%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : NUM677^1 : TPTP v9.3.1. Released v3.7.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% Computer : n010.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 : Wed Sep 30 08:18:30 AM UTC 2026
% Result : Theorem 0.21s 0.29s
% Output : Refutation 0.21s
% Verified :
% SZS Type : Refutation
% Derivation depth : 11
% Number of leaves : 5
% Syntax : Number of formulae : 30 ( 21 unt; 0 typ; 0 def)
% Number of atoms : 92 ( 36 equ; 0 cnn)
% Maximal formula atoms : 3 ( 3 avg)
% Number of connectives : 182 ( 20 ~; 10 |; 0 &; 146 @)
% ( 0 <=>; 6 =>; 0 <=; 0 <~>)
% Maximal formula depth : 11 ( 4 avg)
% Number of types : 2 ( 1 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 10 ( 7 usr; 6 con; 0-2 aty)
% Number of variables : 39 ( 0 ^; 39 !; 0 ?; 39 :)
% Comments :
%------------------------------------------------------------------------------
thf(type_def_5,type,
nat: $tType ).
thf(type_def_6,type,
sTfun: ( $tType * $tType ) > $tType ).
thf(func_def_0,type,
x: nat ).
thf(func_def_1,type,
y: nat ).
thf(func_def_2,type,
z: nat ).
thf(func_def_3,type,
u: nat ).
thf(func_def_4,type,
more: nat > nat > $o ).
thf(func_def_6,type,
pl: nat > nat > nat ).
thf(f1,axiom,
x = y,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',i) ).
thf(f2,axiom,
more @ z @ u,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',m) ).
thf(f3,axiom,
! [X1: nat,X2: nat,X0: nat,X3: nat] :
( ( X0 = X1 )
=> ( ( more @ X2 @ X3 )
=> ( more @ ( pl @ X0 @ X2 ) @ ( pl @ X1 @ X3 ) ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',satz19g) ).
thf(f4,axiom,
! [X1: nat,X0: nat] :
( ( pl @ X0 @ X1 )
= ( pl @ X1 @ X0 ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',satz6) ).
thf(f5,conjecture,
more @ ( pl @ z @ x ) @ ( pl @ u @ y ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',satz19h) ).
thf(f6,negated_conjecture,
~ ( more @ ( pl @ z @ x ) @ ( pl @ u @ y ) ),
inference(negated_conjecture,[status(cth)],[f5]) ).
thf(f7,plain,
~ ( more @ ( pl @ z @ x ) @ ( pl @ u @ y ) ),
inference(rectify,[],[f6]) ).
thf(f8,plain,
( ( more @ ( pl @ z @ x ) @ ( pl @ u @ y ) )
!= $true ),
inference(fool_elimination,[],[f7]) ).
thf(f9,plain,
! [X0: nat,X1: nat,X2: nat,X3: nat] :
( ( X0 = X2 )
=> ( ( more @ X1 @ X3 )
=> ( more @ ( pl @ X2 @ X1 ) @ ( pl @ X0 @ X3 ) ) ) ),
inference(rectify,[],[f3]) ).
thf(f10,plain,
! [X2: nat,X3: nat,X1: nat,X0: nat] :
( ( X0 = X2 )
=> ( ( ( more @ X1 @ X3 )
= $true )
=> ( $true
= ( more @ ( pl @ X2 @ X1 ) @ ( pl @ X0 @ X3 ) ) ) ) ),
inference(fool_elimination,[],[f9]) ).
thf(f11,plain,
more @ z @ u,
inference(rectify,[],[f2]) ).
thf(f12,plain,
( ( more @ z @ u )
= $true ),
inference(fool_elimination,[],[f11]) ).
thf(f13,plain,
( ( more @ ( pl @ z @ x ) @ ( pl @ u @ y ) )
!= $true ),
inference(flattening,[],[f8]) ).
thf(f14,plain,
! [X1: nat,X0: nat] :
( ( pl @ X0 @ X1 )
= ( pl @ X1 @ X0 ) ),
inference(rectify,[],[f4]) ).
thf(f15,plain,
! [X2: nat,X3: nat,X1: nat,X0: nat] :
( ( $true
= ( more @ ( pl @ X2 @ X1 ) @ ( pl @ X0 @ X3 ) ) )
| ( ( more @ X1 @ X3 )
!= $true )
| ( X0 != X2 ) ),
inference(ennf_transformation,[],[f10]) ).
thf(f16,plain,
! [X2: nat,X1: nat,X0: nat,X3: nat] :
( ( ( more @ X1 @ X3 )
!= $true )
| ( X0 != X2 )
| ( $true
= ( more @ ( pl @ X2 @ X1 ) @ ( pl @ X0 @ X3 ) ) ) ),
inference(flattening,[],[f15]) ).
thf(f17,plain,
! [X0: nat,X1: nat,X2: nat,X3: nat] :
( ( ( more @ X1 @ X3 )
!= $true )
| ( X0 != X2 )
| ( ( more @ ( pl @ X0 @ X1 ) @ ( pl @ X2 @ X3 ) )
= $true ) ),
inference(rectify,[],[f16]) ).
thf(f18,plain,
! [X0: nat,X1: nat] :
( ( pl @ X0 @ X1 )
= ( pl @ X1 @ X0 ) ),
inference(rectify,[],[f14]) ).
thf(f19,plain,
! [X2: nat,X3: nat,X0: nat,X1: nat] :
( ( ( more @ X1 @ X3 )
!= $true )
| ( X0 != X2 )
| ( ( more @ ( pl @ X0 @ X1 ) @ ( pl @ X2 @ X3 ) )
= $true ) ),
inference(cnf_transformation,[],[f17]) ).
thf(f20,plain,
x = y,
inference(cnf_transformation,[],[f1]) ).
thf(f21,plain,
( ( more @ z @ u )
= $true ),
inference(cnf_transformation,[],[f12]) ).
thf(f22,plain,
! [X0: nat,X1: nat] :
( ( pl @ X0 @ X1 )
= ( pl @ X1 @ X0 ) ),
inference(cnf_transformation,[],[f18]) ).
thf(f23,plain,
( ( more @ ( pl @ z @ x ) @ ( pl @ u @ y ) )
!= $true ),
inference(cnf_transformation,[],[f13]) ).
thf(f25,plain,
! [X2: nat,X3: nat,X1: nat] :
( ( $true
= ( more @ ( pl @ X2 @ X1 ) @ ( pl @ X2 @ X3 ) ) )
| ( ( more @ X1 @ X3 )
!= $true ) ),
inference(equality_resolution,[],[f19]) ).
thf(f26,plain,
( $true
!= ( more @ ( pl @ z @ x ) @ ( pl @ u @ x ) ) ),
inference(forward_demodulation,[],[f23,f20]) ).
thf(f27,plain,
( $true
!= ( more @ ( pl @ z @ x ) @ ( pl @ x @ u ) ) ),
inference(superposition,[],[f26,f22]) ).
thf(f31,plain,
( $true
!= ( more @ ( pl @ x @ z ) @ ( pl @ x @ u ) ) ),
inference(forward_demodulation,[],[f27,f22]) ).
thf(f39,plain,
( ( ( more @ z @ u )
!= $true )
| ( $true != $true ) ),
inference(superposition,[],[f31,f25]) ).
thf(f40,plain,
( ( more @ z @ u )
!= $true ),
inference(trivial_inequality_removal,[],[f39]) ).
thf(f41,plain,
$false,
inference(forward_subsumption_resolution,[],[f40,f21]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : NUM677^1 : TPTP v9.3.1. Released v3.7.0.
% 0.00/0.06 % Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.09/0.19 % Computer : n010.cluster.edu
% 0.09/0.19 % Model : x86_64 x86_64
% 0.09/0.19 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.19 % Memory : 8046.5625MB
% 0.09/0.19 % OS : Linux 6.8.0-71-generic
% 0.09/0.19 % CPULimit : 300
% 0.09/0.19 % WCLimit : 300
% 0.09/0.19 % DateTime : Tue Sep 29 12:36:03 UTC 2026
% 0.09/0.19 % CPUTime :
% 0.09/0.19 Running run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 THM
% 0.09/0.22 Running higher-order theorem proving
% 0.09/0.23 Running: /export/starexec/sandbox/solver/bin/vampire-ho --input_syntax tptp --output_axiom_names on --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.21/0.29 % (2791797)Detected a higher-order problem, will run a greedy HOL sequence.
% 0.21/0.29 % (2791816)dis+21_4_fde=none:e2e=on:si=on:uwa=off:foolp=on:random_seed=3739754144:i=24:av=off:rtra=on_2999 on theBenchmark for (2999ds/24Mi)
% 0.21/0.29 % (2791816) found proof, printing to "/export/starexec/sandbox/tmp/vampire-proof-2791797-2791816"...
% 0.21/0.29 % (2791816)...printing done.
% 0.21/0.29 % (2791816)Refutation found. Thanks to Tanya!
% 0.21/0.29 % SZS status Theorem for theBenchmark
% 0.21/0.29 % SZS output start Proof for theBenchmark
% See solution above
% 0.21/0.29 % (2791816)------------------------------
% 0.21/0.29 % (2791816)Version: Vampire 5.0.1 (Release build, commit 5ef7c2677 on 2026-07-16 16:54:09 +0200)
% 0.21/0.29 % (2791816)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.21/0.29 % (2791816)CaDiCaL version: 2.1.3
% 0.21/0.29 % (2791816)Termination reason: Refutation
% 0.21/0.29 % (2791816)Time elapsed: 0.002 s
% 0.21/0.29 % (2791816)Peak memory usage: 12 MB
% 0.21/0.29 % (2791816)Instructions burned: 3 (million)
% 0.21/0.29 % (2791797)Success in time 0.035 s
% 0.21/0.29 % Vampire exiting
%------------------------------------------------------------------------------