C implicit Team1 (E-ACSL) Benchmark2
This benchmark is located in crv.liflab.ca@/home/e-acsl/crv16_benchmarks/c-implicit-track/realloc-init
The Trace Part
E-ACSL has no notion of trace
The Property Part
The benchmark relates to memory safety and more specifically to reading from a heap-allocated memory block that has not been fully initialised by a previous write.
This benchmark explores the following scenario:
- A block of memory is allocated on a program's heap via a call to malloc.
- The first four bytes of the allocated block are initialized.
- The same memory block is then partially de-allocated and then re-allocated again (via realloc). This renders the last byte of the block uninitialised.
- The same memory block is then used in a print statement that potentially reads from a properly allocated location that has not been fully initialized.
The formal specification is given using ACSL
/*@ assert \initialized(p); */
where p is of pointer type.