TSTP Solution File: SET880+1 by ePrincess---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : ePrincess---1.0
% Problem  : SET880+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 00:22:53 EDT 2022

% Result   : Theorem 1.81s 1.15s
% Output   : Proof 2.72s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : SET880+1 : TPTP v8.1.0. Released v3.2.0.
% 0.03/0.12  % 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 04:06:01 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.59/0.58          ____       _                          
% 0.59/0.58    ___  / __ \_____(_)___  ________  __________
% 0.59/0.58   / _ \/ /_/ / ___/ / __ \/ ___/ _ \/ ___/ ___/
% 0.59/0.58  /  __/ ____/ /  / / / / / /__/  __(__  |__  ) 
% 0.59/0.58  \___/_/   /_/  /_/_/ /_/\___/\___/____/____/  
% 0.59/0.58  
% 0.59/0.58  A Theorem Prover for First-Order Logic
% 0.59/0.58  (ePrincess v.1.0)
% 0.59/0.58  
% 0.59/0.58  (c) Philipp Rümmer, 2009-2015
% 0.59/0.58  (c) Peter Backeman, 2014-2015
% 0.59/0.58  (contributions by Angelo Brillout, Peter Baumgartner)
% 0.59/0.58  Free software under GNU Lesser General Public License (LGPL).
% 0.59/0.58  Bug reports to peter@backeman.se
% 0.59/0.58  
% 0.59/0.58  For more information, visit http://user.uu.se/~petba168/breu/
% 0.59/0.58  
% 0.59/0.58  Loading /export/starexec/sandbox/benchmark/theBenchmark.p ...
% 0.59/0.63  Prover 0: Options:  -triggersInConjecture -genTotalityAxioms -tightFunctionScopes -clausifier=simple -reverseFunctionalityPropagation +boolFunsAsPreds -triggerStrategy=allMaximal -resolutionMethod=nonUnifying +ignoreQuantifiers -generateTriggers=all
% 1.32/0.89  Prover 0: Preprocessing ...
% 1.67/1.02  Prover 0: Warning: ignoring some quantifiers
% 1.67/1.04  Prover 0: Constructing countermodel ...
% 1.81/1.14  Prover 0: proved (515ms)
% 1.81/1.15  
% 1.81/1.15  No countermodel exists, formula is valid
% 1.81/1.15  % SZS status Theorem for theBenchmark
% 1.81/1.15  
% 1.81/1.15  Generating proof ... Warning: ignoring some quantifiers
% 2.59/1.32  found it (size 6)
% 2.59/1.32  
% 2.59/1.32  % SZS output start Proof for theBenchmark
% 2.59/1.32  Assumed formulas after preprocessing and simplification: 
% 2.59/1.32  | (0)  ? [v0] :  ? [v1] :  ? [v2] :  ? [v3] :  ? [v4] :  ? [v5] : ( ~ (v1 = v0) & set_difference(v2, v3) = empty_set & singleton(v1) = v3 & singleton(v0) = v2 & empty(v5) & empty(empty_set) &  ~ empty(v4) &  ! [v6] :  ! [v7] :  ! [v8] :  ! [v9] : (v9 = empty_set |  ~ (set_difference(v8, v7) = v9) |  ~ (singleton(v6) = v8) |  ~ in(v6, v7)) &  ! [v6] :  ! [v7] :  ! [v8] :  ! [v9] : (v7 = v6 |  ~ (set_difference(v9, v8) = v7) |  ~ (set_difference(v9, v8) = v6)) &  ! [v6] :  ! [v7] :  ! [v8] : (v8 = v6 |  ~ (singleton(v6) = v7) |  ~ in(v8, v7)) &  ! [v6] :  ! [v7] :  ! [v8] : (v7 = v6 |  ~ (singleton(v8) = v7) |  ~ (singleton(v8) = v6)) &  ! [v6] :  ! [v7] :  ! [v8] : ( ~ (set_difference(v8, v7) = empty_set) |  ~ (singleton(v6) = v8) | in(v6, v7)) &  ? [v6] :  ! [v7] :  ! [v8] : (v8 = v6 |  ~ (singleton(v7) = v8) |  ? [v9] : (( ~ (v9 = v7) |  ~ in(v7, v6)) & (v9 = v7 | in(v9, v6)))) &  ! [v6] :  ! [v7] : ( ~ (singleton(v6) = v7) | in(v6, v7)) &  ! [v6] :  ! [v7] : ( ~ in(v7, v6) |  ~ in(v6, v7)))
% 2.59/1.35  | 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 yields:
% 2.59/1.35  | (1)  ~ (all_0_4_4 = all_0_5_5) & set_difference(all_0_3_3, all_0_2_2) = empty_set & singleton(all_0_4_4) = all_0_2_2 & singleton(all_0_5_5) = all_0_3_3 & empty(all_0_0_0) & empty(empty_set) &  ~ empty(all_0_1_1) &  ! [v0] :  ! [v1] :  ! [v2] :  ! [v3] : (v3 = empty_set |  ~ (set_difference(v2, v1) = v3) |  ~ (singleton(v0) = v2) |  ~ in(v0, v1)) &  ! [v0] :  ! [v1] :  ! [v2] :  ! [v3] : (v1 = v0 |  ~ (set_difference(v3, v2) = v1) |  ~ (set_difference(v3, v2) = v0)) &  ! [v0] :  ! [v1] :  ! [v2] : (v2 = v0 |  ~ (singleton(v0) = v1) |  ~ in(v2, v1)) &  ! [v0] :  ! [v1] :  ! [v2] : (v1 = v0 |  ~ (singleton(v2) = v1) |  ~ (singleton(v2) = v0)) &  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (set_difference(v2, v1) = empty_set) |  ~ (singleton(v0) = v2) | in(v0, v1)) &  ? [v0] :  ! [v1] :  ! [v2] : (v2 = v0 |  ~ (singleton(v1) = v2) |  ? [v3] : (( ~ (v3 = v1) |  ~ in(v1, v0)) & (v3 = v1 | in(v3, v0)))) &  ! [v0] :  ! [v1] : ( ~ (singleton(v0) = v1) | in(v0, v1)) &  ! [v0] :  ! [v1] : ( ~ in(v1, v0) |  ~ in(v0, v1))
% 2.59/1.35  |
% 2.59/1.35  | Applying alpha-rule on (1) yields:
% 2.59/1.35  | (2) set_difference(all_0_3_3, all_0_2_2) = empty_set
% 2.59/1.36  | (3)  ! [v0] :  ! [v1] :  ! [v2] : (v1 = v0 |  ~ (singleton(v2) = v1) |  ~ (singleton(v2) = v0))
% 2.59/1.36  | (4)  ! [v0] :  ! [v1] : ( ~ (singleton(v0) = v1) | in(v0, v1))
% 2.59/1.36  | (5) singleton(all_0_4_4) = all_0_2_2
% 2.59/1.36  | (6)  ! [v0] :  ! [v1] : ( ~ in(v1, v0) |  ~ in(v0, v1))
% 2.59/1.36  | (7)  ~ empty(all_0_1_1)
% 2.59/1.36  | (8) empty(empty_set)
% 2.59/1.36  | (9)  ~ (all_0_4_4 = all_0_5_5)
% 2.59/1.36  | (10)  ! [v0] :  ! [v1] :  ! [v2] : ( ~ (set_difference(v2, v1) = empty_set) |  ~ (singleton(v0) = v2) | in(v0, v1))
% 2.59/1.36  | (11)  ! [v0] :  ! [v1] :  ! [v2] :  ! [v3] : (v1 = v0 |  ~ (set_difference(v3, v2) = v1) |  ~ (set_difference(v3, v2) = v0))
% 2.59/1.36  | (12)  ! [v0] :  ! [v1] :  ! [v2] : (v2 = v0 |  ~ (singleton(v0) = v1) |  ~ in(v2, v1))
% 2.59/1.36  | (13)  ? [v0] :  ! [v1] :  ! [v2] : (v2 = v0 |  ~ (singleton(v1) = v2) |  ? [v3] : (( ~ (v3 = v1) |  ~ in(v1, v0)) & (v3 = v1 | in(v3, v0))))
% 2.59/1.36  | (14) empty(all_0_0_0)
% 2.59/1.36  | (15)  ! [v0] :  ! [v1] :  ! [v2] :  ! [v3] : (v3 = empty_set |  ~ (set_difference(v2, v1) = v3) |  ~ (singleton(v0) = v2) |  ~ in(v0, v1))
% 2.59/1.36  | (16) singleton(all_0_5_5) = all_0_3_3
% 2.59/1.36  |
% 2.59/1.36  | Instantiating formula (10) with all_0_3_3, all_0_2_2, all_0_5_5 and discharging atoms set_difference(all_0_3_3, all_0_2_2) = empty_set, singleton(all_0_5_5) = all_0_3_3, yields:
% 2.59/1.36  | (17) in(all_0_5_5, all_0_2_2)
% 2.59/1.36  |
% 2.59/1.36  | Instantiating formula (12) with all_0_5_5, all_0_2_2, all_0_4_4 and discharging atoms singleton(all_0_4_4) = all_0_2_2, in(all_0_5_5, all_0_2_2), yields:
% 2.59/1.36  | (18) all_0_4_4 = all_0_5_5
% 2.59/1.36  |
% 2.59/1.36  | Equations (18) can reduce 9 to:
% 2.59/1.36  | (19) $false
% 2.59/1.36  |
% 2.72/1.36  |-The branch is then unsatisfiable
% 2.72/1.36  % SZS output end Proof for theBenchmark
% 2.72/1.37  
% 2.72/1.37  777ms
%------------------------------------------------------------------------------