SeaM implementation #473
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SeaM implementation #473
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(to sqaush): use rewriter to apply pattern recursively feat(ExprVisitor): set selected kids to visit instead of always visit all (tsquash): use more restrained vistor to only visit first arg of store (tsquash): rename, cleanup use simple custom rewriter for array store; revert m_selectedKids
in house version is gud feat(mem-repr): iterative rewriter for ITE expr
(intrim): cached visit; stateless rules (intrim): OOP design
(to-squash): handle ites as well feat(to-squash): bvadd rules finalized
draft(nmr): present stack ptr expr with based obj type draft(nmr): low precision but sound addr filtering draft(hybrid): push down bvadd; better addrs range draft(hybrid): AddrRange data struc to keep track of isTop
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Implementation for MSc thesis SeaM memory representation:
lib/seahorn/BvOpSem2RawMemMgr.hh, addm_spObjName:="sea.obj"to represent pointer objects base in the form ofsea.obj.N; during translation of allocation, use functionmkBasedPtr(base, offset)to create object bases --base:=m_spObjName,offsetis the end address ofStaticOpSemAllocator::salloc(Expr bytes, uint32_t align = 0);memcpyandmemset: defined new intermediateExprnode typesMEMSET_WORDS,MEMCPY_WORDSininclude/seahorn/Expr/ExprOpMem.hhinclude/seahorn/Expr/ExprAddrRangeMap.hhandlib/seahorn/Smt/ExprAddrRangeMap.cc; unit tests inunits/units_arm.cppExprnode typeSTORE_MAPand accompanying operations ininclude/seahorn/Expr/ExprOpArray.hh; added cons list like node typeCONSininclude/seahorn/Expr/ExprOpMisc.hh; unit tests inunits/units_store_map.cppinclude/seahorn/Expr/ExprRewriter.hhandlib/seahorn/Smt/ExprRewriter.cc; rewrite rules defined ininclude/seahorn/Expr/ExprRewriteRule.hhreplaces draft PR Hybrid memory representation #400