(List
  (Com {[LIT_CHARS set]} {[LIT_CHARS -o]} {[LIT_CHARS nounset]})
  (Com {[LIT_CHARS set]} {[LIT_CHARS -o]} {[LIT_CHARS errexit]})
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('VERIFY', {[VarSub PREFIX test_op=VS_TEST_COLON_HYPHEN {[LIT_CHARS yes]}]})])
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('PREFIX', {[VarSub PREFIX test_op=VS_TEST_COLON_HYPHEN {}]})])
  (Com {[LIT_CHARS python]} {[LIT_CHARS ../prepare_input.py]} {[LIT_CHARS --config]} {[ComSub (Com {[LIT_CHARS basename]} {[ComSub (Com {[LIT_CHARS pwd]})]})]} {[LIT_CHARS ref]})
  (Com {[VarSub PREFIX]} {[VarSub 1]} {[VarSub DASHDASH]} {[LIT_CHARS data/ref/input/input.source]} {[LIT_CHARS 58]}
    <
    (FilenameRedirectNode filename={[LIT_CHARS input.source.out]} <REDIR_GREAT ">"> 1),
    (FilenameRedirectNode filename={[LIT_CHARS stderr1.out]} <REDIR_GREAT "2>"> 2),
    >
  )
  (Com {[VarSub PREFIX]} {[VarSub 1]} {[VarSub DASHDASH]} {[LIT_CHARS data/ref/input/input.graphic]} {[LIT_CHARS 58]}
    <
    (FilenameRedirectNode filename={[LIT_CHARS input.graphic.out]} <REDIR_GREAT ">"> 1),
    (FilenameRedirectNode filename={[LIT_CHARS stderr2.out]} <REDIR_GREAT "2>"> 2),
    >
  )
  (Com {[VarSub PREFIX]} {[VarSub 1]} {[VarSub DASHDASH]} {[LIT_CHARS data/ref/input/input.program]} {[LIT_CHARS 58]}
    <
    (FilenameRedirectNode filename={[LIT_CHARS input.program.out]} <REDIR_GREAT ">"> 1),
    (FilenameRedirectNode filename={[LIT_CHARS stder3.out]} <REDIR_GREAT "2>"> 2),
    >
  )
  (If
    (DBracket {B2 BINARY_STRING_NOT_EQUAL {[DQ [VarSub VERIFY]]} {[DQ [LIT_CHARS no]]}})
    (List
      (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS VERIFY]]})
      (Com {[LIT_CHARS cmp]} {[LIT_CHARS input.source.out]} {[LIT_CHARS data/ref/output/input.source.out]})
      (Com {[LIT_CHARS cmp]} {[LIT_CHARS input.graphic.out]} {[LIT_CHARS data/ref/output/input.graphic.out]})
      (Com {[LIT_CHARS cmp]} {[LIT_CHARS input.program.out]} {[LIT_CHARS data/ref/output/input.program.out]})
    )
  )
  (Com {[LIT_CHARS echo]} {[LIT_CHARS OK]})
)