%------------------------------------------------------------------------------
% File : Twee---2.7
% Problem : PLA020-1 : TPTP v9.3.1. Released v1.1.0.
% Transfm : none
% Format : tptp:raw
% Command : run_twee /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n016.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 : Tue Sep 29 12:27:34 PM UTC 2026
% Result : Unsatisfiable 0.24s 0.56s
% Output : Proof 0.24s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : PLA020-1 : TPTP v9.3.1. Released v1.1.0.
% 0.00/0.04 % Command : run_twee /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.13/0.38 % Computer : n016.cluster.edu
% 0.13/0.38 % Model : x86_64 x86_64
% 0.13/0.38 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.38 % Memory : 8046.5625MB
% 0.13/0.38 % OS : Linux 6.8.0-71-generic
% 0.13/0.38 % CPULimit : 300
% 0.13/0.38 % WCLimit : 300
% 0.13/0.38 % DateTime : Sun Sep 27 22:15:17 UTC 2026
% 0.13/0.38 % CPUTime :
% 0.13/0.38 Running run_twee /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.24/0.56 Command-line arguments: --lhs-weight 9 --flip-ordering --complete-subsets --normalise-queue-percent 10 --cp-renormalise-threshold 10
% 0.24/0.56
% 0.24/0.56 % SZS status Unsatisfiable
% 0.24/0.56
% 0.24/0.56 % SZS output start Proof
% 0.24/0.56 Axiom 1 (initial_state8): holds(empty, s0) = true.
% 0.24/0.56 Axiom 2 (initial_state7): holds(clear(c), s0) = true.
% 0.24/0.56 Axiom 3 (initial_state3): holds(on(c, d), s0) = true.
% 0.24/0.56 Axiom 4 (ifeq_axiom): ifeq(X, X, Y, Z) = Y.
% 0.24/0.56 Axiom 5 (pickup_2): ifeq(holds(on(X, Y), Z), true, ifeq(holds(clear(X), Z), true, ifeq(holds(empty, Z), true, holds(clear(Y), do(pickup(X), Z)), true), true), true) = true.
% 0.24/0.56
% 0.24/0.56 Goal 1 (prove_D): holds(clear(d), X) = true.
% 0.24/0.56 The goal is true when:
% 0.24/0.56 X = do(pickup(c), s0)
% 0.24/0.56
% 0.24/0.56 Proof:
% 0.24/0.56 holds(clear(d), do(pickup(c), s0))
% 0.24/0.56 = { by axiom 4 (ifeq_axiom) R->L }
% 0.24/0.56 ifeq(true, true, holds(clear(d), do(pickup(c), s0)), true)
% 0.24/0.56 = { by axiom 1 (initial_state8) R->L }
% 0.24/0.56 ifeq(holds(empty, s0), true, holds(clear(d), do(pickup(c), s0)), true)
% 0.24/0.56 = { by axiom 4 (ifeq_axiom) R->L }
% 0.24/0.56 ifeq(true, true, ifeq(holds(empty, s0), true, holds(clear(d), do(pickup(c), s0)), true), true)
% 0.24/0.56 = { by axiom 2 (initial_state7) R->L }
% 0.24/0.56 ifeq(holds(clear(c), s0), true, ifeq(holds(empty, s0), true, holds(clear(d), do(pickup(c), s0)), true), true)
% 0.24/0.56 = { by axiom 4 (ifeq_axiom) R->L }
% 0.24/0.56 ifeq(true, true, ifeq(holds(clear(c), s0), true, ifeq(holds(empty, s0), true, holds(clear(d), do(pickup(c), s0)), true), true), true)
% 0.24/0.56 = { by axiom 3 (initial_state3) R->L }
% 0.24/0.56 ifeq(holds(on(c, d), s0), true, ifeq(holds(clear(c), s0), true, ifeq(holds(empty, s0), true, holds(clear(d), do(pickup(c), s0)), true), true), true)
% 0.24/0.56 = { by axiom 5 (pickup_2) }
% 0.24/0.56 true
% 0.24/0.56 % SZS output end Proof
% 0.24/0.56
% 0.24/0.56 RESULT: Unsatisfiable (the axioms are contradictory).
%------------------------------------------------------------------------------