## lustrec / test / src / kind_fmcad08 / misc / durationThm_3_e3_207.lus @ 22fe1c93

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1 | 22fe1c93 | ploc | |
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2 | node Sofar( X : bool ) returns ( Sofar : bool ); |
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3 | let |
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4 | Sofar = X -> X and pre Sofar; |
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5 | tel |
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6 | node Age (p: bool) returns (age_of_p: int); |
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7 | let |
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8 | age_of_p = 0 -> if pre(p) then pre(age_of_p) - 1 else 0; |
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9 | tel |
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10 | node top (k0, m0: int; p, q : bool) returns (OK: bool); |
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11 | var k,m: int; |
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12 | env : bool; |
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13 | let |
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14 | k = k0-> pre(k); |
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15 | m = m0-> pre(m); |
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16 | env = Sofar( (k>=1 and m>=1) and (Age(p)>=k => q) and (Age(q)<= m) ); |
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17 | OK = env => (Age(p) <= k+m); |
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18 | --%MAIN; |
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19 | --%PROPERTY OK=true; |
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20 | tel |