diff --git a/test_regress/t/t_assert_procedural_clk.out b/test_regress/t/t_assert_procedural_clk.out
deleted file mode 100644
index 365914727..000000000
--- a/test_regress/t/t_assert_procedural_clk.out
+++ /dev/null
@@ -1,9 +0,0 @@
-%Error: t/t_assert_procedural_clk.v:21:13: Unsupported: Procedural concurrent assertion with clocking event inside always (IEEE 1800-2017 16.14.6)
-                                         : ... note: In instance 't'
-   21 |             assume property (@(posedge clk) cyc == 9);
-      |             ^~~~~~
-%Error: t/t_assert_procedural_clk.v:22:13: Unsupported: Procedural concurrent assertion with clocking event inside always (IEEE 1800-2017 16.14.6)
-                                         : ... note: In instance 't'
-   22 |             assume property (@(negedge clk) cyc == 9);
-      |             ^~~~~~
-%Error: Exiting due to
diff --git a/test_regress/t/t_assert_procedural_clk_bad.out b/test_regress/t/t_assert_procedural_clk_bad.out
new file mode 100644
index 000000000..e1e26adee
--- /dev/null
+++ b/test_regress/t/t_assert_procedural_clk_bad.out
@@ -0,0 +1,9 @@
+%Error: t/t_assert_procedural_clk_bad.v:21:13: Unsupported: Procedural concurrent assertion with clocking event inside always (IEEE 1800-2017 16.14.6)
+                                             : ... note: In instance 't'
+   21 |             assume property (@(posedge clk) cyc == 9);
+      |             ^~~~~~
+%Error: t/t_assert_procedural_clk_bad.v:22:13: Unsupported: Procedural concurrent assertion with clocking event inside always (IEEE 1800-2017 16.14.6)
+                                             : ... note: In instance 't'
+   22 |             assume property (@(negedge clk) cyc == 9);
+      |             ^~~~~~
+%Error: Exiting due to
diff --git a/test_regress/t/t_assert_procedural_clk.pl b/test_regress/t/t_assert_procedural_clk_bad.pl
similarity index 100%
rename from test_regress/t/t_assert_procedural_clk.pl
rename to test_regress/t/t_assert_procedural_clk_bad.pl
diff --git a/test_regress/t/t_assert_procedural_clk.v b/test_regress/t/t_assert_procedural_clk_bad.v
similarity index 100%
rename from test_regress/t/t_assert_procedural_clk.v
rename to test_regress/t/t_assert_procedural_clk_bad.v
diff --git a/test_regress/t/t_assert_property_pexpr_unsup.pl b/test_regress/t/t_assert_property_pexpr_unsup.pl
index c9ca914d8..fa4fb8b52 100755
--- a/test_regress/t/t_assert_property_pexpr_unsup.pl
+++ b/test_regress/t/t_assert_property_pexpr_unsup.pl
@@ -13,7 +13,7 @@ scenarios(vlt => 1);
 compile(
     expect_filename => $Self->{golden_filename},
     verilator_flags2 => ['--assert --error-limit 1000'],
-    fails => 1,
+    fails => $Self->{vlt_all},
     );
 
 ok(1);
diff --git a/test_regress/t/t_checker.pl b/test_regress/t/t_checker.pl
index 1ce0595d2..657040447 100755
--- a/test_regress/t/t_checker.pl
+++ b/test_regress/t/t_checker.pl
@@ -13,7 +13,7 @@ scenarios(vlt => 1);
 compile(
     verilator_flags2 => ['--assert'],
     expect_filename => $Self->{golden_filename},
-    fails => 1,
+    fails => $Self->{vlt_all},
     );
 
 #execute(
diff --git a/test_regress/t/t_lint_always_comb_multidriven.out b/test_regress/t/t_lint_always_comb_multidriven.out
deleted file mode 100644
index a9708f7f6..000000000
--- a/test_regress/t/t_lint_always_comb_multidriven.out
+++ /dev/null
@@ -1,87 +0,0 @@
-%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven.v:26:16: Variable written to in always_comb also written by other process (IEEE 1800-2017 9.2.2.2): 'out1'
-                                                              : ... note: In instance 't'
-                      t/t_lint_always_comb_multidriven.v:26:16: 
-   26 |    always_comb out1 = d;   
-      |                ^~~~
-                      t/t_lint_always_comb_multidriven.v:25:11: ... Location of other write
-   25 |    assign out1 = 1'b0;
-      |           ^~~~
-                      ... For warning description see https://verilator.org/warn/MULTIDRIVEN?v=latest
-                      ... Use "/* verilator lint_off MULTIDRIVEN */" and lint_on around source to disable this message.
-%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven.v:29:16: Variable written to in always_comb also written by other process (IEEE 1800-2017 9.2.2.2): 'out2'
-                                                              : ... note: In instance 't'
-                      t/t_lint_always_comb_multidriven.v:29:16: 
-   29 |    always_comb out2 = 1'b0;   
-      |                ^~~~
-                      t/t_lint_always_comb_multidriven.v:28:11: ... Location of other write
-   28 |    assign out2 = d;
-      |           ^~~~
-%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven.v:32:11: Variable also written to in always_comb (IEEE 1800-2017 9.2.2.2): 'out3'
-                                                              : ... note: In instance 't'
-                      t/t_lint_always_comb_multidriven.v:32:11: 
-   32 |    assign out3 = 1'b0;   
-      |           ^~~~
-                      t/t_lint_always_comb_multidriven.v:31:16: ... Location of always_comb write
-   31 |    always_comb out3 = d;
-      |                ^~~~
-%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven.v:35:11: Variable also written to in always_comb (IEEE 1800-2017 9.2.2.2): 'out4'
-                                                              : ... note: In instance 't'
-                      t/t_lint_always_comb_multidriven.v:35:11: 
-   35 |    assign out4 = d;   
-      |           ^~~~
-                      t/t_lint_always_comb_multidriven.v:34:16: ... Location of always_comb write
-   34 |    always_comb out4 = 1'b0;
-      |                ^~~~
-%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven.v:38:16: Variable written to in always_comb also written by other process (IEEE 1800-2017 9.2.2.2): 'out5'
-                                                              : ... note: In instance 't'
-                      t/t_lint_always_comb_multidriven.v:38:16: 
-   38 |    always_comb out5 = d;   
-      |                ^~~~
-                      t/t_lint_always_comb_multidriven.v:37:16: ... Location of other write
-   37 |    always_comb out5 = 1'b0;
-      |                ^~~~
-%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven.v:41:16: Variable written to in always_comb also written by other process (IEEE 1800-2017 9.2.2.2): 'out6'
-                                                              : ... note: In instance 't'
-                      t/t_lint_always_comb_multidriven.v:41:16: 
-   41 |    always_comb out6 = 1'b0;   
-      |                ^~~~
-                      t/t_lint_always_comb_multidriven.v:40:16: ... Location of other write
-   40 |    always_comb out6 = d;
-      |                ^~~~
-%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven.v:17:15: Bits [0:0] of signal 'out2' have multiple combinational drivers
-                                                              : ... note: In instance 't'
-                      t/t_lint_always_comb_multidriven.v:28:16: ... Location of first driver
-   28 |    assign out2 = d;
-      |                ^
-                      t/t_lint_always_comb_multidriven.v:29:21: ... Location of other driver
-   29 |    always_comb out2 = 1'b0;   
-      |                     ^
-                      t/t_lint_always_comb_multidriven.v:17:15: ... Only the first driver will be respected
-%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven.v:19:15: Bits [0:0] of signal 'out4' have multiple combinational drivers
-                                                              : ... note: In instance 't'
-                      t/t_lint_always_comb_multidriven.v:34:21: ... Location of first driver
-   34 |    always_comb out4 = 1'b0;
-      |                     ^
-                      t/t_lint_always_comb_multidriven.v:35:16: ... Location of other driver
-   35 |    assign out4 = d;   
-      |                ^
-                      t/t_lint_always_comb_multidriven.v:19:15: ... Only the first driver will be respected
-%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven.v:20:15: Bits [0:0] of signal 'out5' have multiple combinational drivers
-                                                              : ... note: In instance 't'
-                      t/t_lint_always_comb_multidriven.v:37:21: ... Location of first driver
-   37 |    always_comb out5 = 1'b0;
-      |                     ^
-                      t/t_lint_always_comb_multidriven.v:38:21: ... Location of other driver
-   38 |    always_comb out5 = d;   
-      |                     ^
-                      t/t_lint_always_comb_multidriven.v:20:15: ... Only the first driver will be respected
-%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven.v:21:15: Bits [0:0] of signal 'out6' have multiple combinational drivers
-                                                              : ... note: In instance 't'
-                      t/t_lint_always_comb_multidriven.v:40:21: ... Location of first driver
-   40 |    always_comb out6 = d;
-      |                     ^
-                      t/t_lint_always_comb_multidriven.v:41:21: ... Location of other driver
-   41 |    always_comb out6 = 1'b0;   
-      |                     ^
-                      t/t_lint_always_comb_multidriven.v:21:15: ... Only the first driver will be respected
-%Error: Exiting due to
diff --git a/test_regress/t/t_lint_always_comb_multidriven_bad.out b/test_regress/t/t_lint_always_comb_multidriven_bad.out
new file mode 100644
index 000000000..478dab0f7
--- /dev/null
+++ b/test_regress/t/t_lint_always_comb_multidriven_bad.out
@@ -0,0 +1,87 @@
+%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven_bad.v:26:16: Variable written to in always_comb also written by other process (IEEE 1800-2017 9.2.2.2): 'out1'
+                                                                  : ... note: In instance 't'
+                      t/t_lint_always_comb_multidriven_bad.v:26:16: 
+   26 |    always_comb out1 = d;   
+      |                ^~~~
+                      t/t_lint_always_comb_multidriven_bad.v:25:11: ... Location of other write
+   25 |    assign out1 = 1'b0;
+      |           ^~~~
+                      ... For warning description see https://verilator.org/warn/MULTIDRIVEN?v=latest
+                      ... Use "/* verilator lint_off MULTIDRIVEN */" and lint_on around source to disable this message.
+%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven_bad.v:29:16: Variable written to in always_comb also written by other process (IEEE 1800-2017 9.2.2.2): 'out2'
+                                                                  : ... note: In instance 't'
+                      t/t_lint_always_comb_multidriven_bad.v:29:16: 
+   29 |    always_comb out2 = 1'b0;   
+      |                ^~~~
+                      t/t_lint_always_comb_multidriven_bad.v:28:11: ... Location of other write
+   28 |    assign out2 = d;
+      |           ^~~~
+%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven_bad.v:32:11: Variable also written to in always_comb (IEEE 1800-2017 9.2.2.2): 'out3'
+                                                                  : ... note: In instance 't'
+                      t/t_lint_always_comb_multidriven_bad.v:32:11: 
+   32 |    assign out3 = 1'b0;   
+      |           ^~~~
+                      t/t_lint_always_comb_multidriven_bad.v:31:16: ... Location of always_comb write
+   31 |    always_comb out3 = d;
+      |                ^~~~
+%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven_bad.v:35:11: Variable also written to in always_comb (IEEE 1800-2017 9.2.2.2): 'out4'
+                                                                  : ... note: In instance 't'
+                      t/t_lint_always_comb_multidriven_bad.v:35:11: 
+   35 |    assign out4 = d;   
+      |           ^~~~
+                      t/t_lint_always_comb_multidriven_bad.v:34:16: ... Location of always_comb write
+   34 |    always_comb out4 = 1'b0;
+      |                ^~~~
+%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven_bad.v:38:16: Variable written to in always_comb also written by other process (IEEE 1800-2017 9.2.2.2): 'out5'
+                                                                  : ... note: In instance 't'
+                      t/t_lint_always_comb_multidriven_bad.v:38:16: 
+   38 |    always_comb out5 = d;   
+      |                ^~~~
+                      t/t_lint_always_comb_multidriven_bad.v:37:16: ... Location of other write
+   37 |    always_comb out5 = 1'b0;
+      |                ^~~~
+%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven_bad.v:41:16: Variable written to in always_comb also written by other process (IEEE 1800-2017 9.2.2.2): 'out6'
+                                                                  : ... note: In instance 't'
+                      t/t_lint_always_comb_multidriven_bad.v:41:16: 
+   41 |    always_comb out6 = 1'b0;   
+      |                ^~~~
+                      t/t_lint_always_comb_multidriven_bad.v:40:16: ... Location of other write
+   40 |    always_comb out6 = d;
+      |                ^~~~
+%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven_bad.v:17:15: Bits [0:0] of signal 'out2' have multiple combinational drivers
+                                                                  : ... note: In instance 't'
+                      t/t_lint_always_comb_multidriven_bad.v:28:16: ... Location of first driver
+   28 |    assign out2 = d;
+      |                ^
+                      t/t_lint_always_comb_multidriven_bad.v:29:21: ... Location of other driver
+   29 |    always_comb out2 = 1'b0;   
+      |                     ^
+                      t/t_lint_always_comb_multidriven_bad.v:17:15: ... Only the first driver will be respected
+%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven_bad.v:19:15: Bits [0:0] of signal 'out4' have multiple combinational drivers
+                                                                  : ... note: In instance 't'
+                      t/t_lint_always_comb_multidriven_bad.v:34:21: ... Location of first driver
+   34 |    always_comb out4 = 1'b0;
+      |                     ^
+                      t/t_lint_always_comb_multidriven_bad.v:35:16: ... Location of other driver
+   35 |    assign out4 = d;   
+      |                ^
+                      t/t_lint_always_comb_multidriven_bad.v:19:15: ... Only the first driver will be respected
+%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven_bad.v:20:15: Bits [0:0] of signal 'out5' have multiple combinational drivers
+                                                                  : ... note: In instance 't'
+                      t/t_lint_always_comb_multidriven_bad.v:37:21: ... Location of first driver
+   37 |    always_comb out5 = 1'b0;
+      |                     ^
+                      t/t_lint_always_comb_multidriven_bad.v:38:21: ... Location of other driver
+   38 |    always_comb out5 = d;   
+      |                     ^
+                      t/t_lint_always_comb_multidriven_bad.v:20:15: ... Only the first driver will be respected
+%Warning-MULTIDRIVEN: t/t_lint_always_comb_multidriven_bad.v:21:15: Bits [0:0] of signal 'out6' have multiple combinational drivers
+                                                                  : ... note: In instance 't'
+                      t/t_lint_always_comb_multidriven_bad.v:40:21: ... Location of first driver
+   40 |    always_comb out6 = d;
+      |                     ^
+                      t/t_lint_always_comb_multidriven_bad.v:41:21: ... Location of other driver
+   41 |    always_comb out6 = 1'b0;   
+      |                     ^
+                      t/t_lint_always_comb_multidriven_bad.v:21:15: ... Only the first driver will be respected
+%Error: Exiting due to
diff --git a/test_regress/t/t_lint_always_comb_multidriven.pl b/test_regress/t/t_lint_always_comb_multidriven_bad.pl
similarity index 100%
rename from test_regress/t/t_lint_always_comb_multidriven.pl
rename to test_regress/t/t_lint_always_comb_multidriven_bad.pl
diff --git a/test_regress/t/t_lint_always_comb_multidriven.v b/test_regress/t/t_lint_always_comb_multidriven_bad.v
similarity index 100%
rename from test_regress/t/t_lint_always_comb_multidriven.v
rename to test_regress/t/t_lint_always_comb_multidriven_bad.v
diff --git a/test_regress/t/t_lint_always_comb_multidriven_compile_public_flat.pl b/test_regress/t/t_lint_always_comb_multidriven_compile_public_flat_bad.pl
similarity index 82%
rename from test_regress/t/t_lint_always_comb_multidriven_compile_public_flat.pl
rename to test_regress/t/t_lint_always_comb_multidriven_compile_public_flat_bad.pl
index 9cf2c191e..48576365b 100755
--- a/test_regress/t/t_lint_always_comb_multidriven_compile_public_flat.pl
+++ b/test_regress/t/t_lint_always_comb_multidriven_compile_public_flat_bad.pl
@@ -10,12 +10,12 @@ if (!$::Driver) { use FindBin; exec("$FindBin::Bin/bootstrap.pl", @ARGV, $0); di
 
 scenarios(vlt => 1);
 
-top_filename("t/t_lint_always_comb_multidriven.v");
+top_filename("t/t_lint_always_comb_multidriven_bad.v");
 
 lint(
     verilator_flags2 => ['--public-flat-rw --lint-only'],
     fails => 1,
-    expect_filename => "t/t_lint_always_comb_multidriven.out",
+    expect_filename => "t/t_lint_always_comb_multidriven_bad.out",
     );
 
 ok(1);