assert_bad_2.mzn:10: error: 
assert_bad_2.mzn:10:   In variable declaration for b 
assert_bad_2.mzn:10:   In assigned value 
assert_bad_2.mzn:10:   In array comprehension 
assert_bad_2.mzn:10:   In head expression 
assert_bad_2.mzn:10:   In assert application 
assert_bad_2.mzn:10:   Assertion failure: that's odd...