.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 02:01:39 PM UTC 2026
% Result : Unsatisfiable 0.28s 0.57s
% Output : CNFRefutation 0.28s
% Verified :
% SZS Type : Refutation
% Derivation depth : 5
% Number of leaves : 5
% Syntax : Number of clauses : 17 ( 6 unt; 7 nHn; 17 RR)
% Number of literals : 34 ( 0 equ; 15 neg)
% Maximal clause size : 3 ( 2 avg)
% Maximal term depth : 4 ( 1 avg)
% Number of predicates : 4 ( 3 usr; 1 prp; 0-2 aty)
% Number of functors : 7 ( 7 usr; 4 con; 0-2 aty)
% Number of variables : 15 ( 12 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(prove_answer,negated_conjecture,
( ~ says(asked,X3)
| ~ truth(isa(other,X2))
| ~ truth(isa(asked,X1)) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_answer) ).
cnf(everyone_a_knight_or_knave,axiom,
( ~ person(X1)
| truth(isa(X1,knave))
| truth(isa(X1,knight)) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',everyone_a_knight_or_knave) ).
cnf(one_is_knight_answer,axiom,
( says(asked,not(or(isa(asked,knight),isa(other,knight))))
| says(asked,or(isa(asked,knight),isa(other,knight))) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',one_is_knight_answer) ).
cnf(asked_person,axiom,
person(asked),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',asked_person) ).
cnf(other_person,axiom,
person(other),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',other_person) ).
cnf(c_0_5,negated_conjecture,
( ~ says(asked,X3)
| ~ truth(isa(other,X2))
| ~ truth(isa(asked,X1)) ),
inference(fof_simplification,[status(thm)],[prove_answer]) ).
cnf(c_0_6,plain,
( ~ person(X1)
| truth(isa(X1,knave))
| truth(isa(X1,knight)) ),
inference(fof_simplification,[status(thm)],[everyone_a_knight_or_knave]) ).
cnf(c_0_7,negated_conjecture,
( ~ says(asked,X3)
| ~ truth(isa(other,X2))
| ~ truth(isa(asked,X1)) ),
c_0_5 ).
cnf(c_0_8,axiom,
( says(asked,not(or(isa(asked,knight),isa(other,knight))))
| says(asked,or(isa(asked,knight),isa(other,knight))) ),
one_is_knight_answer ).
cnf(c_0_9,plain,
( ~ person(X1)
| truth(isa(X1,knave))
| truth(isa(X1,knight)) ),
c_0_6 ).
cnf(c_0_10,axiom,
person(asked),
asked_person ).
cnf(c_0_11,axiom,
person(other),
other_person ).
cnf(c_0_12,negated_conjecture,
( ~ truth(isa(other,X2))
| ~ truth(isa(asked,X1)) ),
inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_7,c_0_8]),c_0_7]) ).
cnf(c_0_13,plain,
( truth(isa(asked,knight))
| truth(isa(asked,knave)) ),
inference(spm,[status(thm)],[c_0_9,c_0_10]) ).
cnf(c_0_14,plain,
( truth(isa(other,knight))
| truth(isa(other,knave)) ),
inference(spm,[status(thm)],[c_0_9,c_0_11]) ).
cnf(c_0_15,negated_conjecture,
~ truth(isa(other,X1)),
inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_12,c_0_13]),c_0_12]) ).
cnf(c_0_16,plain,
$false,
inference(sr,[status(thm)],[inference(sr,[status(thm)],[c_0_14,c_0_15]),c_0_15]),
[proof] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.04 % Problem : PUZ035-4 : TPTP v9.3.1. Released v2.0.0.
% 0.00/0.06 % Command : run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.17/0.43 % Computer : n003.cluster.edu
% 0.17/0.43 % Model : x86_64 x86_64
% 0.17/0.43 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.17/0.43 % Memory : 8046.5625MB
% 0.17/0.43 % OS : Linux 6.8.0-71-generic
% 0.17/0.43 % CPULimit : 300
% 0.17/0.43 % WCLimit : 300
% 0.17/0.43 % DateTime : Mon Sep 21 03:48:16 UTC 2026
% 0.17/0.44 % CPUTime :
% 0.17/0.44 Running run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.17/0.51 Running first-order theorem proving
% 0.17/0.51 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
% 0.28/0.57 % Version: 3.5.1
% 0.28/0.57 % Preprocessing class: FSMSSMSSSSSNFFN.
% 0.28/0.57 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.28/0.57 % Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 0.28/0.57 % Starting new_bool_3 with 300s (1) cores
% 0.28/0.57 % Starting new_bool_1 with 300s (1) cores
% 0.28/0.57 % Starting sh5l with 300s (1) cores
% 0.28/0.57 % G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with pid 3337110 completed with status 0
% 0.28/0.57 % Result found by G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN
% 0.28/0.57 % Preprocessing class: FSMSSMSSSSSNFFN.
% 0.28/0.57 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.28/0.57 % Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 0.28/0.57 % (lift_lambdas = 1, lambda_to_forall = 1,unroll_only_formulas = 1, sine = Auto)
% 0.28/0.57 % No SInE strategy applied
% 0.28/0.57 % Search class: FGHNF-FFSS21-MFFFFFNN
% 0.28/0.57 % Scheduled 7 strats onto 5 cores with 1500 seconds (1500 total)
% 0.28/0.57 % Starting SubtermCWHack with 136s (1) cores
% 0.28/0.57 % Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 151s (1) cores
% 0.28/0.57 % Starting G-E--_208_C18_F1_SE_CS_SP_PS_S5PRR_S0Y with 136s (1) cores
% 0.28/0.57 % Starting new_bool_3 with 136s (1) cores
% 0.28/0.57 % Starting new_bool_1 with 136s (1) cores
% 0.28/0.57 % new_bool_3 with pid 3337117 completed with status 0
% 0.28/0.57 % Result found by new_bool_3
% 0.28/0.57 % Preprocessing class: FSMSSMSSSSSNFFN.
% 0.28/0.57 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.28/0.57 % Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 0.28/0.57 % (lift_lambdas = 1, lambda_to_forall = 1,unroll_only_formulas = 1, sine = Auto)
% 0.28/0.57 % No SInE strategy applied
% 0.28/0.57 % Search class: FGHNF-FFSS21-MFFFFFNN
% 0.28/0.57 % Scheduled 7 strats onto 5 cores with 1500 seconds (1500 total)
% 0.28/0.57 % Starting SubtermCWHack with 136s (1) cores
% 0.28/0.57 % Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 151s (1) cores
% 0.28/0.57 % Starting G-E--_208_C18_F1_SE_CS_SP_PS_S5PRR_S0Y with 136s (1) cores
% 0.28/0.57 % Starting new_bool_3 with 136s (1) cores
% 0.28/0.57 % Preprocessing time : 0.001 s
% 0.28/0.57 % Presaturation interreduction done
% 0.28/0.57
% 0.28/0.57 % Proof found!
% 0.28/0.57 % SZS status Unsatisfiable
% 0.28/0.57 % SZS output start CNFRefutation
% See solution above
% 0.28/0.57 % Parsed axioms : 14
% 0.28/0.57 % Removed by relevancy pruning/SinE : 0
% 0.28/0.57 % Initial clauses : 14
% 0.28/0.57 % Removed in clause preprocessing : 0
% 0.28/0.57 % Initial clauses in saturation : 14
% 0.28/0.57 % Processed clauses : 32
% 0.28/0.57 % ...of these trivial : 0
% 0.28/0.57 % ...subsumed : 0
% 0.28/0.57 % ...remaining for further processing : 32
% 0.28/0.57 % Other redundant clauses eliminated : 0
% 0.28/0.57 % Clauses deleted for lack of memory : 0
% 0.28/0.57 % Backward-subsumed : 2
% 0.28/0.57 % Backward-rewritten : 0
% 0.28/0.57 % Generated clauses : 9
% 0.28/0.57 % ...of the previous two non-redundant : 8
% 0.28/0.57 % ...aggressively subsumed : 0
% 0.28/0.57 % Contextual simplify-reflections : 2
% 0.28/0.57 % Paramodulations : 8
% 0.28/0.57 % Factorizations : 0
% 0.28/0.57 % NegExts : 0
% 0.28/0.57 % Equation resolutions : 0
% 0.28/0.57 % Disequality decompositions : 0
% 0.28/0.57 % Total rewrite steps : 0
% 0.28/0.57 % ...of those cached : 0
% 0.28/0.57 % Propositional unsat checks : 0
% 0.28/0.57 % Propositional check models : 0
% 0.28/0.57 % Propositional check unsatisfiable : 0
% 0.28/0.57 % Propositional clauses : 0
% 0.28/0.57 % Propositional clauses after purity: 0
% 0.28/0.57 % Propositional unsat core size : 0
% 0.28/0.57 % Propositional preprocessing time : 0.000
% 0.28/0.57 % Propositional encoding time : 0.000
% 0.28/0.57 % Propositional solver time : 0.000
% 0.28/0.57 % Success case prop preproc time : 0.000
% 0.28/0.57 % Success case prop encoding time : 0.000
% 0.28/0.57 % Success case prop solver time : 0.000
% 0.28/0.57 % Current number of processed clauses : 15
% 0.28/0.57 % Positive orientable unit clauses : 2
% 0.28/0.57 % Positive unorientable unit clauses: 0
% 0.28/0.57 % Negative unit clauses : 1
% 0.28/0.57 % Non-unit-clauses : 12
% 0.28/0.57 % Current number of unprocessed clauses: 4
% 0.28/0.57 % ...number of literals in the above : 12
% 0.28/0.57 % Current number of archived formulas : 0
% 0.28/0.57 % Current number of archived clauses : 17
% 0.28/0.57 % Clause-clause subsumption calls (NU) : 26
% 0.28/0.57 % Rec. Clause-clause subsumption calls : 19
% 0.28/0.57 % Non-unit clause-clause subsumptions : 3
% 0.28/0.57 % Unit Clause-clause subsumption calls : 3
% 0.28/0.57 % Rewrite failures with RHS unbound : 0
% 0.28/0.57 % BW rewrite match attempts : 0
% 0.28/0.57 % BW rewrite match successes : 0
% 0.28/0.57 % Condensation attempts : 0
% 0.28/0.57 % Condensation successes : 0
% 0.28/0.57 % Termbank termtop insertions : 795
% 0.28/0.57 % Search garbage collected termcells : 41
% 0.28/0.57
% 0.28/0.57 % -------------------------------------------------
% 0.28/0.57 % User time : 0.003 s
% 0.28/0.57 % System time : 0.005 s
% 0.28/0.57 % Total time : 0.008 s
% 0.28/0.57 % Maximum resident set size: 3640 pages
% 0.28/0.57
% 0.28/0.57 % -------------------------------------------------
% 0.28/0.57 % User time : 0.020 s
% 0.28/0.57 % System time : 0.018 s
% 0.28/0.57 % Total time : 0.038 s
% 0.28/0.57 % Maximum resident set size: 4608 pages
% 0.28/0.57 % E exiting
%------------------------------------------------------------------------------