Is impossible clear Survival Mode!

[KadajNoir]

i modified the stage dat:
<stage> id: 50 #Survival Stage
<phase> bound: 1500 #phase 0
id: 0 hp: 0
<phase_end>

<phase> bound: 1500 #phase 1
id: 0 hp: 0
<phase_end>

...............

<phase> bound: 1500 #phase 99
id: 0 hp: 0
when_clear_goto_phase: 90
<phase_end>

then i chose davis, started the survival mode and pressed F5.
and at this moment i'm at stage ... let me see... nice he reached stage 5000.

EDIT: he reached 10000+