Dear IPC-5 competitor,

There are some IMPORTANT news. First, the good one. Since the new features
of PDDL3 may require considerable programming efforts, and only some teams
have run their tests, we decided to extend the deadline for COMPLETING your 
tests on the competition machine and submit the executable of your planners,
as announced in the c.f.p. and in the "general information" communication.

>>> The NEW *HARD* deadline is FIRST OF MAY <<<

Please do your best to meet the extended deadline.

Unfortunately, we found a few more bugs in some domain variants already
released (thanks to those who have just pointed them out!). If you have
already tested your planner with these domains, PLEASE REPEAT THESE TESTS 
USING THE CORRECTED FORMALIZATIONS, which are now available from the 
competition machine (olimpia@ing.unibs.it). 
The corrected domain variants are:

(1) TPP/MetricTimeConstraints/domains.pddl
(2) TPP/ComplexPreferences/domain.pddl
(3) Pathways/Propositional/Strips/domain_*.pddl  
(4) Trucks/SimplePreferences/Grounded/domain_*.pddl

A short explanation of the corrected bugs:

In (1) there was a typed variable with incorrect type ("trucks" instead
of "truck"). 

In (2) the "p-drive" preference was incorrectly stated. Instead of 
  (forall (?g - goods) (> (ready-to-load ?g ?from) 0)), it should be
  (forall (?g - goods) (< (ready-to-load ?g ?from) 1)).

In (3) and (4), we had multiple actions with the same name. These files
have been automatically generated from the corresponding ADL of
non-grounded versions, but there was a bug in the generator.  Please note
that if your planner supports the original ADL and non-grounded versions
of Pathways/Propositional and Trucks/SimplePreferences, respectively,
there is NO NEED to re-run the tests.

Sorry for this inconvenience.

Regards,
Alfonso