Consider the following test t, and the values of f 1, f 2, and f 4, for program P9.5. t: ,f 1(0) = 0,f 2(0) = 4,f 4(0) = 5 Also assume that the output statement in Program P9.5 is as in Exercise...

Consider the following test t, and the values of f 1, f 2, and f 4, for program P9.5. t: <>,f 1(0) = 0,f 2(0) = 4,f 4(0) = 5 Also assume that the output statement in Program P9.5 is as in Exercise 9.10. (a) Construct the DDG for Program P9.8 from its execution trace on t. (b) Compute the dynamic slices with respect to x and w at line 8. (c) Suppose P is P9.8 obtained from P9.5 by adding two initialization statements for w and z and removing the else part from the if statement. Program P9.8 1 input (x, y); 2 w=1; 3 z=1; 4 while (x<>