Age | Commit message (Collapse) | Author |
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constraints
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ArrayHashTime
* fix binding order for assignments when KLEE_ARRAY_DEBUG enabled
* always write ArrayHashTime column to run.stats, assign -1 when KLEE_ARRAY_DEBUG disabled
* remove unused NumObjects column from run.stats
* remove NumObjects panel from Grafana
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introduced during the optimization step
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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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This uses the `ref<>`-based memory handling of MemoryObjects.
This makes it explicit that references are held in:
- ExecutionState::symbolics
- ObjectState
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Remove additional reference counting as part of UpdateNodeList and
UpdateNode. Simplifies code.
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* Replace c header with c++ header
* remove unneeded header file
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Using KLEE's `ref<>` shared ptr requires the referenced object
to contain a reference counter to be added and initialised to 0
as part of the constructor.
To support better reuse of the `ref<>` ptr add a `ReferenceCounter`
struct.
Just adding this struct to a new class/struct as member enables
reference counting with `ref<>` - no additional counter management
needed.
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reference assigned.
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TR1 implementation got replaced by the std::* equivalents with C++11.
Start to use the standard versions instead of the old ones.
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* Port changes from .Dockerfile to this
* install emacs-nox and vim-nox instead of pulling all X dependencies
* Clean apt cache
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Building older LLVM/libcxx versions under Ubuntu 18.04 requirer patches
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LLVM changed from svn to github. Use the github mirror to have faster build times.
Patches were updated to follow the new structure.
Patches also support building underr Ubuntu 18.04
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Build dependencies for different components were tied to a specific Ubuntu version (16.04).
Although, they are the same for newer versions as well.
By renaming `p-component-linux-ubuntu-16.04.inc` to `p-component-linux-ubuntu.inc`, the script can be used for newer Ubuntu versions as well.
Do some minor cleaning up.
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Statistics encoded in `run.istats` were limited to a maximum number of 13 due to encoding in a `uint64_t` variable.
This approach has multiple limitations:
- a maximum number of 13 statistics were allowed
- a subtle bug can be triggered if many more statistics are added - independent of the selected statistics for `run.istats`
Depending on the linking order, statistics will get a different ID. Previously, the ID was used to shift a `1` to its position marking the statistic as being used.
This will lead to undefined behaviour if more than 63 statistics are used.
Using an llvm::SmallBitVector instead fixes both problems.
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Tracking function locations separately correctly without prefixing
it with a directory.
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