verilator/test_regress/t/t_fork.v

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2003 by Wilson Snyder.
// SPDX-License-Identifier: CC0-1.0

module t (/*AUTOARG*/);

   initial begin
      fork : fblk
         begin
            $write("Forked");
         end
         begin
            $write("*-* All Finished *-*\n");
            $finish;
         end
      join : fblk
   end

endmodule