{"id":335543,"date":"2016-12-12T15:54:39","date_gmt":"2016-12-12T23:54:39","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/?post_type=msr-research-item&#038;p=335543"},"modified":"2018-10-16T20:08:57","modified_gmt":"2018-10-17T03:08:57","slug":"recursive-program-synthesis","status":"publish","type":"msr-research-item","link":"https:\/\/www.microsoft.com\/en-us\/research\/publication\/recursive-program-synthesis\/","title":{"rendered":"Recursive Program Synthesis"},"content":{"rendered":"<p>Input-output examples are a simple and accessible way of describing program behaviour. Program synthesis from input-output examples has the potential of extending the range of computational tasks achievable by end-users who have no programming knowledge, but can articulate their desired computations by describing input-output behaviour. In this paper, we present ESCHER, a generic and efficient algorithm that interacts with the user via input-output examples, and synthesizes <em>recursive programs <\/em>implementing intended behaviour.\u00a0ESCHER is parameterized by the <em>components <\/em>(instructions) that can be used in the program, thus providing a generic synthesis algorithm that can be instantiated to suit different domains. To search through the space of programs, ESCHER adopts a novel search strategy that utilizes special data structures for inferring conditionals and synthesizing recursive procedures. Our experimental evaluation of\u00a0ESCHER demonstrates its ability to efficiently synthesize a wide range of programs, manipulating integers, lists, and trees. Moreover, we show that Escher outperforms a state-of-the-art SAT-based synthesis tool from the literature.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Input-output examples are a simple and accessible way of describing program behaviour. Program synthesis from input-output examples has the potential of extending the range of computational tasks achievable by end-users who have no programming knowledge, but can articulate their desired computations by describing input-output behaviour. In this paper, we present ESCHER, a generic and efficient [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":null,"msr_publishername":"Springer-Verlag Berlin, Heidelberg","msr_publisher_other":"","msr_booktitle":"","msr_chapter":"","msr_edition":"CAV'13 Proceedings of the 25th international conference on Computer Aided Verification","msr_editors":"","msr_how_published":"","msr_isbn":"","msr_issue":"","msr_journal":"","msr_number":"","msr_organization":"","msr_pages_string":"934-950","msr_page_range_start":"934","msr_page_range_end":"950","msr_series":"","msr_volume":"","msr_copyright":"","msr_conference_name":"CAV'13 Proceedings of the 25th international conference on Computer Aided 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demonstrations, natural language, etc. Program synthesis has direct applications for various classes of users in the technology pyramid: (100s of millions of) End Users (people who have access to a computational device but are not expert programmers): Helping them to create small snippets of code for performing 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