Validate correctly concurrency situations in inf-test-reduce-replay
Validate correctly concurrency situations in inf-test-reduce-replay

Since we are deleting all sync requests, it can happen that remaining
session requests would depend on deleted ones in concurrent situations.
This situation is now detected as invalid.

tyll/libinfinity,gobby/libinfinity,gobby/libinfinity,tyll/libinfinity,tyll/libinfinity,gobby/libinfinity