%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : SWC147-1 : TPTP v9.3.1. Released v2.4.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 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 : Tue Sep 29 01:02:40 PM UTC 2026
% Result : Unsatisfiable 2.53s 1.33s
% Output : Refutation 2.53s
% Verified :
% SZS Type : Refutation
% Derivation depth : 2
% Number of leaves : 3
% Syntax : Number of formulae : 5 ( 5 unt; 0 def)
% Number of atoms : 5 ( 1 equ)
% Maximal formula atoms : 1 ( 1 avg)
% Number of connectives : 1 ( 1 ~; 0 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 2 ( 1 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of predicates : 3 ( 1 usr; 1 prp; 0-2 aty)
% Number of functors : 3 ( 3 usr; 3 con; 0-0 aty)
% Number of variables : 0 ( 0 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f204,negated_conjecture,
sk2 = sk4,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_5) ).
fof(f206,negated_conjecture,
neq(sk2,nil),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_7) ).
fof(f207,negated_conjecture,
~ neq(sk4,nil),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',co1_8) ).
fof(f211,plain,
neq(sk4,nil),
inference(definition_unfolding,[],[f206,f204]) ).
fof(f224,plain,
$false,
inference(forward_subsumption_resolution,[],[f211,f207]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SWC147-1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.05 % Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.11/0.38 % Computer : n017.cluster.edu
% 0.11/0.38 % Model : x86_64 x86_64
% 0.11/0.38 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.38 % Memory : 8046.5625MB
% 0.11/0.38 % OS : Linux 6.8.0-71-generic
% 0.11/0.38 % CPULimit : 300
% 0.11/0.38 % WCLimit : 300
% 0.11/0.38 % DateTime : Mon Sep 28 08:05:06 UTC 2026
% 0.11/0.38 % CPUTime :
% 0.11/0.38 Running run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.11/0.42 Running first-order theorem proving
% 0.11/0.42 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
% 2.53/1.33 % (3388426)Input is clausal, will run a generic CNF schedule.
% 2.53/1.33 % (3388435)dis-1002_1_to=lpo:sil=16000:fd=off:random_seed=1992338671:st=1.5:i=114:aac=none:ins=7:ss=axioms:fsd=on_2999 on theBenchmark for (2999ds/114Mi)
% 2.53/1.33 % (3388435)First to succeed.
% 2.53/1.33 % (3388435)Solution written to "/export/starexec/sandbox2/tmp/vampire-proof-3388426"
% 2.53/1.33 % (3388432)lrs+10_1_ncem=casc2026/models/loop8.pt:sil=128000:npcc=on:urr=on:br=off:random_seed=1808213289:i=132376:av=off_2999 on theBenchmark for (2999ds/132376Mi)
% 2.53/1.33 % (3388433)lrs+1002_1_ncem=casc2026/models/loop8.pt:sil=128000:tgt=ground:npcc=on:sp=reverse_frequency:spb=intro:random_seed=3183493936:i=137899:s2at=10:gtgl=3:kws=precedence:add=on:bd=preordered:gtg=position_2999 on theBenchmark for (2999ds/137899Mi)
% 2.53/1.33 % (3388431)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=1858733743:i=140167_2999 on theBenchmark for (2999ds/140167Mi)
% 2.53/1.33 % (3388437)dis-21_1_sil=8000:lcm=predicate:random_seed=2721495756: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)
% 2.53/1.33 % (3388434)lrs+10_1_sil=8000:sp=occurrence:random_seed=1658567518:i=107:sd=3:ss=axioms:sgt=8_2999 on theBenchmark for (2999ds/107Mi)
% 2.53/1.33 % (3388436)dis-1011_1_sil=16000:fde=unused:s2agt=70:random_seed=3169204825:s2a=on:i=180:gtg=position_2999 on theBenchmark for (2999ds/180Mi)
% 2.53/1.33 % (3388434)Also succeeded, but the first one will report.
% 2.53/1.33 % (3388437)Also succeeded, but the first one will report.
% 2.53/1.33 % (3388436)Also succeeded, but the first one will report.
% 2.53/1.33 % (3388435)Refutation found. Thanks to Tanya!
% 2.53/1.33 % SZS status Unsatisfiable for theBenchmark
% 2.53/1.33 % SZS output start Proof for theBenchmark
% See solution above
% 2.53/1.33 % (3388435)------------------------------
% 2.53/1.33 % (3388435)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 2.53/1.33 % (3388435)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 2.53/1.33 % (3388435)CaDiCaL version: 2.1.3
% 2.53/1.33 % (3388435)Termination reason: Refutation
% 2.53/1.33 % (3388435)Time elapsed: 0.001 s
% 2.53/1.33 % (3388435)Peak memory usage: 88 MB
% 2.53/1.33 % (3388435)Instructions burned: 1 (million)
% 2.53/1.33 % (3388435)------------------------------
% 2.53/1.33 % (3388435)------------------------------
% 2.53/1.33 % (3388426)Success in time 0.279 s
% 2.53/1.33 % Vampire exiting
%------------------------------------------------------------------------------