mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
48 lines
886 B
Solidity
48 lines
886 B
Solidity
pragma experimental SMTChecker;
|
|
contract C {
|
|
bool a;
|
|
bool b;
|
|
bool c;
|
|
bool d;
|
|
bool e;
|
|
bool f;
|
|
function press_A() public {
|
|
if(e) { a = true; } else { reset(); }
|
|
}
|
|
function press_B() public {
|
|
if(c) { b = true; } else { reset(); }
|
|
}
|
|
function press_C() public {
|
|
if(a) { c = true; } else { reset(); }
|
|
}
|
|
function press_D() public {
|
|
d = true;
|
|
}
|
|
function press_E() public {
|
|
if(d) { e = true; } else { reset(); }
|
|
}
|
|
function press_F() public {
|
|
if(b) { f = true; } else { reset(); }
|
|
}
|
|
function is_not_solved() view public {
|
|
// f = true can be reached by calling the functions
|
|
// press_D()
|
|
// press_E()
|
|
// press_A()
|
|
// press_C()
|
|
// press_B()
|
|
// press_F()
|
|
assert(!f);
|
|
}
|
|
function reset() internal {
|
|
a = false;
|
|
b = false;
|
|
c = false;
|
|
d = false;
|
|
e = false;
|
|
f = false;
|
|
}
|
|
}
|
|
// ----
|
|
// Warning 6328: (689-699): Assertion violation happens here.
|