segfault at end of bcalm (probably due to valgrind error) about bcalm HOT 8 CLOSED

[..]
[Iterating DSK partitions                ]  75   %   elapsed:   3 min 17 sec   remaining:   1 min 6  sec
Partition 25 has 1520 kmers
Loaded 503 doubled kmers for partition 25
Iterated 1520 kmers, among them 403 has leftmin!=rightmin
==7688== Conditional jump or move depends on uninitialised value(s)
==7688==    at 0xF8C928: graph3::debruijn() (ograph.cpp:362)
==7688==    by 0xF95771: bcalm_1::execute()::{lambda(int)#6}::operator()(int) const (bcalm_1.cpp:485)
[..]

==9529== Invalid read of size 4
==9529==    at 0x7091E2: __tcf_3 (in /home/rayan/bcalm-gatb/build/bcalm)
==9529==    by 0x5CCAB28: __run_exit_handlers (exit.c:82)
==9529==    by 0x5CCAB74: exit (exit.c:104)
==9529==    by 0x5CB4B4B: (below main) (libc-start.c:321)
==9529==  Address 0x8f0109e1b0 is not stack'd, malloc'd or (recently) free'd

Program received signal SIGSEGV, Segmentation fault.
0x00000000007091e2 in __tcf_3 ()
(gdb) bt
#0  0x00000000007091e2 in __tcf_3 ()
#1  0x00007ffff6c0ab29 in __run_exit_handlers (status=0, listp=0x7ffff6f785a8 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:82
#2  0x00007ffff6c0ab75 in __GI_exit (status=<optimized out>) at exit.c:104
#3  0x00007ffff6bf4b4c in __libc_start_main (main=0x6edf50 <main>, argc=7, argv=0x7fffffffdc18, init=<optimized out>, fini=<optimized out>,
    rtld_fini=<optimized out>, stack_end=0x7fffffffdc08) at libc-start.c:321
#4  0x00000000006ee9cf in _start ()