%------------------------------------------------------------------------------ % File : Otter---3.3 % Problem : ROB032-2 : TPTP v8.1.0. Released v4.1.0. % Transfm : none % Format : tptp:raw % Command : otter-tptp-script %s % Computer : n028.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 13:12:24 EDT 2022 % Result : Unknown 4.09s 4.28s % Output : None % Verified : % SZS Type : - % Comments : %------------------------------------------------------------------------------ %----No solution output by system %------------------------------------------------------------------------------ %----ORIGINAL SYSTEM OUTPUT % 0.07/0.12 % Problem : ROB032-2 : TPTP v8.1.0. Released v4.1.0. % 0.07/0.13 % Command : otter-tptp-script %s % 0.13/0.33 % Computer : n028.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 % 0.13/0.34 % CPULimit : 300 % 0.13/0.34 % WCLimit : 300 % 0.13/0.34 % DateTime : Wed Jul 27 04:12:33 EDT 2022 % 0.13/0.34 % CPUTime : % 4.09/4.28 ----- Otter 3.3f, August 2004 ----- % 4.09/4.28 The process was started by sandbox2 on n028.cluster.edu, % 4.09/4.28 Wed Jul 27 04:12:34 2022 % 4.09/4.28 The command was "./otter". The process ID is 21635. % 4.09/4.28 % 4.09/4.28 set(prolog_style_variables). % 4.09/4.28 set(auto). % 4.09/4.28 dependent: set(auto1). % 4.09/4.28 dependent: set(process_input). % 4.09/4.28 dependent: clear(print_kept). % 4.09/4.28 dependent: clear(print_new_demod). % 4.09/4.28 dependent: clear(print_back_demod). % 4.09/4.28 dependent: clear(print_back_sub). % 4.09/4.28 dependent: set(control_memory). % 4.09/4.28 dependent: assign(max_mem, 12000). % 4.09/4.28 dependent: assign(pick_given_ratio, 4). % 4.09/4.28 dependent: assign(stats_level, 1). % 4.09/4.28 dependent: assign(max_seconds, 10800). % 4.09/4.28 clear(print_given). % 4.09/4.28 % 4.09/4.28 list(usable). % 4.09/4.28 0 [] A=A. % 4.09/4.28 0 [] add(X,Y)=add(Y,X). % 4.09/4.28 0 [] add(add(X,Y),Z)=add(X,add(Y,Z)). % 4.09/4.28 0 [] negate(add(negate(add(X,Y)),negate(add(X,negate(Y)))))=X. % 4.09/4.28 0 [] g(A)=negate(add(A,negate(A))). % 4.09/4.28 0 [] h(A)=add(A,add(A,add(A,g(A)))). % 4.09/4.28 0 [] add(X4,X5)!=X5. % 4.09/4.28 end_of_list. % 4.09/4.28 % 4.09/4.28 SCAN INPUT: prop=0, horn=1, equality=1, symmetry=0, max_lits=1. % 4.09/4.28 % 4.09/4.28 All clauses are units, and equality is present; the % 4.09/4.28 strategy will be Knuth-Bendix with positive clauses in sos. % 4.09/4.28 % 4.09/4.28 dependent: set(knuth_bendix). % 4.09/4.28 dependent: set(anl_eq). % 4.09/4.28 dependent: set(para_from). % 4.09/4.28 dependent: set(para_into). % 4.09/4.28 dependent: clear(para_from_right). % 4.09/4.28 dependent: clear(para_into_right). % 4.09/4.28 dependent: set(para_from_vars). % 4.09/4.28 dependent: set(eq_units_both_ways). % 4.09/4.28 dependent: set(dynamic_demod_all). % 4.09/4.28 dependent: set(dynamic_demod). % 4.09/4.28 dependent: set(order_eq). % 4.09/4.28 dependent: set(back_demod). % 4.09/4.28 dependent: set(lrpo). % 4.09/4.28 % 4.09/4.28 ------------> process usable: % 4.09/4.28 ** KEPT (pick-wt=5): 1 [] add(A,B)!=B. % 4.09/4.28 % 4.09/4.28 ------------> process sos: % 4.09/4.28 ** KEPT (pick-wt=3): 2 [] A=A. % 4.09/4.28 ** KEPT (pick-wt=7): 3 [] add(A,B)=add(B,A). % 4.09/4.28 ** KEPT (pick-wt=11): 4 [] add(add(A,B),C)=add(A,add(B,C)). % 4.09/4.28 ---> New Demodulator: 5 [new_demod,4] add(add(A,B),C)=add(A,add(B,C)). % 4.09/4.28 ** KEPT (pick-wt=13): 6 [] negate(add(negate(add(A,B)),negate(add(A,negate(B)))))=A. % 4.09/4.28 ---> New Demodulator: 7 [new_demod,6] negate(add(negate(add(A,B)),negate(add(A,negate(B)))))=A. % 4.09/4.28 ** KEPT (pick-wt=8): 9 [copy,8,flip.1] negate(add(A,negate(A)))=g(A). % 4.09/4.28 ---> New Demodulator: 10 [new_demod,9] negate(add(A,negate(A)))=g(A). % 4.09/4.28 ** KEPT (pick-wt=11): 11 [] h(A)=add(A,add(A,add(A,g(A)))). % 4.09/4.28 ---> New Demodulator: 12 [new_demod,11] h(A)=add(A,add(A,add(A,g(A)))). % 4.09/4.28 Following clause subsumed by 2 during input processing: 0 [copy,2,flip.1] A=A. % 4.09/4.28 Following clause subsumed by 3 during input processing: 0 [copy,3,flip.1] add(A,B)=add(B,A). % 4.09/4.28 >>>> Starting back demodulation with 5. % 4.09/4.28 >>>> Starting back demodulation with 7. % 4.09/4.28 >>>> Starting back demodulation with 10. % 4.09/4.28 >>>> Starting back demodulation with 12. % 4.09/4.28 % 4.09/4.28 ======= end of input processing ======= % 4.09/4.28 % 4.09/4.28 =========== start of search =========== % 4.09/4.28 % 4.09/4.28 % 4.09/4.28 Resetting weight limit to 13. % 4.09/4.28 % 4.09/4.28 % 4.09/4.28 Resetting weight limit to 13. % 4.09/4.28 % 4.09/4.28 sos_size=422 % 4.09/4.28 % 4.09/4.28 Search stopped because sos empty. % 4.09/4.28 % 4.09/4.28 % 4.09/4.28 Search stopped because sos empty. % 4.09/4.28 % 4.09/4.28 ============ end of search ============ % 4.09/4.28 % 4.09/4.28 -------------- statistics ------------- % 4.09/4.28 clauses given 493 % 4.09/4.28 clauses generated 178854 % 4.09/4.28 clauses kept 498 % 4.09/4.28 clauses forward subsumed 6807 % 4.09/4.28 clauses back subsumed 1 % 4.09/4.28 Kbytes malloced 7812 % 4.09/4.28 % 4.09/4.28 ----------- times (seconds) ----------- % 4.09/4.28 user CPU time 2.37 (0 hr, 0 min, 2 sec) % 4.09/4.28 system CPU time 0.00 (0 hr, 0 min, 0 sec) % 4.09/4.28 wall-clock time 3 (0 hr, 0 min, 3 sec) % 4.09/4.28 % 4.09/4.28 Process 21635 finished Wed Jul 27 04:12:37 2022 % 4.09/4.28 Otter interrupted % 4.09/4.28 PROOF NOT FOUND %------------------------------------------------------------------------------