0.00/0.06 % Problem : theBenchmark.p : TPTP v0.0.0. Released v0.0.0. 0.00/0.07 % Command : vampire --mode casc -m 90000 -t %d %s 0.03/0.41 % Computer : n068.star.cs.uiowa.edu 0.03/0.41 % Model : x86_64 x86_64 0.03/0.41 % CPU : Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz 0.03/0.41 % Memory : 32218.625MB 0.03/0.41 % OS : Linux 3.10.0-693.2.2.el7.x86_64 0.03/0.41 % CPULimit : 300 0.03/0.41 % DateTime : Sat Jul 14 04:16:56 CDT 2018 0.03/0.41 % CPUTime : 0.03/0.41 Hi Geoff, go and have some cold beer while I am trying to solve this very hard problem! 0.03/0.41 % remaining time: 3000 next slice time: 3 0.07/0.44 dis+1002_4_gs=on:inst=on:nm=64:nwc=1.3:sas=z3:sac=on:sfr=on:smm=off:ssnc=none:sp=occurrence:tha=off:thf=on:updr=off_1 on theBenchmark 0.07/0.45 % Refutation found. Thanks to Tanya! 0.07/0.45 % SZS status Theorem for theBenchmark 0.07/0.45 % SZS output start Proof for theBenchmark 0.07/0.45 tff(f1,conjecture,( 0.07/0.45 ? [X0 : $real] : $difference(X0,0.0) = X0), 0.07/0.45 file('/export/starexec/sandbox2/benchmark/theBenchmark.p',real_difference_problem_9)). 0.07/0.45 tff(f2,negated_conjecture,( 0.07/0.45 ~? [X0 : $real] : $difference(X0,0.0) = X0), 0.07/0.45 inference(negated_conjecture,[],[f1])). 0.07/0.45 tff(f3,plain,( 0.07/0.45 ~? [X0 : $real] : $sum(X0,$uminus(0.0)) = X0), 0.07/0.45 inference(evaluation,[],[f2])). 0.07/0.45 tff(f4,plain,( 0.07/0.45 ! [X0 : $real] : $sum(X0,$uminus(0.0)) != X0), 0.07/0.45 inference(ennf_transformation,[],[f3])). 0.07/0.45 tff(f5,plain,( 0.07/0.45 ( ! [X0:$real] : ($sum(X0,$uminus(0.0)) != X0) )), 0.07/0.45 inference(cnf_transformation,[],[f4])). 0.07/0.45 tff(f6,plain,( 0.07/0.45 ( ! [X0:$real] : ($sum(X0,0.0) != X0) )), 0.07/0.45 inference(evaluation,[],[f5])). 0.07/0.45 tff(f8,plain,( 0.07/0.45 $sum($uminus(0.0),0.0) != $uminus(0.0)), 0.07/0.45 inference(Instantiation,[],[f6])). 0.07/0.45 tff(f9,plain,( 0.07/0.45 0.0 != $sum(0.0,0.0)), 0.07/0.45 inference(evaluation,[],[f8])). 0.07/0.45 tff(f10,plain,( 0.07/0.45 $false), 0.07/0.45 inference(evaluation,[],[f9])). 0.07/0.45 % SZS output end Proof for theBenchmark 0.07/0.45 % ------------------------------ 0.07/0.45 % Version: Vampire 4.1 for CASC J8 Entry 0.07/0.45 % Termination reason: Refutation 0.07/0.45 0.07/0.45 % Memory used [KB]: 511 0.07/0.45 % Time elapsed: 0.013 s 0.07/0.45 % ------------------------------ 0.07/0.45 % ------------------------------ 0.07/0.45 % Success in time 0.042 s 0.11/0.70 EOF