1.58/0.76	YES
1.58/0.77	
1.58/0.77	Problem:
1.58/0.77	 b(a(a(b(b(a(x1)))))) -> a(a(b(b(a(a(a(b(b(x1)))))))))
1.58/0.77	
1.58/0.77	Proof:
1.58/0.77	 Bounds Processor:
1.58/0.77	  bound: 1
1.58/0.77	  enrichment: match
1.58/0.77	  automaton:
1.58/0.77	   final states: {1}
1.58/0.77	   transitions:
1.58/0.77	    f20() -> 2*
1.58/0.77	    a0(10) -> 1*
1.58/0.77	    a0(5) -> 6*
1.58/0.77	    a0(9) -> 10*
1.58/0.77	    a0(4) -> 5*
1.58/0.77	    a0(6) -> 7*
1.58/0.77	    b0(7) -> 8*
1.58/0.77	    b0(2) -> 3*
1.58/0.77	    b0(8) -> 9*
1.58/0.77	    b0(3) -> 4*
1.58/0.77	    a1(15) -> 16*
1.58/0.77	    a1(19) -> 20*
1.58/0.77	    a1(14) -> 15*
1.58/0.77	    a1(18) -> 19*
1.58/0.77	    a1(13) -> 14*
1.58/0.77	    b1(17) -> 18*
1.58/0.77	    b1(12) -> 13*
1.58/0.77	    b1(16) -> 17*
1.58/0.77	    b1(11) -> 12*
1.58/0.77	    1 -> 12,3
1.58/0.77	    6 -> 11*
1.58/0.77	    20 -> 13,4
1.58/0.77	  problem:
1.58/0.77	   
1.58/0.77	  Qed
1.58/0.77	EOF