limited widening to 10 steps

Reviewed By: mbouaziz Differential Revision: D9946335 fbshipit-source-id: d5f561f48
6 years ago · b838b7bc46
parent 590f1faac5
commit b838b7bc46
1 changed files with 3 additions and 1 deletions
--- a/infer/src/checkers/accessTree.ml
+++ b/infer/src/checkers/accessTree.ml
@ -384,8 +384,10 @@ module Make (TraceDomain : AbstractDomain.WithBottom) (Config : Config) = struct
  (* try for a bit to reach a fixed point before widening aggressively *)
  let joins_before_widen = 3

+  let max_iter = 10
+
  let widen ~prev ~next ~num_iters =
-    if phys_equal prev next then prev
+    if phys_equal prev next || num_iters >= max_iter then prev
    else if Int.( <= ) num_iters joins_before_widen then join prev next
    else
      let trace_widen prev next = TraceDomain.widen ~prev ~next ~num_iters in