%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : LCL678+1.001 : TPTP v9.3.1. Released v4.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% Computer : n001.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 11:55:48 AM UTC 2026
% Result : Theorem 2.46s 1.22s
% Output : Refutation 2.46s
% Verified :
% SZS Type : Refutation
% Derivation depth : 11
% Number of leaves : 2
% Syntax : Number of formulae : 16 ( 4 unt; 0 def)
% Number of atoms : 65 ( 0 equ)
% Maximal formula atoms : 8 ( 4 avg)
% Number of connectives : 112 ( 63 ~; 43 |; 6 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 16 ( 8 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 3 ( 2 usr; 1 prp; 0-2 aty)
% Number of functors : 3 ( 3 usr; 1 con; 0-1 aty)
% Number of variables : 42 ( 34 !; 8 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [X0] : r1(X0,X0),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',reflexivity) ).
fof(f3,conjecture,
~ ? [X0] :
~ ( $false
| ~ ! [X1] :
( ~ r1(X0,X1)
| $false
| ~ ! [X0] :
( ~ r1(X1,X0)
| ! [X1] :
( ~ r1(X0,X1)
| p1(X1) )
| ~ ! [X1] :
( ~ r1(X0,X1)
| p1(X1) ) ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',main) ).
fof(f4,negated_conjecture,
~ ~ ? [X0] :
~ ( $false
| ~ ! [X1] :
( ~ r1(X0,X1)
| $false
| ~ ! [X0] :
( ~ r1(X1,X0)
| ! [X1] :
( ~ r1(X0,X1)
| p1(X1) )
| ~ ! [X1] :
( ~ r1(X0,X1)
| p1(X1) ) ) ) ),
inference(negated_conjecture,[status(cth)],[f3]) ).
fof(f5,plain,
~ ~ ? [X0] :
~ ( $false
| ~ ! [X1] :
( ~ r1(X0,X1)
| $false
| ~ ! [X2] :
( ~ r1(X1,X2)
| ! [X3] :
( ~ r1(X2,X3)
| p1(X3) )
| ~ ! [X4] :
( ~ r1(X2,X4)
| p1(X4) ) ) ) ),
inference(rectify,[],[f4]) ).
fof(f6,plain,
~ ~ ? [X0] :
~ ~ ! [X1] :
( ~ r1(X0,X1)
| ~ ! [X2] :
( ~ r1(X1,X2)
| ! [X3] :
( ~ r1(X2,X3)
| p1(X3) )
| ~ ! [X4] :
( ~ r1(X2,X4)
| p1(X4) ) ) ),
inference(true_and_false_elimination,[],[f5]) ).
fof(f7,plain,
? [X0] :
! [X1] :
( ~ r1(X0,X1)
| ~ ! [X2] :
( ~ r1(X1,X2)
| ! [X3] :
( ~ r1(X2,X3)
| p1(X3) )
| ~ ! [X4] :
( ~ r1(X2,X4)
| p1(X4) ) ) ),
inference(flattening,[],[f6]) ).
fof(f10,plain,
? [X0] :
! [X1] :
( ~ r1(X0,X1)
| ? [X2] :
( r1(X1,X2)
& ? [X3] :
( r1(X2,X3)
& ~ p1(X3) )
& ! [X4] :
( ~ r1(X2,X4)
| p1(X4) ) ) ),
inference(ennf_transformation,[],[f7]) ).
fof(f11,plain,
! [X1] :
( ~ r1(sK0,X1)
| ( r1(X1,sK1(X1))
& r1(sK1(X1),sK2(X1))
& ~ p1(sK2(X1))
& ! [X4] :
( ~ r1(sK1(X1),X4)
| p1(X4) ) ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0,sK1,sK2]),skolemize(X0,sK0),skolemize(X2,sK1(X1)),skolemize(X3,sK2(X1))],[f10]) ).
fof(f12,plain,
! [X0] : r1(X0,X0),
inference(cnf_transformation,[],[f1]) ).
fof(f14,plain,
! [X1,X4] :
( p1(X4)
| ~ r1(sK1(X1),X4)
| ~ r1(sK0,X1) ),
inference(cnf_transformation,[],[f11]) ).
fof(f15,plain,
! [X1] :
( ~ p1(sK2(X1))
| ~ r1(sK0,X1) ),
inference(cnf_transformation,[],[f11]) ).
fof(f16,plain,
! [X1] :
( r1(sK1(X1),sK2(X1))
| ~ r1(sK0,X1) ),
inference(cnf_transformation,[],[f11]) ).
fof(f18,plain,
! [X0,X1] :
( ~ r1(sK1(X0),sK2(X1))
| ~ r1(sK0,X0)
| ~ r1(sK0,X1) ),
inference(resolution,[],[f14,f15]) ).
fof(f19,plain,
! [X0] :
( ~ r1(sK0,X0)
| ~ r1(sK0,X0)
| ~ r1(sK0,X0) ),
inference(resolution,[],[f18,f16]) ).
fof(f20,plain,
! [X0] : ~ r1(sK0,X0),
inference(duplicate_literal_removal,[],[f19]) ).
fof(f22,plain,
$false,
inference(resolution,[],[f20,f12]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : LCL678+1.001 : TPTP v9.3.1. Released v4.0.0.
% 0.00/0.05 % Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.09/0.37 % Computer : n001.cluster.edu
% 0.09/0.37 % Model : x86_64 x86_64
% 0.09/0.37 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.37 % Memory : 8046.5625MB
% 0.09/0.37 % OS : Linux 6.8.0-71-generic
% 0.09/0.37 % CPULimit : 300
% 0.09/0.37 % WCLimit : 300
% 0.09/0.37 % DateTime : Sun Sep 27 16:39:31 UTC 2026
% 0.09/0.38 % CPUTime :
% 0.09/0.38 Running run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.09/0.41 Running first-order theorem proving
% 0.09/0.41 Running: /export/starexec/sandbox2/solver/bin/vampire --input_syntax tptp --output_axiom_names on --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 2.46/1.22 % (3769697)Detected formulas, will run a generic FOF schedule.
% 2.46/1.22 % (3769708)dis-21_1_sil=8000:lcm=predicate:random_seed=2171460762:st=5:avsq=on:i=129:avsqr=1,16:sd=3:aac=none:ep=RS:fsr=off:ss=included_2999 on theBenchmark for (2999ds/129Mi)
% 2.46/1.22 % (3769708)First to succeed.
% 2.46/1.22 % (3769708)Solution written to "/export/starexec/sandbox2/tmp/vampire-proof-3769697"
% 2.46/1.22 % (3769706)dis-1010_2:3_sil=16000:sp=reverse_frequency:random_seed=2859499879:i=119:av=off:ss=axioms_2999 on theBenchmark for (2999ds/119Mi)
% 2.46/1.22 % (3769702)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=2493788259:i=141193_2999 on theBenchmark for (2999ds/141193Mi)
% 2.46/1.22 % (3769704)lrs+1010_1_anc=all:sfv=off:to=kbo:ncem=casc2026/models/loop7.pt:sil=128000:npcc=on:prc=on:sos=all:bsr=unit_only:sac=on:random_seed=2306381876:i=141695:sd=1:nm=32:gsp=on:ss=included_2999 on theBenchmark for (2999ds/141695Mi)
% 2.46/1.22 % (3769705)lrs+1010_1_to=lpo:sil=32000:sos=on:spb=goal_then_units:bce=on:random_seed=1584537753:i=109:sd=1:ins=1:gsp=on:ss=axioms_2999 on theBenchmark for (2999ds/109Mi)
% 2.46/1.22 % (3769703)lrs+11_1_ncem=casc2026/models/loop8.pt:sil=128000:npcc=on:lma=off:spb=units:urr=ec_only:bce=on:s2agt=64:updr=off:random_seed=2500204399:i=134677:sd=20:aac=none:nm=16:ss=included:sgt=10_2999 on theBenchmark for (2999ds/134677Mi)
% 2.46/1.22 % (3769707)dis-1011_1_sil=16000:fde=unused:s2agt=70:random_seed=4001979426:s2a=on:i=139:gtg=position_2999 on theBenchmark for (2999ds/139Mi)
% 2.46/1.22 % (3769706)Also succeeded, but the first one will report.
% 2.46/1.22 % (3769705)Also succeeded, but the first one will report.
% 2.46/1.22 % (3769707)Also succeeded, but the first one will report.
% 2.46/1.22 % (3769708)Refutation found. Thanks to Tanya!
% 2.46/1.22 % SZS status Theorem for theBenchmark
% 2.46/1.22 % SZS output start Proof for theBenchmark
% See solution above
% 2.46/1.23 % (3769708)------------------------------
% 2.46/1.23 % (3769708)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 2.46/1.23 % (3769708)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 2.46/1.23 % (3769708)CaDiCaL version: 2.1.3
% 2.46/1.23 % (3769708)Termination reason: Refutation
% 2.46/1.23 % (3769708)Time elapsed: 0.001 s
% 2.46/1.23 % (3769708)Peak memory usage: 88 MB
% 2.46/1.23 % (3769708)------------------------------
% 2.46/1.23 % (3769708)------------------------------
% 2.46/1.23 % (3769697)Success in time 0.277 s
% 2.46/1.23 % Vampire exiting
%------------------------------------------------------------------------------