Parsed test spec with 4 sessions

starting permutation: s1-begin s2-begin s1-update s2-update detector-dump-wait-edges s1-abort s2-abort
step s1-begin:
    BEGIN;

step s2-begin:
    BEGIN;

step s1-update:
    UPDATE distributed_table SET y = 1 WHERE x = 1;

step s2-update:
    UPDATE distributed_table SET y = 2 WHERE x = 1;
 <waiting ...>
step detector-dump-wait-edges: 
    SELECT
        waiting_transaction_num,
        blocking_transaction_num,
        blocking_transaction_waiting
    FROM
        dump_global_wait_edges()
    ORDER BY
        waiting_transaction_num,
        blocking_transaction_num,
        blocking_transaction_waiting;
    SELECT * FROM get_adjacency_list_wait_graph() ORDER BY 1;

waiting_transaction_num|blocking_transaction_num|blocking_transaction_waiting
---------------------------------------------------------------------
                    401|                     400|f
(1 row)

transactionnumber|waitingtransactionnumbers
---------------------------------------------------------------------
              400|
              401|                      400
(2 rows)

step s1-abort:
    ABORT;

step s2-update: <... completed>
step s2-abort:
    ABORT;


starting permutation: s1-begin s2-begin s3-begin s1-update s2-update s3-update detector-dump-wait-edges s1-abort s2-abort s3-abort
step s1-begin:
    BEGIN;

step s2-begin:
    BEGIN;

step s3-begin:
    BEGIN;

step s1-update:
    UPDATE distributed_table SET y = 1 WHERE x = 1;

step s2-update:
    UPDATE distributed_table SET y = 2 WHERE x = 1;
 <waiting ...>
step s3-update: 
    UPDATE distributed_table SET y = 3 WHERE x = 1;
 <waiting ...>
step detector-dump-wait-edges: 
    SELECT
        waiting_transaction_num,
        blocking_transaction_num,
        blocking_transaction_waiting
    FROM
        dump_global_wait_edges()
    ORDER BY
        waiting_transaction_num,
        blocking_transaction_num,
        blocking_transaction_waiting;
    SELECT * FROM get_adjacency_list_wait_graph() ORDER BY 1;

waiting_transaction_num|blocking_transaction_num|blocking_transaction_waiting
---------------------------------------------------------------------
                    405|                     404|f
                    406|                     404|f
                    406|                     405|t
(3 rows)

transactionnumber|waitingtransactionnumbers
---------------------------------------------------------------------
              404|
              405|404
              406|404,405
(3 rows)

step s1-abort:
    ABORT;

step s2-update: <... completed>
step s2-abort:
    ABORT;

step s3-update: <... completed>
step s3-abort:
    ABORT;