dup: expected failure occurred
dup_x1_case1: expected failure occurred
dup_x1_case2: expected failure occurred
dup_x2_case1: expected failure occurred
dup_x2_case2: expected failure occurred
dup_x2_case3: expected failure occurred
dup2: expected failure occurred
dup2_x1_case1: expected failure occurred
dup2_x1_case2: expected failure occurred
dup2_x1_case3: expected failure occurred
dup2_x2_case1: expected failure occurred
dup2_x2_case2: expected failure occurred
dup2_x2_case3: expected failure occurred
pop: expected failure occurred
pop2: expected failure occurred
swap_case1: expected failure occurred
swap_case2: expected failure occurred