uvm-1.2/src/base/uvm_phase.svh
Line 1297: task uvm_phase::execute_phase();
  uvm_task_phase task_phase;
  uvm_root top;
  uvm_phase_state_change state_chg;
  uvm_coreservice_t cs;

  cs = uvm_coreservice_t::get();
  top = cs.get_root();
  ...........
             // TIMEOUT
             begin
               if (this.get_name() == "run") begin
                  if (top.phase_timeout == 0)
                    wait(top.phase_timeout != 0);
                  if (m_phase_trace)
                    `UVM_PH_TRACE("PH/TRC/TO_WAIT", $sformatf("STARTING PHASE TIMEOUT WATCHDOG (timeout == %t)", top.phase_timeout), this, UVM_HIGH)
                  `uvm_delay(top.phase_timeout)
                  if ($time == `UVM_DEFAULT_TIMEOUT) begin
                     if (m_phase_trace)
                       `UVM_PH_TRACE("PH/TRC/TIMEOUT", "PHASE TIMEOUT WATCHDOG EXPIRED", this, UVM_LOW)
                     foreach (m_executing_phases[p]) begin
                        if ((p.phase_done != null) && (p.phase_done.get_objection_total() > 0)) begin
                           if (m_phase_trace)
                             `UVM_PH_TRACE("PH/TRC/TIMEOUT/OBJCTN",
                                           $sformatf("Phase '%s' has outstanding objections:\n%s", p.get_full_name(), p.phase_done.convert2string()),
                                           this,
                                           UVM_LOW)
                        end
                     end

                     `uvm_fatal("PH_TIMEOUT",
                                $sformatf("Default timeout of %0t hit, indicating a probable testbench issue",
                                          `UVM_DEFAULT_TIMEOUT))
                  end
                  else begin
                     if (m_phase_trace)
                       `UVM_PH_TRACE("PH/TRC/TIMEOUT", "PHASE TIMEOUT WATCHDOG EXPIRED", this, UVM_LOW)
                     foreach (m_executing_phases[p]) begin
                        if ((p.phase_done != null) && (p.phase_done.get_objection_total() > 0)) begin
                           if (m_phase_trace)
                             `UVM_PH_TRACE("PH/TRC/TIMEOUT/OBJCTN",
                                           $sformatf("Phase '%s' has outstanding objections:\n%s", p.get_full_name(), p.phase_done.convert2string()),
                                           this,
                                           UVM_LOW)
                        end
                     end

                     `uvm_fatal("PH_TIMEOUT",
                                $sformatf("Explicit timeout of %0t hit, indicating a probable testbench issue",
                                          top.phase_timeout))
                  end
                  if (m_phase_trace)
                    `UVM_PH_TRACE("PH/TRC/EXE/3","PHASE EXIT TIMEOUT",this,UVM_DEBUG)
               end // if (this.get_name() == "run")
               else begin
                  wait (0); // never unblock for non-run phase
               end
             end // if (m_phase_trace)