CCF BSoftware Engineering and PL2022: BPublisher: Springer
CPInternational Conference on Principles and Practice of Constraint Programming
CP is a rank B conference in Software Engineering, System Software and Programming Languages in the CCF list's 7th edition (2026), as in 2022. CP 2026 took place on Jul 20–23, 2026 in Lisbon, Portugal. Acceptance rate 2026: 44.9% (62/138).
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Data updated 8 November 2026 · rank from the CCF list's 7th edition
Latest edition
CP 2026: call for papers timeline
- Mar 3, 2026, 11:00 UTCAbstractCommunity data · unverified
- Mar 15, 2026, 11:00 UTC
- Jul 20–23, 2026Local timeConferenceLisbon, Portugal
AoE (Anywhere on Earth) is UTC−12 (time zones explained). These dates come from the ccf-deadlines community project and have not yet been checked against the conference website; confirm them there before you submit. Conference website ↗
Past editions
Dates, venues, deadlines and acceptance rates
| Year | Paper deadline | Acceptance | Papers (dblp) | Dates | Venue |
|---|---|---|---|---|---|
| 2026 | 2026-03-14AoE | 44.9%62/138 · source | 65 | Jul 20–23, 2026 | Lisbon, Portugal |
| 2025 | 2025-04-03AoE | 38.7%41/106 · source | 44 | Aug 10–15, 2025 | Glasgow, Scotland |
| 2024 | 2024-04-26AoE | 40.0%38/95 · source | 41 | Sep 3–6, 2024 | Girona, Catalonia, Spain |
| 2023 | 2023-05-05AoE | 40.4%44/109 · source | 50 | Aug 28–31, 2023 | Toronto, Canada |
| 2022 | 2022-02-25AoE | 51.3%40/78 · source | 42 | Jul 31 – Aug 8, 2022 | HAIFA, ISRAEL |
| 2021 | 2021-05-30AoE | 44.2%57/129 · source | 60 | Oct 26–29, 2021 | Online |
| 2020 | — | — | 55 | — | — |
| 2019 | — | — | 44 | — | — |
| 2018 | — | — | 47 | — | — |
| 2017 | — | — | 45 | — | — |
| 2016 | — | — | 54 | — | — |
Paper counts are dblp's main proceedings only, without workshop volumes; acceptance rates link to the page they come from. dblp ↗
CCF list
CP in the CCF list
- 7th edition (2026)
- CCF B Software Engineering, System Software and Programming Languages · no. 9
- 6th edition (2022)
- CCF B Software Engineering, System Software and Programming Languages
- Name in the list
- International Conference on Principles and Practice of Constraint Programming
- Publisher
- Springer
- dblp
- conf/cp ↗
CCF counts the full (regular) papers of a listed conference: short papers, demos, technical briefs, summaries, Findings and the workshops held with a conference are outside the list. CCF also says the list is a recommendation and should not be used on its own to evaluate research; your institution's rules decide. What counts, case by case →
FAQ
About CP
What CCF rank is CP?
CP is a rank B conference in Software Engineering, System Software and Programming Languages in the CCF list's 7th edition (2026), as in 2022.
Where is CP 2026?
CP 2026 took place on Jul 20–23, 2026 in Lisbon, Portugal.
What is the CP acceptance rate?
2026: 138 submissions, 62 accepted, 44.9%. 2025: 38.7% (41/106). The history table links each figure to its source.
Do CP workshop and short papers count as CCF B?
CCF counts the full (regular) papers of a listed conference: short papers, demos, technical briefs, summaries, Findings and the workshops held with a conference are outside the list. CCF also says the list is a recommendation and should not be used on its own to evaluate research; your institution's rules decide.
In more detail: Which CCF conference papers count · How to read conference deadlines
Sources: the CCF list of recommended international conferences and journals, 7th edition (published 31 March 2026, corrected 9 April 2026) and 6th edition (2022); editions, deadlines and acceptance rates from the ccf-deadlines community project (MIT licence), marked as community data until checked against each conference's website, then marked as checked with the website's own words; proceedings and paper counts from dblp (CC0).