-- rumur_flags: self.config['SMT_ARGS']
-- skip_reason: 'no SMT solver available' if self.config['SMT_ARGS'] is None else None

/* test whether the SMT bridge can simplify expressions involving arrays with
 * enum values and indices
 */

type
  t: array[enum { C, D }] of enum { A, B };

var
  x: t;
  y: boolean;

startstate begin
  y := true;
end;

rule begin
  /* if the SMT bridge is working correctly, it will simplify the condition in
   * the following expression to `true` avoiding the read of an undefined
   * variable
   */
  if x[C] = x[C] then
    y := !y;
  end;
end;
