Swap

[tyrbentsen]

Hi,

I'd like to implement some kind of swap function. But I'm unable to specify multiple conditions in one cell. Is that possible. In case it is, how?

Currently I tried the following ways.

This way is not accepted by the kompile parser ("Inner Parser: Parse error: unexpected character 'X'.").

rule <k> swap(X1:Id, X2:Id) => . ...</k>
    <env>... X1 |-> L1 ... X2 |-> L2 ...</env>
    <store> ... L1  |-> (V1 => V2) ... L2 |-> (V2 => V1) </store>

This way compiles but crashes krun ("A fatal error has been detected by the Java Runtime Environment: # EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x000007fec43a7ba2, pid=9624, tid=0x0000000000003280"):

rule <k> swap(X1:Id, X2:Id) => . ...</k>
    <env>... X1 |-> L1     X2 |-> L2 ...</env>
    <store> ... L1  |-> (V1 => V2)     L2 |-> (V2 => V1) </store>

Thank you for any hints.

[Everett Hildenbrandt]

Have you tried on https://github.com/kframework/k5? This version of K is deprecated.