%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : FLD024-3 : TPTP v9.3.1. Bugfixed v2.1.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% Computer : n008.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 09:49:03 AM UTC 2026
% Result : Unsatisfiable 3.64s 1.29s
% Output : Refutation 3.64s
% Verified :
% SZS Type : Refutation
% Derivation depth : 7
% Number of leaves : 8
% Syntax : Number of formulae : 15 ( 8 unt; 0 def)
% Number of atoms : 26 ( 0 equ)
% Maximal formula atoms : 4 ( 1 avg)
% Number of connectives : 29 ( 18 ~; 11 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 11 ( 4 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 3 ( 2 usr; 1 prp; 0-3 aty)
% Number of functors : 4 ( 4 usr; 3 con; 0-1 aty)
% Number of variables : 16 ( 16 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f2,axiom,
! [X2,X3,X0,X1,X4,X5] :
( sum(X0,X1,X2)
| ~ sum(X3,X4,X0)
| ~ sum(X4,X1,X5)
| ~ sum(X3,X5,X2) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',associativity_addition_2) ).
fof(f3,axiom,
! [X0] :
( sum(additive_identity,X0,X0)
| ~ defined(X0) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',existence_of_identity_addition) ).
fof(f4,axiom,
! [X0] :
( sum(additive_inverse(X0),X0,additive_identity)
| ~ defined(X0) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',existence_of_inverse_addition) ).
fof(f5,axiom,
! [X2,X0,X1] :
( sum(X0,X1,X2)
| ~ sum(X1,X0,X2) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_addition) ).
fof(f27,axiom,
defined(a),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',a_is_defined) ).
fof(f28,axiom,
defined(b),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',b_is_defined) ).
fof(f29,negated_conjecture,
sum(b,additive_inverse(a),additive_identity),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',sum_3) ).
fof(f30,negated_conjecture,
~ sum(additive_identity,a,b),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',not_sum_4) ).
fof(f35,plain,
! [X2,X0,X1] :
( ~ sum(X1,a,X2)
| ~ sum(X0,X1,additive_identity)
| ~ sum(X0,X2,b) ),
inference(resolution,[],[f2,f30]) ).
fof(f46,plain,
! [X0] :
( ~ sum(X0,additive_inverse(a),additive_identity)
| ~ sum(X0,additive_identity,b)
| ~ defined(a) ),
inference(resolution,[],[f35,f4]) ).
fof(f48,plain,
! [X0] :
( ~ sum(X0,additive_inverse(a),additive_identity)
| ~ sum(X0,additive_identity,b) ),
inference(forward_subsumption_resolution,[],[f46,f27]) ).
fof(f57,plain,
~ sum(b,additive_identity,b),
inference(resolution,[],[f48,f29]) ).
fof(f76,plain,
~ sum(additive_identity,b,b),
inference(resolution,[],[f57,f5]) ).
fof(f92,plain,
~ defined(b),
inference(resolution,[],[f76,f3]) ).
fof(f96,plain,
$false,
inference(forward_subsumption_resolution,[],[f92,f28]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : FLD024-3 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.05 % Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.10/0.18 % Computer : n008.cluster.edu
% 0.10/0.18 % Model : x86_64 x86_64
% 0.10/0.18 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.18 % Memory : 8046.5625MB
% 0.10/0.18 % OS : Linux 6.8.0-71-generic
% 0.10/0.18 % CPULimit : 300
% 0.10/0.18 % WCLimit : 300
% 0.10/0.18 % DateTime : Tue Sep 29 00:28:54 UTC 2026
% 0.10/0.18 % CPUTime :
% 0.10/0.18 Running run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.10/0.22 Running first-order theorem proving
% 0.10/0.22 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
% 3.64/1.29 % (2812169)Input is clausal, will run a generic CNF schedule.
% 3.64/1.29 % (2812180)dis-21_1_sil=8000:lcm=predicate:random_seed=4013028635: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)
% 3.64/1.29 % (2812180)Instruction limit reached!
% 3.64/1.29 % (2812180)------------------------------
% 3.64/1.29 % (2812180)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 3.64/1.29 % (2812180)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 3.64/1.29 % (2812180)CaDiCaL version: 2.1.3
% 3.64/1.29 % (2812180)Termination reason: Instruction limit
% 3.64/1.29 % (2812180)Termination phase: Saturation
% 3.64/1.29 % (2812180)Time elapsed: 0.041 s
% 3.64/1.29 % (2812180)Peak memory usage: 89 MB
% 3.64/1.29 % (2812180)Instructions burned: 117 (million)
% 3.64/1.29 % (2812178)dis-1002_1_to=lpo:sil=16000:fd=off:random_seed=2966836862:st=1.5:i=114:aac=none:ins=7:ss=axioms:fsd=on_2999 on theBenchmark for (2999ds/114Mi)
% 3.64/1.29 % (2812176)lrs+1002_1_ncem=casc2026/models/loop8.pt:sil=128000:tgt=ground:npcc=on:sp=reverse_frequency:spb=intro:random_seed=3350945177:i=137899:s2at=10:gtgl=3:kws=precedence:add=on:bd=preordered:gtg=position_2999 on theBenchmark for (2999ds/137899Mi)
% 3.64/1.29 % (2812177)lrs+10_1_sil=8000:sp=occurrence:random_seed=2736650696:i=107:sd=3:ss=axioms:sgt=8_2999 on theBenchmark for (2999ds/107Mi)
% 3.64/1.29 % (2812175)lrs+10_1_ncem=casc2026/models/loop8.pt:sil=128000:npcc=on:urr=on:br=off:random_seed=1546341454:i=132376:av=off_2999 on theBenchmark for (2999ds/132376Mi)
% 3.64/1.29 % (2812174)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=639054188:i=140167_2999 on theBenchmark for (2999ds/140167Mi)
% 3.64/1.29 % (2812178)First to succeed.
% 3.64/1.29 % (2812177)Also succeeded, but the first one will report.
% 3.64/1.29 % (2812178)Solution written to "/export/starexec/sandbox2/tmp/vampire-proof-2812169"
% 3.64/1.29 % (2812179)dis-1011_1_sil=16000:fde=unused:s2agt=70:random_seed=3698683914:s2a=on:i=180:gtg=position_2999 on theBenchmark for (2999ds/180Mi)
% 3.64/1.29 % (2812179)Also succeeded, but the first one will report.
% 3.64/1.29 % (2812187)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=2133012896:i=143:sd=2:aac=none:ss=axioms:sgt=16_2998 on theBenchmark for (2998ds/143Mi)
% 3.64/1.29 % (2812187)Instruction limit reached!
% 3.64/1.29 % (2812187)------------------------------
% 3.64/1.29 % (2812187)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 3.64/1.29 % (2812187)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 3.64/1.29 % (2812187)CaDiCaL version: 2.1.3
% 3.64/1.29 % (2812187)Termination reason: Instruction limit
% 3.64/1.29 % (2812187)Termination phase: Saturation
% 3.64/1.29 % (2812187)Time elapsed: 0.048 s
% 3.64/1.29 % (2812187)Peak memory usage: 89 MB
% 3.64/1.29 % (2812187)Instructions burned: 144 (million)
% 3.64/1.29 % (2812178)Refutation found. Thanks to Tanya!
% 3.64/1.29 % SZS status Unsatisfiable for theBenchmark
% 3.64/1.29 % SZS output start Proof for theBenchmark
% See solution above
% 3.64/1.29 % (2812178)------------------------------
% 3.64/1.29 % (2812178)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 3.64/1.29 % (2812178)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 3.64/1.29 % (2812178)CaDiCaL version: 2.1.3
% 3.64/1.29 % (2812178)Termination reason: Refutation
% 3.64/1.29 % (2812178)Time elapsed: 0.003 s
% 3.64/1.29 % (2812178)Peak memory usage: 88 MB
% 3.64/1.29 % (2812178)Instructions burned: 2 (million)
% 3.64/1.29 % (2812178)------------------------------
% 3.64/1.29 % (2812178)------------------------------
% 3.64/1.29 % (2812169)Success in time 0.432 s
% 3.64/1.29 % Vampire exiting
%------------------------------------------------------------------------------