%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : SYN320+1 : TPTP v9.3.1. Released v2.0.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n005.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 03:19:20 PM UTC 2026
% Result : CounterSatisfiable 0.11s 0.38s
% Output : Saturation 0.11s
% Verified :
% SZS Type : ERROR: Analysing output (MakeTreeStats fails)
% Comments :
%------------------------------------------------------------------------------
fof(f1,conjecture,
? [Z,X] :
! [Y1,Y2] :
( ( ~ big_f(X,Z)
=> big_f(Z,Y1) )
=> ( big_f(Y2,Z)
=> big_f(Z,Y2) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f2,negated_conjecture,
~ ? [Z,X] :
! [Y1,Y2] :
( ( ~ big_f(X,Z)
=> big_f(Z,Y1) )
=> ( big_f(Y2,Z)
=> big_f(Z,Y2) ) ),
inference(negated_conjecture,[status(cth)],[f1]) ).
fof(f3,plain,
! [Z,X] :
? [Y1,Y2] :
( ~ big_f(Z,Y2)
& big_f(Y2,Z)
& ( big_f(Z,Y1)
| big_f(X,Z) ) ),
inference(pre_NNF_transformation,[status(thm)],[f2]) ).
fof(f4,plain,
( ! [Z] :
? [Y2] :
( ~ big_f(Z,Y2)
& big_f(Y2,Z) )
& ! [Z] :
( ? [Y1] : big_f(Z,Y1)
| ! [X] : big_f(X,Z) ) ),
inference(miniscoping,[status(thm)],[f3]) ).
fof(f5,plain,
( ! [Z] :
( ~ big_f(Z,sK1_skl(Z))
& big_f(sK1_skl(Z),Z) )
& ! [Z] :
( big_f(Z,sK0_skl(Z))
| ! [X] : big_f(X,Z) ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0_skl,sK1_skl]),skolemize(Y1,sK0_skl(Z)),skolemize(Y2,sK1_skl(Z))],[f4]) ).
fof(f6,plain,
! [X0,X1] :
( big_f(X1,sK0_skl(X1))
| big_f(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f5]) ).
fof(f7,plain,
! [X0] : big_f(sK1_skl(X0),X0),
inference(cnf_transformation,[status(thm)],[f5]) ).
fof(f8,plain,
! [X0] : ~ big_f(X0,sK1_skl(X0)),
inference(cnf_transformation,[status(thm)],[f5]) ).
fof(f9,plain,
! [X0] : big_f(sK1_skl(X0),sK0_skl(sK1_skl(X0))),
inference(resolution,[status(thm)],[f6,f8]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SYN320+1 : TPTP v9.3.1. Released v2.0.0.
% 0.00/0.04 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.11/0.36 % Computer : n005.cluster.edu
% 0.11/0.36 % Model : x86_64 x86_64
% 0.11/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.36 % Memory : 8046.5625MB
% 0.11/0.36 % OS : Linux 6.8.0-71-generic
% 0.11/0.36 % CPULimit : 300
% 0.11/0.36 % WCLimit : 300
% 0.11/0.36 % DateTime : Mon Sep 21 10:48:48 UTC 2026
% 0.11/0.37 % CPUTime :
% 0.11/0.38 % Drodi V4.1.1
% 0.11/0.38 % SZS status CounterSatisfiable for theBenchmark: Theorem is counter-satisfiable, conjecture is false
% 0.11/0.38 % SZS output start Saturation for theBenchmark
% See solution above
% 0.14/0.40 % Elapsed time: 0.027028 seconds
% 0.14/0.40 % CPU time: 0.032655 seconds
% 0.14/0.40 % Total memory used: 513.680 KB
% 0.14/0.40 % Net memory used: 499.856 KB
%------------------------------------------------------------------------------