/// Use naive (no-levels) traversal (`morph_naive`). Enabled with `levelsoff`, disabled with `levelson`.
"unknown rewriter: {other}; expected one of: naive, morph, morph-[levelson]-[cache|inccache]-[prefilteron]-[fixedpoint]"
"unknown morph option '{other_token}', must be one of levelson|cache|inccache|prefilteron|fixedpoint"
"unknown solver family '{other}', expected one of: minion, sat-log, sat-direct, sat-order, smt[(bv|lia)-(arrays|atomic)][-nodiscrete]"