Cannot merge Overapprox

[Heizmann]

Input: examples/svcomp/ssh/s3_clnt.blast.01_false-unreach-call.i.cil.c
Toolchain: examples/toolchains/AutomizerCInlineWithBlockEncoding.xml
Settings: examples/settings/svcomp2017/automizer/svcomp-Reach-32bit-Automizer_Default.epf

I get the following error message.
(Issue has low priority for me.)

de.uni_freiburg.informatik.ultimate.core.model.models.annotation.IAnnotations$UnmergeableAnnotationsException: Cannot merge class de.uni_freiburg.informatik.ultimate.core.lib.models.annotation.Overapprox with class de.uni_freiburg.informatik.ultimate.core.lib.models.annotation.Overapprox
at de.uni_freiburg.informatik.ultimate.core.model.models.annotation.IAnnotations.merge(IAnnotations.java:75)
at de.uni_freiburg.informatik.ultimate.core.model.models.ModelUtils.mergeAnnotations(ModelUtils.java:100)
at de.uni_freiburg.informatik.ultimate.plugins.blockencoding.encoding.IcfgEdgeBuilder.constructSequentialComposition(IcfgEdgeBuilder.java:119)
at de.uni_freiburg.informatik.ultimate.plugins.blockencoding.encoding.IcfgEdgeBuilder.constructSequentialComposition(IcfgEdgeBuilder.java:101)
at de.uni_freiburg.informatik.ultimate.plugins.blockencoding.encoding.MinimizeStatesMultiEdgeMultiNode$EdgeConstructor.constructSequentialComposition(MinimizeStatesMultiEdgeMultiNode.java:185)
at de.uni_freiburg.informatik.ultimate.plugins.blockencoding.encoding.MinimizeStatesMultiEdgeMultiNode$EdgeConstructor.access$1(MinimizeStatesMultiEdgeMultiNode.java:184)
at java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1548)
at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580)
at de.uni_freiburg.informatik.ultimate.plugins.blockencoding.encoding.MinimizeStatesMultiEdgeMultiNode.processCandidate(MinimizeStatesMultiEdgeMultiNode.java:129)
at de.uni_freiburg.informatik.ultimate.plugins.blockencoding.encoding.BaseMinimizeStates.createResult(BaseMinimizeStates.java:97)
at de.uni_freiburg.informatik.ultimate.plugins.blockencoding.encoding.BaseBlockEncoder.getResult(BaseBlockEncoder.java:78)
at de.uni_freiburg.informatik.ultimate.plugins.blockencoding.BlockEncoder.applyEncoder(BlockEncoder.java:272)
at de.uni_freiburg.informatik.ultimate.plugins.blockencoding.BlockEncoder.processIcfg(BlockEncoder.java:188)
at de.uni_freiburg.informatik.ultimate.plugins.blockencoding.BlockEncoder.(BlockEncoder.java:109)
at de.uni_freiburg.informatik.ultimate.plugins.blockencoding.BlockEncodingObserver.process(BlockEncodingObserver.java:96)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.rerunToolchain(DefaultToolchainJob.java:173)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:131)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)