In issue #25 I reported an ArgumentException I was getting when running the SMACK tool on some test files using Symbooglix. I am also getting another exception on some other test files, which also only occurs when I pass the --bit-precise flag:

System.NotImplementedException: (_ bvbuiltin not supported!
at Symbooglix.BuilderDuplicator.HandleBvBuiltIns (Microsoft.Boogie.FunctionCall fc, System.String builtin, System.Collections.Generic.List`1[T] newArgs) [0x004dd] in <20b9c83e66a741738d0bf72150dda69a>:0
at Symbooglix.BuilderDuplicator.VisitNAryExpr (Microsoft.Boogie.NAryExpr node) [0x0008b] in <20b9c83e66a741738d0bf72150dda69a>:0
at Symbooglix.MapExecutionStateVariablesDuplicator.VisitNAryExpr (Microsoft.Boogie.NAryExpr node) [0x00162] in <20b9c83e66a741738d0bf72150dda69a>:0
at Microsoft.Boogie.NAryExpr.StdDispatch (Microsoft.Boogie.StandardVisitor visitor) [0x00000] in <7d6f451acda54bc3924b6a08150488e4>:0
at Microsoft.Boogie.StandardVisitor.Visit (Microsoft.Boogie.Absy node) [0x00000] in <7d6f451acda54bc3924b6a08150488e4>:0
at Microsoft.Boogie.Duplicator.Visit (Microsoft.Boogie.Absy node) [0x00000] in <7d6f451acda54bc3924b6a08150488e4>:0
at Symbooglix.BuilderDuplicator.VisitNAryExpr (Microsoft.Boogie.NAryExpr node) [0x0001e] in <20b9c83e66a741738d0bf72150dda69a>:0
at Symbooglix.MapExecutionStateVariablesDuplicator.VisitNAryExpr (Microsoft.Boogie.NAryExpr node) [0x00162] in <20b9c83e66a741738d0bf72150dda69a>:0
at Microsoft.Boogie.NAryExpr.StdDispatch (Microsoft.Boogie.StandardVisitor visitor) [0x00000] in <7d6f451acda54bc3924b6a08150488e4>:0
at Microsoft.Boogie.StandardVisitor.Visit (Microsoft.Boogie.Absy node) [0x00000] in <7d6f451acda54bc3924b6a08150488e4>:0
at Microsoft.Boogie.Duplicator.Visit (Microsoft.Boogie.Absy node) [0x00000] in <7d6f451acda54bc3924b6a08150488e4>:0
at Symbooglix.BuilderDuplicator.VisitNAryExpr (Microsoft.Boogie.NAryExpr node) [0x0001e] in <20b9c83e66a741738d0bf72150dda69a>:0
at Symbooglix.MapExecutionStateVariablesDuplicator.VisitNAryExpr (Microsoft.Boogie.NAryExpr node) [0x00162] in <20b9c83e66a741738d0bf72150dda69a>:0
at Microsoft.Boogie.NAryExpr.StdDispatch (Microsoft.Boogie.StandardVisitor visitor) [0x00000] in <7d6f451acda54bc3924b6a08150488e4>:0
at Microsoft.Boogie.StandardVisitor.Visit (Microsoft.Boogie.Absy node) [0x00000] in <7d6f451acda54bc3924b6a08150488e4>:0
at Microsoft.Boogie.Duplicator.Visit (Microsoft.Boogie.Absy node) [0x00000] in <7d6f451acda54bc3924b6a08150488e4>:0
at Symbooglix.Executor.Handle (Microsoft.Boogie.CallCmd c) [0x0008f] in <20b9c83e66a741738d0bf72150dda69a>:0
at (wrapper dynamic-method) System.Object:CallSite.Target (System.Runtime.CompilerServices.Closure,System.Runtime.CompilerServices.CallSite,Symbooglix.Executor,object)
at System.Dynamic.UpdateDelegates.UpdateAndExecuteVoid2[T0,T1] (System.Runtime.CompilerServices.CallSite site, T0 arg0, T1 arg1) [0x0003e] in <2392cff65f724abaaed9de072f62bc4a>:0
at (wrapper dynamic-method) System.Object:CallSite.Target (System.Runtime.CompilerServices.Closure,System.Runtime.CompilerServices.CallSite,Symbooglix.Executor,object)
at Symbooglix.Executor.ExecuteInstruction () [0x00091] in <20b9c83e66a741738d0bf72150dda69a>:0
at Symbooglix.Executor.InternalRun (Microsoft.Boogie.Implementation entryPoint, System.Int32 timeout) [0x001ea] in <20b9c83e66a741738d0bf72150dda69a>:0
at Symbooglix.Executor.Run (Microsoft.Boogie.Implementation entryPoint, System.Int32 timeout) [0x0002b] in <20b9c83e66a741738d0bf72150dda69a>:0

Here's the bpl file for one of the failing test files:

mm.zip

The command used run Symbooglix was:

symbooglix mm.bpl --file-logging=0 --entry-points=main --timeout=1200 --max-depth=1

Here's a list of the failing test files (https://github.com/smackers/smack/tree/master/test):

bits/interleave_bits_fail.c
bits/interleave_bits_true.c
bits/mm.c
bits/mm_fail.c
bits/num_conversion_1_fail.c
bits/num_conversion_1_true.c
bits/num_conversion_2_fail.c
bits/num_conversion_2_true.c
bits/pointers4.c
bits/pointers4_fail.c
bits/pointers6.c
bits/pointers7.c
bits/pointers7_fail.c
bits/unaligned_struct.c
bits/unaligned_struct_fail.c