## lustrec-tests / regression_tests / lustre_files / success / kind_fmcad08 / misc / durationThm_2_e7_149.lus @ 0c9457a0

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1 | b8dc00eb | bourbouh | |
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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 or 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 | --@ ensures OK; |
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11 | node top (k0: int; p, q, r, t : bool) returns (OK: bool); |
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12 | var k: int; |
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13 | env : bool; |
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14 | let |
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15 | k = k0-> pre(k); |
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16 | env = Sofar((k>=1) and (Age(p)>=k => q) and (Age(r)>=k => t)); |
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17 | OK = env => ((Age(p and r)>=k) => (q and t)); |
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18 | --%MAIN; |
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19 | --%PROPERTY OK=true; |
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20 | tel |