how to write log while using features of Advanced Optimization ?

You could use a "preRun" trigger something like this to do this - you would then need to adapt the code to control where you record it...

;
procedure(abExamplePreRunTrigger(sess sdb mode testName)
    printf("Run mode is %s\n" mode)
)

procedure(abAddExamplePreRunTrigger(sess)
    axlSessionConnect(sess "preRun" 'abExamplePreRunTrigger)
)

procedure(abSetupExamplePreRunTrigger()
    ;--------------------------------------------------------------------
    ; Ensure we only register the trigger once
    ;--------------------------------------------------------------------
    unless(abSetupExamplePreRunTrigger.registered
        axlSessionRegisterCreationCallback('abAddExamplePreRunTrigger)
        abSetupExamplePreRunTrigger.registered=t
    )
)

Load this code and then call abSetupExamplePreRunTrigger() .

Andrew