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function {:builtin "MapConst"} mapconstbool(bool) : [int]bool;
procedure Allocate() returns ({:linear "tid"} xls: int);
ensures xls != 0;
procedure Allocate_1() returns ({:linear "1"} xls: [int]bool);
ensures xls == mapconstbool(true);
procedure Allocate_2() returns ({:linear "2"} xls: [int]bool);
ensures xls == mapconstbool(true);
var g: int;
var h: int;
procedure {:yields} A({:linear "tid"} tid_in: int) returns ({:linear "tid"} tid_out: int)
{
var {:linear "1"} x: [int]bool;
var {:linear "2"} y: [int]bool;
var {:linear "tid"} tid_child: int;
tid_out := tid_in;
call x := Allocate_1();
call y := Allocate_2();
g := 0;
yield;
assert x == mapconstbool(true);
assert g == 0;
yield;
call tid_child := Allocate();
async call B(tid_child, x);
yield;
assert x == mapconstbool(true);
assert g == 0;
yield;
h := 0;
yield;
assert h == 0 && y == mapconstbool(true);
yield;
call tid_child := Allocate();
async call C(tid_child, y);
}
procedure {:yields} {:stable} B({:linear "tid"} tid_in: int, {:linear "1"} x_in: [int]bool)
requires x_in != mapconstbool(false);
{
var {:linear "tid"} tid_out: int;
var {:linear "1"} x: [int]bool;
tid_out := tid_in;
x := x_in;
g := 1;
}
procedure {:yields} {:stable} C({:linear "tid"} tid_in: int, {:linear "2"} y_in: [int]bool)
requires y_in != mapconstbool(false);
{
var {:linear "tid"} tid_out: int;
var {:linear "2"} y: [int]bool;
tid_out := tid_in;
y := y_in;
h := 1;
}
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