%------------------------------------------------------------------------------
% File : Vampire-SAT---5.0.1
% Problem : HEN005-4 : TPTP v9.3.1. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 SAT
% Computer : n010.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 10:19:14 AM UTC 2026
% Result : Unsatisfiable 0.18s 0.48s
% Output : Refutation 0.18s
% Verified :
% SZS Type : Refutation
% Derivation depth : 7
% Number of leaves : 10
% Syntax : Number of formulae : 21 ( 17 unt; 0 def)
% Number of atoms : 26 ( 11 equ)
% Maximal formula atoms : 3 ( 1 avg)
% Number of connectives : 12 ( 7 ~; 5 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 6 ( 2 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 3 ( 1 usr; 1 prp; 0-2 aty)
% Number of functors : 5 ( 5 usr; 4 con; 0-2 aty)
% Number of variables : 16 ( 16 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [X0,X1] :
( ~ less_equal(X0,X1)
| divide(X0,X1) = zero ),
file('/export/starexec/sandbox/benchmark/Axioms/HEN002-0.ax',quotient_less_equal1) ).
fof(f2,axiom,
! [X0,X1] :
( less_equal(X0,X1)
| divide(X0,X1) != zero ),
file('/export/starexec/sandbox/benchmark/Axioms/HEN002-0.ax',quotient_less_equal2) ).
fof(f4,axiom,
! [X2,X0,X1] : less_equal(divide(divide(X0,X1),divide(X2,X1)),divide(divide(X0,X2),X1)),
file('/export/starexec/sandbox/benchmark/Axioms/HEN002-0.ax',quotient_property) ).
fof(f5,axiom,
! [X0] : less_equal(zero,X0),
file('/export/starexec/sandbox/benchmark/Axioms/HEN002-0.ax',zero_is_smallest) ).
fof(f6,axiom,
! [X0,X1] :
( ~ less_equal(X0,X1)
| ~ less_equal(X1,X0)
| X0 = X1 ),
file('/export/starexec/sandbox/benchmark/Axioms/HEN002-0.ax',less_equal_and_equal) ).
fof(f10,axiom,
! [X0] : divide(zero,X0) = zero,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',zero_divide_anything_is_zero) ).
fof(f11,plain,
! [X0] : zero = divide(zero,X0),
inference(reorient_equations,[],[f10]) ).
fof(f14,axiom,
! [X0] : divide(X0,zero) = X0,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',x_divide_zero_is_x) ).
fof(f15,axiom,
less_equal(a,b),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',a_LE_b) ).
fof(f16,axiom,
less_equal(b,c),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',b_LE_c) ).
fof(f17,negated_conjecture,
~ less_equal(a,c),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_a_LE_c) ).
fof(f26,plain,
zero = divide(a,b),
inference(resolution,[],[f1,f15]) ).
fof(f27,plain,
zero = divide(b,c),
inference(resolution,[],[f1,f16]) ).
fof(f29,plain,
zero != divide(a,c),
inference(resolution,[],[f2,f17]) ).
fof(f40,plain,
! [X0] :
( ~ less_equal(X0,zero)
| zero = X0 ),
inference(resolution,[],[f6,f5]) ).
fof(f62,plain,
! [X0] : less_equal(divide(divide(a,X0),divide(b,X0)),divide(zero,X0)),
inference(superposition,[],[f4,f26]) ).
fof(f70,plain,
! [X0] : less_equal(divide(divide(a,X0),divide(b,X0)),zero),
inference(forward_demodulation,[],[f62,f11]) ).
fof(f200,plain,
less_equal(divide(divide(a,c),zero),zero),
inference(superposition,[],[f70,f27]) ).
fof(f207,plain,
less_equal(divide(a,c),zero),
inference(forward_demodulation,[],[f200,f14]) ).
fof(f364,plain,
zero = divide(a,c),
inference(resolution,[],[f207,f40]) ).
fof(f373,plain,
$false,
inference(forward_subsumption_resolution,[],[f364,f29]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : HEN005-4 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.05 % Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 SAT
% 0.10/0.37 % Computer : n010.cluster.edu
% 0.10/0.37 % Model : x86_64 x86_64
% 0.10/0.37 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.37 % Memory : 8046.5625MB
% 0.10/0.37 % OS : Linux 6.8.0-71-generic
% 0.10/0.37 % CPULimit : 300
% 0.10/0.37 % WCLimit : 300
% 0.10/0.37 % DateTime : Sun Sep 27 10:50:07 UTC 2026
% 0.10/0.37 % CPUTime :
% 0.10/0.37 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
% 0.18/0.48 % (786016)Will run a generic schedule for satisfiability detection.
% 0.18/0.48 % (786027)ott-3_16_to=lpo:sil=16000:sp=arity:fd=off:rp=on:random_seed=2400494609:i=159:bs=unit_only:nicw=on:fsr=off:amm=off_3000 on theBenchmark for (3000ds/159Mi)
% 0.18/0.48 % (786022)% WARNING: option uhcvi not known.
% 0.18/0.48 % (786021)fmb+10_1_sas=cadical:bce=on:rp=on:random_seed=2221244460_3000 on theBenchmark for (3000ds/0Mi)
% 0.18/0.48 % (786025)ott+31_1_sil=16000:lcm=predicate:bce=on:newcnf=on:random_seed=1221254946:i=116_3000 on theBenchmark for (3000ds/116Mi)
% 0.18/0.48 % (786024)dis+10_1_sil=32000:sp=arity:random_seed=671825863:i=103:fgj=on_3000 on theBenchmark for (3000ds/103Mi)
% 0.18/0.48 % (786022)dis+11_61:31_drc=ordering:lsd=5:bsr=unit_only:rp=on:newcnf=on:random_seed=3070487069:i=135531:add=off:rawr=on_3000 on theBenchmark for (3000ds/135531Mi)
% 0.18/0.48 % (786023)dis+10_161_sil=256000:plsq=on:plsqr=61199697,1048576:gs=on:alpa=true:sac=on:slsq=on:cn=on:random_seed=3038558714:i=88024:add=on:rawr=on_3000 on theBenchmark for (3000ds/88024Mi)
% 0.18/0.48 % (786026)ott+1_1_to=lpo:sil=16000:sp=reverse_arity:erd=off:random_seed=2805608828:i=131_3000 on theBenchmark for (3000ds/131Mi)
% 0.18/0.48 % TRYING [1]
% 0.18/0.48 % TRYING [2]
% 0.18/0.48 % TRYING [3]
% 0.18/0.48 % TRYING [4]
% 0.18/0.48 % (786025) found proof, printing to "/export/starexec/sandbox/tmp/vampire-proof-786016-786025"...
% 0.18/0.48 % (786022) found proof, printing to "/export/starexec/sandbox/tmp/vampire-proof-786016-786022"...
% 0.18/0.48 % (786024) found proof, printing to "/export/starexec/sandbox/tmp/vampire-proof-786016-786024"...
% 0.18/0.48 % (786025)...printing done.
% 0.18/0.48 % TRYING [5]
% 0.18/0.48 % (786023) found proof, printing to "/export/starexec/sandbox/tmp/vampire-proof-786016-786023"...
% 0.18/0.48 % (786022)...printing done.
% 0.18/0.48 % (786024)...printing done.
% 0.18/0.48 % (786025)Refutation found. Thanks to Tanya!
% 0.18/0.48 % SZS status Unsatisfiable for theBenchmark
% 0.18/0.48 % SZS output start Proof for theBenchmark
% See solution above
% 0.18/0.48 % (786025)------------------------------
% 0.18/0.48 % (786025)Version: Vampire 5.0.1 (Release build, commit 5ef7c2677 on 2026-07-16 16:54:09 +0200)
% 0.18/0.48 % (786025)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.18/0.48 % (786025)CaDiCaL version: 2.1.3
% 0.18/0.48 % (786025)Termination reason: Refutation
% 0.18/0.48 % (786025)Time elapsed: 0.011 s
% 0.18/0.48 % (786025)Peak memory usage: 11 MB
% 0.18/0.48 % (786025)Instructions burned: 9 (million)
% 0.18/0.48 % (786016)Success in time 0.044 s
% 0.18/0.48 % Vampire exiting
%------------------------------------------------------------------------------