If the URL of an executable is given with a http URI (rather than gsiftp) then pegasus-plan writes a bad shell script as it doesn't create a stage in transfer for the executable.

Instead, it just passes the URL to kickstart:

pegasus-kickstart -n inspiral-BNS02_INJ-H1_ID157 -N ID0032000 -R osg -L main -T 2016-11-10T17:51:17-05:00 http://pycbc.phy.syr.edu/pycbc-software/v1.5.5/x86_64/composer_xe_2015.0.090/pycbc_inspiral --pad-data 8 --strain-high-pass 20 --sample-rate 4096 --segment-length 256 ...

and kickstart fails with

kickstart[642339]: pegasus-kickstart.c[673]: FATAL: The main job specification is invalid or missing.

There should be a transfer for the http URL so pegasus-transfer can move it and chmod it correctly before it is run (or kickstart needs to be modified to be able to pull the executable via http itself).