Go to the first, previous, next, last section, table of contents.


Properties which are native to analyzers

Author(s): Francisco Bueno, Manuel Hermenegildo, Pedro Lopez.

Version: 1.10#6 (2004/8/7, 21:46:39 CEST)

Version of last change: 1.9#86 (2003/7/17, 16:59:29 CEST)

This library contains a set of properties which are natively understood by the different program analyzers of ciaopp. They are used by ciaopp on output and they can also be used as properties in assertions.

Usage and interface (native_props)

Documentation on exports (native_props)

PROPERTY: covered/2:

covered(X, Y)

All variables occuring in X occur also in Y.

Usage: covered(X, Y)

PROPERTY: linear/1:

linear(X)

X is bound to a term which is linear, i.e., if it contains any variables, such variables appear only once in the term. For example, [1,2,3] and f(A,B) are linear terms, while f(A,A) is not.

Usage: linear(X)

PROPERTY: mshare/1:

mshare(X)

X contains all sharing sets [JL88,MH89] which specify the possible variable occurrences in the terms to which the variables involved in the clause may be bound. Sharing sets are a compact way of representing groundness of variables and dependencies between variables. This representation is however generally difficult to read for humans. For this reason, this information is often translated to ground/1, indep/1 and indep/2 properties, which are easier to read.

Usage: mshare(X)

PROPERTY: nonground/1:

Usage: nonground(X)

PROPERTY: fails/1:

fails(X)

Calls of the form X fail.

Usage: fails(X)

PROPERTY: not_fails/1:

not_fails(X)

Calls of the form X produce at least one solution, or not terminate [DLGH97].

Usage: not_fails(X)

PROPERTY: possibly_fails/1:

possibly_fails(X)

Non-failure is not ensured for any call of the form X [DLGH97]. In other words, nothing can be ensured about non-failure nor termination of such calls.

Usage: possibly_fails(X)

PROPERTY: covered/1:

covered(X)

For any call of the form X there is at least one clause whose test succeeds (i.e. all the calls of the form X are covered.) [DLGH97].

Usage: covered(X)

PROPERTY: not_covered/1:

not_covered(X)

There is some call of the form X for which there is not any clause whose test succeeds [DLGH97].

Usage: not_covered(X)

PROPERTY: is_det/1:

is_det(X)

All calls of the form X are deterministic, i.e. produce at most one solution, or not terminate.

Usage: is_det(X)

PROPERTY: non_det/1:

non_det(X)

All calls of the form X are not deterministic, i.e., produce several solutions.

Usage: non_det(X)

PROPERTY: possibly_nondet/1:

possibly_nondet(X)

Non-determinism is not ensured for all calls of the form X. In other words, nothing can be ensured about determinacy nor termination of such calls.

Usage: possibly_nondet(X)

PROPERTY: mut_exclusive/1:

mut_exclusive(X)

For any call of the form X at most one clause succeeds, i.e. clauses are pairwise exclusive.

Usage: mut_exclusive(X)

PROPERTY: not_mut_exclusive/1:

not_mut_exclusive(X)

Not for all calls of the form X at most one clause succeeds. I.e. clauses are not disjoint for some call.

Usage: not_mut_exclusive(X)

PROPERTY: size_lb/2:

size_lb(X, Y)

The minimum size of the terms to which the argument Y is bound to is given by the expression Y. Various measures can be used to determine the size of an argument, e.g., list-length, term-size, term-depth, integer-value, etc. [DL93].

Usage: size_lb(X, Y)

PROPERTY: size_ub/2:

size_ub(X, Y)

The maximum size of the terms to which the argument Y is bound to is given by the expression Y. Various measures can be used to determine the size of an argument, e.g., list-length, term-size, term-depth, integer-value, etc. [DL93].

Usage: size_ub(X, Y)

PROPERTY: steps_lb/2:

steps_lb(X, Y)

The minimum computation time (in resolution steps) spent by any call of the form X is given by the expression Y [DLGHL97,LGHD96]

Usage: steps_lb(X, Y)

PROPERTY: steps_ub/2:

steps_ub(X, Y)

The maximum computation time (in resolution steps) spent by any call of the form X is given by the expression Y [DL93,LGHD96]

Usage: steps_ub(X, Y)

PROPERTY: steps/2:

steps(X, Y)

The time (in resolution steps) spent by any call of the form X is given by the expression Y

Usage: steps(X, Y)

PROPERTY: finite_solutions/1:

finite_solutions(X)

Calls of the form X produce a finite number of solutions [DLGH97].

Usage: finite_solutions(X)

PROPERTY: terminates/1:

terminates(X)

Calls of the form X always terminate [DLGH97].

Usage: terminates(X)

PROPERTY: indep/1:

Usage: indep(X)

PROPERTY: indep/2:

Usage: indep(X, Y)

PROPERTY: ground/1:

Usage: ground(X)

PROPERTY: nonvar/1:

General properties: nonvar(X)

Usage: nonvar(X)

PROPERTY: var/1:

General properties: var(X)

Usage: var(X)

(UNDOC_REEXPORT): regtype/1:

Imported from basic_props (see the corresponding documentation for details).

(UNDOC_REEXPORT): native/2:

Imported from basic_props (see the corresponding documentation for details).

(UNDOC_REEXPORT): native/1:

Imported from basic_props (see the corresponding documentation for details).

(UNDOC_REEXPORT): sideff/2:

Imported from basic_props (see the corresponding documentation for details).

(UNDOC_REEXPORT): term/1:

Imported from basic_props (see the corresponding documentation for details).

(UNDOC_REEXPORT): int/1:

Imported from basic_props (see the corresponding documentation for details).

(UNDOC_REEXPORT): nnegint/1:

Imported from basic_props (see the corresponding documentation for details).

(UNDOC_REEXPORT): flt/1:

Imported from basic_props (see the corresponding documentation for details).

(UNDOC_REEXPORT): num/1:

Imported from basic_props (see the corresponding documentation for details).

(UNDOC_REEXPORT): atm/1:

Imported from basic_props (see the corresponding documentation for details).

(UNDOC_REEXPORT): struct/1:

Imported from basic_props (see the corresponding documentation for details).

(UNDOC_REEXPORT): gnd/1:

Imported from basic_props (see the corresponding documentation for details).

(UNDOC_REEXPORT): instance/2:

Imported from terms_check (see the corresponding documentation for details).


Go to the first, previous, next, last section, table of contents.