digraph CFG {
  node [fontname="Helvetica"];
  n36 [label="2", shape=box];
  n36 -> n37;
  n37 [label="CALL f(2, 3)", shape=box, style=filled, color=orange];
  n37 -> n4;
  n4 [label="START f(x, y, z)", shape=box, style=filled, color=green];
  n4 -> n6;
  n6 [label="2", shape=box];
  n6 -> n7;
  n7 [label="y = 2", shape=box];
  n7 -> n8;
  n8 [label="3", shape=box];
  n8 -> n9;
  n9 [label="z = 3", shape=box];
  n9 -> n29;
  n29 [label="x", shape=box];
  n29 -> n30;
  n30 [label="CALL g(x)", shape=box, style=filled, color=orange];
  n30 -> n11;
  n11 [label="START g(x)", shape=box, style=filled, color=green];
  n11 -> n13;
  n13 [label="7", shape=box];
  n13 -> n14;
  n14 [label="x = 7", shape=box];
  n14 -> n15;
  n15 [label="y", shape=box];
  n15 -> n16;
  n16 [label="0", shape=box];
  n16 -> n17;
  n17 [label="(y > 0)", shape=box];
  n17 -> n18;
  n18 [label="<>", shape=diamond];
  n18 -> n22 [label="T"];
  n22 [label="y", shape=box];
  n22 -> n23;
  n23 [label="CALL g(y)", shape=box, style=filled, color=orange];
  n23 -> n11;
  n23 -> n25;
  n25 [label="RET g(y)", shape=box, style=filled, color=orange];
  n25 -> n28;
  n28 [label="x", shape=box];
  n28 -> n12;
  n12 [label="END g(x)", shape=box, style=filled, color=green];
  n12 -> n25;
  n12 -> n32;
  n32 [label="RET g(x)", shape=box, style=filled, color=orange];
  n32 -> n33;
  n33 [label="x", shape=box];
  n33 -> n34;
  n34 [label="(g(x) + x)", shape=box];
  n34 -> n5;
  n5 [label="END f(x, y, z)", shape=box, style=filled, color=green];
  n5 -> n39;
  n39 [label="RET f(2, 3)", shape=box, style=filled, color=orange];
  n34 -> n5;
  n18 -> n26 [label="F"];
  n26 [label="8", shape=box];
  n26 -> n27;
  n27 [label="x = 8", shape=box];
  n27 -> n28;
  n30 -> n32;
  n37 -> n39;
}