The determinacy checker can help you spot unwanted nondeterminacy in your programs. This tool examines your program source code and points out places where nondeterminacy may arise. It is not in general possible to find exactly which parts of a program will be nondeterminate without actually running the program, best with the execution profiler, which endeavors to find exactly those parts. However, this tool can find most unwanted nondeterminacy. Unintended nondeterminacy should be eradicated because: