HSPICE 1E-18 CAP value

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design_oriented

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Hi Guys,

In one of my hspice netlists I am getting a node cap of 1e-18 F to GND. This value is showing up from the o/p of the inverter to GND. I see another 1e-18F value from the input of the second inverter to GND. The circuit is one inverter feeding another inverter. Where could this 1e-18 F value come from? It looks like it is some default cap value.
 

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