/export/starexec/sandbox/solver/bin/starexec_run_Default /export/starexec/sandbox/benchmark/theBenchmark.xml /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- NO Input TRS: 1: U12(tt()) -> s(plus(N,M)) 2: U11(tt()) -> U12(tt()) 3: plus(N,0()) -> N 4: plus(N,s(M)) -> U11(tt()) Extra variable in rule 1.