[SMTChecker] Adding a dummy frame to the call stack for the implicit constructor

test/libsolidity/smtCheckerTests/bmc_coverage/assert_in_constructor.sol

@@ -0,0 +1,21 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint x = initX();
+
+	function initX() internal pure returns (uint) {
+		return 42;
+	}
+}
+
+contract D is C {
+	uint y;
+
+	constructor() {
+		assert(x == 42);
+		y = x;
+	}
+}
+// ====
+// SMTEngine: bmc
+// ----

test/libsolidity/smtCheckerTests/bmc_coverage/implicit_constructor_with_function_calls.sol

@@ -0,0 +1,19 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint x = initX();
+	uint y = initY();
+
+    function initX() internal pure returns (uint) {
+		return 42;
+	}
+
+	function initY() internal view returns (uint) {
+		assert(x == 42);
+		return x;
+	}
+}
+// ====
+// SMTEngine: bmc
+// ----
+// Warning 4661: (205-220): BMC: Assertion violation happens here.

test/libsolidity/smtCheckerTests/bmc_coverage/math.sol

@@ -22,4 +22,4 @@ contract C {
 // Warning 4144: (217-222): BMC: Underflow (resulting value less than 0) happens here.
 // Warning 2661: (293-298): BMC: Overflow (resulting value larger than 2**256 - 1) happens here.
 // Warning 3046: (369-374): BMC: Division by zero happens here.
-// Warning 6084: (68-73): BMC: Underflow (resulting value less than 0) happens here.
+// Warning 4144: (68-73): BMC: Underflow (resulting value less than 0) happens here.