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Merge pull request #9925 from ethereum/develop

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Merge develop into breaking.
This commit is contained in:
chriseth
2020-09-29 16:42:56 +02:00
committed by GitHub
parent 4bdec8107c 2037b7d6b8
commit 9a28dbfebd
35 changed files with 772 additions and 228 deletions
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test/libsolidity/smtCheckerTests/loops/while_loop_array_assignment_storage_storage.sol
+2 -4
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@@ -14,13 +14,11 @@ contract LoopFor2 {
c[i] = b[i];
++i;
}
// Fails as false positive.
assert(b[0] == c[0]);
assert(a[0] == 900);
assert(b[0] == 900);
}
}
// ----
// Warning 6328: (320-339): CHC: Assertion violation happens here.
// Warning 6328: (343-362): CHC: Assertion violation happens here.
// Warning 4661: (296-316): BMC: Assertion violation happens here.
// Warning 6328: (290-309): CHC: Assertion violation happens here.
// Warning 6328: (313-332): CHC: Assertion violation happens here.
test/libsolidity/smtCheckerTests/math/addmod_1.sol
+21
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@@ -0,0 +1,21 @@
pragma experimental SMTChecker;
contract C {
function f() public pure {
assert(addmod(2**256 - 1, 10, 9) == 7);
uint y = 0;
uint x = addmod(2**256 - 1, 10, y);
assert(x == 1);
}
function g(uint x, uint y, uint k) public pure returns (uint) {
return addmod(x, y, k);
}
}
// ----
// Warning 1218: (83-108): CHC: Error trying to invoke SMT solver.
// Warning 1218: (141-166): CHC: Error trying to invoke SMT solver.
// Warning 1218: (76-114): CHC: Error trying to invoke SMT solver.
// Warning 1218: (170-184): CHC: Error trying to invoke SMT solver.
// Warning 1218: (263-278): CHC: Error trying to invoke SMT solver.
// Warning 3046: (141-166): BMC: Division by zero happens here.
// Warning 3046: (263-278): BMC: Division by zero happens here.
test/libsolidity/smtCheckerTests/math/addmod_mulmod.sol
+16
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@@ -0,0 +1,16 @@
pragma experimental SMTChecker;
contract C {
function test() public pure {
uint x;
if ((2**255 + 2**255) % 7 != addmod(2**255, 2**255, 7)) x = 1;
if ((2**255 + 2**255) % 7 != addmod(2**255, 2**255, 7)) x = 2;
assert(x == 0);
}
}
// ----
// Warning 1218: (118-143): CHC: Error trying to invoke SMT solver.
// Warning 1218: (183-208): CHC: Error trying to invoke SMT solver.
// Warning 1218: (219-233): CHC: Error trying to invoke SMT solver.
// Warning 6838: (93-143): BMC: Condition is always false.
// Warning 6838: (158-208): BMC: Condition is always false.
test/libsolidity/smtCheckerTests/math/addmod_mulmod_zero.sol
+35
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@@ -0,0 +1,35 @@
pragma experimental SMTChecker;
contract C {
function f(uint256 d) public pure {
uint x = addmod(1, 2, d);
assert(x < d);
}
function g(uint256 d) public pure {
uint x = mulmod(1, 2, d);
assert(x < d);
}
function h() public pure returns (uint256) {
uint x = mulmod(0, 1, 2);
uint y = mulmod(1, 0, 2);
assert(x == y);
uint z = addmod(0, 1, 2);
uint t = addmod(1, 0, 2);
assert(z == t);
}
}
// ----
// Warning 1218: (94-109): CHC: Error trying to invoke SMT solver.
// Warning 1218: (113-126): CHC: Error trying to invoke SMT solver.
// Warning 1218: (180-195): CHC: Error trying to invoke SMT solver.
// Warning 1218: (199-212): CHC: Error trying to invoke SMT solver.
// Warning 1218: (275-290): CHC: Error trying to invoke SMT solver.
// Warning 1218: (303-318): CHC: Error trying to invoke SMT solver.
// Warning 1218: (349-364): CHC: Error trying to invoke SMT solver.
// Warning 1218: (377-392): CHC: Error trying to invoke SMT solver.
// Warning 1218: (322-336): CHC: Error trying to invoke SMT solver.
// Warning 1218: (396-410): CHC: Error trying to invoke SMT solver.
// Warning 3046: (94-109): BMC: Division by zero happens here.
// Warning 3046: (180-195): BMC: Division by zero happens here.
test/libsolidity/smtCheckerTests/math/addmulmod.sol
+24
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@@ -0,0 +1,24 @@
pragma experimental SMTChecker;
contract C {
function test_addmod(uint x, uint y) public pure {
require(x % 13 == 0);
require(y % 13 == 0);
uint z = addmod(x, y, 13);
assert(z == 0);
}
function test_mulmod(uint x, uint y) public pure {
require(x % 13 == 0);
require(y % 13 == 0);
uint z = mulmod(x, y, 13);
assert(z == 0);
}
}
// ----
// Warning 1218: (158-174): CHC: Error trying to invoke SMT solver.
// Warning 1218: (178-192): CHC: Error trying to invoke SMT solver.
// Warning 1218: (309-325): CHC: Error trying to invoke SMT solver.
// Warning 1218: (329-343): CHC: Error trying to invoke SMT solver.
// Warning 7812: (329-343): BMC: Assertion violation might happen here.
test/libsolidity/smtCheckerTests/math/mulmod_1.sol
+21
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@@ -0,0 +1,21 @@
pragma experimental SMTChecker;
contract C {
function f() public pure {
assert(mulmod(2**256 - 1, 2, 14) == 2);
uint y = 0;
uint x = mulmod(2**256 - 1, 10, y);
assert(x == 1);
}
function g(uint x, uint y, uint k) public pure returns (uint) {
return mulmod(x, y, k);
}
}
// ----
// Warning 1218: (83-108): CHC: Error trying to invoke SMT solver.
// Warning 1218: (141-166): CHC: Error trying to invoke SMT solver.
// Warning 1218: (76-114): CHC: Error trying to invoke SMT solver.
// Warning 1218: (170-184): CHC: Error trying to invoke SMT solver.
// Warning 1218: (263-278): CHC: Error trying to invoke SMT solver.
// Warning 3046: (141-166): BMC: Division by zero happens here.
// Warning 3046: (263-278): BMC: Division by zero happens here.