File: smt-record-bool-field.m

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rumur 2020.12.20-1
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-- 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 records with
-- boolean fields

type
  t: record
    x: boolean;
  end;

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.x = x.x then
    y := !y;
  end;
end;