diff --git a/mc_openapi/__init__.py b/mc_openapi/__init__.py
index f0e5e1eae422c4c35f7eb3ab5b6317699a2878d1..574f4077e0a3a20831ad84ee5419f5868a4bb65c 100644
--- a/mc_openapi/__init__.py
+++ b/mc_openapi/__init__.py
@@ -1 +1 @@
-__version__ = '2.6.0'
+__version__ = '2.6.1'
diff --git a/mc_openapi/assets/templates/mc.html b/mc_openapi/assets/templates/mc.html
index 195eb4b2d6be3e0eec3938144744a642dcf1a7f7..4c39aee609fe99f66c29627330dc183468c78b12 100644
--- a/mc_openapi/assets/templates/mc.html
+++ b/mc_openapi/assets/templates/mc.html
@@ -29,7 +29,7 @@
         <li class="message is-danger">
             <div class="message-header">
                 <p>
-                    Unsatisfied
+                    Unsatisfied ({{req.time}}s)
                 </p>
                 <p>
                     <span class="tag is-family-monospace is-danger is-light">
@@ -49,7 +49,7 @@
         <li class="message is-success sat-req is-hidden">
             <div class="message-header">
                 <p>
-                    Satisfied
+                    Satisfied ({{req.time}}s)
                 </p>
                 <p>
                     <span class="tag is-family-monospace is-success is-light">
diff --git a/mc_openapi/doml_mc/imc.py b/mc_openapi/doml_mc/imc.py
index b5ee40745f7f5485616d8fc22a168943905ebdfb..f663d9084f9b867767d7d1d4cb7d46caa223cd39 100644
--- a/mc_openapi/doml_mc/imc.py
+++ b/mc_openapi/doml_mc/imc.py
@@ -3,7 +3,7 @@ from dataclasses import dataclass
 from typing import Literal
 
 from z3 import (Context, DatatypeSortRef, ExprRef, FuncDeclRef, Solver,
-                SortRef, sat)
+                SortRef, Z3Exception)
 
 from .intermediate_model.doml_element import IntermediateModel
 from .mc_result import MCResult, MCResults
@@ -166,14 +166,18 @@ class IntermediateModelChecker:
             req_type, req_err_desc_fn = req.error_description
             req_is_sat = MCResult.from_z3result(res, flipped=req.flipped)
             req_id = req.assert_name
+            try:
+                req_time = self.solver.statistics().get_key_value("time")
+            except Z3Exception:
+                req_time = "???"
+
             results.append((
                 req_is_sat,
                 req_type,
                 req_err_desc_fn(self.solver, self.smt_sorts, self.intermediate_model) if req_is_sat else "",
                 req_id,
-                req.description
-                # if res == sat else "" # not needed since we're try/catching model() errors
-                # in each requirement now
+                req.description,
+                req_time
             ))
             self.solver.pop()
 
diff --git a/mc_openapi/doml_mc/main.py b/mc_openapi/doml_mc/main.py
index c4befd1988e35951ce627ba41631a7b084b70d24..555cf4304eb2b9b14aa527d236ad29a5773dbe63 100644
--- a/mc_openapi/doml_mc/main.py
+++ b/mc_openapi/doml_mc/main.py
@@ -83,7 +83,7 @@ def verify_model(
         req_store,
         threads=threads, 
         user_str_values=user_req_str_consts,
-        disable_multithreading=True #(threads == 1)
+        disable_multithreading=(threads == 1)
     )
 
     res = results.summarize()
diff --git a/mc_openapi/doml_mc/mc_result.py b/mc_openapi/doml_mc/mc_result.py
index 253f044b8fa746699f4f1967ef14b22b86859bbf..fba8aaa505b8ece2fb0ce3b1bfa2e2feae310282 100644
--- a/mc_openapi/doml_mc/mc_result.py
+++ b/mc_openapi/doml_mc/mc_result.py
@@ -35,22 +35,22 @@ class MCResults:
     SATISFIED_MSG = "All requirements are satisfied."
 
     def __init__(self, results: list[tuple[MCResult, Literal["BUILTIN", "USER"], str, str, str]]):
-        """It receives a list of tuples (result, type, error message, id)"""
+        """It receives a list of tuples (result, type, error message, id, desc, time)"""
         self.results = results
 
     def summarize(self) -> dict[str, any]:
-        some_unsat = any(res == MCResult.unsat for res, _, _, _, _ in self.results)
-        some_dontknow = any(res == MCResult.dontknow for res, _, _, _, _ in self.results)
+        some_unsat = any(res == MCResult.unsat for res, _, _, _, _, _ in self.results)
+        some_dontknow = any(res == MCResult.dontknow for res, _, _, _, _, _ in self.results)
 
         if some_unsat:
             builtin_err_msgs = [
-                (id, msg) for res, type, msg, id, _ in self.results if res == MCResult.unsat and type == "BUILTIN"]
+                (id, msg, time) for res, type, msg, id, _, time in self.results if res == MCResult.unsat and type == "BUILTIN"]
             user_err_msgs = [
-                (id, msg) for res, type, msg, id, _ in self.results if res == MCResult.unsat and type == "USER"]
+                (id, msg, time) for res, type, msg, id, _, time in self.results if res == MCResult.unsat and type == "USER"]
 
             # Print to text (instead of HTML)
-            builtin_err_msg = "\n".join([f"[{id}] {msg}" for id, msg in builtin_err_msgs])
-            user_err_msg = "\n".join([f"[{id}] {msg}" for id, msg in user_err_msgs])
+            builtin_err_msg = "\n".join([f"[{id}][{time}s] {msg}" for id, msg, time in builtin_err_msgs])
+            user_err_msg = "\n".join([f"[{id}][{time}s] {msg}" for id, msg, time  in user_err_msgs])
 
             err_msg = ""
             if builtin_err_msgs:
@@ -66,9 +66,10 @@ class MCResults:
                     "type": type,
                     "message": msg,
                     "result": res.name,
-                    "description": desc 
+                    "description": desc,
+                    "time": time
                 }
-                for res, type, msg, id, desc in self.results
+                for res, type, msg, id, desc, time in self.results
             ]
 
             return {