composer – Magento 2 upgrade killed process

I want to upgrade Magento 2.1.7 to Magento 2.3.2 and I follow below commands

sudo composer require magento/product-community-edition=2.3.2 --no-update
sudo composer require --dev phpunit/phpunit:~6.2.0 friendsofphp/php-cs-fixer:~2.10.1 lusitanian/oauth:~0.8.10 pdepend/pdepend:2.5.2 sebastian/phpcpd:~3.0.0 squizlabs/php_codesniffer:3.2.2 --no-update
sudo composer remove --dev sjparkinson/static-review fabpot/php-cs-fixer --no-update
sudo composer update

But sudo composer update command killed.

please see below image.
enter image description here

Please help me on how to upgrade from 2.1.7 to 2.3.2.