%------------------------------------------------------------------------------
% File : Drodi---4.1.1
% Problem : MSC002-2 : TPTP v9.3.1. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n009.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 : Thu Sep 24 01:28:13 PM UTC 2026
% Result : Unsatisfiable 0.09s 0.39s
% Output : CNFRefutation 0.09s
% Verified :
% SZS Type : Refutation
% Derivation depth : 11
% Number of leaves : 10
% Syntax : Number of formulae : 35 ( 9 unt; 0 def)
% Number of atoms : 73 ( 0 equ)
% Maximal formula atoms : 3 ( 2 avg)
% Number of connectives : 84 ( 46 ~; 38 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 9 ( 5 avg)
% Maximal term depth : 5 ( 1 avg)
% Number of predicates : 7 ( 6 usr; 1 prp; 0-3 aty)
% Number of functors : 7 ( 7 usr; 4 con; 0-2 aty)
% Number of variables : 87 ( 87 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
at(something,here,now),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f2,axiom,
! [Thing,Situation] : ~ held(Thing,let_go(Situation)),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f3,axiom,
! [Thing,Situation] :
( red(Thing)
| ~ at(Thing,here,Situation) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f4,axiom,
! [Thing,Place,Situation] :
( at(Thing,Place,let_go(Situation))
| ~ at(Thing,Place,Situation) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f5,axiom,
! [Thing,Place,Situation] :
( at(Thing,Place,pick_up(Situation))
| ~ at(Thing,Place,Situation) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f6,axiom,
! [Thing,Place,Situation] :
( grabbed(Thing,pick_up(go(Place,let_go(Situation))))
| ~ at(Thing,Place,Situation) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f7,axiom,
! [Thing,Situation] :
( answer(Situation)
| ~ put(Thing,there,Situation)
| ~ red(Thing) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f8,axiom,
! [Thing,Place,Situation,Another_place] :
( put(Thing,Another_place,go(Another_place,Situation))
| ~ grabbed(Thing,Situation)
| ~ at(Thing,Place,Situation) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f9,axiom,
! [Thing,Situation,Place,Another_place] :
( at(Thing,Place,go(Another_place,Situation))
| ~ at(Thing,Place,Situation)
| held(Thing,Situation) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f10,negated_conjecture,
! [Situation] : ~ answer(Situation),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f11,plain,
at(something,here,now),
inference(cnf_transformation,[status(thm)],[f1]) ).
fof(f12,plain,
! [X0,X1] : ~ held(X0,let_go(X1)),
inference(cnf_transformation,[status(thm)],[f2]) ).
fof(f13,plain,
! [Thing] :
( red(Thing)
| ! [Situation] : ~ at(Thing,here,Situation) ),
inference(miniscoping,[status(thm)],[f3]) ).
fof(f14,plain,
! [X0,X1] :
( red(X0)
| ~ at(X0,here,X1) ),
inference(cnf_transformation,[status(thm)],[f13]) ).
fof(f15,plain,
! [X0,X1,X2] :
( at(X0,X1,let_go(X2))
| ~ at(X0,X1,X2) ),
inference(cnf_transformation,[status(thm)],[f4]) ).
fof(f16,plain,
! [X0,X1,X2] :
( at(X0,X1,pick_up(X2))
| ~ at(X0,X1,X2) ),
inference(cnf_transformation,[status(thm)],[f5]) ).
fof(f17,plain,
! [X0,X1,X2] :
( grabbed(X0,pick_up(go(X1,let_go(X2))))
| ~ at(X0,X1,X2) ),
inference(cnf_transformation,[status(thm)],[f6]) ).
fof(f18,plain,
! [Situation] :
( answer(Situation)
| ! [Thing] :
( ~ put(Thing,there,Situation)
| ~ red(Thing) ) ),
inference(miniscoping,[status(thm)],[f7]) ).
fof(f19,plain,
! [X0,X1] :
( answer(X1)
| ~ put(X0,there,X1)
| ~ red(X0) ),
inference(cnf_transformation,[status(thm)],[f18]) ).
fof(f20,plain,
! [Thing,Situation] :
( ! [Another_place] : put(Thing,Another_place,go(Another_place,Situation))
| ~ grabbed(Thing,Situation)
| ! [Place] : ~ at(Thing,Place,Situation) ),
inference(miniscoping,[status(thm)],[f8]) ).
fof(f21,plain,
! [X0,X1,X2,X3] :
( put(X0,X3,go(X3,X2))
| ~ grabbed(X0,X2)
| ~ at(X0,X1,X2) ),
inference(cnf_transformation,[status(thm)],[f20]) ).
fof(f22,plain,
! [Thing,Situation,Place] :
( ! [Another_place] : at(Thing,Place,go(Another_place,Situation))
| ~ at(Thing,Place,Situation)
| held(Thing,Situation) ),
inference(miniscoping,[status(thm)],[f9]) ).
fof(f23,plain,
! [X0,X1,X2,X3] :
( at(X0,X2,go(X3,X1))
| ~ at(X0,X2,X1)
| held(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f22]) ).
fof(f24,plain,
! [X0] : ~ answer(X0),
inference(cnf_transformation,[status(thm)],[f10]) ).
fof(f25,plain,
red(something),
inference(resolution,[status(thm)],[f14,f11]) ).
fof(f28,plain,
! [X0,X1] :
( ~ put(X0,there,X1)
| ~ red(X0) ),
inference(forward_subsumption_resolution,[status(thm)],[f19,f24]) ).
fof(f29,plain,
! [X0,X1,X2,X3,X4] :
( ~ at(X0,X2,X3)
| put(X0,X4,go(X4,pick_up(go(X2,let_go(X3)))))
| ~ at(X0,X1,pick_up(go(X2,let_go(X3)))) ),
inference(resolution,[status(thm)],[f21,f17]) ).
fof(f31,plain,
! [X0,X1,X2,X3] :
( ~ red(X0)
| ~ at(X0,X2,X3)
| ~ at(X0,X1,pick_up(go(X2,let_go(X3)))) ),
inference(resolution,[status(thm)],[f29,f28]) ).
fof(f32,plain,
! [X0,X1,X2] :
( ~ at(something,X1,X2)
| ~ at(something,X0,pick_up(go(X1,let_go(X2)))) ),
inference(resolution,[status(thm)],[f31,f25]) ).
fof(f33,plain,
! [X0,X1,X2] :
( ~ at(something,X2,go(X0,let_go(X1)))
| ~ at(something,X0,X1) ),
inference(resolution,[status(thm)],[f32,f16]) ).
fof(f34,plain,
! [X0,X1,X2] :
( ~ at(something,X2,let_go(X1))
| held(something,let_go(X1))
| ~ at(something,X0,X1) ),
inference(resolution,[status(thm)],[f33,f23]) ).
fof(f35,plain,
! [X0,X1,X2] :
( ~ at(something,X2,let_go(X1))
| ~ at(something,X0,X1) ),
inference(forward_subsumption_resolution,[status(thm)],[f34,f12]) ).
fof(f36,plain,
! [X0,X1,X2] :
( ~ at(something,X2,X1)
| ~ at(something,X0,X1) ),
inference(resolution,[status(thm)],[f35,f15]) ).
fof(f37,plain,
! [X0] : ~ at(something,X0,now),
inference(resolution,[status(thm)],[f36,f11]) ).
fof(f42,plain,
$false,
inference(backward_subsumption_resolution,[status(thm)],[f11,f37]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : MSC002-2 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.03 % Command : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.09/0.36 % Computer : n009.cluster.edu
% 0.09/0.36 % Model : x86_64 x86_64
% 0.09/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.36 % Memory : 8046.5625MB
% 0.09/0.36 % OS : Linux 6.8.0-71-generic
% 0.09/0.36 % CPULimit : 300
% 0.09/0.36 % WCLimit : 300
% 0.09/0.36 % DateTime : Mon Sep 21 01:27:12 UTC 2026
% 0.09/0.36 % CPUTime :
% 0.09/0.37 % Drodi V4.1.1
% 0.09/0.39 % Refutation found
% 0.09/0.39 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.09/0.39 % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.09/0.42 % Elapsed time: 0.046353 seconds
% 0.09/0.42 % CPU time: 0.120783 seconds
% 0.09/0.42 % Total memory used: 16.757 MB
% 0.09/0.42 % Net memory used: 16.252 MB
%------------------------------------------------------------------------------