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  • #1392

Imprecision of 'Defs' when querying precise location

ID0001079: This issue was created automatically from Mantis Issue 1079. Further discussion may take place here.


Id Project Category View Due Date Updated
ID0001079 Frama-C Plug-in > scope public 2012-02-03 2014-02-12
Reporter yakobowski Assigned To yakobowski Resolution fixed
Priority normal Severity feature Reproducibility always
Platform - OS - OS Version -
Product Version Frama-C Nitrogen-20111001 Target Version - Fixed in Version Frama-C Oxygen-20120901

Description :


typedef struct { int a; int b; } ts;

ts t[10];

void init() { t[1].a = 1; t[1].b = 2; }

unsigned int main () { init(); return t[1].a; }

Requiring the instructions that define t[1].a in main yields both lines of function init, which is a bit imprecise. Since slicing main on its return value removes the line 't[1].b = 2', the pdg is probably precise enough. Thus the imprecision lies somewhere in Scope.

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