Assume that push will not overflow

test/libsolidity/smtCheckerTests/array_members/push.sol

@@ -0,0 +1,10 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint[] a;
+	function f(uint x) public {
+		require(a.length < 100000);
+		a.push(x);
+		assert(a[a.length - 1] == x);
+	}
+}

test/libsolidity/smtCheckerTests/array_members/push_2d.sol

@@ -0,0 +1,13 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint[][] a;
+	function f(uint[] memory x, uint y) public {
+		require(a.length < 100000);
+		a.push(x);
+		assert(a[a.length - 1][0] == x[0]);
+		require(a[0].length < 100000);
+		a[0].push(y);
+		assert(a[0][a[0].length - 1] == y);
+	}
+}

test/libsolidity/smtCheckerTests/array_members/push_overflow_1_safe.sol

@@ -0,0 +1,10 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint256[] x;
+	constructor() public { x.push(42); }
+	function f() public {
+		x.push(23);
+		assert(x[0] == 42 || x[0] == 23);
+	}
+}

test/libsolidity/smtCheckerTests/array_members/push_overflow_1_safe_no_overflow_assumption.sol

@@ -0,0 +1,11 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint256[] x;
+	constructor() public { x.push(42); }
+	function f() public {
+		x.push(23);
+		assert(x[0] == 42);
+	}
+}
+// ----

test/libsolidity/smtCheckerTests/array_members/push_overflow_2_safe.sol

@@ -0,0 +1,12 @@
+contract C {
+	uint256[] x;
+	function f(uint256 l) public {
+		require(x.length == 0);
+		x.push(42);
+		x.push(84);
+		for(uint256 i = 0; i < l; ++i)
+			x.push(23);
+		assert(x[0] == 42 || x[0] == 23);
+	}
+}
+

test/libsolidity/smtCheckerTests/array_members/push_overflow_2_safe_no_overflow_assumption.sol

@@ -0,0 +1,15 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint256[] x;
+	function f(uint256 l) public {
+		require(x.length == 0);
+		x.push(42);
+		x.push(84);
+		for(uint256 i = 0; i < l; ++i)
+			x.push(23);
+		assert(x[0] == 42);
+	}
+}
+
+// ----