%------------------------------------------------------------------------------
% File : CSE_E---1.7
% Problem : PUZ035-7 : TPTP v9.2.1. Released v2.0.0.
% Transfm : none
% Format : tptp:raw
% Command : /export/starexec/sandbox/solver/bin/lemma_parallel_prover %s --lemma-prover /export/starexec/sandbox/solver/bin/cse --final-prover /export/starexec/sandbox/solver/bin/eprover --proof-time %d --global-time-limit %d
% Computer : n022.cluster.edu
% Model : x86_64 x86_64
% CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory : 8042.1875MB
% OS : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit : 300s
% DateTime : Tue May 5 05:02:44 PM UTC 2026
% Result : Unsatisfiable 1.27s 1.72s
% Output : CNFRefutation 1.27s
% Verified :
% SZS Type : Refutation
% Derivation depth : 4
% Number of leaves : 3
% Syntax : Number of clauses : 9 ( 2 unt; 4 nHn; 5 RR)
% Number of literals : 18 ( 0 equ; 9 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 : 15 ( 9 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(prove_answer,negated_conjecture,
( ~ reply(asked,or(isa(asked,knight),isa(other,knight)),X1)
| ~ truth(isa(asked,X2))
| ~ truth(isa(other,X3)) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_answer) ).
cnf(yes_or_no,axiom,
( reply(X1,X2,yes)
| reply(X1,X2,no) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',yes_or_no) ).
cnf(everyone_a_knight_or_knave,axiom,
( truth(isa(X1,knight))
| truth(isa(X1,knave)) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',everyone_a_knight_or_knave) ).
cnf(c_0_3,negated_conjecture,
( ~ reply(asked,or(isa(asked,knight),isa(other,knight)),X1)
| ~ truth(isa(asked,X2))
| ~ truth(isa(other,X3)) ),
prove_answer ).
cnf(c_0_4,axiom,
( reply(X1,X2,yes)
| reply(X1,X2,no) ),
yes_or_no ).
cnf(c_0_5,negated_conjecture,
( ~ truth(isa(asked,X1))
| ~ truth(isa(other,X2)) ),
inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_3,c_0_4]),c_0_3]) ).
cnf(c_0_6,axiom,
( truth(isa(X1,knight))
| truth(isa(X1,knave)) ),
everyone_a_knight_or_knave ).
cnf(c_0_7,negated_conjecture,
~ truth(isa(other,X1)),
inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_5,c_0_6]),c_0_5]) ).
cnf(c_0_8,negated_conjecture,
$false,
inference(sr,[status(thm)],[inference(spm,[status(thm)],[c_0_7,c_0_6]),c_0_7]),
[proof] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.13 % Problem : PUZ035-7 : TPTP v9.2.1. Released v2.0.0.
% 0.11/0.13 % Command : /export/starexec/sandbox/solver/bin/lemma_parallel_prover %s --lemma-prover /export/starexec/sandbox/solver/bin/cse --final-prover /export/starexec/sandbox/solver/bin/eprover --proof-time %d --global-time-limit %d
% 0.15/0.34 % Computer : n022.cluster.edu
% 0.15/0.34 % Model : x86_64 x86_64
% 0.15/0.34 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.34 % Memory : 8042.1875MB
% 0.15/0.34 % OS : Linux 3.10.0-693.el7.x86_64
% 0.15/0.34 % CPULimit : 300
% 0.15/0.34 % WCLimit : 300
% 0.15/0.34 % DateTime : Tue May 5 01:33:36 EDT 2026
% 0.15/0.34 % CPUTime :
% 0.15/0.35 % start to proof: theBenchmark
% 1.27/1.72 % Version : CSE_E---1.7
% 1.27/1.72 % Problem : theBenchmark.p
% 1.27/1.72 % SZS status Unsatisfiable for theBenchmark.p
% 1.27/1.72 % SZS output start CNFRefutation
% See solution above
% 1.27/1.72 % Total time : 1.368s
%------------------------------------------------------------------------------