YES bbbax1baabx1babax1aaabx1aabbx1bbbax12.1abbbx1baabx1ababx1baaax1bbaax1abbbx1abbbx1baabx1abbbx1aabx1abbbx1abx1ababx1baaax1ababx1aaax1ababx1aax1ababx1ax1bbaax1abbbx1bbaax1bbbx1bbaax1bbx1bbaax1bx1true1a1111b1111b1111a1111abbbx1baabx1ababx1baaax1bbaax1abbbx11161a152411b114341b141411a101341AProVEAProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Statistics for single proof: 100.00 % (5 real / 0 unknown / 0 assumptions / 5 total proof steps)http://aprove.informatik.rwth-aachen.deJohnDoe