%------------------------------------------------------------------------------
% File : ConnectPP---0.7.2
% Problem : PLA017-1 : TPTP v9.3.1. Released v1.1.0.
% Transfm : none
% Format : tptp:raw
% Command : /export/starexec/sandbox2/solver/bin/connect++ --verbosity 1 --no-colour --tptp-proof --schedule default --timeout 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 : Thu Sep 24 08:54:03 AM UTC 2026
% Result : Unsatisfiable 0.22s 0.48s
% Output : Proof 0.22s
% Verified :
% SZS Type : Refutation
% Derivation depth : 2
% Number of leaves : 10
% Syntax : Number of clauses : 29 ( 21 unt; 0 nHn; 29 RR)
% Number of literals : 45 ( 0 equ; 18 neg)
% Maximal clause size : 4 ( 1 avg)
% Maximal term depth : 4 ( 1 avg)
% Number of predicates : 3 ( 2 usr; 1 prp; 0-2 aty)
% Number of functors : 11 ( 11 usr; 5 con; 0-2 aty)
% Number of variables : 11 ( 1 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(pickup_1,axiom,
( ~ differ(X,table)
| ~ holds(clear(X),State)
| ~ holds(empty,State)
| holds(holding(X),do(pickup(X),State)) ),
file('PLA001-0.ax',pickup_1) ).
cnf(pickup_4,axiom,
( ~ differ(X,Z)
| ~ holds(clear(X),State)
| holds(clear(X),do(pickup(Z),State)) ),
file('PLA001-0.ax',pickup_4) ).
cnf(putdown_2,axiom,
( ~ holds(clear(Y),State)
| ~ holds(holding(X),State)
| holds(on(X,Y),do(putdown(X,Y),State)) ),
file('PLA001-0.ax',putdown_2) ).
cnf(symmetry_of_differ,axiom,
( ~ differ(Y,X)
| differ(X,Y) ),
file('PLA001-1.ax',symmetry_of_differ) ).
cnf(differ_a_c,axiom,
differ(a,c),
file('PLA001-1.ax',differ_a_c) ).
cnf(differ_a_table,axiom,
differ(a,table),
file('PLA001-1.ax',differ_a_table) ).
cnf(initial_state5,axiom,
holds(clear(a),s0),
file('PLA001-1.ax',initial_state5) ).
cnf(initial_state7,axiom,
holds(clear(c),s0),
file('PLA001-1.ax',initial_state7) ).
cnf(initial_state8,axiom,
holds(empty,s0),
file('PLA001-1.ax',initial_state8) ).
cnf(prove_AC,negated_conjecture,
~ holds(on(a,c),State),
file('theBenchmark.p',prove_AC) ).
cnf(t1,plain,
~ holds(on(a,c),do(putdown(a,c),do(pickup(a),s0))),
inference(start,[status(thm),parent(0:0)],[prove_AC]) ).
cnf(t2,plain,
( ~ holds(holding(a),do(pickup(a),s0))
| ~ holds(clear(c),do(pickup(a),s0))
| holds(on(a,c),do(putdown(a,c),do(pickup(a),s0))) ),
inference(extension,[status(thm),parent(t1:1)],[putdown_2]) ).
cnf(t3,plain,
$false,
inference(connection,[status(thm),parent(t2:1)],[t2:1,t1:1]) ).
cnf(t4,plain,
( ~ holds(clear(c),s0)
| ~ differ(c,a)
| holds(clear(c),do(pickup(a),s0)) ),
inference(extension,[status(thm),parent(t2:2)],[pickup_4]) ).
cnf(t5,plain,
$false,
inference(connection,[status(thm),parent(t4:1)],[t4:1,t2:2]) ).
cnf(t6,plain,
( ~ differ(a,c)
| differ(c,a) ),
inference(extension,[status(thm),parent(t4:2)],[symmetry_of_differ]) ).
cnf(t7,plain,
$false,
inference(connection,[status(thm),parent(t6:1)],[t6:1,t4:2]) ).
cnf(t8,plain,
differ(a,c),
inference(extension,[status(thm),parent(t6:2)],[differ_a_c]) ).
cnf(t9,plain,
$false,
inference(connection,[status(thm),parent(t8:1)],[t8:1,t6:2]) ).
cnf(t10,plain,
holds(clear(c),s0),
inference(extension,[status(thm),parent(t4:3)],[initial_state7]) ).
cnf(t11,plain,
$false,
inference(connection,[status(thm),parent(t10:1)],[t10:1,t4:3]) ).
cnf(t12,plain,
( ~ holds(empty,s0)
| ~ holds(clear(a),s0)
| ~ differ(a,table)
| holds(holding(a),do(pickup(a),s0)) ),
inference(extension,[status(thm),parent(t2:3)],[pickup_1]) ).
cnf(t13,plain,
$false,
inference(connection,[status(thm),parent(t12:1)],[t12:1,t2:3]) ).
cnf(t14,plain,
differ(a,table),
inference(extension,[status(thm),parent(t12:2)],[differ_a_table]) ).
cnf(t15,plain,
$false,
inference(connection,[status(thm),parent(t14:1)],[t14:1,t12:2]) ).
cnf(t16,plain,
holds(clear(a),s0),
inference(extension,[status(thm),parent(t12:3)],[initial_state5]) ).
cnf(t17,plain,
$false,
inference(connection,[status(thm),parent(t16:1)],[t16:1,t12:3]) ).
cnf(t18,plain,
holds(empty,s0),
inference(extension,[status(thm),parent(t12:4)],[initial_state8]) ).
cnf(t19,plain,
$false,
inference(connection,[status(thm),parent(t18:1)],[t18:1,t12:4]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : PLA017-1 : TPTP v9.3.1. Released v1.1.0.
% 0.00/0.03 This is a CNF_UNS_RFO_NEQ_HRN problem
% 0.00/0.04 % Command : /export/starexec/sandbox2/solver/bin/connect++ --verbosity 1 --no-colour --tptp-proof --schedule default --timeout 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.09/0.35 % Computer : n007.cluster.edu
% 0.09/0.35 % Model : x86_64 x86_64
% 0.09/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.35 % Memory : 8046.5625MB
% 0.09/0.35 % OS : Linux 6.8.0-71-generic
% 0.09/0.35 % CPULimit : 300
% 0.09/0.35 % WCLimit : 300
% 0.09/0.35 % DateTime : Sat Sep 19 19:38:34 UTC 2026
% 0.09/0.35 % CPUTime :
% 0.22/0.48 % SZS status Unsatisfiable for theBenchmark
% 0.22/0.48 % SZS output start Proof for theBenchmark
% See solution above
%------------------------------------------------------------------------------