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Use Expression instead of plain strings for counterexamples

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This commit is contained in:
Leonardo Alt
2020-10-27 12:04:51 +00:00
parent 72b052eae7
commit 446e46fe06
6 changed files with 92 additions and 37 deletions
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libsolidity/formal/Predicate.h
+10 -4
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@@ -107,21 +107,27 @@ public:
/// @returns a formatted string representing a call to this predicate
/// with _args.
std::string formatSummaryCall(std::vector<std::string> const& _args) const;
std::string formatSummaryCall(std::vector<smtutil::Expression> const& _args) const;
/// @returns the values of the state variables from _args at the point
/// where this summary was reached.
std::vector<std::string> summaryStateValues(std::vector<std::string> const& _args) const;
std::vector<std::optional<std::string>> summaryStateValues(std::vector<smtutil::Expression> const& _args) const;
/// @returns the values of the function input variables from _args at the point
/// where this summary was reached.
std::vector<std::string> summaryPostInputValues(std::vector<std::string> const& _args) const;
std::vector<std::optional<std::string>> summaryPostInputValues(std::vector<smtutil::Expression> const& _args) const;
/// @returns the values of the function output variables from _args at the point
/// where this summary was reached.
std::vector<std::string> summaryPostOutputValues(std::vector<std::string> const& _args) const;
std::vector<std::optional<std::string>> summaryPostOutputValues(std::vector<smtutil::Expression> const& _args) const;
private:
/// @returns the formatted version of the given SMT expressions. Those expressions must be SMT constants.
std::vector<std::optional<std::string>> formatExpressions(std::vector<smtutil::Expression> const& _exprs, std::vector<TypePointer> const& _types) const;
/// @returns a string representation of the SMT expression based on a Solidity type.
std::optional<std::string> expressionToString(smtutil::Expression const& _expr, TypePointer _type) const;
/// The actual SMT expression.
smt::SymbolicFunctionVariable m_predicate;