checker(1)						      General Commands Manual							checker(1)

NAME

       checker - SPARK Proof Checker

SYNOPSIS

       checker [OPTIONS] [FILE]

DESCRIPTION

       The  SPARK Proof Checker can be used to discharge verification conditions produced by the Examiner (*.vcg), possibly simplified by the Sim-
       plifier (*.siv).  This command is usually used when verification conditions cannot be discharged automatically by the Simplifier.

       By default checker runs in interactive mode.  It accepts commands from user and writes them into a cmd file (or	other  file  specified	by
       -command_log  option).  This file can be used later to run checker in batch mode (using option -execute).  Additionally, proof log is writ-
       ten into a plg file.

OPTIONS

       A summary of options is included below.	All options may be abbreviated to the shortest unique prefix.

       -help  Show summary of options.

       -version
	      Display version information.

       -plain Adopt a plain output style (e.g. no dates or version numbers).

       -overwrite_warning
	      Confirmation needed to overwrite command or proof log files.

       -command_log=LOG_FILE
	      Specify file name for the command log file.

       -proof_log=PLG_FILE
	      Specify file name for the proof log file.

       -execute=LOG_FILE
	      Execute a previously generated command log file.

       -resume
	      Resume a previously saved session.

FILES

       /usr/share/spark/checker/rules/*
	      Checker rules database.

SEE ALSO

       spark(1), sparksimp(1), spadesimp(1), pogs(1).

AUTHOR

       This manual page was written by Eugeniy Meshcheryakov <eugen@debian.org>, for the Debian project (and may be used by others).

								    3 June 2011 							checker(1)