Can't partition free space after failed bootcamp installtion

This is the output of diskutil apfs list

APFS Containers (2 found)

|

+-- Container disk1 688E0710-3CE2-4D04-AE58-1274E71FAA24

|  ====================================================

|  APFS Container Reference:   disk1

|  Size (Capacity Ceiling):   541999996928 B (542.0 GB)

|  Minimum Size:         541999996928 B (542.0 GB)

|  Capacity In Use By Volumes:  407693279232 B (407.7 GB) (75.2% used)

|  Capacity Not Allocated:    134306717696 B (134.3 GB) (24.8% free)

|  |

|  +-< Physical Store disk0s2 835498E7-B6A7-40C7-AF05-06D2A1EE6103

|  |  -----------------------------------------------------------

|  |  APFS Physical Store Disk:  disk0s2

|  |  Size:            541999996928 B (542.0 GB)

|  |

|  +-> Volume disk1s1 C3C95B75-D6C9-4065-A43F-83A85C65E2BF

|  |  ---------------------------------------------------

|  |  APFS Volume Disk (Role):  disk1s1 (No specific role)

|  |  Name:           Macintosh HD (Case-insensitive)

|  |  Mount Point:        /

|  |  Capacity Consumed:     405915107328 B (405.9 GB)

|  |  FileVault:         No

|  |

|  +-> Volume disk1s2 35F2ADC0-90F2-4110-8410-7E16EA17B60D

|  |  ---------------------------------------------------

|  |  APFS Volume Disk (Role):  disk1s2 (Preboot)

|  |  Name:           Preboot (Case-insensitive)

|  |  Mount Point:        Not Mounted

|  |  Capacity Consumed:     24051712 B (24.1 MB)

|  |  FileVault:         No

|  |

|  +-> Volume disk1s3 CDCC2083-A891-40B5-B43D-35C6B75F52FD

|  |  ---------------------------------------------------

|  |  APFS Volume Disk (Role):  disk1s3 (Recovery)

|  |  Name:           Recovery (Case-insensitive)

|  |  Mount Point:        Not Mounted

|  |  Capacity Consumed:     515014656 B (515.0 MB)

|  |  FileVault:         No

|  |

|  +-> Volume disk1s4 1EDD4A63-1326-440D-BFC5-4D3C6747FEDD

|    ---------------------------------------------------

|    APFS Volume Disk (Role):  disk1s4 (VM)

|    Name:           VM (Case-insensitive)

|    Mount Point:        /private/var/vm

|    Capacity Consumed:     1073762304 B (1.1 GB)

|    FileVault:         No

|

+-- Container disk2 85D94C00-BE05-4B91-9F01-26C56444A7AC

  ====================================================

  APFS Container Reference:   disk2

  Size (Capacity Ceiling):   450106638336 B (450.1 GB)

  Minimum Size:         173281280 B (173.3 MB)

  Capacity In Use By Volumes:  157057024 B (157.1 MB) (0.0% used)

  Capacity Not Allocated:    449949581312 B (449.9 GB) (100.0% free)

  |

  +-< Physical Store disk0s3 DB8000F1-E050-4DF9-88EB-304B1F967A57

  |  -----------------------------------------------------------

  |  APFS Physical Store Disk:  disk0s3

  |  Size:            450106638336 B (450.1 GB)

  |

  +-> Volume disk2s1 8765D231-A568-482B-81B2-89F68E1B45FE

    ---------------------------------------------------

    APFS Volume Disk (Role):  disk2s1 (No specific role)

    Name:           Untitled (Case-insensitive)

    Mount Point:        /Volumes/Untitled

    Capacity Consumed:     839680 B (839.7 KB)

    FileVault:         No

Laras-MacBook-Pro:~ lara$ 

In disk utility, I can now see that there is the Macintosh HD as APFS volume and an Untitled volume "PCI-Express Internal Physical Volume • Mac OS Extended (Journaled)"

Okay, now we have this:

diskutil list

/dev/disk0 (internal):

  #:            TYPE NAME          SIZE    IDENTIFIER

  0:   GUID_partition_scheme             1.0 TB   disk0

  1:            EFI EFI           314.6 MB  disk0s1

  2:         Apple_APFS Container disk1     542.0 GB  disk0s2

  3:         Apple_HFS Untitled        450.1 GB  disk0s3

  4:         Apple_Boot Boot OS X        134.2 MB  disk0s4

/dev/disk1 (synthesized):

  #:            TYPE NAME          SIZE    IDENTIFIER

  0:   APFS Container Scheme -           +542.0 GB  disk1

                 Physical Store disk0s2

  1:        APFS Volume Macintosh HD      406.9 GB  disk1s1

  2:        APFS Volume Preboot         24.1 MB  disk1s2

  3:        APFS Volume Recovery        515.0 MB  disk1s3

  4:        APFS Volume VM           1.1 GB   disk1s4

It worked!

Thank you so much!