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1. 发明授权

US08180786B2 Symbolic query exploration 有权
标题翻译：符号查询探索
公开(公告)号：US08180786B2
公开(公告)日：2012-05-15
申请号：US12549380
申请日：2009-08-28
申请人： Margus Veanes , Nikolai Tillmann , Jonathan Paul de Halleux , Pavel Grigorenko
发明人： Margus Veanes , Nikolai Tillmann , Jonathan Paul de Halleux , Pavel Grigorenko
IPC分类号： G06F17/30
CPC分类号： G06F17/30634
摘要： A symbolic query exploration (QEX) module automatically produces output information that can be used to evaluate a database. The QEX module operates by converting an input query into a formula for processing by a satisfiability module theories (SMT) solver module. The SMT solver module generates a model that satisfies the formula. The model yields table information that is used to populate the database and, optionally, parameter information that is used to instantiate the query. A query evaluation module then submits the instantiated query to the populated database and evaluates whether an evaluation result produced thereby agrees with pre-specified condition information. The QEX module can preprocess the formula using either (or both) an eager expansion approach (in which the formula is expanded in an upfront manner) or a lazy expansion approach (in which axioms are identified for later possible expansion by the SMT solver module).
摘要翻译：符号查询探索（QEX）模块自动生成可用于评估数据库的输出信息。 QEX模块通过将输入查询转换为可满足性模块理论（SMT）求解器模块进行处理的公式来进行操作。 SMT求解器模块生成满足公式的模型。该模型产生用于填充数据库的表信息，以及可选的用于实例化查询的参数信息。查询评估模块然后将实例化的查询提交给填充的数据库，并评估由此产生的评估结果是否与预先指定的条件信息一致。 QEX模块可以使用（或两者）（或两者）预热扩展方法（其中公式以前期方式扩展）或延迟扩展方法（其中公理被识别用于随后可能由SMT求解器模块扩展）来预处理公式，。

2. 发明申请

US20110055237A1 Symbolic Query Exploration 有权
标题翻译：符号查询探索
公开(公告)号：US20110055237A1
公开(公告)日：2011-03-03
申请号：US12549380
申请日：2009-08-28
申请人： Margus Veanes , Nikolai Tillmann , Jonathan Paul de Halleux , Pavel Grigorenko
发明人： Margus Veanes , Nikolai Tillmann , Jonathan Paul de Halleux , Pavel Grigorenko
IPC分类号： G06F17/30
CPC分类号： G06F17/30634
摘要： A symbolic query exploration (QEX) module automatically produces output information that can be used to evaluate a database. The QEX module operates by converting an input query into a formula for processing by a satisfiability module theories (SMT) solver module. The SMT solver module generates a model that satisfies the formula. The model yields table information that is used to populate the database and, optionally, parameter information that is used to instantiate the query. A query evaluation module then submits the instantiated query to the populated database and evaluates whether an evaluation result produced thereby agrees with pre-specified condition information. The QEX module can preprocess the formula using either (or both) an eager expansion approach (in which the formula is expanded in an upfront manner) or a lazy expansion approach (in which axioms are identified for later possible expansion by the SMT solver module).
摘要翻译：符号查询探索（QEX）模块自动生成可用于评估数据库的输出信息。 QEX模块通过将输入查询转换为可满足性模块理论（SMT）求解器模块进行处理的公式来进行操作。 SMT求解器模块生成满足公式的模型。该模型产生用于填充数据库的表信息，以及可选的用于实例化查询的参数信息。查询评估模块然后将实例化的查询提交给填充的数据库，并评估由此产生的评估结果是否与预先指定的条件信息一致。 QEX模块可以使用（或两者）（或两者）预热扩展方法（其中公式以前期方式扩展）或延迟扩展方法（其中公理被识别用于随后可能由SMT求解器模块扩展）来预处理公式，。

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