%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : KRS067+1 : TPTP v9.3.1. Released v3.1.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% Computer : n017.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 01:54:04 PM UTC 2026
% Result : Unsatisfiable 0.38s 1.17s
% Output : CNFRefutation 0.38s
% Verified :
% SZS Type : ERROR: Analysing output (Could not find formula named f28ERROR: Could not build tree for root c_67ERROR: MakeTreeStats fails)
% Comments :
%------------------------------------------------------------------------------
fof(f4,axiom,
! [X0] :
( ca(X0)
=> ~ ( cb(X0)
| cc(X0) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_3) ).
fof(f5,axiom,
! [X0] :
( cb(X0)
=> ~ cc(X0) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_4) ).
fof(f6,axiom,
cUnsatisfiable(i2003_11_14_17_18_1956),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_5) ).
fof(f12,plain,
! [X0] :
( ~ ca(X0)
| ( ~ cb(X0)
& ~ cc(X0) ) ),
inference(ennf_transformation,[],[f4]) ).
fof(f13,plain,
! [X0] :
( ~ cb(X0)
| ~ cc(X0) ),
inference(ennf_transformation,[],[f5]) ).
fof(f22,plain,
! [X0] :
( ~ ca(X0)
| ~ cb(X0) ),
inference(cnf_transformation,[],[f12]) ).
fof(f23,plain,
! [X0] :
( ~ ca(X0)
| ~ cc(X0) ),
inference(cnf_transformation,[],[f12]) ).
fof(f24,plain,
! [X0] :
( ~ cb(X0)
| ~ cc(X0) ),
inference(cnf_transformation,[],[f13]) ).
fof(f25,plain,
cUnsatisfiable(i2003_11_14_17_18_1956),
inference(cnf_transformation,[],[f6]) ).
tcf(c_52,plain,
! [X0: $i] :
( ca(X0)
| cc(X0)
| ~ cUnsatisfiable(X0) ),
inference(cnf_transformation,[],[f28]) ).
tcf(c_53,plain,
! [X0: $i] :
( cb(X0)
| cc(X0)
| ~ cUnsatisfiable(X0) ),
inference(cnf_transformation,[],[f29]) ).
tcf(c_56,plain,
! [X0: $i] :
( ca(X0)
| cb(X0)
| ~ cUnsatisfiable(X0) ),
inference(cnf_transformation,[],[f31]) ).
tcf(c_57,plain,
! [X0: $i] :
( ~ ca(X0)
| ~ cc(X0) ),
inference(cnf_transformation,[],[f23]) ).
tcf(c_58,plain,
! [X0: $i] :
( ~ ca(X0)
| ~ cb(X0) ),
inference(cnf_transformation,[],[f22]) ).
tcf(c_59,plain,
! [X0: $i] :
( ~ cb(X0)
| ~ cc(X0) ),
inference(cnf_transformation,[],[f24]) ).
tcf(c_60,plain,
cUnsatisfiable(i2003_11_14_17_18_1956),
inference(cnf_transformation,[],[f25]) ).
tcf(c_61,plain,
( ~ cb(i2003_11_14_17_18_1956)
| ~ cc(i2003_11_14_17_18_1956) ),
inference(instantiation,[status(thm)],[c_59]) ).
tcf(c_62,plain,
( ~ ca(i2003_11_14_17_18_1956)
| ~ cb(i2003_11_14_17_18_1956) ),
inference(instantiation,[status(thm)],[c_58]) ).
tcf(c_63,plain,
( ~ ca(i2003_11_14_17_18_1956)
| ~ cc(i2003_11_14_17_18_1956) ),
inference(instantiation,[status(thm)],[c_57]) ).
tcf(c_64,plain,
( ca(i2003_11_14_17_18_1956)
| cb(i2003_11_14_17_18_1956)
| ~ cUnsatisfiable(i2003_11_14_17_18_1956) ),
inference(instantiation,[status(thm)],[c_56]) ).
tcf(c_65,plain,
( cb(i2003_11_14_17_18_1956)
| cc(i2003_11_14_17_18_1956)
| ~ cUnsatisfiable(i2003_11_14_17_18_1956) ),
inference(instantiation,[status(thm)],[c_53]) ).
tcf(c_66,plain,
( ca(i2003_11_14_17_18_1956)
| cc(i2003_11_14_17_18_1956)
| ~ cUnsatisfiable(i2003_11_14_17_18_1956) ),
inference(instantiation,[status(thm)],[c_52]) ).
tcf(c_67,plain,
$false,
inference(prop_impl_just,[status(thm)],[c_66,c_65,c_64,c_63,c_62,c_61,c_60]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : KRS067+1 : TPTP v9.3.1. Released v3.1.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.11/0.36 % Computer : n017.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 : Wed Sep 23 19:14:00 UTC 2026
% 0.11/0.36 % CPUTime :
% 0.11/0.36 Running run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.11/0.40 Running first-order theorem proving
% 0.11/0.40 Running: /export/starexec/sandbox2/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s fof_schedule -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.11/0.41
% 0.11/0.41 % ======== iProver multi-core TPTP/SMT =========
% 0.11/0.41
% 0.11/0.41 % Detected problem language: tptp
% 0.11/0.42 % Proving...
% 0.38/1.17 % SZS status Started for theBenchmark.p
% 0.38/1.17 % SZS status Unsatisfiable for theBenchmark.p
% 0.38/1.17
% 0.38/1.17 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 0.38/1.17
% 0.38/1.17 % ------ iProver source info
% 0.38/1.17
% 0.38/1.17 % git: date: 2026-07-19 20:42:38 +0200
% 0.38/1.17 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 0.38/1.17 % git: non_committed_changes: false
% 0.38/1.17
% 0.38/1.17 % ------ Parsing...
% 0.38/1.17 % ------ Clausification by vclausify_rel & Parsing by iProver...% ------ preprocesses with Option_epr_non_horn_non_eq
% 0.38/1.17 %
% 0.38/1.17
% 0.38/1.17 % ------ Preprocessing...%
% 0.38/1.17
% 0.38/1.17 % SZS status Unsatisfiable for theBenchmark.p
% 0.38/1.17
% 0.38/1.17 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 0.38/1.17
% 0.38/1.17
%------------------------------------------------------------------------------