/home/antonio/MuseScore/libmscore/cmd.cpp:Ms::Score::startCmd: ===startCmd()
/home/antonio/MuseScore/libmscore/cmd.cpp:Ms::Score::expandVoice: expand voice: found Rest 4/4
/home/antonio/MuseScore/libmscore/edit.cpp:Ms::Score::addClone:  Rest at 480 1/4
/home/antonio/MuseScore/libmscore/edit.cpp:Ms::Score::addClone:  Rest at 960 1/2
/home/antonio/MuseScore/libmscore/score.cpp:Ms::Score::select: select element <Note> type 0(state 1) staff 0

/home/antonio/MuseScore/libmscore/layout.cpp:3629:37: runtime error: member call on null pointer of type 'struct System'
/home/antonio/MuseScore/libmscore/layout.cpp:3629:37: runtime error: member access within null pointer of type 'struct System'

ASAN:SIGSEGV
=================================================================
==7678==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x0000030e4f5e bp 0x7ffe909f3fe0 sp 0x7ffe909f3dc0 T0)
    #0 0x30e4f5d in Ms::Score::doLayoutRange(int, int) /home/antonio/MuseScore/libmscore/layout.cpp:3629
    #1 0x38365a0 in Ms::Score::update() /home/antonio/MuseScore/libmscore/cmd.cpp:203
    #2 0x3834dc7 in Ms::Score::endCmd(bool) /home/antonio/MuseScore/libmscore/cmd.cpp:173
    #3 0x2e9a75f in Ms::Score::cmdAddPitch(int, bool) /home/antonio/MuseScore/libmscore/edit.cpp:910
    #4 0xc7e881 in Ms::ScoreView::cmdAddPitch(int, bool) /home/antonio/MuseScore/mscore/scoreview.cpp:5379
    #5 0xbfdebb in Ms::ScoreView::cmd(QAction const*) /home/antonio/MuseScore/mscore/scoreview.cpp:2813
    #6 0x130de63 in Ms::MuseScore::cmd(QAction*, QString const&) /home/antonio/MuseScore/mscore/musescore.cpp:4716
    #7 0x12f604e in Ms::MuseScore::cmd(QAction*) /home/antonio/MuseScore/mscore/musescore.cpp:4288
    #8 0x272e93e in Ms::MuseScore::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) /home/antonio/MuseScore/build.debug/mscore/moc_musescore.cpp:825
    #9 0x7f9fc9c22cee in QMetaObject::activate(QObject*, int, int, void**) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Core.so.5+0x294cee)
    #10 0x275f290 in Ms::ScoreTab::actionTriggered(QAction*) /home/antonio/MuseScore/build.debug/mscore/moc_scoretab.cpp:182
    #11 0x275e061 in Ms::ScoreTab::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) /home/antonio/MuseScore/build.debug/mscore/moc_scoretab.cpp:95
    #12 0x7f9fc9c22cee in QMetaObject::activate(QObject*, int, int, void**) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Core.so.5+0x294cee)
    #13 0x7f9fd027148e in QActionGroup::triggered(QAction*) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5+0x15048e)
    #14 0x7f9fd0271f38  (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5+0x150f38)
    #15 0x7f9fc9c22cee in QMetaObject::activate(QObject*, int, int, void**) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Core.so.5+0x294cee)
    #16 0x7f9fd026d951 in QAction::triggered(bool) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5+0x14c951)
    #17 0x7f9fd02704ac in QAction::activate(QAction::ActionEvent) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5+0x14f4ac)
    #18 0x7f9fd0270e26 in QAction::event(QEvent*) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5+0x14fe26)
    #19 0x7f9fd027704b in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5+0x15604b)
    #20 0x7f9fd027b487 in QApplication::notify(QObject*, QEvent*) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Widgets.so.5+0x15a487)
    #21 0x7f9fc9bf9e7f in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Core.so.5+0x26be7f)
    #22 0x7f9fcab1e789 in QShortcutMap::dispatchEvent(QKeyEvent*) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Gui.so.5+0x125789)
    #23 0x7f9fcab1e873 in QShortcutMap::tryShortcut(QKeyEvent*) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Gui.so.5+0x125873)
    #24 0x7f9fcaadaa65 in QWindowSystemInterface::handleShortcutEvent(QWindow*, unsigned long, int, QFlags<Qt::KeyboardModifier>, unsigned int, unsigned int, unsigned int, QString const&, bool, unsigned short) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Gui.so.5+0xe1a65)
    #25 0x7f9fcaaef773 in QGuiApplicationPrivate::processKeyEvent(QWindowSystemInterfacePrivate::KeyEvent*) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Gui.so.5+0xf6773)
    #26 0x7f9fcaaf4464 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Gui.so.5+0xfb464)
    #27 0x7f9fcaad56a2 in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Gui.so.5+0xdc6a2)
    #28 0x7f9fbb32571f  (/home/antonio/Qt/5.6/gcc_64/plugins/platforms/../../lib/libQt5XcbQpa.so.5+0xad71f)
    #29 0x7f9fc5eb5e03 in g_main_context_dispatch (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x48e03)
    #30 0x7f9fc5eb6047  (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x49047)
    #31 0x7f9fc5eb60eb in g_main_context_iteration (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x490eb)
    #32 0x7f9fc9c494e6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Core.so.5+0x2bb4e6)
    #33 0x7f9fc9bf7ef9 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Core.so.5+0x269ef9)
    #34 0x7f9fc9bffd9c in QCoreApplication::exec() (/home/antonio/Qt/5.6/gcc_64/lib/libQt5Core.so.5+0x271d9c)
    #35 0x13288c2 in main /home/antonio/MuseScore/mscore/musescore.cpp:5562
    #36 0x7f9fc83abf44 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21f44)
    #37 0xb9a1c3  (/usr/local/bin/mscore+0xb9a1c3)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /home/antonio/MuseScore/libmscore/layout.cpp:3629 Ms::Score::doLayoutRange(int, int)
==7678==ABORTING