anldp1

Usage

Overview

This manual page documents briefly the anldp command.

anldp is an implementation of a Davis-Putnam procedure for the propositional satisfiability problem. anldp exposes the procedure used by mace2(1) to determine satisfiability. anldp can also take statements in first-order logic with equality and a domain size n then search for models of size n. The first-order model-searching code transforms the statements into set of propositional clauses such that the first-order statements have a model of size n if and only if the propositional clauses are satisfiable. The propositional set is then given to the Davis-Putnam code; any propositional models that are found can be translated to models of the first-order statements. The first-order model-searching program accepts statements only in a flattened relational clause form without function symbols.

Options

-s

Perform subsumption. (Subsumption is always performed during unit preprocessing.)

-p

Print models as they are found.

-m n

Stop when the nth model is found.

-t n

Stop after n seconds.

-k n

Allocate at most n kbytes for storage of clauses.

-x n

Quasigroup experiment n.

-B file

Backup assignments to a file.

-b n

Backup assignments every n seconds.

-R file

Restore assignments from a file. The file typically contains just the last line of a backup file. Other input, in particular the clauses, must be given exactly as in the original search.

-n n

This option is used for first-order model searches. The parameter n specifies the domain size, and its presence tells the program to read first-order flattened relational input clauses instead of propositional clauses.