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Decouple ExecutionState from TimingSolver
Instead of providing an execution state to the timing solver use a set of
constraints and an additional object for metadata.
Fixes:
* correct accounting of metadata to a specific state
* accounting of all solver invocations (e.g. solver-getRange was not
accounted)
* allows to invoke the solver without a state (avoids costly copying of
states/constraints)
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appropriate existing directories and a new directory Statistics; a few missing renames.
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tly in lib/Core
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Remove additional reference counting as part of UpdateNodeList and
UpdateNode. Simplifies code.
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- moves timer handling from Executor into support lib
- introduces TimerGroup, removes TimerInfo/WriteStatsTimer/UpdateReachableTimer/WriteIStatsTimer classes
- removes ExecutorTimers.cpp and ExecutorTimerInfo.h
- removes -max-instruction-time flag (see #1114)
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directory. This improves the organization of the code, and also makes it easier to reuse Expr outside KLEE.
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This should not change the behaviour of KLEE and mimics the old API.
- functions moved from util into time namespace
- uses time points and time spans instead of double
- CLI arguments now have the form "3h5min8us"
Changed command line parameters:
- batch-time (double to string)
- istats-write-interval (double to string)
- max-instruction-time (double to string)
- max-solver-time (double to string)
- max-time (double to string)
- min-query-time-to-log (double to string)
- seed-time (double to string)
- stats-write-interval (double to string)
- uncovered-update-interval (double to string)
- added: log-timed-out-queries (replaces negative max-solver-time)
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AddressSpace::checkPointerInObject() that is called in both the forward and the backward searches. This makes the code more modular and removes a large part of duplicated code and should also address the non-deterministic coverage in the resolve() function which affects Codecov reports.
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Deterministic allocation provides an internal allocator which
mmaps memory to a fixed static address.
This way, same allocation is assured across different KLEE runs
for the same application assuming a deterministic searcher.
In addition, this patch provides following options:
-allocate-determ: switch on/off deterministic allocation
-allocate-determ-size: adjust preallocated memory
-null-on-zero-malloc: returns null pointer in case a malloc
of size 0 was requested. According to standard, also a non-null pointer
can be returned (which happens with the default glibc malloc implementation)
-allocation-space: space between allocations can be adjusted. KLEE is not able
to detect out-of-bound accesses which are inside another but wrong object.
Due the implementation of typical allocators adjacent mallocs have space
in between for management purposes. This spaces helped KLEE to detect off-by-1/2 accesses.
For higher numbers, the allocation space has to be increased.
-allocate-determ-start-address: adjust deterministic start address. The addres
has to be page aligned. KLEE fails if it cannot acquire this address
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- Change Executor::evalConstant to return ConstantExpr.
git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@73337 91177308-0d34-0410-b5e6-96231b3b80d8
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64-bit addresses).
git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@73327 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@72860 91177308-0d34-0410-b5e6-96231b3b80d8
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- These should use cast<>, isa<>, or dyn_cast<> as appropriate (or better yet,
changed to use ref<ConstantExpr> when the type is known).
git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@72857 91177308-0d34-0410-b5e6-96231b3b80d8
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- Ref.h is now freestanding.
git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@72824 91177308-0d34-0410-b5e6-96231b3b80d8
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more standard reference counting wrapper.
- The only interesting changes here are in Ref.h, everything else is just
updating foo.method to use foo->method instead.
git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@72777 91177308-0d34-0410-b5e6-96231b3b80d8
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- Lots more tweaks, documentation, and web page content is needed,
but this should compile & work on OS X & Linux.
git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@72205 91177308-0d34-0410-b5e6-96231b3b80d8
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