%------------------------------------------------------------------------------
% File : Vampire-SAT---5.0.1
% Problem : SYO561_2 : TPTP v9.3.1. Bugfixed v5.4.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 SAT
% Computer : n004.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 02:31:41 PM UTC 2026
% Result : Theorem 0.08s 0.24s
% Output : Refutation 0.08s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SYO561_2 : TPTP v9.3.1. Bugfixed v5.4.0.
% 0.00/0.05 % Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 SAT
% 0.08/0.17 % Computer : n004.cluster.edu
% 0.08/0.17 % Model : x86_64 x86_64
% 0.08/0.17 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.17 % Memory : 8046.5625MB
% 0.08/0.17 % OS : Linux 6.8.0-71-generic
% 0.08/0.17 % CPULimit : 300
% 0.08/0.17 % WCLimit : 300
% 0.08/0.17 % DateTime : Mon Sep 28 17:48:37 UTC 2026
% 0.08/0.18 % CPUTime :
% 0.08/0.18 Running run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 SAT
% 0.08/0.21 Running first-order model finding
% 0.08/0.21 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
% 0.08/0.24 % (592431)Will run a generic schedule for satisfiability detection.
% 0.08/0.24 % (592440)ott+31_1_sil=16000:lcm=predicate:bce=on:newcnf=on:random_seed=475835132:i=116_2999 on theBenchmark for (2999ds/116Mi)
% 0.08/0.24 % (592440) found proof, printing to "/export/starexec/sandbox/tmp/vampire-proof-592431-592440"...
% 0.08/0.24 % (592440)...printing done.
% 0.08/0.24 % (592440)Refutation found. Thanks to Tanya!
% 0.08/0.24 % SZS status Theorem for theBenchmark
% 0.08/0.24 % SZS output start Proof for theBenchmark
% 0.08/0.24 fof(f1,conjecture,(
% 0.08/0.24 "Apple" != "Microsoft"),
% 0.08/0.24 file('/export/starexec/sandbox/benchmark/theBenchmark.p',apple_not_microsoft)).
% 0.08/0.24 fof(f2,negated_conjecture,(
% 0.08/0.24 ~ "Apple" != "Microsoft"),
% 0.08/0.24 inference(negated_conjecture,[status(cth)],[f1])).
% 0.08/0.24 fof(f3,plain,(
% 0.08/0.24 "Apple" != "Microsoft"),
% 0.08/0.24 introduced(theory,[distinctness_axiom])).
% 0.08/0.24 fof(f4,plain,(
% 0.08/0.24 "Apple" = "Microsoft"),
% 0.08/0.24 inference(flattening,[],[f2])).
% 0.08/0.24 fof(f5,plain,(
% 0.08/0.24 "Apple" != "Microsoft"),
% 0.08/0.24 inference(cnf_transformation,[],[f3])).
% 0.08/0.24 fof(f6,plain,(
% 0.08/0.24 "Apple" = "Microsoft"),
% 0.08/0.24 inference(cnf_transformation,[],[f4])).
% 0.08/0.24 fof(f7,plain,(
% 0.08/0.24 $false),
% 0.08/0.24 inference(forward_subsumption_resolution,[],[f5,f6])).
% 0.08/0.24 % SZS output end Proof for theBenchmark
% 0.08/0.24 % (592440)------------------------------
% 0.08/0.24 % (592440)Version: Vampire 5.0.1 (Release build, commit 5ef7c2677 on 2026-07-16 16:54:09 +0200)
% 0.08/0.24 % (592440)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.08/0.24 % (592440)CaDiCaL version: 2.1.3
% 0.08/0.24 % (592440)Termination reason: Refutation
% 0.08/0.24 % (592440)Time elapsed: 0.0000 s
% 0.08/0.24 % (592440)Peak memory usage: 11 MB
% 0.08/0.24 % (592431)Success in time 0.024 s
% 0.08/0.24 % Vampire exiting
%------------------------------------------------------------------------------