%------------------------------------------------------------------------------
% File : Prover9---2026-6A
% Problem : LCL271-3 : TPTP v9.3.1. Released v2.3.0.
% Transfm : none
% Format : tptp:raw
% Command : prover9 -casc 300 -f /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 : Sun Sep 27 07:58:31 AM UTC 2026
% Result : Unsatisfiable 51.76s 7.00s
% Output : CNFRefutation 51.76s
% Verified :
% SZS Type : Refutation
% Derivation depth : 15
% Number of leaves : 11
% Syntax : Number of formulae : 71 ( 51 unt; 0 def)
% Number of atoms : 94 ( 6 equ)
% Maximal formula atoms : 3 ( 1 avg)
% Number of connectives : 55 ( 32 ~; 23 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 6 ( 2 avg)
% Maximal term depth : 10 ( 2 avg)
% Number of predicates : 4 ( 2 usr; 1 prp; 0-2 aty)
% Number of functors : 6 ( 6 usr; 1 con; 0-2 aty)
% Number of variables : 134 ( 12 sgn 20 !; 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(implies(implies(VAR_0,VAR_1),implies(or(VAR_2,VAR_0),or(VAR_2,VAR_1)))),
file('theBenchmark.p',axiom_1_6) ).
cnf(c_2,plain,
axiom(implies(implies(A,B),implies(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(implies(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(implies(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(implies(or(VAR_0,VAR_1),or(VAR_1,VAR_0))),
file('theBenchmark.p',axiom_1_4) ).
cnf(c_4,plain,
axiom(implies(or(A,B),or(B,A))),
inference(clausify,[status(thm)],[axiom_1_4]) ).
fof(axiom_1_3,axiom,
! [VAR_0,VAR_1] : axiom(implies(VAR_0,or(VAR_1,VAR_0))),
file('theBenchmark.p',axiom_1_3) ).
cnf(c_5,plain,
axiom(implies(A,or(B,A))),
inference(clausify,[status(thm)],[axiom_1_3]) ).
fof(axiom_1_2,axiom,
! [VAR_0] : axiom(implies(or(VAR_0,VAR_0),VAR_0)),
file('theBenchmark.p',axiom_1_2) ).
cnf(c_6,plain,
axiom(implies(or(A,A),A)),
inference(clausify,[status(thm)],[axiom_1_2]) ).
cnf(c_7,plain,
theorem(implies(or(A,A),A)),
inference(resolve,[status(thm)],[c_1,c_6]) ).
cnf(c_8,plain,
theorem(implies(A,or(B,A))),
inference(resolve,[status(thm)],[c_1,c_5]) ).
cnf(c_9,plain,
theorem(implies(or(A,B),or(B,A))),
inference(resolve,[status(thm)],[c_1,c_4]) ).
cnf(c_10,plain,
theorem(implies(or(A,or(B,C)),or(B,or(A,C)))),
inference(resolve,[status(thm)],[c_1,c_3]) ).
cnf(c_11,plain,
theorem(implies(implies(A,B),implies(or(C,A),or(C,B)))),
inference(resolve,[status(thm)],[c_1,c_2]) ).
fof(prove_this,axiom,
~ theorem(equivalent(p,and(p,p))),
file('theBenchmark.p',prove_this) ).
cnf(c_12,plain,
~ theorem(equivalent(p,and(p,p))),
inference(clausify,[status(thm)],[prove_this]) ).
fof(equivalent_defn,axiom,
! [VAR_0,VAR_1] : equivalent(VAR_0,VAR_1) = and(implies(VAR_0,VAR_1),implies(VAR_1,VAR_0)),
file('theBenchmark.p',equivalent_defn) ).
cnf(c_13,plain,
equivalent(A,B) = and(implies(A,B),implies(B,A)),
inference(clausify,[status(thm)],[equivalent_defn]) ).
fof(and_defn,axiom,
! [VAR_0,VAR_1] : and(VAR_0,VAR_1) = not(or(not(VAR_0),not(VAR_1))),
file('theBenchmark.p',and_defn) ).
cnf(c_14,plain,
and(A,B) = not(or(not(A),not(B))),
inference(clausify,[status(thm)],[and_defn]) ).
fof(rule_2,axiom,
! [VAR_0,VAR_1] :
( ~ theorem(VAR_1)
| ~ theorem(implies(VAR_1,VAR_0))
| theorem(VAR_0) ),
file('theBenchmark.p',rule_2) ).
cnf(c_15,plain,
( ~ theorem(B)
| ~ theorem(implies(B,A))
| theorem(A) ),
inference(clausify,[status(thm)],[rule_2]) ).
fof(implies_definition,axiom,
! [VAR_0,VAR_1] : implies(VAR_0,VAR_1) = or(not(VAR_0),VAR_1),
file('theBenchmark.p',implies_definition) ).
cnf(c_16,plain,
implies(A,B) = or(not(A),B),
inference(clausify,[status(thm)],[implies_definition]) ).
cnf(c_17644,plain,
~ theorem(equivalent(p,not(or(not(p),not(p))))),
inference(paramod,[status(thm)],[c_14,c_12]) ).
cnf(c_17645,plain,
~ theorem(and(implies(p,not(or(not(p),not(p)))),implies(not(or(not(p),not(p))),p))),
inference(paramod,[status(thm)],[c_13,c_17644]) ).
cnf(c_17646,plain,
~ theorem(and(or(not(p),not(or(not(p),not(p)))),implies(not(or(not(p),not(p))),p))),
inference(paramod,[status(thm)],[c_16,c_17645]) ).
cnf(c_17647,plain,
~ theorem(and(or(not(p),not(or(not(p),not(p)))),or(not(not(or(not(p),not(p)))),p))),
inference(paramod,[status(thm)],[c_16,c_17646]) ).
cnf(c_17,plain,
~ theorem(not(or(not(or(not(p),not(or(not(p),not(p))))),not(or(not(not(or(not(p),not(p)))),p))))),
inference(paramod,[status(thm)],[c_14,c_17647]) ).
cnf(c_19,plain,
( ~ theorem(B)
| ~ theorem(or(not(B),A))
| theorem(A) ),
inference(paramod,[status(thm)],[c_16,c_15]) ).
cnf(c_17648,plain,
theorem(implies(or(not(A),B),implies(or(C,A),or(C,B)))),
inference(paramod,[status(thm)],[c_16,c_11]) ).
cnf(c_17649,plain,
theorem(implies(or(not(A),B),or(not(or(C,A)),or(C,B)))),
inference(paramod,[status(thm)],[c_16,c_17648]) ).
cnf(c_20,plain,
theorem(or(not(or(not(A),B)),or(not(or(C,A)),or(C,B)))),
inference(paramod,[status(thm)],[c_16,c_17649]) ).
cnf(c_21,plain,
theorem(or(not(or(A,or(B,C))),or(B,or(A,C)))),
inference(paramod,[status(thm)],[c_16,c_10]) ).
cnf(c_22,plain,
theorem(or(not(or(A,B)),or(B,A))),
inference(paramod,[status(thm)],[c_16,c_9]) ).
cnf(c_23,plain,
theorem(or(not(A),or(B,A))),
inference(paramod,[status(thm)],[c_16,c_8]) ).
cnf(c_24,plain,
theorem(or(not(or(A,A)),A)),
inference(paramod,[status(thm)],[c_16,c_7]) ).
cnf(c_17650,plain,
( ~ theorem(or(B,or(A,C)))
| theorem(or(A,or(B,C))) ),
inference(resolve,[status(thm)],[c_19,c_21]) ).
cnf(c_32,plain,
theorem(or(A,or(not(or(B,A)),B))),
inference(resolve,[status(thm)],[c_17650,c_22]) ).
cnf(c_17651,plain,
( ~ theorem(or(not(B),C))
| theorem(or(not(or(A,B)),or(A,C))) ),
inference(resolve,[status(thm)],[c_19,c_20]) ).
cnf(c_33,plain,
theorem(or(not(or(A,or(B,C))),or(A,or(C,B)))),
inference(resolve,[status(thm)],[c_17651,c_22]) ).
cnf(c_17652,plain,
( ~ theorem(or(B,or(A,C)))
| theorem(or(A,or(B,C))) ),
inference(resolve,[status(thm)],[c_19,c_21]) ).
cnf(c_39,plain,
theorem(or(A,or(not(B),B))),
inference(resolve,[status(thm)],[c_17652,c_23]) ).
cnf(c_17653,plain,
( ~ theorem(or(B,A))
| theorem(or(A,B)) ),
inference(resolve,[status(thm)],[c_19,c_22]) ).
cnf(c_46,plain,
theorem(or(A,not(or(A,A)))),
inference(resolve,[status(thm)],[c_17653,c_24]) ).
cnf(c_17654,plain,
( ~ theorem(B)
| theorem(or(not(A),A)) ),
inference(resolve,[status(thm)],[c_19,c_39]) ).
cnf(c_98,plain,
theorem(or(not(A),A)),
inference(resolve,[status(thm)],[c_17654,c_39]) ).
cnf(c_17655,plain,
( ~ theorem(or(B,A))
| theorem(or(A,B)) ),
inference(resolve,[status(thm)],[c_19,c_22]) ).
cnf(c_106,plain,
theorem(or(A,not(A))),
inference(resolve,[status(thm)],[c_17655,c_98]) ).
cnf(c_17656,plain,
( ~ theorem(B)
| theorem(or(A,B)) ),
inference(resolve,[status(thm)],[c_19,c_23]) ).
cnf(c_114,plain,
theorem(or(A,or(B,not(B)))),
inference(resolve,[status(thm)],[c_17656,c_106]) ).
cnf(c_17657,plain,
( ~ theorem(or(not(B),C))
| theorem(or(not(or(A,B)),or(A,C))) ),
inference(resolve,[status(thm)],[c_19,c_20]) ).
cnf(c_115,plain,
theorem(or(not(or(A,B)),or(A,not(not(B))))),
inference(resolve,[status(thm)],[c_17657,c_106]) ).
cnf(c_17658,plain,
( ~ theorem(A)
| ~ theorem(or(not(A),not(or(not(or(not(p),not(or(not(p),not(p))))),not(or(not(not(or(not(p),not(p)))),p)))))) ),
inference(resolve,[status(thm)],[c_19,c_17]) ).
cnf(c_210,plain,
~ theorem(or(not(or(A,not(or(A,A)))),not(or(not(or(not(p),not(or(not(p),not(p))))),not(or(not(not(or(not(p),not(p)))),p)))))),
inference(resolve,[status(thm)],[c_17658,c_46]) ).
cnf(c_17659,plain,
( ~ theorem(or(B,or(A,C)))
| theorem(or(A,or(B,C))) ),
inference(resolve,[status(thm)],[c_19,c_21]) ).
cnf(c_242,plain,
theorem(or(A,or(B,not(A)))),
inference(resolve,[status(thm)],[c_17659,c_114]) ).
cnf(c_17660,plain,
( ~ theorem(or(A,or(C,B)))
| theorem(or(A,or(B,C))) ),
inference(resolve,[status(thm)],[c_19,c_33]) ).
cnf(c_1291,plain,
theorem(or(A,or(not(A),B))),
inference(resolve,[status(thm)],[c_17660,c_242]) ).
cnf(c_17661,plain,
( ~ theorem(or(A,or(C,B)))
| theorem(or(A,or(B,C))) ),
inference(resolve,[status(thm)],[c_19,c_33]) ).
cnf(c_1293,plain,
theorem(or(A,or(B,not(or(B,A))))),
inference(resolve,[status(thm)],[c_17661,c_32]) ).
cnf(c_17662,plain,
( ~ theorem(or(A,B))
| theorem(or(A,not(not(B)))) ),
inference(resolve,[status(thm)],[c_19,c_115]) ).
cnf(c_12531,plain,
theorem(or(A,not(not(or(not(A),B))))),
inference(resolve,[status(thm)],[c_17662,c_1291]) ).
cnf(c_17663,plain,
( ~ theorem(or(B,A))
| theorem(or(A,B)) ),
inference(resolve,[status(thm)],[c_19,c_22]) ).
cnf(c_13924,plain,
theorem(or(not(not(or(not(A),B))),A)),
inference(resolve,[status(thm)],[c_17663,c_12531]) ).
cnf(c_17664,plain,
( ~ theorem(B)
| theorem(or(A,not(or(A,not(B))))) ),
inference(resolve,[status(thm)],[c_19,c_1293]) ).
cnf(c_17642,plain,
theorem(or(A,not(or(A,not(or(not(not(or(not(B),C))),B)))))),
inference(resolve,[status(thm)],[c_17664,c_13924]) ).
cnf(c_17643,plain,
$false,
inference(resolve,[status(thm)],[c_17642,c_210]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : LCL271-3 : TPTP v9.3.1. Released v2.3.0.
% 0.00/0.03 % Command : prover9 -casc 300 -f /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 : Fri Sep 25 22:12:21 UTC 2026
% 0.08/0.35 % CPUTime :
% 0.08/0.35 % Prover9 (64) version 2026-6A, July 2026, CASC-J13.
% 0.08/0.35 % Process 2966909 was started by sandbox on n018,
% 0.08/0.35 % Fri Sep 25 22:12:21 2026
% 0.08/0.35 % The command was "/export/starexec/sandbox/solver/bin/prover9 -casc 300 -f /export/starexec/sandbox/benchmark/theBenchmark.p".
% 0.08/0.35
% 0.08/0.35 % From the command line: assign(max_seconds, 300).
% 51.76/7.00
% 51.76/7.00 % SZS status Unsatisfiable for theBenchmark
% 51.76/7.00
% 51.76/7.00 % Proof 1 at 5.99 (+ 0.60) seconds.
% 51.76/7.00 % Length of proof is 39.
% 51.76/7.00 % Level of proof is 12.
% 51.76/7.00 % Maximum clause weight is 31.000.
% 51.76/7.00 % Given clauses 306.
% 51.76/7.00
% 51.76/7.00 % SZS output start CNFRefutation for theBenchmark
% See solution above
%------------------------------------------------------------------------------