When I run the xtclsh in ISE with the following command lines, it hangs:
% timing_analysis open freqm.ise
% timing_analysis new query -name q1
% timing_analysis set q1 analysis_type net
% timing_analysis set_query q1 "net_name" -ld 3 -hf 3
You can work around this problem by querying the net and doing timing analysis in the standalone mode of Timing Analyzer.
This problem will be fixed in a future release of the design tools.