Only emits overflow alarms on [a/b] when [a] may be equal to [min_int] AND
[b] may be equal to [-1]. Also reduces the values of [a] and [b] when possible.

According to the C standard, section 6.5.5 §6:
"If the quotient a/b is representable, the expression (a/b)*b + a%b shall equal a;
otherwise, the behavior of both a/b and a%b is undefined."

When an invalid status is emitted for the instance of a precondition at a
callsite, registers as "high priority" the instance as well as the precondition
itself.

- Always print plugin except kernel
- The only optional plugin is used in extension_from and plugin_from
- All other acsl_extension functions take a plugin:string
  - these functions raise Not_found is the extension is not registered
  - can also fatal in case of ambiguity if plugin is None

In offsetmaps, removes a reference to change the feedback emitted when
approximating the write of large memory locations.

Instead, the main offsetmap functor takes an additional parameter about
whether such messages should be emitted. Only the offsetmaps build by the
Eva cvalue domain emits these messages, as write approximations may have a
significant impact on the analysis precision.
Offsetmaps used to represent memory zones or dependiencies do not emit
these messages, which were most often insignificant and instable
(as many plug-ins and Eva domains use memory zones in various ways).

Loc will be updated once we encounter the definition