max_cpu_time:

Maximum number of CPU seconds. $\;$
A limit on CPU seconds that Ipopt can use to solve one problem. If during the convergence check this limit is exceeded, Ipopt will terminate with a corresponding error message. The valid range for this real option is $0 < {\tt max\_cpu\_time } < {\tt +inf}$ and its default value is $1 \cdot 10^{+06}$.