0.00/0.03 % Problem : theBenchmark.p : TPTP v0.0.0. Released v0.0.0. 0.00/0.03 % Command : run_vampire %s %d THM 0.08/0.34 % Computer : n026.cluster.edu 0.08/0.34 % Model : x86_64 x86_64 0.08/0.34 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz 0.08/0.34 % Memory : 8046.5625MB 0.08/0.34 % OS : Linux 6.8.0-71-generic 0.08/0.34 % CPULimit : 1440 0.08/0.34 % WCLimit : 180 0.08/0.34 % DateTime : Mon Jul 27 09:21:35 UTC 2026 0.08/0.34 % CPUTime : 0.15/0.38 This is a THF_ problem 0.15/0.38 Running higher-order theorem proving 0.15/0.39 Running /export/starexec/sandbox2/solver/bin/vampire-hol --cores 7 --input_syntax tptp --proof tptp --output_axiom_names on --print_def_sorts on --mode portfolio --schedule snake_tptp_hol /export/starexec/sandbox2/tmp/tmp.GrvsVE664G/E---3.1_2520289.p -m 16384 -t 180 0.15/0.43 % (2520355)dis+1010_1:1_au=on:cbe=off:chr=on:fsr=off:hfsq=on:nm=64:sos=theory:sp=weighted_frequency:i=27:si=on:rtra=on_0 on E---3.1_2520289 for (1799ds/27Mi) 0.15/0.43 % (2520354)lrs+10_1:1_c=on:cnfonf=conj_eager:fd=off:fe=off:kws=frequency:spb=intro:i=4:si=on:rtra=on_0 on E---3.1_2520289 for (1799ds/4Mi) 0.15/0.43 % (2520357)lrs+1002_1:128_aac=none:au=on:cnfonf=lazy_not_gen_be_off:sos=all:i=2:si=on:rtra=on_0 on E---3.1_2520289 for (1799ds/2Mi) 0.15/0.43 % (2520357)Instruction limit reached! 0.15/0.43 % (2520357)------------------------------ 0.15/0.43 % (2520357)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100) 0.15/0.43 % (2520357)Termination reason: Unknown 0.15/0.43 % (2520357)Termination phase: shuffling 0.15/0.43 0.15/0.43 % (2520357)Memory used [KB]: 1023 0.15/0.43 % (2520357)Time elapsed: 0.003 s 0.15/0.43 % (2520357)Instructions burned: 2 (million) 0.15/0.44 % (2520357)------------------------------ 0.15/0.44 % (2520357)------------------------------ 0.15/0.44 % (2520356)lrs+10_1:1_au=on:inj=on:i=2:si=on:rtra=on_0 on E---3.1_2520289 for (1799ds/2Mi) 0.15/0.44 % (2520354)Instruction limit reached! 0.15/0.44 % (2520354)------------------------------ 0.15/0.44 % (2520354)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100) 0.15/0.44 % (2520354)Termination reason: Unknown 0.15/0.44 % (2520354)Termination phase: Property scanning 0.15/0.44 0.15/0.44 % (2520354)Memory used [KB]: 1023 0.15/0.44 % (2520354)Time elapsed: 0.004 s 0.15/0.44 % (2520354)Instructions burned: 4 (million) 0.15/0.44 % (2520354)------------------------------ 0.15/0.44 % (2520354)------------------------------ 0.15/0.44 % (2520353)lrs+1002_1:8_bd=off:fd=off:hud=10:tnu=1:i=183:si=on:rtra=on_0 on E---3.1_2520289 for (1799ds/183Mi) 0.15/0.44 % (2520356)Instruction limit reached! 0.15/0.44 % (2520356)------------------------------ 0.15/0.44 % (2520356)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100) 0.15/0.44 % (2520356)Termination reason: Unknown 0.15/0.44 % (2520356)Termination phase: Property scanning 0.15/0.44 0.15/0.44 % (2520356)Memory used [KB]: 1023 0.15/0.44 % (2520356)Time elapsed: 0.003 s 0.15/0.44 % (2520356)Instructions burned: 2 (million) 0.15/0.44 % (2520356)------------------------------ 0.15/0.44 % (2520356)------------------------------ 0.15/0.44 % (2520355)First to succeed. 0.15/0.44 % (2520358)lrs+1002_1:1_au=on:bd=off:e2e=on:sd=2:sos=on:ss=axioms:i=275:si=on:rtra=on_0 on E---3.1_2520289 for (1799ds/275Mi) 0.15/0.44 % (2520358)Refutation not found, incomplete strategy 0.15/0.44 % (2520358)------------------------------ 0.15/0.44 % (2520358)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100) 0.15/0.44 % (2520358)Termination reason: Refutation not found, incomplete strategy 0.15/0.44 0.15/0.44 0.15/0.44 % (2520358)Memory used [KB]: 5500 0.15/0.44 % (2520358)Time elapsed: 0.003 s 0.15/0.44 % (2520358)Instructions burned: 2 (million) 0.15/0.44 % (2520358)------------------------------ 0.15/0.44 % (2520358)------------------------------ 0.15/0.44 % (2520353)Also succeeded, but the first one will report. 0.15/0.44 % (2520355)Refutation found. Thanks to Tanya! 0.15/0.44 % SZS status Theorem for E---3.1_2520289 0.15/0.44 % SZS output start Proof for E---3.1_2520289 0.15/0.44 thf(func_def_0, type, emptyset: $i > $o). 0.15/0.44 thf(func_def_1, type, union: ($i > $o) > ($i > $o) > $i > $o). 0.15/0.44 thf(func_def_3, type, singleton: $i > $i > $o). 0.15/0.44 thf(func_def_5, type, sup: ($i > $o) > $i). 0.15/0.44 thf(func_def_6, type, supset: (($i > $o) > $o) > $i > $o). 0.15/0.44 thf(func_def_7, type, unionset: (($i > $o) > $o) > $i > $o). 0.15/0.44 thf(func_def_8, type, addition: $i > $i > $i). 0.15/0.44 thf(func_def_9, type, leq: $i > $i > $o). 0.15/0.44 thf(func_def_10, type, multiplication: $i > $i > $i). 0.15/0.44 thf(func_def_11, type, crossmult: ($i > $o) > ($i > $o) > $i > $o). 0.15/0.44 thf(func_def_13, type, vEPSILON: !>[X0: $tType]:((X0 > $o) > X0)). 0.15/0.44 thf(func_def_28, type, ph2: !>[X0: $tType]:(X0)). 0.15/0.44 thf(f71,plain,( 0.15/0.44 $false), 0.15/0.44 inference(trivial_inequality_removal,[status(thm)],[f70])). 0.15/0.44 thf(f70,plain,( 0.15/0.44 (sK0 != sK0)), 0.15/0.44 inference(superposition,[status(thm)],[f65,f62])). 0.15/0.44 thf(f62,plain,( 0.15/0.44 ( ! [X0 : $i] : (((sup @ (= @ X0)) = X0)) )), 0.15/0.44 inference(beta_eta_normalization,[status(thm)],[f59])). 0.15/0.44 thf(f59,plain,( 0.15/0.44 ( ! [X0 : $i] : (((sup @ ((^[Y0 : $i]: ((^[Y1 : $i]: (Y0 = Y1)))) @ X0)) = X0)) )), 0.15/0.44 inference(definition_unfolding,[status(thm)],[f50,f41])). 0.15/0.44 thf(f41,plain,( 0.15/0.44 (singleton = (^[Y0 : $i]: ((^[Y1 : $i]: (Y0 = Y1)))))), 0.15/0.44 inference(cnf_transformation,[status(thm)],[f27])). 0.15/0.44 thf(f27,plain,( 0.15/0.44 (singleton = (^[Y0 : $i]: ((^[Y1 : $i]: (Y0 = Y1)))))), 0.15/0.44 inference(fool_elimination,[status(thm)],[f26])). 0.15/0.44 thf(f26,plain,( 0.15/0.44 ((^[X0 : $i, X1 : $i] : ((X0 = X1))) = singleton)), 0.15/0.44 inference(rectify,[status(thm)],[f3])). 0.15/0.44 thf(f3,axiom,( 0.15/0.44 ((^[X0 : $i, X2 : $i] : ((X0 = X2))) = singleton)), 0.15/0.44 file('/export/starexec/sandbox2/tmp/tmp.GrvsVE664G/E---3.1_2520289.p',singleton_def)). 0.15/0.44 thf(f50,plain,( 0.15/0.44 ( ! [X0 : $i] : (((sup @ (singleton @ X0)) = X0)) )), 0.15/0.44 inference(cnf_transformation,[status(thm)],[f8])). 0.15/0.44 thf(f8,axiom,( 0.15/0.44 ! [X0 : $i] : ((sup @ (singleton @ X0)) = X0)), 0.15/0.44 file('/export/starexec/sandbox2/tmp/tmp.GrvsVE664G/E---3.1_2520289.p',sup_singleset)). 0.15/0.44 thf(f65,plain,( 0.15/0.44 ((sup @ (= @ sK0)) != sK0)), 0.15/0.44 inference(beta_eta_normalization,[status(thm)],[f64])). 0.15/0.44 thf(f64,plain,( 0.15/0.44 ((sup @ (^[Y0 : $i]: (sK0 = Y0))) != sK0)), 0.15/0.44 inference(boolean_simplification,[status(thm)],[f63])). 0.15/0.44 thf(f63,plain,( 0.15/0.44 ((sup @ (^[Y0 : $i]: ((sK0 = Y0) | (sK0 = Y0)))) != sK0)), 0.15/0.44 inference(beta_eta_normalization,[status(thm)],[f61])). 0.15/0.44 thf(f61,plain,( 0.15/0.44 (sK0 != ((^[Y0 : $i]: ((^[Y1 : $i]: (sup @ ((^[Y2 : $i > $o]: ((^[Y3 : $i > $o]: ((^[Y4 : $i]: ((Y3 @ Y4) | (Y2 @ Y4))))))) @ ((^[Y2 : $i]: ((^[Y3 : $i]: (Y2 = Y3)))) @ Y0) @ ((^[Y2 : $i]: ((^[Y3 : $i]: (Y2 = Y3)))) @ Y1)))))) @ sK0 @ sK0))), 0.15/0.44 inference(definition_unfolding,[status(thm)],[f52,f55])). 0.15/0.44 thf(f55,plain,( 0.15/0.44 (addition = (^[Y0 : $i]: ((^[Y1 : $i]: (sup @ ((^[Y2 : $i > $o]: ((^[Y3 : $i > $o]: ((^[Y4 : $i]: ((Y3 @ Y4) | (Y2 @ Y4))))))) @ ((^[Y2 : $i]: ((^[Y3 : $i]: (Y2 = Y3)))) @ Y0) @ ((^[Y2 : $i]: ((^[Y3 : $i]: (Y2 = Y3)))) @ Y1)))))))), 0.15/0.44 inference(definition_unfolding,[status(thm)],[f46,f42,f41,f41])). 0.15/0.44 thf(f42,plain,( 0.15/0.44 (union = (^[Y0 : $i > $o]: ((^[Y1 : $i > $o]: ((^[Y2 : $i]: ((Y1 @ Y2) | (Y0 @ Y2))))))))), 0.15/0.44 inference(cnf_transformation,[status(thm)],[f23])). 0.15/0.44 thf(f23,plain,( 0.15/0.44 (union = (^[Y0 : $i > $o]: ((^[Y1 : $i > $o]: ((^[Y2 : $i]: ((Y1 @ Y2) | (Y0 @ Y2))))))))), 0.15/0.44 inference(fool_elimination,[status(thm)],[f22])). 0.15/0.44 thf(f22,plain,( 0.15/0.44 (union = (^[X0 : $i > $o, X1 : $i > $o, X2 : $i] : ((X0 @ X2) | (X1 @ X2))))), 0.15/0.44 inference(rectify,[status(thm)],[f2])). 0.15/0.44 thf(f2,axiom,( 0.15/0.44 (union = (^[X0 : $i > $o, X1 : $i > $o, X2 : $i] : ((X0 @ X2) | (X1 @ X2))))), 0.15/0.44 file('/export/starexec/sandbox2/tmp/tmp.GrvsVE664G/E---3.1_2520289.p',union_def)). 0.15/0.44 thf(f46,plain,( 0.15/0.44 (addition = (^[Y0 : $i]: ((^[Y1 : $i]: (sup @ (union @ (singleton @ Y0) @ (singleton @ Y1)))))))), 0.15/0.44 inference(cnf_transformation,[status(thm)],[f24])). 0.15/0.44 thf(f24,plain,( 0.15/0.44 (addition = (^[Y0 : $i]: ((^[Y1 : $i]: (sup @ (union @ (singleton @ Y0) @ (singleton @ Y1)))))))), 0.15/0.44 inference(fool_elimination,[status(thm)],[f6])). 0.15/0.44 thf(f6,axiom,( 0.15/0.44 ((^[X0 : $i, X1 : $i] : (sup @ (union @ (singleton @ X0) @ (singleton @ X1)))) = addition)), 0.15/0.44 file('/export/starexec/sandbox2/tmp/tmp.GrvsVE664G/E---3.1_2520289.p',addition_def)). 0.15/0.44 thf(f52,plain,( 0.15/0.44 ((addition @ sK0 @ sK0) != sK0)), 0.15/0.44 inference(cnf_transformation,[status(thm)],[f37])). 0.15/0.44 thf(f37,plain,( 0.15/0.44 ((addition @ sK0 @ sK0) != sK0)), 0.15/0.44 inference(skolemisation,[status(esa),new_symbols(skolem,[sK0])],[f34,f36])). 0.15/0.44 thf(f36,plain,( 0.15/0.44 ? [X0 : $i] : ((addition @ X0 @ X0) != X0) => ((addition @ sK0 @ sK0) != sK0)), 0.15/0.44 introduced(definition,[],[choice_axiom])). 0.15/0.44 thf(f34,plain,( 0.15/0.44 ? [X0 : $i] : ((addition @ X0 @ X0) != X0)), 0.15/0.44 inference(ennf_transformation,[status(thm)],[f32])). 0.15/0.44 thf(f32,plain,( 0.15/0.44 ~! [X0 : $i] : ((addition @ X0 @ X0) = X0)), 0.15/0.44 inference(rectify,[status(thm)],[f16])). 0.15/0.44 thf(f16,negated_conjecture,( 0.15/0.44 ~! [X5 : $i] : ((addition @ X5 @ X5) = X5)), 0.15/0.44 inference(negated_conjecture,[status(cth)],[f15])). 0.15/0.44 thf(f15,conjecture,( 0.15/0.44 ! [X5 : $i] : ((addition @ X5 @ X5) = X5)), 0.15/0.44 file('/export/starexec/sandbox2/tmp/tmp.GrvsVE664G/E---3.1_2520289.p',addition_idemp)). 0.15/0.44 % SZS output end Proof for E---3.1_2520289 0.15/0.44 % (2520355)------------------------------ 0.15/0.44 % (2520355)Version: Vampire 4.8 (commit 7b44b1c2f on 2025-07-15 09:50:17 +0100) 0.15/0.44 % (2520355)Termination reason: Refutation 0.15/0.44 0.15/0.44 % (2520355)Memory used [KB]: 5500 0.15/0.44 % (2520355)Time elapsed: 0.007 s 0.15/0.44 % (2520355)Instructions burned: 5 (million) 0.15/0.44 % (2520355)------------------------------ 0.15/0.44 % (2520355)------------------------------ 0.15/0.44 % (2520352)Success in time 0.016 s 0.15/0.44 EOF