Parsed test spec with 2 sessions

starting permutation: s1alter s1commit s2nv
step s1alter: ALTER SEQUENCE seq1 MAXVALUE 10;
step s1commit: COMMIT;
step s2nv: SELECT nextval('seq1') FROM generate_series(1, 15);
ERROR:  nextval: reached maximum value of sequence "seq1" (10)

starting permutation: s1alter s2nv s1commit
step s1alter: ALTER SEQUENCE seq1 MAXVALUE 10;
step s2nv: SELECT nextval('seq1') FROM generate_series(1, 15); <waiting ...>
step s1commit: COMMIT;
step s2nv: <... completed>
ERROR:  nextval: reached maximum value of sequence "seq1" (10)

starting permutation: s1restart s2nv s1commit
step s1restart: ALTER SEQUENCE seq1 RESTART WITH 5;
step s2nv: SELECT nextval('seq1') FROM generate_series(1, 15); <waiting ...>
step s1commit: COMMIT;
step s2nv: <... completed>
nextval
-------
      5
      6
      7
      8
      9
     10
     11
     12
     13
     14
     15
     16
     17
     18
     19
(15 rows)


starting permutation: s1restart s2nv s1commit
step s1restart: ALTER SEQUENCE seq1 RESTART WITH 5;
step s2nv: SELECT nextval('seq1') FROM generate_series(1, 15); <waiting ...>
step s1commit: COMMIT;
step s2nv: <... completed>
nextval
-------
      5
      6
      7
      8
      9
     10
     11
     12
     13
     14
     15
     16
     17
     18
     19
(15 rows)


starting permutation: s2begin s2nv s1alter2 s2commit s1commit
step s2begin: BEGIN;
step s2nv: SELECT nextval('seq1') FROM generate_series(1, 15);
nextval
-------
      1
      2
      3
      4
      5
      6
      7
      8
      9
     10
     11
     12
     13
     14
     15
(15 rows)

step s1alter2: ALTER SEQUENCE seq1 MAXVALUE 20; <waiting ...>
step s2commit: COMMIT;
step s1alter2: <... completed>
step s1commit: COMMIT;