%------------------------------------------------------------------------------ % File : Otter---3.3 % Problem : LAT044-1 : TPTP v8.1.0. Released v2.5.0. % Transfm : none % Format : tptp:raw % Command : otter-tptp-script %s % Computer : n019.cluster.edu % Model : x86_64 x86_64 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz % Memory : 8042.1875MB % OS : Linux 3.10.0-693.el7.x86_64 % CPULimit : 300s % WCLimit : 300s % DateTime : Wed Jul 27 13:01:51 EDT 2022 % Result : Unknown 4.75s 4.96s % Output : None % Verified : % SZS Type : - % Comments : %------------------------------------------------------------------------------ %----No solution output by system %------------------------------------------------------------------------------ %----ORIGINAL SYSTEM OUTPUT % 0.00/0.12 % Problem : LAT044-1 : TPTP v8.1.0. Released v2.5.0. % 0.00/0.12 % Command : otter-tptp-script %s % 0.12/0.33 % Computer : n019.cluster.edu % 0.12/0.33 % Model : x86_64 x86_64 % 0.12/0.33 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz % 0.12/0.33 % Memory : 8042.1875MB % 0.12/0.33 % OS : Linux 3.10.0-693.el7.x86_64 % 0.12/0.33 % CPULimit : 300 % 0.12/0.33 % WCLimit : 300 % 0.12/0.33 % DateTime : Wed Jul 27 08:30:52 EDT 2022 % 0.12/0.33 % CPUTime : % 1.68/1.90 ----- Otter 3.3f, August 2004 ----- % 1.68/1.90 The process was started by sandbox2 on n019.cluster.edu, % 1.68/1.90 Wed Jul 27 08:30:52 2022 % 1.68/1.90 The command was "./otter". The process ID is 17444. % 1.68/1.90 % 1.68/1.90 set(prolog_style_variables). % 1.68/1.90 set(auto). % 1.68/1.90 dependent: set(auto1). % 1.68/1.90 dependent: set(process_input). % 1.68/1.90 dependent: clear(print_kept). % 1.68/1.90 dependent: clear(print_new_demod). % 1.68/1.90 dependent: clear(print_back_demod). % 1.68/1.90 dependent: clear(print_back_sub). % 1.68/1.90 dependent: set(control_memory). % 1.68/1.90 dependent: assign(max_mem, 12000). % 1.68/1.90 dependent: assign(pick_given_ratio, 4). % 1.68/1.90 dependent: assign(stats_level, 1). % 1.68/1.90 dependent: assign(max_seconds, 10800). % 1.68/1.90 clear(print_given). % 1.68/1.90 % 1.68/1.90 list(usable). % 1.68/1.90 0 [] A=A. % 1.68/1.90 0 [] meet(X,X)=X. % 1.68/1.90 0 [] join(X,X)=X. % 1.68/1.90 0 [] meet(X,join(X,Y))=X. % 1.68/1.90 0 [] join(X,meet(X,Y))=X. % 1.68/1.90 0 [] meet(X,Y)=meet(Y,X). % 1.68/1.90 0 [] join(X,Y)=join(Y,X). % 1.68/1.90 0 [] meet(meet(X,Y),Z)=meet(X,meet(Y,Z)). % 1.68/1.90 0 [] join(join(X,Y),Z)=join(X,join(Y,Z)). % 1.68/1.90 0 [] complement(join(X,Y))=meet(complement(X),complement(Y)). % 1.68/1.90 0 [] complement(meet(X,Y))=join(complement(X),complement(Y)). % 1.68/1.90 0 [] join(complement(X),X)=n1. % 1.68/1.90 0 [] meet(complement(X),X)=n0. % 1.68/1.90 0 [] complement(complement(X))=X. % 1.68/1.90 0 [] join(X,meet(complement(X),join(X,Y)))=join(X,Y). % 1.68/1.90 0 [] join(meet(complement(a),join(a,b)),join(complement(b),meet(a,b)))!=n1. % 1.68/1.90 end_of_list. % 1.68/1.90 % 1.68/1.90 SCAN INPUT: prop=0, horn=1, equality=1, symmetry=0, max_lits=1. % 1.68/1.90 % 1.68/1.90 All clauses are units, and equality is present; the % 1.68/1.90 strategy will be Knuth-Bendix with positive clauses in sos. % 1.68/1.90 % 1.68/1.90 dependent: set(knuth_bendix). % 1.68/1.90 dependent: set(anl_eq). % 1.68/1.90 dependent: set(para_from). % 1.68/1.90 dependent: set(para_into). % 1.68/1.90 dependent: clear(para_from_right). % 1.68/1.90 dependent: clear(para_into_right). % 1.68/1.90 dependent: set(para_from_vars). % 1.68/1.90 dependent: set(eq_units_both_ways). % 1.68/1.90 dependent: set(dynamic_demod_all). % 1.68/1.90 dependent: set(dynamic_demod). % 1.68/1.90 dependent: set(order_eq). % 1.68/1.90 dependent: set(back_demod). % 1.68/1.90 dependent: set(lrpo). % 1.68/1.90 % 1.68/1.90 ------------> process usable: % 1.68/1.90 ** KEPT (pick-wt=15): 1 [] join(meet(complement(a),join(a,b)),join(complement(b),meet(a,b)))!=n1. % 1.68/1.90 % 1.68/1.90 ------------> process sos: % 1.68/1.90 ** KEPT (pick-wt=3): 2 [] A=A. % 1.68/1.90 ** KEPT (pick-wt=5): 3 [] meet(A,A)=A. % 1.68/1.90 ---> New Demodulator: 4 [new_demod,3] meet(A,A)=A. % 1.68/1.90 ** KEPT (pick-wt=5): 5 [] join(A,A)=A. % 1.68/1.90 ---> New Demodulator: 6 [new_demod,5] join(A,A)=A. % 1.68/1.90 ** KEPT (pick-wt=7): 7 [] meet(A,join(A,B))=A. % 1.68/1.90 ---> New Demodulator: 8 [new_demod,7] meet(A,join(A,B))=A. % 1.68/1.90 ** KEPT (pick-wt=7): 9 [] join(A,meet(A,B))=A. % 1.68/1.90 ---> New Demodulator: 10 [new_demod,9] join(A,meet(A,B))=A. % 1.68/1.90 ** KEPT (pick-wt=7): 11 [] meet(A,B)=meet(B,A). % 1.68/1.90 ** KEPT (pick-wt=7): 12 [] join(A,B)=join(B,A). % 1.68/1.90 ** KEPT (pick-wt=11): 13 [] meet(meet(A,B),C)=meet(A,meet(B,C)). % 1.68/1.90 ---> New Demodulator: 14 [new_demod,13] meet(meet(A,B),C)=meet(A,meet(B,C)). % 1.68/1.90 ** KEPT (pick-wt=11): 15 [] join(join(A,B),C)=join(A,join(B,C)). % 1.68/1.90 ---> New Demodulator: 16 [new_demod,15] join(join(A,B),C)=join(A,join(B,C)). % 1.68/1.90 ** KEPT (pick-wt=10): 17 [] complement(join(A,B))=meet(complement(A),complement(B)). % 1.68/1.90 ---> New Demodulator: 18 [new_demod,17] complement(join(A,B))=meet(complement(A),complement(B)). % 1.68/1.90 ** KEPT (pick-wt=10): 19 [] complement(meet(A,B))=join(complement(A),complement(B)). % 1.68/1.90 ---> New Demodulator: 20 [new_demod,19] complement(meet(A,B))=join(complement(A),complement(B)). % 1.68/1.90 ** KEPT (pick-wt=6): 21 [] join(complement(A),A)=n1. % 1.68/1.90 ---> New Demodulator: 22 [new_demod,21] join(complement(A),A)=n1. % 1.68/1.90 ** KEPT (pick-wt=6): 23 [] meet(complement(A),A)=n0. % 1.68/1.90 ---> New Demodulator: 24 [new_demod,23] meet(complement(A),A)=n0. % 1.68/1.90 ** KEPT (pick-wt=5): 25 [] complement(complement(A))=A. % 1.68/1.90 ---> New Demodulator: 26 [new_demod,25] complement(complement(A))=A. % 1.68/1.90 ** KEPT (pick-wt=12): 27 [] join(A,meet(complement(A),join(A,B)))=join(A,B). % 1.68/1.90 ---> New Demodulator: 28 [new_demod,27] join(A,meet(complement(A),join(A,B)))=join(A,B). % 1.68/1.90 Following clause subsumed by 2 during input processing: 0 [copy,2,flip.1] A=A. % 1.68/1.90 >>>> Starting back demodulation with 4. % 1.68/1.90 >>>> Starting back demodulation with 6. % 1.68/1.90 >>>> Starting back demodulation with 8. % 1.68/1.90 >>>> Starting back demodulation with 10. % 1.68/1.90 Following clause subsumed by 11 during input processing: 0 [copy,11,flip.1] meet(A,B)=meet(B,A). % 1.68/1.90 Following clause subsumed by 12 during input processing: 0 [copy,12,flip.1] join(A,B)=join(B,A). % 4.75/4.96 >>>> Starting back demodulation with 14. % 4.75/4.96 >>>> Starting back demodulation with 16. % 4.75/4.96 >>>> Starting back demodulation with 18. % 4.75/4.96 >>>> Starting back demodulation with 20. % 4.75/4.96 >>>> Starting back demodulation with 22. % 4.75/4.96 >>>> Starting back demodulation with 24. % 4.75/4.96 >>>> Starting back demodulation with 26. % 4.75/4.96 >>>> Starting back demodulation with 28. % 4.75/4.96 % 4.75/4.96 ======= end of input processing ======= % 4.75/4.96 % 4.75/4.96 =========== start of search =========== % 4.75/4.96 % 4.75/4.96 % 4.75/4.96 Resetting weight limit to 11. % 4.75/4.96 % 4.75/4.96 % 4.75/4.96 Resetting weight limit to 11. % 4.75/4.96 % 4.75/4.96 sos_size=585 % 4.75/4.96 % 4.75/4.96 Search stopped because sos empty. % 4.75/4.96 % 4.75/4.96 % 4.75/4.96 Search stopped because sos empty. % 4.75/4.96 % 4.75/4.96 ============ end of search ============ % 4.75/4.96 % 4.75/4.96 -------------- statistics ------------- % 4.75/4.96 clauses given 707 % 4.75/4.96 clauses generated 524141 % 4.75/4.96 clauses kept 722 % 4.75/4.96 clauses forward subsumed 219909 % 4.75/4.96 clauses back subsumed 0 % 4.75/4.96 Kbytes malloced 6835 % 4.75/4.96 % 4.75/4.96 ----------- times (seconds) ----------- % 4.75/4.96 user CPU time 3.05 (0 hr, 0 min, 3 sec) % 4.75/4.96 system CPU time 0.01 (0 hr, 0 min, 0 sec) % 4.75/4.96 wall-clock time 4 (0 hr, 0 min, 4 sec) % 4.75/4.96 % 4.75/4.96 Process 17444 finished Wed Jul 27 08:30:56 2022 % 4.75/4.96 Otter interrupted % 4.75/4.96 PROOF NOT FOUND %------------------------------------------------------------------------------