%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : LCL237-3 : TPTP v9.3.1. Released v2.3.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% Computer : n012.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 : Tue Sep 29 11:51:42 AM UTC 2026
% Result : Unsatisfiable 2.42s 0.95s
% Output : Refutation 2.42s
% Verified :
% SZS Type : Refutation
% Derivation depth : 7
% Number of leaves : 8
% Syntax : Number of formulae : 23 ( 16 unt; 0 def)
% Number of atoms : 33 ( 2 equ)
% Maximal formula atoms : 3 ( 1 avg)
% Number of connectives : 22 ( 12 ~; 10 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 7 ( 4 avg)
% Maximal term depth : 6 ( 2 avg)
% Number of predicates : 4 ( 2 usr; 1 prp; 0-2 aty)
% Number of functors : 6 ( 6 usr; 2 con; 0-2 aty)
% Number of variables : 49 ( 49 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f3,axiom,
! [X0,X1] : axiom(implies(or(X0,X1),or(X1,X0))),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',axiom_1_4) ).
fof(f4,axiom,
! [X2,X0,X1] : axiom(implies(or(X0,or(X1,X2)),or(X1,or(X0,X2)))),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',axiom_1_5) ).
fof(f5,axiom,
! [X2,X0,X1] : axiom(implies(implies(X0,X1),implies(or(X2,X0),or(X2,X1)))),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',axiom_1_6) ).
fof(f6,axiom,
! [X0,X1] : implies(X0,X1) = or(not(X0),X1),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',implies_definition) ).
fof(f7,axiom,
! [X0] :
( ~ axiom(X0)
| theorem(X0) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',rule_1) ).
fof(f8,axiom,
! [X0,X1] :
( theorem(X0)
| ~ theorem(implies(X1,X0))
| ~ theorem(X1) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',rule_2) ).
fof(f9,axiom,
! [X0,X1] : and(X0,X1) = not(or(not(X0),not(X1))),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',and_defn) ).
fof(f10,negated_conjecture,
~ theorem(implies(q,implies(p,and(p,q)))),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_this) ).
fof(f11,plain,
~ theorem(or(not(q),or(not(p),not(or(not(p),not(q)))))),
inference(definition_unfolding,[],[f10,f6,f6,f9]) ).
fof(f12,plain,
! [X0,X1] :
( ~ theorem(or(not(X1),X0))
| theorem(X0)
| ~ theorem(X1) ),
inference(definition_unfolding,[],[f8,f6]) ).
fof(f13,plain,
! [X2,X0,X1] : axiom(or(not(or(not(X0),X1)),or(not(or(X2,X0)),or(X2,X1)))),
inference(definition_unfolding,[],[f5,f6,f6,f6]) ).
fof(f14,plain,
! [X2,X0,X1] : axiom(or(not(or(X0,or(X1,X2))),or(X1,or(X0,X2)))),
inference(definition_unfolding,[],[f4,f6]) ).
fof(f15,plain,
! [X0,X1] : axiom(or(not(or(X0,X1)),or(X1,X0))),
inference(definition_unfolding,[],[f3,f6]) ).
fof(f23,plain,
! [X0,X1] : theorem(or(not(or(X0,X1)),or(X1,X0))),
inference(resolution,[],[f15,f7]) ).
fof(f25,plain,
! [X2,X0,X1] : theorem(or(not(or(X0,or(X1,X2))),or(X1,or(X0,X2)))),
inference(resolution,[],[f14,f7]) ).
fof(f26,plain,
! [X2,X0,X1] : theorem(or(not(or(not(X0),X1)),or(not(or(X2,X0)),or(X2,X1)))),
inference(resolution,[],[f13,f7]) ).
fof(f30,plain,
! [X2,X0,X1] :
( ~ theorem(or(X1,or(X0,X2)))
| theorem(or(X0,or(X1,X2))) ),
inference(resolution,[],[f25,f12]) ).
fof(f36,plain,
! [X2,X0,X1] :
( theorem(or(not(or(X0,X1)),or(X0,X2)))
| ~ theorem(or(not(X1),X2)) ),
inference(resolution,[],[f26,f12]) ).
fof(f51,plain,
! [X0,X1] : theorem(or(X0,or(not(or(X1,X0)),X1))),
inference(resolution,[],[f30,f23]) ).
fof(f57,plain,
! [X2,X0,X1] :
( ~ theorem(or(not(X0),X1))
| theorem(or(X2,X1))
| ~ theorem(or(X2,X0)) ),
inference(resolution,[],[f36,f12]) ).
fof(f100,plain,
! [X2,X0,X1] :
( ~ theorem(or(X0,or(X2,X1)))
| theorem(or(X0,or(X1,X2))) ),
inference(resolution,[],[f57,f23]) ).
fof(f327,plain,
! [X0,X1] : theorem(or(X0,or(X1,not(or(X1,X0))))),
inference(resolution,[],[f100,f51]) ).
fof(f712,plain,
$false,
inference(resolution,[],[f327,f11]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.01 % Problem : LCL237-3 : TPTP v9.3.1. Released v2.3.0.
% 0.00/0.03 % Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.05/0.31 % Computer : n012.cluster.edu
% 0.05/0.31 % Model : x86_64 x86_64
% 0.05/0.31 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.05/0.31 % Memory : 8046.5625MB
% 0.05/0.31 % OS : Linux 6.8.0-71-generic
% 0.05/0.32 % CPULimit : 300
% 0.05/0.32 % WCLimit : 300
% 0.05/0.32 % DateTime : Sun Sep 27 15:28:20 UTC 2026
% 0.05/0.32 % CPUTime :
% 0.05/0.32 Running run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.07/0.34 Running first-order theorem proving
% 0.07/0.34 Running: /export/starexec/sandbox/solver/bin/vampire --input_syntax tptp --output_axiom_names on --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 2.42/0.95 % (2516051)Input is clausal, will run a generic CNF schedule.
% 2.42/0.95 % (2516062)dis-21_1_sil=8000:lcm=predicate:random_seed=368129722:st=5:avsq=on:i=117:avsqr=1,16:sd=3:aac=none:ep=RS:fsr=off:ss=included_2999 on theBenchmark for (2999ds/117Mi)
% 2.42/0.95 % (2516059)lrs+10_1_sil=8000:sp=occurrence:random_seed=414410499:i=107:sd=3:ss=axioms:sgt=8_2999 on theBenchmark for (2999ds/107Mi)
% 2.42/0.95 % (2516060)dis-1002_1_to=lpo:sil=16000:fd=off:random_seed=1250062862:st=1.5:i=114:aac=none:ins=7:ss=axioms:fsd=on_2999 on theBenchmark for (2999ds/114Mi)
% 2.42/0.95 % (2516057)lrs+10_1_ncem=casc2026/models/loop8.pt:sil=128000:npcc=on:urr=on:br=off:random_seed=1774506207:i=132376:av=off_2999 on theBenchmark for (2999ds/132376Mi)
% 2.42/0.95 % (2516058)lrs+1002_1_ncem=casc2026/models/loop8.pt:sil=128000:tgt=ground:npcc=on:sp=reverse_frequency:spb=intro:random_seed=717486545:i=137899:s2at=10:gtgl=3:kws=precedence:add=on:bd=preordered:gtg=position_2999 on theBenchmark for (2999ds/137899Mi)
% 2.42/0.95 % (2516061)dis-1011_1_sil=16000:fde=unused:s2agt=70:random_seed=3592194121:s2a=on:i=180:gtg=position_2999 on theBenchmark for (2999ds/180Mi)
% 2.42/0.95 % (2516056)lrs+10_1_ncem=casc2026/models/loop8.pt:sil=128000:tgt=full:npcc=on:drc=off:sp=weighted_frequency:spb=goal:fd=preordered:foolp=on:random_seed=2741745338:i=140167_2999 on theBenchmark for (2999ds/140167Mi)
% 2.42/0.95 % (2516059)First to succeed.
% 2.42/0.95 % (2516059)Solution written to "/export/starexec/sandbox/tmp/vampire-proof-2516051"
% 2.42/0.95 % (2516060)Also succeeded, but the first one will report.
% 2.42/0.95 % (2516062)Instruction limit reached!
% 2.42/0.95 % (2516062)------------------------------
% 2.42/0.95 % (2516062)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 2.42/0.95 % (2516062)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 2.42/0.95 % (2516062)CaDiCaL version: 2.1.3
% 2.42/0.95 % (2516062)Termination reason: Instruction limit
% 2.42/0.95 % (2516062)Termination phase: Saturation
% 2.42/0.95 % (2516062)Time elapsed: 0.031 s
% 2.42/0.95 % (2516062)Peak memory usage: 87 MB
% 2.42/0.95 % (2516062)Instructions burned: 120 (million)
% 2.42/0.95 % (2516061)Instruction limit reached!
% 2.42/0.95 % (2516061)------------------------------
% 2.42/0.95 % (2516061)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 2.42/0.95 % (2516061)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 2.42/0.95 % (2516061)CaDiCaL version: 2.1.3
% 2.42/0.95 % (2516061)Termination reason: Instruction limit
% 2.42/0.95 % (2516061)Termination phase: Saturation
% 2.42/0.95 % (2516061)Time elapsed: 0.062 s
% 2.42/0.95 % (2516061)Peak memory usage: 89 MB
% 2.42/0.95 % (2516061)Instructions burned: 183 (million)
% 2.42/0.95 % (2516070)dis+1010_3_sil=8000:plsq=on:drc=off:fde=none:plsqc=1:bsd=on:plsqr=7,2:sos=on:spb=goal_then_units:random_seed=270078922:i=143:sd=2:aac=none:ss=axioms:sgt=16_2998 on theBenchmark for (2998ds/143Mi)
% 2.42/0.95 % (2516070)Refutation not found, incomplete strategy
% 2.42/0.95 % (2516070)------------------------------
% 2.42/0.95 % (2516070)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 2.42/0.95 % (2516070)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 2.42/0.95 % (2516070)CaDiCaL version: 2.1.3
% 2.42/0.95 % (2516070)Termination reason: Refutation not found, incomplete strategy
% 2.42/0.95 % (2516070)Time elapsed: 0.0000 s
% 2.42/0.95 % (2516070)Peak memory usage: 88 MB
% 2.42/0.95 % (2516059)Refutation found. Thanks to Tanya!
% 2.42/0.95 % SZS status Unsatisfiable for theBenchmark
% 2.42/0.95 % SZS output start Proof for theBenchmark
% See solution above
% 2.42/0.95 % (2516059)------------------------------
% 2.42/0.95 % (2516059)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 2.42/0.95 % (2516059)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 2.42/0.95 % (2516059)CaDiCaL version: 2.1.3
% 2.42/0.95 % (2516059)Termination reason: Refutation
% 2.42/0.95 % (2516059)Time elapsed: 0.010 s
% 2.42/0.95 % (2516059)Peak memory usage: 88 MB
% 2.42/0.95 % (2516059)Instructions burned: 26 (million)
% 2.42/0.95 % (2516059)------------------------------
% 2.42/0.95 % (2516059)------------------------------
% 2.42/0.95 % (2516051)Success in time 0.315 s
% 2.42/0.95 % Vampire exiting
%------------------------------------------------------------------------------