/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- NO The system was reversed. Remains to prove termination of the 2-rule system { a a a a -> c c a c a , c c c -> a a a } Loop of length 7 starting with a string of length 13 using right expansion and the encoding {a=a, c=b}: .aaaa.aaaaaaaaa rule aaaa -> bbaba at position 0 .bbaba.aaaaaaaaa rule aaaa -> bbaba at position 4 .bbabbbaba.aaaaaa rule bbb -> aaa at position 3 .bbaaaaaba.aaaaaa rule aaaa -> bbaba at position 8 .bbaaaaabbbaba.aaa rule bbb -> aaa at position 7 .bbaaaaaaaaaba.aaa rule aaaa -> bbaba at position 12 .bbaaaaaaaaabbbaba. rule bbb -> aaa at position 11 .bbaaaaaaaaaaaaaba.