*Second Call for Papers* 41st International Conference on Logic Programming (ICLP’25) University of Calabria, Rende, Italy | September 12-19, 2025 https://iclp25.demacs.unical.it/ *SCOPE* Since the first conference In Marseille in 1982, ICLP has been the premier international event for presenting research in logic programming. Contributions are sought in all areas of logic programming, including but not restricted to: *Theoretical Foundations:* Formal and operational semantics, Non-monotonic reasoning, Reasoning under uncertainty, Knowledge representation, Semantic issues of combining logic and neural models, Complexity results. *Language Design and Programming Methodologies:* Concurrency and parallelism, Mobility, Interacting with ML, Logic-based domain-specific languages, Hybrid logical and imperative/functional languages, Programming techniques, Theory reasoning, Answer set programming, Inductive logic programming, Coinductive logic programming. *Program Analysis and Optimization:* Analysis, Transformation, Verification, Debugging, Profiling, Visualization, Logic-based validation of generated programs. *Implementation Methodologies and Applications:* Compilation, Constraint implementation, Ethics and trustworthiness, Explainability, Parallel/distributed execution, Search and optimization problems, Heuristic methods, Logic-based prompt engineering, Tabling, User interfaces. *IMPORTANT DATES* - Paper registration (regular papers): April 13, 2025 - Paper submission (regular papers): April 18, 2025 - Notification (regular papers): May 25, 2025 - Paper submission (TC papers, IJCAI Fast Track papers): June 15, 2025 - Revision submission (TPLP papers): June 15, 2025 - Final notification: July 6, 2025 - Final version: July 27, 2025 - Main conference: September 15-19, 2025 *TRACKS AND SPECIAL SESSIONS* In addition to the main track, ICLP’25 will host: - IJCAI Fast Track: The notification date for IJCAI’25 does not allow authors of rejected papers to submit to ICLP’25. In coordination with the IJCAI’25 program chairs, we have therefore instituted a process by which authors can submit revised versions of such rejected papers directly to ICLP’25. Authors must submit a cover letter explaining how they have addressed the critical issues raised by IJCAI’25 reviewers before submitting their revised paper to the IJCAI Fast Track of ICLP’25. The submission will then enter the “revision” phase and be considered for publication in TPLP. - Recently Published Research Track: Detailed information will be announced separately. *AFFILIATED EVENTS* - Workshops: September 12-14, 2025 - Autumn School in Computational Logic: September 12-14, 2025 - Doctoral Consortium: September 12-14, 2025 - Logic Programming Contest: September 16 or 17, 2025 - International Symposium on Principles and Practice of Declarative Programming (PPDP 2025) - International Symposium on Logic-based Program Synthesis and Transformation (LOPSTR 2025) *SUBMISSION DETAILS* All submissions must be written in English. Papers accepted at ICLP may appear either in - The journal Theory and Practice of Logic Programming (TPLP) published by Cambridge University Press. TPLP format is described at: https://www.cambridge.org/core/journals/theory-and-practice-of-logic-program... - The ICLP 2025 Technical Communication Proceedings published by Electronic Proceedings in Theoretical Computer Science (EPTCS). EPTCS format is described at: http://style.eptcs.org Submissions may have one of two forms: 1) Regular papers and IJCAI Fast Track papers are at most 14 pages in TPLP format, including references. Accepted regular and IJCAI Fast Track papers will be published in a special issue of TPLP. IJCAI Fast Track papers must be accompanied by a PDF cover letter detailing: - The improvements made to the paper compared to the previous (IJCAI’25) submission, including clarifications on any perceived errors in the reviewers' assessments, if applicable - The paper ID of the IJCAI’25 submission - The authors listed on the IJCAI’25 submission - The title of the IJCAI’25 submission - The original PDF submitted to IJCAI’25 - The IJCAI’25 reviews, including scores and text evaluations The authors of IJCAI Fast Track papers must explicitly give consent for IJCAI’25 to share all submitted information with ICLP’25 to verify its accuracy. ICLP’25 may summarily reject papers for several reasons, including submissions that (a) are outside the thematic scope of ICLP, (b) inaccurately disclosed required information, or (c) omitted original authors without justification. Regular papers that are not (provisionally) accepted for TPLP may be invited to the Technical Communication Proceedings of ICLP’25. The authors can choose to convert a regular paper accepted for the Technical Communication Proceedings into an extended abstract (2 or 3 pages in EPTCS format), which should allow for submitting a long paper version elsewhere. 2) Technical Communication (TC) papers are at most 12 pages in EPTCS format, excluding references. Accepted TC papers will be published in the Technical Communication Proceedings. Submissions will be made via EasyChair, following the link https://easychair.org/conferences/?conf=iclp25 All papers must describe original, previously unpublished research, and must not simultaneously be submitted for publication elsewhere. These restrictions do not apply to Recently Published Research Track submissions as well as previously accepted workshop papers with a limited audience and/or without archival proceedings. All accepted papers will be presented during the conference. Authors of accepted papers will be automatically included in the list of ALP members, who will receive quarterly updates from the Logic Programming Newsletter at no cost. *VENUE* ICLP’25 will be held on the campus of the University of Calabria in Rende, Italy, during 12-19 September 2025. The University of Calabria is one of Italy's leading academic institutions, renowned for its innovative research and vibrant campus life. Located in the scenic city of Rende, it offers a modern learning environment surrounded by natural beauty and cultural richness. Calabria is a region rich in culture, offering a blend of historical heritage and stunning natural beauty. From its breathtaking coastal spots to its easily accessible mountains, the region provides an unforgettable cultural and culinary experience, savoring authentic dishes made from fresh, local ingredients, such as spicy 'nduja, pasta, potatoes and exquisite desserts. *ORGANIZATION* General Chair: Francesco Ricca Program Co-chairs: Martin Gebser and Daniela Inclezan Publicity Chairs: Manuel Borroto and Francesco Calimeri Local Chairs: Antonio Ielo and Giuseppe Mazzotta *PROGRAM COMMITTEE* TBA