FreeBSD Manual Pages
EGROUND(1) User Commands EGROUND(1) NAME eground - manual page for eground 2.6 SYNOPSIS eground [options] [files] DESCRIPTION eground 2.6 Read a set of clauses and determine if it can be grounded (i.e. is ei- ther already ground or has no non-constant function symbols). If this is the case, print sufficiently many ground instances of the clauses to guarantee that a ground refutation can be found for unsatisfiable clause sets. Options -h --help Print a short description of program usage and options. --version Print the version number of the program. -v --verbose[=<arg>] Verbose comments on the progress of the program by printing technical information to stderr. The short form or the long form without the optional argument is equivalent to --verbose=1. -o <arg> --output-file=<arg> Redirect output into the named file. -s --silent Equivalent to --output-level=0. -l <arg> --output-level=<arg> Select an output level, greater values imply more verbose out- put. Level 0 produces nearly no output except for the final clauses, level 1 produces minimal additional output. Higher lev- els are without meaning in eground (I think). --print-statistics Print a short statistical summary of clauses read and generated. -R --resources-info Give some information about the resources used by the system. You will usually get CPU time information. On systems returning more information with the rusage() system call, you will also get information about memory consumption. --suppress-result Supress actual printing of the result, just give a short message about success. Useful mainly for test runs. --lop-in Set E-LOP as the input format. If no input format is selected by this or one of the following options, E will guess the input format based on the first token. It will almost always correctly recognize TPTP-3, but it may misidentify E-LOP files that use TPTP meta-identifiers as logical symbols. --tptp-in Parse TPTP-2 format instead of E-LOP (except includes, which are handles as in TPTP-3, as TPTP-2 include syntax is considered harmful). --tptp-out Print TPTP-2 format instead of E-LOP. --tptp-format Equivalent to --tptp-in and --tptp-out. --tptp2-in Synonymous with --tptp-in. --tptp2-out Synonymous with --tptp-out. --tptp2-format Synonymous with --tptp-format. --tstp-in Parse TPTP-3 format instead of E-LOP (Note that TPTP-3 syntax is still under development, and the version implemented may not be fully conformant at all times. It works on all TPTP 3.0.1 input files (including includes). --tstp-out Print output clauses in TPTP-3 syntax. --tstp-format Equivalent to --tstp-in and --tstp-out. --tptp3-in Synonymous with --tstp-in. --tptp3-out Synonymous with --tstp-out. --tptp3-format Synonymous with --tstp-format. -d --dimacs Print output in the DIMACS format suitable for many proposi- tional provers. --definitional-cnf[=<arg>] Tune the clausification algorithm to introduces definitions for subformulae to avoid exponential blow-up. The optional argument is a fudge factor that determines when definitions are intro- duced. 0 disables definitions completely. The default works well. The option without the optional argument is equivalent to --definitional-cnf=24. --old-cnf[=<arg>] As the previous option, but use the classical, well-tested clausification algorithm as opposed to the newewst one which avoides some algorithmic pitfalls and hence works better on some exotic formulae. The two may produce slightly different (but eq- uisatisfiable) clause normal forms. The option without the op- tional argument is equivalent to --old-cnf=24. --miniscope-limit[=<arg>] Set the limit of variables to miniscope per input formula. The build-in default is 1000. Only applies to the new (default) clausification algorithm The option without the optional argu- ment is equivalent to --miniscope-limit=2147483648. --split-tries[=<arg>] Determine the number of tries for splitting. If 0, no splitting is performed. If 1, only variable-disjoint splits are done. Oth- erwise, up to the desired number of variable permutations is tried to find a splitting subset. The option without the op- tional argument is equivalent to --split-tries=1. -U --no-unit-subsumption Do not check if clauses are subsumed by previously encountered unit clauses. -r --no-unit-resolution Do not perform forward-unit-resolution on new clauses. -t --no-tautology-detection Do not perform tautology deletion on new clauses. -m <arg> --memory-limit=<arg> Limit the memory the system may use. The argument is the allowed amount of memory in MB. This option may not work everywhere, due to broken and/or strange behaviour of setrlimit() in some UNIX implementations. It does work under all tested versions of So- laris and GNU/Linux. --cpu-limit[=<arg>] Limit the cpu time the program should run. The optional argument is the CPU time in seconds. The program will terminate immedi- ately after reaching the time limit, regardless of internal state. This option may not work everywhere, due to broken and/or strange behaviour of setrlimit() in some UNIX implementations. It does work under all tested versions of Solaris, HP-UX and GNU/Linux. As a side effect, this option will inhibit core file writing. The option without the optional argument is equivalent to --cpu-limit=300. --soft-cpu-limit[=<arg>] Limit the cpu time spend in grounding. After the time expires, the prover will print an partial system. The option without the optional argument is equivalent to --soft-cpu-limit=310. -i --add-one-instance If the grounding procedure runs out of time or memory, try to add at least one instance of each clause to the set. This might fail for really large clause sets, since the reserve memory kept for this purpose may be insufficient. -g <arg> --give-up=<arg> Give up early if the problem is unlikely to be reasonably small. If run without constraints, the programm will give up if the clause with the largest number of instances will be expanded into more than this number of instances. If run with contraints, the program keeps a running count and will terminate if the es- timated total number of clauses would exceed this value . A value of 0 will leave this test disabled. -c --constraints Use global purity constraints to restrict the number of instan- tiations done. -C --local-constraints Use local purity constraints to further restrict the number of instantiations done. Implies the previous option. Not yet imple- mented! Note to self: Split clauses need to get fresh variables if this is to work! -M --fix-minisat Fix the preamble to include only the maximum variable index, to compensate for MiniSAT's problematic interpretation of the DIMAC syntax. REPORTING BUGS Report bugs to <schulz@eprover.org>. Please include the following, if possible: * The version of the package as reported by eprover --version. * The operating system and version. * The exact command line that leads to the unexpected behaviour. * A description of what you expected and what actually happend. * If possible all input files necessary to reproduce the bug. COPYRIGHT Copyright 1998-2021 by Stephan Schulz, schulz@eprover.org, and the E contributors (see DOC/CONTRIBUTORS). This program is a part of the distribution of the equational theorem prover E. You can find the latest version of the E distribution as well as additional information at http://www.eprover.org This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MER- CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program (it should be contained in the top level directory of the distribution in the file COPYING); if not, write to the Free Soft- ware Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA The original copyright holder can be contacted via email or as Stephan Schulz DHBW Stuttgart Fakultaet Technik Informatik Rote- buehlplatz 41 70178 Stuttgart Germany eground 2.6 November 2025 EGROUND(1)
NAME | SYNOPSIS | DESCRIPTION | REPORTING BUGS | COPYRIGHT
Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=eground&sektion=1&manpath=FreeBSD+Ports+15.0>