%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : HEN002-3 : TPTP v9.3.1. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% Computer : n015.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 10:19:03 AM UTC 2026
% Result : Unsatisfiable 3.65s 1.49s
% Output : Refutation 3.65s
% Verified :
% SZS Type : Refutation
% Derivation depth : 4
% Number of leaves : 3
% Syntax : Number of formulae : 7 ( 5 unt; 0 def)
% Number of atoms : 9 ( 4 equ)
% Maximal formula atoms : 2 ( 1 avg)
% Number of connectives : 8 ( 6 ~; 2 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 5 ( 2 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 3 ( 1 usr; 1 prp; 0-2 aty)
% Number of functors : 3 ( 3 usr; 2 con; 0-2 aty)
% Number of variables : 3 ( 3 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [X0,X1] :
( divide(X0,X1) = zero
| ~ less_equal(X0,X1) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',quotient_less_equal1) ).
fof(f5,axiom,
! [X0] : less_equal(zero,X0),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',zero_is_smallest) ).
fof(f8,negated_conjecture,
divide(zero,a) != zero,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_zero_over_a_is_zero) ).
fof(f9,plain,
zero != divide(zero,a),
inference(reorient_equations,[],[f8]) ).
fof(f10,plain,
( zero != zero
| ~ less_equal(zero,a) ),
inference(superposition,[],[f9,f1]) ).
fof(f12,plain,
~ less_equal(zero,a),
inference(trivial_inequality_removal,[],[f10]) ).
fof(f13,plain,
$false,
inference(forward_subsumption_resolution,[],[f12,f5]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : HEN002-3 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.06 % Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.12/0.38 % Computer : n015.cluster.edu
% 0.12/0.38 % Model : x86_64 x86_64
% 0.12/0.38 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.38 % Memory : 8046.5625MB
% 0.12/0.38 % OS : Linux 6.8.0-71-generic
% 0.12/0.38 % CPULimit : 300
% 0.12/0.38 % WCLimit : 300
% 0.12/0.38 % DateTime : Sun Sep 27 10:52:30 UTC 2026
% 0.12/0.38 % CPUTime :
% 0.12/0.38 Running run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.12/0.41 Running first-order theorem proving
% 0.12/0.41 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
% 3.65/1.49 % (1477265)Input is clausal, will run a generic CNF schedule.
% 3.65/1.49 % (1477270)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=3152015756:i=140167_2999 on theBenchmark for (2999ds/140167Mi)
% 3.65/1.49 % (1477273)lrs+10_1_sil=8000:sp=occurrence:random_seed=2794535232:i=107:sd=3:ss=axioms:sgt=8_2999 on theBenchmark for (2999ds/107Mi)
% 3.65/1.49 % (1477274)dis-1002_1_to=lpo:sil=16000:fd=off:random_seed=2894714111:st=1.5:i=114:aac=none:ins=7:ss=axioms:fsd=on_2999 on theBenchmark for (2999ds/114Mi)
% 3.65/1.49 % (1477271)lrs+10_1_ncem=casc2026/models/loop8.pt:sil=128000:npcc=on:urr=on:br=off:random_seed=123722714:i=132376:av=off_2999 on theBenchmark for (2999ds/132376Mi)
% 3.65/1.49 % (1477272)lrs+1002_1_ncem=casc2026/models/loop8.pt:sil=128000:tgt=ground:npcc=on:sp=reverse_frequency:spb=intro:random_seed=2355447530:i=137899:s2at=10:gtgl=3:kws=precedence:add=on:bd=preordered:gtg=position_2999 on theBenchmark for (2999ds/137899Mi)
% 3.65/1.49 % (1477275)dis-1011_1_sil=16000:fde=unused:s2agt=70:random_seed=2693068209:s2a=on:i=180:gtg=position_2999 on theBenchmark for (2999ds/180Mi)
% 3.65/1.49 % (1477274)Also succeeded, but the first one will report.
% 3.65/1.49 % (1477273)Also succeeded, but the first one will report.
% 3.65/1.49 % (1477275)First to succeed.
% 3.65/1.49 % (1477275)Solution written to "/export/starexec/sandbox/tmp/vampire-proof-1477265"
% 3.65/1.49 % (1477276)dis-21_1_sil=8000:lcm=predicate:random_seed=324148136: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)
% 3.65/1.49 % (1477276)Also succeeded, but the first one will report.
% 3.65/1.49 % (1477275)Refutation found. Thanks to Tanya!
% 3.65/1.49 % SZS status Unsatisfiable for theBenchmark
% 3.65/1.49 % SZS output start Proof for theBenchmark
% See solution above
% 3.65/1.49 % (1477275)------------------------------
% 3.65/1.49 % (1477275)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 3.65/1.49 % (1477275)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 3.65/1.49 % (1477275)CaDiCaL version: 2.1.3
% 3.65/1.49 % (1477275)Termination reason: Refutation
% 3.65/1.49 % (1477275)Time elapsed: 0.002 s
% 3.65/1.49 % (1477275)Peak memory usage: 88 MB
% 3.65/1.49 % (1477275)------------------------------
% 3.65/1.49 % (1477275)------------------------------
% 3.65/1.49 % (1477265)Success in time 0.438 s
% 3.65/1.49 % Vampire exiting
%------------------------------------------------------------------------------