$s\leftarrow \mathit{InitialSolution}$, $\mathit{InitializeScores}(\mathit{\pi }),i\leftarrow 0$

repeat

if i=$\omega$then

$N^{-}\leftarrow \mathit{ChooseDestroyOperator}(D_L,\mathit{\pi })$

else

$N^{-}\leftarrow \mathit{ChooseDestroyOperator}(D_S,\mathit{\pi })$

end if

$N^{+}\leftarrow \mathit{ChooseRepairOperator}(R,\mathit{\pi })$

$s\prime \leftarrow \mathit{DestroyAndRepair}(s,N^{-},N^{+})$

if i=$\omega$then

$s\prime \leftarrow \mathit{LocalSearch}(s\prime )$

$s\leftarrow s\prime$ // free pass

$i\leftarrow 0$

else if$f(s\prime )<(1+\theta )f(s^{⁎})$then

$s\prime \leftarrow \mathit{LocalSearch}(s\prime )$

end if

if$f(s\prime )<f(s)$then

$s\leftarrow s\prime$

$i\leftarrow 0$

else

$i\leftarrow i+1$

end if

if$f(s)<f(s^{⁎})$then

$s^{⁎}\leftarrow s$

end if

Update scores $(\mathit{\pi })$

until the stopping condition is met

return s⁎