ConcurrentAttribute.dfy(117,10): Warning: Could not find a trigger for this quantifier. Without a trigger, the quantifier may cause brittle verification. To silence this warning, add an explicit trigger using the {:trigger} attribute. For more information, see the section quantifier instantiation rules in the reference manual.
ConcurrentAttribute.dfy(123,13): Warning: Could not find a trigger for this quantifier. Without a trigger, the quantifier may cause brittle verification. To silence this warning, add an explicit trigger using the {:trigger} attribute. For more information, see the section quantifier instantiation rules in the reference manual.
ConcurrentAttribute.dfy(128,10): Warning: Could not find a trigger for this quantifier. Without a trigger, the quantifier may cause brittle verification. To silence this warning, add an explicit trigger using the {:trigger} attribute. For more information, see the section quantifier instantiation rules in the reference manual.
ConcurrentAttribute.dfy(129,13): Warning: Could not find a trigger for this quantifier. Without a trigger, the quantifier may cause brittle verification. To silence this warning, add an explicit trigger using the {:trigger} attribute. For more information, see the section quantifier instantiation rules in the reference manual.
ConcurrentAttribute.dfy(49,25): Error: reads clause could not be proved to be empty ({:concurrent} restriction)
ConcurrentAttribute.dfy(67,32): Error: reads clause could not be proved to be empty ({:concurrent} restriction)
ConcurrentAttribute.dfy(74,23): Error: reads clause could not be proved to be empty ({:concurrent} restriction)
ConcurrentAttribute.dfy(77,23): Error: reads clause could not be proved to be empty ({:concurrent} restriction)
ConcurrentAttribute.dfy(81,23): Error: reads clause could not be proved to be empty ({:concurrent} restriction)
ConcurrentAttribute.dfy(92,23): Error: reads clause could not be proved to be empty ({:concurrent} restriction)
ConcurrentAttribute.dfy(98,23): Error: reads clause could not be proved to be empty ({:concurrent} restriction)
ConcurrentAttribute.dfy(103,29): Error: reads clause could not be proved to be empty ({:concurrent} restriction)
ConcurrentAttribute.dfy(109,23): Error: modifies clause could not be proved to be empty ({:concurrent} restriction)
ConcurrentAttribute.dfy(116,29): Error: reads clause could not be proved to be empty ({:concurrent} restriction)
ConcurrentAttribute.dfy(121,29): Error: modifies clause could not be proved to be empty ({:concurrent} restriction)

Dafny program verifier finished with 15 verified, 11 errors
