%------------------------------------------------------------------------------ % File : Otter---3.3 % Problem : LAT124-1 : TPTP v8.1.0. Released v3.1.0. % Transfm : none % Format : tptp:raw % Command : otter-tptp-script %s % Computer : n003.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 13:02:00 EDT 2022 % Result : Unknown 7.70s 7.88s % Output : None % Verified : % SZS Type : - % Comments : %------------------------------------------------------------------------------ %----No solution output by system %------------------------------------------------------------------------------ %----ORIGINAL SYSTEM OUTPUT % 0.03/0.12 % Problem : LAT124-1 : TPTP v8.1.0. Released v3.1.0. % 0.03/0.12 % Command : otter-tptp-script %s % 0.13/0.33 % Computer : n003.cluster.edu % 0.13/0.33 % Model : x86_64 x86_64 % 0.13/0.33 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz % 0.13/0.33 % Memory : 8042.1875MB % 0.13/0.33 % OS : Linux 3.10.0-693.el7.x86_64 % 0.13/0.33 % CPULimit : 300 % 0.13/0.33 % WCLimit : 300 % 0.13/0.33 % DateTime : Wed Jul 27 08:26:41 EDT 2022 % 0.13/0.33 % CPUTime : % 7.70/7.88 ----- Otter 3.3f, August 2004 ----- % 7.70/7.88 The process was started by sandbox on n003.cluster.edu, % 7.70/7.88 Wed Jul 27 08:26:41 2022 % 7.70/7.88 The command was "./otter". The process ID is 2896. % 7.70/7.88 % 7.70/7.88 set(prolog_style_variables). % 7.70/7.88 set(auto). % 7.70/7.88 dependent: set(auto1). % 7.70/7.88 dependent: set(process_input). % 7.70/7.88 dependent: clear(print_kept). % 7.70/7.88 dependent: clear(print_new_demod). % 7.70/7.88 dependent: clear(print_back_demod). % 7.70/7.88 dependent: clear(print_back_sub). % 7.70/7.88 dependent: set(control_memory). % 7.70/7.88 dependent: assign(max_mem, 12000). % 7.70/7.88 dependent: assign(pick_given_ratio, 4). % 7.70/7.88 dependent: assign(stats_level, 1). % 7.70/7.88 dependent: assign(max_seconds, 10800). % 7.70/7.88 clear(print_given). % 7.70/7.88 % 7.70/7.88 list(usable). % 7.70/7.88 0 [] A=A. % 7.70/7.88 0 [] meet(X,X)=X. % 7.70/7.88 0 [] join(X,X)=X. % 7.70/7.88 0 [] meet(X,join(X,Y))=X. % 7.70/7.88 0 [] join(X,meet(X,Y))=X. % 7.70/7.88 0 [] meet(X,Y)=meet(Y,X). % 7.70/7.88 0 [] join(X,Y)=join(Y,X). % 7.70/7.88 0 [] meet(meet(X,Y),Z)=meet(X,meet(Y,Z)). % 7.70/7.88 0 [] join(join(X,Y),Z)=join(X,join(Y,Z)). % 7.70/7.88 0 [] join(X,meet(Y,join(X,join(Z,U))))=join(X,meet(Y,join(Z,meet(join(X,U),join(Y,U))))). % 7.70/7.88 0 [] meet(a,join(b,c))!=join(meet(a,join(c,meet(a,b))),meet(a,join(b,meet(a,c)))). % 7.70/7.88 end_of_list. % 7.70/7.88 % 7.70/7.88 SCAN INPUT: prop=0, horn=1, equality=1, symmetry=0, max_lits=1. % 7.70/7.88 % 7.70/7.88 All clauses are units, and equality is present; the % 7.70/7.88 strategy will be Knuth-Bendix with positive clauses in sos. % 7.70/7.88 % 7.70/7.88 dependent: set(knuth_bendix). % 7.70/7.88 dependent: set(anl_eq). % 7.70/7.88 dependent: set(para_from). % 7.70/7.88 dependent: set(para_into). % 7.70/7.88 dependent: clear(para_from_right). % 7.70/7.88 dependent: clear(para_into_right). % 7.70/7.88 dependent: set(para_from_vars). % 7.70/7.88 dependent: set(eq_units_both_ways). % 7.70/7.88 dependent: set(dynamic_demod_all). % 7.70/7.88 dependent: set(dynamic_demod). % 7.70/7.88 dependent: set(order_eq). % 7.70/7.88 dependent: set(back_demod). % 7.70/7.88 dependent: set(lrpo). % 7.70/7.88 % 7.70/7.88 ------------> process usable: % 7.70/7.88 ** KEPT (pick-wt=21): 2 [copy,1,flip.1] join(meet(a,join(c,meet(a,b))),meet(a,join(b,meet(a,c))))!=meet(a,join(b,c)). % 7.70/7.88 % 7.70/7.88 ------------> process sos: % 7.70/7.88 ** KEPT (pick-wt=3): 3 [] A=A. % 7.70/7.88 ** KEPT (pick-wt=5): 4 [] meet(A,A)=A. % 7.70/7.88 ---> New Demodulator: 5 [new_demod,4] meet(A,A)=A. % 7.70/7.88 ** KEPT (pick-wt=5): 6 [] join(A,A)=A. % 7.70/7.88 ---> New Demodulator: 7 [new_demod,6] join(A,A)=A. % 7.70/7.88 ** KEPT (pick-wt=7): 8 [] meet(A,join(A,B))=A. % 7.70/7.88 ---> New Demodulator: 9 [new_demod,8] meet(A,join(A,B))=A. % 7.70/7.88 ** KEPT (pick-wt=7): 10 [] join(A,meet(A,B))=A. % 7.70/7.88 ---> New Demodulator: 11 [new_demod,10] join(A,meet(A,B))=A. % 7.70/7.88 ** KEPT (pick-wt=7): 12 [] meet(A,B)=meet(B,A). % 7.70/7.88 ** KEPT (pick-wt=7): 13 [] join(A,B)=join(B,A). % 7.70/7.88 ** KEPT (pick-wt=11): 14 [] meet(meet(A,B),C)=meet(A,meet(B,C)). % 7.70/7.88 ---> New Demodulator: 15 [new_demod,14] meet(meet(A,B),C)=meet(A,meet(B,C)). % 7.70/7.88 ** KEPT (pick-wt=11): 16 [] join(join(A,B),C)=join(A,join(B,C)). % 7.70/7.88 ---> New Demodulator: 17 [new_demod,16] join(join(A,B),C)=join(A,join(B,C)). % 7.70/7.88 ** KEPT (pick-wt=23): 18 [] join(A,meet(B,join(A,join(C,D))))=join(A,meet(B,join(C,meet(join(A,D),join(B,D))))). % 7.70/7.88 Following clause subsumed by 3 during input processing: 0 [copy,3,flip.1] A=A. % 7.70/7.88 >>>> Starting back demodulation with 5. % 7.70/7.88 >>>> Starting back demodulation with 7. % 7.70/7.88 >>>> Starting back demodulation with 9. % 7.70/7.88 >>>> Starting back demodulation with 11. % 7.70/7.88 Following clause subsumed by 12 during input processing: 0 [copy,12,flip.1] meet(A,B)=meet(B,A). % 7.70/7.88 Following clause subsumed by 13 during input processing: 0 [copy,13,flip.1] join(A,B)=join(B,A). % 7.70/7.88 >>>> Starting back demodulation with 15. % 7.70/7.88 >>>> Starting back demodulation with 17. % 7.70/7.88 ** KEPT (pick-wt=23): 19 [copy,18,flip.1] join(A,meet(B,join(C,meet(join(A,D),join(B,D)))))=join(A,meet(B,join(A,join(C,D)))). % 7.70/7.88 Following clause subsumed by 18 during input processing: 0 [copy,19,flip.1] join(A,meet(B,join(A,join(C,D))))=join(A,meet(B,join(C,meet(join(A,D),join(B,D))))). % 7.70/7.88 % 7.70/7.88 ======= end of input processing ======= % 7.70/7.88 % 7.70/7.88 =========== start of search =========== % 7.70/7.88 % 7.70/7.88 % 7.70/7.88 Resetting weight limit to 13. % 7.70/7.88 % 7.70/7.88 % 7.70/7.88 Resetting weight limit to 13. % 7.70/7.88 % 7.70/7.88 sos_size=780 % 7.70/7.88 % 7.70/7.88 Search stopped because sos empty. % 7.70/7.88 % 7.70/7.88 % 7.70/7.88 Search stopped because sos empty. % 7.70/7.88 % 7.70/7.88 ============ end of search ============ % 7.70/7.88 % 7.70/7.88 -------------- statistics ------------- % 7.70/7.88 clauses given 898 % 7.70/7.88 clauses generated 1063385 % 7.70/7.88 clauses kept 942 % 7.70/7.88 clauses forward subsumed 333045 % 7.70/7.88 clauses back subsumed 2 % 7.70/7.88 Kbytes malloced 6835 % 7.70/7.88 % 7.70/7.88 ----------- times (seconds) ----------- % 7.70/7.88 user CPU time 6.08 (0 hr, 0 min, 6 sec) % 7.70/7.88 system CPU time 0.01 (0 hr, 0 min, 0 sec) % 7.70/7.88 wall-clock time 8 (0 hr, 0 min, 8 sec) % 7.70/7.88 % 7.70/7.88 Process 2896 finished Wed Jul 27 08:26:49 2022 % 7.70/7.88 Otter interrupted % 7.70/7.88 PROOF NOT FOUND %------------------------------------------------------------------------------