TSTP Solution File: SET891+1 by ePrincess---1.0

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%------------------------------------------------------------------------------
% File     : ePrincess---1.0
% Problem  : SET891+1 : TPTP v8.1.0. Released v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : ePrincess-casc -timeout=%d %s

% Computer : n025.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 600s
% DateTime : Tue Jul 19 00:22:57 EDT 2022

% Result   : Theorem 1.91s 1.13s
% Output   : Proof 2.79s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.11  % Problem  : SET891+1 : TPTP v8.1.0. Released v3.2.0.
% 0.07/0.12  % Command  : ePrincess-casc -timeout=%d %s
% 0.12/0.33  % Computer : n025.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 600
% 0.12/0.33  % DateTime : Sun Jul 10 16:04:31 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.18/0.57          ____       _                          
% 0.18/0.57    ___  / __ \_____(_)___  ________  __________
% 0.18/0.57   / _ \/ /_/ / ___/ / __ \/ ___/ _ \/ ___/ ___/
% 0.18/0.57  /  __/ ____/ /  / / / / / /__/  __(__  |__  ) 
% 0.18/0.57  \___/_/   /_/  /_/_/ /_/\___/\___/____/____/  
% 0.18/0.57  
% 0.18/0.57  A Theorem Prover for First-Order Logic
% 0.18/0.57  (ePrincess v.1.0)
% 0.18/0.57  
% 0.18/0.57  (c) Philipp Rümmer, 2009-2015
% 0.18/0.57  (c) Peter Backeman, 2014-2015
% 0.18/0.57  (contributions by Angelo Brillout, Peter Baumgartner)
% 0.18/0.57  Free software under GNU Lesser General Public License (LGPL).
% 0.18/0.57  Bug reports to peter@backeman.se
% 0.18/0.57  
% 0.18/0.57  For more information, visit http://user.uu.se/~petba168/breu/
% 0.18/0.57  
% 0.18/0.57  Loading /export/starexec/sandbox/benchmark/theBenchmark.p ...
% 0.69/0.65  Prover 0: Options:  -triggersInConjecture -genTotalityAxioms -tightFunctionScopes -clausifier=simple -reverseFunctionalityPropagation +boolFunsAsPreds -triggerStrategy=allMaximal -resolutionMethod=nonUnifying +ignoreQuantifiers -generateTriggers=all
% 1.36/0.88  Prover 0: Preprocessing ...
% 1.68/1.04  Prover 0: Constructing countermodel ...
% 1.91/1.13  Prover 0: proved (482ms)
% 1.91/1.13  
% 1.91/1.13  No countermodel exists, formula is valid
% 1.91/1.13  % SZS status Theorem for theBenchmark
% 1.91/1.13  
% 1.91/1.13  Generating proof ... found it (size 16)
% 2.60/1.34  
% 2.60/1.34  % SZS output start Proof for theBenchmark
% 2.60/1.34  Assumed formulas after preprocessing and simplification: 
% 2.60/1.34  | (0)  ? [v0] :  ? [v1] :  ? [v2] :  ? [v3] :  ? [v4] :  ? [v5] :  ? [v6] :  ? [v7] :  ? [v8] : ( ~ (v6 = v5) & singleton(v1) = v3 & singleton(v0) = v2 & union(v4) = v5 & unordered_pair(v2, v3) = v4 & unordered_pair(v0, v1) = v6 & empty(v8) &  ~ empty(v7) &  ! [v9] :  ! [v10] :  ! [v11] :  ! [v12] :  ! [v13] : ( ~ (singleton(v10) = v12) |  ~ (singleton(v9) = v11) |  ~ (set_union2(v11, v12) = v13) | unordered_pair(v9, v10) = v13) &  ! [v9] :  ! [v10] :  ! [v11] :  ! [v12] : (v10 = v9 |  ~ (set_union2(v12, v11) = v10) |  ~ (set_union2(v12, v11) = v9)) &  ! [v9] :  ! [v10] :  ! [v11] :  ! [v12] : (v10 = v9 |  ~ (unordered_pair(v12, v11) = v10) |  ~ (unordered_pair(v12, v11) = v9)) &  ! [v9] :  ! [v10] :  ! [v11] : (v10 = v9 |  ~ (singleton(v11) = v10) |  ~ (singleton(v11) = v9)) &  ! [v9] :  ! [v10] :  ! [v11] : (v10 = v9 |  ~ (union(v11) = v10) |  ~ (union(v11) = v9)) &  ! [v9] :  ! [v10] :  ! [v11] : ( ~ (set_union2(v10, v9) = v11) |  ~ empty(v11) | empty(v9)) &  ! [v9] :  ! [v10] :  ! [v11] : ( ~ (set_union2(v10, v9) = v11) | set_union2(v9, v10) = v11) &  ! [v9] :  ! [v10] :  ! [v11] : ( ~ (set_union2(v9, v10) = v11) |  ~ empty(v11) | empty(v9)) &  ! [v9] :  ! [v10] :  ! [v11] : ( ~ (set_union2(v9, v10) = v11) | set_union2(v10, v9) = v11) &  ! [v9] :  ! [v10] :  ! [v11] : ( ~ (set_union2(v9, v10) = v11) |  ? [v12] : (union(v12) = v11 & unordered_pair(v9, v10) = v12)) &  ! [v9] :  ! [v10] :  ! [v11] : ( ~ (unordered_pair(v10, v9) = v11) | unordered_pair(v9, v10) = v11) &  ! [v9] :  ! [v10] :  ! [v11] : ( ~ (unordered_pair(v9, v10) = v11) | unordered_pair(v10, v9) = v11) &  ! [v9] :  ! [v10] :  ! [v11] : ( ~ (unordered_pair(v9, v10) = v11) |  ? [v12] :  ? [v13] : (singleton(v10) = v13 & singleton(v9) = v12 & set_union2(v12, v13) = v11)) &  ! [v9] :  ! [v10] :  ! [v11] : ( ~ (unordered_pair(v9, v10) = v11) |  ? [v12] : (union(v11) = v12 & set_union2(v9, v10) = v12)) &  ! [v9] :  ! [v10] : (v10 = v9 |  ~ (set_union2(v9, v9) = v10)))
% 2.79/1.38  | Instantiating (0) with all_0_0_0, all_0_1_1, all_0_2_2, all_0_3_3, all_0_4_4, all_0_5_5, all_0_6_6, all_0_7_7, all_0_8_8 yields:
% 2.79/1.38  | (1)  ~ (all_0_2_2 = all_0_3_3) & singleton(all_0_7_7) = all_0_5_5 & singleton(all_0_8_8) = all_0_6_6 & union(all_0_4_4) = all_0_3_3 & unordered_pair(all_0_6_6, all_0_5_5) = all_0_4_4 & unordered_pair(all_0_8_8, all_0_7_7) = all_0_2_2 & empty(all_0_0_0) &  ~ empty(all_0_1_1) &  ! [v0] :  ! [v1] :  ! [v2] :  ! [v3] :  ! [v4] : ( ~ (singleton(v1) = v3) |  ~ (singleton(v0) = v2) |  ~ (set_union2(v2, v3) = v4) | unordered_pair(v0, v1) = v4) &  ! [v0] :  ! [v1] :  ! [v2] :  ! [v3] : (v1 = v0 |  ~ (set_union2(v3, v2) = v1) |  ~ (set_union2(v3, v2) = v0)) &  ! [v0] :  ! [v1] :  ! [v2] :  ! [v3] : (v1 = v0 |  ~ (unordered_pair(v3, v2) = v1) |  ~ (unordered_pair(v3, v2) = v0)) &  ! [v0] :  ! [v1] :  ! [v2] : (v1 = v0 |  ~ (singleton(v2) = v1) |  ~ (singleton(v2) = v0)) &  ! [v0] :  ! [v1] :  ! [v2] : (v1 = v0 |  ~ (union(v2) = v1) |  ~ (union(v2) = v0)) &  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (set_union2(v1, v0) = v2) |  ~ empty(v2) | empty(v0)) &  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (set_union2(v1, v0) = v2) | set_union2(v0, v1) = v2) &  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (set_union2(v0, v1) = v2) |  ~ empty(v2) | empty(v0)) &  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (set_union2(v0, v1) = v2) | set_union2(v1, v0) = v2) &  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (set_union2(v0, v1) = v2) |  ? [v3] : (union(v3) = v2 & unordered_pair(v0, v1) = v3)) &  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (unordered_pair(v1, v0) = v2) | unordered_pair(v0, v1) = v2) &  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (unordered_pair(v0, v1) = v2) | unordered_pair(v1, v0) = v2) &  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (unordered_pair(v0, v1) = v2) |  ? [v3] :  ? [v4] : (singleton(v1) = v4 & singleton(v0) = v3 & set_union2(v3, v4) = v2)) &  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (unordered_pair(v0, v1) = v2) |  ? [v3] : (union(v2) = v3 & set_union2(v0, v1) = v3)) &  ! [v0] :  ! [v1] : (v1 = v0 |  ~ (set_union2(v0, v0) = v1))
% 2.79/1.39  |
% 2.79/1.39  | Applying alpha-rule on (1) yields:
% 2.79/1.39  | (2) singleton(all_0_8_8) = all_0_6_6
% 2.79/1.39  | (3)  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (unordered_pair(v0, v1) = v2) |  ? [v3] : (union(v2) = v3 & set_union2(v0, v1) = v3))
% 2.79/1.39  | (4)  ! [v0] :  ! [v1] :  ! [v2] :  ! [v3] : (v1 = v0 |  ~ (unordered_pair(v3, v2) = v1) |  ~ (unordered_pair(v3, v2) = v0))
% 2.79/1.39  | (5) unordered_pair(all_0_8_8, all_0_7_7) = all_0_2_2
% 2.79/1.39  | (6)  ! [v0] :  ! [v1] :  ! [v2] : (v1 = v0 |  ~ (union(v2) = v1) |  ~ (union(v2) = v0))
% 2.79/1.39  | (7)  ! [v0] :  ! [v1] :  ! [v2] :  ! [v3] :  ! [v4] : ( ~ (singleton(v1) = v3) |  ~ (singleton(v0) = v2) |  ~ (set_union2(v2, v3) = v4) | unordered_pair(v0, v1) = v4)
% 2.79/1.39  | (8)  ! [v0] :  ! [v1] : (v1 = v0 |  ~ (set_union2(v0, v0) = v1))
% 2.79/1.39  | (9) union(all_0_4_4) = all_0_3_3
% 2.79/1.39  | (10) empty(all_0_0_0)
% 2.79/1.39  | (11)  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (set_union2(v1, v0) = v2) |  ~ empty(v2) | empty(v0))
% 2.79/1.39  | (12)  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (unordered_pair(v0, v1) = v2) | unordered_pair(v1, v0) = v2)
% 2.79/1.39  | (13)  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (unordered_pair(v1, v0) = v2) | unordered_pair(v0, v1) = v2)
% 2.79/1.39  | (14) singleton(all_0_7_7) = all_0_5_5
% 2.79/1.39  | (15)  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (unordered_pair(v0, v1) = v2) |  ? [v3] :  ? [v4] : (singleton(v1) = v4 & singleton(v0) = v3 & set_union2(v3, v4) = v2))
% 2.79/1.39  | (16)  ~ empty(all_0_1_1)
% 2.79/1.39  | (17)  ! [v0] :  ! [v1] :  ! [v2] : (v1 = v0 |  ~ (singleton(v2) = v1) |  ~ (singleton(v2) = v0))
% 2.79/1.39  | (18)  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (set_union2(v0, v1) = v2) |  ~ empty(v2) | empty(v0))
% 2.79/1.39  | (19)  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (set_union2(v0, v1) = v2) | set_union2(v1, v0) = v2)
% 2.79/1.39  | (20)  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (set_union2(v1, v0) = v2) | set_union2(v0, v1) = v2)
% 2.79/1.39  | (21) unordered_pair(all_0_6_6, all_0_5_5) = all_0_4_4
% 2.79/1.39  | (22)  ~ (all_0_2_2 = all_0_3_3)
% 2.79/1.39  | (23)  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (set_union2(v0, v1) = v2) |  ? [v3] : (union(v3) = v2 & unordered_pair(v0, v1) = v3))
% 2.79/1.39  | (24)  ! [v0] :  ! [v1] :  ! [v2] :  ! [v3] : (v1 = v0 |  ~ (set_union2(v3, v2) = v1) |  ~ (set_union2(v3, v2) = v0))
% 2.79/1.39  |
% 2.79/1.39  | Instantiating formula (3) with all_0_4_4, all_0_5_5, all_0_6_6 and discharging atoms unordered_pair(all_0_6_6, all_0_5_5) = all_0_4_4, yields:
% 2.79/1.39  | (25)  ? [v0] : (union(all_0_4_4) = v0 & set_union2(all_0_6_6, all_0_5_5) = v0)
% 2.79/1.39  |
% 2.79/1.39  | Instantiating formula (15) with all_0_2_2, all_0_7_7, all_0_8_8 and discharging atoms unordered_pair(all_0_8_8, all_0_7_7) = all_0_2_2, yields:
% 2.79/1.39  | (26)  ? [v0] :  ? [v1] : (singleton(all_0_7_7) = v1 & singleton(all_0_8_8) = v0 & set_union2(v0, v1) = all_0_2_2)
% 2.79/1.39  |
% 2.79/1.39  | Instantiating (25) with all_11_0_10 yields:
% 2.79/1.39  | (27) union(all_0_4_4) = all_11_0_10 & set_union2(all_0_6_6, all_0_5_5) = all_11_0_10
% 2.79/1.39  |
% 2.79/1.40  | Applying alpha-rule on (27) yields:
% 2.79/1.40  | (28) union(all_0_4_4) = all_11_0_10
% 2.79/1.40  | (29) set_union2(all_0_6_6, all_0_5_5) = all_11_0_10
% 2.79/1.40  |
% 2.79/1.40  | Instantiating (26) with all_13_0_11, all_13_1_12 yields:
% 2.79/1.40  | (30) singleton(all_0_7_7) = all_13_0_11 & singleton(all_0_8_8) = all_13_1_12 & set_union2(all_13_1_12, all_13_0_11) = all_0_2_2
% 2.79/1.40  |
% 2.79/1.40  | Applying alpha-rule on (30) yields:
% 2.79/1.40  | (31) singleton(all_0_7_7) = all_13_0_11
% 2.79/1.40  | (32) singleton(all_0_8_8) = all_13_1_12
% 2.79/1.40  | (33) set_union2(all_13_1_12, all_13_0_11) = all_0_2_2
% 2.79/1.40  |
% 2.79/1.40  | Instantiating formula (17) with all_0_7_7, all_13_0_11, all_0_5_5 and discharging atoms singleton(all_0_7_7) = all_13_0_11, singleton(all_0_7_7) = all_0_5_5, yields:
% 2.79/1.40  | (34) all_13_0_11 = all_0_5_5
% 2.79/1.40  |
% 2.79/1.40  | Instantiating formula (17) with all_0_8_8, all_13_1_12, all_0_6_6 and discharging atoms singleton(all_0_8_8) = all_13_1_12, singleton(all_0_8_8) = all_0_6_6, yields:
% 2.79/1.40  | (35) all_13_1_12 = all_0_6_6
% 2.79/1.40  |
% 2.79/1.40  | Instantiating formula (6) with all_0_4_4, all_11_0_10, all_0_3_3 and discharging atoms union(all_0_4_4) = all_11_0_10, union(all_0_4_4) = all_0_3_3, yields:
% 2.79/1.40  | (36) all_11_0_10 = all_0_3_3
% 2.79/1.40  |
% 2.79/1.40  | From (35)(34) and (33) follows:
% 2.79/1.40  | (37) set_union2(all_0_6_6, all_0_5_5) = all_0_2_2
% 2.79/1.40  |
% 2.79/1.40  | From (36) and (29) follows:
% 2.79/1.40  | (38) set_union2(all_0_6_6, all_0_5_5) = all_0_3_3
% 2.79/1.40  |
% 2.79/1.40  | Instantiating formula (24) with all_0_6_6, all_0_5_5, all_0_3_3, all_0_2_2 and discharging atoms set_union2(all_0_6_6, all_0_5_5) = all_0_2_2, set_union2(all_0_6_6, all_0_5_5) = all_0_3_3, yields:
% 2.79/1.40  | (39) all_0_2_2 = all_0_3_3
% 2.79/1.40  |
% 2.79/1.40  | Equations (39) can reduce 22 to:
% 2.79/1.40  | (40) $false
% 2.79/1.40  |
% 2.79/1.40  |-The branch is then unsatisfiable
% 2.79/1.40  % SZS output end Proof for theBenchmark
% 2.79/1.40  
% 2.79/1.40  813ms
%------------------------------------------------------------------------------