you need 64bit version of srep64+lzma64:4096mb
try
Code:
arc a -ep1 -ed -lc- -ld2000 -r -w.\ .\%arc% -mprecomp:t-nfj:zl11,18,34,39,44,55,68,75,82,83,84,85,97,98:d1 0+srep+exe+delta+lzma:a1:mfbt4:d1024m:fb128:mc1000: lc8
this method with 1024 (d1024m) of dictionary size you need 10gb of ram
test change this options d1024m
-lc- -ld- no limit