This file specifies the netlist of a circuit which can be used for simulation. Carafe really outputs only a subset of the full sim file specification as only a few of the constructs are necessary. There are three versions of this file, .sim, .bridge.sim, and .break.sim. The .sim file contains the netlist of the circuit without faults, the .bridge.sim files contains the netlist with bridge and gate oxide faults, and the .break.sim contains the netlist with 2-way break and 2-way transistor gate bridge/break faults. Carafe does not support the .break.sim file for compound faults. The Explanation of Faults chapter discusses these fault types in more detail.