| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Research Abstract |
We have developed a method, which is an extension of the stepwise refinement method, for correctness-preserving transformation of programs that make use of advanced features such as pointer manipulations and exceptions. We have shown that each feature has a corresponding logical system, namely, separation logic for pointer manipulations and four-valued logic for exceptions. It has been shown that the correctness of programs is formally guaranteed by developing formal proofs on computers, based on each particular logical system.
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