diff --git a/app/RunHighs.cpp b/app/RunHighs.cpp
index ded6620453..89c4efceda 100644
--- a/app/RunHighs.cpp
+++ b/app/RunHighs.cpp
@@ -14,7 +14,7 @@
  * @brief HiGHS main
  */
 #include "Highs.h"
-//#include "io/HighsIO.h"
+// #include "io/HighsIO.h"
 #include "lp_data/HighsRuntimeOptions.h"
 
 void reportModelStatsOrError(const HighsLogOptions& log_options,
diff --git a/check/TestHighsHessian.cpp b/check/TestHighsHessian.cpp
index 2bf3379c01..3882aea66e 100644
--- a/check/TestHighsHessian.cpp
+++ b/check/TestHighsHessian.cpp
@@ -2,7 +2,7 @@
 #include "lp_data/HighsOptions.h"
 #include "model/HighsHessian.h"
 #include "model/HighsHessianUtils.h"
-//#include "<cstdio>"
+// #include "<cstdio>"
 
 const bool dev_run = false;
 
diff --git a/check/TestHighsParallel.cpp b/check/TestHighsParallel.cpp
index a070fcb323..cafa374781 100644
--- a/check/TestHighsParallel.cpp
+++ b/check/TestHighsParallel.cpp
@@ -123,7 +123,7 @@ void matrix_multiplication_omp(unsigned nthreads) {
 }
 #endif
 void matrix_multiplication_highs(unsigned nthreads) {
-  //#pragma omp parallel for private(i, j)
+  // #pragma omp parallel for private(i, j)
   parallel::for_each(0, N, [&](HighsInt start, HighsInt end) {
     for (int i = start; i < end; ++i) {
       for (int j = 0; j < N; j++) {
diff --git a/check/TestThrow.cpp b/check/TestThrow.cpp
index 429c17980b..0088601279 100644
--- a/check/TestThrow.cpp
+++ b/check/TestThrow.cpp
@@ -1,9 +1,9 @@
-//#include "Highs.h"
+// #include "Highs.h"
 #include <iostream>
 #include <stdexcept>  //Used in HiGHS
 
 #include "catch.hpp"
-//#include <exception>
+// #include <exception>
 const bool dev_run = false;
 
 void invalidArgument() {
diff --git a/src/io/HMpsFF.h b/src/io/HMpsFF.h
index 0b855bf0b5..d9936bf93e 100644
--- a/src/io/HMpsFF.h
+++ b/src/io/HMpsFF.h
@@ -35,7 +35,7 @@
 
 #include "io/HighsIO.h"
 #include "model/HighsModel.h"
-//#include "util/HighsInt.h"
+// #include "util/HighsInt.h"
 #include "util/stringutil.h"
 
 using Triplet = std::tuple<HighsInt, HighsInt, double>;
diff --git a/src/lp_data/HighsDebug.h b/src/lp_data/HighsDebug.h
index a80bd8bd5f..b83ed4cdc8 100644
--- a/src/lp_data/HighsDebug.h
+++ b/src/lp_data/HighsDebug.h
@@ -23,7 +23,7 @@
 #include "lp_data/HConst.h"
 #include "lp_data/HighsStatus.h"
 
-//#include "lp_data/HighsOptions.h"
+// #include "lp_data/HighsOptions.h"
 
 HighsStatus debugDebugToHighsStatus(const HighsDebugStatus debug_status);
 
diff --git a/src/lp_data/HighsInfoDebug.h b/src/lp_data/HighsInfoDebug.h
index 14127458bb..3821618a0a 100644
--- a/src/lp_data/HighsInfoDebug.h
+++ b/src/lp_data/HighsInfoDebug.h
@@ -20,7 +20,7 @@
 #include "lp_data/HighsInfo.h"
 #include "lp_data/HighsLp.h"
 #include "lp_data/HighsOptions.h"
-//#include "lp_data/HighsLp.h"
+// #include "lp_data/HighsLp.h"
 
 HighsDebugStatus debugInfo(const HighsOptions& options, const HighsLp& lp,
                            const HighsBasis& basis,
diff --git a/src/lp_data/HighsModelUtils.h b/src/lp_data/HighsModelUtils.h
index 35ef675dc4..ffcae965db 100644
--- a/src/lp_data/HighsModelUtils.h
+++ b/src/lp_data/HighsModelUtils.h
@@ -16,14 +16,14 @@
 #ifndef LP_DATA_HIGHSMODELUTILS_H_
 #define LP_DATA_HIGHSMODELUTILS_H_
 
-//#include "Highs.h"
-//#include "lp_data/HighsStatus.h"
+// #include "Highs.h"
+// #include "lp_data/HighsStatus.h"
 #include "lp_data/HighsInfo.h"
 #include "model/HighsModel.h"
-//#include "lp_data/HStruct.h"
-//#include "lp_data/HighsInfo.h"
-//#include "lp_data/HighsLp.h"
-//#include "lp_data/HighsOptions.h"
+// #include "lp_data/HStruct.h"
+// #include "lp_data/HighsInfo.h"
+// #include "lp_data/HighsLp.h"
+// #include "lp_data/HighsOptions.h"
 
 // Analyse lower and upper bounds of a model
 void analyseModelBounds(const HighsLogOptions& log_options, const char* message,
diff --git a/src/simplex/HApp.h b/src/simplex/HApp.h
index c9a3c6cc06..bb275eaa92 100644
--- a/src/simplex/HApp.h
+++ b/src/simplex/HApp.h
@@ -14,13 +14,13 @@
 #define SIMPLEX_HAPP_H_
 
 // todo: clear includes.
-//#include <cstring>
-//#include <fstream>
-//#include <iomanip>
-//#include <iostream>
-//#include <map>
-//#include <set>
-//#include <vector>
+// #include <cstring>
+// #include <fstream>
+// #include <iomanip>
+// #include <iostream>
+// #include <map>
+// #include <set>
+// #include <vector>
 
 #include "lp_data/HighsLpSolverObject.h"
 #include "lp_data/HighsLpUtils.h"
diff --git a/src/simplex/HEkkDual.cpp b/src/simplex/HEkkDual.cpp
index 4a9f45f051..ee91a698bf 100644
--- a/src/simplex/HEkkDual.cpp
+++ b/src/simplex/HEkkDual.cpp
@@ -1264,25 +1264,25 @@ void HEkkDual::iterateTasks() {
   if (1.0 * row_ep.count / solver_num_row < 0.01) slice_PRICE = 0;
 
   analysis->simplexTimerStart(Group1Clock);
-  //#pragma omp parallel
-  //#pragma omp single
+  // #pragma omp parallel
+  // #pragma omp single
   {
-    //#pragma omp task
+    // #pragma omp task
     highs::parallel::spawn([&]() {
       col_DSE.copy(&row_ep);
       updateFtranDSE(&col_DSE);
     });
-    //#pragma omp task
+    // #pragma omp task
     {
       if (slice_PRICE)
         chooseColumnSlice(&row_ep);
       else
         chooseColumn(&row_ep);
-      //#pragma omp task
+      // #pragma omp task
       highs::parallel::spawn([&]() { updateFtranBFRT(); });
-      //#pragma omp task
+      // #pragma omp task
       updateFtran();
-      //#pragma omp taskwait
+      // #pragma omp taskwait
       highs::parallel::sync();
     }
 
diff --git a/src/simplex/HEkkDualMulti.cpp b/src/simplex/HEkkDualMulti.cpp
index a50775288b..95029540f7 100644
--- a/src/simplex/HEkkDualMulti.cpp
+++ b/src/simplex/HEkkDualMulti.cpp
@@ -44,8 +44,8 @@ void HEkkDual::iterateMulti() {
     slice_PRICE = 0;
 
   if (slice_PRICE) {
-    //#pragma omp parallel
-    //#pragma omp single
+    // #pragma omp parallel
+    // #pragma omp single
     chooseColumnSlice(multi_finish[multi_nFinish].row_ep);
   } else {
     chooseColumn(multi_finish[multi_nFinish].row_ep);
@@ -200,7 +200,7 @@ void HEkkDual::majorChooseRowBtran() {
   }
   std::vector<double>& edge_weight = ekk_instance_.dual_edge_weight_;
   // 4.2 Perform BTRAN
-  //#pragma omp parallel for schedule(static, 1)
+  // #pragma omp parallel for schedule(static, 1)
   // printf("start %d tasks for btran\n", multi_ntasks);
   // std::vector<HighsInt> tmp(multi_ntasks);
   highs::parallel::for_each(0, multi_ntasks, [&](HighsInt start, HighsInt end) {
@@ -491,7 +491,7 @@ void HEkkDual::minorUpdateRows() {
     }
 
     // Perform tasks
-    //#pragma omp parallel for schedule(dynamic)
+    // #pragma omp parallel for schedule(dynamic)
     // printf("minorUpdatesRows: starting %d tasks\n", multi_nTasks);
     highs::parallel::for_each(
         0, multi_nTasks, [&](HighsInt start, HighsInt end) {
@@ -650,7 +650,7 @@ void HEkkDual::majorUpdateFtranParallel() {
   }
 
   // Perform FTRAN
-  //#pragma omp parallel for schedule(dynamic, 1)
+  // #pragma omp parallel for schedule(dynamic, 1)
   // printf("majorUpdateFtranParallel: starting %d tasks\n", multi_ntasks);
   highs::parallel::for_each(0, multi_ntasks, [&](HighsInt start, HighsInt end) {
     for (HighsInt i = start; i < end; i++) {
@@ -714,7 +714,7 @@ void HEkkDual::majorUpdateFtranFinal() {
         // The FTRAN regular buffer
         if (fabs(pivotX1) > kHighsTiny) {
           const double pivot = pivotX1 / pivotAlpha;
-          //#pragma omp parallel for
+          // #pragma omp parallel for
           highs::parallel::for_each(
               0, solver_num_row,
               [&](HighsInt start, HighsInt end) {
@@ -727,7 +727,7 @@ void HEkkDual::majorUpdateFtranFinal() {
         // The FTRAN-DSE buffer
         if (fabs(pivotX2) > kHighsTiny) {
           const double pivot = pivotX2 / pivotAlpha;
-          //#pragma omp parallel for
+          // #pragma omp parallel for
           highs::parallel::for_each(
               0, solver_num_row,
               [&](HighsInt start, HighsInt end) {
@@ -774,7 +774,7 @@ void HEkkDual::majorUpdatePrimal() {
     // non-pivotal edge weights
     const double* mixArray = &col_BFRT.array[0];
     double* local_work_infeasibility = &dualRHS.work_infeasibility[0];
-    //#pragma omp parallel for schedule(static)
+    // #pragma omp parallel for schedule(static)
     highs::parallel::for_each(
         0, solver_num_row,
         [&](HighsInt start, HighsInt end) {
@@ -805,7 +805,7 @@ void HEkkDual::majorUpdatePrimal() {
           // Update steepest edge weights
           const double* dseArray = &multi_finish[iFn].row_ep->array[0];
           const double Kai = -2 / multi_finish[iFn].alpha_row;
-          //#pragma omp parallel for schedule(static)
+          // #pragma omp parallel for schedule(static)
           highs::parallel::for_each(
               0, solver_num_row,
               [&](HighsInt start, HighsInt end) {
diff --git a/src/simplex/HSimplex.cpp b/src/simplex/HSimplex.cpp
index 837d1e7995..4fb326072b 100644
--- a/src/simplex/HSimplex.cpp
+++ b/src/simplex/HSimplex.cpp
@@ -21,8 +21,8 @@
 #include <cmath>
 #include <vector>
 
-//#include "lp_data/HighsLpUtils.h"
-//#include "util/HighsSort.h"
+// #include "lp_data/HighsLpUtils.h"
+// #include "util/HighsSort.h"
 
 using std::max;
 using std::min;
diff --git a/src/simplex/HSimplexNlaDebug.cpp b/src/simplex/HSimplexNlaDebug.cpp
index 349f16647a..daafcfd984 100644
--- a/src/simplex/HSimplexNlaDebug.cpp
+++ b/src/simplex/HSimplexNlaDebug.cpp
@@ -17,7 +17,7 @@
 #include "simplex/HSimplexNla.h"
 #include "util/HighsRandom.h"
 
-//#include <stdio.h>
+// #include <stdio.h>
 
 const double kResidualLargeError = 1e-8;
 const double kResidualExcessiveError = sqrt(kResidualLargeError);
diff --git a/src/simplex/HSimplexNlaProductForm.cpp b/src/simplex/HSimplexNlaProductForm.cpp
index 3e8c3f3d6b..237dff089e 100644
--- a/src/simplex/HSimplexNlaProductForm.cpp
+++ b/src/simplex/HSimplexNlaProductForm.cpp
@@ -16,7 +16,7 @@
  */
 #include "simplex/HSimplexNla.h"
 
-//#include <stdio.h>
+// #include <stdio.h>
 #include <algorithm>
 
 using std::fabs;
diff --git a/src/simplex/HighsSimplexAnalysis.cpp b/src/simplex/HighsSimplexAnalysis.cpp
index c362cdfef7..44592bee7b 100644
--- a/src/simplex/HighsSimplexAnalysis.cpp
+++ b/src/simplex/HighsSimplexAnalysis.cpp
@@ -14,7 +14,7 @@
  * @brief
  */
 #include <cmath>
-//#include <cstdio>
+// #include <cstdio>
 #include <iomanip>
 
 #include "HConfig.h"
diff --git a/src/simplex/SimplexStruct.h b/src/simplex/SimplexStruct.h
index 6c97cba48b..02575860ea 100644
--- a/src/simplex/SimplexStruct.h
+++ b/src/simplex/SimplexStruct.h
@@ -19,7 +19,7 @@
 #include <cstdint>
 #include <vector>
 
-//#include "lp_data/HighsLp.h"
+// #include "lp_data/HighsLp.h"
 #include "lp_data/HConst.h"
 #include "simplex/SimplexConst.h"
 
diff --git a/src/util/HFactor.cpp b/src/util/HFactor.cpp
index 3eb759fa74..8bda0c88d0 100644
--- a/src/util/HFactor.cpp
+++ b/src/util/HFactor.cpp
@@ -879,7 +879,10 @@ HighsInt HFactor::buildKernel() {
 
   const bool progress_report = false;  // num_basic != num_row;
   const HighsInt progress_frequency = 10000;
-  const HighsInt timer_frequency = 100;
+  // Initial timer frequency: may be reduced if iterations get slow
+  HighsInt timer_frequency = 100;
+  double previous_iteration_time = 0;
+  double average_iteration_time = 0;
   const bool check_for_timeout = this->time_limit_ < kHighsInf;
   HighsInt search_k = 0;
 
@@ -890,9 +893,26 @@ HighsInt HFactor::buildKernel() {
       reportAsm();
     }
     // Detemine whether to return due to exceeding the time limit
-    if (check_for_timeout && search_k % timer_frequency == 0)
-      if (build_timer_->readRunHighsClock() > this->time_limit_)
+    if (check_for_timeout && search_k % timer_frequency == 0) {
+      double current_time = build_timer_->readRunHighsClock();
+      double time_difference = current_time - previous_iteration_time;
+      previous_iteration_time = current_time;
+      double iteration_time = time_difference / (1.0 * timer_frequency);
+      average_iteration_time =
+          0.9 * average_iteration_time + 0.1 * iteration_time;
+
+      if (time_difference > this->time_limit_ / 1e3)
+        timer_frequency = std::max(HighsInt(1), timer_frequency / 10);
+      HighsInt iterations_left = kernel_dim - search_k + 1;
+      double remaining_time_bound = average_iteration_time * iterations_left;
+      double total_time_bound = current_time + remaining_time_bound;
+      printf("%d; Iter: Time %11.4g; average = %11.4g; Bound = %11.4g\n",
+             search_k, iteration_time, average_iteration_time,
+             total_time_bound);
+      if (current_time > this->time_limit_ ||
+          total_time_bound > this->time_limit_)
         return kBuildKernelReturnTimeout;
+    }
 
     /**
      * 1. Search for the pivot
diff --git a/src/util/HSet.h b/src/util/HSet.h
index 5a9e55a195..18cfd71b20 100644
--- a/src/util/HSet.h
+++ b/src/util/HSet.h
@@ -24,7 +24,7 @@
 
 #include "util/HighsInt.h"
 
-//#include <iostream>
+// #include <iostream>
 
 using std::vector;
 
diff --git a/src/util/HighsMatrixUtils.h b/src/util/HighsMatrixUtils.h
index a12bf67a4d..0dabdc3909 100644
--- a/src/util/HighsMatrixUtils.h
+++ b/src/util/HighsMatrixUtils.h
@@ -19,7 +19,7 @@
 #include <cassert>
 #include <vector>
 
-//#include "lp_data/HighsStatus.h"
+// #include "lp_data/HighsStatus.h"
 #include "lp_data/HighsOptions.h"
 
 using std::vector;