- : unit = () h : heuristic = - : unit = () APPLY CRITERIA (Marked dependency pairs) TRS termination of: [1] ack(0,y) -> s(y) [2] ack(s(x),0) -> ack(x,s(0)) [3] ack(s(x),s(y)) -> ack(x,ack(s(x),y)) Sub problem: guided: DP termination of: END GUIDED APPLY CRITERIA (Graph splitting) Found 1 components: { --> --> --> --> --> --> --> --> } APPLY CRITERIA (Choosing graph) Trying to solve the following constraints: { ack(s(x),s(y)) >= ack(x,ack(s(x),y)) ; ack(s(x),0) >= ack(x,s(0)) ; ack(0,y) >= s(y) ; Marked_ack(s(x),s(y)) >= Marked_ack(s(x),y) ; Marked_ack(s(x),s(y)) >= Marked_ack(x,ack(s(x),y)) ; Marked_ack(s(x),0) >= Marked_ack(x,s(0)) ; } + Disjunctions:{ { Marked_ack(s(x),s(y)) > Marked_ack(s(x),y) ; } { Marked_ack(s(x),s(y)) > Marked_ack(x,ack(s(x),y)) ; } { Marked_ack(s(x),0) > Marked_ack(x,s(0)) ; } } === 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 === === STOPING TIMER virtual === constraint: ack(s(x),s(y)) >= ack(x,ack(s(x),y)) constraint: ack(s(x),0) >= ack(x,s(0)) constraint: ack(0,y) >= s(y) constraint: Marked_ack(s(x),s(y)) >= Marked_ack(s(x),y) constraint: Marked_ack(s(x),s(y)) >= Marked_ack(x,ack(s(x),y)) constraint: Marked_ack(s(x),0) >= Marked_ack(x,s(0)) APPLY CRITERIA (Graph splitting) Found 0 components: SOLVED { TRS termination of: [1] ack(0,y) -> s(y) [2] ack(s(x),0) -> ack(x,s(0)) [3] ack(s(x),s(y)) -> ack(x,ack(s(x),y)) , CRITERION: MDP [ { DP termination of: , CRITERION: SG [ { DP termination of: , CRITERION: ORD [ Solution found: RPO with AFS = AFS: and precedence: prec (All symbols are Lex.): { s < ack ; s < Marked_ack ; ack > s ; ack < Marked_ack ; Marked_ack > s ; Marked_ack > ack ; } ]} ]} ]} Cime worked for 0.034034 seconds (real time) Cime Exit Status: 0