Memory composition support #7
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sergeypospelov
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Mar 6, 2023
|
I am not sure about fun <RegionId : URegionId, Key, Sort : USort> memcpy(
fromKey: Key,
toKey: Key,
fromRegion: UMemoryRegion<RegionId, Key, Sort>
) |
- RegionId made generic - No instantiator constructors - Composer is less than 70 lines now - No unclear heap interfaces extensions - Memcpy is entirely implemented
sergeypospelov
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Mar 15, 2023
CaelmBleidd
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Mar 16, 2023
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petrukhinandrew
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Apr 4, 2025
* update type argument rendering logic * fix mockMvc1 field name, when mockMvc not present * add JcSpringImportManager * remove redundant cp argument from annotations * JcDeadCodeTransformer rework * update jacodb version * fix lint * remove redundant check * remove redundant super calls
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* update type argument rendering logic * fix mockMvc1 field name, when mockMvc not present * add JcSpringImportManager * remove redundant cp argument from annotations * JcDeadCodeTransformer rework * update jacodb version * fix lint * remove redundant check * remove redundant super calls
Saloed
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Jun 2, 2025
* Add support for memory composition * Review fixes * Composition refactoring and array copying implementation - RegionId made generic - No instantiator constructors - Composer is less than 70 lines now - No unclear heap interfaces extensions - Memcpy is entirely implemented * Refactoring * Review fixes --------- Co-authored-by: Dmitry Mordvinov <[email protected]>
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Jun 19, 2025
* update type argument rendering logic * fix mockMvc1 field name, when mockMvc not present * add JcSpringImportManager * remove redundant cp argument from annotations * JcDeadCodeTransformer rework * update jacodb version * fix lint * remove redundant check * remove redundant super calls
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Added support for memory composition.
Minor changes:
UContextwith values fromKContextUConcreteHeapRefRegionIdgeneric parameter in many placesUMemoryRegionsfile into three:MemoryRegions,UMemoryUpdates, andUpdateNodes, containing corresponding classes and their inheritors.isEmptyreturning true for theUniverseregionUFlatUpdatesUnsolved problems:
keyMapperis still an uncomposable object, that leads to a problem with recalculation of lower bounds in lambda closure inside theURangedUpdateNodeOpen questions:
memcpyfunction contain a memory region? Can we have a heap without regions?writeArrayLength? Create an abstract class? Or an external interface? Or implement a default behaviour throwing an errorAdded tests:
org.usvm.MapCompositionTestfor map operations in different classesorg.usvm.MemoryRegionTests#testMultipleWriteTheSameUpdateNodefor key deduplicationorg.usvm.CompositionTestfor composition as an operation