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+(**************************************************************************)
+(* Sail *)
+(* *)
+(* Copyright (c) 2013-2017 *)
+(* Kathyrn Gray *)
+(* Shaked Flur *)
+(* Stephen Kell *)
+(* Gabriel Kerneis *)
+(* Robert Norton-Wright *)
+(* Christopher Pulte *)
+(* Peter Sewell *)
+(* Alasdair Armstrong *)
+(* Brian Campbell *)
+(* Thomas Bauereiss *)
+(* Anthony Fox *)
+(* Jon French *)
+(* Dominic Mulligan *)
+(* Stephen Kell *)
+(* Mark Wassell *)
+(* *)
+(* All rights reserved. *)
+(* *)
+(* This software was developed by the University of Cambridge Computer *)
+(* Laboratory as part of the Rigorous Engineering of Mainstream Systems *)
+(* (REMS) project, funded by EPSRC grant EP/K008528/1. *)
+(* *)
+(* Redistribution and use in source and binary forms, with or without *)
+(* modification, are permitted provided that the following conditions *)
+(* are met: *)
+(* 1. Redistributions of source code must retain the above copyright *)
+(* notice, this list of conditions and the following disclaimer. *)
+(* 2. Redistributions in binary form must reproduce the above copyright *)
+(* notice, this list of conditions and the following disclaimer in *)
+(* the documentation and/or other materials provided with the *)
+(* distribution. *)
+(* *)
+(* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' *)
+(* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *)
+(* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *)
+(* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR *)
+(* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, *)
+(* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *)
+(* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF *)
+(* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND *)
+(* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, *)
+(* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT *)
+(* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF *)
+(* SUCH DAMAGE. *)
+(**************************************************************************)
+
+let opt_profile = ref false
+
+type profile = {
+ z3_calls : int;
+ z3_time : float
+ }
+
+let new_profile = {
+ z3_calls = 0;
+ z3_time = 0.0
+ }
+
+let profile_stack = ref []
+
+let update_profile f =
+ match !profile_stack with
+ | [] -> ()
+ | (p :: ps) ->
+ profile_stack := f p :: ps
+
+let start_z3 () =
+ update_profile (fun p -> { p with z3_calls = p.z3_calls + 1 });
+ Sys.time ()
+
+let finish_z3 t =
+ update_profile (fun p -> { p with z3_time = p.z3_time +. (Sys.time () -. t) })
+
+let start () =
+ profile_stack := new_profile :: !profile_stack;
+ Sys.time ()
+
+let finish msg t =
+ if !opt_profile then
+ begin match !profile_stack with
+ | p :: ps ->
+ prerr_endline (Printf.sprintf "%s %s: %fs" Util.("Profile" |> magenta |> clear) msg (Sys.time () -. t));
+ prerr_endline (Printf.sprintf " Z3 calls: %d, Z3 time: %fs" p.z3_calls p.z3_time);
+ profile_stack := ps
+ | [] -> ()
+ end
+ else ()