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// RUN: %llvmgcc %s -emit-llvm -O0 -c -o %t2.bc
// RUN: %klee --posix-runtime --exit-on-error %t2.bc --sym-files 1 10
#include <assert.h>
#include <fcntl.h>
#include <errno.h>
int main(int argc, char **argv) {
int fd = open("A", O_TRUNC);
assert(fd == 3);
assert(!close(0));
assert(!close(1));
assert(close(0) == -1);
assert(close(1) == -1);
assert(open("A", O_TRUNC) == 0);
assert(dup(0) == 1);
assert(open("A", O_TRUNC) == 4);
assert(!close(1));
assert(open("A", O_TRUNC) == 1);
assert(dup(0) != 1);
assert(dup2(0,1) == 1);
return 0;
}
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