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* rename columns for consistency
* reorder columns and group by "categories"
* add missing documentation
* fix existing documentation
* show MaxMem as float
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Only absolute times were displayed, and were marked as %.
Fixes CexCacheTime, ForkTime and ResolveTime columns.
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* fill missing columns in rows with None
* fill previous rows with None if new column encountered
* error for --to-csv when more than one input directory given
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outputting wrong data.
When KLEE crashes, it produces an empty info file, so it is not enough to check for the existence of an info file.
Previously, table columns would mismatch and return data labeled with the wrong directory names.
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Instructions
Last `Instructions` is not a good identifier to retrieve the correct row.
For the default setup, KLEE will generate two entries with the same last instruction.
One before clean-up and one after clean-up (i.e. if states are terminated on halt).
Using `rowid` will select the last line.
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The number and order of statistics in klee-stats is hard coded.
Moreover, adding new statistics to KLEE lead to crashes.
Rewriting that part of the script generalises and streamlines the process.
List of changes:
* Extend legend: this is used for known columns to provide shorter names
* simplify sqlite handling and make it more robust and reading of data
* select columns based on internal KLEE names
* streamline addition of artificial columns and make it robust
* handle the case if different runs should be compared but not all have the same statistics
* fix calculation of summary row:
- avg of column if column is showing a relative value or avg value
- max of column if column is showing a max value
- sum of column entries, else
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Providing a list of directories might sometimes not contain the stats file.
Check its existence before trying to access it.
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Added units for some of the data and
modified klee-stats source code to provide solver time
as a fraction of walltime along with fork, resolve
and cexcache time.
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The last modification time of the run.stats database was being used as
the starting time of klee. This was causing Grafana to show graphs
incorrectly.
Instead we now read the start time from the info file.
Co-Authored-By: Kenny Macheka <knm17@ic.ac.uk>
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It starts a simple web server that acts as a simple JSON datasource for grafana
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Improves querying of the .stats file, reduces its size, speeds up reads and
writes and has better defined fail behaviour.
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Signed-off-by: Domenico Fabio Marino <nospamdomi@hotmail.it>
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configuration, TravisCI scripts and Dockerfile build appropriately.
There are a bunch of clean ups this enables but this commit doesn't
attempt them. We can do that in future commits.
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This was a proposal from #500.
@andreamattavelli pointed out that the lit tests are really
system tests rather than integration tests so this commit fixes
the inappropriate naming that I chose.
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This is based off intial work by @jirislaby in #481. However it
has been substantially modified.
Notably it includes a separate build sytem to build the runtimes which
is inspired by the old build system. The reason for doing this is
because CMake is not well suited for building the runtime:
* CMake is configured to use the host compiler, not the bitcode
compiler. These are not the same thing.
* Building the runtime using `add_custom_command()` is flawed
because we can't automatically get transitive depencies (i.e.
header file dependencies) unless the CMake generator is makefiles.
(See `IMPLICIT_DEPENDS` of `add_custom_command()` in CMake).
So for now we have a very simple build system for building the runtimes.
In the future we can replace this with something more sophisticated if
we need it.
Support for all features of the old build system are implemented apart
from recording the git revision and showing it in the output of
`klee --help`.
Another notable change is the CMake build system works much better with
LLVM installs which don't ship with testing tools. The build system
will download the sources for `FileCheck` and `not` tools if the
corresponding binaries aren't available and will build them. However
`lit` (availabe via `pip install lit`) and GTest must already be
installed.
Apart from better support for testing a significant advantage of the
new CMake build system compared to the existing "Autoconf/Makefile"
build system is that it is **not** coupled to LLVM's build system
(unlike the existing build system). This means that LLVM's
autoconf/Makefiles don't need to be installed somewhere on the system.
Currently all tests pass.
Support has been implemented in TravisCI and the Dockerfile for
building with CMake.
The existing "Autoconf/Makefile" build system has been left intact
and so both build systems can coexist for a short while. We should
remove the old build system as soon as possible though because it
creates an unnecessary maintance burden.
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