- : unit = () - : unit = () h : heuristic = - : unit = () APPLY CRITERIA (Marked dependency pairs) TRS termination of: [1] last(nil) -> 0 [2] last(cons(x,nil)) -> x [3] last(cons(x,cons(y,xs))) -> last(cons(y,xs)) [4] del(x,nil) -> nil [5] del(x,cons(y,xs)) -> if(eq(x,y),x,y,xs) [6] if(true,x,y,xs) -> xs [7] if(false,x,y,xs) -> cons(y,del(x,xs)) [8] eq(0,0) -> true [9] eq(0,s(y)) -> false [10] eq(s(x),0) -> false [11] eq(s(x),s(y)) -> eq(x,y) [12] reverse(nil) -> nil [13] reverse(cons(x,xs)) -> cons(last(cons(x,xs)),reverse(del(last(cons(x,xs)),cons(x,xs)))) Sub problem: guided: DP termination of: END GUIDED APPLY CRITERIA (Graph splitting) Found 4 components: { --> } { --> --> } { --> } { --> } APPLY CRITERIA (Subterm criterion) APPLY CRITERIA (Choosing graph) Trying to solve the following constraints: { last(nil) >= 0 ; last(cons(x,nil)) >= x ; last(cons(x,cons(y,xs))) >= last(cons(y,xs)) ; del(x,nil) >= nil ; del(x,cons(y,xs)) >= if(eq(x,y),x,y,xs) ; if(true,x,y,xs) >= xs ; if(false,x,y,xs) >= cons(y,del(x,xs)) ; eq(0,0) >= true ; eq(0,s(y)) >= false ; eq(s(x),0) >= false ; eq(s(x),s(y)) >= eq(x,y) ; reverse(nil) >= nil ; reverse(cons(x,xs)) >= cons(last(cons(x,xs)), reverse(del(last(cons(x,xs)),cons(x,xs)))) ; Marked_reverse(cons(x,xs)) >= Marked_reverse(del(last(cons(x,xs)),cons(x,xs))) ; } + Disjunctions:{ { Marked_reverse(cons(x,xs)) > Marked_reverse(del(last(cons(x,xs)),cons(x,xs))) ; } } === TIMER virtual : 10.000000 === Entering poly_solver Starting Sat solver initialization Calling Sat solver... === STOPING TIMER virtual === === TIMER real : 10.000000 === === STOPING TIMER real === Sat solver returned === STOPING TIMER real === === STOPING TIMER virtual === No solution found for these parameters. Entering rpo_solver === TIMER virtual : 25.000000 === Search parameters: AFS type: 2 ; time limit: 25.. === STOPING TIMER virtual === === TIMER virtual : 15.000000 === Entering poly_solver Starting Sat solver initialization Calling Sat solver... === STOPING TIMER virtual === === TIMER real : 15.000000 === === STOPING TIMER real === Sat solver returned === STOPING TIMER real === === STOPING TIMER virtual === No solution found for these parameters. === TIMER virtual : 50.000000 === trying sub matrices of size: 1 Matrix interpretation constraints generated. Search parameters: LINEAR MATRIX 3x3 (strict=1x1) ; time limit: 50.. Termination constraints generated. Starting Sat solver initialization Calling Sat solver... === STOPING TIMER virtual === === TIMER real : 50.000000 === === STOPING TIMER real === Sat timeout reached === STOPING TIMER virtual === No solution found for these parameters. No solution found for these constraints. APPLY CRITERIA (Simple graph) Found the following constraints: { last(nil) >= 0 ; last(cons(x,nil)) >= x ; last(cons(x,cons(y,xs))) >= last(cons(y,xs)) ; del(x,nil) >= nil ; del(x,cons(y,xs)) >= if(eq(x,y),x,y,xs) ; if(true,x,y,xs) >= xs ; if(false,x,y,xs) >= cons(y,del(x,xs)) ; eq(0,0) >= true ; eq(0,s(y)) >= false ; eq(s(x),0) >= false ; eq(s(x),s(y)) >= eq(x,y) ; reverse(nil) >= nil ; reverse(cons(x,xs)) >= cons(last(cons(x,xs)), reverse(del(last(cons(x,xs)),cons(x,xs)))) ; Marked_reverse(cons(x,xs)) > Marked_reverse(del(last(cons(x,xs)),cons(x,xs))) ; } APPLY CRITERIA (SOLVE_ORD) Trying to solve the following constraints: { last(nil) >= 0 ; last(cons(x,nil)) >= x ; last(cons(x,cons(y,xs))) >= last(cons(y,xs)) ; del(x,nil) >= nil ; del(x,cons(y,xs)) >= if(eq(x,y),x,y,xs) ; if(true,x,y,xs) >= xs ; if(false,x,y,xs) >= cons(y,del(x,xs)) ; eq(0,0) >= true ; eq(0,s(y)) >= false ; eq(s(x),0) >= false ; eq(s(x),s(y)) >= eq(x,y) ; reverse(nil) >= nil ; reverse(cons(x,xs)) >= cons(last(cons(x,xs)), reverse(del(last(cons(x,xs)),cons(x,xs)))) ; Marked_reverse(cons(x,xs)) > Marked_reverse(del(last(cons(x,xs)),cons(x,xs))) ; } + Disjunctions:{ } === TIMER virtual : 10.000000 === Entering poly_solver Starting Sat solver initialization Calling Sat solver... === STOPING TIMER virtual === === TIMER real : 10.000000 === === STOPING TIMER real === Sat solver returned === STOPING TIMER real === === STOPING TIMER virtual === No solution found for these parameters. Entering rpo_solver === TIMER virtual : 25.000000 === Search parameters: AFS type: 2 ; time limit: 25.. === STOPING TIMER virtual === No solution found for these parameters.(2080 bt (2451) [72]) === TIMER virtual : 15.000000 === Entering poly_solver Starting Sat solver initialization Calling Sat solver... === STOPING TIMER virtual === === TIMER real : 15.000000 === === STOPING TIMER real === Sat solver returned === STOPING TIMER real === === STOPING TIMER virtual === No solution found for these parameters. === TIMER virtual : 50.000000 === trying sub matrices of size: 1 Matrix interpretation constraints generated. Search parameters: LINEAR MATRIX 3x3 (strict=1x1) ; time limit: 50.. Termination constraints generated. Starting Sat solver initialization Calling Sat solver... === STOPING TIMER virtual === === TIMER real : 50.000000 === === STOPING TIMER real === Sat timeout reached === STOPING TIMER virtual === No solution found for these parameters. No solution found for these constraints. APPLY CRITERIA (ID_CRIT) NOT SOLVED No proof found Cime worked for 107.672782 seconds (real time) Cime Exit Status: 0