java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:05:55,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:05:55,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:05:55,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:05:55,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:05:55,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:05:55,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:05:55,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:05:55,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:05:55,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:05:55,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:05:55,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:05:55,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:05:55,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:05:55,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:05:55,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:05:55,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:05:55,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:05:55,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:05:55,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:05:55,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:05:55,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:05:55,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:05:55,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:05:55,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:05:55,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:05:55,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:05:55,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:05:55,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:05:55,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:05:55,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:05:55,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:05:55,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:05:55,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:05:55,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:05:55,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:05:55,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:05:55,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:05:55,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:05:55,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:05:55,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:05:55,991 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:05:56,030 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:05:56,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:05:56,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:05:56,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:05:56,031 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:05:56,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:05:56,032 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:05:56,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:05:56,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:05:56,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:05:56,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:05:56,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:05:56,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:05:56,036 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:05:56,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:05:56,037 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:05:56,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:05:56,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:05:56,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:05:56,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:05:56,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:05:56,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:05:56,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:05:56,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:05:56,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:05:56,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:05:56,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:05:56,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:05:56,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:05:56,309 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:05:56,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:05:56,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:05:56,328 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:05:56,329 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:05:56,329 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product19.cil.c [2019-10-13 23:05:56,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9699741b8/767de6ec7d774d799498c2857585e380/FLAG2b6a8692c [2019-10-13 23:05:57,006 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:05:57,007 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product19.cil.c [2019-10-13 23:05:57,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9699741b8/767de6ec7d774d799498c2857585e380/FLAG2b6a8692c [2019-10-13 23:05:57,242 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9699741b8/767de6ec7d774d799498c2857585e380 [2019-10-13 23:05:57,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:05:57,254 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:05:57,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:05:57,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:05:57,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:05:57,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:05:57" (1/1) ... [2019-10-13 23:05:57,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef0aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:57, skipping insertion in model container [2019-10-13 23:05:57,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:05:57" (1/1) ... [2019-10-13 23:05:57,273 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:05:57,373 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:05:58,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:05:58,310 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:05:58,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:05:58,548 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:05:58,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:58 WrapperNode [2019-10-13 23:05:58,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:05:58,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:05:58,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:05:58,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:05:58,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:58" (1/1) ... [2019-10-13 23:05:58,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:58" (1/1) ... [2019-10-13 23:05:58,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:58" (1/1) ... [2019-10-13 23:05:58,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:58" (1/1) ... [2019-10-13 23:05:58,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:58" (1/1) ... [2019-10-13 23:05:58,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:58" (1/1) ... [2019-10-13 23:05:58,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:58" (1/1) ... [2019-10-13 23:05:58,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:05:58,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:05:58,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:05:58,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:05:58,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:05:58,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:05:58,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:05:58,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:05:58,843 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:05:58,843 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:05:58,845 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:05:58,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:05:58,846 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:05:58,846 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:05:58,846 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:05:58,847 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:05:58,848 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:05:58,848 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:05:58,848 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:05:58,848 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:05:58,849 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:05:58,851 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:05:58,851 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:05:58,852 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:05:58,852 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:05:58,852 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:05:58,853 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:05:58,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:05:58,853 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:05:58,853 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:05:58,854 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:05:58,854 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:05:58,854 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:05:58,854 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:05:58,854 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:05:58,855 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:05:58,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:05:58,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:05:58,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:05:58,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:05:58,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:05:58,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:05:58,856 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:05:58,857 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:05:58,857 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:05:58,857 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:05:58,857 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:05:58,857 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:05:58,858 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:05:58,858 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:05:58,858 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:05:58,858 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:05:58,858 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:05:58,859 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:05:58,859 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:05:58,859 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:05:58,859 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:05:58,859 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:05:58,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:05:58,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:05:58,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:05:58,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:05:58,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:05:58,861 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:05:58,861 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:05:58,862 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:05:58,862 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:05:58,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:05:58,862 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:05:58,863 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:05:58,863 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:05:58,863 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:05:58,863 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:05:58,863 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:05:58,863 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:05:58,864 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:05:58,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:05:58,864 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:05:58,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:05:58,865 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:05:58,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:05:58,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:05:58,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:05:58,867 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:05:58,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:05:58,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:05:58,868 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:05:58,868 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:05:58,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 23:05:58,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:05:58,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:05:58,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:05:58,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:05:58,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:05:58,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:05:58,871 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:05:58,871 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:05:58,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:05:58,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:05:58,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:05:58,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:05:58,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:05:58,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:05:58,873 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:05:58,873 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:05:58,873 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:05:58,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:05:58,873 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:05:58,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:05:58,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:05:58,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:05:58,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:05:58,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:05:58,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:05:58,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:05:58,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:05:58,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:05:58,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:05:58,875 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:05:58,876 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:05:58,876 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:05:58,876 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:05:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:05:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:05:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:05:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:05:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:05:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:05:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:05:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:05:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:05:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:05:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:05:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:05:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:05:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:05:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:05:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:05:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:05:58,885 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:05:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:05:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:05:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:05:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:05:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:05:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:05:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:05:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:05:58,888 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:05:58,894 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:05:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:05:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:05:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:05:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:05:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:05:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:05:58,895 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:05:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:05:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:05:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:05:58,896 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:05:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:05:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 23:05:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:05:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:05:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:05:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:05:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:05:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:05:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:05:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:05:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:05:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:05:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:05:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:05:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:05:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:05:58,899 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:05:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:05:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:05:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:05:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:05:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:05:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:05:58,900 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:05:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:05:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:05:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:05:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:05:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:05:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:05:58,901 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:05:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:05:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:05:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:05:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:05:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:05:58,902 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:05:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:05:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:05:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:05:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:05:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:05:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:05:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:05:58,903 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:05:58,904 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:05:58,904 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:05:58,904 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:05:58,904 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:05:58,904 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:05:58,904 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:05:58,904 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:05:58,905 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:05:58,905 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:05:58,905 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:05:58,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:05:58,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:05:58,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:05:58,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:05:58,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:05:58,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:05:58,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:05:58,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:05:58,906 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:05:58,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:05:58,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:05:58,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:05:58,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:05:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:05:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:05:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:05:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:05:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:05:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:05:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:05:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:05:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:05:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:05:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:05:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:05:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:06:03,550 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:06:03,550 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:06:03,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:06:03 BoogieIcfgContainer [2019-10-13 23:06:03,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:06:03,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:06:03,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:06:03,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:06:03,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:05:57" (1/3) ... [2019-10-13 23:06:03,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759a14f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:06:03, skipping insertion in model container [2019-10-13 23:06:03,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:58" (2/3) ... [2019-10-13 23:06:03,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759a14f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:06:03, skipping insertion in model container [2019-10-13 23:06:03,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:06:03" (3/3) ... [2019-10-13 23:06:03,561 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product19.cil.c [2019-10-13 23:06:03,572 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:06:03,582 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:06:03,596 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:06:03,635 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:06:03,635 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:06:03,635 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:06:03,635 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:06:03,635 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:06:03,636 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:06:03,636 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:06:03,637 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:06:03,673 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states. [2019-10-13 23:06:03,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-13 23:06:03,694 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:03,695 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:06:03,697 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:03,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:03,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1851438349, now seen corresponding path program 1 times [2019-10-13 23:06:03,713 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:03,714 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130413745] [2019-10-13 23:06:03,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:03,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:03,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:04,351 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:06:04,351 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130413745] [2019-10-13 23:06:04,352 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:04,353 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:06:04,353 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752619054] [2019-10-13 23:06:04,361 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:06:04,362 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:04,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:06:04,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:06:04,379 INFO L87 Difference]: Start difference. First operand 356 states. Second operand 2 states. [2019-10-13 23:06:04,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:04,465 INFO L93 Difference]: Finished difference Result 520 states and 606 transitions. [2019-10-13 23:06:04,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:06:04,466 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 147 [2019-10-13 23:06:04,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:04,485 INFO L225 Difference]: With dead ends: 520 [2019-10-13 23:06:04,485 INFO L226 Difference]: Without dead ends: 335 [2019-10-13 23:06:04,491 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:06:04,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2019-10-13 23:06:04,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2019-10-13 23:06:04,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2019-10-13 23:06:04,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 390 transitions. [2019-10-13 23:06:04,574 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 390 transitions. Word has length 147 [2019-10-13 23:06:04,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:04,576 INFO L462 AbstractCegarLoop]: Abstraction has 335 states and 390 transitions. [2019-10-13 23:06:04,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:06:04,576 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 390 transitions. [2019-10-13 23:06:04,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 23:06:04,582 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:04,583 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:06:04,583 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:04,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:04,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1574707570, now seen corresponding path program 1 times [2019-10-13 23:06:04,584 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:04,584 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060633528] [2019-10-13 23:06:04,584 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:04,584 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:04,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:04,859 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:06:04,859 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060633528] [2019-10-13 23:06:04,860 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:04,860 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:06:04,860 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34909413] [2019-10-13 23:06:04,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:06:04,865 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:04,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:06:04,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:06:04,866 INFO L87 Difference]: Start difference. First operand 335 states and 390 transitions. Second operand 3 states. [2019-10-13 23:06:04,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:04,941 INFO L93 Difference]: Finished difference Result 505 states and 575 transitions. [2019-10-13 23:06:04,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:06:04,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2019-10-13 23:06:04,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:04,956 INFO L225 Difference]: With dead ends: 505 [2019-10-13 23:06:04,957 INFO L226 Difference]: Without dead ends: 337 [2019-10-13 23:06:04,959 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:06:04,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2019-10-13 23:06:05,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2019-10-13 23:06:05,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2019-10-13 23:06:05,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 392 transitions. [2019-10-13 23:06:05,020 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 392 transitions. Word has length 148 [2019-10-13 23:06:05,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:05,023 INFO L462 AbstractCegarLoop]: Abstraction has 337 states and 392 transitions. [2019-10-13 23:06:05,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:06:05,023 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 392 transitions. [2019-10-13 23:06:05,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-13 23:06:05,031 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:05,032 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:06:05,032 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:05,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:05,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1249119823, now seen corresponding path program 1 times [2019-10-13 23:06:05,105 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:05,105 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307754139] [2019-10-13 23:06:05,105 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:05,105 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:05,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:05,346 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:06:05,347 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307754139] [2019-10-13 23:06:05,347 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:05,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:06:05,347 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109725271] [2019-10-13 23:06:05,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:06:05,350 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:05,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:06:05,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:06:05,351 INFO L87 Difference]: Start difference. First operand 337 states and 392 transitions. Second operand 3 states. [2019-10-13 23:06:05,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:05,403 INFO L93 Difference]: Finished difference Result 656 states and 791 transitions. [2019-10-13 23:06:05,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:06:05,404 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-10-13 23:06:05,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:05,410 INFO L225 Difference]: With dead ends: 656 [2019-10-13 23:06:05,410 INFO L226 Difference]: Without dead ends: 377 [2019-10-13 23:06:05,415 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:06:05,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2019-10-13 23:06:05,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 376. [2019-10-13 23:06:05,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2019-10-13 23:06:05,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 460 transitions. [2019-10-13 23:06:05,459 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 460 transitions. Word has length 153 [2019-10-13 23:06:05,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:05,460 INFO L462 AbstractCegarLoop]: Abstraction has 376 states and 460 transitions. [2019-10-13 23:06:05,460 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:06:05,460 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 460 transitions. [2019-10-13 23:06:05,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 23:06:05,470 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:05,470 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:06:05,471 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:05,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:05,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1817605988, now seen corresponding path program 1 times [2019-10-13 23:06:05,472 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:05,472 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346334885] [2019-10-13 23:06:05,472 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:05,474 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:05,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:05,838 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 23:06:05,838 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346334885] [2019-10-13 23:06:05,838 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345900233] [2019-10-13 23:06:05,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:06:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:06,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 2499 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:06:06,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:06:06,607 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:06:06,607 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:06:06,847 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:06:06,847 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1822693285] [2019-10-13 23:06:06,886 INFO L162 IcfgInterpreter]: Started Sifa with 139 locations of interest [2019-10-13 23:06:06,886 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:06:06,894 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:06:06,902 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:06:06,903 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs