digraph chapter06 {
/*
int a = 0;
int b = 1;
if( arg ) {
    a = 2;
    if( arg ) { b = 2; }
    else b = 3;
}
return a+b;

*/
	rankdir=BT;
	ordering="in";
	concentrate="true";
	subgraph cluster_Nodes {
		Start2 [ shape=plaintext label=<
			<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0" CELLPADDING="4">
			<TR><TD BGCOLOR="yellow">Start</TD></TR>
			<TR><TD>
				<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
				<TR><TD PORT="p0" BGCOLOR="yellow">$ctrl</TD><TD PORT="p1">arg</TD></TR>
				</TABLE>
			</TD></TR>
			</TABLE>>
		];
		Stop3 [ shape=box style=filled fillcolor=yellow label="Stop" ];
		Con_6 [ label="#0" ];
		Con_7 [ label="#1" ];
		If8 [ shape=plaintext label=<
			<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0" CELLPADDING="4">
			<TR><TD BGCOLOR="yellow">If</TD></TR>
			<TR><TD>
				<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
				<TR><TD PORT="p0" BGCOLOR="yellow">True</TD><TD PORT="p1" BGCOLOR="yellow">False</TD></TR>
				</TABLE>
			</TD></TR>
			</TABLE>>
		];
		Con_12 [ label="#2" ];
		If13 [ shape=plaintext label=<
			<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0" CELLPADDING="4">
			<TR><TD BGCOLOR="yellow">If</TD></TR>
			<TR><TD>
				<TABLE BORDER="0" CELLBORDER="1" CELLSPACING="0">
				<TR><TD PORT="p0" BGCOLOR="yellow">True</TD><TD PORT="p1" BGCOLOR="yellow">False</TD></TR>
				</TABLE>
			</TD></TR>
			</TABLE>>
		];
		Con_17 [ label="#2" ];
		Con_18 [ label="#3" ];
		Region19 [ shape=box style=filled fillcolor=yellow label="Region" ];
		Phi_b20 [ style=filled fillcolor=lightyellow label="&phi;_b" ];
		Region21 [ shape=box style=filled fillcolor=yellow label="Region" ];
		Phi_a22 [ style=filled fillcolor=lightyellow label="&phi;_a" ];
		Phi_b23 [ style=filled fillcolor=lightyellow label="&phi;_b" ];
		Add24 [ label="+" ];
		Return25 [ shape=box style=filled fillcolor=yellow label="Return" ];
		{ rank=same; Region19;Phi_b20;}
		{ rank=same; Region21;Phi_b23;Phi_a22;}
	}
	edge [ fontname=Helvetica, fontsize=8 ];
	Stop3 -> Return25[taillabel=0 color=red];
	If8 -> Start2:p0[taillabel=0 color=red];
	If8 -> Start2:p1[taillabel=1];
	If13 -> If8:p0[taillabel=0 color=red];
	If13 -> Start2:p1[taillabel=1];
	Region19 -> If13:p0[taillabel=1 color=red];
	Region19 -> If13:p1[taillabel=2 color=red];
	Phi_b20 -> Region19 [style=dotted taillabel=0];
	Phi_b20 -> Con_17[taillabel=1];
	Phi_b20 -> Con_18[taillabel=2];
	Region21 -> Region19[taillabel=1 color=red];
	Region21 -> If8:p1[taillabel=2 color=red];
	Phi_a22 -> Region21 [style=dotted taillabel=0];
	Phi_a22 -> Con_12[taillabel=1];
	Phi_a22 -> Con_6[taillabel=2];
	Phi_b23 -> Region21 [style=dotted taillabel=0];
	Phi_b23 -> Phi_b20[taillabel=1];
	Phi_b23 -> Con_7[taillabel=2];
	Add24 -> Phi_b23[taillabel=1];
	Add24 -> Phi_a22[taillabel=2];
	Return25 -> Region21[taillabel=0 color=red];
	Return25 -> Add24[taillabel=1];
}