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// BindingGuardsResolution.dfy
module TypesNotFullyDetermined {
method T0()
{
if x :| true {
}
}
method T1()
{
if x :| true {
var y := x + 3;
}
}
}
module Ghost {
predicate P(x: int)
predicate method R(x: int)
method M7() returns (z: int, b: bool)
{
if * {
z := z + -z;
} else if y :| 1000 <= y < 2000 && R(y) {
z := y;
} else if y :| 0 <= y < 100 && P(y) {
z := y;
} else if y :| 0 <= y < 100 && R(y) {
z := y;
}
if * {
z := z + -z;
} else if exists y :: 1000 <= y < 2000 && R(y) {
z := 0;
} else if exists y :: 0 <= y < 100 && P(y) {
z := 0;
} else if exists y :: 0 <= y < 100 && R(y) {
z := 0;
}
if P(z) {
z := 20;
}
b := exists y :: 0 <= y < 100 && P(y);
ghost var c;
c := exists y :: 0 <= y < 100 && P(y);
b := exists y {:myattribute P(y)} :: 0 <= y < 100;
}
}
predicate P(n: int)
predicate R(r: real)
method M0()
{
if x :| P(x) {
var y := x + 3;
var x := true;
}
}
method M1()
{
if x: int :| P(x) {
x := x + 1;
}
}
method M2()
{
var x := true;
if x, y :| P(x) && R(y) {
var z := x + 12;
}
x := x && false;
}
method M3()
{
var x := true;
if x: int, y :| P(x) && R(y) {
var z := x + int(y);
var w := real(x) + y;
}
var x := 0.0;
}
method M4()
{
if x, y: real :| P(x) && R(y) {
}
}
method M5()
{
if x: int, y: real :| P(x) && R(y) {
}
}
method M6()
{
if x {:myattribute x, "hello"} :| P(x) {
}
if x, y {:myattribute y, "sveika"} :| P(x) && R(y) {
}
if x: int {:myattribute x, "chello"} :| P(x) {
}
if x {:myattribute x, "hola"} {:yourattribute x + x, "hej"} :| P(x) {
}
}
method M7()
{
if x :| P(x) {
} else if * {
} else if y :| R(y) {
} else if y :| P(y) {
}
}
method P0(m: int, n: int)
requires m < n
{
var x := true;
if {
case x :| P(x) =>
var t := 3 * x;
case x: int :| P(x) =>
case x, y :| P(x) && R(y) =>
y := y + 1.0;
case x: int, y :| P(x) && R(y) =>
case m < n =>
x := x || m + 5 == n;
case x, y: real :| P(x) && R(y) =>
case x: int, y: real :| P(x) && R(y) =>
}
assert x;
}
method P1(m: int, n: int)
requires m < n
{
if {
case x {:myattribute x, "hello"} :| P(x) =>
case x, y {:myattribute y, "sveika"} :| P(x) && R(y) =>
case x: int {:myattribute x, "chello"} :| P(x) =>
case x {:myattribute x, "hola"} {:yourattribute x + x, "hej"} :| P(x) =>
case m < n =>
}
}
BindingGuardsResolution.dfy(109,7): Error: type of bound variable 'x' could not be determined; please specify the type explicitly
BindingGuardsResolution.dfy(130,8): Error: Assignment to non-ghost variable is not allowed in this context (because this is a ghost method or because the statement is guarded by a specification-only expression)
BindingGuardsResolution.dfy(132,8): Error: Assignment to non-ghost variable is not allowed in this context (because this is a ghost method or because the statement is guarded by a specification-only expression)
BindingGuardsResolution.dfy(140,8): Error: Assignment to non-ghost variable is not allowed in this context (because this is a ghost method or because the statement is guarded by a specification-only expression)
BindingGuardsResolution.dfy(142,8): Error: Assignment to non-ghost variable is not allowed in this context (because this is a ghost method or because the statement is guarded by a specification-only expression)
BindingGuardsResolution.dfy(146,8): Error: Assignment to non-ghost variable is not allowed in this context (because this is a ghost method or because the statement is guarded by a specification-only expression)
BindingGuardsResolution.dfy(149,37): Error: function calls are allowed only in specification contexts (consider declaring the function a 'function method')
BindingGuardsResolution.dfy(12,8): Error: Duplicate local-variable name: x
BindingGuardsResolution.dfy(19,4): Error: LHS of assignment must denote a mutable variable
BindingGuardsResolution.dfy(39,6): Error: Duplicate local-variable name: x
BindingGuardsResolution.dfy(84,6): Error: LHS of assignment must denote a mutable variable
11 resolution/type errors detected in BindingGuardsResolution.dfy
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