stavolta ho aperto console e ho copiato dall'apertura a quando l'ho chiuso perché si è bloccato:
May 26 20:13:33 iMac-di-apple.local Safari[16241]: CGContextGetCTM: invalid context 0x0
May 26 20:13:33 iMac-di-apple.local Safari[16241]: CGContextGetDefaultUserSpaceToDeviceSpaceTransform: invalid context 0x0
May 26 20:13:33 iMac-di-apple.local Safari[16241]: CGContextGetCTM: invalid context 0x0
May 26 20:13:33 iMac-di-apple.local Safari[16241]: CGContextGetDefaultUserSpaceToDeviceSpaceTransform: invalid context 0x0
May 26 20:14:43 iMac-di-apple.local com.apple.SecurityServer[15]: Session 100189 created
May 26 20:15:18 iMac-di-apple.local Safari[16241]: CGContextClipToRect: invalid context 0x0
May 26 20:15:51 iMac-di-apple.local com.apple.ShareKitHelper[16142]: --warning: [ShareKit-XPC] Received XPC_ERROR_CONNECTION_INVALID
May 26 20:15:51 iMac-di-apple.local com.apple.ShareKitHelper[16142]: --warning: [ShareKit-XPC] connectionWithClientInterrupted
May 26 20:15:51 iMac-di-apple.local com.apple.ShareKitHelper[16142]: --warning: [ShareKit] Cancel UI for running services with Client PID: 16241
May 26 20:15:51 iMac-di-apple.local SearchProtection[234]: [SFOnProcEvent] called because pid (16241) has stopped. This is a great time to sync settings
May 26 23:46:15 iMac-di-apple.local com.apple.SecurityServer[15]: Killing auth hosts
May 26 23:46:15 iMac-di-apple.local com.apple.SecurityServer[15]: Session 100139 destroyed
May 26 23:46:15 iMac-di-apple.local com.apple.SecurityServer[15]: Session 100203 created
May 26 23:46:23 iMac-di-apple.local SearchProtection[234]: [SFOnFileEvent] Safari is running (16709). Will watch it's death
May 26 23:46:38 iMac-di-apple.local coreaudiod[175]: Disabled automatic stack shots because audio IO is active
May 26 23:46:48 iMac-di-apple.local coreaudiod[175]: Enabled automatic stack shots because audio IO is inactive
May 26 23:47:54 iMac-di-apple.local SearchProtection[234]: [SFOnProcEvent] called because pid (16709) has stopped. This is a great time to sync settings