Some of the result values for the test cases were floating-point approximations,
which results in 'close but inaccurate' errors when running the test cases against
the exact engine.
We replace those results either with the exact values or mark the approximated
results with ~... (mostly for a few CTMC properties, where the exact results
are a bit unwieldly).
During model exploration of a CTMC, when using fast adaptive uniformisation,
only the last part of an update (rate & successor state) is used, as the
indexing of the outgoing transitions is buggy.
We now store all outgoing transitions and handle the case of multiple
choices/enabled commands in the CTMC.
+ two test cases
The action object attached to a transition can be null (internal action), leading to a null pointer
exception when trying to call the toString method.
+ test case
Previously, a transition reward with [] would match the self loop
transition added for fixing deadlocks in the explicit engine.
Fixes#29 and adds test case.