diff --git a/libsrc/core/exception.cpp b/libsrc/core/exception.cpp
index 93e0e7e9..49594bd1 100644
--- a/libsrc/core/exception.cpp
+++ b/libsrc/core/exception.cpp
@@ -14,6 +14,7 @@
 #include <memory>
 #include <cxxabi.h>
 #include <signal.h>
+#include <vector>
 
 namespace ngcore
 {
@@ -104,11 +105,11 @@ namespace ngcore
 
       if(!funcname.empty())
       {
-        std::array<char, 256> buffer;
+        std::vector<char> buffer(10240);
         int status;
         size_t size = buffer.size();
-        abi::__cxa_demangle(funcname.c_str(), buffer.data(), &size, &status);
-        out << "in " << yellow << buffer.data() << reset_shell << '\n';
+        abi::__cxa_demangle(funcname.c_str(), &buffer[0], &size, &status);
+        out << "in " << yellow << &buffer[0] << reset_shell << '\n';
 
         std::string nm_command = "nm " + libname + " | grep " + funcname + " | cut -f 1 -d ' '";
         std::string output;
@@ -145,12 +146,12 @@ namespace ngcore
   {
     std::cerr << "Collecting backtrace..." << std::endl;
     std::stringstream result;
-    void *bt[1024];
+    void *bt[100];
     int bt_size;
     char **bt_syms;
     int i;
 
-    bt_size = backtrace(bt, 1024);
+    bt_size = backtrace(bt, 100);
     bt_syms = backtrace_symbols(bt, bt_size);
     Dl_info info;
     for (i = 1; i < bt_size-1; i++)
diff --git a/tests/pytest/results.json b/tests/pytest/results.json
index ec0753f3..67022c1a 100644
--- a/tests/pytest/results.json
+++ b/tests/pytest/results.json
@@ -293,33 +293,33 @@
         },
         {
             "angles_tet": [
-                12.942,
-                162.28
+                15.271,
+                159.02
             ],
             "angles_trig": [
-                10.449,
-                154.86
+                14.076,
+                146.64
             ],
             "ne1d": 32,
             "ne2d": 220,
-            "ne3d": 651,
-            "quality_histogram": "[0, 0, 0, 7, 5, 23, 31, 53, 53, 64, 49, 37, 45, 59, 49, 52, 48, 45, 23, 8]",
-            "total_badness": 1234.956476
+            "ne3d": 642,
+            "quality_histogram": "[0, 0, 0, 0, 4, 22, 41, 45, 52, 48, 42, 42, 63, 64, 57, 33, 39, 45, 37, 8]",
+            "total_badness": 1182.99704
         },
         {
             "angles_tet": [
-                2.7343,
-                173.79
+                2.7569,
+                173.39
             ],
             "angles_trig": [
-                8.7414,
-                158.73
+                7.6422,
+                156.83
             ],
             "ne1d": 48,
             "ne2d": 428,
-            "ne3d": 868,
-            "quality_histogram": "[0, 7, 36, 34, 44, 67, 67, 67, 87, 94, 61, 81, 55, 45, 46, 23, 20, 18, 15, 1]",
-            "total_badness": 2363.7016426
+            "ne3d": 811,
+            "quality_histogram": "[0, 8, 32, 34, 32, 51, 46, 63, 86, 81, 63, 72, 59, 44, 46, 24, 27, 24, 15, 4]",
+            "total_badness": 2131.9115363
         },
         {
             "angles_tet": [
@@ -471,9 +471,9 @@
             ],
             "ne1d": 262,
             "ne2d": 726,
-            "ne3d": 2187,
-            "quality_histogram": "[0, 4, 11, 35, 76, 102, 132, 102, 83, 52, 60, 80, 114, 196, 255, 258, 257, 227, 114, 29]",
-            "total_badness": 4157.6373393
+            "ne3d": 2186,
+            "quality_histogram": "[0, 4, 11, 34, 76, 101, 133, 102, 83, 52, 61, 79, 114, 196, 255, 258, 257, 227, 114, 29]",
+            "total_badness": 4154.7434704
         },
         {
             "angles_tet": [
@@ -507,8 +507,8 @@
         },
         {
             "angles_tet": [
-                5.1036,
-                168.02
+                5.1018,
+                167.98
             ],
             "angles_trig": [
                 12.696,
@@ -516,9 +516,9 @@
             ],
             "ne1d": 262,
             "ne2d": 726,
-            "ne3d": 2083,
-            "quality_histogram": "[0, 2, 6, 20, 50, 80, 113, 89, 78, 45, 36, 73, 98, 176, 267, 270, 286, 225, 135, 34]",
-            "total_badness": 3674.0021566
+            "ne3d": 2080,
+            "quality_histogram": "[0, 2, 6, 20, 50, 80, 113, 90, 72, 47, 38, 75, 95, 179, 262, 272, 286, 224, 135, 34]",
+            "total_badness": 3667.9320382
         },
         {
             "angles_tet": [
@@ -854,24 +854,24 @@
             ],
             "ne1d": 24,
             "ne2d": 66,
-            "ne3d": 76,
-            "quality_histogram": "[0, 0, 0, 0, 0, 0, 2, 1, 6, 10, 0, 4, 5, 8, 5, 4, 10, 19, 2, 0]",
-            "total_badness": 119.18652785
+            "ne3d": 71,
+            "quality_histogram": "[0, 0, 0, 0, 0, 0, 2, 2, 4, 9, 1, 5, 3, 3, 3, 2, 9, 24, 3, 1]",
+            "total_badness": 108.79228828
         },
         {
             "angles_tet": [
-                17.07,
-                156.8
+                14.383,
+                158.73
             ],
             "angles_trig": [
-                18.547,
-                129.78
+                12.296,
+                144.06
             ],
             "ne1d": 36,
             "ne2d": 152,
-            "ne3d": 425,
-            "quality_histogram": "[0, 0, 0, 0, 0, 2, 16, 28, 35, 41, 45, 44, 30, 38, 28, 28, 45, 18, 20, 7]",
-            "total_badness": 743.37290709
+            "ne3d": 515,
+            "quality_histogram": "[0, 0, 0, 1, 2, 12, 25, 45, 55, 55, 63, 44, 38, 41, 26, 30, 42, 16, 13, 7]",
+            "total_badness": 981.48109509
         },
         {
             "angles_tet": [
@@ -941,14 +941,14 @@
                 167.27
             ],
             "angles_trig": [
-                10.966,
+                10.973,
                 150.52
             ],
             "ne1d": 48,
             "ne2d": 142,
             "ne3d": 162,
-            "quality_histogram": "[0, 0, 2, 7, 26, 32, 17, 2, 0, 2, 0, 1, 4, 4, 6, 13, 15, 13, 18, 0]",
-            "total_badness": 438.06788961
+            "quality_histogram": "[0, 0, 2, 7, 26, 32, 17, 2, 0, 2, 0, 1, 2, 5, 6, 15, 15, 13, 17, 0]",
+            "total_badness": 437.74460755
         },
         {
             "angles_tet": [
@@ -1014,18 +1014,18 @@
         },
         {
             "angles_tet": [
-                3.5997,
-                172.04
+                4.2159,
+                171.02
             ],
             "angles_trig": [
-                6.8707,
-                163.48
+                7.6756,
+                159.68
             ],
             "ne1d": 0,
             "ne2d": 192,
-            "ne3d": 1007,
-            "quality_histogram": "[0, 29, 63, 130, 181, 138, 104, 73, 68, 45, 42, 28, 23, 29, 16, 12, 9, 9, 6, 2]",
-            "total_badness": 3930.5060123
+            "ne3d": 957,
+            "quality_histogram": "[0, 21, 76, 109, 128, 111, 100, 84, 77, 55, 62, 31, 32, 22, 10, 15, 8, 10, 4, 2]",
+            "total_badness": 3582.099151
         },
         {
             "angles_tet": [
@@ -1074,18 +1074,18 @@
         },
         {
             "angles_tet": [
-                23.713,
-                141.52
+                23.712,
+                141.53
             ],
             "angles_trig": [
-                27.222,
-                121.78
+                27.221,
+                120.25
             ],
             "ne1d": 0,
             "ne2d": 4236,
-            "ne3d": 37098,
-            "quality_histogram": "[0, 0, 0, 0, 0, 0, 0, 0, 1, 11, 43, 183, 472, 1416, 3234, 5627, 7717, 8927, 7206, 2261]",
-            "total_badness": 44647.422985
+            "ne3d": 37109,
+            "quality_histogram": "[0, 0, 0, 0, 0, 0, 0, 0, 1, 11, 43, 182, 476, 1429, 3220, 5619, 7718, 8934, 7209, 2267]",
+            "total_badness": 44660.376357
         }
     ],
     "ellipticcone.geo": [
@@ -1162,7 +1162,7 @@
             "ne2d": 3468,
             "ne3d": 13471,
             "quality_histogram": "[0, 0, 0, 0, 0, 0, 0, 8, 18, 67, 132, 305, 570, 999, 1594, 2335, 2604, 2480, 1787, 572]",
-            "total_badness": 17093.610487
+            "total_badness": 17093.610502
         },
         {
             "angles_tet": [
@@ -1175,9 +1175,9 @@
             ],
             "ne1d": 432,
             "ne2d": 9544,
-            "ne3d": 69860,
-            "quality_histogram": "[0, 0, 0, 0, 0, 0, 1, 7, 30, 69, 224, 646, 1567, 3678, 7012, 11245, 14665, 15510, 11805, 3401]",
-            "total_badness": 85646.633699
+            "ne3d": 69863,
+            "quality_histogram": "[0, 0, 0, 0, 0, 0, 1, 7, 30, 69, 222, 646, 1562, 3675, 7035, 11242, 14646, 15515, 11810, 3403]",
+            "total_badness": 85648.446235
         }
     ],
     "ellipticcyl.geo": [
@@ -1367,18 +1367,18 @@
     "frame.step": [
         {
             "angles_tet": [
-                2.6027,
+                2.6064,
                 169.75
             ],
             "angles_trig": [
                 1.845,
-                158.55
+                168.38
             ],
             "ne1d": 12598,
             "ne2d": 39662,
-            "ne3d": 202894,
-            "quality_histogram": "[2, 10, 7, 6, 13, 48, 112, 309, 901, 2108, 4329, 8335, 14659, 22946, 29480, 33978, 34111, 28568, 18133, 4839]",
-            "total_badness": 271396.36361
+            "ne3d": 202536,
+            "quality_histogram": "[2, 10, 7, 6, 13, 37, 104, 289, 845, 2026, 4332, 8423, 14609, 22851, 29589, 34182, 33768, 28703, 18049, 4691]",
+            "total_badness": 270815.65433
         },
         {
             "angles_tet": [
@@ -1391,24 +1391,24 @@
             ],
             "ne1d": 5988,
             "ne2d": 11102,
-            "ne3d": 29168,
-            "quality_histogram": "[3, 4, 7, 13, 24, 42, 119, 241, 722, 989, 1571, 2460, 3055, 3939, 4323, 4223, 3360, 2411, 1347, 315]",
-            "total_badness": 43309.92559
+            "ne3d": 29144,
+            "quality_histogram": "[3, 4, 7, 13, 24, 39, 120, 238, 735, 977, 1562, 2454, 3050, 3952, 4320, 4203, 3345, 2437, 1347, 314]",
+            "total_badness": 43262.081817
         },
         {
             "angles_tet": [
-                2.1657,
+                2.1686,
                 174.11
             ],
             "angles_trig": [
-                2.2053,
+                1.6035,
                 174.13
             ],
             "ne1d": 9622,
-            "ne2d": 23964,
-            "ne3d": 80728,
-            "quality_histogram": "[1, 16, 3, 20, 18, 44, 94, 232, 517, 1099, 2434, 4593, 7471, 10296, 12656, 13142, 11844, 9162, 5660, 1426]",
-            "total_badness": 111694.25744
+            "ne2d": 23960,
+            "ne3d": 80378,
+            "quality_histogram": "[1, 16, 3, 18, 17, 40, 88, 211, 453, 1061, 2481, 4518, 7443, 10609, 12618, 12976, 11798, 9193, 5456, 1378]",
+            "total_badness": 111174.13725
         }
     ],
     "hinge.stl": [
@@ -1438,9 +1438,9 @@
             ],
             "ne1d": 298,
             "ne2d": 610,
-            "ne3d": 832,
-            "quality_histogram": "[0, 0, 1, 11, 8, 3, 21, 17, 42, 47, 76, 91, 104, 97, 92, 86, 57, 48, 27, 4]",
-            "total_badness": 1432.6971804
+            "ne3d": 817,
+            "quality_histogram": "[0, 0, 1, 11, 8, 5, 21, 16, 43, 41, 72, 88, 107, 100, 84, 87, 52, 50, 28, 3]",
+            "total_badness": 1409.8967045
         },
         {
             "angles_tet": [
@@ -1498,9 +1498,9 @@
             ],
             "ne1d": 1862,
             "ne2d": 19474,
-            "ne3d": 136621,
-            "quality_histogram": "[0, 0, 0, 0, 0, 0, 0, 1, 14, 55, 291, 892, 2633, 6517, 13067, 21320, 29000, 31114, 23880, 7837]",
-            "total_badness": 166165.22295
+            "ne3d": 136597,
+            "quality_histogram": "[0, 0, 0, 0, 0, 0, 0, 1, 12, 54, 288, 870, 2618, 6513, 13052, 21346, 28986, 31108, 23898, 7851]",
+            "total_badness": 166108.75934
         }
     ],
     "lense.in2d": [
@@ -1765,7 +1765,7 @@
             "ne2d": 1198,
             "ne3d": 5066,
             "quality_histogram": "[0, 0, 11, 118, 169, 57, 61, 111, 95, 184, 293, 368, 508, 651, 617, 577, 496, 429, 246, 75]",
-            "total_badness": 8799.2034124
+            "total_badness": 8799.2034431
         },
         {
             "angles_tet": [
@@ -1795,7 +1795,7 @@
             "ne2d": 830,
             "ne3d": 2488,
             "quality_histogram": "[0, 0, 3, 37, 71, 155, 161, 102, 158, 211, 284, 276, 249, 203, 195, 139, 108, 79, 42, 15]",
-            "total_badness": 5146.3098742
+            "total_badness": 5146.3098744
         },
         {
             "angles_tet": [
@@ -1839,8 +1839,8 @@
             "ne1d": 418,
             "ne2d": 5968,
             "ne3d": 101047,
-            "quality_histogram": "[0, 0, 0, 0, 0, 1, 5, 8, 52, 104, 356, 989, 2551, 5548, 10164, 16045, 20725, 22252, 16919, 5328]",
-            "total_badness": 124081.8709
+            "quality_histogram": "[0, 0, 0, 0, 0, 1, 5, 8, 52, 104, 356, 989, 2551, 5548, 10164, 16045, 20725, 22251, 16920, 5328]",
+            "total_badness": 124081.88321
         }
     ],
     "ortho.geo": [
@@ -1964,7 +1964,7 @@
             "ne2d": 288,
             "ne3d": 528,
             "quality_histogram": "[0, 0, 0, 2, 4, 2, 4, 3, 16, 24, 36, 41, 54, 70, 68, 73, 59, 47, 24, 1]",
-            "total_badness": 813.79298259
+            "total_badness": 813.79298254
         },
         {
             "angles_tet": [
@@ -2024,39 +2024,39 @@
             ],
             "ne1d": 344,
             "ne2d": 1136,
-            "ne3d": 3267,
-            "quality_histogram": "[0, 0, 0, 0, 1, 4, 15, 26, 55, 93, 181, 259, 350, 454, 454, 445, 400, 295, 185, 50]",
-            "total_badness": 4760.8393552
+            "ne3d": 3263,
+            "quality_histogram": "[0, 0, 0, 0, 1, 4, 15, 26, 53, 90, 178, 259, 351, 445, 457, 447, 406, 297, 185, 49]",
+            "total_badness": 4746.5378667
         },
         {
             "angles_tet": [
-                9.7531,
-                164.55
+                9.7417,
+                164.57
             ],
             "angles_trig": [
-                12.309,
-                141.65
+                12.303,
+                141.6
             ],
             "ne1d": 160,
             "ne2d": 286,
-            "ne3d": 585,
-            "quality_histogram": "[0, 0, 0, 2, 9, 14, 21, 29, 35, 70, 61, 78, 66, 39, 36, 37, 36, 33, 14, 5]",
-            "total_badness": 1085.7831583
+            "ne3d": 568,
+            "quality_histogram": "[0, 0, 0, 2, 9, 12, 20, 25, 31, 69, 59, 78, 60, 40, 38, 40, 34, 33, 14, 4]",
+            "total_badness": 1044.7873254
         },
         {
             "angles_tet": [
-                10.104,
-                163.38
+                13.063,
+                161.0
             ],
             "angles_trig": [
-                14.246,
+                16.741,
                 141.37
             ],
             "ne1d": 232,
             "ne2d": 598,
-            "ne3d": 1538,
-            "quality_histogram": "[0, 0, 0, 2, 14, 22, 43, 65, 85, 110, 147, 167, 147, 176, 174, 120, 115, 80, 58, 13]",
-            "total_badness": 2657.5718121
+            "ne3d": 1523,
+            "quality_histogram": "[0, 0, 0, 1, 7, 20, 34, 48, 65, 111, 135, 155, 165, 189, 171, 134, 132, 89, 52, 15]",
+            "total_badness": 2538.6647915
         },
         {
             "angles_tet": [
@@ -2069,9 +2069,9 @@
             ],
             "ne1d": 344,
             "ne2d": 1136,
-            "ne3d": 3229,
-            "quality_histogram": "[0, 0, 0, 0, 1, 4, 13, 23, 46, 81, 150, 228, 330, 443, 467, 439, 439, 323, 180, 62]",
-            "total_badness": 4634.0843144
+            "ne3d": 3233,
+            "quality_histogram": "[0, 0, 0, 0, 1, 4, 12, 23, 48, 81, 149, 226, 335, 430, 473, 436, 439, 333, 186, 57]",
+            "total_badness": 4637.4815537
         },
         {
             "angles_tet": [
@@ -2090,7 +2090,7 @@
         },
         {
             "angles_tet": [
-                21.559,
+                21.56,
                 145.28
             ],
             "angles_trig": [
@@ -2099,9 +2099,9 @@
             ],
             "ne1d": 820,
             "ne2d": 6226,
-            "ne3d": 68687,
-            "quality_histogram": "[0, 0, 0, 0, 0, 0, 0, 0, 11, 49, 183, 506, 1537, 3645, 6895, 10992, 14335, 15196, 11647, 3691]",
-            "total_badness": 84001.076915
+            "ne3d": 68692,
+            "quality_histogram": "[0, 0, 0, 0, 0, 0, 0, 0, 11, 49, 185, 510, 1531, 3657, 6895, 10997, 14320, 15199, 11644, 3694]",
+            "total_badness": 84012.009025
         }
     ],
     "plane.stl": [
@@ -2116,9 +2116,9 @@
             ],
             "ne1d": 890,
             "ne2d": 2626,
-            "ne3d": 8294,
-            "quality_histogram": "[4, 17, 28, 31, 56, 53, 52, 65, 101, 174, 258, 406, 664, 825, 1173, 1279, 1268, 1067, 604, 169]",
-            "total_badness": 12467.41506
+            "ne3d": 8292,
+            "quality_histogram": "[4, 17, 28, 31, 55, 55, 51, 64, 101, 174, 260, 405, 664, 824, 1173, 1279, 1268, 1066, 604, 169]",
+            "total_badness": 12461.942534
         },
         {
             "angles_tet": [
@@ -2131,9 +2131,9 @@
             ],
             "ne1d": 570,
             "ne2d": 1202,
-            "ne3d": 1838,
-            "quality_histogram": "[2, 29, 38, 59, 64, 78, 101, 142, 154, 179, 190, 164, 155, 136, 119, 81, 72, 47, 24, 4]",
-            "total_badness": 4626.8081476
+            "ne3d": 1831,
+            "quality_histogram": "[2, 29, 38, 60, 65, 77, 105, 141, 152, 176, 189, 161, 156, 135, 118, 80, 71, 48, 24, 4]",
+            "total_badness": 4620.6249923
         },
         {
             "angles_tet": [
@@ -2161,9 +2161,9 @@
             ],
             "ne1d": 956,
             "ne2d": 2828,
-            "ne3d": 8553,
-            "quality_histogram": "[3, 9, 39, 50, 44, 51, 59, 58, 82, 134, 194, 341, 553, 831, 1187, 1355, 1471, 1204, 712, 176]",
-            "total_badness": 12579.823603
+            "ne3d": 8549,
+            "quality_histogram": "[3, 9, 39, 50, 44, 51, 59, 59, 82, 133, 195, 336, 560, 830, 1174, 1357, 1462, 1224, 706, 176]",
+            "total_badness": 12575.367761
         },
         {
             "angles_tet": [
@@ -2176,9 +2176,9 @@
             ],
             "ne1d": 1554,
             "ne2d": 6372,
-            "ne3d": 31632,
-            "quality_histogram": "[2, 8, 13, 8, 24, 53, 51, 72, 93, 187, 306, 631, 1287, 2372, 3831, 5340, 6171, 5877, 4151, 1155]",
-            "total_badness": 40867.972596
+            "ne3d": 31639,
+            "quality_histogram": "[2, 8, 13, 8, 24, 53, 51, 73, 92, 189, 305, 634, 1290, 2378, 3824, 5340, 6177, 5876, 4146, 1156]",
+            "total_badness": 40882.230035
         },
         {
             "angles_tet": [
@@ -2192,8 +2192,8 @@
             "ne1d": 2992,
             "ne2d": 23322,
             "ne3d": 281660,
-            "quality_histogram": "[4, 9, 10, 11, 11, 22, 32, 66, 101, 250, 741, 2131, 5596, 13622, 27762, 44430, 59896, 63856, 48363, 14747]",
-            "total_badness": 344296.42922
+            "quality_histogram": "[4, 9, 10, 11, 11, 22, 32, 66, 101, 250, 741, 2131, 5596, 13622, 27762, 44429, 59897, 63856, 48363, 14747]",
+            "total_badness": 344296.42526
         }
     ],
     "revolution.geo": [
@@ -2209,8 +2209,8 @@
             "ne1d": 320,
             "ne2d": 3110,
             "ne3d": 8379,
-            "quality_histogram": "[0, 0, 0, 0, 0, 0, 3, 27, 91, 210, 452, 680, 983, 1089, 1149, 1165, 1083, 812, 518, 117]",
-            "total_badness": 11964.310541
+            "quality_histogram": "[0, 0, 0, 0, 0, 0, 3, 27, 91, 210, 453, 679, 983, 1088, 1150, 1165, 1083, 812, 518, 117]",
+            "total_badness": 11964.310211
         },
         {
             "angles_tet": [
@@ -2229,18 +2229,18 @@
         },
         {
             "angles_tet": [
-                15.455,
+                15.408,
                 145.04
             ],
             "angles_trig": [
-                14.648,
+                14.362,
                 134.93
             ],
             "ne1d": 240,
             "ne2d": 1830,
-            "ne3d": 3862,
-            "quality_histogram": "[0, 0, 0, 0, 0, 0, 2, 32, 67, 154, 280, 412, 508, 495, 499, 430, 398, 332, 213, 40]",
-            "total_badness": 5742.111994
+            "ne3d": 3864,
+            "quality_histogram": "[0, 0, 0, 0, 0, 0, 3, 31, 69, 157, 283, 417, 507, 494, 513, 422, 403, 319, 206, 40]",
+            "total_badness": 5758.3866216
         },
         {
             "angles_tet": [
@@ -2255,7 +2255,7 @@
             "ne2d": 3110,
             "ne3d": 8253,
             "quality_histogram": "[0, 0, 0, 0, 0, 0, 2, 13, 47, 138, 333, 624, 839, 1047, 1151, 1187, 1166, 945, 608, 153]",
-            "total_badness": 11468.849016
+            "total_badness": 11468.848993
         },
         {
             "angles_tet": [
@@ -2430,63 +2430,63 @@
     "shaft.geo": [
         {
             "angles_tet": [
-                11.861,
-                162.65
+                11.152,
+                164.8
             ],
             "angles_trig": [
-                11.536,
-                151.09
+                13.065,
+                153.81
             ],
             "ne1d": 708,
             "ne2d": 1722,
-            "ne3d": 2888,
-            "quality_histogram": "[0, 0, 0, 5, 22, 31, 50, 68, 109, 164, 278, 418, 327, 290, 256, 301, 246, 188, 106, 29]",
-            "total_badness": 4780.7450312
+            "ne3d": 2786,
+            "quality_histogram": "[0, 0, 1, 6, 23, 42, 45, 55, 94, 140, 280, 392, 314, 282, 250, 301, 240, 180, 105, 36]",
+            "total_badness": 4609.6986746
         },
         {
             "angles_tet": [
-                14.99,
-                157.83
+                14.566,
+                156.38
             ],
             "angles_trig": [
                 17.101,
-                121.63
+                120.3
             ],
             "ne1d": 410,
             "ne2d": 606,
-            "ne3d": 837,
-            "quality_histogram": "[0, 0, 0, 0, 0, 3, 0, 5, 21, 42, 43, 54, 83, 94, 118, 110, 89, 78, 51, 46]",
-            "total_badness": 1215.3787027
+            "ne3d": 870,
+            "quality_histogram": "[0, 0, 0, 0, 0, 3, 2, 5, 22, 36, 42, 53, 91, 101, 127, 131, 94, 85, 47, 31]",
+            "total_badness": 1263.6238885
         },
         {
             "angles_tet": [
-                8.4343,
-                167.31
+                9.5449,
+                167.3
             ],
             "angles_trig": [
-                10.596,
-                155.64
+                10.216,
+                148.27
             ],
             "ne1d": 510,
             "ne2d": 1004,
-            "ne3d": 2038,
-            "quality_histogram": "[0, 0, 4, 28, 43, 77, 101, 140, 143, 120, 135, 161, 142, 194, 216, 184, 195, 85, 56, 14]",
-            "total_badness": 3926.3340848
+            "ne3d": 2013,
+            "quality_histogram": "[0, 0, 2, 11, 38, 79, 90, 131, 106, 114, 113, 172, 155, 218, 217, 207, 190, 98, 58, 14]",
+            "total_badness": 3713.7502435
         },
         {
             "angles_tet": [
-                14.303,
+                14.302,
                 162.65
             ],
             "angles_trig": [
-                15.347,
-                147.74
+                17.889,
+                130.85
             ],
             "ne1d": 708,
             "ne2d": 1722,
-            "ne3d": 2795,
-            "quality_histogram": "[0, 0, 0, 1, 2, 2, 18, 29, 64, 128, 269, 412, 331, 316, 289, 307, 277, 209, 109, 32]",
-            "total_badness": 4321.8306337
+            "ne3d": 2748,
+            "quality_histogram": "[0, 0, 0, 0, 5, 3, 17, 26, 54, 118, 266, 416, 341, 298, 267, 329, 256, 205, 110, 37]",
+            "total_badness": 4242.1246898
         },
         {
             "angles_tet": [
@@ -2982,7 +2982,7 @@
     "torus.geo": [
         {
             "angles_tet": [
-                16.896,
+                16.805,
                 152.81
             ],
             "angles_trig": [
@@ -2991,24 +2991,24 @@
             ],
             "ne1d": 0,
             "ne2d": 2534,
-            "ne3d": 5725,
-            "quality_histogram": "[0, 0, 0, 0, 0, 0, 3, 26, 89, 206, 394, 548, 658, 774, 820, 719, 629, 496, 275, 88]",
-            "total_badness": 8397.4026608
+            "ne3d": 5726,
+            "quality_histogram": "[0, 0, 0, 0, 0, 0, 3, 26, 89, 209, 392, 549, 656, 774, 819, 718, 633, 497, 273, 88]",
+            "total_badness": 8399.0875048
         },
         {
             "angles_tet": [
-                1.6289,
-                174.98
+                1.8454,
+                174.07
             ],
             "angles_trig": [
-                4.715,
-                167.36
+                3.7635,
+                166.86
             ],
             "ne1d": 0,
             "ne2d": 692,
-            "ne3d": 3327,
-            "quality_histogram": "[18, 376, 565, 458, 423, 303, 290, 219, 148, 131, 120, 79, 58, 39, 36, 20, 15, 21, 4, 4]",
-            "total_badness": 18184.120092
+            "ne3d": 3289,
+            "quality_histogram": "[22, 357, 521, 490, 397, 337, 276, 212, 158, 125, 86, 85, 59, 35, 37, 25, 30, 23, 11, 3]",
+            "total_badness": 17806.714921
         },
         {
             "angles_tet": [
@@ -3036,9 +3036,9 @@
             ],
             "ne1d": 0,
             "ne2d": 2534,
-            "ne3d": 5622,
-            "quality_histogram": "[0, 0, 0, 0, 0, 0, 1, 7, 30, 146, 290, 432, 650, 749, 830, 788, 702, 543, 347, 107]",
-            "total_badness": 7969.2642686
+            "ne3d": 5613,
+            "quality_histogram": "[0, 0, 0, 0, 0, 0, 1, 7, 32, 146, 287, 439, 640, 748, 826, 786, 707, 539, 349, 106]",
+            "total_badness": 7957.8333725
         },
         {
             "angles_tet": [
@@ -3051,9 +3051,9 @@
             ],
             "ne1d": 0,
             "ne2d": 5894,
-            "ne3d": 25266,
-            "quality_histogram": "[0, 0, 0, 0, 0, 0, 0, 0, 11, 45, 117, 415, 859, 1688, 2866, 4124, 4942, 5200, 3815, 1184]",
-            "total_badness": 31475.174764
+            "ne3d": 25261,
+            "quality_histogram": "[0, 0, 0, 0, 0, 0, 0, 0, 11, 44, 119, 414, 855, 1696, 2860, 4123, 4940, 5200, 3813, 1186]",
+            "total_badness": 31467.735079
         },
         {
             "angles_tet": [
@@ -3160,7 +3160,7 @@
             "ne2d": 10042,
             "ne3d": 84837,
             "quality_histogram": "[0, 0, 0, 0, 0, 3, 55, 1435, 719, 373, 691, 1186, 2492, 5459, 8935, 13171, 16437, 16966, 12825, 4090]",
-            "total_badness": 108583.90758
+            "total_badness": 108583.90765
         }
     ],
     "twobricks.geo": [
@@ -3252,7 +3252,7 @@
             "ne2d": 346,
             "ne3d": 595,
             "quality_histogram": "[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 23, 40, 55, 95, 101, 105, 99, 60, 8]",
-            "total_badness": 777.63273621
+            "total_badness": 777.63275563
         }
     ],
     "twocubes.geo": [
@@ -3344,7 +3344,7 @@
             "ne2d": 346,
             "ne3d": 595,
             "quality_histogram": "[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 23, 40, 55, 95, 101, 105, 99, 60, 8]",
-            "total_badness": 777.63273621
+            "total_badness": 777.63275563
         }
     ],
     "twocyl.geo": [
@@ -3365,33 +3365,33 @@
         },
         {
             "angles_tet": [
-                18.424,
+                18.404,
                 153.38
             ],
             "angles_trig": [
-                27.664,
+                26.007,
                 121.51
             ],
             "ne1d": 68,
             "ne2d": 100,
-            "ne3d": 152,
-            "quality_histogram": "[0, 0, 0, 0, 0, 0, 2, 2, 5, 6, 12, 11, 10, 14, 22, 19, 18, 23, 4, 4]",
-            "total_badness": 226.47203657
+            "ne3d": 150,
+            "quality_histogram": "[0, 0, 0, 0, 0, 0, 2, 2, 4, 6, 12, 12, 8, 13, 24, 18, 18, 23, 4, 4]",
+            "total_badness": 222.6797729
         },
         {
             "angles_tet": [
-                10.647,
-                163.92
+                12.34,
+                161.32
             ],
             "angles_trig": [
-                11.415,
-                146.97
+                12.084,
+                152.05
             ],
             "ne1d": 102,
             "ne2d": 238,
-            "ne3d": 548,
-            "quality_histogram": "[0, 0, 0, 5, 10, 19, 40, 65, 83, 49, 39, 31, 25, 38, 34, 37, 44, 20, 7, 2]",
-            "total_badness": 1137.6676071
+            "ne3d": 497,
+            "quality_histogram": "[0, 0, 0, 2, 11, 31, 40, 56, 65, 43, 34, 21, 26, 25, 30, 31, 43, 28, 8, 3]",
+            "total_badness": 1042.5778658
         },
         {
             "angles_tet": [
diff --git a/tests/pytest/test_tutorials.py b/tests/pytest/test_tutorials.py
index 6f7ae822..90bccc3f 100644
--- a/tests/pytest/test_tutorials.py
+++ b/tests/pytest/test_tutorials.py
@@ -41,8 +41,8 @@ def checkData(mesh, mp, ref):
     assert ref['ne3d'] == data['ne3d']
     assert json.loads(ref['quality_histogram']) == pytest.approx(json.loads(data['quality_histogram']), abs=1, rel=0.4)
     assert ref['total_badness'] == pytest.approx(data['total_badness'], rel=1e-5)
-    assert ref['angles_trig'] == pytest.approx(data['angles_trig'], rel=1e-5)
-    assert ref['angles_tet'] == pytest.approx(data['angles_tet'], rel=1e-5)
+    assert ref['angles_trig'] == pytest.approx(data['angles_trig'], rel=1e-4)
+    assert ref['angles_tet'] == pytest.approx(data['angles_tet'], rel=1e-4)
 
 # get tutorials
 def getFiles(fileEnding):