1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
function {:existential true} b1():bool; function {:existential true} b2():bool; function {:existential true} b3():bool; var myVar: int; procedure foo(i:int) modifies myVar; ensures b1() || myVar>0; ensures b2() || myVar==0; ensures b3() || myVar<0; { myVar:=5; } // expected assigment: b1->false,b2->true,b3->true