@proceedings {BacciC10absdiag,
	title = {Abstract Diagnosis of First Order Functional Logic Programs},
	journal = {Logic-Based Program Synthesis and Transformation {\textendash} 20th International Symposium {\textendash} Pre-Proceedings},
	volume = {10-14},
	year = {2010},
	pages = {58{\textendash}72},
	edition = {20},
	address = {Hagenberg, Austria},
	abstract = {We present a generic scheme for the abstract debugging of functional-logic programs. We associate to our programs a semantics based on a (continuous) immediate consequence operator, P[[R]], which models correctly the typical cogent features of modern functional-logic languages (non-deterministic, non-strict functions defined by non-confluent programs and call-time choice behaviour). Then, we develop an effective debugging methodology which is based on abstract interpretation: by approximating the intended specification of the semantics of R we derive a finitely terminating bottom-up diagnosis method, which can be used statically. Our debugging framework does not require the user to either provide error symptoms in advance or answer questions concerning program correctness.},
	keywords = {Abstract Diagnosis, Debugging, Declarative Diagnosis, Functional-logic Programming},
	author = {Giovanni Bacci and Marco Comini},
	editor = {Maria Alpuente}
}
@inbook {ABF10,
	title = {Transformation and Debugging of Functional Logic Programs},
	booktitle = {25 Years GULP 2010},
	series = {Lecture Notes in Computer Science},
	year = {2010},
	pages = {271{\textendash}299},
	publisher = {Springer},
	organization = {Springer},
	chapter = {Transformation and Debugging of Functional Logic Programs},
	abstract = {The Italian contribution to 
functional-logic programming has been significant and influential in a number of areas of semantics, and semantics-based program manipulation techniques.
We survey selected topics, with a particular  regard to debugging and 
transformation techniques. These results as usual depend on the
narrowing strategy which is adopted and on the properties satisfied
by the considered programs. In this paper, we restrict ourselves to first-order  functional-logic languages without non-deterministic functions.
We start by describing some basic classical transformation techniques,
namely folding and unfolding.
Then, we recall the
narrowing-driven partial evaluation, which is the first generic algorithm for 
the specialization of functional logic   programs. 
Regarding debugging,
we describe a goal-independent approach to automatic diagnosis and correction 
which applies the immediate consequence operator modeling computed answers
to the diagnosis of bugs in functional logic programs.
A companion bug-correction  program synthesis methodology is 
described that attempts to correct the erroneous
components of the wrong code.},
	keywords = {Debugging, Fold/Unfold Transformations, Functional-logic Programming, Program Transformation},
	author = {Maria Alpuente and Demis Ballis and Moreno Falaschi}
}
@proceedings {ABCF03,
	title = {Correction of Functional Logic Programs},
	journal = {Programming Languages and Systems, 12th European Symposium on Programming, ESOP 2003},
	volume = {2618},
	year = {2003},
	pages = {54{\textendash}68},
	publisher = {Springer},
	abstract = {We propose a new methodology for synthesizing correct
functional logic programs.  We aim to create an integrated development
environment in which it is possible to debug a program and correct
it automatically. We start from a declarative diagnoser that we have developed
previously which allows us
to identify wrong  program rules w.r.t. an intended specification.
Then a bug-correction, program synthesis methodology tries
to correct the erroneous components of the wrong code.
We propose a hybrid, top-down  (unfolding-based)
as well as bottom-up (induction-based), approach
for the automatic correction of functional logic programs
which is driven by a set of evidence examples which are automatically
produced as an outcome by the diagnoser.
The resulting program is proven to be correct and complete
w.r.t. the considered example sets.
Finally, we also provide a prototypical implementation
which we use for an experimental
evaluation of our system.
},
	keywords = {Debugging, Functional-logic Programming, program correction, Program Transformation, Unfolding},
	author = {Maria Alpuente and Demis Ballis and F. Correa and Moreno Falaschi}
}
