Combination test multi-fault positioning method based on undetermined tuple

The invention discloses a combined test multi-fault positioning method based on undetermined tuples. The combined test multi-fault positioning method comprises the following steps of S1, executing and classifying test cases; s2, constructing a group qualification theoretical model; s3, setting a tuple to be determined; s4, updating the upper bound and the lower bound of the tuple to be determined; s5, searching a minimum fault mode; and step S6, circularly executing the step S4 and the step S5 until all the to-be-determined tuples are tested. According to the method, the father-child combinations of the combination are marked according to the result of the new test case, so that a large number of undetermined tuples are efficiently eliminated in the combination space, and the required time and space resources are saved; the process is continuously repeated until the properties of all the combinations are directly or indirectly tested, and even parts with overlapped faults are also tested, so that the problems