main
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Last change
on this file was ea777aa, checked in by Alex Wilton <awilton@…>, 3 years ago |
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Moved examples, include, build_default.properties, common.xml, and README out from dev.civl.com into the root of the repo.
git-svn-id: svn://vsl.cis.udel.edu/civl/trunk@5704 fb995dde-84ed-4084-dfe6-e5aef3e2452c
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Property mode
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File size:
525 bytes
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| 1 | #include <assert.h>
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| 2 |
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| 3 | #pragma CIVL ACSL
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| 4 |
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| 5 | $input int N;
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| 6 | $assume(N > 0);
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| 7 | $input double a[N];
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| 8 |
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| 9 | int main() {
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| 10 | int i = 0;
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| 11 | double max = a[0];
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| 12 |
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| 13 | /*@ loop invariant 1 <= i && i <= N;
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| 14 | @ loop invariant \forall int t; 0 <= t && t < i ==> a[t] <= max;
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| 15 | @ loop invariant \exists int t; 0 <= t && t < i ==> a[t] == max;
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| 16 | @ loop assigns i, max;
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| 17 | @*/
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| 18 | for (i = 1; i < N; i++)
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| 19 | if (a[i] > max)
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| 20 | max = a[i];
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| 21 |
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| 22 | assert($forall (int i : 0 .. N-1) a[i] <= max);
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| 23 | assert($exists (int i : 0 .. N-1) a[i] == max);
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| 24 | }
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