picomus: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/picomus - from package: picosat

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/picomus - from package: picosat

You may install the required package with command apt-get install {package}

Error in other languages:
picomus: bevel nie gevind nie
picomus: comandă negăsită
picomus: comando não encontrado
picomus: commande introuvable
picomus: command not found
picomus: käsku ei ole
picomus: không tìm thấy lệnh
picomus: komanda nerasta
picomus: Kommando nicht gefunden.
picomus: kommandot finns inte
picomus: komut yok
picomus: nie znaleziono polecenia
picomus: níor aimsíodh an t-ordú
picomus: no se encontró la orden
picomus: no s'ha trobat l'ordre
picomus: opdracht niet gevonden
picomus: parancs nem található
picomus: perintah tidak ditemukan
picomus: príkaz nenájdený
picomus: příkaz nenalezen
picomus: команда не найдена
picomus: командата не е открита
picomus: 命令找不到
picomus: コマンドが見つかりません