predicate all_different_int(array [int] of var int: x);
predicate count(array [int] of var int: x, var int: y, var int: c);
predicate fixed_cumulative(array [int] of var int: s, array [int] of int: d, array [int] of int: r, int: b);
predicate global_cardinality(array [int] of var int: x, array [int] of int: cover, array [int] of var int: counts);
predicate maximum_int(var int: m, array [int] of var int: x);
predicate minimum_int(var int: m, array [int] of var int: x);
predicate sliding_sum(int: low, int: up, int: seq, array [int] of var int: vs);
predicate sort(array [int] of var int: x, array [int] of var int: y);
predicate table_bool(array [int] of var bool: x, array [int, int] of bool: t);
predicate table_int(array [int] of var int: x, array [int, int] of int: t);
predicate var_cumulative(array [int] of var int: s, array [int] of int: d, array [int] of int: r, var int: b);
var 0..86: INT____00002 :: is_defined_var :: var_is_introduced;
var 0..100: INT____00003 :: is_defined_var :: var_is_introduced;
var 0..100: now :: output_var = INT____00003;
var 0..86: twoyearsago :: output_var = INT____00002;
array [1..7] of var 0..20: vars :: output_array([1..7]);
constraint int_lin_eq([-1, 1], [INT____00002, INT____00003], 14) :: defines_var(INT____00002);
constraint int_lin_eq([-1, 2], [INT____00003, INT____00002], 0) :: defines_var(INT____00003);
constraint int_lin_eq([1, -1], [vars[1], vars[2]], 1);
constraint int_lin_eq([1, -1], [vars[2], vars[3]], 1);
constraint int_lin_eq([1, -1], [vars[3], vars[4]], 1);
constraint int_lin_eq([1, -1], [vars[4], vars[5]], 1);
constraint int_lin_eq([1, -1], [vars[5], vars[6]], 1);
constraint int_lin_eq([1, -1], [vars[6], vars[7]], 1);
constraint int_lin_eq([-1, 1, 1, 1, 1, 1, 1, 1], [INT____00003, vars[1], vars[2], vars[3], vars[4], vars[5], vars[6], vars[7]], 0);
solve satisfy;