Program received signal SIGFPE: Floating-point exception - erroneous arithmetic operation.

Backtrace for this error:
#0  0x15555459d7a2 in ???
#1  0x15555459c935 in ???
#2  0x15555384e5af in ???
#3  0x695f88 in __rsp_step_MOD_calculate_energies
	at private/rsp_step.f90:575
#4  0x62a5a7 in begin_calculation
	at private/rsp.f90:823
#5  0x62a5a7 in __rsp_MOD_rsp_setup_part1
	at private/rsp.f90:253
#6  0x5d071d in __read_model_MOD_finish_load_model
	at private/read_model.f90:154
#7  0x528c4e in model_builder
	at private/init.f90:1025
#8  0x52a8e4 in __init_MOD_create_rsp_model
	at private/init.f90:787
#9  0x42229e in __star_lib_MOD_star_create_rsp_model
	at public/star_lib.f90:3160
#10  0x41ae51 in do_load1_star
	at job/run_star_support.f90:1760
#11  0x41ae51 in do_before_evolve_loop
	at job/run_star_support.f90:326
#12  0x4218aa in __run_star_support_MOD_start_run1_star
	at job/run_star_support.f90:167
#13  0x421a61 in __run_star_support_MOD_run1_star
	at job/run_star_support.f90:108
#14  0x42ca0a in __run_star_MOD_do_run_star
	at job/run_star.f90:26
#15  0x406f20 in run
	at src/run.f90:13
#16  0x406f20 in main
	at src/run.f90:2
make: *** [/mnt/home/pmocz/ceph/mesa-git-tests/tmp.XRuRWdYM61/star/work/Makefile:16: run] Floating point exception (core dumped)