%------------------------------------------------------------------------------
% File : Drodi---4.1.1
% Problem : KRS235+1 : TPTP v9.3.1. Bugfixed v5.4.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n010.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 12:59:57 PM UTC 2026
% Result : Theorem 0.05s 0.59s
% Output : CNFRefutation 0.05s
% Verified :
% SZS Type : Refutation
% Derivation depth : 11
% Number of leaves : 7
% Syntax : Number of formulae : 42 ( 5 unt; 2 def)
% Number of atoms : 140 ( 0 equ)
% Maximal formula atoms : 10 ( 3 avg)
% Number of connectives : 160 ( 62 ~; 59 |; 29 &)
% ( 7 <=>; 2 =>; 0 <=; 1 <~>)
% Maximal formula depth : 9 ( 5 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 6 ( 5 usr; 3 prp; 0-3 aty)
% Number of functors : 8 ( 8 usr; 2 con; 0-2 aty)
% Number of variables : 100 ( 88 !; 12 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f5,axiom,
! [Ax,C] :
( ! [I1] :
( model(I1,Ax)
=> model(I1,C) )
<=> status(Ax,C,thm) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f19,axiom,
! [Ax,C] :
( ( ? [I2] :
( model(I2,not(C))
& model(I2,Ax) )
& ? [I1] :
( model(I1,C)
& model(I1,Ax) ) )
<=> status(Ax,C,noc) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f23,axiom,
! [S1,S2] :
( ! [Ax,C] :
( status(Ax,C,S1)
=> ~ status(Ax,C,S2) )
<=> nevera(S1,S2) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f25,axiom,
! [I,F] :
( model(I,F)
<~> model(I,not(F)) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f33,conjecture,
nevera(noc,thm),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f34,negated_conjecture,
~ nevera(noc,thm),
inference(negated_conjecture,[status(cth)],[f33]) ).
fof(f62,plain,
! [Ax,C] :
( ! [I1] :
( model(I1,C)
| ~ model(I1,Ax) )
<=> status(Ax,C,thm) ),
inference(pre_NNF_transformation,[status(thm)],[f5]) ).
fof(f63,plain,
! [Ax,C] :
( ( ~ status(Ax,C,thm)
| ! [I1] :
( model(I1,C)
| ~ model(I1,Ax) ) )
& ( status(Ax,C,thm)
| ? [I1] :
( ~ model(I1,C)
& model(I1,Ax) ) ) ),
inference(NNF_transformation,[status(thm)],[f62]) ).
fof(f64,plain,
( ! [Ax,C] :
( ~ status(Ax,C,thm)
| ! [I1] :
( model(I1,C)
| ~ model(I1,Ax) ) )
& ! [Ax,C] :
( status(Ax,C,thm)
| ? [I1] :
( ~ model(I1,C)
& model(I1,Ax) ) ) ),
inference(miniscoping,[status(thm)],[f63]) ).
fof(f65,plain,
( ! [Ax,C] :
( ~ status(Ax,C,thm)
| ! [I1] :
( model(I1,C)
| ~ model(I1,Ax) ) )
& ! [Ax,C] :
( status(Ax,C,thm)
| ( ~ model(sK9_skl(C,Ax),C)
& model(sK9_skl(C,Ax),Ax) ) ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK9_skl]),skolemize(I1,sK9_skl(C,Ax))],[f64]) ).
fof(f68,plain,
! [X0,X1,X2] :
( ~ status(X1,X2,thm)
| model(X0,X2)
| ~ model(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f65]) ).
fof(f166,plain,
! [Ax,C] :
( ( ~ status(Ax,C,noc)
| ( ? [I2] :
( model(I2,not(C))
& model(I2,Ax) )
& ? [I1] :
( model(I1,C)
& model(I1,Ax) ) ) )
& ( status(Ax,C,noc)
| ! [I2] :
( ~ model(I2,not(C))
| ~ model(I2,Ax) )
| ! [I1] :
( ~ model(I1,C)
| ~ model(I1,Ax) ) ) ),
inference(NNF_transformation,[status(thm)],[f19]) ).
fof(f167,plain,
( ! [Ax,C] :
( ~ status(Ax,C,noc)
| ( ? [I2] :
( model(I2,not(C))
& model(I2,Ax) )
& ? [I1] :
( model(I1,C)
& model(I1,Ax) ) ) )
& ! [Ax,C] :
( status(Ax,C,noc)
| ! [I2] :
( ~ model(I2,not(C))
| ~ model(I2,Ax) )
| ! [I1] :
( ~ model(I1,C)
| ~ model(I1,Ax) ) ) ),
inference(miniscoping,[status(thm)],[f166]) ).
fof(f168,plain,
( ! [Ax,C] :
( ~ status(Ax,C,noc)
| ( model(sK41_skl(C,Ax),not(C))
& model(sK41_skl(C,Ax),Ax)
& model(sK40_skl(C,Ax),C)
& model(sK40_skl(C,Ax),Ax) ) )
& ! [Ax,C] :
( status(Ax,C,noc)
| ! [I2] :
( ~ model(I2,not(C))
| ~ model(I2,Ax) )
| ! [I1] :
( ~ model(I1,C)
| ~ model(I1,Ax) ) ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK40_skl,sK41_skl]),skolemize(I1,sK40_skl(C,Ax)),skolemize(I2,sK41_skl(C,Ax))],[f167]) ).
fof(f172,plain,
! [X0,X1] :
( ~ status(X1,X0,noc)
| model(sK41_skl(X0,X1),X1) ),
inference(cnf_transformation,[status(thm)],[f168]) ).
fof(f173,plain,
! [X0,X1] :
( ~ status(X1,X0,noc)
| model(sK41_skl(X0,X1),not(X0)) ),
inference(cnf_transformation,[status(thm)],[f168]) ).
fof(f193,plain,
! [S1,S2] :
( ! [Ax,C] :
( ~ status(Ax,C,S2)
| ~ status(Ax,C,S1) )
<=> nevera(S1,S2) ),
inference(pre_NNF_transformation,[status(thm)],[f23]) ).
fof(f194,plain,
! [S1,S2] :
( ( ~ nevera(S1,S2)
| ! [Ax,C] :
( ~ status(Ax,C,S2)
| ~ status(Ax,C,S1) ) )
& ( nevera(S1,S2)
| ? [Ax,C] :
( status(Ax,C,S2)
& status(Ax,C,S1) ) ) ),
inference(NNF_transformation,[status(thm)],[f193]) ).
fof(f195,plain,
( ! [S1,S2] :
( ~ nevera(S1,S2)
| ! [Ax,C] :
( ~ status(Ax,C,S2)
| ~ status(Ax,C,S1) ) )
& ! [S1,S2] :
( nevera(S1,S2)
| ? [Ax,C] :
( status(Ax,C,S2)
& status(Ax,C,S1) ) ) ),
inference(miniscoping,[status(thm)],[f194]) ).
fof(f196,plain,
( ! [S1,S2] :
( ~ nevera(S1,S2)
| ! [Ax,C] :
( ~ status(Ax,C,S2)
| ~ status(Ax,C,S1) ) )
& ! [S1,S2] :
( nevera(S1,S2)
| ( status(sK48_skl(S2,S1),sK49_skl(S2,S1),S2)
& status(sK48_skl(S2,S1),sK49_skl(S2,S1),S1) ) ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK48_skl,sK49_skl]),skolemize(Ax,sK48_skl(S2,S1)),skolemize(C,sK49_skl(S2,S1))],[f195]) ).
fof(f197,plain,
! [X0,X1] :
( nevera(X1,X0)
| status(sK48_skl(X0,X1),sK49_skl(X0,X1),X1) ),
inference(cnf_transformation,[status(thm)],[f196]) ).
fof(f198,plain,
! [X0,X1] :
( nevera(X1,X0)
| status(sK48_skl(X0,X1),sK49_skl(X0,X1),X0) ),
inference(cnf_transformation,[status(thm)],[f196]) ).
fof(f207,plain,
! [I,F] :
( ( ~ model(I,not(F))
| ~ model(I,F) )
& ( model(I,not(F))
| model(I,F) ) ),
inference(NNF_transformation,[status(thm)],[f25]) ).
fof(f208,plain,
( ! [I,F] :
( ~ model(I,not(F))
| ~ model(I,F) )
& ! [I,F] :
( model(I,not(F))
| model(I,F) ) ),
inference(miniscoping,[status(thm)],[f207]) ).
fof(f210,plain,
! [X0,X1] :
( ~ model(X0,not(X1))
| ~ model(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f208]) ).
fof(f240,plain,
~ nevera(noc,thm),
inference(cnf_transformation,[status(thm)],[f34]) ).
fof(f250,plain,
! [X0,X1] :
( model(X1,sK49_skl(thm,X0))
| ~ model(X1,sK48_skl(thm,X0))
| nevera(X0,thm) ),
inference(resolution,[status(thm)],[f198,f68]) ).
fof(f429,plain,
! [X0,X1] :
( ~ status(X1,X0,noc)
| ~ model(sK41_skl(X0,X1),X0) ),
inference(resolution,[status(thm)],[f210,f173]) ).
fof(f660,plain,
! [X0] :
( model(X0,sK49_skl(thm,noc))
| ~ model(X0,sK48_skl(thm,noc)) ),
inference(resolution,[status(thm)],[f250,f240]) ).
fof(f687,plain,
! [X0] :
( ~ status(sK48_skl(thm,noc),X0,noc)
| model(sK41_skl(X0,sK48_skl(thm,noc)),sK49_skl(thm,noc)) ),
inference(resolution,[status(thm)],[f660,f172]) ).
fof(f736,plain,
( nevera(noc,thm)
| model(sK41_skl(sK49_skl(thm,noc),sK48_skl(thm,noc)),sK49_skl(thm,noc)) ),
inference(resolution,[status(thm)],[f687,f197]) ).
fof(f737,definition,
( sQ27_spl
<=> model(sK41_skl(sK49_skl(thm,noc),sK48_skl(thm,noc)),sK49_skl(thm,noc)) ),
introduced(definition,[new_symbols(definition,[sQ27_spl])],[split_symbol_definition]) ).
fof(f738,plain,
( ~ sQ27_spl
| model(sK41_skl(sK49_skl(thm,noc),sK48_skl(thm,noc)),sK49_skl(thm,noc)) ),
inference(component_clause,[status(thm)],[f737]) ).
fof(f740,definition,
( sQ28_spl
<=> nevera(noc,thm) ),
introduced(definition,[new_symbols(definition,[sQ28_spl])],[split_symbol_definition]) ).
fof(f741,plain,
( ~ sQ28_spl
| nevera(noc,thm) ),
inference(component_clause,[status(thm)],[f740]) ).
fof(f743,plain,
( sQ28_spl
| sQ27_spl ),
inference(split_clause,[status(thm)],[f736,f737,f740]) ).
fof(f744,plain,
( ~ sQ28_spl
| $false ),
inference(forward_subsumption_resolution,[status(thm)],[f741,f240]) ).
fof(f745,plain,
~ sQ28_spl,
inference(contradiction_clause,[status(thm)],[f744]) ).
fof(f746,plain,
( ~ sQ27_spl
| ~ status(sK48_skl(thm,noc),sK49_skl(thm,noc),noc) ),
inference(resolution,[status(thm)],[f738,f429]) ).
fof(f803,plain,
( ~ sQ27_spl
| nevera(noc,thm) ),
inference(resolution,[status(thm)],[f746,f197]) ).
fof(f804,plain,
( ~ sQ27_spl
| sQ28_spl ),
inference(split_clause,[status(thm)],[f803,f740,f737]) ).
fof(f805,plain,
$false,
inference(sat_refutation,[status(thm)],[f743,f745,f804]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.05 % Problem : KRS235+1 : TPTP v9.3.1. Bugfixed v5.4.0.
% 0.00/0.06 % Command : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.16/0.41 % Computer : n010.cluster.edu
% 0.16/0.41 % Model : x86_64 x86_64
% 0.16/0.41 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.16/0.41 % Memory : 8046.5625MB
% 0.16/0.41 % OS : Linux 6.8.0-71-generic
% 0.05/0.41 % CPULimit : 300
% 0.05/0.41 % WCLimit : 300
% 0.05/0.41 % DateTime : Sun Sep 20 22:57:40 UTC 2026
% 0.05/0.41 % CPUTime :
% 0.05/0.43 % Drodi V4.1.1
% 0.05/0.59 % Refutation found
% 0.05/0.59 % SZS status Theorem for theBenchmark: Theorem is valid
% 0.05/0.59 % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.05/0.63 % Elapsed time: 0.197380 seconds
% 0.05/0.63 % CPU time: 1.221730 seconds
% 0.05/0.63 % Total memory used: 30.884 MB
% 0.05/0.63 % Net memory used: 28.980 MB
%------------------------------------------------------------------------------