valgrind sees serious errors in libcobol.so
$ valgrind --tool=callgrind --collect-jumps=yes --dump-instr=yes ./a.out
--3769-- WARNING: Serious error when reading debug info
--3769-- When reading debug info from /tmp/gnucobol-bug-hunting/a.out:
--3769-- Ignoring non-Dwarf2/3/4 block in .debug_info
--3769-- WARNING: Serious error when reading debug info
--3769-- When reading debug info from /usr/lib/x86_64-linux-gnu/libgcobol.so.4.0.0:
--3769-- Ignoring non-Dwarf2/3/4 block in .debug_info
--3769-- WARNING: Serious error when reading debug info
--3769-- When reading debug info from /usr/lib/x86_64-linux-gnu/libgcobol.so.4.0.0:
--3769-- Ignoring non-Dwarf2/3/4 block in .debug_info
--3769-- WARNING: Serious error when reading debug info
--3769-- When reading debug info from /usr/lib/x86_64-linux-gnu/libgcobol.so.4.0.0:
--3769-- Ignoring non-Dwarf2/3/4 block in .debug_info
--3769-- WARNING: Serious error when reading debug info
--3769-- When reading debug info from /usr/lib/x86_64-linux-gnu/libgcobol.so.4.0.0:
--3769-- Ignoring non-Dwarf2/3/4 block in .debug_info
--3769-- WARNING: Serious error when reading debug info
--3769-- When reading debug info from /usr/lib/x86_64-linux-gnu/libgcobol.so.4.0.0:
--3769-- Ignoring non-Dwarf2/3/4 block in .debug_info
--3769-- WARNING: Serious error when reading debug info
--3769-- When reading debug info from /usr/lib/x86_64-linux-gnu/libgcobol.so.4.0.0:
--3769-- Ignoring non-Dwarf2/3/4 block in .debug_info
--3769-- WARNING: Serious error when reading debug info
--3769-- When reading debug info from /usr/lib/x86_64-linux-gnu/libgcobol.so.4.0.0:
--3769-- Ignoring non-Dwarf2/3/4 block in .debug_info
==3769== brk segment overflow in thread #1: can't grow to 0x484c000
==3769== (see section Limitations in user manual)
==3769== NOTE: further instances of this message will not be shown
==3769==
==3769== Events : Ir
==3769== Collected : 9255912435
==3769==
==3769== I refs: 9,255,912,435
Can this be adjusted, allowing it to be run without errors?