#! /usr/bin/env tclsh


proc main {sourcetype source} {
	switch $sourcetype {
		file {
			set chan [open $source]
			try {
				set data [read $chan]
			} finally {
				close $chan
			}
		}
		string {
			set data $source
		}
		default {
			error [list {wrong # args}]
		}
	}
	set found [regexp -inline -all {blocks are\
	    (?:(?:(?:definitely|indirectly|possibly) lost)|still reachable)} $data]
	if {[llength $found]} {
		puts 0
	} else {
		puts 1
	}
	flush stdout
}
main {*}$argv