non-terminating benchmarks

[vogler]

The following programs in bench/single-thread don't terminate:

• 400.perlbench_comb.c
• 445.gobmk_comb.c
• wget-1.12_comb.c

The programs in bench/coreutils all terminate.

~Configuration:~ ~./goblint -v single-thread/wget-1.12_comb.c --enable exp.solver.td3.term --enable exp.earlyglobs --enable ana.int.interval --disable ana.int.enums --disable ana.int.def_exc --enable exp.widen-context --sets exp.privatization none~

Configuration after renames: ./goblint -v single-thread/wget-1.12_comb.c --enable solvers.td3.term --enable exp.earlyglobs --enable ana.int.interval --disable ana.int.enums --disable ana.int.def_exc --enable ana.context.widen --sets ana.base.privatization none

With that configuration, all programs should terminate. The question is why they don't and how to debug it.

The following only terminate with --enable exp.widen-context and are therefore likely recursive:

• coreutils/sort_comb.c
• single-thread/458.sjeng_comb.c
• single-thread/482.sphinx_livepretend_comb.c
• single-thread/duff-0.5_comb.c
• single-thread/maradns-1.4.06_comb.c

[michael-schwarz]

Still the case also with current Goblint.

[michael-schwarz]

@SchiJoha would maybe be interesting to find out if your strategies from the new PR can enforce termination here?