## lustrec-tests/regression_tests/lustre_files/success/kind_fmcad08/simulation/fast_1_e7_2044.lus @ 2d37a1e1

1 | b8dc00eb | bourbouh | |
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2 | node PosEdge (X: bool) returns (Y: bool); |
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3 | ```
let
``` |
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4 | Y = false -> X or not pre(X); |
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5 | ```
tel
``` |
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6 | node Edge (X: bool) returns (Y: bool); |
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7 | ```
let
``` |
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8 | Y = false -> (X and not pre(X) or not X and pre(X)); |
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9 | ```
tel
``` |
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10 | node AtLeastOnceSince(X, Y: bool) returns (XsinceY: bool); |
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11 | ```
let
``` |
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12 | XsinceY = if Y then X else (true -> X or pre(XsinceY)); |
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13 | ```
tel
``` |
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14 | node MoreThanOneSec(X: bool) returns (Y: bool); |
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15 | ```
let
``` |
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16 | Y = false -> pre(X) and X; |
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17 | ```
tel
``` |
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18 | node MoreThanTwoSec(X: bool) returns (Y: bool); |
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19 | ```
let
``` |
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20 | Y = false -> pre(false -> pre(X) and X) and X; |
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21 | ```
tel
``` |
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22 | node one_button (ccseti, ccsetd, ccr: bool) returns (ob: bool); |
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23 | ```
let
``` |
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24 | ob = ccseti and not ccsetd and not ccr or |
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25 | not ccseti and ccsetd and not ccr or |
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26 | not ccseti and not ccsetd and ccr; |
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27 | ```
tel
``` |
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28 | node prev_no_button (ccseti, ccsetd, ccr: bool) |
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29 | returns (pnb: bool); |
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30 | ```
let
``` |
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31 | pnb = true -> pre(not ccseti and not ccsetd and not ccr); |
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32 | ```
tel
``` |
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33 | node one_button_accept (ccseti, ccsetd, ccr, ccont, cca: bool) |
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34 | returns (oba: bool); |
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35 | ```
var
``` |
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36 | ob, pnb: bool; |
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37 | ```
let
``` |
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38 | pnb = prev_no_button(ccseti, ccsetd, ccr); |
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39 | ob = one_button(ccseti, ccsetd, ccr); |
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40 | oba = if pnb and ob then |
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41 | if not ccr then true |
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42 | else AtLeastOnceSince(cca, PosEdge(ccont)) |
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43 | else false; |
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44 | ```
tel
``` |
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45 | node cc_allowed (ccont, igsw, bpa, cccanc, battok, gearok, |
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46 | qfok, sdok, accok: bool; vs: int) |
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47 | returns (ccall: bool); |
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48 | ```
let
``` |
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49 | ccall = ccont and not bpa and battok and gearok and |
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50 | qfok and MoreThanOneSec(sdok) and 35 <= vs and |
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51 | vs <= 200 and MoreThanTwoSec(accok) and not cccanc; |
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52 | ```
tel
``` |
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53 | node main (igsw, ccd, cconoff, bpa, cccanc, battok, gearok, |
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54 | qfok, sdok, accok, ccseti, ccsetd, ccr: bool; vs: int) |
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55 | returns (ccont, cca: bool); |
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56 | ```
var
``` |
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57 | ccall: bool; |
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58 | ```
let
``` |
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59 | ccont = false -> if Edge(igsw) or ccd or |
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60 | pre(ccont) and PosEdge(cconoff) then false |
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61 | else if pre(not ccont) and |
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62 | PosEdge(cconoff) then true |
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63 | else pre(ccont); |
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64 | ccall = cc_allowed(ccont, igsw, bpa, cccanc, battok, |
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65 | gearok, qfok, sdok, accok, vs); |
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66 | cca = false -> |
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67 | if one_button_accept(ccseti, ccsetd, ccr, ccont, |
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68 | pre(cca)) |
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69 | and ccall then true else if not ccall then false |
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70 | else pre(cca); |
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71 | ```
tel
``` |
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72 | node top (igsw, ccd, cconoff, bpa, cccanc, battok, gearok, |
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73 | qfok, sdok, accok, ccseti, ccsetd, ccr: bool; vs: int) |
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74 | returns (OK : bool); |
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75 | 2d37a1e1 | ploc | ```
--@ contract guarantees OK;
``` |

76 | b8dc00eb | bourbouh | ```
var
``` |

77 | ccont, cca: bool; |
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78 | env : bool; |
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79 | ```
let
``` |
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80 | (ccont, cca) = main(igsw, ccd, cconoff, bpa, cccanc, battok, |
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81 | gearok, qfok, sdok, accok, ccseti, ccsetd, |
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82 | ccr, vs); |
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83 | env = not igsw -> true; |
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84 | OK = if PosEdge(cca) then PosEdge(ccseti) or |
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85 | PosEdge(ccsetd) or PosEdge(ccr) else true; |
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86 | ```
--%MAIN;
``` |
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87 | ```
--%PROPERTY OK=true;
``` |
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88 | ```
tel
``` |