%------------------------------------------------------------------------------
% File : Leo-III---1.8.0
% Problem : RNG086+2 : TPTP v9.3.1. Released v4.0.0.
% Transfm : none
% Format : tptp:raw
% Command : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39
% Computer : n005.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 : Sun Sep 27 08:25:25 AM UTC 2026
% Result : Theorem 9.34s 3.82s
% Output : Refutation 9.34s
% Verified :
% SZS Type : Refutation
% Derivation depth : 10
% Number of leaves : 6
% Syntax : Number of formulae : 23 ( 9 unt; 0 typ; 4 def)
% Number of atoms : 84 ( 27 equ; 0 cnn)
% Maximal formula atoms : 9 ( 3 avg)
% Number of connectives : 245 ( 20 ~; 11 |; 46 &; 168 @)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 12 ( 6 avg)
% Number of types : 2 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 16 ( 13 usr; 11 con; 0-2 aty)
% Number of variables : 34 ( 0 ^; 8 !; 22 ?; 34 :)
% ( 0 !>; 0 ?*; 0 @-; 4 @+)
% Comments :
%------------------------------------------------------------------------------
thf(sdtpldt1_decl,type,
sdtpldt1: $i > $i > $i ).
thf(aElementOf0_decl,type,
aElementOf0: $i > $i > $o ).
thf(sdtpldt0_decl,type,
sdtpldt0: $i > $i > $i ).
thf(aElement0_decl,type,
aElement0: $i > $o ).
thf(xI_decl,type,
xI: $i ).
thf(xJ_decl,type,
xJ: $i ).
thf(xx_decl,type,
xx: $i ).
thf(xy_decl,type,
xy: $i ).
thf(xz_decl,type,
xz: $i ).
thf(sk1_decl,type,
sk1: $i ).
thf(sk2_decl,type,
sk2: $i ).
thf(sk3_decl,type,
sk3: $i ).
thf(sk4_decl,type,
sk4: $i ).
thf(sk1_def,definition,
( sk1
= ( @+[A: $i] :
( ? [B: $i] :
( ( ( B @ ( A @ sdtpldt0 ) )
= xx )
& ( xJ @ ( B @ aElementOf0 ) ) )
& ( xI @ ( A @ aElementOf0 ) ) ) ) ) ).
thf(sk2_def,definition,
( sk2
= ( @+[A: $i] :
( ( ( A @ ( sk1 @ sdtpldt0 ) )
= xx )
& ( xJ @ ( A @ aElementOf0 ) ) ) ) ) ).
thf(sk3_def,definition,
( sk3
= ( @+[A: $i] :
( ? [B: $i] :
( ( ( B @ ( A @ sdtpldt0 ) )
= xy )
& ( xJ @ ( B @ aElementOf0 ) ) )
& ( xI @ ( A @ aElementOf0 ) ) ) ) ) ).
thf(sk4_def,definition,
( sk4
= ( @+[A: $i] :
( ( ( A @ ( sk3 @ sdtpldt0 ) )
= xy )
& ( xJ @ ( A @ aElementOf0 ) ) ) ) ) ).
thf(17,axiom,
( ( xz @ aElement0 )
& ( xJ @ ( xI @ sdtpldt1 ) @ ( xy @ aElementOf0 ) )
& ? [A: $i,B: $i] :
( ( ( B @ ( A @ sdtpldt0 ) )
= xy )
& ( xJ @ ( B @ aElementOf0 ) )
& ( xI @ ( A @ aElementOf0 ) ) )
& ( xJ @ ( xI @ sdtpldt1 ) @ ( xx @ aElementOf0 ) )
& ? [A: $i,B: $i] :
( ( ( B @ ( A @ sdtpldt0 ) )
= xx )
& ( xJ @ ( B @ aElementOf0 ) )
& ( xI @ ( A @ aElementOf0 ) ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',m__901) ).
thf(77,plain,
( ( xz @ aElement0 )
& ( xJ @ ( xI @ sdtpldt1 ) @ ( xy @ aElementOf0 ) )
& ? [A: $i,B: $i] :
( ( ( B @ ( A @ sdtpldt0 ) )
= xy )
& ( xJ @ ( B @ aElementOf0 ) )
& ( xI @ ( A @ aElementOf0 ) ) )
& ( xJ @ ( xI @ sdtpldt1 ) @ ( xx @ aElementOf0 ) )
& ? [A: $i,B: $i] :
( ( ( B @ ( A @ sdtpldt0 ) )
= xx )
& ( xJ @ ( B @ aElementOf0 ) )
& ( xI @ ( A @ aElementOf0 ) ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[17]) ).
thf(78,plain,
( ( xz @ aElement0 )
& ( xJ @ ( xI @ sdtpldt1 ) @ ( xy @ aElementOf0 ) )
& ? [A: $i] :
( ? [B: $i] :
( ( ( B @ ( A @ sdtpldt0 ) )
= xy )
& ( xJ @ ( B @ aElementOf0 ) ) )
& ( xI @ ( A @ aElementOf0 ) ) )
& ( xJ @ ( xI @ sdtpldt1 ) @ ( xx @ aElementOf0 ) )
& ? [A: $i] :
( ? [B: $i] :
( ( ( B @ ( A @ sdtpldt0 ) )
= xx )
& ( xJ @ ( B @ aElementOf0 ) ) )
& ( xI @ ( A @ aElementOf0 ) ) ) ),
inference(miniscope,[status(thm)],[77]) ).
thf(79,plain,
( ( xz @ aElement0 )
& ( xJ @ ( xI @ sdtpldt1 ) @ ( xy @ aElementOf0 ) )
& ( ( sk4 @ ( sk3 @ sdtpldt0 ) )
= xy )
& ( xJ @ ( sk4 @ aElementOf0 ) )
& ( xI @ ( sk3 @ aElementOf0 ) )
& ( xJ @ ( xI @ sdtpldt1 ) @ ( xx @ aElementOf0 ) )
& ( ( sk2 @ ( sk1 @ sdtpldt0 ) )
= xx )
& ( xJ @ ( sk2 @ aElementOf0 ) )
& ( xI @ ( sk1 @ aElementOf0 ) ) ),
inference(cnf,[status(esa)],[78]) ).
thf(86,plain,
( ( sk2 @ ( sk1 @ sdtpldt0 ) )
= xx ),
inference(cnfConj,[status(thm)],[79]) ).
thf(89,plain,
( ( sk2 @ ( sk1 @ sdtpldt0 ) )
= xx ),
inference(lifteq,[status(thm)],[86]) ).
thf(1,conjecture,
? [A: $i,B: $i] :
( ( xx
= ( B @ ( A @ sdtpldt0 ) ) )
& ( xJ @ ( B @ aElementOf0 ) )
& ( xI @ ( A @ aElementOf0 ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',m__) ).
thf(2,negated_conjecture,
~ ? [A: $i,B: $i] :
( ( xx
= ( B @ ( A @ sdtpldt0 ) ) )
& ( xJ @ ( B @ aElementOf0 ) )
& ( xI @ ( A @ aElementOf0 ) ) ),
inference(neg_conjecture,[status(cth)],[1]) ).
thf(29,plain,
~ ? [A: $i,B: $i] :
( ( xx
= ( B @ ( A @ sdtpldt0 ) ) )
& ( xJ @ ( B @ aElementOf0 ) )
& ( xI @ ( A @ aElementOf0 ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).
thf(30,plain,
~ ? [A: $i] :
( ? [B: $i] :
( ( xx
= ( B @ ( A @ sdtpldt0 ) ) )
& ( xJ @ ( B @ aElementOf0 ) ) )
& ( xI @ ( A @ aElementOf0 ) ) ),
inference(miniscope,[status(thm)],[29]) ).
thf(31,plain,
! [B: $i,A: $i] :
( ( xx
!= ( B @ ( A @ sdtpldt0 ) ) )
| ~ ( xJ @ ( B @ aElementOf0 ) )
| ~ ( xI @ ( A @ aElementOf0 ) ) ),
inference(cnf,[status(esa)],[30]) ).
thf(32,plain,
! [B: $i,A: $i] :
( ~ ( xJ @ ( B @ aElementOf0 ) )
| ~ ( xI @ ( A @ aElementOf0 ) )
| ( ( B @ ( A @ sdtpldt0 ) )
!= xx ) ),
inference(lifteq,[status(thm)],[31]) ).
thf(364,plain,
! [B: $i,A: $i] :
( ( ( sk2 @ ( sk1 @ sdtpldt0 ) )
!= ( B @ ( A @ sdtpldt0 ) ) )
| ~ ( xJ @ ( B @ aElementOf0 ) )
| ~ ( xI @ ( A @ aElementOf0 ) )
| ( xx != xx ) ),
inference(paramod_ordered,[status(thm)],[89,32]) ).
thf(365,plain,
! [B: $i,A: $i] :
( ( ( sk2 @ ( sk1 @ sdtpldt0 ) )
!= ( B @ ( A @ sdtpldt0 ) ) )
| ~ ( xJ @ ( B @ aElementOf0 ) )
| ~ ( xI @ ( A @ aElementOf0 ) ) ),
inference(simp,[status(thm)],[364]) ).
thf(366,plain,
( ~ ( xJ @ ( sk2 @ aElementOf0 ) )
| ~ ( xI @ ( sk1 @ aElementOf0 ) ) ),
inference(pattern_uni,[status(thm)],[365:[bind(A,$thf( sk1 )),bind(B,$thf( sk2 ))]]) ).
thf(81,plain,
xJ @ ( sk2 @ aElementOf0 ),
inference(cnfConj,[status(thm)],[79]) ).
thf(88,plain,
xI @ ( sk1 @ aElementOf0 ),
inference(cnfConj,[status(thm)],[79]) ).
thf(539,plain,
( ~ $true
| ~ $true ),
inference(rewrite,[status(thm)],[366,81,88]) ).
thf(540,plain,
$false,
inference(simp,[status(thm)],[539]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : RNG086+2 : TPTP v9.3.1. Released v4.0.0.
% 0.00/0.08 % Command : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39
% 0.14/0.42 % Computer : n005.cluster.edu
% 0.14/0.42 % Model : x86_64 x86_64
% 0.14/0.42 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.42 % Memory : 8046.5625MB
% 0.14/0.42 % OS : Linux 6.8.0-71-generic
% 0.14/0.42 % CPULimit : 300
% 0.14/0.42 % WCLimit : 300
% 0.14/0.42 % DateTime : Sat Sep 26 06:01:16 UTC 2026
% 0.14/0.42 % CPUTime :
% 0.14/0.42 Running java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox/solver/bin/leo3.jar /export/starexec/sandbox/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox/solver/bin/externals/eprover --instantiate 39
% 0.86/0.99 % [INFO] Parsing problem /export/starexec/sandbox/benchmark/theBenchmark.p ...
% 1.43/1.21 % [INFO] Parsing done (207ms).
% 1.43/1.22 % [INFO] Running in sequential loop mode.
% 2.20/1.61 % [INFO] eprover registered as external prover.
% 2.20/1.62 % [INFO] Scanning for conjecture ...
% 2.39/1.71 % [INFO] Definitions in FOF are currently treated as axioms.
% 2.39/1.72 % [INFO] Definitions in FOF are currently treated as axioms.
% 2.39/1.73 % [INFO] Definitions in FOF are currently treated as axioms.
% 2.39/1.75 % [INFO] Found a conjecture (or negated_conjecture) and 26 axioms. Running axiom selection ...
% 2.64/1.84 % [INFO] Axiom selection finished. Selected 26 axioms (removed 0 axioms).
% 2.64/1.89 % [INFO] Definitions in FOF are currently treated as axioms.
% 2.64/1.89 % [INFO] Definitions in FOF are currently treated as axioms.
% 2.64/1.89 % [INFO] Definitions in FOF are currently treated as axioms.
% 2.64/1.90 % [INFO] Problem is first-order (TPTP FOF).
% 2.89/1.91 % [INFO] Type checking passed.
% 2.89/1.91 % [CONFIG] Using configuration: timeout(300) with strategy<name(default),share(1.0),primSubst(3),sos(false),unifierCount(4),uniDepth(8),boolExt(true),choice(true),renaming(true),funcspec(false), domConstr(0),specialInstances(39),restrictUniAttempts(true),termOrdering(CPO)>. Searching for refutation ...
% 9.34/3.81 % [INFO] Killing All external provers ...
% 9.34/3.82 % Time passed: 3250ms (effective reasoning time: 2586ms)
% 9.34/3.82 % Solved by strategy<name(default),share(1.0),primSubst(3),sos(false),unifierCount(4),uniDepth(8),boolExt(true),choice(true),renaming(true),funcspec(false), domConstr(0),specialInstances(39),restrictUniAttempts(true),termOrdering(CPO)>
% 9.34/3.82 % Axioms used in derivation (1): m__901
% 9.34/3.82 % No. of inferences in proof: 19
% 9.34/3.82 % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : 3250 ms resp. 2586 ms w/o parsing
% 9.34/3.86 % SZS output start Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 9.34/3.86 % [INFO] Killing All external provers ...
%------------------------------------------------------------------------------