%------------------------------------------------------------------------------
% File : Vampire-SAT---5.0.1
% Problem : SET864-2 : TPTP v9.3.1. Released v3.2.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 SAT
% 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 : Tue Sep 29 12:44:53 PM UTC 2026
% Result : Unsatisfiable 0.11s 0.44s
% Output : Refutation 0.11s
% Verified :
% SZS Type : Refutation
% Derivation depth : 6
% Number of leaves : 6
% Syntax : Number of formulae : 13 ( 4 unt; 0 def)
% Number of atoms : 28 ( 4 equ)
% Maximal formula atoms : 4 ( 2 avg)
% Number of connectives : 36 ( 21 ~; 15 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 9 ( 4 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 4 ( 2 usr; 1 prp; 0-3 aty)
% Number of functors : 7 ( 7 usr; 3 con; 0-2 aty)
% Number of variables : 14 ( 14 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [X2,X3,X0,X1] :
( ~ c_lessequals(c_Union(X3,X2),X0,tc_set(X2))
| ~ c_in(X3,c_Zorn_Omaxchain(X1,X2),tc_set(tc_set(X2)))
| ~ c_in(X0,X1,tc_set(X2))
| c_Union(X3,X2) = X0 ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_Zorn_Omaxchain__Zorn_0) ).
fof(f2,negated_conjecture,
c_in(v_c,c_Zorn_Omaxchain(v_S,t_a),tc_set(tc_set(t_a))),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_conjecture_0) ).
fof(f3,negated_conjecture,
c_in(c_Union(v_c,t_a),v_S,tc_set(t_a)),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_conjecture_2) ).
fof(f4,negated_conjecture,
! [X0] :
( c_in(v_x(X0),v_S,tc_set(t_a))
| ~ c_in(X0,v_S,tc_set(t_a)) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_conjecture_3) ).
fof(f5,negated_conjecture,
! [X0] :
( c_lessequals(X0,v_x(X0),tc_set(t_a))
| ~ c_in(X0,v_S,tc_set(t_a)) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_conjecture_4) ).
fof(f6,negated_conjecture,
! [X0] :
( X0 != v_x(X0)
| ~ c_in(X0,v_S,tc_set(t_a)) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cls_conjecture_5) ).
fof(f7,plain,
! [X0] :
( ~ c_in(X0,v_S,tc_set(t_a))
| v_x(X0) != X0 ),
inference(reorient_equations,[],[f6]) ).
fof(f12,plain,
! [X0,X1] :
( ~ c_in(X0,c_Zorn_Omaxchain(X1,t_a),tc_set(tc_set(t_a)))
| ~ c_in(v_x(c_Union(X0,t_a)),X1,tc_set(t_a))
| c_Union(X0,t_a) = v_x(c_Union(X0,t_a))
| ~ c_in(c_Union(X0,t_a),v_S,tc_set(t_a)) ),
inference(resolution,[],[f1,f5]) ).
fof(f13,plain,
! [X0,X1] :
( ~ c_in(v_x(c_Union(X0,t_a)),X1,tc_set(t_a))
| ~ c_in(X0,c_Zorn_Omaxchain(X1,t_a),tc_set(tc_set(t_a)))
| ~ c_in(c_Union(X0,t_a),v_S,tc_set(t_a)) ),
inference(forward_subsumption_resolution,[],[f12,f7]) ).
fof(f14,plain,
! [X0] :
( ~ c_in(X0,c_Zorn_Omaxchain(v_S,t_a),tc_set(tc_set(t_a)))
| ~ c_in(c_Union(X0,t_a),v_S,tc_set(t_a))
| ~ c_in(c_Union(X0,t_a),v_S,tc_set(t_a)) ),
inference(resolution,[],[f13,f4]) ).
fof(f15,plain,
! [X0] :
( ~ c_in(X0,c_Zorn_Omaxchain(v_S,t_a),tc_set(tc_set(t_a)))
| ~ c_in(c_Union(X0,t_a),v_S,tc_set(t_a)) ),
inference(duplicate_literal_removal,[],[f14]) ).
fof(f18,plain,
~ c_in(c_Union(v_c,t_a),v_S,tc_set(t_a)),
inference(resolution,[],[f15,f2]) ).
fof(f19,plain,
$false,
inference(forward_subsumption_resolution,[],[f18,f3]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SET864-2 : TPTP v9.3.1. Released v3.2.0.
% 0.00/0.05 % Command : run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 SAT
% 0.11/0.36 % Computer : n010.cluster.edu
% 0.11/0.36 % Model : x86_64 x86_64
% 0.11/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.36 % Memory : 8046.5625MB
% 0.11/0.36 % OS : Linux 6.8.0-71-generic
% 0.11/0.36 % CPULimit : 300
% 0.11/0.36 % WCLimit : 300
% 0.11/0.36 % DateTime : Mon Sep 28 03:04:32 UTC 2026
% 0.11/0.37 % CPUTime :
% 0.11/0.37 Running run_vampire /export/starexec/sandbox/benchmark/theBenchmark.p 300 SAT
% 0.11/0.39 Running first-order model finding
% 0.11/0.39 Running: /export/starexec/sandbox/solver/bin/vampire-ho --input_syntax tptp --output_axiom_names on --mode casc --intent sat -m 16384 --cores 7 -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.11/0.44 % (1524773)Will run a generic schedule for satisfiability detection.
% 0.11/0.44 % (1524782)ott+31_1_sil=16000:lcm=predicate:bce=on:newcnf=on:random_seed=2740176410:i=116_2999 on theBenchmark for (2999ds/116Mi)
% 0.11/0.44 % (1524782) found proof, printing to "/export/starexec/sandbox/tmp/vampire-proof-1524773-1524782"...
% 0.11/0.44 % (1524782)...printing done.
% 0.11/0.44 % (1524782)Refutation found. Thanks to Tanya!
% 0.11/0.44 % SZS status Unsatisfiable for theBenchmark
% 0.11/0.44 % SZS output start Proof for theBenchmark
% See solution above
% 0.11/0.44 % (1524782)------------------------------
% 0.11/0.44 % (1524782)Version: Vampire 5.0.1 (Release build, commit 5ef7c2677 on 2026-07-16 16:54:09 +0200)
% 0.11/0.44 % (1524782)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 0.11/0.44 % (1524782)CaDiCaL version: 2.1.3
% 0.11/0.44 % (1524782)Termination reason: Refutation
% 0.11/0.44 % (1524782)Time elapsed: 0.001 s
% 0.11/0.44 % (1524782)Peak memory usage: 11 MB
% 0.11/0.44 % (1524782)Instructions burned: 1 (million)
% 0.11/0.44 % (1524773)Success in time 0.034 s
% 0.11/0.44 % Vampire exiting
%------------------------------------------------------------------------------