%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : PUZ035-5 : TPTP v9.3.1. Released v2.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% Computer : n013.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 : Fri Sep 25 02:32:47 PM UTC 2026
% Result : Unsatisfiable 0.19s 1.26s
% Output : CNFRefutation 0.19s
% Verified :
% SZS Type : Refutation
% Derivation depth : 5
% Number of leaves : 2
% Syntax : Number of formulae : 17 ( 1 unt; 0 def)
% Number of atoms : 33 ( 0 equ)
% Maximal formula atoms : 2 ( 1 avg)
% Number of connectives : 36 ( 20 ~; 16 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 5 ( 3 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of types : 1 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of predicates : 4 ( 3 usr; 3 prp; 0-1 aty)
% Number of functors : 5 ( 5 usr; 4 con; 0-2 aty)
% Number of variables : 10 ( 0 sgn 10 !; 0 ?; 7 :)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [X0] :
( truth(isa(X0,knave))
| truth(isa(X0,knight)) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',everyone_a_knight_or_knave) ).
fof(f9,negated_conjecture,
! [X0,X1] :
( ~ truth(isa(other,X1))
| ~ truth(isa(asked,X0)) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',query) ).
tcf(c_58,plain,
! [X0: $i] :
( truth(isa(X0,knave))
| truth(isa(X0,knight)) ),
inference(cnf_transformation,[],[f1]) ).
tcf(c_66,negated_conjecture,
! [X0: $i,X1: $i] :
( ~ truth(isa(other,X1))
| ~ truth(isa(asked,X0)) ),
inference(cnf_transformation,[],[f9]) ).
tcf(c_243,negated_conjecture,
! [X0: $i] :
( ~ iPr_def_10
| ~ truth(isa(other,X0)) ),
inference(splitting,[splitting(split),new_symbols(definition,[iPr_def_10])],[c_66]) ).
tcf(c_244,negated_conjecture,
! [X0: $i] :
( ~ iPr_def_11
| ~ truth(isa(asked,X0)) ),
inference(splitting,[splitting(split),new_symbols(definition,[iPr_def_11])],[c_66]) ).
tcf(c_245,negated_conjecture,
( iPr_def_11
| iPr_def_10 ),
inference(splitting,[splitting(split),new_symbols(definition,[])],[c_66]) ).
tcf(c_246,negated_conjecture,
( iPr_def_11
| iPr_def_10 ),
inference(demodulation,[status(thm)],[c_245]) ).
tcf(c_247,negated_conjecture,
! [X0: $i] :
( ~ iPr_def_11
| ~ truth(isa(asked,X0)) ),
inference(demodulation,[status(thm)],[c_244]) ).
tcf(c_248,negated_conjecture,
! [X0: $i] :
( ~ iPr_def_10
| ~ truth(isa(other,X0)) ),
inference(demodulation,[status(thm)],[c_243]) ).
tcf(c_249,plain,
( ~ iPr_def_10
| ~ truth(isa(other,knight)) ),
inference(instantiation,[status(thm)],[c_248]) ).
tcf(c_250,plain,
( ~ iPr_def_11
| ~ truth(isa(asked,knight)) ),
inference(instantiation,[status(thm)],[c_247]) ).
tcf(c_251,plain,
( truth(isa(other,knave))
| truth(isa(other,knight)) ),
inference(instantiation,[status(thm)],[c_58]) ).
tcf(c_267,plain,
( ~ iPr_def_10
| ~ truth(isa(other,knave)) ),
inference(instantiation,[status(thm)],[c_248]) ).
tcf(c_275,plain,
( ~ iPr_def_11
| ~ truth(isa(asked,knave)) ),
inference(instantiation,[status(thm)],[c_247]) ).
tcf(c_297,plain,
( truth(isa(asked,knave))
| truth(isa(asked,knight)) ),
inference(instantiation,[status(thm)],[c_58]) ).
tcf(c_312,plain,
$false,
inference(prop_impl_just,[status(thm)],[c_297,c_275,c_267,c_251,c_250,c_249,c_246]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : PUZ035-5 : TPTP v9.3.1. Released v2.0.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.09/0.35 % Computer : n013.cluster.edu
% 0.09/0.35 % Model : x86_64 x86_64
% 0.09/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.35 % Memory : 8046.5625MB
% 0.09/0.35 % OS : Linux 6.8.0-71-generic
% 0.09/0.35 % CPULimit : 300
% 0.09/0.35 % WCLimit : 300
% 0.09/0.35 % DateTime : Thu Sep 24 06:43:21 UTC 2026
% 0.13/0.36 % CPUTime :
% 0.13/0.36 Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.13/0.39 Running first-order theorem proving
% 0.13/0.39 Running: /export/starexec/sandbox/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s fof_schedule -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.13/0.41
% 0.13/0.41 % ======== iProver multi-core TPTP/SMT =========
% 0.13/0.41
% 0.13/0.41 % Detected problem language: tptp
% 0.13/0.42 % Proving...
% 0.19/1.26 % SZS status Started for theBenchmark.p
% 0.19/1.26 % SZS status Unsatisfiable for theBenchmark.p
% 0.19/1.26
% 0.19/1.26 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 0.19/1.26
% 0.19/1.26 % ------ iProver source info
% 0.19/1.26
% 0.19/1.26 % git: date: 2026-07-19 20:42:38 +0200
% 0.19/1.26 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 0.19/1.26 % git: non_committed_changes: false
% 0.19/1.26
% 0.19/1.26 % ------ Parsing...% successful
% 0.19/1.26
% 0.19/1.26
% 0.19/1.26 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 0.19/1.26
% 0.19/1.26 % ------ Preprocessing... sf_s rm: 0 0s sf_e pe_s pe:1:0s pe_e sf_s rm: 0 0s sf_e pe_s pe_e %
% 0.19/1.26
% 0.19/1.26 % ------ Preprocessing... gs_s sp: 2 0s gs_e snvd_s sp: 0 0s snvd_e
% 0.19/1.26 % ------ Proving...
% 0.19/1.26 % ------ Problem Properties
% 0.19/1.26
% 0.19/1.26 %
% 0.19/1.26 % clauses 10
% 0.19/1.26 % conjectures 3
% 0.19/1.26 % EPR 1
% 0.19/1.26 % Horn 6
% 0.19/1.26 % unary 0
% 0.19/1.26 % binary 9
% 0.19/1.26 % lits 21
% 0.19/1.26 % lits eq 0
% 0.19/1.26 % fd_pure 0
% 0.19/1.26 % fd_pseudo 0
% 0.19/1.26 % fd_cond 0
% 0.19/1.26 % fd_pseudo_cond 0
% 0.19/1.26 % AC symbols 0
% 0.19/1.26
% 0.19/1.26 % ------ Schedule dynamic 5 is on
% 0.19/1.26
% 0.19/1.26 % ------ no equalities: superposition off
% 0.19/1.26
% 0.19/1.26 % ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 0.19/1.26
% 0.19/1.26
% 0.19/1.26 % ------
% 0.19/1.26 % Current options:
% 0.19/1.26 % ------
% 0.19/1.26
% 0.19/1.26
% 0.19/1.26 %
% 0.19/1.26
% 0.19/1.26 % ------ Proving...
% 0.19/1.26 %
% 0.19/1.26
% 0.19/1.26 % SZS status Unsatisfiable for theBenchmark.p
% 0.19/1.26
% 0.19/1.26 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 0.19/1.26
% 0.19/1.26
%------------------------------------------------------------------------------