A =

 3 3 -1 -1 3 -4 -3
 0 0 3 -2 5 -2 3
 4 -1 -4 3 -4 -2 4
 0 0 0 0 3 -2 3
 5 -3 -3 5 -1 -2 4
 0 -1 -2 -2 4 -3 4
 -1 -1 5 3 -2 0 3

xexact =

 2
 2
 1
 1
 -1
 3
 4

b =

 -17
 2
 19
 3
 17
 -3
 18

temp = 4
point = 3
temp = 5
point = 5
step = 1
A =

 0 4.8 0.8 -4 3.6 -2.8 -5.4
 0 0 3 -2 5 -2 3
 0 1.4 -1.6 -1 -3.2 -0.4 0.8
 0 0 0 0 3 -2 3
 5 -3 -3 5 -1 -2 4
 0 -1 -2 -2 4 -3 4
 0 -1.6 4.4 4 -2.2 -0.4 3.8

temp = 1.4
point = 3
temp = 4.8
point = 5
step = 2
A =

 0 4.8 0.8 -4 3.6 -2.8 -5.4
 0 0 3 -2 5 -2 3
 0 0 -1.83333 0.166667 -4.25 0.416667 2.375
 0 0 0 0 3 -2 3
 5 -3 -3 5 -1 -2 4
 0 0 -1.83333 -2.83333 4.75 -3.58333 2.875
 0 0 4.66667 2.66667 -1 -1.33333 2

temp = 3
point = 5
temp = 4.66667
point = 7
step = 3
A =

 0 4.8 0.8 -4 3.6 -2.8 -5.4
 0 0 0 -3.71429 5.64286 -1.14286 1.71429
 0 0 0 1.21429 -4.64286 -0.107143 3.16071
 0 0 0 0 3 -2 3
 5 -3 -3 5 -1 -2 4
 0 0 0 -1.78571 4.35714 -4.10714 3.66071
 0 0 4.66667 2.66667 -1 -1.33333 2

temp = 3.71429
point = 5
step = 4
A =

 0 4.8 0.8 -4 3.6 -2.8 -5.4
 0 0 0 -3.71429 5.64286 -1.14286 1.71429
 0 0 0 0 -2.79808 -0.480769 3.72115
 0 0 0 0 3 -2 3
 5 -3 -3 5 -1 -2 4
 0 0 0 0 1.64423 -3.55769 2.83654
 0 0 4.66667 2.66667 -1 -1.33333 2

step = 5
A =

 0 4.8 0.8 -4 3.6 -2.8 -5.4
 0 0 0 -3.71429 5.64286 -1.14286 1.71429
 0 0 0 0 0 -2.34615 6.51923
 0 0 0 0 3 -2 3
 5 -3 -3 5 -1 -2 4
 0 0 0 0 2.22045e-16 -2.46154 1.19231
 0 0 4.66667 2.66667 -1 -1.33333 2

step = 6
A =

 0 4.8 0.8 -4 3.6 -2.8 -5.4
 0 0 0 -3.71429 5.64286 -1.14286 1.71429
 0 0 0 0 -2.11636e-16 0 5.38281
 0 0 0 0 3 -2 3
 5 -3 -3 5 -1 -2 4
 0 0 0 0 2.22045e-16 -2.46154 1.19231
 0 0 4.66667 2.66667 -1 -1.33333 2

With the final answer for Ax=b as x equals:
ans =

 2
 2
 1
 1
 -1
 3
 4

error =

 -6.66134e-16
 -4.44089e-16
 -5.55112e-16
 4.44089e-16
 3.33067e-16
 -4.44089e-16
 -4.44089e-16

The ending state of the pointers:
p =

 5 1 7 2 4 6 3