matteo@matteo-computer:~/lavori/QGIS/build-qgis3$ gdb -ex r --args /usr/bin/python3 /home/matteo/lavori/QGIS/QGIS/python/plugins/processing/tests/QgisAlgorithmsTest.py
GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.04) 7.11.1
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Reading symbols from /usr/bin/python3...Reading symbols from /usr/lib/debug/.build-id/49/562bd36cdc6d881700998330b1490e432e1382.debug...done.
done.
Starting program: /usr/bin/python3 /home/matteo/lavori/QGIS/QGIS/python/plugins/processing/tests/QgisAlgorithmsTest.py
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffc9eb5700 (LWP 7909)]
[New Thread 0x7fffbed4f700 (LWP 7910)]
[New Thread 0x7fffbda00700 (LWP 7911)]
Application state:
QGIS_PREFIX_PATH env var:
Prefix:     /usr
Plugin Path:        /usr/lib/qgis/plugins
Package Data Path:  /usr/share/qgis
Active Theme Name:
Active Theme Path:  /home/matteo/.qgis3///themes//icons/
Default Theme Path: :/images/themes/default/
SVG Search Paths:   /usr/share/qgis/svg/
        /home/matteo/.qgis3//svg/
User DB Path:   /usr/share/qgis/resources/qgis.db
Auth DB Path:   /home/matteo/.qgis3//qgis-auth.db

.(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
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F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
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F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
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F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
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F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
F(1): Failed to load : The shared library was not found.
(1): Failed to load : The shared library was not found.
(1): Failed to load : The shared library was not found.
(1): Failed to load : The shared library was not found.
(1): Failed to load : The shared library was not found.

Thread 1 "python3" received signal SIGSEGV, Segmentation fault.
0x00007ffff04df00a in QExplicitlySharedDataPointer<QgsCoordinateReferenceSystemPrivate>::QExplicitlySharedDataPointer(QExplicitlySharedDataPointer<QgsCoordinateReferenceSystemPrivate> const&) () from /home/matteo/lavori/QGIS/build-qgis3/output/lib/libqgis_core.so.2.99.0
(gdb)