%------------------------------------------------------------------------------
% File : Vampire-SAT---5.0.1
% Problem : GRP137-1 : TPTP v9.3.1. Bugfixed v1.2.1.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 SAT
% Computer : n020.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 10:16:56 AM UTC 2026
% Result : Unsatisfiable 0.15s 0.47s
% Output : Refutation 0.15s
% Verified :
% SZS Type : Refutation
% Derivation depth : 3
% Number of leaves : 3
% Syntax : Number of formulae : 7 ( 7 unt; 0 def)
% Number of atoms : 7 ( 6 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 : 2 ( 1 avg)
% Number of predicates : 2 ( 0 usr; 1 prp; 0-2 aty)
% Number of functors : 3 ( 3 usr; 2 con; 0-2 aty)
% Number of variables : 0 ( 0 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f17,axiom,
greatest_lower_bound(a,b) = a,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax_antisymb_1) ).
fof(f18,plain,
a = greatest_lower_bound(a,b),
inference(reorient_equations,[],[f17]) ).
fof(f19,axiom,
greatest_lower_bound(a,b) = b,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',ax_antisymb_2) ).
fof(f20,plain,
b = greatest_lower_bound(a,b),
inference(reorient_equations,[],[f19]) ).
fof(f21,negated_conjecture,
a != b,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_ax_antisymb) ).
fof(f22,plain,
a = b,
inference(forward_demodulation,[],[f20,f18]) ).
fof(f23,plain,
$false,
inference(forward_subsumption_resolution,[],[f22,f21]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : GRP137-1 : TPTP v9.3.1. Bugfixed v1.2.1.
% 0.00/0.05 % Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 SAT
% 0.10/0.38 % Computer : n020.cluster.edu
% 0.10/0.38 % Model : x86_64 x86_64
% 0.10/0.38 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.38 % Memory : 8046.5625MB
% 0.10/0.38 % OS : Linux 6.8.0-71-generic
% 0.10/0.38 % CPULimit : 300
% 0.10/0.38 % WCLimit : 300
% 0.10/0.38 % DateTime : Sun Sep 27 09:33:20 UTC 2026
% 0.10/0.38 % CPUTime :
% 0.10/0.38 Running run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 SAT
% 0.10/0.42 Running first-order model finding
% 0.10/0.42 Running: /export/starexec/sandbox/solver/bin/vampire-ho --input_syntax tptp --output_axiom_names on --mode casc --intent sat -m 16384 --cores 7 -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.15/0.46 % (3130646)Will run a generic schedule for satisfiability detection.
% 0.15/0.46 % (3130651)fmb+10_1_sas=cadical:bce=on:rp=on:random_seed=3792203192_2999 on theBenchmark for (2999ds/0Mi)
% 0.15/0.46 % TRYING [1]
% 0.15/0.46 % TRYING [2]
% 0.15/0.46 % TRYING [3]
% 0.15/0.46 % (3130652)% WARNING: option uhcvi not known.
% 0.15/0.46 % TRYING [4]
% 0.15/0.46 % (3130654)dis+10_1_sil=32000:sp=arity:random_seed=3675165227:i=103:fgj=on_2999 on theBenchmark for (2999ds/103Mi)
% 0.15/0.46 % (3130652)dis+11_61:31_drc=ordering:lsd=5:bsr=unit_only:rp=on:newcnf=on:random_seed=3001593324:i=135531:add=off:rawr=on_2999 on theBenchmark for (2999ds/135531Mi)
% 0.15/0.46 % (3130653)dis+10_161_sil=256000:plsq=on:plsqr=61199697,1048576:gs=on:alpa=true:sac=on:slsq=on:cn=on:random_seed=3703502048:i=88024:add=on:rawr=on_2999 on theBenchmark for (2999ds/88024Mi)
% 0.15/0.46 % (3130656)ott+1_1_to=lpo:sil=16000:sp=reverse_arity:erd=off:random_seed=744761462:i=131_2999 on theBenchmark for (2999ds/131Mi)
% 0.15/0.46 % (3130655)ott+31_1_sil=16000:lcm=predicate:bce=on:newcnf=on:random_seed=1502435747:i=116_2999 on theBenchmark for (2999ds/116Mi)
% 0.15/0.46 % (3130657)ott-3_16_to=lpo:sil=16000:sp=arity:fd=off:rp=on:random_seed=4051698685:i=159:bs=unit_only:nicw=on:fsr=off:amm=off_2999 on theBenchmark for (2999ds/159Mi)
% 0.15/0.47 % (3130654) found proof, printing to "/export/starexec/sandbox/tmp/vampire-proof-3130646-3130654"...
% 0.15/0.47 % (3130652) found proof, printing to "/export/starexec/sandbox/tmp/vampire-proof-3130646-3130652"...
% 0.15/0.47 % (3130653) found proof, printing to "/export/starexec/sandbox/tmp/vampire-proof-3130646-3130653"...
% 0.15/0.47 % (3130656) found proof, printing to "/export/starexec/sandbox/tmp/vampire-proof-3130646-3130656"...
% 0.15/0.47 % (3130655) found proof, printing to "/export/starexec/sandbox/tmp/vampire-proof-3130646-3130655"...
% 0.15/0.47 % (3130657) found proof, printing to "/export/starexec/sandbox/tmp/vampire-proof-3130646-3130657"...
% 0.15/0.47 % (3130654)...printing done.
% 0.15/0.47 % (3130652)...printing done.
% 0.15/0.47 % (3130653)...printing done.
% 0.15/0.47 % (3130656)...printing done.
% 0.15/0.47 % (3130655)...printing done.
% 0.15/0.47 % (3130657)...printing done.
% 0.15/0.47 % (3130652)Refutation found. Thanks to Tanya!
% 0.15/0.47 % SZS status Unsatisfiable for theBenchmark
% 0.15/0.47 % SZS output start Proof for theBenchmark
% See solution above
% 0.15/0.47 % (3130652)------------------------------
% 0.15/0.47 % (3130652)Version: Vampire 5.0.1 (Release build, commit 5ef7c2677 on 2026-07-16 16:54:09 +0200)
% 0.15/0.47 % (3130652)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.15/0.47 % (3130652)CaDiCaL version: 2.1.3
% 0.15/0.47 % (3130652)Termination reason: Refutation
% 0.15/0.47 % (3130652)Time elapsed: 0.001 s
% 0.15/0.47 % (3130652)Peak memory usage: 11 MB
% 0.15/0.47 % (3130646)Success in time 0.039 s
% 0.15/0.47 % Vampire exiting
%------------------------------------------------------------------------------