%------------------------------------------------------------------------------ % File : Otter---3.3 % Problem : BOO008-2 : TPTP v8.1.0. Released v1.0.0. % Transfm : none % Format : tptp:raw % Command : otter-tptp-script %s % Computer : n010.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 12:47:32 EDT 2022 % Result : Unknown 2.95s 3.20s % Output : None % Verified : % SZS Type : - % Comments : %------------------------------------------------------------------------------ %----No solution output by system %------------------------------------------------------------------------------ %----ORIGINAL SYSTEM OUTPUT % 0.09/0.11 % Problem : BOO008-2 : TPTP v8.1.0. Released v1.0.0. % 0.09/0.12 % Command : otter-tptp-script %s % 0.12/0.32 % Computer : n010.cluster.edu % 0.12/0.32 % Model : x86_64 x86_64 % 0.12/0.32 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz % 0.12/0.32 % Memory : 8042.1875MB % 0.12/0.32 % OS : Linux 3.10.0-693.el7.x86_64 % 0.12/0.32 % CPULimit : 300 % 0.12/0.32 % WCLimit : 300 % 0.12/0.32 % DateTime : Wed Jul 27 02:24:25 EDT 2022 % 0.12/0.33 % CPUTime : % 1.68/1.88 ----- Otter 3.3f, August 2004 ----- % 1.68/1.88 The process was started by sandbox2 on n010.cluster.edu, % 1.68/1.88 Wed Jul 27 02:24:25 2022 % 1.68/1.88 The command was "./otter". The process ID is 14818. % 1.68/1.88 % 1.68/1.88 set(prolog_style_variables). % 1.68/1.88 set(auto). % 1.68/1.88 dependent: set(auto1). % 1.68/1.88 dependent: set(process_input). % 1.68/1.88 dependent: clear(print_kept). % 1.68/1.88 dependent: clear(print_new_demod). % 1.68/1.88 dependent: clear(print_back_demod). % 1.68/1.88 dependent: clear(print_back_sub). % 1.68/1.88 dependent: set(control_memory). % 1.68/1.88 dependent: assign(max_mem, 12000). % 1.68/1.88 dependent: assign(pick_given_ratio, 4). % 1.68/1.88 dependent: assign(stats_level, 1). % 1.68/1.88 dependent: assign(max_seconds, 10800). % 1.68/1.88 clear(print_given). % 1.68/1.88 % 1.68/1.88 list(usable). % 1.68/1.88 0 [] A=A. % 1.68/1.88 0 [] add(X,Y)=add(Y,X). % 1.68/1.88 0 [] multiply(X,Y)=multiply(Y,X). % 1.68/1.88 0 [] add(multiply(X,Y),Z)=multiply(add(X,Z),add(Y,Z)). % 1.68/1.88 0 [] add(X,multiply(Y,Z))=multiply(add(X,Y),add(X,Z)). % 1.68/1.88 0 [] multiply(add(X,Y),Z)=add(multiply(X,Z),multiply(Y,Z)). % 1.68/1.88 0 [] multiply(X,add(Y,Z))=add(multiply(X,Y),multiply(X,Z)). % 1.68/1.88 0 [] add(X,inverse(X))=multiplicative_identity. % 1.68/1.88 0 [] add(inverse(X),X)=multiplicative_identity. % 1.68/1.88 0 [] multiply(X,inverse(X))=additive_identity. % 1.68/1.88 0 [] multiply(inverse(X),X)=additive_identity. % 1.68/1.88 0 [] multiply(X,multiplicative_identity)=X. % 1.68/1.88 0 [] multiply(multiplicative_identity,X)=X. % 1.68/1.88 0 [] add(X,additive_identity)=X. % 1.68/1.88 0 [] add(additive_identity,X)=X. % 1.68/1.88 0 [] add(a,add(b,c))!=add(add(a,b),c). % 1.68/1.88 end_of_list. % 1.68/1.88 % 1.68/1.88 SCAN INPUT: prop=0, horn=1, equality=1, symmetry=0, max_lits=1. % 1.68/1.88 % 1.68/1.88 All clauses are units, and equality is present; the % 1.68/1.88 strategy will be Knuth-Bendix with positive clauses in sos. % 1.68/1.88 % 1.68/1.88 dependent: set(knuth_bendix). % 1.68/1.88 dependent: set(anl_eq). % 1.68/1.88 dependent: set(para_from). % 1.68/1.88 dependent: set(para_into). % 1.68/1.88 dependent: clear(para_from_right). % 1.68/1.88 dependent: clear(para_into_right). % 1.68/1.88 dependent: set(para_from_vars). % 1.68/1.88 dependent: set(eq_units_both_ways). % 1.68/1.88 dependent: set(dynamic_demod_all). % 1.68/1.88 dependent: set(dynamic_demod). % 1.68/1.88 dependent: set(order_eq). % 1.68/1.88 dependent: set(back_demod). % 1.68/1.88 dependent: set(lrpo). % 1.68/1.88 % 1.68/1.88 ------------> process usable: % 1.68/1.88 ** KEPT (pick-wt=11): 2 [copy,1,flip.1] add(add(a,b),c)!=add(a,add(b,c)). % 1.68/1.88 % 1.68/1.88 ------------> process sos: % 1.68/1.88 ** KEPT (pick-wt=3): 3 [] A=A. % 1.68/1.88 ** KEPT (pick-wt=7): 4 [] add(A,B)=add(B,A). % 1.68/1.88 ** KEPT (pick-wt=7): 5 [] multiply(A,B)=multiply(B,A). % 1.68/1.88 ** KEPT (pick-wt=13): 7 [copy,6,flip.1] multiply(add(A,B),add(C,B))=add(multiply(A,C),B). % 1.68/1.88 ---> New Demodulator: 8 [new_demod,7] multiply(add(A,B),add(C,B))=add(multiply(A,C),B). % 1.68/1.88 ** KEPT (pick-wt=13): 10 [copy,9,flip.1] multiply(add(A,B),add(A,C))=add(A,multiply(B,C)). % 1.68/1.88 ---> New Demodulator: 11 [new_demod,10] multiply(add(A,B),add(A,C))=add(A,multiply(B,C)). % 1.68/1.88 ** KEPT (pick-wt=13): 12 [] multiply(add(A,B),C)=add(multiply(A,C),multiply(B,C)). % 1.68/1.88 ---> New Demodulator: 13 [new_demod,12] multiply(add(A,B),C)=add(multiply(A,C),multiply(B,C)). % 1.68/1.88 ** KEPT (pick-wt=13): 14 [] multiply(A,add(B,C))=add(multiply(A,B),multiply(A,C)). % 1.68/1.88 ---> New Demodulator: 15 [new_demod,14] multiply(A,add(B,C))=add(multiply(A,B),multiply(A,C)). % 1.68/1.88 ** KEPT (pick-wt=6): 16 [] add(A,inverse(A))=multiplicative_identity. % 1.68/1.88 ---> New Demodulator: 17 [new_demod,16] add(A,inverse(A))=multiplicative_identity. % 1.68/1.88 ** KEPT (pick-wt=6): 18 [] add(inverse(A),A)=multiplicative_identity. % 1.68/1.88 ---> New Demodulator: 19 [new_demod,18] add(inverse(A),A)=multiplicative_identity. % 1.68/1.88 ** KEPT (pick-wt=6): 20 [] multiply(A,inverse(A))=additive_identity. % 1.68/1.88 ---> New Demodulator: 21 [new_demod,20] multiply(A,inverse(A))=additive_identity. % 1.68/1.88 ** KEPT (pick-wt=6): 22 [] multiply(inverse(A),A)=additive_identity. % 1.68/1.88 ---> New Demodulator: 23 [new_demod,22] multiply(inverse(A),A)=additive_identity. % 1.68/1.88 ** KEPT (pick-wt=5): 24 [] multiply(A,multiplicative_identity)=A. % 1.68/1.88 ---> New Demodulator: 25 [new_demod,24] multiply(A,multiplicative_identity)=A. % 1.68/1.88 ** KEPT (pick-wt=5): 26 [] multiply(multiplicative_identity,A)=A. % 1.68/1.88 ---> New Demodulator: 27 [new_demod,26] multiply(multiplicative_identity,A)=A. % 1.68/1.88 ** KEPT (pick-wt=5): 28 [] add(A,additive_identity)=A. % 1.68/1.88 ---> New Demodulator: 29 [new_demod,28] add(A,additive_identity)=A. % 1.68/1.88 ** KEPT (pick-wt=5): 30 [] add(additive_identity,A)=A. % 1.68/1.88 ---> New Demodulator: 31 [new_demod,30] add(additive_identity,A)=A. % 1.68/1.88 Following clause subsumed by 3 during input processing: 0 [copy,3,flip.1] A=A. % 2.95/3.20 Following clause subsumed by 4 during input processing: 0 [copy,4,flip.1] add(A,B)=add(B,A). % 2.95/3.20 Following clause subsumed by 5 during input processing: 0 [copy,5,flip.1] multiply(A,B)=multiply(B,A). % 2.95/3.20 >>>> Starting back demodulation with 8. % 2.95/3.20 >>>> Starting back demodulation with 11. % 2.95/3.20 >>>> Starting back demodulation with 13. % 2.95/3.20 >> back demodulating 10 with 13. % 2.95/3.20 >> back demodulating 7 with 13. % 2.95/3.20 >>>> Starting back demodulation with 15. % 2.95/3.20 >>>> Starting back demodulation with 17. % 2.95/3.20 >>>> Starting back demodulation with 19. % 2.95/3.20 >>>> Starting back demodulation with 21. % 2.95/3.20 >>>> Starting back demodulation with 23. % 2.95/3.20 >>>> Starting back demodulation with 25. % 2.95/3.20 >>>> Starting back demodulation with 27. % 2.95/3.20 >>>> Starting back demodulation with 29. % 2.95/3.20 >>>> Starting back demodulation with 31. % 2.95/3.20 >>>> Starting back demodulation with 33. % 2.95/3.20 >>>> Starting back demodulation with 35. % 2.95/3.20 % 2.95/3.20 ======= end of input processing ======= % 2.95/3.20 % 2.95/3.20 =========== start of search =========== % 2.95/3.20 % 2.95/3.20 % 2.95/3.20 Resetting weight limit to 10. % 2.95/3.20 % 2.95/3.20 % 2.95/3.20 Resetting weight limit to 10. % 2.95/3.20 % 2.95/3.20 sos_size=290 % 2.95/3.20 % 2.95/3.20 Search stopped because sos empty. % 2.95/3.20 % 2.95/3.20 % 2.95/3.20 Search stopped because sos empty. % 2.95/3.20 % 2.95/3.20 ============ end of search ============ % 2.95/3.20 % 2.95/3.20 -------------- statistics ------------- % 2.95/3.20 clauses given 495 % 2.95/3.20 clauses generated 182336 % 2.95/3.20 clauses kept 734 % 2.95/3.20 clauses forward subsumed 63071 % 2.95/3.20 clauses back subsumed 4 % 2.95/3.20 Kbytes malloced 6835 % 2.95/3.20 % 2.95/3.20 ----------- times (seconds) ----------- % 2.95/3.20 user CPU time 1.31 (0 hr, 0 min, 1 sec) % 2.95/3.20 system CPU time 0.00 (0 hr, 0 min, 0 sec) % 2.95/3.20 wall-clock time 2 (0 hr, 0 min, 2 sec) % 2.95/3.20 % 2.95/3.20 Process 14818 finished Wed Jul 27 02:24:27 2022 % 2.95/3.20 Otter interrupted % 2.95/3.20 PROOF NOT FOUND %------------------------------------------------------------------------------