%------------------------------------------------------------------------------
% File : E-SAT---3.5.1
% Problem : PUZ035-7 : 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 : n011.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 02:02:23 PM UTC 2026
% Result : Unsatisfiable 0.15s 5.44s
% Output : CNFRefutation 0.15s
% Verified :
% SZS Type : Refutation
% Derivation depth : 5
% Number of leaves : 3
% Syntax : Number of clauses : 10 ( 2 unt; 4 nHn; 6 RR)
% Number of literals : 21 ( 0 equ; 12 neg)
% Maximal clause size : 3 ( 2 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 3 ( 2 usr; 1 prp; 0-3 aty)
% Number of functors : 8 ( 8 usr; 6 con; 0-2 aty)
% Number of variables : 18 ( 12 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(prove_answer,negated_conjecture,
( ~ truth(isa(other,X3))
| ~ truth(isa(asked,X2))
| ~ reply(asked,or(isa(asked,knight),isa(other,knight)),X1) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_answer) ).
cnf(yes_or_no,axiom,
( reply(X1,X2,no)
| reply(X1,X2,yes) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',yes_or_no) ).
cnf(everyone_a_knight_or_knave,axiom,
( truth(isa(X1,knave))
| truth(isa(X1,knight)) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',everyone_a_knight_or_knave) ).
cnf(c_0_3,negated_conjecture,
( ~ truth(isa(other,X3))
| ~ truth(isa(asked,X2))
| ~ reply(asked,or(isa(asked,knight),isa(other,knight)),X1) ),
inference(fof_simplification,[status(thm)],[prove_answer]) ).
cnf(c_0_4,negated_conjecture,
( ~ truth(isa(other,X3))
| ~ truth(isa(asked,X2))
| ~ reply(asked,or(isa(asked,knight),isa(other,knight)),X1) ),
c_0_3 ).
cnf(c_0_5,axiom,
( reply(X1,X2,no)
| reply(X1,X2,yes) ),
yes_or_no ).
cnf(c_0_6,negated_conjecture,
( ~ truth(isa(other,X2))
| ~ truth(isa(asked,X1)) ),
inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_4,c_0_5]),c_0_4]) ).
cnf(c_0_7,axiom,
( truth(isa(X1,knave))
| truth(isa(X1,knight)) ),
everyone_a_knight_or_knave ).
cnf(c_0_8,negated_conjecture,
~ truth(isa(other,X1)),
inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_6,c_0_7]),c_0_6]) ).
cnf(c_0_9,negated_conjecture,
$false,
inference(sr,[status(thm)],[inference(spm,[status(thm)],[c_0_8,c_0_7]),c_0_8]),
[proof] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : PUZ035-7 : TPTP v9.3.1. Released v2.0.0.
% 0.00/0.04 % Command : run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.09/5.37 % Computer : n011.cluster.edu
% 0.09/5.37 % Model : x86_64 x86_64
% 0.09/5.37 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/5.37 % Memory : 8046.5625MB
% 0.09/5.37 % OS : Linux 6.8.0-71-generic
% 0.09/5.37 % CPULimit : 300
% 0.09/5.37 % WCLimit : 300
% 0.09/5.37 % DateTime : Mon Sep 21 03:46:46 UTC 2026
% 0.09/5.37 % CPUTime :
% 0.09/5.37 Running run_E /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.15/5.42 Running first-order theorem proving
% 0.15/5.42 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
% 0.15/5.44 % Version: 3.5.1
% 0.15/5.44 % Preprocessing class: FSMSSMSSSSSNFFN.
% 0.15/5.44 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.15/5.44 % Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 0.15/5.44 % Starting new_bool_3 with 300s (1) cores
% 0.15/5.44 % Starting new_bool_1 with 300s (1) cores
% 0.15/5.44 % Starting sh5l with 300s (1) cores
% 0.15/5.44 % sh5l with pid 902748 completed with status 0
% 0.15/5.44 % Result found by sh5l
% 0.15/5.44 % Preprocessing class: FSMSSMSSSSSNFFN.
% 0.15/5.44 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.15/5.44 % Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 0.15/5.44 % Starting new_bool_3 with 300s (1) cores
% 0.15/5.44 % Starting new_bool_1 with 300s (1) cores
% 0.15/5.44 % Starting sh5l with 300s (1) cores
% 0.15/5.44 % (lift_lambdas = 0, lambda_to_forall = 0,unroll_only_formulas = 0, sine = gf500_gu_R04_F100_L20000)
% 0.15/5.44 % SinE strategy is gf500_gu_R04_F100_L20000
% 0.15/5.44 % Search class: FGHNF-FFSF22-SFFFFFNN
% 0.15/5.44 % Scheduled 5 strats onto 1 cores with 300 seconds (300 total)
% 0.15/5.44 % Starting SubtermCWHack with 31s (1) cores
% 0.15/5.44 % SubtermCWHack with pid 902755 completed with status 0
% 0.15/5.44 % Result found by SubtermCWHack
% 0.15/5.44 % Preprocessing class: FSMSSMSSSSSNFFN.
% 0.15/5.44 % Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.15/5.44 % Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 0.15/5.44 % Starting new_bool_3 with 300s (1) cores
% 0.15/5.44 % Starting new_bool_1 with 300s (1) cores
% 0.15/5.44 % Starting sh5l with 300s (1) cores
% 0.15/5.44 % (lift_lambdas = 0, lambda_to_forall = 0,unroll_only_formulas = 0, sine = gf500_gu_R04_F100_L20000)
% 0.15/5.44 % SinE strategy is gf500_gu_R04_F100_L20000
% 0.15/5.44 % Search class: FGHNF-FFSF22-SFFFFFNN
% 0.15/5.44 % Scheduled 5 strats onto 1 cores with 300 seconds (300 total)
% 0.15/5.44 % Starting SubtermCWHack with 31s (1) cores
% 0.15/5.44 % Preprocessing time : 0.001 s
% 0.15/5.44
% 0.15/5.44 % Proof found!
% 0.15/5.44 % SZS status Unsatisfiable
% 0.15/5.44 % SZS output start CNFRefutation
% See solution above
% 0.15/5.44 % Parsed axioms : 14
% 0.15/5.44 % Removed by relevancy pruning/SinE : 2
% 0.15/5.44 % Initial clauses : 12
% 0.15/5.44 % Removed in clause preprocessing : 0
% 0.15/5.44 % Initial clauses in saturation : 12
% 0.15/5.44 % Processed clauses : 14
% 0.15/5.44 % ...of these trivial : 0
% 0.15/5.44 % ...subsumed : 0
% 0.15/5.44 % ...remaining for further processing : 14
% 0.15/5.44 % Other redundant clauses eliminated : 0
% 0.15/5.44 % Clauses deleted for lack of memory : 0
% 0.15/5.44 % Backward-subsumed : 2
% 0.15/5.44 % Backward-rewritten : 0
% 0.15/5.44 % Generated clauses : 13
% 0.15/5.44 % ...of the previous two non-redundant : 4
% 0.15/5.44 % ...aggressively subsumed : 0
% 0.15/5.44 % Contextual simplify-reflections : 2
% 0.15/5.44 % Paramodulations : 13
% 0.15/5.44 % Factorizations : 0
% 0.15/5.44 % NegExts : 0
% 0.15/5.44 % Equation resolutions : 0
% 0.15/5.44 % Disequality decompositions : 0
% 0.15/5.44 % Total rewrite steps : 0
% 0.15/5.44 % ...of those cached : 0
% 0.15/5.44 % Propositional unsat checks : 0
% 0.15/5.44 % Propositional check models : 0
% 0.15/5.44 % Propositional check unsatisfiable : 0
% 0.15/5.44 % Propositional clauses : 0
% 0.15/5.44 % Propositional clauses after purity: 0
% 0.15/5.44 % Propositional unsat core size : 0
% 0.15/5.44 % Propositional preprocessing time : 0.000
% 0.15/5.44 % Propositional encoding time : 0.000
% 0.15/5.44 % Propositional solver time : 0.000
% 0.15/5.44 % Success case prop preproc time : 0.000
% 0.15/5.44 % Success case prop encoding time : 0.000
% 0.15/5.44 % Success case prop solver time : 0.000
% 0.15/5.44 % Current number of processed clauses : 12
% 0.15/5.44 % Positive orientable unit clauses : 0
% 0.15/5.44 % Positive unorientable unit clauses: 0
% 0.15/5.44 % Negative unit clauses : 1
% 0.15/5.44 % Non-unit-clauses : 11
% 0.15/5.44 % Current number of unprocessed clauses: 2
% 0.15/5.44 % ...number of literals in the above : 8
% 0.15/5.44 % Current number of archived formulas : 0
% 0.15/5.44 % Current number of archived clauses : 2
% 0.15/5.44 % Clause-clause subsumption calls (NU) : 13
% 0.15/5.44 % Rec. Clause-clause subsumption calls : 11
% 0.15/5.44 % Non-unit clause-clause subsumptions : 3
% 0.15/5.44 % Unit Clause-clause subsumption calls : 1
% 0.15/5.44 % Rewrite failures with RHS unbound : 0
% 0.15/5.44 % BW rewrite match attempts : 0
% 0.15/5.44 % BW rewrite match successes : 0
% 0.15/5.44 % Condensation attempts : 0
% 0.15/5.44 % Condensation successes : 0
% 0.15/5.44 % Termbank termtop insertions : 651
% 0.15/5.44 % Search garbage collected termcells : 34
% 0.15/5.44
% 0.15/5.44 % -------------------------------------------------
% 0.15/5.44 % User time : 0.003 s
% 0.15/5.44 % System time : 0.002 s
% 0.15/5.44 % Total time : 0.005 s
% 0.15/5.44 % Maximum resident set size: 3640 pages
% 0.15/5.44
% 0.15/5.44 % -------------------------------------------------
% 0.15/5.44 % User time : 0.004 s
% 0.15/5.44 % System time : 0.008 s
% 0.15/5.44 % Total time : 0.012 s
% 0.15/5.44 % Maximum resident set size: 4608 pages
% 0.15/5.44 % E exiting
%------------------------------------------------------------------------------