%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : SYN354+1 : TPTP v9.3.1. Released v2.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% Computer : n018.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 : Fri Sep 25 03:39:50 PM UTC 2026
% Result : Theorem 1.57s 1.27s
% Output : CNFRefutation 1.57s
% Verified :
% SZS Type : Refutation
% Derivation depth : 11
% Number of leaves : 1
% Syntax : Number of formulae : 21 ( 3 unt; 0 def)
% Number of atoms : 130 ( 0 equ)
% Maximal formula atoms : 15 ( 6 avg)
% Number of connectives : 165 ( 56 ~; 59 |; 30 &)
% ( 6 <=>; 12 =>; 0 <=; 2 <~>)
% Maximal formula depth : 15 ( 7 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of types : 1 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of predicates : 3 ( 2 usr; 1 prp; 0-2 aty)
% Number of functors : 3 ( 3 usr; 2 con; 0-2 aty)
% Number of variables : 48 ( 0 sgn 32 !; 16 ?; 10 :)
% Comments :
%------------------------------------------------------------------------------
fof(f1,conjecture,
! [X0,X1] :
? [X2,X3] :
! [X4] :
( big_f(X0,X1)
=> ( big_g(X0,X1)
=> ( ( ( big_g(X1,X4)
<=> big_g(X3,X4) )
=> ( big_f(X2,X3)
=> big_f(X1,X3) ) )
=> ( ( big_g(X1,X4)
<=> big_g(X2,X4) )
=> ( big_f(X2,X3)
& big_f(X1,X2)
& big_f(X0,X2) ) ) ) ) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',church_46_20_1) ).
fof(f2,negated_conjecture,
~ ! [X0,X1] :
? [X2,X3] :
! [X4] :
( big_f(X0,X1)
=> ( big_g(X0,X1)
=> ( ( ( big_g(X1,X4)
<=> big_g(X3,X4) )
=> ( big_f(X2,X3)
=> big_f(X1,X3) ) )
=> ( ( big_g(X1,X4)
<=> big_g(X2,X4) )
=> ( big_f(X2,X3)
& big_f(X1,X2)
& big_f(X0,X2) ) ) ) ) ),
inference(negated_conjecture,[status(cth)],[f1]) ).
fof(f3,plain,
? [X0,X1] :
! [X2,X3] :
? [X4] :
( big_f(X0,X1)
& big_g(X0,X1)
& ( ( big_g(X1,X4)
<~> big_g(X3,X4) )
| ~ big_f(X2,X3)
| big_f(X1,X3) )
& ( big_g(X1,X4)
<=> big_g(X2,X4) )
& ( ~ big_f(X2,X3)
| ~ big_f(X1,X2)
| ~ big_f(X0,X2) ) ),
inference(ennf_transformation,[],[f2]) ).
fof(f4,plain,
? [X0,X1] :
! [X2,X3] :
? [X4] :
( big_f(X0,X1)
& big_g(X0,X1)
& ( ( big_g(X1,X4)
<~> big_g(X3,X4) )
| ~ big_f(X2,X3)
| big_f(X1,X3) )
& ( big_g(X1,X4)
<=> big_g(X2,X4) )
& ( ~ big_f(X2,X3)
| ~ big_f(X1,X2)
| ~ big_f(X0,X2) ) ),
inference(flattening,[],[f3]) ).
fof(f5,plain,
? [X0,X1] :
! [X2,X3] :
? [X4] :
( big_f(X0,X1)
& big_g(X0,X1)
& ( ( ( big_g(X1,X4)
| big_g(X3,X4) )
& ( ~ big_g(X1,X4)
| ~ big_g(X3,X4) ) )
| ~ big_f(X2,X3)
| big_f(X1,X3) )
& ( ~ big_g(X1,X4)
| big_g(X2,X4) )
& ( ~ big_g(X2,X4)
| big_g(X1,X4) )
& ( ~ big_f(X2,X3)
| ~ big_f(X1,X2)
| ~ big_f(X0,X2) ) ),
inference(nnf_transformation,[],[f4]) ).
fof(f6,plain,
? [X0,X1] :
! [X2,X3] :
? [X4] :
( big_f(X0,X1)
& big_g(X0,X1)
& ( ( ( big_g(X1,X4)
| big_g(X3,X4) )
& ( ~ big_g(X1,X4)
| ~ big_g(X3,X4) ) )
| ~ big_f(X2,X3)
| big_f(X1,X3) )
& ( ~ big_g(X1,X4)
| big_g(X2,X4) )
& ( ~ big_g(X2,X4)
| big_g(X1,X4) )
& ( ~ big_f(X2,X3)
| ~ big_f(X1,X2)
| ~ big_f(X0,X2) ) ),
inference(flattening,[],[f5]) ).
fof(f7,plain,
! [X2,X3] :
( big_f(sK0,sK1)
& big_g(sK0,sK1)
& ( ( ( big_g(sK1,sK2(X2,X3))
| big_g(X3,sK2(X2,X3)) )
& ( ~ big_g(sK1,sK2(X2,X3))
| ~ big_g(X3,sK2(X2,X3)) ) )
| ~ big_f(X2,X3)
| big_f(sK1,X3) )
& ( ~ big_g(sK1,sK2(X2,X3))
| big_g(X2,sK2(X2,X3)) )
& ( ~ big_g(X2,sK2(X2,X3))
| big_g(sK1,sK2(X2,X3)) )
& ( ~ big_f(X2,X3)
| ~ big_f(sK1,X2)
| ~ big_f(sK0,X2) ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0,sK1,sK2]),skolemize(X0,sK0),skolemize(X1,sK1),skolemize(X4,sK2(X2,X3))],[f6]) ).
fof(f8,plain,
big_f(sK0,sK1),
inference(cnf_transformation,[],[f7]) ).
fof(f10,plain,
! [X2,X3] :
( big_g(sK1,sK2(X2,X3))
| big_g(X3,sK2(X2,X3))
| ~ big_f(X2,X3)
| big_f(sK1,X3) ),
inference(cnf_transformation,[],[f7]) ).
fof(f11,plain,
! [X2,X3] :
( ~ big_g(sK1,sK2(X2,X3))
| ~ big_g(X3,sK2(X2,X3))
| ~ big_f(X2,X3)
| big_f(sK1,X3) ),
inference(cnf_transformation,[],[f7]) ).
fof(f14,plain,
! [X2,X3] :
( ~ big_f(X2,X3)
| ~ big_f(sK1,X2)
| ~ big_f(sK0,X2) ),
inference(cnf_transformation,[],[f7]) ).
tcf(c_49,negated_conjecture,
! [X0: $i,X1: $i] :
( ~ big_f(sK1,X0)
| ~ big_f(sK0,X0)
| ~ big_f(X0,X1) ),
inference(cnf_transformation,[],[f14]) ).
tcf(c_52,negated_conjecture,
! [X0: $i,X1: $i] :
( big_f(sK1,X0)
| ~ big_f(X1,X0)
| ~ big_g(sK1,sK2(X1,X0))
| ~ big_g(X0,sK2(X1,X0)) ),
inference(cnf_transformation,[],[f11]) ).
tcf(c_53,negated_conjecture,
! [X0: $i,X1: $i] :
( big_f(sK1,X1)
| big_g(sK1,sK2(X0,X1))
| big_g(X1,sK2(X0,X1))
| ~ big_f(X0,X1) ),
inference(cnf_transformation,[],[f10]) ).
tcf(c_55,negated_conjecture,
big_f(sK0,sK1),
inference(cnf_transformation,[],[f8]) ).
tcf(c_56,plain,
( ~ big_f(sK1,sK1)
| ~ big_f(sK0,sK1) ),
inference(instantiation,[status(thm)],[c_49]) ).
tcf(c_165,negated_conjecture,
! [X0: $i,X1: $i] :
( big_f(sK1,X1)
| big_g(sK1,sK2(X0,X1))
| big_g(X1,sK2(X0,X1))
| ~ big_f(X0,X1) ),
inference(demodulation,[status(thm)],[c_53]) ).
tcf(c_166,negated_conjecture,
! [X0: $i,X1: $i] :
( big_f(sK1,X0)
| ~ big_f(X1,X0)
| ~ big_g(sK1,sK2(X1,X0))
| ~ big_g(X0,sK2(X1,X0)) ),
inference(demodulation,[status(thm)],[c_52]) ).
tcf(c_170,plain,
( big_f(sK1,sK1)
| big_g(sK1,sK2(sK0,sK1))
| ~ big_f(sK0,sK1) ),
inference(instantiation,[status(thm)],[c_165]) ).
tcf(c_171,plain,
( big_f(sK1,sK1)
| ~ big_f(sK0,sK1)
| ~ big_g(sK1,sK2(sK0,sK1)) ),
inference(instantiation,[status(thm)],[c_166]) ).
tcf(c_172,plain,
$false,
inference(prop_impl_just,[status(thm)],[c_171,c_170,c_56,c_55]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SYN354+1 : TPTP v9.3.1. Released v2.0.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.08/0.36 % Computer : n018.cluster.edu
% 0.08/0.36 % Model : x86_64 x86_64
% 0.08/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.36 % Memory : 8046.5625MB
% 0.08/0.36 % OS : Linux 6.8.0-71-generic
% 0.08/0.36 % CPULimit : 300
% 0.08/0.36 % WCLimit : 300
% 0.08/0.36 % DateTime : Fri Sep 25 00:59:36 UTC 2026
% 0.08/0.37 % CPUTime :
% 0.08/0.37 Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.12/0.40 Running first-order theorem proving
% 0.12/0.40 Running: /export/starexec/sandbox/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s fof_schedule -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.12/0.41
% 0.12/0.41 % ======== iProver multi-core TPTP/SMT =========
% 0.12/0.41
% 0.12/0.41 % Detected problem language: tptp
% 0.12/0.42 % Proving...
% 1.57/1.27 % SZS status Started for theBenchmark.p
% 1.57/1.27 % SZS status Theorem for theBenchmark.p
% 1.57/1.27
% 1.57/1.27 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 1.57/1.27
% 1.57/1.27 % ------ iProver source info
% 1.57/1.27
% 1.57/1.27 % git: date: 2026-07-19 20:42:38 +0200
% 1.57/1.27 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 1.57/1.27 % git: non_committed_changes: false
% 1.57/1.27
% 1.57/1.27 % ------ Parsing...
% 1.57/1.27 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 1.57/1.27
% 1.57/1.27 % ------ Preprocessing... sf_s rm: 1 0s sf_e pe_s pe_e sf_s rm: 0 0s sf_e pe_s pe_e %
% 1.57/1.27
% 1.57/1.27 % ------ Preprocessing... gs_s sp: 0 0s gs_e snvd_s sp: 0 0s snvd_e
% 1.57/1.27 % ------ Proving...
% 1.57/1.27 % ------ Problem Properties
% 1.57/1.27
% 1.57/1.27 %
% 1.57/1.27 % clauses 6
% 1.57/1.27 % conjectures 6
% 1.57/1.27 % EPR 2
% 1.57/1.27 % Horn 5
% 1.57/1.27 % unary 1
% 1.57/1.27 % binary 2
% 1.57/1.27 % lits 16
% 1.57/1.27 % lits eq 0
% 1.57/1.27 % fd_pure 0
% 1.57/1.27 % fd_pseudo 0
% 1.57/1.27 % fd_cond 0
% 1.57/1.27 % fd_pseudo_cond 0
% 1.57/1.27 % AC symbols 0
% 1.57/1.27
% 1.57/1.27 % ------ Schedule dynamic 5 is on
% 1.57/1.27
% 1.57/1.27 % ------ no equalities: superposition off
% 1.57/1.27
% 1.57/1.27 % ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 1.57/1.27
% 1.57/1.27
% 1.57/1.27 % ------
% 1.57/1.27 % Current options:
% 1.57/1.27 % ------
% 1.57/1.27
% 1.57/1.27
% 1.57/1.27 %
% 1.57/1.27
% 1.57/1.27 % ------ Proving...
% 1.57/1.27 %
% 1.57/1.27
% 1.57/1.27 % SZS status Theorem for theBenchmark.p
% 1.57/1.27
% 1.57/1.27 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 1.57/1.27
% 1.57/1.27
%------------------------------------------------------------------------------