Extract duplicate code into separate functions

src/cdomain/value/cdomains/intDomain0.ml

@@ -555,26 +555,30 @@ module IntervalArith (Ints_t : IntOps.IntOps) = struct
   let to_int (x1, x2) =
     if Ints_t.equal x1 x2 then Some x1 else None
 
+  let find_thresholds lower_or_upper =
+    let ts = if get_interval_threshold_widening_constants () = "comparisons" then lower_or_upper else WideningThresholds.thresholds in
+    ResettableLazy.force ts
+
   let upper_threshold u max_ik =
-    let ts = if get_interval_threshold_widening_constants () = "comparisons" then WideningThresholds.upper_thresholds else WideningThresholds.thresholds in
+    let ts = find_thresholds WideningThresholds.upper_thresholds in
     let u = Ints_t.to_bigint u in
     let max_ik' = Ints_t.to_bigint max_ik in
-    let t = WideningThresholds.Thresholds.find_first_opt (fun x -> Z.compare u x <= 0 && Z.compare x max_ik' <= 0) (ResettableLazy.force ts) in
+    let t = WideningThresholds.Thresholds.find_first_opt (fun x -> Z.compare u x <= 0 && Z.compare x max_ik' <= 0) ts in
     BatOption.map_default Ints_t.of_bigint max_ik t
   let lower_threshold l min_ik =
-    let ts = if get_interval_threshold_widening_constants () = "comparisons" then WideningThresholds.lower_thresholds else WideningThresholds.thresholds in
+    let ts = find_thresholds WideningThresholds.lower_thresholds in
     let l = Ints_t.to_bigint l in
     let min_ik' = Ints_t.to_bigint min_ik in
-    let t = WideningThresholds.Thresholds.find_last_opt (fun x -> Z.compare l x >= 0 && Z.compare x min_ik' >= 0) (ResettableLazy.force ts) in
+    let t = WideningThresholds.Thresholds.find_last_opt (fun x -> Z.compare l x >= 0 && Z.compare x min_ik' >= 0) ts in
     BatOption.map_default Ints_t.of_bigint min_ik t
-  let is_upper_threshold u =
-    let ts = if get_interval_threshold_widening_constants () = "comparisons" then WideningThresholds.upper_thresholds else WideningThresholds.thresholds in
-    let u = Ints_t.to_bigint u in
-    WideningThresholds.Thresholds.exists (Z.equal u) (ResettableLazy.force ts)
-  let is_lower_threshold l =
-    let ts = if get_interval_threshold_widening_constants () = "comparisons" then WideningThresholds.lower_thresholds else WideningThresholds.thresholds in
-    let l = Ints_t.to_bigint l in
-    WideningThresholds.Thresholds.exists (Z.equal l) (ResettableLazy.force ts)
+
+  let is_threshold t ts =
+    let ts = find_thresholds ts in
+    let t = Ints_t.to_bigint t in
+    WideningThresholds.Thresholds.exists (Z.equal t) ts
+
+  let is_upper_threshold u = is_threshold u WideningThresholds.upper_thresholds
+  let is_lower_threshold l = is_threshold l WideningThresholds.lower_thresholds
 end
 
 module IntInvariant =