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PVS Bug 1058


Synopsis:        trivial sequent not recognized as true
Severity:        serious
Priority:        medium
Responsible:     owre
State:           open
Class:           sw-bug
Arrival-Date:    Wed Jul 21 02:10:00 -0700 2010
Originator:      Hendrik Tews
Release:         PVS 4.2
Organization:    os.inf.tu-dresden.de
Environment: 
 System:          
 Architecture: 

Description: 
  
  --98TGg3JY6Q
  Content-Type: text/plain; charset=us-ascii
  Content-Description: message body text
  Content-Transfer-Encoding: 7bit
  
  Hi,
  
  in the attached file the first branch of the proof of the last
  lemma is
  
    {-1}  ThreeState_adt[ThreeStateModel.number_of_cores].core(x!5) = 0
      |-------
    {1}   ThreeState_adt[ThreeStateModel.number_of_cores].core(x!5) = 0
  
  PVS refuses to recognize this sequent as true. Only (replace -1)
  is able to finish this branch.
  
  Bye,
  
  Hendrik
  
  
  --98TGg3JY6Q
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  --98TGg3JY6Q--

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