%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : TIM026_1 : TPTP v9.3.1. Released v9.3.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% Computer : n020.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 03:54:34 PM UTC 2026
% Result : Theorem 1.59s 1.30s
% Output : CNFRefutation 1.59s
% Verified :
% SZS Type : Refutation
% Derivation depth : 6
% Number of leaves : 2
% Syntax : Number of formulae : 10 ( 6 unt; 0 typ; 0 def)
% Number of atoms : 23 ( 4 equ)
% Maximal formula atoms : 2 ( 2 avg)
% Number of connectives : 11 ( 7 ~; 2 |; 2 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 4 ( 2 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of FOOLs : 9 ( 9 fml; 0 var)
% Number arithmetic : 27 ( 0 atm; 0 fun; 27 num; 0 var)
% Number of types : 2 ( 0 usr; 1 ari; 0 dat; 0 cdt)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of predicates : 19 ( 17 usr; 5 prp; 0-9 aty)
% Number of functors : 3 ( 1 usr; 2 con; 0-3 aty)
% Number of variables : 4 ( 0 sgn 2 !; 2 ?; 4 :)
% Comments :
%------------------------------------------------------------------------------
tff(func_def_0,type,
ymd: ( $int * ( $int * $int ) ) > date ).
tff(pred_def_1,type,
is_leap_year: $int > $o ).
tff(pred_def_2,type,
is_days_in_month: ( $int * ( $int * $int ) ) > $o ).
tff(pred_def_3,type,
is_days_in_year: ( $int * $int ) > $o ).
tff(pred_def_4,type,
calc_date: ( date * ( $int * ( $int * $int ) ) ) > $o ).
tff(pred_def_5,type,
calc_datetime: ( time * ( $int * ( $int * ( $int * ( $int * ( $int * ( $int * ( $int * $int ) ) ) ) ) ) ) ) > $o ).
tff(pred_def_6,type,
normalize_time: ( $int * ( $int * ( $int * ( $int * ( $int * ( $int * $int ) ) ) ) ) ) > $o ).
tff(pred_def_7,type,
weekday: ( day_name * date ) > $o ).
tff(pred_def_8,type,
zeller_prep: ( $int * ( $int * ( $int * ( $int * ( $int * $int ) ) ) ) ) > $o ).
tff(pred_def_9,type,
map_iso: ( day_name * $int ) > $o ).
tff(pred_def_10,type,
map_name_to_int: ( $int * day_name ) > $o ).
tff(pred_def_11,type,
nth_weekday_date: ( date * ( $int * ( $int * ( day_name * $int ) ) ) ) > $o ).
tff(pred_def_12,type,
calc_nth_offset: ( $int * ( $int * $int ) ) > $o ).
tff(pred_def_13,type,
valid_day: $int > $o ).
tff(f14,axiom,
weekday(ymd(1600,1,1),saturday),
file('/export/starexec/sandbox/benchmark/Axioms/TIM001_0.ax',anchor_1600_jan1) ).
tff(f88,conjecture,
? [X0: day_name] :
( ( X0 = saturday )
& weekday(ymd(1600,1,1),X0) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',test_1600) ).
tff(f89,negated_conjecture,
~ ? [X0: day_name] :
( ( X0 = saturday )
& weekday(ymd(1600,1,1),X0) ),
inference(negated_conjecture,[status(cth)],[f88]) ).
tff(f203,plain,
! [X0: day_name] :
( ( saturday != X0 )
| ~ weekday(ymd(1600,1,1),X0) ),
inference(ennf_transformation,[],[f89]) ).
tff(f217,plain,
weekday(ymd(1600,1,1),saturday),
inference(cnf_transformation,[],[f14]) ).
tff(f297,plain,
! [X0: day_name] :
( ( saturday != X0 )
| ~ weekday(ymd(1600,1,1),X0) ),
inference(cnf_transformation,[],[f203]) ).
tff(f322,plain,
~ weekday(ymd(1600,1,1),saturday),
inference(equality_resolution,[],[f297]) ).
tcf(c_84,plain,
weekday(ymd(1600,1,1),saturday),
inference(cnf_transformation,[],[f217]) ).
tcf(c_164,negated_conjecture,
~ weekday(ymd(1600,1,1),saturday),
inference(cnf_transformation,[],[f322]) ).
tcf(c_228,plain,
$false,
inference(prop_impl_just,[status(thm)],[c_164,c_84]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : TIM026_1 : TPTP v9.3.1. Released v9.3.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.12/0.38 % Computer : n020.cluster.edu
% 0.12/0.38 % Model : x86_64 x86_64
% 0.12/0.38 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.38 % Memory : 8046.5625MB
% 0.12/0.38 % OS : Linux 6.8.0-71-generic
% 0.12/0.38 % CPULimit : 300
% 0.12/0.38 % WCLimit : 300
% 0.12/0.38 % DateTime : Fri Sep 25 04:07:03 UTC 2026
% 0.12/0.38 % CPUTime :
% 0.12/0.38 Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.12/0.41 Running TFA theorem proving
% 0.12/0.41 Running: /export/starexec/sandbox/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s tfa_schedule -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.12/0.43
% 0.12/0.43 % ======== iProver multi-core TPTP/SMT =========
% 0.12/0.43
% 0.12/0.43 % Detected problem language: tptp
% 0.12/0.44 % Proving...
% 1.59/1.30 % SZS status Started for theBenchmark.p
% 1.59/1.30 % SZS status Theorem for theBenchmark.p
% 1.59/1.30
% 1.59/1.30 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 1.59/1.30
% 1.59/1.30 % ------ iProver source info
% 1.59/1.30
% 1.59/1.30 % git: date: 2026-07-19 20:42:38 +0200
% 1.59/1.30 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 1.59/1.30 % git: non_committed_changes: false
% 1.59/1.30
% 1.59/1.30 % ------ Parsing...
% 1.59/1.30 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 1.59/1.30
% 1.59/1.30 % ------ Preprocessing...%
% 1.59/1.30
% 1.59/1.30 % SZS status Theorem for theBenchmark.p
% 1.59/1.30
% 1.59/1.30 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 1.59/1.30
% 1.59/1.30
%------------------------------------------------------------------------------