Process is existing as a dreference error during the sim

JainamShah

class processtest;
  process p[];  event ev[];
  function new(); 

  p = new[5];

    ev = new[5];

  endfunction
  task start_prcess(int idx,int delay);

    fork

      begin 

      $display("starting process for idx=%d tiem: %0t",idx, $time);   

    p[idx] = process::self;

     wait(ev[idx].triggered); 

      $display("process is done idx=%d time: %0t",idx, $time );   

  end  

  join_none   

endtask
  function void process_accepted(int idx); 

  ->ev[idx];
  endfunction 

function void print_process_status(int idx);

    process::state pstat;
    pstat = p[idx].status(); 

  $display("idx=%d process_status=%d", idx,p[idx].status);
  endfunction

endclass

module process_test;

  initial begin

    static processtest pt = new(); 

  pt.start_prcess(0,100);   

pt.start_prcess(1,100); 

  pt.start_prcess(2,10); 

  pt.start_prcess(3,1000); 

  pt.start_prcess(4,200); 

     pt.print_process_status(0); 

  pt.process_accepted(1); 

  endmodule

when I run this code I get following error which I am not able to explain. If I remove the pt.print_process_status(0); then this error goes away

S:Begin run-time elaboration and static initialization...=N:[dumpMXD] preparing MXD dump to 'waves.mxd'.=N:[dump] Dump started at time 0=N:Starting event scheduler...=F:[NullRef] null handle 'p' dereferenced @ testbench \processTest.sv:41:14=N:[dumpMXD] closing MXD dump=T:Simulation terminated due to null handle dereference.=N:Backtrace:

PS: is there a better way to put the code in the question?

Shaun_Altair

It is better to attach your source code as files rather than paste their contents as comments.

Did you look at line 41 of processTest.sv? That's what the error message says:

=F:[NullRef] null handle 'p' dereferenced @ testbench \processTest.sv:41:14

Did you initialize 'p'?