renaming dest_plain_fun to dest_fun_upds and adding handling of undefined for postprocessing of quickcheck

improving term postprocessing for counterexample presentation in quickcheck

tuned

finished and tested Z3 proof reconstruction for injective functions; only treat variables as atomic, and especially abstract constants (Isabelle's interpretation of these constants is most likely not known to Z3 and thus irrelevant for the proof)

improved formula for specialization, to prevent needless specializations -- and removed dead code

perform no arity check in debug mode so that we get to see the Kodkod problem

spark_end now joins proofs of VCs before writing *.prv file.

clarified

produce helpful mira summary for more errors

eliminated prems;

eliminated UNITY_Examples.thy which takes quite long to merge and does not parallelize so well -- essentially reverting 3dec57ec3473;

tuned proofs -- eliminated prems;

merged

merged

don't forget to look for constants appearing only in "need" option -- otherwise we get exceptions in "the_name" later on

simplified Thy_Info.check_file -- discontinued load path;

discontinued legacy load path;

re-interpret ProofGeneralPgip.changecwd as Thy_Load.set_master_path, presuming that this is close to the intended semantics;

modernized imports;

observe standard header format;

removed spurious 'unused_thms' (cf. 1a65b780bd56);

isatest cygwin-poly-e: new memory management of polyml-svn could be more stable;

merged

merged