Currently the reachability query only supports clock constraints such as "x < 2", "z >= 1", etc.
However those of format "x-y < c" should also be supported, by supporting the "-" operator.
This is currently missing from both the query parser and invariant parser (#96).
The reachability query parser uses the invariant parser, so that must be solved first.
After solving the invariant parser issue, making it work for reachability should be trivial.
Currently the reachability query only supports clock constraints such as "x < 2", "z >= 1", etc.
However those of format "x-y < c" should also be supported, by supporting the "-" operator.
This is currently missing from both the query parser and invariant parser (#96).
The reachability query parser uses the invariant parser, so that must be solved first.
After solving the invariant parser issue, making it work for reachability should be trivial.