acceptable_dual_inf_tol:

"Acceptance" threshold for the dual infeasibility. $\;$
Absolute tolerance on the dual infeasibility. "Acceptable" termination requires that the (max-norm of the unscaled) dual infeasibility is less than this threshold; see also acceptable_tol. The valid range for this real option is $0 < {\tt acceptable\_dual\_inf\_tol } < {\tt +inf}$ and its default value is $1 \cdot 10^{+10}$.