Goal:
    A : Type  HA : ReflectEq A  x : option A  y : option A
  ============================
   (reflectProp (x = y) (eq_option eqb x y))


DEBUG:Going to execute:
try Tactics.program_solve_wf
Level 2: Backtrace:

Tactic failure: Proof search failed.
Level 2: Backtrace:

Tactic failure: Proof search failed.