[SMTChecker] Implement support for memory allocation

This commit is contained in:
Alex Beregszaszi
2020-09-25 15:56:24 +01:00
parent 1cc0d642e8
commit 9f3d5d3e2f
8 changed files with 104 additions and 8 deletions
@@ -0,0 +1,36 @@
pragma experimental SMTChecker;
contract C {
function f() public pure {
bytes memory x = new bytes(0);
assert(x.length == 0);
}
function g() public pure {
bytes memory x = new bytes(3);
assert(x.length == 3);
assert(x[0] == 0);
assert(x[1] == 0);
assert(x[2] == 0);
}
function h() public pure {
bytes memory x = new bytes(3);
assert(x.length == 3);
x[0] = 0x12;
x[1] = 0x34;
assert(x[0] == 0x12);
assert(x[1] == 0x34);
// This should be an out-of-bounds assertion.
x[5] = 0xff;
assert(x[5] == 0xff);
}
function h(uint size) public pure {
bytes memory x = new bytes(size);
assert(x.length == size);
require(size >= 2);
x[0] = 0x12;
x[1] = 0x34;
assert(x[0] == 0x12);
assert(x[1] == 0x34);
}
}
// ----
@@ -0,0 +1,36 @@
pragma experimental SMTChecker;
contract C {
function f() public pure {
uint[] memory x = new uint[](0);
assert(x.length == 0);
}
function g() public pure {
uint[] memory x = new uint[](3);
assert(x.length == 3);
assert(x[0] == 0);
assert(x[1] == 0);
assert(x[2] == 0);
}
function h() public pure {
uint[] memory x = new uint[](3);
assert(x.length == 3);
x[0] = 0x12;
x[1] = 0x34;
assert(x[0] == 0x12);
assert(x[1] == 0x34);
// This should be an out-of-bounds assertion.
x[5] = 0xff;
assert(x[5] == 0xff);
}
function h(uint size) public pure {
uint[] memory x = new uint[](size);
assert(x.length == size);
require(size >= 2);
x[0] = 0x12;
x[1] = 0x34;
assert(x[0] == 0x12);
assert(x[1] == 0x34);
}
}
// ----
@@ -7,8 +7,8 @@ contract C {
function(uint) returns (uint)[10] storage b = y;
function(uint) external returns (uint)[] memory c;
c = new function(uint) external returns (uint)[](200);
assert(c.length == 200);
a; b;
}
}
// ----
// Warning 4588: (361-410): Assertion checker does not yet implement this type of function call.
@@ -14,6 +14,7 @@ contract C {
}
function f() public pure {
S[] memory s1 = new S[](3);
assert(s1.length == 3);
s1[0].x = 2;
assert(s1[0].x == 2);
s1[1].t.y = 3;
@@ -27,4 +28,3 @@ contract C {
}
}
// ----
// Warning 4588: (217-227): Assertion checker does not yet implement this type of function call.
@@ -14,6 +14,7 @@ contract C {
}
function f(S memory s2) public pure {
S[] memory s1 = new S[](3);
assert(s1.length == 3);
s1[0].x = 2;
assert(s1[0].x == s2.x);
s1[1].t.y = 3;
@@ -27,9 +28,8 @@ contract C {
}
}
// ----
// Warning 6328: (257-280): Assertion violation happens here.
// Warning 6328: (301-328): Assertion violation happens here.
// Warning 6328: (350-379): Assertion violation happens here.
// Warning 6328: (404-439): Assertion violation happens here.
// Warning 6328: (467-508): Assertion violation happens here.
// Warning 4588: (228-238): Assertion checker does not yet implement this type of function call.
// Warning 6328: (283-306): Assertion violation happens here.
// Warning 6328: (327-354): Assertion violation happens here.
// Warning 6328: (376-405): Assertion violation happens here.
// Warning 6328: (430-465): Assertion violation happens here.
// Warning 6328: (493-534): Assertion violation happens here.