[SMTChecker] Implement support for memory allocation

test/libsolidity/smtCheckerTests/operators/bytes_new.sol

@@ -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);
+	}
+}
+// ----

test/libsolidity/smtCheckerTests/operators/integer_new.sol

@@ -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);
+	}
+}
+// ----