%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : SYO028^1 : TPTP v9.3.1. Released v3.7.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox/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 : Wed Sep 30 08:46:19 AM UTC 2026
% Result : Theorem 0.20s 0.27s
% Output : Refutation 0.20s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SYO028^1 : TPTP v9.3.1. Released v3.7.0.
% 0.00/0.05 % Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.10/0.18 % Computer : n017.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 16:17:56 UTC 2026
% 0.10/0.18 % CPUTime :
% 0.10/0.18 Running run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.10/0.22 Running higher-order theorem proving
% 0.10/0.23 Running: /export/starexec/sandbox/solver/bin/vampire-ho --input_syntax tptp --output_axiom_names on --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.20/0.27 % (535457)Detected formulas, will run a generic FOF schedule.
% 0.20/0.27 % (535473)lrs+1011_1_sp=occurrence:random_seed=2053199882:st=6:sd=4:ss=included_2999 on theBenchmark for (2999ds/0Mi)
% 0.20/0.27 % (535473) found proof, printing to "/export/starexec/sandbox/tmp/vampire-proof-535457-535473"...
% 0.20/0.27 % (535473)...printing done.
% 0.20/0.27 % (535473)Refutation found. Thanks to Tanya!
% 0.20/0.27 % SZS status Theorem for theBenchmark
% 0.20/0.27 % SZS output start Proof for theBenchmark
% 0.20/0.27 tff(f1,conjecture,(
% 0.20/0.27 ~ ! [X0 : $o] : X0),
% 0.20/0.27 file('/export/starexec/sandbox/benchmark/theBenchmark.p',conj)).
% 0.20/0.27 tff(f2,negated_conjecture,(
% 0.20/0.27 ~ ~ ! [X0 : $o] : X0),
% 0.20/0.27 inference(negated_conjecture,[status(cth)],[f1])).
% 0.20/0.27 tff(f3,plain,(
% 0.20/0.27 ~ ~ ! [X0 : $o] : X0),
% 0.20/0.27 inference(rectify,[],[f2])).
% 0.20/0.27 tff(f4,plain,(
% 0.20/0.27 ~ ~ ! [X0 : $o] : ($true = X0)),
% 0.20/0.27 inference(fool_elimination,[],[f3])).
% 0.20/0.27 tff(f5,plain,(
% 0.20/0.27 ! [X0 : $o] : ($true = X0)),
% 0.20/0.27 inference(flattening,[],[f4])).
% 0.20/0.27 tff(f6,plain,(
% 0.20/0.27 ( ! [X0 : $o] : (($true = X0)) )),
% 0.20/0.27 inference(cnf_transformation,[],[f5])).
% 0.20/0.27 tff(f7,definition,(
% 0.20/0.27 ($true != $false)),
% 0.20/0.27 introduced(theory,[fool_distinctness_axiom])).
% 0.20/0.27 tff(f9,plain,(
% 0.20/0.27 $false),
% 0.20/0.27 inference(forward_subsumption_resolution,[],[f7,f6])).
% 0.20/0.27 % SZS output end Proof for theBenchmark
% 0.20/0.27 % (535473)------------------------------
% 0.20/0.27 % (535473)Version: Vampire 5.0.1 (Release build, commit 5ef7c2677 on 2026-07-16 16:54:09 +0200)
% 0.20/0.27 % (535473)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.20/0.27 % (535473)CaDiCaL version: 2.1.3
% 0.20/0.27 % (535473)Termination reason: Refutation
% 0.20/0.27 % (535473)Time elapsed: 0.0000 s
% 0.20/0.27 % (535473)Peak memory usage: 11 MB
% 0.20/0.27 % (535457)Success in time 0.034 s
% 0.20/0.27 % Vampire exiting
%------------------------------------------------------------------------------