NOTES.

git-svn-id: https://www.prismmodelchecker.org/svn/prism/prism/trunk@2237 bbc10eb1-c90d-0410-af57-cb519fbb1720

prism/NOTES

@@ -8,10 +8,12 @@ TODO (before any release)
 -------------------------
 
 PTAs:
-* Implement divergence fix
-* Sort out "time-lock" error message
 * (Further) tidy of prism-examples/pta
 
+DOC!
+
+timelock reported as deadlock for digital
+
 =======================================================
 
 TODO (before public release)
@@ -28,6 +30,9 @@ Filters, property semantics, etc.
 
 Action labels:
 * Check status of export/import trans wrt actions (alll models)
+* Finalise tra format with actions (needs to work with MCs too)
+  - also fix e.g. importtrans, prism-statra
+* make action storage optional (when required e.g. for export) (especially for MCs)
 
 Sim:
 * tidy doSampling, looking at Vincent's code
@@ -111,11 +116,6 @@ Simulator:
 * Traviendo export?
 * Code: Optimise/tidy Choices (ChoiceList/ChoiceSingleton/etc.)
 
-Actions:
-* Finalise tra format with actions (needs to work with MCs too)
-  - also fix e.g. importtrans, prism-statra
-* make action storage optional (when required e.g. for export) (especially for MCs)
-
 Adversary generation:
 * Add adversary generation for other engines
 

prism/NOTES-PTAS.txt

@@ -11,6 +11,8 @@ There are also some additional restrictions for PTA models. Modules cannot read
 
 Model checking requires several assumptions: we require PTAs to be well-formed and non-zeno (see e.g. [KNP09c] for details). Currently, PRISM does not check automatically that these assumptions are satisfied.
 
+PRISM does check for timelocks, i.e. states in which it possible to get to a point where no transitions are available and time cannot elapse due to invariant conditions.
+
 There are a set of PRISM PTA examples in the directory examples/pta. See the formats09.sh script in this directory for details of how to run the examples.
 
 * Properties