%------------------------------------------------------------------------------ % File : Otter---3.3 % Problem : BOO080-1 : TPTP v8.1.0. Released v2.6.0. % Transfm : none % Format : tptp:raw % Command : otter-tptp-script %s % Computer : n026.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 12:47:42 EDT 2022 % Result : Unknown 142.55s 142.78s % Output : None % Verified : % SZS Type : - % Comments : %------------------------------------------------------------------------------ %----No solution output by system %------------------------------------------------------------------------------ %----ORIGINAL SYSTEM OUTPUT % 0.03/0.12 % Problem : BOO080-1 : TPTP v8.1.0. Released v2.6.0. % 0.03/0.13 % Command : otter-tptp-script %s % 0.12/0.33 % Computer : n026.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 02:49:09 EDT 2022 % 0.12/0.34 % CPUTime : % 142.55/142.78 ----- Otter 3.3f, August 2004 ----- % 142.55/142.78 The process was started by sandbox on n026.cluster.edu, % 142.55/142.78 Wed Jul 27 02:49:09 2022 % 142.55/142.78 The command was "./otter". The process ID is 1131. % 142.55/142.78 % 142.55/142.78 set(prolog_style_variables). % 142.55/142.78 set(auto). % 142.55/142.78 dependent: set(auto1). % 142.55/142.78 dependent: set(process_input). % 142.55/142.78 dependent: clear(print_kept). % 142.55/142.78 dependent: clear(print_new_demod). % 142.55/142.78 dependent: clear(print_back_demod). % 142.55/142.78 dependent: clear(print_back_sub). % 142.55/142.78 dependent: set(control_memory). % 142.55/142.78 dependent: assign(max_mem, 12000). % 142.55/142.78 dependent: assign(pick_given_ratio, 4). % 142.55/142.78 dependent: assign(stats_level, 1). % 142.55/142.78 dependent: assign(max_seconds, 10800). % 142.55/142.78 clear(print_given). % 142.55/142.78 % 142.55/142.78 list(usable). % 142.55/142.78 0 [] A=A. % 142.55/142.78 0 [] nand(nand(A,nand(A,nand(B,A))),nand(B,nand(C,A)))=B. % 142.55/142.78 0 [] nand(a,nand(b,nand(a,c)))!=nand(nand(nand(c,b),b),a). % 142.55/142.78 end_of_list. % 142.55/142.78 % 142.55/142.78 SCAN INPUT: prop=0, horn=1, equality=1, symmetry=0, max_lits=1. % 142.55/142.78 % 142.55/142.78 All clauses are units, and equality is present; the % 142.55/142.78 strategy will be Knuth-Bendix with positive clauses in sos. % 142.55/142.78 % 142.55/142.78 dependent: set(knuth_bendix). % 142.55/142.78 dependent: set(anl_eq). % 142.55/142.78 dependent: set(para_from). % 142.55/142.78 dependent: set(para_into). % 142.55/142.78 dependent: clear(para_from_right). % 142.55/142.78 dependent: clear(para_into_right). % 142.55/142.78 dependent: set(para_from_vars). % 142.55/142.78 dependent: set(eq_units_both_ways). % 142.55/142.78 dependent: set(dynamic_demod_all). % 142.55/142.78 dependent: set(dynamic_demod). % 142.55/142.78 dependent: set(order_eq). % 142.55/142.78 dependent: set(back_demod). % 142.55/142.78 dependent: set(lrpo). % 142.55/142.78 % 142.55/142.78 ------------> process usable: % 142.55/142.78 ** KEPT (pick-wt=15): 2 [copy,1,flip.1] nand(nand(nand(c,b),b),a)!=nand(a,nand(b,nand(a,c))). % 142.55/142.78 % 142.55/142.78 ------------> process sos: % 142.55/142.78 ** KEPT (pick-wt=3): 3 [] A=A. % 142.55/142.78 ** KEPT (pick-wt=15): 4 [] nand(nand(A,nand(A,nand(B,A))),nand(B,nand(C,A)))=B. % 142.55/142.78 ---> New Demodulator: 5 [new_demod,4] nand(nand(A,nand(A,nand(B,A))),nand(B,nand(C,A)))=B. % 142.55/142.78 Following clause subsumed by 3 during input processing: 0 [copy,3,flip.1] A=A. % 142.55/142.78 >>>> Starting back demodulation with 5. % 142.55/142.78 % 142.55/142.78 ======= end of input processing ======= % 142.55/142.78 % 142.55/142.78 =========== start of search =========== % 142.55/142.78 % 142.55/142.78 % 142.55/142.78 Resetting weight limit to 41. % 142.55/142.78 % 142.55/142.78 % 142.55/142.78 Resetting weight limit to 41. % 142.55/142.78 % 142.55/142.78 sos_size=199 % 142.55/142.78 % 142.55/142.78 Search stopped because sos empty. % 142.55/142.78 % 142.55/142.78 % 142.55/142.78 Search stopped because sos empty. % 142.55/142.78 % 142.55/142.78 ============ end of search ============ % 142.55/142.78 % 142.55/142.78 -------------- statistics ------------- % 142.55/142.78 clauses given 216 % 142.55/142.78 clauses generated 431922 % 142.55/142.78 clauses kept 224 % 142.55/142.78 clauses forward subsumed 11451 % 142.55/142.78 clauses back subsumed 0 % 142.55/142.78 Kbytes malloced 7812 % 142.55/142.78 % 142.55/142.78 ----------- times (seconds) ----------- % 142.55/142.78 user CPU time 140.72 (0 hr, 2 min, 20 sec) % 142.55/142.78 system CPU time 0.01 (0 hr, 0 min, 0 sec) % 142.55/142.78 wall-clock time 142 (0 hr, 2 min, 22 sec) % 142.55/142.78 % 142.55/142.78 Process 1131 finished Wed Jul 27 02:51:31 2022 % 142.55/142.78 Otter interrupted % 142.55/142.78 PROOF NOT FOUND %------------------------------------------------------------------------------