[Aptitude-devel] Bug#825707: aptitude: should not regard a package as removed when another package has a Provides on it

Vincent Lefevre vincent at vinc17.net
Tue Feb 4 13:58:25 GMT 2020


Control: found -1 0.8.12-1

This bug still occurs, and due to it, I can't upgrade automatically:
from the TUI, 'U' refuses to upgrade all packages. Ditto from the
command line with "aptitude safe-upgrade". I've attached the
pkgstates file (compressed).

And from the command line, by telling to upgrade gcc-9 explicitly:

cventin:~> aptitude install -s gcc-9
Reading package lists...
Building dependency tree...
Reading state information...
Reading extended state information...
Initializing package states...
Building tag database...
The following packages will be upgraded:
  cpp-9 gcc-9 gcc-9-base gcc-9-base:i386 libasan5 libgcc-9-dev 
6 packages upgraded, 0 newly installed, 0 to remove and 55 not upgraded.
Need to get 22.8 MB of archives. After unpacking 7168 B will be freed.
The following packages have unmet dependencies:
 lib32ubsan1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libx32itm1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 lib32stdc++6 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libx32quadmath0 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libobjc4 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libgfortran-9-dev : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
                     Depends: libgcc-9-dev (= 9.2.1-25) but 9.2.1-28 is to be installed
 lib32itm1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 lib32asan5 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 lib32gcc-9-dev : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libx32gcc1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libstdc++-9-dev : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
                   Depends: libgcc-9-dev (= 9.2.1-25) but 9.2.1-28 is to be installed
 libgcc1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libgcc1:i386 : Depends: gcc-9-base:i386 (= 9.2.1-25) but 9.2.1-28 is to be installed
 lib32gcc1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 gcc-9-multilib : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
                  Depends: gcc-9 (= 9.2.1-25) but 9.2.1-28 is to be installed
 g++-9 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
         Depends: gcc-9 (= 9.2.1-25) but 9.2.1-28 is to be installed
 libx32asan5 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libgfortran5 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 lib32gomp1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libobjc-9-dev : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
                 Depends: libgcc-9-dev (= 9.2.1-25) but 9.2.1-28 is to be installed
 gfortran-9 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
              Depends: gcc-9 (= 9.2.1-25) but 9.2.1-28 is to be installed
 lib32quadmath0 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libx32ubsan1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libx32gcc-9-dev : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libx32gomp1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libstdc++6 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libstdc++6:i386 : Depends: gcc-9-base:i386 (= 9.2.1-25) but 9.2.1-28 is to be installed
 lib32atomic1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libx32atomic1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libx32stdc++6 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
The following actions will resolve these dependencies:

     Keep the following packages at their current version:
1)     cpp-9 [9.2.1-25 (now, testing)]                    
2)     gcc-9 [9.2.1-25 (now, testing)]                    
3)     gcc-9-base [9.2.1-25 (now, testing)]               
4)     gcc-9-base:i386 [9.2.1-25 (now, testing)]          
5)     libasan5 [9.2.1-25 (now, testing)]                 
6)     libgcc-9-dev [9.2.1-25 (now, testing)]             

So, the default resolution is to keep gcc-9.

There is no such issue with apt:

cventin:~> apt install -s gcc-9
NOTE: This is only a simulation!
      apt needs root privileges for real execution.
      Keep also in mind that locking is deactivated,
      so don't depend on the relevance to the real current situation!
Reading package lists...
Building dependency tree...
Reading state information...
The following additional packages will be installed:
  cpp-9 g++-9 gcc-9-base gcc-9-base:i386 gcc-9-multilib gfortran-9 lib32asan5
  lib32atomic1 lib32gcc-9-dev lib32gcc-s1 lib32gcc1 lib32gomp1 lib32itm1
  lib32quadmath0 lib32stdc++6 lib32ubsan1 libasan5 libgcc-9-dev libgcc-s1:i386
  libgcc1 libgfortran-9-dev libgfortran5 libobjc-9-dev libobjc4
  libstdc++-9-dev libstdc++6 libstdc++6:i386 libx32asan5 libx32atomic1
  libx32gcc-9-dev libx32gcc-s1 libx32gcc1 libx32gomp1 libx32itm1
  libx32quadmath0 libx32stdc++6 libx32ubsan1
Suggested packages:
  g++-9-multilib gfortran-9-multilib gfortran-9-doc libcoarrays-dev
  libstdc++-9-doc
The following packages will be REMOVED:
  libgcc1:i386
The following NEW packages will be installed:
  lib32gcc-s1 libgcc-s1:i386 libx32gcc-s1
The following packages will be upgraded:
  cpp-9 g++-9 gcc-9 gcc-9-base gcc-9-base:i386 gcc-9-multilib gfortran-9
  lib32asan5 lib32atomic1 lib32gcc-9-dev lib32gcc1 lib32gomp1 lib32itm1
  lib32quadmath0 lib32stdc++6 lib32ubsan1 libasan5 libgcc-9-dev libgcc1
  libgfortran-9-dev libgfortran5 libobjc-9-dev libobjc4 libstdc++-9-dev
  libstdc++6 libstdc++6:i386 libx32asan5 libx32atomic1 libx32gcc-9-dev
  libx32gcc1 libx32gomp1 libx32itm1 libx32quadmath0 libx32stdc++6 libx32ubsan1
35 upgraded, 3 newly installed, 1 to remove and 25 not upgraded.
Inst libgcc-s1:i386 (10-20200202-1 Debian:unstable [i386])
Remv libgcc1:i386 [1:9.2.1-25]
Inst libgcc1 [1:9.2.1-25] (1:10-20200202-1 Debian:unstable [amd64])
Conf libgcc1 (1:10-20200202-1 Debian:unstable [amd64])
Inst libstdc++6 [9.2.1-25] (10-20200202-1 Debian:unstable [amd64]) [libstdc++6:amd64 on libstdc++6:i386] [libstdc++6:i386 on libstdc++6:amd64] [libstdc++6:i386 ]
Inst libstdc++6:i386 [9.2.1-25] (10-20200202-1 Debian:unstable [i386])
Inst g++-9 [9.2.1-25] (9.2.1-28 Debian:unstable [amd64]) []
Inst gfortran-9 [9.2.1-25] (9.2.1-28 Debian:unstable [amd64]) []
Inst gcc-9-multilib [9.2.1-25] (9.2.1-28 Debian:unstable [amd64]) []
Inst gcc-9 [9.2.1-25] (9.2.1-28 Debian:unstable [amd64]) []
Inst cpp-9 [9.2.1-25] (9.2.1-28 Debian:unstable [amd64]) []
Inst libx32ubsan1 [9.2.1-25] (10-20200202-1 Debian:unstable [amd64]) []
Inst libx32stdc++6 [9.2.1-25] (10-20200202-1 Debian:unstable [amd64]) []
Inst libx32quadmath0 [9.2.1-25] (10-20200202-1 Debian:unstable [amd64]) []
Inst libx32itm1 [9.2.1-25] (10-20200202-1 Debian:unstable [amd64]) []
Inst libx32gomp1 [9.2.1-25] (10-20200202-1 Debian:unstable [amd64]) []
Inst libx32gcc1 [1:9.2.1-25] (1:10-20200202-1 Debian:unstable [amd64]) []
Inst libx32gcc-9-dev [9.2.1-25] (9.2.1-28 Debian:unstable [amd64]) []
Inst libx32atomic1 [9.2.1-25] (10-20200202-1 Debian:unstable [amd64]) []
Inst libx32asan5 [9.2.1-25] (9.2.1-28 Debian:unstable [amd64]) []
Inst libstdc++-9-dev [9.2.1-25] (9.2.1-28 Debian:unstable [amd64]) []
Inst libobjc4 [9.2.1-25] (10-20200202-1 Debian:unstable [amd64]) []
Inst libobjc-9-dev [9.2.1-25] (9.2.1-28 Debian:unstable [amd64]) []
Inst libgfortran5 [9.2.1-25] (10-20200202-1 Debian:unstable [amd64]) []
Inst libgfortran-9-dev [9.2.1-25] (9.2.1-28 Debian:unstable [amd64]) []
Inst libgcc-9-dev [9.2.1-25] (9.2.1-28 Debian:unstable [amd64]) []
Inst libasan5 [9.2.1-25] (9.2.1-28 Debian:unstable [amd64]) []
Inst lib32ubsan1 [9.2.1-25] (10-20200202-1 Debian:unstable [amd64]) []
Inst lib32stdc++6 [9.2.1-25] (10-20200202-1 Debian:unstable [amd64]) []
Inst lib32quadmath0 [9.2.1-25] (10-20200202-1 Debian:unstable [amd64]) []
Inst lib32itm1 [9.2.1-25] (10-20200202-1 Debian:unstable [amd64]) []
Inst lib32gomp1 [9.2.1-25] (10-20200202-1 Debian:unstable [amd64]) []
Inst lib32gcc1 [1:9.2.1-25] (1:10-20200202-1 Debian:unstable [amd64]) []
Inst lib32gcc-9-dev [9.2.1-25] (9.2.1-28 Debian:unstable [amd64]) []
Inst lib32atomic1 [9.2.1-25] (10-20200202-1 Debian:unstable [amd64]) []
Inst lib32asan5 [9.2.1-25] (9.2.1-28 Debian:unstable [amd64]) []
Inst gcc-9-base [9.2.1-25] (9.2.1-28 Debian:unstable [amd64]) [gcc-9-base:amd64 on gcc-9-base:i386] [gcc-9-base:i386 on gcc-9-base:amd64] [gcc-9-base:i386 ]
Inst gcc-9-base:i386 [9.2.1-25] (9.2.1-28 Debian:unstable [i386]) []
Inst lib32gcc-s1 (10-20200202-1 Debian:unstable [amd64]) []
Inst libx32gcc-s1 (10-20200202-1 Debian:unstable [amd64])
Conf libgcc-s1:i386 (10-20200202-1 Debian:unstable [i386])
Conf libstdc++6 (10-20200202-1 Debian:unstable [amd64])
Conf libstdc++6:i386 (10-20200202-1 Debian:unstable [i386])
Conf g++-9 (9.2.1-28 Debian:unstable [amd64])
Conf gfortran-9 (9.2.1-28 Debian:unstable [amd64])
Conf gcc-9-multilib (9.2.1-28 Debian:unstable [amd64])
Conf gcc-9 (9.2.1-28 Debian:unstable [amd64])
Conf cpp-9 (9.2.1-28 Debian:unstable [amd64])
Conf libx32ubsan1 (10-20200202-1 Debian:unstable [amd64])
Conf libx32stdc++6 (10-20200202-1 Debian:unstable [amd64])
Conf libx32quadmath0 (10-20200202-1 Debian:unstable [amd64])
Conf libx32itm1 (10-20200202-1 Debian:unstable [amd64])
Conf libx32gomp1 (10-20200202-1 Debian:unstable [amd64])
Conf libx32gcc1 (1:10-20200202-1 Debian:unstable [amd64])
Conf libx32gcc-9-dev (9.2.1-28 Debian:unstable [amd64])
Conf libx32atomic1 (10-20200202-1 Debian:unstable [amd64])
Conf libx32asan5 (9.2.1-28 Debian:unstable [amd64])
Conf libstdc++-9-dev (9.2.1-28 Debian:unstable [amd64])
Conf libobjc4 (10-20200202-1 Debian:unstable [amd64])
Conf libobjc-9-dev (9.2.1-28 Debian:unstable [amd64])
Conf libgfortran5 (10-20200202-1 Debian:unstable [amd64])
Conf libgfortran-9-dev (9.2.1-28 Debian:unstable [amd64])
Conf libgcc-9-dev (9.2.1-28 Debian:unstable [amd64])
Conf libasan5 (9.2.1-28 Debian:unstable [amd64])
Conf lib32ubsan1 (10-20200202-1 Debian:unstable [amd64])
Conf lib32stdc++6 (10-20200202-1 Debian:unstable [amd64])
Conf lib32quadmath0 (10-20200202-1 Debian:unstable [amd64])
Conf lib32itm1 (10-20200202-1 Debian:unstable [amd64])
Conf lib32gomp1 (10-20200202-1 Debian:unstable [amd64])
Conf lib32gcc1 (1:10-20200202-1 Debian:unstable [amd64])
Conf lib32gcc-9-dev (9.2.1-28 Debian:unstable [amd64])
Conf lib32atomic1 (10-20200202-1 Debian:unstable [amd64])
Conf lib32asan5 (9.2.1-28 Debian:unstable [amd64])
Conf gcc-9-base (9.2.1-28 Debian:unstable [amd64])
Conf gcc-9-base:i386 (9.2.1-28 Debian:unstable [i386])
Conf lib32gcc-s1 (10-20200202-1 Debian:unstable [amd64])
Conf libx32gcc-s1 (10-20200202-1 Debian:unstable [amd64])

Here, libgcc1:i386 is removed, but libgcc-s1:i386, which is installed
as a replacement, provides it (the package has been renamed):

Package: libgcc-s1
Source: gcc-10
Version: 10-20200202-1
Installed-Size: 134
Maintainer: Debian GCC Maintainers <debian-gcc at lists.debian.org>
Architecture: i386
Provides: libgcc1 (= 1:10-20200202-1)
[...]

If I tell aptitude to remove libgcc1:i386, this works:

cventin:~> aptitude install -s gcc-9 libgcc1:i386-
Reading package lists...
Building dependency tree...
Reading state information...
Reading extended state information...
Initializing package states...
Building tag database...
The following packages will be REMOVED:
  libgcc1:i386 
The following packages will be upgraded:
  cpp-9 gcc-9 gcc-9-base gcc-9-base:i386 libasan5 libgcc-9-dev 
6 packages upgraded, 0 newly installed, 1 to remove and 54 not upgraded.
Need to get 22.8 MB of archives. After unpacking 141 kB will be freed.
The following packages have unmet dependencies:
 lib32ubsan1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libx265-179:i386 : Depends: libgcc1:i386 (>= 1:4.2) but it is not going to be installed
 libsnappy1v5:i386 : Depends: libgcc1:i386 (>= 1:3.0) but it is not going to be installed
 libx32itm1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libllvm9:i386 : Depends: libgcc1:i386 (>= 1:4.2) but it is not going to be installed
 lib32stdc++6 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libx32quadmath0 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libobjc4 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libicu63:i386 : Depends: libgcc1:i386 (>= 1:7) but it is not going to be installed
 libgfortran-9-dev : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
                     Depends: libgcc-9-dev (= 9.2.1-25) but 9.2.1-28 is to be installed
 lib32itm1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 lib32asan5 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 lib32gcc-9-dev : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libc6:i386 : Depends: libgcc1:i386 but it is not going to be installed
 libx32gcc1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libgmpxx4ldbl:i386 : Depends: libgcc1:i386 (>= 1:3.0) but it is not going to be installed
 libvpx6:i386 : Depends: libgcc1:i386 (>= 1:4.2) but it is not going to be installed
 libstdc++-9-dev : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
                   Depends: libgcc-9-dev (= 9.2.1-25) but 9.2.1-28 is to be installed
 libgcc1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 lib32gcc1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 gcc-9-multilib : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
                  Depends: gcc-9 (= 9.2.1-25) but 9.2.1-28 is to be installed
 g++-9 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
         Depends: gcc-9 (= 9.2.1-25) but 9.2.1-28 is to be installed
 librsvg2-2:i386 : Depends: libgcc1:i386 (>= 1:4.2) but it is not going to be installed
 libx32asan5 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libgfortran5 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 lib32gomp1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libobjc-9-dev : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
                 Depends: libgcc-9-dev (= 9.2.1-25) but 9.2.1-28 is to be installed
 gfortran-9 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
              Depends: gcc-9 (= 9.2.1-25) but 9.2.1-28 is to be installed
 libglu1-mesa:i386 : Depends: libgcc1:i386 (>= 1:3.0) but it is not going to be installed
 lib32quadmath0 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libgl1-mesa-dri:i386 : Depends: libgcc1:i386 (>= 1:4.2) but it is not going to be installed
 libx32ubsan1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libx32gcc-9-dev : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libx32gomp1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libstdc++6 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libstdc++6:i386 : Depends: gcc-9-base:i386 (= 9.2.1-25) but 9.2.1-28 is to be installed
                   Depends: libgcc1:i386 (>= 1:4.2) but it is not going to be installed
 libz3-4:i386 : Depends: libgcc1:i386 (>= 1:7) but it is not going to be installed
 lib32atomic1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libx32atomic1 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
 libx32stdc++6 : Depends: gcc-9-base (= 9.2.1-25) but 9.2.1-28 is to be installed
The following actions will resolve these dependencies:

      Install the following packages:                                        
1)      lib32gcc-s1 [10-20200202-1 (unstable)]                               
2)      libgcc-s1:i386 [10-20200202-1 (unstable)]                            
3)      libx32gcc-s1 [10-20200202-1 (unstable)]                              

      Upgrade the following packages:                                        
4)      g++-9 [9.2.1-25 (now, testing) -> 9.2.1-28 (unstable)]               
5)      gcc-9-multilib [9.2.1-25 (now, testing) -> 9.2.1-28 (unstable)]      
6)      gfortran-9 [9.2.1-25 (now, testing) -> 9.2.1-28 (unstable)]          
7)      lib32asan5 [9.2.1-25 (now, testing) -> 9.2.1-28 (unstable)]          
8)      lib32atomic1 [9.2.1-25 (now, testing) -> 10-20200202-1 (unstable)]   
9)      lib32gcc-9-dev [9.2.1-25 (now, testing) -> 9.2.1-28 (unstable)]      
10)     lib32gcc1 [1:9.2.1-25 (now, testing) -> 1:10-20200202-1 (unstable)]  
11)     lib32gomp1 [9.2.1-25 (now, testing) -> 10-20200202-1 (unstable)]     
12)     lib32itm1 [9.2.1-25 (now, testing) -> 10-20200202-1 (unstable)]      
13)     lib32quadmath0 [9.2.1-25 (now, testing) -> 10-20200202-1 (unstable)] 
14)     lib32stdc++6 [9.2.1-25 (now, testing) -> 10-20200202-1 (unstable)]   
15)     lib32ubsan1 [9.2.1-25 (now, testing) -> 10-20200202-1 (unstable)]    
16)     libgcc1 [1:9.2.1-25 (now, testing) -> 1:10-20200202-1 (unstable)]    
17)     libgfortran-9-dev [9.2.1-25 (now, testing) -> 9.2.1-28 (unstable)]   
18)     libgfortran5 [9.2.1-25 (now, testing) -> 10-20200202-1 (unstable)]   
19)     libobjc-9-dev [9.2.1-25 (now, testing) -> 9.2.1-28 (unstable)]       
20)     libobjc4 [9.2.1-25 (now, testing) -> 10-20200202-1 (unstable)]       
21)     libstdc++-9-dev [9.2.1-25 (now, testing) -> 9.2.1-28 (unstable)]     
22)     libstdc++6 [9.2.1-25 (now, testing) -> 10-20200202-1 (unstable)]     
23)     libstdc++6:i386 [9.2.1-25 (now, testing) -> 10-20200202-1 (unstable)]
24)     libx32asan5 [9.2.1-25 (now, testing) -> 9.2.1-28 (unstable)]         
25)     libx32atomic1 [9.2.1-25 (now, testing) -> 10-20200202-1 (unstable)]  
26)     libx32gcc-9-dev [9.2.1-25 (now, testing) -> 9.2.1-28 (unstable)]     
27)     libx32gcc1 [1:9.2.1-25 (now, testing) -> 1:10-20200202-1 (unstable)] 
28)     libx32gomp1 [9.2.1-25 (now, testing) -> 10-20200202-1 (unstable)]    
29)     libx32itm1 [9.2.1-25 (now, testing) -> 10-20200202-1 (unstable)]     
30)     libx32quadmath0 [9.2.1-25 (now, testing) -> 10-20200202-1 (unstable)]
31)     libx32stdc++6 [9.2.1-25 (now, testing) -> 10-20200202-1 (unstable)]  
32)     libx32ubsan1 [9.2.1-25 (now, testing) -> 10-20200202-1 (unstable)]   

I recall that I use:

Aptitude::ProblemResolver::SolutionCost "safety, removals";

-- 
Vincent Lefèvre <vincent at vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
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