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-rw-r--r--libsolidity/formal/SMTLib2Interface.cpp11
-rw-r--r--libsolidity/formal/SMTLib2Interface.h8
-rw-r--r--libsolidity/formal/SolverInterface.h66
3 files changed, 37 insertions, 48 deletions
diff --git a/libsolidity/formal/SMTLib2Interface.cpp b/libsolidity/formal/SMTLib2Interface.cpp
index c627057a..0e00665a 100644
--- a/libsolidity/formal/SMTLib2Interface.cpp
+++ b/libsolidity/formal/SMTLib2Interface.cpp
@@ -64,8 +64,6 @@ void SMTLib2Interface::pop()
Expression SMTLib2Interface::newFunction(string _name, Sort _domain, Sort _codomain)
{
- solAssert(!m_variables.count(_name), "");
- m_variables[_name] = SMTVariableType::Function;
write(
"(declare-fun |" +
_name +
@@ -80,16 +78,12 @@ Expression SMTLib2Interface::newFunction(string _name, Sort _domain, Sort _codom
Expression SMTLib2Interface::newInteger(string _name)
{
- solAssert(!m_variables.count(_name), "");
- m_variables[_name] = SMTVariableType::Integer;
write("(declare-const |" + _name + "| Int)");
return SolverInterface::newInteger(move(_name));
}
Expression SMTLib2Interface::newBool(string _name)
{
- solAssert(!m_variables.count(_name), "");
- m_variables[_name] = SMTVariableType::Bool;
write("(declare-const |" + _name + "| Bool)");
return SolverInterface::newBool(std::move(_name));
}
@@ -151,9 +145,8 @@ string SMTLib2Interface::checkSatAndGetValuesCommand(vector<Expression> const& _
for (size_t i = 0; i < _expressionsToEvaluate.size(); i++)
{
auto const& e = _expressionsToEvaluate.at(i);
- solAssert(m_variables.count(e.name), "");
- solAssert(m_variables[e.name] == SMTVariableType::Integer, "");
- command += "(declare-const |EVALEXPR_" + to_string(i) + "| Int)\n";
+ solAssert(e.sort == Sort::Int || e.sort == Sort::Bool, "Invalid sort for expression to evaluate.");
+ command += "(declare-const |EVALEXPR_" + to_string(i) + "| " + (e.sort == Sort::Int ? "Int" : "Bool") + "\n";
command += "(assert (= |EVALEXPR_" + to_string(i) + "| " + toSExpr(e) + "))\n";
}
command += "(check-sat)\n";
diff --git a/libsolidity/formal/SMTLib2Interface.h b/libsolidity/formal/SMTLib2Interface.h
index e827449f..63188acd 100644
--- a/libsolidity/formal/SMTLib2Interface.h
+++ b/libsolidity/formal/SMTLib2Interface.h
@@ -68,14 +68,6 @@ private:
ReadCallback::Callback m_queryCallback;
std::vector<std::string> m_accumulatedOutput;
-
- enum class SMTVariableType {
- Function,
- Integer,
- Bool
- };
-
- std::map<std::string,SMTVariableType> m_variables;
};
}
diff --git a/libsolidity/formal/SolverInterface.h b/libsolidity/formal/SolverInterface.h
index a69d19d5..ac722dad 100644
--- a/libsolidity/formal/SolverInterface.h
+++ b/libsolidity/formal/SolverInterface.h
@@ -44,7 +44,7 @@ enum class CheckResult
enum class Sort
{
- Int, Bool
+ Int, Bool, IntIntFun
};
/// C++ representation of an SMTLIB2 expression.
@@ -52,10 +52,10 @@ class Expression
{
friend class SolverInterface;
public:
- explicit Expression(bool _v): name(_v ? "true" : "false") {}
- Expression(size_t _number): name(std::to_string(_number)) {}
- Expression(u256 const& _number): name(_number.str()) {}
- Expression(bigint const& _number): name(_number.str()) {}
+ explicit Expression(bool _v): name(_v ? "true" : "false"), sort(Sort::Bool) {}
+ Expression(size_t _number): name(std::to_string(_number)), sort(Sort::Int) {}
+ Expression(u256 const& _number): name(_number.str()), sort(Sort::Int) {}
+ Expression(bigint const& _number): name(_number.str()), sort(Sort::Int) {}
Expression(Expression const&) = default;
Expression(Expression&&) = default;
@@ -64,26 +64,27 @@ public:
static Expression ite(Expression _condition, Expression _trueValue, Expression _falseValue)
{
+ solAssert(_trueValue.sort == _falseValue.sort, "");
return Expression("ite", std::vector<Expression>{
std::move(_condition), std::move(_trueValue), std::move(_falseValue)
- });
+ }, _trueValue.sort);
}
friend Expression operator!(Expression _a)
{
- return Expression("not", std::move(_a));
+ return Expression("not", std::move(_a), Sort::Bool);
}
friend Expression operator&&(Expression _a, Expression _b)
{
- return Expression("and", std::move(_a), std::move(_b));
+ return Expression("and", std::move(_a), std::move(_b), Sort::Bool);
}
friend Expression operator||(Expression _a, Expression _b)
{
- return Expression("or", std::move(_a), std::move(_b));
+ return Expression("or", std::move(_a), std::move(_b), Sort::Bool);
}
friend Expression operator==(Expression _a, Expression _b)
{
- return Expression("=", std::move(_a), std::move(_b));
+ return Expression("=", std::move(_a), std::move(_b), Sort::Bool);
}
friend Expression operator!=(Expression _a, Expression _b)
{
@@ -91,52 +92,54 @@ public:
}
friend Expression operator<(Expression _a, Expression _b)
{
- return Expression("<", std::move(_a), std::move(_b));
+ return Expression("<", std::move(_a), std::move(_b), Sort::Bool);
}
friend Expression operator<=(Expression _a, Expression _b)
{
- return Expression("<=", std::move(_a), std::move(_b));
+ return Expression("<=", std::move(_a), std::move(_b), Sort::Bool);
}
friend Expression operator>(Expression _a, Expression _b)
{
- return Expression(">", std::move(_a), std::move(_b));
+ return Expression(">", std::move(_a), std::move(_b), Sort::Bool);
}
friend Expression operator>=(Expression _a, Expression _b)
{
- return Expression(">=", std::move(_a), std::move(_b));
+ return Expression(">=", std::move(_a), std::move(_b), Sort::Bool);
}
friend Expression operator+(Expression _a, Expression _b)
{
- return Expression("+", std::move(_a), std::move(_b));
+ return Expression("+", std::move(_a), std::move(_b), Sort::Int);
}
friend Expression operator-(Expression _a, Expression _b)
{
- return Expression("-", std::move(_a), std::move(_b));
+ return Expression("-", std::move(_a), std::move(_b), Sort::Int);
}
friend Expression operator*(Expression _a, Expression _b)
{
- return Expression("*", std::move(_a), std::move(_b));
+ return Expression("*", std::move(_a), std::move(_b), Sort::Int);
}
Expression operator()(Expression _a) const
{
+ solAssert(sort == Sort::IntIntFun, "Attempted function application to non-function.");
solAssert(arguments.empty(), "Attempted function application to non-function.");
- return Expression(name, _a);
+ return Expression(name, _a, Sort::Int);
}
std::string const name;
std::vector<Expression> const arguments;
+ Sort sort;
private:
/// Manual constructor, should only be used by SolverInterface and this class itself.
- Expression(std::string _name, std::vector<Expression> _arguments):
- name(std::move(_name)), arguments(std::move(_arguments)) {}
-
- explicit Expression(std::string _name):
- Expression(std::move(_name), std::vector<Expression>{}) {}
- Expression(std::string _name, Expression _arg):
- Expression(std::move(_name), std::vector<Expression>{std::move(_arg)}) {}
- Expression(std::string _name, Expression _arg1, Expression _arg2):
- Expression(std::move(_name), std::vector<Expression>{std::move(_arg1), std::move(_arg2)}) {}
+ Expression(std::string _name, std::vector<Expression> _arguments, Sort _sort):
+ name(std::move(_name)), arguments(std::move(_arguments)), sort(_sort) {}
+
+ explicit Expression(std::string _name, Sort _sort):
+ Expression(std::move(_name), std::vector<Expression>{}, _sort) {}
+ Expression(std::string _name, Expression _arg, Sort _sort):
+ Expression(std::move(_name), std::vector<Expression>{std::move(_arg)}, _sort) {}
+ Expression(std::string _name, Expression _arg1, Expression _arg2, Sort _sort):
+ Expression(std::move(_name), std::vector<Expression>{std::move(_arg1), std::move(_arg2)}, _sort) {}
};
DEV_SIMPLE_EXCEPTION(SolverError);
@@ -149,20 +152,21 @@ public:
virtual void push() = 0;
virtual void pop() = 0;
- virtual Expression newFunction(std::string _name, Sort /*_domain*/, Sort /*_codomain*/)
+ virtual Expression newFunction(std::string _name, Sort _domain, Sort _codomain)
{
+ solAssert(_domain == Sort::Int && _codomain == Sort::Int, "Function sort not supported.");
// Subclasses should do something here
- return Expression(std::move(_name), {});
+ return Expression(std::move(_name), {}, Sort::IntIntFun);
}
virtual Expression newInteger(std::string _name)
{
// Subclasses should do something here
- return Expression(std::move(_name), {});
+ return Expression(std::move(_name), {}, Sort::Int);
}
virtual Expression newBool(std::string _name)
{
// Subclasses should do something here
- return Expression(std::move(_name), {});
+ return Expression(std::move(_name), {}, Sort::Bool);
}
virtual void addAssertion(Expression const& _expr) = 0;
generated by cgit (git 2.34.1) at 2024-11-18 14:06:27 +0800