Information processing system, information processing method, and recording medium

An information processing system, an information processing method, and a recording medium. An information processing system includes: an analysis unit that generates a control flow chart on the basis of an abstract syntax tree corresponding to a source code of a user program; a construction unit that, on the basis of the control flow chart, searches for variables that are dependent on variables used by the user program, thereby constructing a dependency relationship between the variables; a search unit that searches for a variable that can be regarded as a fixed value among variables used by the user program; and an update unit that updates the dependency relationship between the variables by reflecting the variables that can be regarded as fixed values in the source code. 信息处理系统、信息处理方法以及记录介质。信息处理系统包含：分析部，其根据与用户程序的源代码对应的抽象语法树，生成控制流程图；构建部，其基于控制流程图，检索依赖于用户程序所使用的变量的变量，由此构建变量间的依赖关系；检索部，其检索用户程序所使用的变量中的可视为固定值的变量；以及更新部，其将可视为固定值的变量反映到源代码中，由此更新变量间的依赖关系。