Assume that you are using traceability to manage test case coverage against test conditions. During test analysis, three test conditions were identified. Test design for system testing has been completed and 10 test cases (TC1 to TC10) have been designed, as described by the following traceability matrix (“C” indicates a critical test case, while “NC” indicates a non-critical test case):

[traceability matrix not visible in the prompt]

The exit criterion for system testing states that each test condition must have all the associated critical test cases successfully executed (passed) AND all associated non-critical test cases at least executed.

The following is the situation after three days of system testing:

TC1, TC2, TC4, TC5, TC7, TC9: passed

TC3, TC10: failed (with an associated open defect report)

TC6, TC8: not run

Management wants to decide whether to release the system. You advise them that the system does not yet meet the defined exit criteria.

Based only on the given information, which test condition does not yet meet the stated exit criterion?