%------------------------------------------------------------------------------
% File : Drodi---4.1.1
% Problem : CSR147+1 : TPTP v9.3.1. Released v4.1.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n018.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 12:14:21 PM UTC 2026
% Result : Theorem 0.14s 0.38s
% Output : CNFRefutation 0.14s
% Verified :
% SZS Type : Refutation
% Derivation depth : 7
% Number of leaves : 12
% Syntax : Number of formulae : 42 ( 20 unt; 4 def)
% Number of atoms : 93 ( 2 equ)
% Maximal formula atoms : 6 ( 2 avg)
% Number of connectives : 98 ( 47 ~; 43 |; 2 &)
% ( 4 <=>; 2 =>; 0 <=; 0 <~>)
% Maximal formula depth : 9 ( 3 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 11 ( 9 usr; 5 prp; 0-2 aty)
% Number of functors : 5 ( 5 usr; 4 con; 0-1 aty)
% Number of variables : 21 ( 21 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f5,axiom,
s__Human(jim),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f7,axiom,
! [O,OAge,YAge] :
( s__Human(O)
=> ( ( greater(OAge,YAge)
& s__age(s__siblingFn(O),YAge)
& s__age(O,OAge) )
=> ( s__has_seen_more(s__siblingFn(O),O)
| s__more_experienced(O,s__siblingFn(O)) ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f9,axiom,
s__age(geoff,n48),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f10,axiom,
s__age(jim,n54),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f11,axiom,
greater(n54,n48),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f12,axiom,
geoff = s__siblingFn(jim),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f13,axiom,
~ s__has_seen_more(geoff,jim),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f14,conjecture,
s__more_experienced(jim,geoff),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f15,negated_conjecture,
~ s__more_experienced(jim,geoff),
inference(negated_conjecture,[status(cth)],[f14]) ).
fof(f23,plain,
s__Human(jim),
inference(cnf_transformation,[status(thm)],[f5]) ).
fof(f26,plain,
! [O,OAge,YAge] :
( s__has_seen_more(s__siblingFn(O),O)
| s__more_experienced(O,s__siblingFn(O))
| ~ greater(OAge,YAge)
| ~ s__age(s__siblingFn(O),YAge)
| ~ s__age(O,OAge)
| ~ s__Human(O) ),
inference(pre_NNF_transformation,[status(thm)],[f7]) ).
fof(f27,plain,
! [O] :
( s__has_seen_more(s__siblingFn(O),O)
| s__more_experienced(O,s__siblingFn(O))
| ! [OAge,YAge] :
( ~ greater(OAge,YAge)
| ~ s__age(s__siblingFn(O),YAge)
| ~ s__age(O,OAge) )
| ~ s__Human(O) ),
inference(miniscoping,[status(thm)],[f26]) ).
fof(f28,plain,
! [X0,X1,X2] :
( s__has_seen_more(s__siblingFn(X0),X0)
| s__more_experienced(X0,s__siblingFn(X0))
| ~ greater(X1,X2)
| ~ s__age(s__siblingFn(X0),X2)
| ~ s__age(X0,X1)
| ~ s__Human(X0) ),
inference(cnf_transformation,[status(thm)],[f27]) ).
fof(f31,plain,
s__age(geoff,n48),
inference(cnf_transformation,[status(thm)],[f9]) ).
fof(f32,plain,
s__age(jim,n54),
inference(cnf_transformation,[status(thm)],[f10]) ).
fof(f33,plain,
greater(n54,n48),
inference(cnf_transformation,[status(thm)],[f11]) ).
fof(f34,plain,
geoff = s__siblingFn(jim),
inference(cnf_transformation,[status(thm)],[f12]) ).
fof(f35,plain,
~ s__has_seen_more(geoff,jim),
inference(cnf_transformation,[status(thm)],[f13]) ).
fof(f36,plain,
~ s__more_experienced(jim,geoff),
inference(cnf_transformation,[status(thm)],[f15]) ).
fof(f38,plain,
! [X0,X1] :
( s__has_seen_more(s__siblingFn(jim),jim)
| s__more_experienced(jim,geoff)
| ~ greater(X0,X1)
| ~ s__age(s__siblingFn(jim),X1)
| ~ s__age(jim,X0)
| ~ s__Human(jim) ),
inference(paramodulation,[status(thm)],[f34,f28]) ).
fof(f40,definition,
( sQ0_spl
<=> s__Human(jim) ),
introduced(definition,[new_symbols(definition,[sQ0_spl])],[split_symbol_definition]) ).
fof(f42,plain,
( sQ0_spl
| ~ s__Human(jim) ),
inference(component_clause,[status(thm)],[f40]) ).
fof(f43,definition,
! [X0,X1] :
( sQ1_spl
<=> ( ~ greater(X0,X1)
| ~ s__age(s__siblingFn(jim),X1)
| ~ s__age(jim,X0) ) ),
introduced(definition,[new_symbols(definition,[sQ1_spl])],[split_symbol_definition]) ).
fof(f44,plain,
! [X0,X1] :
( ~ sQ1_spl
| ~ greater(X0,X1)
| ~ s__age(s__siblingFn(jim),X1)
| ~ s__age(jim,X0) ),
inference(component_clause,[status(thm)],[f43]) ).
fof(f46,definition,
( sQ2_spl
<=> s__more_experienced(jim,geoff) ),
introduced(definition,[new_symbols(definition,[sQ2_spl])],[split_symbol_definition]) ).
fof(f47,plain,
( ~ sQ2_spl
| s__more_experienced(jim,geoff) ),
inference(component_clause,[status(thm)],[f46]) ).
fof(f49,definition,
( sQ3_spl
<=> s__has_seen_more(s__siblingFn(jim),jim) ),
introduced(definition,[new_symbols(definition,[sQ3_spl])],[split_symbol_definition]) ).
fof(f50,plain,
( ~ sQ3_spl
| s__has_seen_more(s__siblingFn(jim),jim) ),
inference(component_clause,[status(thm)],[f49]) ).
fof(f52,plain,
( sQ3_spl
| sQ2_spl
| sQ1_spl
| ~ sQ0_spl ),
inference(split_clause,[status(thm)],[f38,f40,f43,f46,f49]) ).
fof(f60,plain,
! [X0,X1] :
( ~ sQ1_spl
| ~ greater(X0,X1)
| ~ s__age(geoff,X1)
| ~ s__age(jim,X0) ),
inference(forward_demodulation,[status(thm)],[f34,f44]) ).
fof(f61,plain,
! [X0] :
( ~ sQ1_spl
| ~ greater(n54,X0)
| ~ s__age(geoff,X0) ),
inference(resolution,[status(thm)],[f32,f60]) ).
fof(f67,plain,
( sQ0_spl
| $false ),
inference(forward_subsumption_resolution,[status(thm)],[f42,f23]) ).
fof(f68,plain,
sQ0_spl,
inference(contradiction_clause,[status(thm)],[f67]) ).
fof(f69,plain,
( ~ sQ1_spl
| ~ s__age(geoff,n48) ),
inference(resolution,[status(thm)],[f61,f33]) ).
fof(f70,plain,
( ~ sQ1_spl
| $false ),
inference(forward_subsumption_resolution,[status(thm)],[f69,f31]) ).
fof(f71,plain,
~ sQ1_spl,
inference(contradiction_clause,[status(thm)],[f70]) ).
fof(f72,plain,
( ~ sQ2_spl
| $false ),
inference(forward_subsumption_resolution,[status(thm)],[f47,f36]) ).
fof(f73,plain,
~ sQ2_spl,
inference(contradiction_clause,[status(thm)],[f72]) ).
fof(f77,plain,
( ~ sQ3_spl
| s__has_seen_more(geoff,jim) ),
inference(forward_demodulation,[status(thm)],[f34,f50]) ).
fof(f78,plain,
( ~ sQ3_spl
| $false ),
inference(forward_subsumption_resolution,[status(thm)],[f77,f35]) ).
fof(f79,plain,
~ sQ3_spl,
inference(contradiction_clause,[status(thm)],[f78]) ).
fof(f80,plain,
$false,
inference(sat_refutation,[status(thm)],[f52,f68,f71,f73,f79]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : CSR147+1 : TPTP v9.3.1. Released v4.1.0.
% 0.00/0.04 % Command : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.08/0.35 % Computer : n018.cluster.edu
% 0.08/0.35 % Model : x86_64 x86_64
% 0.08/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.35 % Memory : 8046.5625MB
% 0.08/0.35 % OS : Linux 6.8.0-71-generic
% 0.08/0.35 % CPULimit : 300
% 0.08/0.35 % WCLimit : 300
% 0.08/0.35 % DateTime : Mon Sep 21 15:15:00 UTC 2026
% 0.14/0.36 % CPUTime :
% 0.14/0.37 % Drodi V4.1.1
% 0.14/0.38 % Refutation found
% 0.14/0.38 % SZS status Theorem for theBenchmark: Theorem is valid
% 0.14/0.38 % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.14/0.41 % Elapsed time: 0.046678 seconds
% 0.14/0.41 % CPU time: 0.137973 seconds
% 0.14/0.41 % Total memory used: 85.484 MB
% 0.14/0.41 % Net memory used: 85.161 MB
%------------------------------------------------------------------------------