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sav08:collecting_semantics [2008/05/07 08:10] vkuncak |
sav08:collecting_semantics [2008/05/07 23:25] giuliano |
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| Program points are CFG nodes. Statements are labels on CFG edges. | Program points are CFG nodes. Statements are labels on CFG edges. | ||
| - | We look at a particular way of representing and computing sets of reachable, splitting states by program counter (control-flow graph node): **collecting semantics**. | + | We look at a particular way of representing and computing sets of reachable states, splitting states by program counter (control-flow graph node): **collecting semantics**. |
| $PS$ - states describing values of program variables (not including program counter). | $PS$ - states describing values of program variables (not including program counter). | ||
| Line 53: | Line 53: | ||
| } | } | ||
| </code> | </code> | ||
| + | After the assignment of $x$ to 2, the set of reachable states $C$ is $C = \{ (x,2), (i,20), (y,t) \}$ | ||