(CommandList
  children: [
    (Sentence
      child: 
        (C {(.)} 
          {
            (DQ 
              (BracedVarSub
                token: <VSub_Name srcdir>
                suffix_op: (StringUnary op_id:VTest_Equals arg_word:{(.)})
                spids: [50 54]
              ) (/tests/init.sh)
            )
          }
        )
      terminator: <Op_Semi ';'>
    )
    (C {(path_prepend_)} {(./src)})
    (C {(print_ver_)} {(sort)})
    (C {(very_expensive_)})
    (AndOr
      ops: [Op_DPipe]
      children: [
        (SimpleCommand
          words: [{(grep)} {(SQ <'^#define HAVE_PTHREAD_T 1'>)} {(DQ ($ VSub_Name '$CONFIG_HEADER'))}]
          redirects: [(Redir op_id:Redir_Great fd:16777215 arg_word:{(/dev/null)} spids:[93])]
        )
        (C {(skip_)} {(SQ <'requires pthreads'>)})
      ]
    )
    (AndOr
      ops: [Op_DPipe]
      children: [
        (SimpleCommand
          words: [{(seq)} {(100000)}]
          redirects: [(Redir op_id:Redir_Great fd:16777215 arg_word:{(KW_In in)} spids:[111])]
        )
        (C {(framework_failure_)})
      ]
    )
    (C {(mkfifo_or_skip_)} {(fifo)})
    (Sentence
      child: 
        (Subshell
          child: 
            (CommandList
              children: [
                (ForEach
                  iter_name: i
                  iter_words: [
                    {
                      (CommandSubPart
                        command_list: (CommandList children:[(C {(seq)} {(80)})])
                        left_token: <Left_CommandSub '$('>
                        spids: [137 141]
                      )
                    }
                  ]
                  do_arg_iter: F
                  body: 
                    (DoGroup
                      children: [
                        (Sentence
                          child: (C {(read)} {(line)})
                          terminator: <Op_Semi ';'>
                        )
                        (Sentence
                          child: (C {(echo)} {($ VSub_Name '$i')})
                          terminator: <Op_Semi ';'>
                        )
                        (Sentence
                          child: (C {(sleep)} {(.1)})
                          terminator: <Op_Semi ';'>
                        )
                      ]
                      spids: [144 161]
                    )
                  spids: [136 142]
                )
                (SimpleCommand
                  words: [{(cat)}]
                  redirects: [
                    (Redir
                      op_id: Redir_Great
                      fd: 16777215
                      arg_word: {(/dev/null)}
                      spids: [166]
                    )
                  ]
                )
              ]
            )
          redirects: [(Redir op_id:Redir_Less fd:16777215 arg_word:{(fifo)} spids:[171])]
          spids: [130 169]
        )
      terminator: <Op_Amp '&'>
    )
    (C {(ulimit)} {(-t)} {(7)})
    (AndOr
      ops: [Op_DPipe]
      children: [
        (SimpleCommand
          words: [{(sort)} {(--parallel) (Lit_Other '=') (2)} {(KW_In in)}]
          redirects: [(Redir op_id:Redir_Great fd:16777215 arg_word:{(fifo)} spids:[198])]
        )
        (Assignment
          keyword: Assign_None
          pairs: [(assign_pair lhs:(LhsName name:fail) op:Equal rhs:{(1)} spids:[204])]
          spids: [204]
        )
      ]
    )
    (C {(Exit)} {($ VSub_Name '$fail')})
  ]
)