%------------------------------------------------------------------------------ % File : Otter---3.3 % Problem : SWW408-1 : TPTP v8.1.0. Released v5.2.0. % Transfm : none % Format : tptp:raw % Command : otter-tptp-script %s % Computer : n027.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 13:22:31 EDT 2022 % Result : Unknown 18.77s 18.98s % Output : None % Verified : % SZS Type : - % Comments : %------------------------------------------------------------------------------ %----No solution output by system %------------------------------------------------------------------------------ %----ORIGINAL SYSTEM OUTPUT % 0.03/0.11 % Problem : SWW408-1 : TPTP v8.1.0. Released v5.2.0. % 0.03/0.12 % Command : otter-tptp-script %s % 0.12/0.33 % Computer : n027.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 03:10:36 EDT 2022 % 0.12/0.33 % CPUTime : % 1.63/1.84 ----- Otter 3.3f, August 2004 ----- % 1.63/1.84 The process was started by sandbox2 on n027.cluster.edu, % 1.63/1.84 Wed Jul 27 03:10:36 2022 % 1.63/1.84 The command was "./otter". The process ID is 10322. % 1.63/1.84 % 1.63/1.84 set(prolog_style_variables). % 1.63/1.84 set(auto). % 1.63/1.84 dependent: set(auto1). % 1.63/1.84 dependent: set(process_input). % 1.63/1.84 dependent: clear(print_kept). % 1.63/1.84 dependent: clear(print_new_demod). % 1.63/1.84 dependent: clear(print_back_demod). % 1.63/1.84 dependent: clear(print_back_sub). % 1.63/1.84 dependent: set(control_memory). % 1.63/1.84 dependent: assign(max_mem, 12000). % 1.63/1.84 dependent: assign(pick_given_ratio, 4). % 1.63/1.84 dependent: assign(stats_level, 1). % 1.63/1.84 dependent: assign(max_seconds, 10800). % 1.63/1.84 clear(print_given). % 1.63/1.84 % 1.63/1.84 list(usable). % 1.63/1.84 0 [] A=A. % 1.63/1.84 0 [] sep(S,sep(T,Sigma))=sep(T,sep(S,Sigma)). % 1.63/1.84 0 [] sep(lseg(X,X),Sigma)=Sigma. % 1.63/1.84 0 [] -heap(sep(next(nil,Y),Sigma)). % 1.63/1.84 0 [] -heap(sep(lseg(nil,Y),Sigma))|Y=nil. % 1.63/1.84 0 [] -heap(sep(next(X,Y),sep(next(X,Z),Sigma))). % 1.63/1.84 0 [] -heap(sep(next(X,Y),sep(lseg(X,Z),Sigma)))|X=Z. % 1.63/1.84 0 [] -heap(sep(lseg(X,Y),sep(lseg(X,Z),Sigma)))|X=Y|X=Z. % 1.63/1.84 0 [] -heap(sep(next(X,Y),sep(lseg(Y,Z),Sigma)))|X=Y|heap(sep(lseg(X,Z),Sigma)). % 1.63/1.84 0 [] -heap(sep(lseg(X,Y),sep(lseg(Y,nil),Sigma)))|heap(sep(lseg(X,nil),Sigma)). % 1.63/1.84 0 [] -heap(sep(lseg(X,Y),sep(lseg(Y,Z),sep(next(Z,W),Sigma))))|heap(sep(lseg(X,Z),sep(next(Z,W),Sigma))). % 1.63/1.84 0 [] -heap(sep(lseg(X,Y),sep(lseg(Y,Z),sep(lseg(Z,W),Sigma))))|Z=W|heap(sep(lseg(X,Z),sep(lseg(Z,W),Sigma))). % 1.63/1.84 0 [] nil!=x1. % 1.63/1.84 0 [] nil!=x2. % 1.63/1.84 0 [] x1!=x2. % 1.63/1.84 0 [] x1!=x3. % 1.63/1.84 0 [] x2!=x3. % 1.63/1.84 0 [] heap(sep(next(x1,x2),sep(lseg(x3,nil),sep(next(x2,x3),emp)))). % 1.63/1.84 0 [] -heap(sep(lseg(x3,nil),emp)). % 1.63/1.84 end_of_list. % 1.63/1.84 % 1.63/1.84 SCAN INPUT: prop=0, horn=0, equality=1, symmetry=0, max_lits=3. % 1.63/1.84 % 1.63/1.84 This ia a non-Horn set with equality. The strategy will be % 1.63/1.84 Knuth-Bendix, ordered hyper_res, factoring, and unit % 1.63/1.84 deletion, with positive clauses in sos and nonpositive % 1.63/1.84 clauses in usable. % 1.63/1.84 % 1.63/1.84 dependent: set(knuth_bendix). % 1.63/1.84 dependent: set(anl_eq). % 1.63/1.84 dependent: set(para_from). % 1.63/1.84 dependent: set(para_into). % 1.63/1.84 dependent: clear(para_from_right). % 1.63/1.84 dependent: clear(para_into_right). % 1.63/1.84 dependent: set(para_from_vars). % 1.63/1.84 dependent: set(eq_units_both_ways). % 1.63/1.84 dependent: set(dynamic_demod_all). % 1.63/1.84 dependent: set(dynamic_demod). % 1.63/1.84 dependent: set(order_eq). % 1.63/1.84 dependent: set(back_demod). % 1.63/1.84 dependent: set(lrpo). % 1.63/1.84 dependent: set(hyper_res). % 1.63/1.84 dependent: set(unit_deletion). % 1.63/1.84 dependent: set(factor). % 1.63/1.84 % 1.63/1.84 ------------> process usable: % 1.63/1.84 ** KEPT (pick-wt=6): 1 [] -heap(sep(next(nil,A),B)). % 1.63/1.84 ** KEPT (pick-wt=9): 2 [] -heap(sep(lseg(nil,A),B))|A=nil. % 1.63/1.84 ** KEPT (pick-wt=10): 3 [] -heap(sep(next(A,B),sep(next(A,C),D))). % 1.63/1.84 ** KEPT (pick-wt=13): 4 [] -heap(sep(next(A,B),sep(lseg(A,C),D)))|A=C. % 1.63/1.84 ** KEPT (pick-wt=16): 5 [] -heap(sep(lseg(A,B),sep(lseg(A,C),D)))|A=B|A=C. % 1.63/1.84 ** KEPT (pick-wt=19): 6 [] -heap(sep(next(A,B),sep(lseg(B,C),D)))|A=B|heap(sep(lseg(A,C),D)). % 1.63/1.84 ** KEPT (pick-wt=16): 7 [] -heap(sep(lseg(A,B),sep(lseg(B,nil),C)))|heap(sep(lseg(A,nil),C)). % 1.63/1.84 ** KEPT (pick-wt=24): 8 [] -heap(sep(lseg(A,B),sep(lseg(B,C),sep(next(C,D),E))))|heap(sep(lseg(A,C),sep(next(C,D),E))). % 1.63/1.84 ** KEPT (pick-wt=27): 9 [] -heap(sep(lseg(A,B),sep(lseg(B,C),sep(lseg(C,D),E))))|C=D|heap(sep(lseg(A,C),sep(lseg(C,D),E))). % 1.63/1.84 ** KEPT (pick-wt=3): 11 [copy,10,flip.1] x1!=nil. % 1.63/1.84 ** KEPT (pick-wt=3): 13 [copy,12,flip.1] x2!=nil. % 1.63/1.84 ** KEPT (pick-wt=3): 15 [copy,14,flip.1] x2!=x1. % 1.63/1.84 ** KEPT (pick-wt=3): 17 [copy,16,flip.1] x3!=x1. % 1.63/1.84 ** KEPT (pick-wt=3): 19 [copy,18,flip.1] x3!=x2. % 1.63/1.84 ** KEPT (pick-wt=6): 20 [] -heap(sep(lseg(x3,nil),emp)). % 1.63/1.84 % 1.63/1.84 ------------> process sos: % 1.63/1.84 ** KEPT (pick-wt=3): 22 [] A=A. % 1.63/1.84 ** KEPT (pick-wt=11): 23 [] sep(A,sep(B,C))=sep(B,sep(A,C)). % 1.63/1.84 ** KEPT (pick-wt=7): 24 [] sep(lseg(A,A),B)=B. % 1.63/1.84 ---> New Demodulator: 25 [new_demod,24] sep(lseg(A,A),B)=B. % 1.63/1.84 ** KEPT (pick-wt=14): 26 [] heap(sep(next(x1,x2),sep(lseg(x3,nil),sep(next(x2,x3),emp)))). % 1.63/1.84 Following clause subsumed by 22 during input processing: 0 [copy,22,flip.1] A=A. % 1.63/1.84 Following clause subsumed by 23 during input processing: 0 [copy,23,flip.1] sep(A,sep(B,C))=sep(B,sep(A,C)). % 1.63/1.84 >>>> Starting back demodulation with 25. % 1.63/1.84 % 1.63/1.84 ======= end of input processing ======= % 1.63/1.84 % 1.63/1.84 =========== start of search =========== % 1.63/1.84 % 1.63/1.84 % 1.63/1.84 Resetting weight limit to 13. % 1.63/1.84 % 1.63/1.84 % 1.63/1.84 Resetting weight limit to 13. % 18.77/18.98 % 18.77/18.98 sos_size=472 % 18.77/18.98 % 18.77/18.98 % 18.77/18.98 Resetting weight limit to 12. % 18.77/18.98 % 18.77/18.98 % 18.77/18.98 Resetting weight limit to 12. % 18.77/18.98 % 18.77/18.98 sos_size=473 % 18.77/18.98 % 18.77/18.98 Search stopped because sos empty. % 18.77/18.98 % 18.77/18.98 % 18.77/18.98 Search stopped because sos empty. % 18.77/18.98 % 18.77/18.98 ============ end of search ============ % 18.77/18.98 % 18.77/18.98 -------------- statistics ------------- % 18.77/18.98 clauses given 535 % 18.77/18.98 clauses generated 763219 % 18.77/18.98 clauses kept 554 % 18.77/18.98 clauses forward subsumed 1094 % 18.77/18.98 clauses back subsumed 3 % 18.77/18.98 Kbytes malloced 7812 % 18.77/18.98 % 18.77/18.98 ----------- times (seconds) ----------- % 18.77/18.98 user CPU time 17.17 (0 hr, 0 min, 17 sec) % 18.77/18.98 system CPU time 0.01 (0 hr, 0 min, 0 sec) % 18.77/18.98 wall-clock time 19 (0 hr, 0 min, 19 sec) % 18.77/18.98 % 18.77/18.98 Process 10322 finished Wed Jul 27 03:10:55 2022 % 18.77/18.98 Otter interrupted % 18.77/18.98 PROOF NOT FOUND %------------------------------------------------------------------------------