Segfault on read

[jpotoff]

This problem is caused by operator error in building the PSF file, but, the code should exit cleanly with an error message, not a segfault. This was caused because the angles section of the PSF field was not populated. segfault_on_read.zip

`Bonds parameter: Atom Types Kb(K) b0(A) CH3 CTL FIX 1.5400 CTL CH2 FIX 1.5400 CTL CH3 FIX 1.5400 CH2 CHL FIX 1.5400 CHL CH3 FIX 1.5400

Angles parameter: Atom Types Ktheta(K) theta0(degree) Dihedrals parameter: Atom Types Kchi(K) n delta(degree)

[New Thread 0x2aaab4407700 (LWP 4565)] [New Thread 0x2aaab478b700 (LWP 4566)]

Program received signal SIGSEGV, Segmentation fault. 0x0000000000569e79 in cbmc::DCHedron::DCHedron(cbmc::DCData*, mol_setup::MolKind const&, unsigned int, unsigned int) ()'