[klee-dev] klee/runtime/POSIX/fd.c:40: memory error: out of bound pointer

[Nourah mmm]

Hi,

After running KLEE on Stencil Benchmark( within Parboil benchmarks). I
encountered this error:
---
klee --libc=uclibc --posix-runtime all.bc 128 128 32 100
'/home/parboil/datasets/stencil/small/input/128x128x32.bin'
KLEE: NOTE: Using klee-uclibc :
/home/klee/Release+Asserts/lib/klee-uclibc.bca
KLEE: NOTE: Using model:
/home/klee/Release+Asserts/lib/libkleeRuntimePOSIX.bca
KLEE: output directory is "/home/klee/examples/stencil/klee-out-36"
Using STP solver backend
KLEE: WARNING: undefined reference to function: klee_posix_prefer_cex
KLEE: WARNING ONCE: calling external: syscall(16, 0, 21505, 36697536)
KLEE: WARNING ONCE: calling __user_main with extra arguments.
KLEE: WARNING ONCE: calling external: printf(31963744)

CPU-based 7 points stencil codes
Original version by Li-Wen Chang  and I-Jui Sung<
sun...@illinois.edu>
This version maintained by Chris Rodrigues  ***
KLEE: WARNING ONCE: calling external: gettimeofday(30721744, 0)
KLEE: ERROR: /home/klee/runtime/POSIX/fd.c:40: memory error: out of bound
pointer
KLEE: NOTE: now ignoring this error at this location

KLEE: done: total instructions = 8411
KLEE: done: completed paths = 1
KLEE: done: generated tests = 1
-
Note that I'm I'm using LLVM 3.4.2.

The error pointing on the following line in fd.c:
  char c = pathname[0];

Is this consider as a bug in KLEE?

Best regards,
Nourah
___
klee-dev mailing list
klee-dev@imperial.ac.uk
https://mailman.ic.ac.uk/mailman/listinfo/klee-dev

[klee-dev] failed external call: fgets

[Nourah mmm]

Hi,

I try to run KLEE on cutcp benchmark from (Parboil Benchmarks
). The benchmark
consists from the following program: main.c  parboil.c readatom.c cutcpu.c
excl.c output.c

First I compile it with the following command:
myclang -I /home/klee/klee_src/include -emit-llvm -c -g main.c  parboil.c
readatom.c cutcpu.c excl.c output.c

Then, I run KLEE with this command:
myklee --posix-runtime --libc=uclibc  --link-llvm-lib=parboil.bc
--link-llvm-lib=cutcpu.bc --link-llvm-lib=excl.bc --link-llvm-lib=output.bc
--link-llvm-lib=readatom.bc ./main.bc -i
/home/naloboud/parboil/datasets/cutcp/small/input/watbox.sl40.pqr

However I get this error:
KLEE: NOTE: Using model:
/home//klee/Release+Asserts/lib/libkleeRuntimePOSIX.bca
KLEE: Linking in library: parboil.bc.

KLEE: Linking in library: cutcpu.bc.

KLEE: Linking in library: excl.bc.

KLEE: Linking in library: output.bc.

KLEE: Linking in library: readatom.bc.

KLEE: output directory is "/home//klee/examples/cutcap/./klee-out-10"
Using STP solver backend
KLEE: WARNING: undefined reference to function: __isoc99_sscanf
KLEE: WARNING: undefined reference to function: ceilf
KLEE: WARNING: undefined reference to function: fabs
KLEE: WARNING: undefined reference to function: feof
KLEE: WARNING: undefined reference to function: fgets
KLEE: WARNING: undefined reference to function: floorf
KLEE: WARNING: undefined reference to function: fmaxf
KLEE: WARNING: undefined reference to function: fminf
KLEE: WARNING: undefined reference to function: klee_posix_prefer_cex
KLEE: WARNING: undefined reference to function: sprintf
KLEE: WARNING: undefined reference to function: sqrtf
KLEE: WARNING ONCE: calling external: syscall(16, 0, 21505, 53351024)
KLEE: WARNING ONCE: calling __user_main with extra arguments.
KLEE: WARNING ONCE: calling external: gettimeofday(53752832, 0)
KLEE: WARNING ONCE: calling external: fgets(53760304, 96, 53770848)
KLEE: ERROR: /home//klee/examples/cutcap/readatom.c:44: failed external
call: fgets
KLEE: NOTE: now ignoring this error at this location

KLEE: done: total instructions = 12343
KLEE: done: completed paths = 1
KLEE: done: generated tests = 1


Could you please help me with that?
Thanks
Nourah
___
klee-dev mailing list
klee-dev@imperial.ac.uk
https://mailman.ic.ac.uk/mailman/listinfo/klee-dev