package codex

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package codex
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Module Fixpoint_graph.MakeSource

Parameters

module G : Graph

Signature

Sourcemodule ControlLocation : sig ... end

Control locations are also vertices in the graph. We provide to_int that uniquely identifies each node, as they will be used as keys in PatriciaTree.

include Fixpoint_wto.Graph with module ControlLocation := ControlLocation and type transition = G.transition
Sourcetype transition = G.transition
Sourceval preds_with_transition : ControlLocation.t -> (ControlLocation.t * transition) list

The list of successors from each node.

make init succs traverses the exiting graph to creates a new graph suitable for wto iteration. It returns a triple input_node,first_node,count where

  • first_node corresponds to init in the original graph;
  • input_node is a (pseudo-)node before first_node, which should not be part of the fixpoint computation, as it is used to hold the initial value for the fixpoint graph
  • count is the number of nodes in the graph.