%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : PUZ021-1 : TPTP v9.3.1. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p 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 : Fri Sep 25 02:32:43 PM UTC 2026
% Result : Unsatisfiable 3.75s 16.12s
% Output : CNFRefutation 3.75s
% Verified :
% SZS Type : Refutation
% Derivation depth : 29
% Number of leaves : 18
% Syntax : Number of formulae : 107 ( 16 unt; 3 def)
% Number of atoms : 372 ( 25 equ)
% Maximal formula atoms : 3 ( 3 avg)
% Number of connectives : 214 ( 85 ~; 129 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 7 ( 4 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of types : 1 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of predicates : 7 ( 5 usr; 4 prp; 0-2 aty)
% Number of functors : 6 ( 6 usr; 1 con; 0-2 aty)
% Number of variables : 158 ( 0 sgn 158 !; 0 ?; 132 :)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [X0,X1] :
( ~ a_truth(knave(X0),X1)
| ~ a_truth(knight(X0),X1) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',not_knight_and_knave) ).
fof(f2,axiom,
! [X0,X1] :
( a_truth(knave(X0),X1)
| a_truth(knight(X0),X1) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',knight_or_knave) ).
fof(f3,axiom,
! [X0,X1] :
( ~ a_truth(poor(X0),X1)
| ~ a_truth(rich(X0),X1) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',not_rich_and_poor) ).
fof(f5,axiom,
! [X2,X0,X1] :
( a_truth(X2,X1)
| ~ says(X0,X2)
| ~ a_truth(knight(X0),X1) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',knights_tell_truth1) ).
fof(f6,axiom,
! [X2,X0,X1] :
( ~ a_truth(X2,X1)
| says(X0,X2)
| ~ a_truth(knight(X0),X1) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',knights_tell_truth2) ).
fof(f7,axiom,
! [X2,X0,X1] :
( ~ a_truth(X2,X1)
| ~ says(X0,X2)
| ~ a_truth(knave(X0),X1) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',knaves_lie1) ).
fof(f8,axiom,
! [X2,X0,X1] :
( a_truth(X2,X1)
| says(X0,X2)
| ~ a_truth(knave(X0),X1) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',knaves_lie2) ).
fof(f9,axiom,
! [X2,X0,X1] :
( a_truth(X0,X2)
| ~ a_truth(and(X0,X1),X2) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',conjunction1) ).
fof(f10,axiom,
! [X2,X0,X1] :
( a_truth(X1,X2)
| ~ a_truth(and(X0,X1),X2) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',conjunction2) ).
fof(f12,negated_conjecture,
! [X0] :
( ~ a_truth(and(knave(me),rich(me)),X0)
| ~ says(me,X0) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_statement_exists1) ).
fof(f13,negated_conjecture,
! [X0] :
( a_truth(and(knave(me),rich(me)),X0)
| says(me,X0) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_statement_exists2) ).
tcf(c_62,plain,
! [X0: $i,X1: $i] :
( ~ a_truth(knave(X0),X1)
| ~ a_truth(knight(X0),X1) ),
inference(cnf_transformation,[],[f1]) ).
tcf(c_63,plain,
! [X0: $i,X1: $i] :
( a_truth(knave(X0),X1)
| a_truth(knight(X0),X1) ),
inference(cnf_transformation,[],[f2]) ).
tcf(c_64,plain,
! [X0: $i,X1: $i] :
( ~ a_truth(poor(X0),X1)
| ~ a_truth(rich(X0),X1) ),
inference(cnf_transformation,[],[f3]) ).
tcf(c_66,plain,
! [X0: $i,X1: $i,X2: $i] :
( a_truth(X2,X1)
| ~ says(X0,X2)
| ~ a_truth(knight(X0),X1) ),
inference(cnf_transformation,[],[f5]) ).
tcf(c_67,plain,
! [X0: $i,X1: $i,X2: $i] :
( says(X0,X2)
| ~ a_truth(X2,X1)
| ~ a_truth(knight(X0),X1) ),
inference(cnf_transformation,[],[f6]) ).
tcf(c_68,plain,
! [X0: $i,X1: $i,X2: $i] :
( ~ says(X0,X2)
| ~ a_truth(X2,X1)
| ~ a_truth(knave(X0),X1) ),
inference(cnf_transformation,[],[f7]) ).
tcf(c_69,plain,
! [X0: $i,X1: $i,X2: $i] :
( says(X0,X2)
| a_truth(X2,X1)
| ~ a_truth(knave(X0),X1) ),
inference(cnf_transformation,[],[f8]) ).
tcf(c_70,plain,
! [X0: $i,X1: $i,X2: $i] :
( a_truth(X0,X2)
| ~ a_truth(and(X0,X1),X2) ),
inference(cnf_transformation,[],[f9]) ).
tcf(c_71,plain,
! [X0: $i,X1: $i,X2: $i] :
( a_truth(X1,X2)
| ~ a_truth(and(X0,X1),X2) ),
inference(cnf_transformation,[],[f10]) ).
tcf(c_73,negated_conjecture,
! [X0: $i] :
( ~ says(me,X0)
| ~ a_truth(and(knave(me),rich(me)),X0) ),
inference(cnf_transformation,[],[f12]) ).
tcf(c_74,negated_conjecture,
! [X0: $i] :
( says(me,X0)
| a_truth(and(knave(me),rich(me)),X0) ),
inference(cnf_transformation,[],[f13]) ).
tcf(c_89,plain,
! [X0: $i,X1: $i] :
( a_truth(knight(X0),X1)
| a_truth(knave(X0),X1) ),
inference(prop_impl_just,[status(thm)],[c_63]) ).
tcf(c_90,plain,
! [X0: $i,X1: $i] :
( a_truth(knave(X0),X1)
| a_truth(knight(X0),X1) ),
inference(renaming,[status(thm)],[c_89]) ).
tcf(c_134,plain,
! [X0: $i,X1: $i,X2: $i] :
( a_truth(X1,X2)
| a_truth(knave(X0),X2)
| ~ says(X0,X1) ),
inference(bin_hyper_res,[status(thm)],[c_66,c_90]) ).
tcf(c_135,plain,
! [X0: $i,X1: $i,X2: $i] :
( says(X2,X0)
| a_truth(knave(X2),X1)
| ~ a_truth(X0,X1) ),
inference(bin_hyper_res,[status(thm)],[c_67,c_90]) ).
tcf(c_325,definition,
iPr_def_10 = knave(me),
introduced(definition,[new_symbols(definition,[iPr_def_10])],[]) ).
tcf(c_326,definition,
iPr_def_11 = rich(me),
introduced(definition,[new_symbols(definition,[iPr_def_11])],[]) ).
tcf(c_327,definition,
iPr_def_12 = and(iPr_def_10,iPr_def_11),
introduced(definition,[new_symbols(definition,[iPr_def_12])],[]) ).
tcf(c_328,negated_conjecture,
! [X0: $i] :
( says(me,X0)
| a_truth(iPr_def_12,X0) ),
inference(demodulation,[status(thm)],[c_74,c_326,c_325,c_327]) ).
tcf(c_329,negated_conjecture,
! [X0: $i] :
( ~ says(me,X0)
| ~ a_truth(iPr_def_12,X0) ),
inference(demodulation,[status(thm)],[c_73]) ).
tcf(c_330,plain,
! [X0: $i] : X0 = X0,
theory(equality) ).
tcf(c_332,plain,
! [X0: $i,X1: $i,X2: $i] :
( ( X2 = X0 )
| ( X2 != X1 )
| ( X0 != X1 ) ),
theory(equality) ).
tcf(c_333,plain,
! [X0: $i,X1: $i,X2: $i] :
( a_truth(X0,X2)
| ~ a_truth(X1,X2)
| ( X0 != X1 ) ),
theory(equality) ).
tcf(c_334,plain,
! [X0: $i,X1: $i] :
( ( knave(X0) = knave(X1) )
| ( X0 != X1 ) ),
theory(equality) ).
tcf(c_338,plain,
( ( knave(me) = knave(me) )
| ( me != me ) ),
inference(instantiation,[status(thm)],[c_334]) ).
tcf(c_341,plain,
me = me,
inference(instantiation,[status(thm)],[c_330]) ).
tcf(c_715,plain,
! [X0: $i] :
( a_truth(iPr_def_10,X0)
| ~ a_truth(iPr_def_12,X0) ),
inference(superposition,[status(thm)],[c_327,c_70]) ).
tcf(c_725,plain,
! [X0: $i,X1: $i] :
( a_truth(iPr_def_12,X1)
| a_truth(X1,X0)
| a_truth(knave(me),X0) ),
inference(superposition,[status(thm)],[c_328,c_134]) ).
tcf(c_726,plain,
! [X0: $i,X1: $i] :
( a_truth(iPr_def_12,X0)
| a_truth(iPr_def_10,X1)
| a_truth(X0,X1) ),
inference(light_normalisation,[status(thm)],[c_725,c_325]) ).
tcf(c_735,plain,
! [X0: $i] :
( a_truth(iPr_def_11,X0)
| ~ a_truth(iPr_def_12,X0) ),
inference(superposition,[status(thm)],[c_327,c_71]) ).
tcf(c_748,plain,
! [X0: $i] :
( ~ a_truth(iPr_def_11,X0)
| ~ a_truth(poor(me),X0) ),
inference(superposition,[status(thm)],[c_326,c_64]) ).
tcf(c_758,plain,
! [X0: $i,X1: $i] :
( says(me,X1)
| a_truth(X1,X0)
| ~ a_truth(iPr_def_10,X0) ),
inference(superposition,[status(thm)],[c_325,c_69]) ).
tcf(c_778,plain,
! [X0: $i,X1: $i] :
( a_truth(iPr_def_10,X1)
| a_truth(iPr_def_10,X0)
| a_truth(X0,X1) ),
inference(superposition,[status(thm)],[c_726,c_715]) ).
tcf(c_782,plain,
! [X0: $i,X1: $i,X2: $i] :
( a_truth(iPr_def_10,X2)
| a_truth(X1,X2)
| a_truth(iPr_def_12,and(X0,X1)) ),
inference(superposition,[status(thm)],[c_726,c_71]) ).
tcf(c_783,plain,
! [X0: $i,X1: $i,X2: $i] :
( a_truth(iPr_def_10,X2)
| a_truth(X0,X2)
| a_truth(iPr_def_12,and(X0,X1)) ),
inference(superposition,[status(thm)],[c_726,c_70]) ).
tcf(c_785,plain,
! [X0: $i] :
( a_truth(iPr_def_12,iPr_def_12)
| a_truth(iPr_def_10,X0) ),
inference(superposition,[status(thm)],[c_726,c_715]) ).
tcf(c_789,plain,
! [X0: $i] :
( a_truth(iPr_def_12,iPr_def_10)
| a_truth(iPr_def_10,X0) ),
inference(equality_factoring,[status(thm)],[c_726]) ).
tcf(c_822,plain,
( a_truth(iPr_def_12,iPr_def_12)
| a_truth(iPr_def_10,me) ),
inference(instantiation,[status(thm)],[c_785]) ).
tcf(c_833,plain,
! [X0: $i] :
( a_truth(iPr_def_10,iPr_def_12)
| a_truth(iPr_def_10,X0) ),
inference(superposition,[status(thm)],[c_785,c_715]) ).
tcf(c_844,plain,
! [X0: $i] :
( a_truth(iPr_def_11,iPr_def_10)
| a_truth(iPr_def_10,X0) ),
inference(superposition,[status(thm)],[c_789,c_735]) ).
tcf(c_894,plain,
! [X0: $i,X1: $i,X2: $i] :
( ~ says(X0,knave(X2))
| ~ a_truth(knave(X2),X1)
| ~ a_truth(knave(X0),X1) ),
inference(instantiation,[status(thm)],[c_68]) ).
tcf(c_895,plain,
( ~ says(me,knave(me))
| ~ a_truth(knave(me),me) ),
inference(instantiation,[status(thm)],[c_894]) ).
tcf(c_916,plain,
a_truth(iPr_def_10,iPr_def_10),
inference(equality_factoring,[status(thm)],[c_778]) ).
tcf(c_974,plain,
! [X0: $i,X1: $i] :
( a_truth(iPr_def_10,X1)
| a_truth(iPr_def_12,and(X0,iPr_def_12)) ),
inference(superposition,[status(thm)],[c_782,c_715]) ).
tcf(c_1447,plain,
! [X0: $i,X1: $i,X2: $i] :
( a_truth(knave(X0),X2)
| ~ a_truth(X1,X2)
| ( knave(X0) != X1 ) ),
inference(instantiation,[status(thm)],[c_333]) ).
tcf(c_1472,plain,
! [X0: $i,X1: $i,X2: $i] :
( ( knave(X0) = X2 )
| ( X2 != X1 )
| ( knave(X0) != X1 ) ),
inference(instantiation,[status(thm)],[c_332]) ).
tcf(c_1502,plain,
! [X0: $i] :
( a_truth(iPr_def_10,X0)
| a_truth(iPr_def_12,poor(me))
| ~ a_truth(iPr_def_11,X0) ),
inference(superposition,[status(thm)],[c_726,c_748]) ).
tcf(c_1651,plain,
! [X0: $i] :
( says(X0,iPr_def_10)
| a_truth(knave(X0),iPr_def_10) ),
inference(superposition,[status(thm)],[c_916,c_135]) ).
tcf(c_1652,plain,
! [X0: $i] :
( says(me,X0)
| a_truth(X0,iPr_def_10) ),
inference(superposition,[status(thm)],[c_916,c_758]) ).
tcf(c_1703,plain,
a_truth(iPr_def_10,iPr_def_12),
inference(equality_factoring,[status(thm)],[c_833]) ).
tcf(c_1706,plain,
! [X0: $i] :
( says(me,X0)
| a_truth(X0,iPr_def_12) ),
inference(superposition,[status(thm)],[c_1703,c_758]) ).
tcf(c_1723,plain,
! [X0: $i] :
( a_truth(iPr_def_12,iPr_def_11)
| a_truth(iPr_def_10,X0)
| a_truth(iPr_def_12,poor(me)) ),
inference(superposition,[status(thm)],[c_726,c_1502]) ).
tcf(c_2124,plain,
! [X0: $i,X1: $i] :
( ( knave(X0) = X1 )
| ( X1 != knave(X0) )
| ( knave(X0) != knave(X0) ) ),
inference(instantiation,[status(thm)],[c_1472]) ).
tcf(c_2186,plain,
( ~ says(me,iPr_def_12)
| ~ a_truth(iPr_def_12,iPr_def_12) ),
inference(instantiation,[status(thm)],[c_329]) ).
tcf(c_3243,plain,
( ( knave(me) = iPr_def_10 )
| ( iPr_def_10 != knave(me) )
| ( knave(me) != knave(me) ) ),
inference(instantiation,[status(thm)],[c_2124]) ).
tcf(c_4132,plain,
! [X0: $i] :
( ~ says(me,and(X0,iPr_def_12))
| ~ a_truth(iPr_def_12,and(X0,iPr_def_12)) ),
inference(instantiation,[status(thm)],[c_329]) ).
tcf(c_4933,plain,
! [X0: $i] :
( a_truth(X0,iPr_def_10)
| ~ a_truth(iPr_def_12,X0) ),
inference(superposition,[status(thm)],[c_1652,c_329]) ).
tcf(c_4946,plain,
! [X0: $i] :
( a_truth(X0,iPr_def_12)
| ~ a_truth(iPr_def_12,X0) ),
inference(superposition,[status(thm)],[c_1706,c_329]) ).
tcf(c_4982,plain,
! [X0: $i,X1: $i,X2: $i] :
( a_truth(iPr_def_10,X2)
| a_truth(X0,X2)
| a_truth(and(X0,X1),iPr_def_10) ),
inference(superposition,[status(thm)],[c_783,c_4933]) ).
tcf(c_4987,plain,
! [X0: $i] :
( a_truth(iPr_def_12,iPr_def_11)
| a_truth(iPr_def_10,X0)
| a_truth(poor(me),iPr_def_10) ),
inference(superposition,[status(thm)],[c_1723,c_4933]) ).
tcf(c_5149,plain,
! [X0: $i] :
( a_truth(iPr_def_12,iPr_def_11)
| a_truth(iPr_def_10,X0)
| a_truth(poor(me),iPr_def_12) ),
inference(superposition,[status(thm)],[c_1723,c_4946]) ).
tcf(c_5348,plain,
! [X0: $i] :
( a_truth(iPr_def_12,iPr_def_11)
| a_truth(iPr_def_10,X0)
| ~ a_truth(iPr_def_11,iPr_def_10) ),
inference(superposition,[status(thm)],[c_4987,c_748]) ).
tcf(c_5382,plain,
! [X0: $i] :
( a_truth(iPr_def_12,iPr_def_11)
| a_truth(iPr_def_10,X0) ),
inference(global_subsumption_just,[status(thm)],[c_5149,c_844,c_5348]) ).
tcf(c_5394,plain,
! [X0: $i] :
( a_truth(iPr_def_10,iPr_def_11)
| a_truth(iPr_def_10,X0) ),
inference(superposition,[status(thm)],[c_5382,c_715]) ).
tcf(c_6155,plain,
a_truth(iPr_def_10,iPr_def_11),
inference(equality_factoring,[status(thm)],[c_5394]) ).
tcf(c_6159,plain,
! [X0: $i] :
( says(me,X0)
| a_truth(X0,iPr_def_11) ),
inference(superposition,[status(thm)],[c_6155,c_758]) ).
tcf(c_6173,plain,
! [X0: $i] :
( a_truth(X0,iPr_def_11)
| ~ a_truth(iPr_def_12,X0) ),
inference(superposition,[status(thm)],[c_6159,c_329]) ).
tcf(c_6589,plain,
! [X0: $i,X1: $i,X2: $i] :
( a_truth(iPr_def_10,X1)
| a_truth(X2,iPr_def_10)
| a_truth(X0,X1) ),
inference(superposition,[status(thm)],[c_4982,c_71]) ).
tcf(c_6883,plain,
! [X0: $i,X1: $i] :
( a_truth(iPr_def_10,X1)
| a_truth(X0,iPr_def_10) ),
inference(equality_factoring,[status(thm)],[c_6589]) ).
tcf(c_7093,plain,
! [X0: $i,X1: $i] :
( a_truth(iPr_def_10,X1)
| ~ a_truth(knave(X0),iPr_def_10) ),
inference(superposition,[status(thm)],[c_6883,c_62]) ).
tcf(c_7161,plain,
! [X0: $i,X1: $i] :
( says(X0,iPr_def_10)
| ~ a_truth(X1,iPr_def_10)
| ~ says(X0,X1) ),
inference(superposition,[status(thm)],[c_1651,c_68]) ).
tcf(c_7491,plain,
! [X0: $i] :
( a_truth(knave(me),X0)
| ~ a_truth(iPr_def_10,X0)
| ( knave(me) != iPr_def_10 ) ),
inference(instantiation,[status(thm)],[c_1447]) ).
tcf(c_7494,plain,
( a_truth(knave(me),me)
| ~ a_truth(iPr_def_10,me)
| ( knave(me) != iPr_def_10 ) ),
inference(instantiation,[status(thm)],[c_7491]) ).
tcf(c_7885,plain,
! [X0: $i] : a_truth(iPr_def_10,X0),
inference(forward_subsumption_resolution,[status(thm)],[c_7093,c_6883]) ).
tcf(c_7887,plain,
! [X0: $i,X1: $i] :
( says(me,X0)
| a_truth(X0,X1) ),
inference(backward_subsumption_resolution,[status(thm)],[c_758,c_7885]) ).
tcf(c_7923,plain,
! [X0: $i,X1: $i,X2: $i] :
( a_truth(X1,X2)
| says(me,and(X0,X1)) ),
inference(superposition,[status(thm)],[c_7887,c_71]) ).
tcf(c_7926,plain,
! [X0: $i] :
( says(me,iPr_def_12)
| a_truth(X0,iPr_def_11) ),
inference(superposition,[status(thm)],[c_7887,c_6173]) ).
tcf(c_7997,plain,
( says(me,iPr_def_12)
| a_truth(iPr_def_11,iPr_def_11) ),
inference(superposition,[status(thm)],[c_7926,c_735]) ).
tcf(c_7998,plain,
( says(me,iPr_def_12)
| ~ a_truth(iPr_def_11,iPr_def_11) ),
inference(superposition,[status(thm)],[c_7926,c_748]) ).
tcf(c_8007,plain,
says(me,iPr_def_12),
inference(backward_subsumption_resolution,[status(thm)],[c_7997,c_7998]) ).
tcf(c_8009,plain,
~ a_truth(iPr_def_12,iPr_def_12),
inference(superposition,[status(thm)],[c_8007,c_329]) ).
tcf(c_8050,plain,
! [X0: $i] : says(me,and(X0,iPr_def_12)),
inference(superposition,[status(thm)],[c_7923,c_8009]) ).
tcf(c_8732,plain,
! [X0: $i,X1: $i] :
( a_truth(iPr_def_12,X1)
| a_truth(X1,X0)
| a_truth(knave(me),X0) ),
inference(superposition,[status(thm)],[c_328,c_134]) ).
tcf(c_8733,plain,
! [X0: $i,X1: $i] :
( a_truth(iPr_def_12,X0)
| a_truth(iPr_def_10,X1)
| a_truth(X0,X1) ),
inference(light_normalisation,[status(thm)],[c_8732,c_325]) ).
tcf(c_8782,plain,
! [X1: $i] : a_truth(iPr_def_10,X1),
inference(global_subsumption_just,[status(thm)],[c_8733,c_974,c_4132,c_8050]) ).
tcf(c_8783,plain,
! [X0: $i] : a_truth(iPr_def_10,X0),
inference(renaming,[status(thm)],[c_8782]) ).
tcf(c_8811,plain,
! [X0: $i,X1: $i] :
( says(me,X1)
| a_truth(X1,X0)
| ~ a_truth(iPr_def_10,X0) ),
inference(superposition,[status(thm)],[c_325,c_69]) ).
tcf(c_8812,plain,
! [X0: $i,X1: $i] :
( says(me,X0)
| a_truth(X0,X1) ),
inference(forward_subsumption_resolution,[status(thm)],[c_8811,c_8783]) ).
tcf(c_8870,plain,
! [X0: $i,X1: $i,X2: $i] :
( says(me,knave(X2))
| ~ says(X2,X0)
| ~ a_truth(X0,X1) ),
inference(superposition,[status(thm)],[c_8812,c_68]) ).
tcf(c_9930,plain,
! [X0: $i] :
( says(me,iPr_def_10)
| a_truth(iPr_def_12,X0)
| ~ a_truth(X0,iPr_def_10) ),
inference(superposition,[status(thm)],[c_328,c_7161]) ).
tcf(c_9935,plain,
( says(me,iPr_def_10)
| ~ a_truth(iPr_def_12,iPr_def_10) ),
inference(superposition,[status(thm)],[c_8007,c_7161]) ).
tcf(c_10101,plain,
( says(me,iPr_def_10)
| a_truth(iPr_def_12,iPr_def_10) ),
inference(superposition,[status(thm)],[c_7885,c_9930]) ).
tcf(c_10348,plain,
says(me,iPr_def_10),
inference(global_subsumption_just,[status(thm)],[c_10101,c_9935,c_10101]) ).
tcf(c_10897,plain,
! [X0: $i] :
( says(me,knave(X0))
| ~ says(X0,iPr_def_10) ),
inference(superposition,[status(thm)],[c_8783,c_8870]) ).
tcf(c_10961,plain,
( says(me,knave(me))
| ~ says(me,iPr_def_10) ),
inference(instantiation,[status(thm)],[c_10897]) ).
tcf(c_10962,plain,
$false,
inference(prop_impl_just,[status(thm)],[c_10961,c_10348,c_8007,c_7494,c_3243,c_2186,c_895,c_822,c_325,c_341,c_338]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : PUZ021-1 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.08/0.34 % Computer : n011.cluster.edu
% 0.08/0.34 % Model : x86_64 x86_64
% 0.08/0.34 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.34 % Memory : 8046.5625MB
% 0.08/0.34 % OS : Linux 6.8.0-71-generic
% 0.03/15.40 % CPULimit : 300
% 0.03/15.40 % WCLimit : 300
% 0.03/15.40 % DateTime : Thu Sep 24 06:42:39 UTC 2026
% 0.03/15.40 % CPUTime :
% 0.03/15.40 Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.03/15.44 Running first-order theorem proving
% 0.03/15.44 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
% 0.03/15.45
% 0.03/15.45 % ======== iProver multi-core TPTP/SMT =========
% 0.03/15.45
% 0.03/15.45 % Detected problem language: tptp
% 0.03/15.47 % Proving...
% 3.75/16.12 % SZS status Started for theBenchmark.p
% 3.75/16.12 % SZS status Unsatisfiable for theBenchmark.p
% 3.75/16.12
% 3.75/16.12 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 3.75/16.12
% 3.75/16.12 % ------ iProver source info
% 3.75/16.12
% 3.75/16.12 % git: date: 2026-07-19 20:42:38 +0200
% 3.75/16.12 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 3.75/16.12 % git: non_committed_changes: false
% 3.75/16.12
% 3.75/16.12 % ------ Parsing...% successful
% 3.75/16.12
% 3.75/16.12
% 3.75/16.12 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 3.75/16.12
% 3.75/16.12 % ------ Preprocessing... sf_s rm: 0 0s sf_e pe_s pe_e %
% 3.75/16.12
% 3.75/16.12 % ------ Preprocessing... gs_s sp: 0 0s gs_e snvd_s sp: 0 0s snvd_e %
% 3.75/16.12
% 3.75/16.12 % ------ Preprocessing... sf_s rm: 1 0s sf_e sf_s rm: 0 0s sf_e
% 3.75/16.12 % ------ Proving...
% 3.75/16.12 % ------ Problem Properties
% 3.75/16.12
% 3.75/16.12 %
% 3.75/16.12 % clauses 16
% 3.75/16.12 % conjectures 2
% 3.75/16.12 % EPR 2
% 3.75/16.12 % Horn 10
% 3.75/16.12 % unary 3
% 3.75/16.12 % binary 8
% 3.75/16.12 % lits 34
% 3.75/16.12 % lits eq 3
% 3.75/16.12 % fd_pure 0
% 3.75/16.12 % fd_pseudo 0
% 3.75/16.12 % fd_cond 0
% 3.75/16.12 % fd_pseudo_cond 0
% 3.75/16.12 % AC symbols 0
% 3.75/16.12
% 3.75/16.12 % ------ Schedule dynamic 5 is on
% 3.75/16.12
% 3.75/16.12 % ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 3.75/16.12
% 3.75/16.12
% 3.75/16.12 % ------
% 3.75/16.12 % Current options:
% 3.75/16.12 % ------
% 3.75/16.12
% 3.75/16.12
% 3.75/16.12 %
% 3.75/16.12
% 3.75/16.12 % ------ Proving...
% 3.75/16.12 %
% 3.75/16.12
% 3.75/16.12 % SZS status Unsatisfiable for theBenchmark.p
% 3.75/16.12
% 3.75/16.12 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 3.75/16.13
% 3.75/16.13
%------------------------------------------------------------------------------