Loading device database for application ngdanno from file "gate_reduce.ncd".   "gate_reduce" is an NCD, version 2.27, device xc4005e, package pc84, speed-2Loading device for application ngdanno from file '4005e.nph' in environment/home/zeppelin2/tech_apps/m1_4.12.Loading constraints from file "gate_reduce.pcf"...Reading .ngm file "map.ngm"...Building NGA image...Annotating NGA image...Distributing delays...Reading component libraries for design expansion...WARNING:basna:22 - NGDANNO found physical components for which 100 percent   back-annotation is not possible.  (These components are listed below.)  Some   reasons these components may not be fully back-annotatable include:   1. The logic was replicated during physical mapping.   2. MAP was directed to optimize the logic through use of the -oe or -os   option, or the OPTIMIZE or OPT_EFFORT design attribute.   3. The component's configuration implies a more complex delay model than can   be accurately represented in the original design logic.  An example of such a   configuration is an XC4000-family CLB containing both carry logic and   multiple flip-flops.   Simulation models for the following components will be constructed from the   NCD netlist.  Signal names buried within these components will be lost.   n169   n171Writing .nga file "time_sim.nga"...   64 logical models annotated   2 physical models annotated