7aa85f13bb
* Clean examples/evm, add a new one integer_overflow.py -> simple_int_overflow.sol simple_functions.py -> simple_multi_func.sol simple_transaction.py -> simple_value_check.sol * Add umd example
31 lines
620 B
Solidity
31 lines
620 B
Solidity
// Smart contract based on a classic symbolic execution example from slides
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// by Michael Hicks, University of Maryland.
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// https://www.cs.umd.edu/~mwh/se-tutorial/symbolic-exec.pdf
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pragma solidity ^0.4.15;
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contract SymExExample {
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function test_me(int a, int b, int c) public pure {
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int x = 0;
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int y = 0;
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int z = 0;
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if (a != 0) {
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x = -2;
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}
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if (b < 5) {
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if (a == 0 && c != 0) {
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y = 1;
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}
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z = 2;
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}
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// will fail when: a == 0 && b < 5 && c != 0
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assert(x + y + z != 3);
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}
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}
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