%------------------------------------------------------------------------------ % File : Otter---3.3 % Problem : LAT108-1 : TPTP v8.1.0. Released v3.1.0. % Transfm : none % Format : tptp:raw % Command : otter-tptp-script %s % Computer : n021.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 13:01:58 EDT 2022 % Result : Unknown 6.09s 6.28s % Output : None % Verified : % SZS Type : - % Comments : %------------------------------------------------------------------------------ %----No solution output by system %------------------------------------------------------------------------------ %----ORIGINAL SYSTEM OUTPUT % 0.03/0.12 % Problem : LAT108-1 : TPTP v8.1.0. Released v3.1.0. % 0.03/0.12 % Command : otter-tptp-script %s % 0.12/0.33 % Computer : n021.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 08:09:53 EDT 2022 % 0.12/0.33 % CPUTime : % 6.09/6.28 ----- Otter 3.3f, August 2004 ----- % 6.09/6.28 The process was started by sandbox2 on n021.cluster.edu, % 6.09/6.28 Wed Jul 27 08:09:53 2022 % 6.09/6.28 The command was "./otter". The process ID is 23332. % 6.09/6.28 % 6.09/6.28 set(prolog_style_variables). % 6.09/6.28 set(auto). % 6.09/6.28 dependent: set(auto1). % 6.09/6.28 dependent: set(process_input). % 6.09/6.28 dependent: clear(print_kept). % 6.09/6.28 dependent: clear(print_new_demod). % 6.09/6.28 dependent: clear(print_back_demod). % 6.09/6.28 dependent: clear(print_back_sub). % 6.09/6.28 dependent: set(control_memory). % 6.09/6.28 dependent: assign(max_mem, 12000). % 6.09/6.28 dependent: assign(pick_given_ratio, 4). % 6.09/6.28 dependent: assign(stats_level, 1). % 6.09/6.28 dependent: assign(max_seconds, 10800). % 6.09/6.28 clear(print_given). % 6.09/6.28 % 6.09/6.28 list(usable). % 6.09/6.28 0 [] A=A. % 6.09/6.28 0 [] meet(X,X)=X. % 6.09/6.28 0 [] join(X,X)=X. % 6.09/6.28 0 [] meet(X,join(X,Y))=X. % 6.09/6.28 0 [] join(X,meet(X,Y))=X. % 6.09/6.28 0 [] meet(X,Y)=meet(Y,X). % 6.09/6.28 0 [] join(X,Y)=join(Y,X). % 6.09/6.28 0 [] meet(meet(X,Y),Z)=meet(X,meet(Y,Z)). % 6.09/6.28 0 [] join(join(X,Y),Z)=join(X,join(Y,Z)). % 6.09/6.28 0 [] meet(X,join(Y,meet(X,meet(Z,U))))=meet(X,join(Y,meet(Z,meet(U,join(Y,meet(X,Z)))))). % 6.09/6.28 0 [] meet(a,join(b,meet(c,join(a,d))))!=meet(a,join(b,meet(c,join(b,join(d,meet(a,c)))))). % 6.09/6.28 end_of_list. % 6.09/6.28 % 6.09/6.28 SCAN INPUT: prop=0, horn=1, equality=1, symmetry=0, max_lits=1. % 6.09/6.28 % 6.09/6.28 All clauses are units, and equality is present; the % 6.09/6.28 strategy will be Knuth-Bendix with positive clauses in sos. % 6.09/6.28 % 6.09/6.28 dependent: set(knuth_bendix). % 6.09/6.28 dependent: set(anl_eq). % 6.09/6.28 dependent: set(para_from). % 6.09/6.28 dependent: set(para_into). % 6.09/6.28 dependent: clear(para_from_right). % 6.09/6.28 dependent: clear(para_into_right). % 6.09/6.28 dependent: set(para_from_vars). % 6.09/6.28 dependent: set(eq_units_both_ways). % 6.09/6.28 dependent: set(dynamic_demod_all). % 6.09/6.28 dependent: set(dynamic_demod). % 6.09/6.28 dependent: set(order_eq). % 6.09/6.28 dependent: set(back_demod). % 6.09/6.28 dependent: set(lrpo). % 6.09/6.28 % 6.09/6.28 ------------> process usable: % 6.09/6.28 ** KEPT (pick-wt=23): 2 [copy,1,flip.1] meet(a,join(b,meet(c,join(b,join(d,meet(a,c))))))!=meet(a,join(b,meet(c,join(a,d)))). % 6.09/6.28 % 6.09/6.28 ------------> process sos: % 6.09/6.28 ** KEPT (pick-wt=3): 3 [] A=A. % 6.09/6.28 ** KEPT (pick-wt=5): 4 [] meet(A,A)=A. % 6.09/6.28 ---> New Demodulator: 5 [new_demod,4] meet(A,A)=A. % 6.09/6.28 ** KEPT (pick-wt=5): 6 [] join(A,A)=A. % 6.09/6.28 ---> New Demodulator: 7 [new_demod,6] join(A,A)=A. % 6.09/6.28 ** KEPT (pick-wt=7): 8 [] meet(A,join(A,B))=A. % 6.09/6.28 ---> New Demodulator: 9 [new_demod,8] meet(A,join(A,B))=A. % 6.09/6.28 ** KEPT (pick-wt=7): 10 [] join(A,meet(A,B))=A. % 6.09/6.28 ---> New Demodulator: 11 [new_demod,10] join(A,meet(A,B))=A. % 6.09/6.28 ** KEPT (pick-wt=7): 12 [] meet(A,B)=meet(B,A). % 6.09/6.28 ** KEPT (pick-wt=7): 13 [] join(A,B)=join(B,A). % 6.09/6.28 ** KEPT (pick-wt=11): 14 [] meet(meet(A,B),C)=meet(A,meet(B,C)). % 6.09/6.28 ---> New Demodulator: 15 [new_demod,14] meet(meet(A,B),C)=meet(A,meet(B,C)). % 6.09/6.28 ** KEPT (pick-wt=11): 16 [] join(join(A,B),C)=join(A,join(B,C)). % 6.09/6.28 ---> New Demodulator: 17 [new_demod,16] join(join(A,B),C)=join(A,join(B,C)). % 6.09/6.28 ** KEPT (pick-wt=23): 18 [] meet(A,join(B,meet(A,meet(C,D))))=meet(A,join(B,meet(C,meet(D,join(B,meet(A,C)))))). % 6.09/6.28 Following clause subsumed by 3 during input processing: 0 [copy,3,flip.1] A=A. % 6.09/6.28 >>>> Starting back demodulation with 5. % 6.09/6.28 >>>> Starting back demodulation with 7. % 6.09/6.28 >>>> Starting back demodulation with 9. % 6.09/6.28 >>>> Starting back demodulation with 11. % 6.09/6.28 Following clause subsumed by 12 during input processing: 0 [copy,12,flip.1] meet(A,B)=meet(B,A). % 6.09/6.28 Following clause subsumed by 13 during input processing: 0 [copy,13,flip.1] join(A,B)=join(B,A). % 6.09/6.28 >>>> Starting back demodulation with 15. % 6.09/6.28 >>>> Starting back demodulation with 17. % 6.09/6.28 ** KEPT (pick-wt=23): 19 [copy,18,flip.1] meet(A,join(B,meet(C,meet(D,join(B,meet(A,C))))))=meet(A,join(B,meet(A,meet(C,D)))). % 6.09/6.28 Following clause subsumed by 18 during input processing: 0 [copy,19,flip.1] meet(A,join(B,meet(A,meet(C,D))))=meet(A,join(B,meet(C,meet(D,join(B,meet(A,C)))))). % 6.09/6.28 % 6.09/6.28 ======= end of input processing ======= % 6.09/6.28 % 6.09/6.28 =========== start of search =========== % 6.09/6.28 % 6.09/6.28 % 6.09/6.28 Resetting weight limit to 13. % 6.09/6.28 % 6.09/6.28 % 6.09/6.28 Resetting weight limit to 13. % 6.09/6.28 % 6.09/6.28 sos_size=595 % 6.09/6.28 % 6.09/6.28 Search stopped because sos empty. % 6.09/6.28 % 6.09/6.28 % 6.09/6.28 Search stopped because sos empty. % 6.09/6.28 % 6.09/6.28 ============ end of search ============ % 6.09/6.28 % 6.09/6.28 -------------- statistics ------------- % 6.09/6.28 clauses given 741 % 6.09/6.28 clauses generated 732683 % 6.09/6.28 clauses kept 786 % 6.09/6.28 clauses forward subsumed 263077 % 6.09/6.28 clauses back subsumed 0 % 6.09/6.28 Kbytes malloced 6835 % 6.09/6.28 % 6.09/6.28 ----------- times (seconds) ----------- % 6.09/6.28 user CPU time 4.39 (0 hr, 0 min, 4 sec) % 6.09/6.28 system CPU time 0.01 (0 hr, 0 min, 0 sec) % 6.09/6.28 wall-clock time 6 (0 hr, 0 min, 6 sec) % 6.09/6.28 % 6.09/6.28 Process 23332 finished Wed Jul 27 08:09:59 2022 % 6.09/6.28 Otter interrupted % 6.09/6.28 PROOF NOT FOUND %------------------------------------------------------------------------------