%------------------------------------------------------------------------------
% File : LisaST---0.9
% Problem : PLA020-1 : TPTP v9.3.1. Released v1.1.0.
% Transfm : none
% Format : tptp:raw
% Command : casc-portfolio.sh -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n007.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 : Sun Sep 27 08:20:07 AM UTC 2026
% Result : Unsatisfiable 7.28s 2.84s
% Output : CNFRefutation 7.28s
% Verified :
% SZS Type : Refutation
% Derivation depth : 5
% Number of leaves : 5
% Syntax : Number of clauses : 14 ( 10 unt; 0 nHn; 14 RR)
% Number of literals : 23 ( 0 equ; 14 neg)
% Maximal clause size : 4 ( 1 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 2 ( 1 usr; 1 prp; 0-2 aty)
% Number of functors : 8 ( 8 usr; 4 con; 0-2 aty)
% Number of variables : 10 ( 2 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(prove_D,negated_conjecture,
~ holds(clear(d),X0) ).
cnf(pickup_2,axiom,
( ~ holds(empty,X2)
| ~ holds(clear(X1),X2)
| ~ holds(on(X1,X0),X2)
| holds(clear(X0),do(pickup(X1),X2)) ) ).
cnf(initial_state3,axiom,
holds(on(c,d),s0) ).
cnf(initial_state7,axiom,
holds(clear(c),s0) ).
cnf(initial_state8,axiom,
holds(empty,s0) ).
cnf(c0,plain,
~ holds(clear(d),X0),
inference(clausification,[status(esa)],[prove_D]) ).
cnf(c3,plain,
( ~ holds(empty,X2)
| ~ holds(clear(X1),X2)
| ~ holds(on(X1,X0),X2)
| holds(clear(X0),do(pickup(X1),X2)) ),
inference(clausification,[status(esa)],[pickup_2]) ).
cnf(c24,plain,
holds(on(c,d),s0),
inference(clausification,[status(esa)],[initial_state3]) ).
cnf(c28,plain,
holds(clear(c),s0),
inference(clausification,[status(esa)],[initial_state7]) ).
cnf(c29,plain,
holds(empty,s0),
inference(clausification,[status(esa)],[initial_state8]) ).
cnf(d0,plain,
( ~ holds(on(X0,d),X1)
| ~ holds(empty,X1)
| ~ holds(clear(X0),X1) ),
inference(resolution,[status(thm)],[c3,c0]) ).
cnf(d1,plain,
( ~ holds(empty,s0)
| ~ holds(clear(c),s0) ),
inference(resolution,[status(thm)],[d0,c24]) ).
cnf(d2,plain,
~ holds(clear(c),s0),
inference(resolution,[status(thm)],[c29,d1]) ).
cnf(d3,plain,
$false,
inference(resolution,[status(thm)],[c28,d2]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.04 % Problem : PLA020-1 : TPTP v9.3.1. Released v1.1.0.
% 0.00/0.06 % Command : casc-portfolio.sh -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.14/0.41 % Computer : n007.cluster.edu
% 0.14/0.41 % Model : x86_64 x86_64
% 0.14/0.41 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.41 % Memory : 8046.5625MB
% 0.14/0.41 % OS : Linux 6.8.0-71-generic
% 0.14/0.41 % CPULimit : 300
% 0.14/0.41 % WCLimit : 300
% 0.14/0.41 % DateTime : Sat Sep 26 04:42:38 UTC 2026
% 0.14/0.42 % CPUTime :
% 0.14/0.42 Running casc-portfolio.sh -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 7.28/2.84 % SZS status Unsatisfiable for theBenchmark.p
% 7.28/2.84 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
%------------------------------------------------------------------------------