mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
34 lines
752 B
Solidity
34 lines
752 B
Solidity
contract A {
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int x;
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int y;
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function a() public {
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require(A.x < 100);
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A.y = A.x++;
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assert(A.y == A.x - 1);
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// Fails
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// assert(A.y == 0); // Disabled because of nondeterminism in Spacer
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A.y = ++A.x;
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assert(A.y == A.x);
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delete A.x;
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assert(A.x == 0);
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A.y = A.x--;
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assert(A.y == A.x + 1);
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assert(A.y == 0);
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A.y = --A.x;
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assert(A.y == A.x);
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A.x += 10;
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// Fails
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assert(A.y == 0);
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assert(A.y + 10 == A.x);
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A.x -= 10;
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assert(A.y == A.x);
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}
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}
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// ====
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// SMTEngine: all
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// SMTIgnoreCex: yes
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// SMTIgnoreInv: yes
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// ----
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// Warning 6328: (392-408): CHC: Assertion violation happens here.
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// Info 1391: CHC: 17 verification condition(s) proved safe! Enable the model checker option "show proved safe" to see all of them.
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