%------------------------------------------------------------------------------
% File : Prover9---2026-6A
% Problem : COL014-1 : TPTP v9.3.1. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : prover9 -casc 300 -f /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n009.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 : Sun Sep 27 06:57:24 AM UTC 2026
% Result : Unsatisfiable 0.16s 0.43s
% Output : CNFRefutation 0.16s
% Verified :
% SZS Type : Refutation
% Derivation depth : 3
% Number of leaves : 2
% Syntax : Number of formulae : 7 ( 7 unt; 0 def)
% Number of atoms : 7 ( 6 equ)
% Maximal formula atoms : 1 ( 1 avg)
% Number of connectives : 3 ( 3 ~; 0 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 3 ( 2 avg)
% Maximal term depth : 3 ( 2 avg)
% Number of predicates : 2 ( 0 usr; 1 prp; 0-2 aty)
% Number of functors : 3 ( 3 usr; 2 con; 0-2 aty)
% Number of variables : 9 ( 0 sgn 3 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(l_definition,axiom,
! [VAR_0,VAR_1] : apply(apply(l,VAR_0),VAR_1) = apply(VAR_0,apply(VAR_1,VAR_1)),
file('theBenchmark.p',l_definition) ).
cnf(c_1,plain,
apply(apply(l,A),B) = apply(A,apply(B,B)),
inference(clausify,[status(thm)],[l_definition]) ).
fof(prove_fixed_point,axiom,
! [VAR_0] : VAR_0 != apply(combinator,VAR_0),
file('theBenchmark.p',prove_fixed_point) ).
cnf(c_3,plain,
A != apply(combinator,A),
inference(clausify,[status(thm)],[prove_fixed_point]) ).
cnf(c_4,plain,
apply(combinator,A) != A,
inference(copy,[status(thm)],[c_3]) ).
cnf(c_6,plain,
apply(A,apply(B,B)) = apply(apply(l,A),B),
inference(copy,[status(thm)],[c_1]) ).
cnf(c_5,plain,
$false,
inference(resolve,[status(thm)],[c_4,c_6]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.04 % Problem : COL014-1 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.06 % Command : prover9 -casc 300 -f /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.16/0.41 % Computer : n009.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
% 0.16/0.42 % CPULimit : 300
% 0.16/0.42 % WCLimit : 300
% 0.16/0.42 % DateTime : Sat Sep 26 23:05:44 UTC 2026
% 0.16/0.42 % CPUTime :
% 0.16/0.42 % Prover9 (64) version 2026-6A, July 2026, CASC-J13.
% 0.16/0.42 % Process 1370337 was started by sandbox on n009,
% 0.16/0.42 % Sat Sep 26 23:05:44 2026
% 0.16/0.42 % The command was "/export/starexec/sandbox/solver/bin/prover9 -casc 300 -f /export/starexec/sandbox/benchmark/theBenchmark.p".
% 0.16/0.43
% 0.16/0.43 % From the command line: assign(max_seconds, 300).
% 0.16/0.43
% 0.16/0.43 % SZS status Unsatisfiable for theBenchmark
% 0.16/0.43
% 0.16/0.43 % Proof 1 at 0.00 (+ 0.00) seconds.
% 0.16/0.43 % Length of proof is 4.
% 0.16/0.43 % Level of proof is 2.
% 0.16/0.43 % Maximum clause weight is 26.000.
% 0.16/0.43 % Given clauses 0.
% 0.16/0.43
% 0.16/0.43 % SZS output start CNFRefutation for theBenchmark
% See solution above
%------------------------------------------------------------------------------