815.97/299.43	MAYBE
815.97/299.43	
815.97/299.43	Problem:
815.97/299.43	 strict:
815.97/299.43	  R(x,RT()) -> RT()
815.97/299.43	  W(x,WT()) -> WT()
815.97/299.43	 weak:
815.97/299.43	  RB() -> R(New(),RB())
815.97/299.43	  WB() -> W(New(),WB())
815.97/299.43	  top(ok(sys(read(r1,R(t,r2)),write(WT(),WB()),p))) ->
815.97/299.43	  top(check(sys(read(R(t,r1),r2),write(WT(),WB()),p)))
815.97/299.43	  top(ok(sys(read(RT(),RB()),write(WT(),W(t,w1)),p))) ->
815.97/299.43	  top(check(sys(read(RT(),RB()),write(W(t,WT()),w1),p)))
815.97/299.43	  top(ok(sys(read(r1,R(t,r2)),write(WT(),w1),PR()))) ->
815.97/299.43	  top(check(sys(read(R(t,r1),r2),write(WT(),w1),PW())))
815.97/299.43	  top(ok(sys(read(RT(),r2),write(WT(),W(t,w1)),PW()))) ->
815.97/299.43	  top(check(sys(read(RT(),r2),write(W(t,WT()),w1),PR())))
815.97/299.43	  check(Old()) -> ok(Old())
815.97/299.43	  check(R(x,y)) -> R(check(x),y)
815.97/299.43	  check(R(x,y)) -> R(x,check(y))
815.97/299.43	  check(W(x,y)) -> W(check(x),y)
815.97/299.43	  check(W(x,y)) -> W(x,check(y))
815.97/299.43	  check(read(x,y)) -> read(check(x),y)
815.97/299.43	  check(read(x,y)) -> read(x,check(y))
815.97/299.43	  check(write(x,y)) -> write(check(x),y)
815.97/299.43	  check(write(x,y)) -> write(x,check(y))
815.97/299.43	  check(sys(x,y,z)) -> sys(check(x),y,z)
815.97/299.43	  check(sys(x,y,z)) -> sys(x,check(y),z)
815.97/299.43	  check(sys(x,y,z)) -> sys(x,y,check(z))
815.97/299.43	  R(ok(x),y) -> ok(R(x,y))
815.97/299.43	  R(x,ok(y)) -> ok(R(x,y))
815.97/299.43	  W(ok(x),y) -> ok(W(x,y))
815.97/299.43	  W(x,ok(y)) -> ok(W(x,y))
815.97/299.43	  read(ok(x),y) -> ok(read(x,y))
815.97/299.43	  read(x,ok(y)) -> ok(read(x,y))
815.97/299.43	  write(ok(x),y) -> ok(write(x,y))
815.97/299.43	  write(x,ok(y)) -> ok(write(x,y))
815.97/299.43	  sys(ok(x),y,z) -> ok(sys(x,y,z))
815.97/299.43	  sys(x,ok(y),z) -> ok(sys(x,y,z))
815.97/299.43	  sys(x,y,ok(z)) -> ok(sys(x,y,z))
815.97/299.43	
815.97/299.43	Proof:
815.97/299.43	 Open
815.97/299.44	EOF