Parsed test spec with 2 sessions

starting permutation: s1b s2b s2u s2c s1u1 s1u2 s1c
step s1b: BEGIN ISOLATION LEVEL REPEATABLE READ;
step s2b: BEGIN ISOLATION LEVEL REPEATABLE READ;
step s2u: UPDATE users SET sometime = '1830-10-04' WHERE id = 1;
step s2c: COMMIT;
step s1u1: UPDATE orders SET name = 'order of olivier (2)', user_id = 1 WHERE id = 1;
step s1u2: UPDATE orders SET name = 'order of olivier (3)', user_id = 1 WHERE id = 1;
step s1c: COMMIT;

starting permutation: s1b s2b s2u s1u1 s2c s1u2 s1c
step s1b: BEGIN ISOLATION LEVEL REPEATABLE READ;
step s2b: BEGIN ISOLATION LEVEL REPEATABLE READ;
step s2u: UPDATE users SET sometime = '1830-10-04' WHERE id = 1;
step s1u1: UPDATE orders SET name = 'order of olivier (2)', user_id = 1 WHERE id = 1;
step s2c: COMMIT;
step s1u2: UPDATE orders SET name = 'order of olivier (3)', user_id = 1 WHERE id = 1;
step s1c: COMMIT;

starting permutation: s1b s2b s1u1 s2u s2c s1u2 s1c
step s1b: BEGIN ISOLATION LEVEL REPEATABLE READ;
step s2b: BEGIN ISOLATION LEVEL REPEATABLE READ;
step s1u1: UPDATE orders SET name = 'order of olivier (2)', user_id = 1 WHERE id = 1;
step s2u: UPDATE users SET sometime = '1830-10-04' WHERE id = 1;
step s2c: COMMIT;
step s1u2: UPDATE orders SET name = 'order of olivier (3)', user_id = 1 WHERE id = 1;
step s1c: COMMIT;

starting permutation: s1b s1u1 s2b s2u s2c s1u2 s1c
step s1b: BEGIN ISOLATION LEVEL REPEATABLE READ;
step s1u1: UPDATE orders SET name = 'order of olivier (2)', user_id = 1 WHERE id = 1;
step s2b: BEGIN ISOLATION LEVEL REPEATABLE READ;
step s2u: UPDATE users SET sometime = '1830-10-04' WHERE id = 1;
step s2c: COMMIT;
step s1u2: UPDATE orders SET name = 'order of olivier (3)', user_id = 1 WHERE id = 1;
step s1c: COMMIT;

starting permutation: s1b s1u1 s2b s1u2 s2u s2c s1c
step s1b: BEGIN ISOLATION LEVEL REPEATABLE READ;
step s1u1: UPDATE orders SET name = 'order of olivier (2)', user_id = 1 WHERE id = 1;
step s2b: BEGIN ISOLATION LEVEL REPEATABLE READ;
step s1u2: UPDATE orders SET name = 'order of olivier (3)', user_id = 1 WHERE id = 1;
step s2u: UPDATE users SET sometime = '1830-10-04' WHERE id = 1;
step s2c: COMMIT;
step s1c: COMMIT;

starting permutation: s1b s1u1 s1u2 s2b s2u s2c s1c
step s1b: BEGIN ISOLATION LEVEL REPEATABLE READ;
step s1u1: UPDATE orders SET name = 'order of olivier (2)', user_id = 1 WHERE id = 1;
step s1u2: UPDATE orders SET name = 'order of olivier (3)', user_id = 1 WHERE id = 1;
step s2b: BEGIN ISOLATION LEVEL REPEATABLE READ;
step s2u: UPDATE users SET sometime = '1830-10-04' WHERE id = 1;
step s2c: COMMIT;
step s1c: COMMIT;