diff --git a/infer/src/backend/interproc.ml b/infer/src/backend/interproc.ml
index e1a618744..b51360811 100644
--- a/infer/src/backend/interproc.ml
+++ b/infer/src/backend/interproc.ml
@@ -458,7 +458,7 @@ let check_assignement_guard node =
                 let desc = Errdesc.explain_condition_is_assignment l_node in
                 let exn = Exceptions.Condition_is_assignment (desc, __POS__) in
                 let pre_opt = State.get_normalized_pre (Abs.abstract_no_symop pname) in
-                Reporting.log_warning pname ~loc: (Some l_node) ~pre: pre_opt exn
+                Reporting.log_warning pname ~loc:l_node ?pre:pre_opt exn
               )
               else ()
           | _ ->
@@ -508,7 +508,7 @@ let forward_tabulate tenv wl =
      | None -> ());
     L.d_strln "SIL INSTR:";
     Cfg.Node.d_instrs ~sub_instrs: true (State.get_instr ()) curr_node; L.d_ln ();
-    Reporting.log_error ~pre: pre_opt curr_pname exn;
+    Reporting.log_error ?pre:pre_opt curr_pname exn;
     State.mark_instr_fail pre_opt exn;
     handled_some_exception := true in
 
@@ -1044,7 +1044,7 @@ let perform_analysis_phase tenv (pname : Procname.t) (pdesc : Cfg.Procdesc.t)
               Exceptions.Internal_error
                 (Localise.verbatim_desc "Leak_while_collecting_specs_after_footprint") in
             let pre_opt = State.get_normalized_pre (Abs.abstract_no_symop pname) in
-            Reporting.log_error pname ~pre: pre_opt exn;
+            Reporting.log_error pname ?pre:pre_opt exn;
             [] (* retuning no specs *) in
       specs, Specs.FOOTPRINT in
     let wl = path_set_create_worklist pdesc in
@@ -1204,7 +1204,7 @@ let report_runtime_exceptions tenv pdesc summary =
         pp_to_string (Prop.pp_prop pe_text) (Specs.Jprop.to_prop pre) in
       let exn_desc = Localise.java_unchecked_exn_desc pname runtime_exception pre_str in
       let exn = Exceptions.Java_runtime_exception (runtime_exception, pre_str, exn_desc) in
-      Reporting.log_error pname ~pre: (Some (Specs.Jprop.to_prop pre)) exn in
+      Reporting.log_error pname ~pre:(Specs.Jprop.to_prop pre) exn in
   IList.iter report exn_preconditions
 
 
@@ -1217,7 +1217,7 @@ let report_custom_errors summary =
       let loc = summary.Specs.attributes.ProcAttributes.loc in
       let err_desc = Localise.desc_custom_error loc in
       let exn = Exceptions.Custom_error (custom_error, err_desc) in
-      Reporting.log_error pname ~pre: (Some (Specs.Jprop.to_prop pre)) exn in
+      Reporting.log_error pname ~pre:(Specs.Jprop.to_prop pre) exn in
   IList.iter report error_preconditions
 
 module SpecMap = Map.Make (struct
diff --git a/infer/src/backend/rearrange.ml b/infer/src/backend/rearrange.ml
index 19fb0ee1c..c1efa31e0 100644
--- a/infer/src/backend/rearrange.ml
+++ b/infer/src/backend/rearrange.ml
@@ -63,7 +63,7 @@ let check_bad_index pname p len index loc =
           Exceptions.Array_out_of_bounds_l1
             (Errdesc.explain_array_access deref_str p loc, __POS__) in
         let pre_opt = State.get_normalized_pre (Abs.abstract_no_symop pname) in
-        Reporting.log_warning pname ~pre: pre_opt exn
+        Reporting.log_warning pname ?pre:pre_opt exn
       else if len_is_constant then
         let deref_str = Localise.deref_str_array_bound len_const_opt index_const_opt in
         let desc = Errdesc.explain_array_access deref_str p loc in
@@ -71,7 +71,7 @@ let check_bad_index pname p len index loc =
           then Exceptions.Array_out_of_bounds_l2 (desc, __POS__)
           else Exceptions.Array_out_of_bounds_l3 (desc, __POS__) in
         let pre_opt = State.get_normalized_pre (Abs.abstract_no_symop pname) in
-        Reporting.log_warning pname ~pre: pre_opt exn
+        Reporting.log_warning pname ?pre:pre_opt exn
     end
 
 (** Perform bounds checking *)
@@ -1058,7 +1058,7 @@ let check_type_size pname prop texp off typ_from_instr =
           Exceptions.Pointer_size_mismatch (
             Errdesc.explain_dereference deref_str prop loc, __POS__) in
         let pre_opt = State.get_normalized_pre (Abs.abstract_no_symop pname) in
-        Reporting.log_warning pname ~pre: pre_opt exn
+        Reporting.log_warning pname ?pre:pre_opt exn
       end
   | None ->
       L.d_str "texp: "; Sil.d_texp_full texp; L.d_ln ()
diff --git a/infer/src/backend/reporting.ml b/infer/src/backend/reporting.ml
index c93b8c101..a62444a76 100644
--- a/infer/src/backend/reporting.ml
+++ b/infer/src/backend/reporting.ml
@@ -12,11 +12,11 @@ open! Utils
 module L = Logging
 
 type log_t =
-  ?loc: Location.t option ->
-  ?node_id: (int * int) option ->
-  ?session: int option ->
-  ?ltr: Errlog.loc_trace option ->
-  ?pre: Prop.normal Prop.t option ->
+  ?loc: Location.t ->
+  ?node_id: (int * int) ->
+  ?session: int ->
+  ?ltr: Errlog.loc_trace ->
+  ?pre: Prop.normal Prop.t ->
   exn ->
   unit
 
@@ -24,15 +24,7 @@ type log_issue = Procname.t -> log_t
 
 type log_issue_from_errlog = Errlog.t -> log_t
 
-let log_issue_from_errlog
-    err_kind
-    err_log
-    ?(loc = None)
-    ?(node_id = None)
-    ?(session = None)
-    ?(ltr = None)
-    ?(pre = None)
-    exn =
+let log_issue_from_errlog err_kind err_log ?loc ?node_id ?session ?ltr ?pre exn =
   let loc = match loc with
     | None -> State.get_loc ()
     | Some loc -> loc in
@@ -56,11 +48,11 @@ let log_issue_from_errlog
 let log_issue
     err_kind
     proc_name
-    ?(loc = None)
-    ?(node_id = None)
-    ?(session = None)
-    ?(ltr = None)
-    ?(pre = None)
+    ?loc
+    ?node_id
+    ?session
+    ?ltr
+    ?pre
     exn =
   let should_suppress_warnings summary =
     !Config.curr_language = Config.Java &&
@@ -72,8 +64,7 @@ let log_issue
   | Some summary when should_suppress_warnings summary -> ()
   | Some summary ->
       let err_log = summary.Specs.attributes.ProcAttributes.err_log in
-      log_issue_from_errlog err_kind err_log ~loc:loc ~node_id:node_id
-        ~session:session ~ltr:ltr ~pre:pre exn
+      log_issue_from_errlog err_kind err_log ?loc ?node_id ?session ?ltr ?pre exn
   | None -> ()
 
 let log_error = log_issue Exceptions.Kerror
diff --git a/infer/src/backend/reporting.mli b/infer/src/backend/reporting.mli
index 4559c5307..76247a031 100644
--- a/infer/src/backend/reporting.mli
+++ b/infer/src/backend/reporting.mli
@@ -12,11 +12,11 @@ open! Utils
 (** Type of functions to report issues to the error_log in a spec. *)
 
 type log_t =
-  ?loc: Location.t option ->
-  ?node_id: (int * int) option ->
-  ?session: int option ->
-  ?ltr: Errlog.loc_trace option ->
-  ?pre: Prop.normal Prop.t option ->
+  ?loc: Location.t ->
+  ?node_id: (int * int) ->
+  ?session: int ->
+  ?ltr: Errlog.loc_trace ->
+  ?pre: Prop.normal Prop.t ->
   exn ->
   unit
 
diff --git a/infer/src/backend/state.ml b/infer/src/backend/state.ml
index 51fa437bc..8607d3024 100644
--- a/infer/src/backend/state.ml
+++ b/infer/src/backend/state.ml
@@ -309,11 +309,11 @@ let mark_instr_fail pre_opt exn =
 
 type log_issue =
   Procname.t ->
-  ?loc: Location.t option ->
-  ?node_id: (int * int) option ->
-  ?session: int option ->
-  ?ltr: Errlog.loc_trace option ->
-  ?pre: Prop.normal Prop.t option ->
+  ?loc: Location.t ->
+  ?node_id: (int * int) ->
+  ?session: int ->
+  ?ltr: Errlog.loc_trace ->
+  ?pre: Prop.normal Prop.t ->
   exn ->
   unit
 
@@ -326,7 +326,7 @@ let process_execution_failures (log_issue : log_issue) pname =
         let desc' = Localise.verbatim_desc ("exception: " ^ Localise.to_string ex_name) in
         let exn' = Exceptions.Analysis_stops (desc', ml_loc_opt) in
         log_issue
-          pname ~loc: (Some loc) ~node_id: (Some key) ~ltr: (Some loc_trace) ~pre: pre_opt exn'
+          pname ~loc ~node_id:key ~ltr:loc_trace ?pre:pre_opt exn'
     | _ -> () in
   NodeHash.iter do_failure !gs.failure_map
 
diff --git a/infer/src/backend/state.mli b/infer/src/backend/state.mli
index d8fcd7db2..bdd582afb 100644
--- a/infer/src/backend/state.mli
+++ b/infer/src/backend/state.mli
@@ -86,11 +86,11 @@ val mk_find_duplicate_nodes: Cfg.Procdesc.t -> (Cfg.Node.t -> Cfg.NodeSet.t)
 
 type log_issue =
   Procname.t ->
-  ?loc: Location.t option ->
-  ?node_id: (int * int) option ->
-  ?session: int option ->
-  ?ltr: Errlog.loc_trace option ->
-  ?pre: Prop.normal Prop.t option ->
+  ?loc: Location.t ->
+  ?node_id: (int * int) ->
+  ?session: int ->
+  ?ltr: Errlog.loc_trace ->
+  ?pre: Prop.normal Prop.t ->
   exn ->
   unit
 
diff --git a/infer/src/backend/symExec.ml b/infer/src/backend/symExec.ml
index 1bbe9f6e1..15b428749 100644
--- a/infer/src/backend/symExec.ml
+++ b/infer/src/backend/symExec.ml
@@ -114,7 +114,7 @@ let rec apply_offlist
             let err_desc = Errdesc.explain_memory_access deref_str p (State.get_loc ()) in
             let exn = (Exceptions.Uninitialized_value (err_desc, __POS__)) in
             let pre_opt = State.get_normalized_pre (Abs.abstract_no_symop pname) in
-            Reporting.log_warning pname ~pre: pre_opt exn;
+            Reporting.log_warning pname ?pre:pre_opt exn;
             Sil.update_inst inst_curr inst
         | Sil.Ilookup -> (* a lookup does not change an inst unless it is inst_initial *)
             lookup_inst := Some inst_curr;
@@ -380,7 +380,7 @@ let check_inherently_dangerous_function caller_pname callee_pname =
       Exceptions.Inherently_dangerous_function
         (Localise.desc_inherently_dangerous_function callee_pname) in
     let pre_opt = State.get_normalized_pre (Abs.abstract_no_symop caller_pname) in
-    Reporting.log_warning caller_pname ~pre: pre_opt exn
+    Reporting.log_warning caller_pname ?pre:pre_opt exn
 
 let proc_is_defined proc_name =
   match AttributesTable.load_attributes proc_name with
@@ -423,7 +423,7 @@ let check_arith_norm_exp pname exp prop =
       let desc = Errdesc.explain_divide_by_zero div (State.get_node ()) (State.get_loc ()) in
       let exn = Exceptions.Divide_by_zero (desc, __POS__) in
       let pre_opt = State.get_normalized_pre (Abs.abstract_no_symop pname) in
-      Reporting.log_warning pname ~pre: pre_opt exn;
+      Reporting.log_warning pname ?pre:pre_opt exn;
       Prop.exp_normalize_prop prop exp, prop'
   | Some (Attribute.UminusUnsigned (e, typ)), prop' ->
       let desc =
@@ -431,7 +431,7 @@ let check_arith_norm_exp pname exp prop =
           e typ (State.get_node ()) (State.get_loc ()) in
       let exn = Exceptions.Unary_minus_applied_to_unsigned_expression (desc, __POS__) in
       let pre_opt = State.get_normalized_pre (Abs.abstract_no_symop pname) in
-      Reporting.log_warning pname ~pre: pre_opt exn;
+      Reporting.log_warning pname ?pre:pre_opt exn;
       Prop.exp_normalize_prop prop exp, prop'
   | None, prop' -> Prop.exp_normalize_prop prop exp, prop'
 
@@ -469,7 +469,7 @@ let check_already_dereferenced pname cond prop =
       let exn =
         (Exceptions.Null_test_after_dereference (desc, __POS__)) in
       let pre_opt = State.get_normalized_pre (Abs.abstract_no_symop pname) in
-      Reporting.log_warning pname ~pre: pre_opt exn
+      Reporting.log_warning pname ?pre:pre_opt exn
   | None -> ()
 
 (** Check whether symbolic execution de-allocated a stack variable or a constant string,
@@ -1064,7 +1064,7 @@ let rec sym_exec tenv current_pdesc _instr (prop_: Prop.normal Prop.t) path
             let exn =
               Exceptions.Condition_always_true_false (desc, not (IntLit.iszero i), __POS__) in
             let pre_opt = State.get_normalized_pre (Abs.abstract_no_symop current_pname) in
-            Reporting.log_warning current_pname ~pre: pre_opt exn
+            Reporting.log_warning current_pname ?pre:pre_opt exn
         | _ -> () in
       if not Config.report_runtime_exceptions then
         check_already_dereferenced current_pname cond prop__;
@@ -1583,7 +1583,7 @@ and proc_call summary {Builtin.pdesc; tenv; prop_= pre; path; ret_ids; args= act
       let err_desc = Localise.desc_return_value_ignored callee_pname loc in
       let exn = (Exceptions.Return_value_ignored (err_desc, __POS__)) in
       let pre_opt = State.get_normalized_pre (Abs.abstract_no_symop caller_pname) in
-      Reporting.log_warning caller_pname ~pre: pre_opt exn in
+      Reporting.log_warning caller_pname ?pre:pre_opt exn in
   check_inherently_dangerous_function caller_pname callee_pname;
   begin
     let formal_types = IList.map (fun (_, typ) -> typ) (Specs.get_formals summary) in
diff --git a/infer/src/backend/tabulation.ml b/infer/src/backend/tabulation.ml
index 2037457ce..888e51399 100644
--- a/infer/src/backend/tabulation.ml
+++ b/infer/src/backend/tabulation.ml
@@ -373,7 +373,7 @@ let check_path_errors_in_post caller_pname post post_path =
           State.set_path new_path path_pos_opt;
           let exn = Exceptions.Divide_by_zero (desc, __POS__) in
           let pre_opt = State.get_normalized_pre (fun _ p -> p) (* Abs.abstract_no_symop *) in
-          Reporting.log_warning caller_pname ~pre: pre_opt exn
+          Reporting.log_warning caller_pname ?pre:pre_opt exn
     | _ -> () in
   IList.iter check_attr (Attribute.get_all post)
 
diff --git a/infer/src/checkers/annotationReachability.ml b/infer/src/checkers/annotationReachability.ml
index d23b076d5..3547fd36d 100644
--- a/infer/src/checkers/annotationReachability.ml
+++ b/infer/src/checkers/annotationReachability.ml
@@ -216,7 +216,7 @@ let report_allocation_stack
       ("new "^constr_str) in
   let exn =
     Exceptions.Checkers (allocates_memory, Localise.verbatim_desc description) in
-  Reporting.log_error pname ~loc: (Some fst_call_loc) ~ltr: (Some final_trace) exn
+  Reporting.log_error pname ~loc:fst_call_loc ~ltr:final_trace exn
 
 let report_annotation_stack src_annot snk_annot src_pname loc trace stack_str snk_pname call_loc =
   if snk_annot = dummy_constructor_annot
@@ -239,7 +239,7 @@ let report_annotation_stack src_annot snk_annot src_pname loc trace stack_str sn
       else annotation_reachability_error in
     let exn =
       Exceptions.Checkers (msg, Localise.verbatim_desc description) in
-    Reporting.log_error src_pname ~loc: (Some loc) ~ltr: (Some final_trace) exn
+    Reporting.log_error src_pname ~loc ~ltr:final_trace exn
 
 let report_call_stack end_of_stack lookup_next_calls report call_site calls =
   (* TODO: stop using this; we can use the call site instead *)
@@ -394,7 +394,7 @@ module Interprocedural = struct
         let exn =
           Exceptions.Checkers
             (expensive_overrides_unexpensive, Localise.verbatim_desc description) in
-        Reporting.log_error proc_name ~loc: (Some loc) ~ltr: None exn in
+        Reporting.log_error proc_name ~loc exn in
 
     if expensive then
       PatternMatch.proc_iter_overridden_methods
diff --git a/infer/src/checkers/checkers.ml b/infer/src/checkers/checkers.ml
index f27fa676a..f5b87cd9f 100644
--- a/infer/src/checkers/checkers.ml
+++ b/infer/src/checkers/checkers.ml
@@ -154,7 +154,7 @@ module ST = struct
               (Procname.to_string proc_name);
             L.stdout "%s@." description
           end;
-        Reporting.log_error proc_name ~loc: (Some loc) ~ltr: (Some trace) exn
+        Reporting.log_error proc_name ~loc ~ltr:trace exn
       end
 end
 
diff --git a/infer/src/checkers/fragmentRetainsViewChecker.ml b/infer/src/checkers/fragmentRetainsViewChecker.ml
index 47893c6c5..8924554dc 100644
--- a/infer/src/checkers/fragmentRetainsViewChecker.ml
+++ b/infer/src/checkers/fragmentRetainsViewChecker.ml
@@ -18,7 +18,7 @@ let report_error fragment_typ fld fld_typ pname pdesc =
   let description = Localise.desc_fragment_retains_view fragment_typ fld fld_typ pname in
   let exn =  Exceptions.Checkers (retained_view, description) in
   let loc = Cfg.Procdesc.get_loc pdesc in
-  Reporting.log_error pname ~loc:(Some loc) exn
+  Reporting.log_error pname ~loc exn
 
 let callback_fragment_retains_view_java
     pname_java { Callbacks.proc_desc; tenv } =
diff --git a/infer/src/clang/cFrontend_errors.ml b/infer/src/clang/cFrontend_errors.ml
index 3a490cc8b..44d00e7d1 100644
--- a/infer/src/clang/cFrontend_errors.ml
+++ b/infer/src/clang/cFrontend_errors.ml
@@ -103,8 +103,8 @@ let log_frontend_issue cfg cg method_decl_opt key issue_desc =
   let err_kind = CIssue.severity_of_issue issue in
   let method_name = Ast_utils.full_name_of_decl_opt method_decl_opt in
   let key = Hashtbl.hash (key ^ method_name) in
-  Reporting.log_issue_from_errlog err_kind errlog exn ~loc:(Some loc) ~ltr:(Some trace)
-    ~node_id:(Some (0, key))
+  Reporting.log_issue_from_errlog err_kind errlog exn ~loc ~ltr:trace
+    ~node_id:(0, key)
 
 (* General invocation function for checkers
    Takes