%------------------------------------------------------------------------------
% File : CSI_E---1.1
% Problem : LCL123-1 : TPTP v9.3.1. Bugfixed v2.3.0.
% Transfm : none
% Format : tptp:raw
% Command : java -jar mcs_scs.jar %d %s
% Computer : n012.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 : Mon Sep 7 11:20:22 AM UTC 2026
% Result : Unsatisfiable 0.08s 0.41s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.01 % Problem : LCL123-1 : TPTP v9.3.1. Bugfixed v2.3.0.
% 0.00/0.01 % Command : java -jar mcs_scs.jar %d %s
% 0.02/0.29 % Computer : n012.cluster.edu
% 0.02/0.29 % Model : x86_64 x86_64
% 0.02/0.29 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.02/0.29 % Memory : 8046.5625MB
% 0.02/0.29 % OS : Linux 6.8.0-71-generic
% 0.02/0.29 % CPULimit : 300
% 0.02/0.29 % WCLimit : 300
% 0.02/0.29 % DateTime : Fri Sep 4 22:28:27 UTC 2026
% 0.02/0.29 % CPUTime :
% 0.08/0.35 start to proof:theBenchmark.p
% 0.08/0.41 % Version : CSI_E---1.1
% 0.08/0.41 % Problem : theBenchmark.p
% 0.08/0.41 % Proof found!
% 0.08/0.41 # SZS status Unsatisfiable
% 0.08/0.41 % SZS output start Proof
% 0.08/0.41 cnf(condensed_detachment, axiom, (is_a_theorem(X2)|~is_a_theorem(equivalent(X1,X2))|~is_a_theorem(X1)), file('/export/starexec/sandbox/benchmark/theBenchmark.p', condensed_detachment)).
% 0.08/0.41 cnf(lg_2, axiom, (is_a_theorem(equivalent(X1,equivalent(X1,equivalent(equivalent(X2,X3),equivalent(equivalent(X2,X4),equivalent(X3,X4))))))), file('/export/starexec/sandbox/benchmark/theBenchmark.p', lg_2)).
% 0.08/0.41 cnf(prove_lg_4, negated_conjecture, (~is_a_theorem(equivalent(equivalent(equivalent(a,equivalent(b,c)),equivalent(e,equivalent(b,f))),equivalent(a,equivalent(e,equivalent(c,f)))))), file('/export/starexec/sandbox/benchmark/theBenchmark.p', prove_lg_4)).
% 0.08/0.41 cnf(c_0_3, plain, (is_a_theorem(X2)|~is_a_theorem(equivalent(X1,X2))|~is_a_theorem(X1)), inference(fof_simplification,[status(thm)],[condensed_detachment])).
% 0.08/0.41 cnf(c_0_4, plain, (is_a_theorem(X2)|~is_a_theorem(equivalent(X1,X2))|~is_a_theorem(X1)), c_0_3).
% 0.08/0.41 cnf(c_0_5, axiom, (is_a_theorem(equivalent(X1,equivalent(X1,equivalent(equivalent(X2,X3),equivalent(equivalent(X2,X4),equivalent(X3,X4))))))), lg_2).
% 0.08/0.41 cnf(c_0_6, plain, (is_a_theorem(equivalent(X1,equivalent(equivalent(X2,X3),equivalent(equivalent(X2,X4),equivalent(X3,X4)))))|~is_a_theorem(X1)), inference(spm,[status(thm)],[c_0_4, c_0_5])).
% 0.08/0.41 cnf(c_0_7, plain, (is_a_theorem(equivalent(equivalent(X1,X2),equivalent(equivalent(X1,X3),equivalent(X2,X3))))|~is_a_theorem(X4)), inference(spm,[status(thm)],[c_0_4, c_0_6])).
% 0.08/0.41 cnf(c_0_8, negated_conjecture, (~is_a_theorem(equivalent(equivalent(equivalent(a,equivalent(b,c)),equivalent(e,equivalent(b,f))),equivalent(a,equivalent(e,equivalent(c,f)))))), inference(fof_simplification,[status(thm)],[prove_lg_4])).
% 0.08/0.41 cnf(c_0_9, plain, (is_a_theorem(equivalent(equivalent(X1,X2),equivalent(X3,X2)))|~is_a_theorem(equivalent(X1,X3))|~is_a_theorem(X4)), inference(spm,[status(thm)],[c_0_4, c_0_7])).
% 0.08/0.41 cnf(c_0_10, negated_conjecture, (~is_a_theorem(equivalent(equivalent(equivalent(a,equivalent(b,c)),equivalent(e,equivalent(b,f))),equivalent(a,equivalent(e,equivalent(c,f)))))), c_0_8).
% 0.08/0.41 cnf(c_0_11, plain, (is_a_theorem(equivalent(X1,X2))|~is_a_theorem(equivalent(X3,X2))|~is_a_theorem(equivalent(X3,X1))|~is_a_theorem(X4)), inference(spm,[status(thm)],[c_0_4, c_0_9])).
% 0.08/0.41 cnf(c_0_12, negated_conjecture, (~is_a_theorem(equivalent(X1,equivalent(equivalent(a,equivalent(b,c)),equivalent(e,equivalent(b,f)))))|~is_a_theorem(equivalent(X1,equivalent(a,equivalent(e,equivalent(c,f)))))|~is_a_theorem(X2)), inference(spm,[status(thm)],[c_0_10, c_0_11])).
% 0.08/0.41 cnf(c_0_13, negated_conjecture, (~is_a_theorem(equivalent(X1,equivalent(equivalent(a,equivalent(b,c)),equivalent(e,equivalent(b,f)))))|~is_a_theorem(equivalent(X1,equivalent(a,equivalent(e,equivalent(c,f)))))), inference(spm,[status(thm)],[c_0_12, c_0_5])).
% 0.08/0.41 cnf(c_0_14, negated_conjecture, (~is_a_theorem(equivalent(equivalent(X1,equivalent(e,equivalent(b,f))),equivalent(a,equivalent(e,equivalent(c,f)))))|~is_a_theorem(equivalent(X1,equivalent(a,equivalent(b,c))))|~is_a_theorem(X2)), inference(spm,[status(thm)],[c_0_13, c_0_9])).
% 0.08/0.41 cnf(c_0_15, negated_conjecture, (~is_a_theorem(equivalent(equivalent(X1,equivalent(e,equivalent(b,f))),equivalent(a,equivalent(e,equivalent(c,f)))))|~is_a_theorem(equivalent(X1,equivalent(a,equivalent(b,c))))), inference(spm,[status(thm)],[c_0_14, c_0_5])).
% 0.08/0.41 cnf(c_0_16, negated_conjecture, (~is_a_theorem(equivalent(X1,equivalent(a,equivalent(e,equivalent(c,f)))))|~is_a_theorem(equivalent(X1,equivalent(X2,equivalent(e,equivalent(b,f)))))|~is_a_theorem(equivalent(X2,equivalent(a,equivalent(b,c))))|~is_a_theorem(X3)), inference(spm,[status(thm)],[c_0_15, c_0_11])).
% 0.08/0.41 cnf(c_0_17, negated_conjecture, (~is_a_theorem(equivalent(X1,equivalent(a,equivalent(e,equivalent(c,f)))))|~is_a_theorem(equivalent(X1,equivalent(X2,equivalent(e,equivalent(b,f)))))|~is_a_theorem(equivalent(X2,equivalent(a,equivalent(b,c))))), inference(spm,[status(thm)],[c_0_16, c_0_5])).
% 0.08/0.41 cnf(c_0_18, plain, (is_a_theorem(equivalent(equivalent(X1,X2),equivalent(X3,X2)))|~is_a_theorem(equivalent(X1,X3))), inference(spm,[status(thm)],[c_0_9, c_0_5])).
% 0.08/0.41 cnf(c_0_19, negated_conjecture, (~is_a_theorem(equivalent(equivalent(X1,equivalent(e,equivalent(c,f))),equivalent(X2,equivalent(e,equivalent(b,f)))))|~is_a_theorem(equivalent(X2,equivalent(a,equivalent(b,c))))|~is_a_theorem(equivalent(X1,a))), inference(spm,[status(thm)],[c_0_17, c_0_18])).
% 0.08/0.41 cnf(c_0_20, negated_conjecture, (~is_a_theorem(equivalent(X1,equivalent(X2,equivalent(e,equivalent(b,f)))))|~is_a_theorem(equivalent(X1,equivalent(X3,equivalent(e,equivalent(c,f)))))|~is_a_theorem(equivalent(X2,equivalent(a,equivalent(b,c))))|~is_a_theorem(equivalent(X3,a))|~is_a_theorem(X4)), inference(spm,[status(thm)],[c_0_19, c_0_11])).
% 0.08/0.41 cnf(c_0_21, plain, (is_a_theorem(equivalent(equivalent(X1,X2),equivalent(equivalent(X1,X3),equivalent(X2,X3))))), inference(spm,[status(thm)],[c_0_7, c_0_5])).
% 0.08/0.41 cnf(c_0_22, negated_conjecture, (~is_a_theorem(equivalent(equivalent(X1,e),equivalent(X2,equivalent(e,equivalent(b,f)))))|~is_a_theorem(equivalent(X2,equivalent(a,equivalent(b,c))))|~is_a_theorem(equivalent(equivalent(X1,equivalent(c,f)),a))|~is_a_theorem(X3)), inference(spm,[status(thm)],[c_0_20, c_0_21])).
% 0.08/0.41 cnf(c_0_23, negated_conjecture, (~is_a_theorem(equivalent(equivalent(X1,equivalent(b,f)),equivalent(a,equivalent(b,c))))|~is_a_theorem(equivalent(equivalent(X1,equivalent(c,f)),a))|~is_a_theorem(X2)), inference(spm,[status(thm)],[c_0_22, c_0_21])).
% 0.08/0.41 cnf(c_0_24, negated_conjecture, (~is_a_theorem(equivalent(equivalent(X1,equivalent(b,f)),equivalent(a,equivalent(b,c))))|~is_a_theorem(equivalent(equivalent(X1,equivalent(c,f)),a))), inference(spm,[status(thm)],[c_0_23, c_0_21])).
% 0.08/0.41 cnf(c_0_25, plain, (is_a_theorem(equivalent(X1,X2))|~is_a_theorem(equivalent(X3,X2))|~is_a_theorem(equivalent(X3,X1))), inference(spm,[status(thm)],[c_0_11, c_0_5])).
% 0.08/0.41 cnf(c_0_26, negated_conjecture, (~is_a_theorem(equivalent(equivalent(X1,equivalent(c,f)),a))|~is_a_theorem(equivalent(X2,equivalent(a,equivalent(b,c))))|~is_a_theorem(equivalent(X2,equivalent(X1,equivalent(b,f))))), inference(spm,[status(thm)],[c_0_24, c_0_25])).
% 0.08/0.41 cnf(c_0_27, negated_conjecture, (~is_a_theorem(equivalent(equivalent(X1,equivalent(b,c)),equivalent(X2,equivalent(b,f))))|~is_a_theorem(equivalent(equivalent(X2,equivalent(c,f)),a))|~is_a_theorem(equivalent(X1,a))), inference(spm,[status(thm)],[c_0_26, c_0_18])).
% 0.08/0.41 cnf(c_0_28, plain, (is_a_theorem(equivalent(equivalent(equivalent(X1,X2),equivalent(X3,X2)),X4))|~is_a_theorem(equivalent(equivalent(X1,X3),X4))), inference(spm,[status(thm)],[c_0_25, c_0_21])).
% 0.08/0.41 cnf(c_0_29, plain, (is_a_theorem(X1)|~is_a_theorem(equivalent(X2,X1))|~is_a_theorem(equivalent(X2,X3))|~is_a_theorem(X3)|~is_a_theorem(X4)), inference(spm,[status(thm)],[c_0_4, c_0_11])).
% 0.08/0.41 cnf(c_0_30, negated_conjecture, (~is_a_theorem(equivalent(equivalent(X1,b),equivalent(X2,equivalent(b,f))))|~is_a_theorem(equivalent(equivalent(X2,equivalent(c,f)),a))|~is_a_theorem(equivalent(equivalent(X1,c),a))), inference(spm,[status(thm)],[c_0_27, c_0_28])).
% 0.08/0.41 cnf(c_0_31, plain, (is_a_theorem(X1)|~is_a_theorem(equivalent(X2,X1))|~is_a_theorem(equivalent(X2,X3))|~is_a_theorem(X3)), inference(spm,[status(thm)],[c_0_29, c_0_21])).
% 0.08/0.41 cnf(c_0_32, negated_conjecture, (~is_a_theorem(equivalent(equivalent(X1,c),a))), inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_30, c_0_21]), c_0_28])).
% 0.08/0.41 cnf(c_0_33, plain, (is_a_theorem(equivalent(X1,X2))|~is_a_theorem(equivalent(equivalent(X3,X2),X4))|~is_a_theorem(equivalent(X3,X1))|~is_a_theorem(X4)), inference(spm,[status(thm)],[c_0_31, c_0_18])).
% 0.08/0.41 cnf(c_0_34, negated_conjecture, (~is_a_theorem(equivalent(equivalent(X1,a),X2))|~is_a_theorem(equivalent(X1,equivalent(X3,c)))|~is_a_theorem(X2)), inference(spm,[status(thm)],[c_0_32, c_0_33])).
% 0.08/0.41 cnf(c_0_35, negated_conjecture, (~is_a_theorem(equivalent(equivalent(equivalent(X1,c),a),X2))|~is_a_theorem(equivalent(X1,X3))|~is_a_theorem(X2)), inference(spm,[status(thm)],[c_0_34, c_0_18])).
% 0.08/0.41 cnf(c_0_36, negated_conjecture, (~is_a_theorem(equivalent(equivalent(equivalent(X1,c),a),X2))|~is_a_theorem(X2)), inference(spm,[status(thm)],[c_0_35, c_0_5])).
% 0.08/0.41 cnf(c_0_37, negated_conjecture, (~is_a_theorem(equivalent(equivalent(equivalent(X1,c),X2),equivalent(a,X2)))), inference(spm,[status(thm)],[c_0_36, c_0_21])).
% 0.08/0.41 cnf(c_0_38, negated_conjecture, (~is_a_theorem(equivalent(equivalent(X1,X2),equivalent(a,equivalent(X2,c))))), inference(spm,[status(thm)],[c_0_37, c_0_28])).
% 0.08/0.41 cnf(c_0_39, negated_conjecture, (~is_a_theorem(equivalent(X1,equivalent(a,equivalent(X2,c))))|~is_a_theorem(equivalent(X1,equivalent(X3,X2)))), inference(spm,[status(thm)],[c_0_38, c_0_25])).
% 0.08/0.41 cnf(c_0_40, negated_conjecture, (~is_a_theorem(equivalent(equivalent(X1,equivalent(X2,c)),equivalent(X3,X2)))|~is_a_theorem(equivalent(X1,a))), inference(spm,[status(thm)],[c_0_39, c_0_18])).
% 0.08/0.41 cnf(c_0_41, negated_conjecture, (~is_a_theorem(equivalent(X1,a))), inference(spm,[status(thm)],[c_0_40, c_0_5])).
% 0.08/0.41 cnf(c_0_42, negated_conjecture, (~is_a_theorem(equivalent(equivalent(X1,a),X2))|~is_a_theorem(equivalent(X1,X3))|~is_a_theorem(X2)), inference(spm,[status(thm)],[c_0_41, c_0_33])).
% 0.08/0.41 cnf(c_0_43, negated_conjecture, (~is_a_theorem(equivalent(equivalent(X1,a),X2))|~is_a_theorem(X2)), inference(spm,[status(thm)],[c_0_42, c_0_5])).
% 0.08/0.41 cnf(c_0_44, negated_conjecture, (~is_a_theorem(equivalent(equivalent(X1,X2),equivalent(a,X2)))), inference(spm,[status(thm)],[c_0_43, c_0_21])).
% 0.08/0.41 cnf(c_0_45, negated_conjecture, (~is_a_theorem(equivalent(equivalent(X1,X2),equivalent(a,equivalent(X2,X3))))), inference(spm,[status(thm)],[c_0_44, c_0_28])).
% 0.08/0.41 cnf(c_0_46, negated_conjecture, (~is_a_theorem(equivalent(X1,equivalent(a,equivalent(X2,X3))))|~is_a_theorem(equivalent(X1,equivalent(X4,X2)))), inference(spm,[status(thm)],[c_0_45, c_0_25])).
% 0.08/0.41 cnf(c_0_47, negated_conjecture, (~is_a_theorem(equivalent(a,equivalent(X1,equivalent(X2,X3))))), inference(spm,[status(thm)],[c_0_46, c_0_5])).
% 0.08/0.41 cnf(c_0_48, negated_conjecture, ($false), inference(spm,[status(thm)],[c_0_47, c_0_5]), ['proof']).
% 0.08/0.41 % SZS output end Proof
% 0.08/0.41 % User time : 0.032 s
% 0.08/0.41 % System time : 0.003 s
% 0.08/0.41 % Total time : 0.035 s
% 0.08/0.41 % User time : 0.155 s
% 0.08/0.41 % System time : 0.016 s
% 0.08/0.41 % Total time : 0.171 s
% 0.08/0.41
%------------------------------------------------------------------------------