%------------------------------------------------------------------------------
% File : Prover9---2026-6A
% Problem : LCL231-1 : TPTP v9.3.1. Released v1.1.0.
% Transfm : none
% Format : tptp:raw
% Command : prover9 -casc 300 -f /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n017.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 07:58:25 AM UTC 2026
% Result : Unsatisfiable 2.93s 0.80s
% Output : CNFRefutation 2.93s
% Verified :
% SZS Type : Refutation
% Derivation depth : 7
% Number of leaves : 8
% Syntax : Number of formulae : 29 ( 18 unt; 0 def)
% Number of atoms : 44 ( 0 equ)
% Maximal formula atoms : 3 ( 1 avg)
% Number of connectives : 34 ( 19 ~; 15 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 7 ( 3 avg)
% Maximal term depth : 8 ( 2 avg)
% Number of predicates : 3 ( 2 usr; 1 prp; 0-1 aty)
% Number of functors : 5 ( 5 usr; 3 con; 0-2 aty)
% Number of variables : 61 ( 5 sgn 16 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(rule_1,axiom,
! [VAR_0] :
( ~ axiom(VAR_0)
| theorem(VAR_0) ),
file('theBenchmark.p',rule_1) ).
cnf(c_1,plain,
( ~ axiom(A)
| theorem(A) ),
inference(clausify,[status(thm)],[rule_1]) ).
fof(axiom_1_6,axiom,
! [VAR_0,VAR_1,VAR_2] : axiom(or(not(or(not(VAR_0),VAR_1)),or(not(or(VAR_2,VAR_0)),or(VAR_2,VAR_1)))),
file('theBenchmark.p',axiom_1_6) ).
cnf(c_2,plain,
axiom(or(not(or(not(A),B)),or(not(or(C,A)),or(C,B)))),
inference(clausify,[status(thm)],[axiom_1_6]) ).
fof(axiom_1_5,axiom,
! [VAR_0,VAR_1,VAR_2] : axiom(or(not(or(VAR_0,or(VAR_1,VAR_2))),or(VAR_1,or(VAR_0,VAR_2)))),
file('theBenchmark.p',axiom_1_5) ).
cnf(c_3,plain,
axiom(or(not(or(A,or(B,C))),or(B,or(A,C)))),
inference(clausify,[status(thm)],[axiom_1_5]) ).
fof(axiom_1_4,axiom,
! [VAR_0,VAR_1] : axiom(or(not(or(VAR_0,VAR_1)),or(VAR_1,VAR_0))),
file('theBenchmark.p',axiom_1_4) ).
cnf(c_4,plain,
axiom(or(not(or(A,B)),or(B,A))),
inference(clausify,[status(thm)],[axiom_1_4]) ).
fof(axiom_1_3,axiom,
! [VAR_0,VAR_1] : axiom(or(not(VAR_0),or(VAR_1,VAR_0))),
file('theBenchmark.p',axiom_1_3) ).
cnf(c_5,plain,
axiom(or(not(A),or(B,A))),
inference(clausify,[status(thm)],[axiom_1_3]) ).
fof(rule_2,axiom,
! [VAR_0,VAR_1] :
( ~ theorem(VAR_1)
| ~ axiom(or(not(VAR_1),VAR_0))
| theorem(VAR_0) ),
file('theBenchmark.p',rule_2) ).
cnf(c_7,plain,
( ~ theorem(B)
| ~ axiom(or(not(B),A))
| theorem(A) ),
inference(clausify,[status(thm)],[rule_2]) ).
fof(rule_3,axiom,
! [VAR_0,VAR_1,VAR_2] :
( ~ theorem(or(not(VAR_2),VAR_1))
| ~ axiom(or(not(VAR_0),VAR_2))
| theorem(or(not(VAR_0),VAR_1)) ),
file('theBenchmark.p',rule_3) ).
cnf(c_8,plain,
( ~ theorem(or(not(C),B))
| ~ axiom(or(not(A),C))
| theorem(or(not(A),B)) ),
inference(clausify,[status(thm)],[rule_3]) ).
cnf(c_10,plain,
( ~ theorem(or(not(or(C,A)),B))
| theorem(or(not(A),B)) ),
inference(resolve,[status(thm)],[c_8,c_5]) ).
cnf(c_11,plain,
( ~ theorem(or(not(or(B,A)),C))
| theorem(or(not(or(A,B)),C)) ),
inference(resolve,[status(thm)],[c_8,c_4]) ).
cnf(c_12,plain,
( ~ theorem(or(not(or(B,or(A,C))),D))
| theorem(or(not(or(A,or(B,C))),D)) ),
inference(resolve,[status(thm)],[c_8,c_3]) ).
cnf(c_17,plain,
( ~ theorem(or(B,or(A,C)))
| theorem(or(A,or(B,C))) ),
inference(resolve,[status(thm)],[c_7,c_3]) ).
cnf(c_18,plain,
( ~ theorem(or(not(B),C))
| theorem(or(not(or(A,B)),or(A,C))) ),
inference(resolve,[status(thm)],[c_7,c_2]) ).
cnf(c_21,plain,
theorem(or(not(or(A,B)),or(B,A))),
inference(resolve,[status(thm)],[c_1,c_4]) ).
fof(prove_this,axiom,
~ theorem(or(not(or(not(or(not(p),q)),or(not(p),r))),or(not(p),or(not(q),r)))),
file('theBenchmark.p',prove_this) ).
cnf(c_24,plain,
~ theorem(or(not(or(not(or(not(p),q)),or(not(p),r))),or(not(p),or(not(q),r)))),
inference(clausify,[status(thm)],[prove_this]) ).
cnf(c_42,plain,
theorem(or(A,or(not(or(B,A)),B))),
inference(resolve,[status(thm)],[c_17,c_21]) ).
cnf(c_68,plain,
~ theorem(or(not(or(not(p),or(not(or(not(p),q)),r))),or(not(p),or(not(q),r)))),
inference(resolve,[status(thm)],[c_24,c_12]) ).
cnf(c_287,plain,
theorem(or(not(A),or(not(or(B,not(or(C,A)))),B))),
inference(resolve,[status(thm)],[c_10,c_42]) ).
cnf(c_634,plain,
~ theorem(or(not(or(not(or(not(p),q)),r)),or(not(q),r))),
inference(resolve,[status(thm)],[c_68,c_18]) ).
cnf(c_2441,plain,
theorem(or(not(or(A,not(or(B,C)))),or(not(C),A))),
inference(resolve,[status(thm)],[c_17,c_287]) ).
cnf(c_2587,plain,
theorem(or(not(or(not(or(A,B)),C)),or(not(B),C))),
inference(resolve,[status(thm)],[c_11,c_2441]) ).
cnf(c_2588,plain,
$false,
inference(resolve,[status(thm)],[c_2587,c_634]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : LCL231-1 : TPTP v9.3.1. Released v1.1.0.
% 0.00/0.04 % Command : prover9 -casc 300 -f /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.10/0.36 % Computer : n017.cluster.edu
% 0.10/0.36 % Model : x86_64 x86_64
% 0.10/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.36 % Memory : 8046.5625MB
% 0.10/0.36 % OS : Linux 6.8.0-71-generic
% 0.10/0.36 % CPULimit : 300
% 0.10/0.36 % WCLimit : 300
% 0.10/0.36 % DateTime : Fri Sep 25 22:00:03 UTC 2026
% 0.10/0.37 % CPUTime :
% 0.10/0.37 % Prover9 (64) version 2026-6A, July 2026, CASC-J13.
% 0.10/0.37 % Process 3297009 was started by sandbox on n017,
% 0.10/0.37 % Fri Sep 25 22:00:03 2026
% 0.10/0.37 % The command was "/export/starexec/sandbox/solver/bin/prover9 -casc 300 -f /export/starexec/sandbox/benchmark/theBenchmark.p".
% 0.10/0.37
% 0.10/0.37 % From the command line: assign(max_seconds, 300).
% 2.93/0.80
% 2.93/0.80 % given #500 (A,wt=60): 220 theorem(or(or(A,or(B,or(C,D))),not(or(C,or(B,D))))). [ur(16,b,37,a)].
% 2.93/0.80
% 2.93/0.80 % SZS status Unsatisfiable for theBenchmark
% 2.93/0.80
% 2.93/0.80 % Proof 1 at 0.33 (+ 0.09) seconds.
% 2.93/0.80 % Length of proof is 21.
% 2.93/0.80 % Level of proof is 6.
% 2.93/0.80 % Maximum clause weight is 75.000.
% 2.93/0.80 % Given clauses 729.
% 2.93/0.80
% 2.93/0.80 % SZS output start CNFRefutation for theBenchmark
% See solution above
%------------------------------------------------------------------------------