%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : MSC011+1 : TPTP v9.3.1. Released v3.2.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% Computer : n014.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 02:13:57 PM UTC 2026
% Result : Theorem 1.06s 1.17s
% Output : CNFRefutation 1.06s
% Verified :
% SZS Type : Refutation
% Derivation depth : 6
% Number of leaves : 4
% Syntax : Number of formulae : 23 ( 11 unt; 0 def)
% Number of atoms : 41 ( 0 equ)
% Maximal formula atoms : 3 ( 1 avg)
% Number of connectives : 36 ( 18 ~; 14 |; 2 &)
% ( 0 <=>; 2 =>; 0 <=; 0 <~>)
% Maximal formula depth : 5 ( 3 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of types : 1 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of predicates : 5 ( 4 usr; 3 prp; 0-1 aty)
% Number of functors : 1 ( 1 usr; 1 con; 0-0 aty)
% Number of variables : 10 ( 0 sgn 8 !; 2 ?; 2 :)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [X0] :
( ( not_drunk(X0)
& drunk(X0) )
=> goal ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',d_cons) ).
fof(f2,axiom,
! [X0] :
( neg_psi
& drunk(X0) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',neg_phi) ).
fof(f3,axiom,
( neg_psi
=> ? [X0] : not_drunk(X0) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',neg_psi_ax) ).
fof(f4,conjecture,
goal,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',goal_to_be_proved) ).
fof(f5,negated_conjecture,
~ goal,
inference(negated_conjecture,[status(cth)],[f4]) ).
fof(f6,plain,
~ goal,
inference(flattening,[],[f5]) ).
fof(f7,plain,
! [X0] :
( ~ not_drunk(X0)
| ~ drunk(X0)
| goal ),
inference(ennf_transformation,[],[f1]) ).
fof(f8,plain,
! [X0] :
( ~ not_drunk(X0)
| ~ drunk(X0)
| goal ),
inference(flattening,[],[f7]) ).
fof(f9,plain,
( ~ neg_psi
| ? [X0] : not_drunk(X0) ),
inference(ennf_transformation,[],[f3]) ).
fof(f10,plain,
( ~ neg_psi
| not_drunk(sK0) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0]),skolemize(X0,sK0)],[f9]) ).
fof(f11,plain,
! [X0] :
( ~ not_drunk(X0)
| ~ drunk(X0)
| goal ),
inference(cnf_transformation,[],[f8]) ).
fof(f12,plain,
neg_psi,
inference(cnf_transformation,[],[f2]) ).
fof(f13,plain,
! [X0] : drunk(X0),
inference(cnf_transformation,[],[f2]) ).
fof(f14,plain,
( ~ neg_psi
| not_drunk(sK0) ),
inference(cnf_transformation,[],[f10]) ).
fof(f15,plain,
~ goal,
inference(cnf_transformation,[],[f6]) ).
tcf(c_49,plain,
! [X0: $i] :
( goal
| ~ not_drunk(X0)
| ~ drunk(X0) ),
inference(cnf_transformation,[],[f11]) ).
tcf(c_50,plain,
! [X0: $i] : drunk(X0),
inference(cnf_transformation,[],[f13]) ).
tcf(c_51,plain,
neg_psi,
inference(cnf_transformation,[],[f12]) ).
tcf(c_52,plain,
( not_drunk(sK0)
| ~ neg_psi ),
inference(cnf_transformation,[],[f14]) ).
tcf(c_53,negated_conjecture,
~ goal,
inference(cnf_transformation,[],[f15]) ).
tcf(c_54,plain,
drunk(sK0),
inference(instantiation,[status(thm)],[c_50]) ).
tcf(c_55,plain,
( goal
| ~ not_drunk(sK0)
| ~ drunk(sK0) ),
inference(instantiation,[status(thm)],[c_49]) ).
tcf(c_56,plain,
$false,
inference(prop_impl_just,[status(thm)],[c_55,c_52,c_54,c_53,c_51]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : MSC011+1 : TPTP v9.3.1. Released v3.2.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.12/0.37 % Computer : n014.cluster.edu
% 0.12/0.37 % Model : x86_64 x86_64
% 0.12/0.37 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.37 % Memory : 8046.5625MB
% 0.12/0.37 % OS : Linux 6.8.0-71-generic
% 0.12/0.37 % CPULimit : 300
% 0.12/0.37 % WCLimit : 300
% 0.12/0.37 % DateTime : Thu Sep 24 01:27:48 UTC 2026
% 0.12/0.37 % CPUTime :
% 0.12/0.37 Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.12/0.41 Running first-order theorem proving
% 0.12/0.41 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
% 0.12/0.42
% 0.12/0.42 % ======== iProver multi-core TPTP/SMT =========
% 0.12/0.42
% 0.12/0.42 % Detected problem language: tptp
% 0.12/0.43 % Proving...
% 1.06/1.17 % SZS status Started for theBenchmark.p
% 1.06/1.17 % SZS status Theorem for theBenchmark.p
% 1.06/1.17
% 1.06/1.17 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 1.06/1.17
% 1.06/1.17 % ------ iProver source info
% 1.06/1.17
% 1.06/1.17 % git: date: 2026-07-19 20:42:38 +0200
% 1.06/1.17 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 1.06/1.17 % git: non_committed_changes: false
% 1.06/1.17
% 1.06/1.17 % ------ Parsing...
% 1.06/1.17 % ------ Clausification by vclausify_rel & Parsing by iProver...% ------ preprocesses with Option_epr_horn
% 1.06/1.17 %
% 1.06/1.17
% 1.06/1.17 % ------ Preprocessing...%
% 1.06/1.17
% 1.06/1.17 % SZS status Theorem for theBenchmark.p
% 1.06/1.17
% 1.06/1.17 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 1.06/1.17
% 1.06/1.17
%------------------------------------------------------------------------------