Add verification target for empty pop

test/libsolidity/smtCheckerTests/array_members/pop_1_safe.sol

@@ -0,0 +1,9 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint[] a;
+	function f() public {
+		a.push();
+		a.pop();
+	}
+}

test/libsolidity/smtCheckerTests/array_members/pop_1_unsafe.sol

@@ -0,0 +1,10 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint[] a;
+	function f() public {
+		a.pop();
+	}
+}
+// ----
+// Warning: (82-89): Empty array "pop" detected here.

test/libsolidity/smtCheckerTests/array_members/pop_2d_safe.sol

@@ -0,0 +1,10 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint[][] a;
+	function f() public {
+		a.push();
+		a[0].push();
+		a[0].pop();
+	}
+}

test/libsolidity/smtCheckerTests/array_members/pop_2d_unsafe.sol

@@ -0,0 +1,10 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint[][] a;
+	function f() public {
+		a.push();
+		a[0].push();
+		a[1].pop();
+	}
+}

test/libsolidity/smtCheckerTests/array_members/pop_constructor_safe.sol

@@ -0,0 +1,9 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint[] a;
+	constructor() public {
+		a.push();
+		a.pop();
+	}
+}

test/libsolidity/smtCheckerTests/array_members/pop_constructor_unsafe.sol

@@ -0,0 +1,8 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint[] a;
+	constructor() public {
+		a.pop();
+	}
+}

test/libsolidity/smtCheckerTests/array_members/pop_loop_safe.sol

@@ -0,0 +1,11 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint[] a;
+	function f(uint l) public {
+		for (uint i = 0; i < l; ++i) {
+			a.push();
+			a.pop();
+		}
+	}
+}

test/libsolidity/smtCheckerTests/array_members/pop_loop_unsafe.sol

@@ -0,0 +1,12 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint[] a;
+	function f(uint l) public {
+		for (uint i = 0; i < l; ++i) {
+			a.push();
+			a.pop();
+		}
+		a.pop();
+	}
+}

test/libsolidity/smtCheckerTests/array_members/push_2d_arg_1_safe.sol

@@ -3,10 +3,7 @@ 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_2d_arg_1_unsafe.sol

@@ -0,0 +1,11 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint[][] a;
+	function f(uint[] memory x, uint y) public {
+		a.push(x);
+		a[0].push(y);
+		a[0].pop();
+		assert(a[0][a[0].length - 1] == y);
+	}
+}

test/libsolidity/smtCheckerTests/array_members/push_arg_1.sol

@@ -3,7 +3,6 @@ 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_overflow_1_safe_no_overflow_assumption.sol

@@ -8,4 +8,3 @@ contract C {
 		assert(x[0] == 42);
 	}
 }
-// ----

test/libsolidity/smtCheckerTests/array_members/push_overflow_2_safe_no_overflow_assumption.sol

@@ -11,5 +11,3 @@ contract C {
 		assert(x[0] == 42);
 	}
 }
-
-// ----

test/libsolidity/smtCheckerTests/array_members/push_zero_2d_safe.sol

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

test/libsolidity/smtCheckerTests/array_members/push_zero_2d_unsafe.sol

@@ -0,0 +1,10 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint[][] a;
+	function f() public {
+		a.push();
+		a[0].push();
+		assert(a[a.length - 1][0] == 100);
+	}
+}

test/libsolidity/smtCheckerTests/array_members/push_zero_safe.sol

@@ -0,0 +1,9 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint[] a;
+	function f() public {
+		a.push();
+		assert(a[a.length - 1] == 0);
+	}
+}

test/libsolidity/smtCheckerTests/array_members/push_zero_unsafe.sol

@@ -0,0 +1,9 @@
+pragma experimental SMTChecker;
+
+contract C {
+	uint[] a;
+	function f() public {
+		a.push();
+		assert(a[a.length - 1] == 100);
+	}
+}