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// RUN: %clang %s -emit-llvm -g %O0opt -c -o %t.bc
// RUN: rm -rf %t.klee-out
// RUN: %klee --output-dir=%t.klee-out -use-cex-cache=1 %t.bc 2>&1 | FileCheck %s
#include <stdio.h>
#include <assert.h>
int main(int argc, char** argv)
{
int y;
klee_make_symbolic(&y, sizeof(y), "y");
// Test cases divisor is positive or negative
if (y >= 0) {
if (y < 2) {
// Two test cases generated taking this path, one for y == 0 and y == 1
// CHECK: srem.c:[[@LINE+1]]: divide by zero
assert(1 % y == 0);
} else {
assert(1 % y == 1);
}
} else {
if (y > -2) {
assert(1 % y == 0);
} else {
assert(1 % y == 1);
}
}
// should fail for y == 0, succeed for all others
// BUT: no new testcase is generated as y = 0 already provoked the first assert to fail
assert(0 % y == 0);
// should fail for y == 0 and y == +/-1, but succeed for all others
// generates one testcase for either y == 1 or y == -1
// CHECK: srem.c:[[@LINE+1]]: ASSERTION FAIL
assert(-1 % y == -1);
// CHECK: KLEE: done: completed paths = 5
}
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