diff --git a/examples/python/line_balancing_sat.py b/examples/python/line_balancing_sat.py
index 2e8c5e91c9..064884a64c 100644
--- a/examples/python/line_balancing_sat.py
+++ b/examples/python/line_balancing_sat.py
@@ -34,8 +34,8 @@ from typing import Dict, Sequence
 from absl import app
 from absl import flags
 
-from ortools.sat.python import cp_model
 
+from ortools.sat.python import cp_model
 
 _INPUT = flags.DEFINE_string("input", "", "Input file to parse and solve.")
 _PARAMS = flags.DEFINE_string("params", "", "Sat solver parameters.")
diff --git a/examples/python/rcpsp_sat.py b/examples/python/rcpsp_sat.py
index aacfb7d523..6d413d4057 100644
--- a/examples/python/rcpsp_sat.py
+++ b/examples/python/rcpsp_sat.py
@@ -26,9 +26,9 @@ import collections
 from absl import app
 from absl import flags
 
+from ortools.sat.python import cp_model
 from ortools.scheduling import rcpsp_pb2
 from ortools.scheduling.python import rcpsp
-from ortools.sat.python import cp_model
 
 _INPUT = flags.DEFINE_string("input", "", "Input file to parse and solve.")
 _OUTPUT_PROTO = flags.DEFINE_string(
diff --git a/examples/python/sudoku_sat.py b/examples/python/sudoku_sat.py
index a66425eae9..069322242c 100755
--- a/examples/python/sudoku_sat.py
+++ b/examples/python/sudoku_sat.py
@@ -68,12 +68,8 @@ def solve_sudoku() -> None:
             if initial_grid[i][j]:
                 model.add(grid[(i, j)] == initial_grid[i][j])
 
-    model.export_to_file('/tmp/sudoku_sat.pb.txt')
-
     # Solves and prints out the solution.
     solver = cp_model.CpSolver()
-    solver.parameters.num_workers = 1
-    solver.parameters.log_search_progress = True
     status = solver.solve(model)
     if status == cp_model.OPTIMAL:
         for i in line:
diff --git a/ortools/sat/cp_model_utils.cc b/ortools/sat/cp_model_utils.cc
index efdf54130b..6af621ec36 100644
--- a/ortools/sat/cp_model_utils.cc
+++ b/ortools/sat/cp_model_utils.cc
@@ -37,7 +37,7 @@
 #include "ortools/util/saturated_arithmetic.h"
 #include "ortools/util/sorted_interval_list.h"
 
-ABSL_FLAG(bool, cp_model_dump_models, true,
+ABSL_FLAG(bool, cp_model_dump_models, false,
           "DEBUG ONLY. When set to true, SolveCpModel() will dump its model "
           "protos (original model, presolved model, mapping model) in text "
           "format to 'FLAGS_cp_model_dump_prefix'{model|presolved_model|"
@@ -955,7 +955,6 @@ void RegisterFieldPrinters(
     if (field->type() == google::protobuf::FieldDescriptor::TYPE_MESSAGE) {
       if (field->message_type() == IntegerVariableProto::descriptor() ||
           field->message_type() == LinearExpressionProto::descriptor()) {
-            LOG(INFO) << "########### Register printer";
         printer->RegisterFieldValuePrinter(field, new InlineFieldPrinter());
       } else {
         RegisterFieldPrinters(field->message_type(), descriptors, printer);