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Prolog trace | Learn the Different Examples of Prolog trace
https://www.educba.com/prolog-trace/
Introduction to Prolog trace. Prolog trace is tracing the execution of the Prolog query, which allows to see all the goals being executed as part of the query in sequential order, independent of the query being succeeding or not. It also allows users to see steps occurring as Prolog backtracks. It will allow users to trace the program’s route while looking for a solution …
To turn on tracing in Prolog, execute the "goal"
https://www.cse.unsw.edu.au/~billw/dictionaries/prolog/tracing.html
tracing Tracing the execution of a Prolog query allows you to see all of the goals that are executed as part of the query, in sequence, along with whether or not they succeed. Tracing also allows you to see what steps occur as Prolog backtracks. To turn on tracing in Prolog, execute the "goal"?- trace. true.
Prolog - Quick Guide - Tutorialspoint
https://www.tutorialspoint.com/prolog/prolog_quick_guide.htm
Tracing the output. In Prolog we can trace the execution. To trace the output, you have to enter into the trace mode by typing “trace.”. Then from the output we can see that we are just tracing “pam is mother of whom?”. See the tracing output by taking X = pam, and Y as variable, there Y will be bob as answer.
prolog trace how to use - Stack Overflow
https://stackoverflow.com/questions/11355151/prolog-trace-how-to-use
How to go second step when trace prolog program? For example, I want to trace following simple program: length1([],0). length1([_X|Xs],N):- length1(Xs,N1), N is N1+1. I trace program: ?- trace,length([1,2,3],N). Call: (7) length([1, 2, 3], _G231) ? Exit: (7) length([1, 2, 3], 3) ? creep N = 3. But as we see, it immediately gives answer.
Prolog - Relations - Tutorialspoint
https://www.tutorialspoint.com/prolog/prolog_relations.htm
Debugging: Tracing the Execution of a Specific Goal - SWI-Prolog
https://swi-prolog.discourse.group/t/debugging-tracing-the-execution-of-a-specific-goal/1209
So far I have been using spy(my_predicate)to creep through the evaluation of my_predicateduring program execution. However, this has recently become tedious as there are numerous calls to my_predicate, but I am interested in tracing only those where my_predicateis passed the argument MyArgList. In Sicstus, it is possible to use something like …
SWI-Prolog -- Manual
https://www.swi-prolog.org/pldoc/man?section=trace-commands
You can do way more than just press spacebar when the tracer is paused at a port. All actions are single-character commands which are executed without waiting for a return (unless the command line option --no-tty is active). Pressing ? or h when paused will print out a list of these commands as well. 2.10.4.1 Control Flow Commands
A Concise Introduction To Prolog - University of Pennsylvania
https://www.cis.upenn.edu/~matuszek/Concise%20Guides/Concise%20Prolog.html
To begin tracing, use trace; to end tracing, use notrace. To exit Prolog, use halt . How to write Prolog programs Prolog is a notation for stating logical relations that happens to be executable. It has few control structures, because it is very difficult to assign meanings to control structures.
SWI-Prolog -- Manual
https://www.swi-prolog.org/pldoc/man?section=debugger
Tracing a predicate is achieved by wrapping the predicate using wrap_predicate/4. Each time a port (of the 4-port model) is passed that has a trace point set, the goal is printed. Unlike trace/0 , however, the execution is continued without asking for further information.
Overview of the SWI Prolog Command Line Debugger | Eric Zinda …
https://blog.inductorsoftware.com/blog/SWIPrologTrace
Trace mode is the main Prolog command line debugger that allows for tracing the transitions through the resolution states of predicates represented by ports in the “Byrd Box Model” and optionally pausing for a command when certain ports are hit.
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