%------------------------------------------------------------------------------ % File : Otter---3.3 % Problem : MSC009+1 : TPTP v8.1.0. Released v2.0.0. % Transfm : none % Format : tptp:raw % Command : otter-tptp-script %s % Computer : n006.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 13:06:18 EDT 2022 % Result : Unknown 1.90s 2.10s % Output : None % Verified : % SZS Type : - % Comments : %------------------------------------------------------------------------------ %----No solution output by system %------------------------------------------------------------------------------ %----ORIGINAL SYSTEM OUTPUT % 0.02/0.11 % Problem : MSC009+1 : TPTP v8.1.0. Released v2.0.0. % 0.02/0.12 % Command : otter-tptp-script %s % 0.12/0.33 % Computer : n006.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 08:59:01 EDT 2022 % 0.12/0.33 % CPUTime : % 1.90/2.10 ----- Otter 3.3f, August 2004 ----- % 1.90/2.10 The process was started by sandbox2 on n006.cluster.edu, % 1.90/2.10 Wed Jul 27 08:59:02 2022 % 1.90/2.10 The command was "./otter". The process ID is 5535. % 1.90/2.10 % 1.90/2.10 set(prolog_style_variables). % 1.90/2.10 set(auto). % 1.90/2.10 dependent: set(auto1). % 1.90/2.10 dependent: set(process_input). % 1.90/2.10 dependent: clear(print_kept). % 1.90/2.10 dependent: clear(print_new_demod). % 1.90/2.10 dependent: clear(print_back_demod). % 1.90/2.10 dependent: clear(print_back_sub). % 1.90/2.10 dependent: set(control_memory). % 1.90/2.10 dependent: assign(max_mem, 12000). % 1.90/2.10 dependent: assign(pick_given_ratio, 4). % 1.90/2.10 dependent: assign(stats_level, 1). % 1.90/2.10 dependent: assign(max_seconds, 10800). % 1.90/2.10 clear(print_given). % 1.90/2.10 % 1.90/2.10 formula_list(usable). % 1.90/2.10 all X (female(X)<-> -male(X)). % 1.90/2.10 all X (person(X)<-> (exists Y (sex(X,Y)& (male(Y)|female(Y))))). % 1.90/2.10 all X (parent(X)<->person(X)& (exists Y (child(X,Y)&person(Y)))). % 1.90/2.10 all X (mother(X)<->parent(X)& (exists Y (sex(X,Y)&female(Y)))). % 1.90/2.10 all X (father(X)<->parent(X)& -mother(X)). % 1.90/2.10 all X (grandparent(X)<->parent(X)& (exists Y (child(X,Y)&parent(Y)))). % 1.90/2.10 all X (parent_with_sons_only(X)<->parent(X)& (all Y (child(X,Y)-> (exists Z (sex(Y,Z)&male(Z)))))). % 1.90/2.10 end_of_list. % 1.90/2.10 % 1.90/2.10 -------> usable clausifies to: % 1.90/2.10 % 1.90/2.10 list(usable). % 1.90/2.10 0 [] -female(X)| -male(X). % 1.90/2.10 0 [] female(X)|male(X). % 1.90/2.10 0 [] -person(X)|sex(X,$f1(X)). % 1.90/2.10 0 [] -person(X)|male($f1(X))|female($f1(X)). % 1.90/2.10 0 [] person(X)| -sex(X,Y)| -male(Y). % 1.90/2.10 0 [] person(X)| -sex(X,Y)| -female(Y). % 1.90/2.10 0 [] -parent(X)|person(X). % 1.90/2.10 0 [] -parent(X)|child(X,$f2(X)). % 1.90/2.10 0 [] -parent(X)|person($f2(X)). % 1.90/2.10 0 [] parent(X)| -person(X)| -child(X,Y)| -person(Y). % 1.90/2.10 0 [] -mother(X)|parent(X). % 1.90/2.10 0 [] -mother(X)|sex(X,$f3(X)). % 1.90/2.10 0 [] -mother(X)|female($f3(X)). % 1.90/2.10 0 [] mother(X)| -parent(X)| -sex(X,Y)| -female(Y). % 1.90/2.10 0 [] -father(X)|parent(X). % 1.90/2.10 0 [] -father(X)| -mother(X). % 1.90/2.10 0 [] father(X)| -parent(X)|mother(X). % 1.90/2.10 0 [] -grandparent(X)|parent(X). % 1.90/2.10 0 [] -grandparent(X)|child(X,$f4(X)). % 1.90/2.10 0 [] -grandparent(X)|parent($f4(X)). % 1.90/2.10 0 [] grandparent(X)| -parent(X)| -child(X,Y)| -parent(Y). % 1.90/2.10 0 [] -parent_with_sons_only(X)|parent(X). % 1.90/2.10 0 [] -parent_with_sons_only(X)| -child(X,Y)|sex(Y,$f5(X,Y)). % 1.90/2.10 0 [] -parent_with_sons_only(X)| -child(X,Y)|male($f5(X,Y)). % 1.90/2.10 0 [] parent_with_sons_only(X)| -parent(X)|child(X,$f6(X)). % 1.90/2.10 0 [] parent_with_sons_only(X)| -parent(X)| -sex($f6(X),Z)| -male(Z). % 1.90/2.10 end_of_list. % 1.90/2.10 % 1.90/2.10 SCAN INPUT: prop=0, horn=0, equality=0, symmetry=0, max_lits=4. % 1.90/2.10 % 1.90/2.10 This is a non-Horn set without equality. The strategy will % 1.90/2.10 be ordered hyper_res, unit deletion, and factoring, with % 1.90/2.10 satellites in sos and with nuclei in usable. % 1.90/2.10 % 1.90/2.10 dependent: set(hyper_res). % 1.90/2.10 dependent: set(factor). % 1.90/2.10 dependent: set(unit_deletion). % 1.90/2.10 % 1.90/2.10 ------------> process usable: % 1.90/2.10 ** KEPT (pick-wt=4): 1 [] -female(A)| -male(A). % 1.90/2.10 ** KEPT (pick-wt=6): 2 [] -person(A)|sex(A,$f1(A)). % 1.90/2.10 ** KEPT (pick-wt=8): 3 [] -person(A)|male($f1(A))|female($f1(A)). % 1.90/2.10 ** KEPT (pick-wt=7): 4 [] person(A)| -sex(A,B)| -male(B). % 1.90/2.10 ** KEPT (pick-wt=7): 5 [] person(A)| -sex(A,B)| -female(B). % 1.90/2.10 ** KEPT (pick-wt=4): 6 [] -parent(A)|person(A). % 1.90/2.10 ** KEPT (pick-wt=6): 7 [] -parent(A)|child(A,$f2(A)). % 1.90/2.10 ** KEPT (pick-wt=5): 8 [] -parent(A)|person($f2(A)). % 1.90/2.10 ** KEPT (pick-wt=9): 9 [] parent(A)| -person(A)| -child(A,B)| -person(B). % 1.90/2.10 ** KEPT (pick-wt=4): 10 [] -mother(A)|parent(A). % 1.90/2.10 ** KEPT (pick-wt=6): 11 [] -mother(A)|sex(A,$f3(A)). % 1.90/2.10 ** KEPT (pick-wt=5): 12 [] -mother(A)|female($f3(A)). % 1.90/2.10 ** KEPT (pick-wt=9): 13 [] mother(A)| -parent(A)| -sex(A,B)| -female(B). % 1.90/2.10 ** KEPT (pick-wt=4): 14 [] -father(A)|parent(A). % 1.90/2.10 ** KEPT (pick-wt=4): 15 [] -father(A)| -mother(A). % 1.90/2.10 ** KEPT (pick-wt=6): 16 [] father(A)| -parent(A)|mother(A). % 1.90/2.10 ** KEPT (pick-wt=4): 17 [] -grandparent(A)|parent(A). % 1.90/2.10 ** KEPT (pick-wt=6): 18 [] -grandparent(A)|child(A,$f4(A)). % 1.90/2.10 ** KEPT (pick-wt=5): 19 [] -grandparent(A)|parent($f4(A)). % 1.90/2.10 ** KEPT (pick-wt=9): 20 [] grandparent(A)| -parent(A)| -child(A,B)| -parent(B). % 1.90/2.10 ** KEPT (pick-wt=4): 21 [] -parent_with_sons_only(A)|parent(A). % 1.90/2.10 ** KEPT (pick-wt=10): 22 [] -parent_with_sons_only(A)| -child(A,B)|sex(B,$f5(A,B)). % 1.90/2.10 ** KEPT (pick-wt=9): 23 [] -parent_with_sons_only(A)| -child(A,B)|male($f5(A,B)). % 1.90/2.10 ** KEPT (pick-wt=8): 24 [] parent_with_sons_only(A)| -parent(A)|child(A,$f6(A)). % 1.90/2.10 ** KEPT (pick-wt=10): 25 [] parent_with_sons_only(A)| -parent(A)| -sex($f6(A),B)| -male(B). % 1.90/2.10 % 1.90/2.10 ------------> process sos: % 1.90/2.10 ** KEPT (pick-wt=4): 28 [] female(A)|male(A). % 1.90/2.10 28 back subsumes 3. % 1.90/2.10 % 1.90/2.10 ======= end of input processing ======= % 1.90/2.10 % 1.90/2.10 =========== start of search =========== % 1.90/2.10 % 1.90/2.10 Search stopped because sos empty. % 1.90/2.10 % 1.90/2.10 % 1.90/2.10 Search stopped because sos empty. % 1.90/2.10 % 1.90/2.10 ============ end of search ============ % 1.90/2.10 % 1.90/2.10 -------------- statistics ------------- % 1.90/2.10 clauses given 1 % 1.90/2.10 clauses generated 2 % 1.90/2.10 clauses kept 28 % 1.90/2.10 clauses forward subsumed 0 % 1.90/2.10 clauses back subsumed 1 % 1.90/2.10 Kbytes malloced 976 % 1.90/2.10 % 1.90/2.10 ----------- times (seconds) ----------- % 1.90/2.10 user CPU time 0.00 (0 hr, 0 min, 0 sec) % 1.90/2.10 system CPU time 0.00 (0 hr, 0 min, 0 sec) % 1.90/2.10 wall-clock time 1 (0 hr, 0 min, 1 sec) % 1.90/2.10 % 1.90/2.10 Process 5535 finished Wed Jul 27 08:59:03 2022 % 1.90/2.10 Otter interrupted % 1.90/2.10 PROOF NOT FOUND %------------------------------------------------------------------------------