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_spec6_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:15:40,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:15:40,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:15:40,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:15:40,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:15:40,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:15:40,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:15:40,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:15:40,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:15:40,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:15:40,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:15:40,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:15:40,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:15:40,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:15:40,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:15:40,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:15:40,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:15:40,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:15:40,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:15:40,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:15:40,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:15:40,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:15:40,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:15:40,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:15:40,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:15:40,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:15:40,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:15:40,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:15:40,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:15:40,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:15:40,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:15:40,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:15:40,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:15:40,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:15:40,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:15:40,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:15:40,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:15:40,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:15:40,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:15:40,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:15:40,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:15:40,281 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 [2019-10-15 03:15:40,295 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:15:40,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:15:40,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:15:40,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:15:40,296 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:15:40,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:15:40,297 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:15:40,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:15:40,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:15:40,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:15:40,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:15:40,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:15:40,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:15:40,298 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:15:40,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:15:40,298 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:15:40,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:15:40,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:15:40,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:15:40,299 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:15:40,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:15:40,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:40,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:15:40,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:15:40,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:15:40,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:15:40,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:15:40,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:15:40,301 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 [2019-10-15 03:15:40,565 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:15:40,580 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:15:40,583 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:15:40,585 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:15:40,586 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:15:40,586 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product15.cil.c [2019-10-15 03:15:40,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ece1d60/d1156afe88524bc784ab07fbd5eb065a/FLAG3e0fe2cd8 [2019-10-15 03:15:41,280 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:15:41,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product15.cil.c [2019-10-15 03:15:41,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ece1d60/d1156afe88524bc784ab07fbd5eb065a/FLAG3e0fe2cd8 [2019-10-15 03:15:41,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ece1d60/d1156afe88524bc784ab07fbd5eb065a [2019-10-15 03:15:41,508 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:15:41,509 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:15:41,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:41,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:15:41,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:15:41,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:41" (1/1) ... [2019-10-15 03:15:41,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605515df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:41, skipping insertion in model container [2019-10-15 03:15:41,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:41" (1/1) ... [2019-10-15 03:15:41,527 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:15:41,610 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:15:42,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:42,453 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:15:42,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:42,642 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:15:42,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:42 WrapperNode [2019-10-15 03:15:42,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:42,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:15:42,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:15:42,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:15:42,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:42" (1/1) ... [2019-10-15 03:15:42,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:42" (1/1) ... [2019-10-15 03:15:42,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:42" (1/1) ... [2019-10-15 03:15:42,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:42" (1/1) ... [2019-10-15 03:15:42,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:42" (1/1) ... [2019-10-15 03:15:42,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:42" (1/1) ... [2019-10-15 03:15:42,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:42" (1/1) ... [2019-10-15 03:15:42,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:15:42,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:15:42,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:15:42,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:15:42,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:42" (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 [2019-10-15 03:15:42,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:15:42,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:15:42,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:42,906 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:15:42,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:15:42,908 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:15:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:15:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:15:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:15:42,910 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:15:42,910 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-15 03:15:42,911 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:15:42,912 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:15:42,912 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:15:42,912 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:15:42,912 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:15:42,915 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:15:42,916 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:15:42,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:15:42,917 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:15:42,917 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:15:42,917 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:15:42,918 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:15:42,918 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:15:42,918 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:15:42,918 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:15:42,919 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:15:42,919 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:15:42,919 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:15:42,920 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:15:42,920 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:15:42,920 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:15:42,920 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:15:42,920 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:15:42,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:15:42,921 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:15:42,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:15:42,922 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:15:42,922 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:15:42,922 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:15:42,922 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:15:42,922 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:15:42,922 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:15:42,923 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:15:42,923 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:15:42,923 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:15:42,923 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:15:42,923 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:15:42,924 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:15:42,924 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:15:42,924 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:15:42,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:15:42,924 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:15:42,925 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:15:42,925 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:15:42,925 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:15:42,925 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:15:42,926 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:15:42,926 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:15:42,927 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:15:42,927 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:15:42,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:15:42,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:15:42,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:15:42,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:15:42,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:15:42,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:15:42,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:15:42,929 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:15:42,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:15:42,930 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:15:42,930 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:15:42,930 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:15:42,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:15:42,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:15:42,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:15:42,933 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:15:42,933 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:15:42,933 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:15:42,933 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:15:42,934 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:15:42,935 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:15:42,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:42,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:42,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:15:42,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:15:42,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:42,937 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:15:42,937 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:42,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:15:42,938 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:15:42,938 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:15:42,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:15:42,939 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:15:42,939 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:15:42,939 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:15:42,939 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:15:42,939 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:15:42,940 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:15:42,940 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:15:42,940 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:15:42,940 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:15:42,941 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:15:42,941 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:15:42,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:42,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:42,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:42,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:15:42,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:15:42,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:15:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:15:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:15:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:15:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:15:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:15:42,944 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:15:42,945 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:15:42,945 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:15:42,945 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:15:42,945 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:15:42,946 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:15:42,946 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:15:42,946 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:15:42,947 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:15:42,948 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:15:42,948 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:15:42,949 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:15:42,949 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:15:42,949 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:15:42,949 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:15:42,949 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:15:42,950 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:15:42,951 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:15:42,952 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:15:42,956 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:15:42,956 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:15:42,957 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:15:42,957 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:15:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:15:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:15:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:15:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:15:42,958 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:15:42,959 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:15:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:15:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:15:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:15:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:15:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:15:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:15:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:15:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:15:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:15:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:15:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:15:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:15:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-15 03:15:42,973 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:15:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:15:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:15:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:15:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:15:42,974 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:15:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:15:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:15:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:15:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:15:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:15:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:15:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:15:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:15:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:15:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:15:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:15:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:15:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:15:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:15:42,977 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:15:42,977 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:15:42,977 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:15:42,977 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:15:42,977 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:15:42,977 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:15:42,977 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:15:42,977 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:15:42,978 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:15:42,978 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:15:42,978 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:15:42,978 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:15:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:15:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:15:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:15:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:15:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:15:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:15:42,979 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:15:42,980 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:15:42,980 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:15:42,980 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:15:42,980 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:15:42,980 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:15:42,980 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:15:42,980 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:15:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:15:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:15:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:15:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:15:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:15:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:15:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:15:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:15:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:15:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:15:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:15:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:15:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:15:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:15:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:15:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:15:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:15:42,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:15:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:15:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:15:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:15:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:15:42,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:15:42,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:15:47,369 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:15:47,370 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:15:47,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:47 BoogieIcfgContainer [2019-10-15 03:15:47,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:15:47,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:15:47,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:15:47,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:15:47,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:15:41" (1/3) ... [2019-10-15 03:15:47,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e542dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:47, skipping insertion in model container [2019-10-15 03:15:47,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:42" (2/3) ... [2019-10-15 03:15:47,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e542dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:47, skipping insertion in model container [2019-10-15 03:15:47,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:47" (3/3) ... [2019-10-15 03:15:47,381 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product15.cil.c [2019-10-15 03:15:47,391 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:15:47,401 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:15:47,412 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:15:47,454 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:15:47,454 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:15:47,454 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:15:47,454 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:15:47,455 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:15:47,455 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:15:47,455 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:15:47,455 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:15:47,483 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states. [2019-10-15 03:15:47,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-15 03:15:47,502 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:47,504 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:15:47,506 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:47,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:47,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1779818681, now seen corresponding path program 1 times [2019-10-15 03:15:47,566 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:47,566 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207056022] [2019-10-15 03:15:47,566 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:47,567 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:47,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:48,204 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:48,205 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207056022] [2019-10-15 03:15:48,206 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:48,206 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:15:48,207 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765650790] [2019-10-15 03:15:48,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:15:48,215 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:48,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:15:48,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:48,233 INFO L87 Difference]: Start difference. First operand 348 states. Second operand 2 states. [2019-10-15 03:15:48,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:48,322 INFO L93 Difference]: Finished difference Result 462 states and 548 transitions. [2019-10-15 03:15:48,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:15:48,324 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 136 [2019-10-15 03:15:48,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:48,342 INFO L225 Difference]: With dead ends: 462 [2019-10-15 03:15:48,343 INFO L226 Difference]: Without dead ends: 306 [2019-10-15 03:15:48,348 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 [2019-10-15 03:15:48,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2019-10-15 03:15:48,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2019-10-15 03:15:48,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-10-15 03:15:48,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 362 transitions. [2019-10-15 03:15:48,443 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 362 transitions. Word has length 136 [2019-10-15 03:15:48,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:48,445 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 362 transitions. [2019-10-15 03:15:48,445 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:15:48,445 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 362 transitions. [2019-10-15 03:15:48,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-15 03:15:48,450 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:48,451 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:15:48,451 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:48,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:48,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1593772105, now seen corresponding path program 1 times [2019-10-15 03:15:48,452 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:48,452 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236331859] [2019-10-15 03:15:48,452 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:48,452 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:48,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:48,691 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:48,692 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236331859] [2019-10-15 03:15:48,692 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:48,692 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:48,693 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58533980] [2019-10-15 03:15:48,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:48,695 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:48,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:48,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:48,696 INFO L87 Difference]: Start difference. First operand 306 states and 362 transitions. Second operand 3 states. [2019-10-15 03:15:48,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:48,755 INFO L93 Difference]: Finished difference Result 447 states and 519 transitions. [2019-10-15 03:15:48,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:48,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2019-10-15 03:15:48,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:48,767 INFO L225 Difference]: With dead ends: 447 [2019-10-15 03:15:48,767 INFO L226 Difference]: Without dead ends: 308 [2019-10-15 03:15:48,771 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 [2019-10-15 03:15:48,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2019-10-15 03:15:48,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2019-10-15 03:15:48,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2019-10-15 03:15:48,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 364 transitions. [2019-10-15 03:15:48,826 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 364 transitions. Word has length 137 [2019-10-15 03:15:48,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:48,827 INFO L462 AbstractCegarLoop]: Abstraction has 308 states and 364 transitions. [2019-10-15 03:15:48,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:48,827 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 364 transitions. [2019-10-15 03:15:48,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 03:15:48,838 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:48,841 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] [2019-10-15 03:15:48,842 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:48,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:48,842 INFO L82 PathProgramCache]: Analyzing trace with hash 388168151, now seen corresponding path program 1 times [2019-10-15 03:15:48,842 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:48,843 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730897044] [2019-10-15 03:15:48,843 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:48,843 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:48,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:49,133 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:49,133 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730897044] [2019-10-15 03:15:49,134 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:49,134 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:49,134 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347012417] [2019-10-15 03:15:49,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:49,136 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:49,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:49,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:49,137 INFO L87 Difference]: Start difference. First operand 308 states and 364 transitions. Second operand 3 states. [2019-10-15 03:15:49,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:49,199 INFO L93 Difference]: Finished difference Result 598 states and 735 transitions. [2019-10-15 03:15:49,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:49,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-15 03:15:49,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:49,205 INFO L225 Difference]: With dead ends: 598 [2019-10-15 03:15:49,206 INFO L226 Difference]: Without dead ends: 348 [2019-10-15 03:15:49,210 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 [2019-10-15 03:15:49,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-10-15 03:15:49,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 347. [2019-10-15 03:15:49,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-10-15 03:15:49,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 432 transitions. [2019-10-15 03:15:49,267 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 432 transitions. Word has length 146 [2019-10-15 03:15:49,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:49,268 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 432 transitions. [2019-10-15 03:15:49,268 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:49,268 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 432 transitions. [2019-10-15 03:15:49,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-15 03:15:49,276 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:49,277 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] [2019-10-15 03:15:49,277 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:49,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:49,278 INFO L82 PathProgramCache]: Analyzing trace with hash 566383838, now seen corresponding path program 1 times [2019-10-15 03:15:49,278 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:49,278 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985856868] [2019-10-15 03:15:49,278 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:49,279 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:49,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:49,485 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:49,485 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985856868] [2019-10-15 03:15:49,485 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:49,486 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:49,486 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139073307] [2019-10-15 03:15:49,487 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:49,487 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:49,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:49,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:49,488 INFO L87 Difference]: Start difference. First operand 347 states and 432 transitions. Second operand 3 states. [2019-10-15 03:15:49,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:49,533 INFO L93 Difference]: Finished difference Result 712 states and 934 transitions. [2019-10-15 03:15:49,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:49,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-10-15 03:15:49,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:49,540 INFO L225 Difference]: With dead ends: 712 [2019-10-15 03:15:49,540 INFO L226 Difference]: Without dead ends: 423 [2019-10-15 03:15:49,541 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 [2019-10-15 03:15:49,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-10-15 03:15:49,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 422. [2019-10-15 03:15:49,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2019-10-15 03:15:49,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 562 transitions. [2019-10-15 03:15:49,570 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 562 transitions. Word has length 147 [2019-10-15 03:15:49,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:49,571 INFO L462 AbstractCegarLoop]: Abstraction has 422 states and 562 transitions. [2019-10-15 03:15:49,571 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:49,571 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 562 transitions. [2019-10-15 03:15:49,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-15 03:15:49,575 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:49,575 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, 1, 1] [2019-10-15 03:15:49,575 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:49,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:49,576 INFO L82 PathProgramCache]: Analyzing trace with hash 48314154, now seen corresponding path program 1 times [2019-10-15 03:15:49,576 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:49,576 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431201152] [2019-10-15 03:15:49,576 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:49,576 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:49,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:50,191 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:15:50,192 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431201152] [2019-10-15 03:15:50,192 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:50,192 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-10-15 03:15:50,192 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978010610] [2019-10-15 03:15:50,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-15 03:15:50,193 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:50,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-15 03:15:50,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2019-10-15 03:15:50,194 INFO L87 Difference]: Start difference. First operand 422 states and 562 transitions. Second operand 22 states. [2019-10-15 03:15:55,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:55,573 INFO L93 Difference]: Finished difference Result 875 states and 1081 transitions. [2019-10-15 03:15:55,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-15 03:15:55,574 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 150 [2019-10-15 03:15:55,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:55,580 INFO L225 Difference]: With dead ends: 875 [2019-10-15 03:15:55,580 INFO L226 Difference]: Without dead ends: 687 [2019-10-15 03:15:55,582 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=233, Invalid=1929, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 03:15:55,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2019-10-15 03:15:55,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 678. [2019-10-15 03:15:55,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2019-10-15 03:15:55,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 844 transitions. [2019-10-15 03:15:55,671 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 844 transitions. Word has length 150 [2019-10-15 03:15:55,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:55,673 INFO L462 AbstractCegarLoop]: Abstraction has 678 states and 844 transitions. [2019-10-15 03:15:55,673 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-15 03:15:55,673 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 844 transitions. [2019-10-15 03:15:55,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-15 03:15:55,676 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:55,676 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:55,676 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:55,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:55,677 INFO L82 PathProgramCache]: Analyzing trace with hash 832653906, now seen corresponding path program 1 times [2019-10-15 03:15:55,677 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:55,677 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187602581] [2019-10-15 03:15:55,677 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:55,678 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:55,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:55,976 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:15:55,976 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187602581] [2019-10-15 03:15:55,977 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:55,977 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:15:55,977 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480286881] [2019-10-15 03:15:55,977 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:15:55,978 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:55,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:15:55,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:15:55,978 INFO L87 Difference]: Start difference. First operand 678 states and 844 transitions. Second operand 12 states. [2019-10-15 03:15:58,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:58,024 INFO L93 Difference]: Finished difference Result 1406 states and 1696 transitions. [2019-10-15 03:15:58,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:15:58,025 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 156 [2019-10-15 03:15:58,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:58,033 INFO L225 Difference]: With dead ends: 1406 [2019-10-15 03:15:58,033 INFO L226 Difference]: Without dead ends: 1083 [2019-10-15 03:15:58,035 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-10-15 03:15:58,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2019-10-15 03:15:58,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1008. [2019-10-15 03:15:58,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1008 states. [2019-10-15 03:15:58,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1240 transitions. [2019-10-15 03:15:58,098 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1240 transitions. Word has length 156 [2019-10-15 03:15:58,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:58,099 INFO L462 AbstractCegarLoop]: Abstraction has 1008 states and 1240 transitions. [2019-10-15 03:15:58,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:15:58,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1240 transitions. [2019-10-15 03:15:58,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-15 03:15:58,103 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:58,103 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:58,103 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:58,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:58,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1230130528, now seen corresponding path program 1 times [2019-10-15 03:15:58,104 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:58,104 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369012334] [2019-10-15 03:15:58,104 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:58,105 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:58,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:58,270 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:58,271 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369012334] [2019-10-15 03:15:58,271 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:58,271 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:58,271 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518951742] [2019-10-15 03:15:58,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:58,272 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:58,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:58,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:58,273 INFO L87 Difference]: Start difference. First operand 1008 states and 1240 transitions. Second operand 3 states. [2019-10-15 03:15:58,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:58,332 INFO L93 Difference]: Finished difference Result 2159 states and 2771 transitions. [2019-10-15 03:15:58,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:58,333 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2019-10-15 03:15:58,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:58,341 INFO L225 Difference]: With dead ends: 2159 [2019-10-15 03:15:58,341 INFO L226 Difference]: Without dead ends: 1209 [2019-10-15 03:15:58,344 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 [2019-10-15 03:15:58,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2019-10-15 03:15:58,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1207. [2019-10-15 03:15:58,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1207 states. [2019-10-15 03:15:58,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1586 transitions. [2019-10-15 03:15:58,414 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1586 transitions. Word has length 172 [2019-10-15 03:15:58,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:58,417 INFO L462 AbstractCegarLoop]: Abstraction has 1207 states and 1586 transitions. [2019-10-15 03:15:58,417 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:58,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1586 transitions. [2019-10-15 03:15:58,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-15 03:15:58,423 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:58,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:58,424 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:58,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:58,425 INFO L82 PathProgramCache]: Analyzing trace with hash -747573017, now seen corresponding path program 1 times [2019-10-15 03:15:58,425 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:58,426 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325846484] [2019-10-15 03:15:58,426 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:58,426 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:58,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:58,874 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:58,875 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325846484] [2019-10-15 03:15:58,875 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:58,876 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-15 03:15:58,876 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638044350] [2019-10-15 03:15:58,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 03:15:58,878 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:58,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 03:15:58,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2019-10-15 03:15:58,879 INFO L87 Difference]: Start difference. First operand 1207 states and 1586 transitions. Second operand 14 states. [2019-10-15 03:16:02,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:02,874 INFO L93 Difference]: Finished difference Result 2756 states and 3746 transitions. [2019-10-15 03:16:02,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-15 03:16:02,875 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 173 [2019-10-15 03:16:02,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:02,887 INFO L225 Difference]: With dead ends: 2756 [2019-10-15 03:16:02,887 INFO L226 Difference]: Without dead ends: 1991 [2019-10-15 03:16:02,890 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=191, Invalid=801, Unknown=0, NotChecked=0, Total=992 [2019-10-15 03:16:02,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2019-10-15 03:16:02,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1593. [2019-10-15 03:16:02,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1593 states. [2019-10-15 03:16:02,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2267 transitions. [2019-10-15 03:16:02,992 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2267 transitions. Word has length 173 [2019-10-15 03:16:02,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:02,992 INFO L462 AbstractCegarLoop]: Abstraction has 1593 states and 2267 transitions. [2019-10-15 03:16:02,993 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 03:16:02,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2267 transitions. [2019-10-15 03:16:02,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-15 03:16:02,999 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:03,000 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:03,000 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:03,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:03,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1683079785, now seen corresponding path program 1 times [2019-10-15 03:16:03,001 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:03,001 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056949927] [2019-10-15 03:16:03,001 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:03,001 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:03,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:03,125 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:16:03,126 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056949927] [2019-10-15 03:16:03,127 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:03,127 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:03,128 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452778166] [2019-10-15 03:16:03,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:03,128 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:03,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:03,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:03,129 INFO L87 Difference]: Start difference. First operand 1593 states and 2267 transitions. Second operand 3 states. [2019-10-15 03:16:03,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:03,234 INFO L93 Difference]: Finished difference Result 3401 states and 4978 transitions. [2019-10-15 03:16:03,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:03,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-10-15 03:16:03,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:03,248 INFO L225 Difference]: With dead ends: 3401 [2019-10-15 03:16:03,249 INFO L226 Difference]: Without dead ends: 1870 [2019-10-15 03:16:03,257 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 [2019-10-15 03:16:03,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1870 states. [2019-10-15 03:16:03,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1870 to 1869. [2019-10-15 03:16:03,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1869 states. [2019-10-15 03:16:03,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 2755 transitions. [2019-10-15 03:16:03,420 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 2755 transitions. Word has length 174 [2019-10-15 03:16:03,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:03,421 INFO L462 AbstractCegarLoop]: Abstraction has 1869 states and 2755 transitions. [2019-10-15 03:16:03,421 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:03,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 2755 transitions. [2019-10-15 03:16:03,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-15 03:16:03,435 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:03,435 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:03,435 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:03,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:03,436 INFO L82 PathProgramCache]: Analyzing trace with hash -2005906263, now seen corresponding path program 1 times [2019-10-15 03:16:03,436 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:03,437 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324690399] [2019-10-15 03:16:03,437 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:03,437 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:03,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:03,737 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:16:03,737 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324690399] [2019-10-15 03:16:03,738 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:03,739 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:16:03,739 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201284191] [2019-10-15 03:16:03,740 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:16:03,741 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:03,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:16:03,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:16:03,742 INFO L87 Difference]: Start difference. First operand 1869 states and 2755 transitions. Second operand 12 states. [2019-10-15 03:16:07,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:07,736 INFO L93 Difference]: Finished difference Result 3541 states and 5126 transitions. [2019-10-15 03:16:07,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-15 03:16:07,737 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 176 [2019-10-15 03:16:07,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:07,749 INFO L225 Difference]: With dead ends: 3541 [2019-10-15 03:16:07,749 INFO L226 Difference]: Without dead ends: 2118 [2019-10-15 03:16:07,755 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-15 03:16:07,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2019-10-15 03:16:07,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1720. [2019-10-15 03:16:07,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1720 states. [2019-10-15 03:16:07,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2480 transitions. [2019-10-15 03:16:07,865 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2480 transitions. Word has length 176 [2019-10-15 03:16:07,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:07,866 INFO L462 AbstractCegarLoop]: Abstraction has 1720 states and 2480 transitions. [2019-10-15 03:16:07,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:16:07,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2480 transitions. [2019-10-15 03:16:07,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-15 03:16:07,874 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:07,874 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:07,875 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:07,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:07,875 INFO L82 PathProgramCache]: Analyzing trace with hash 480344411, now seen corresponding path program 1 times [2019-10-15 03:16:07,875 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:07,876 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374312574] [2019-10-15 03:16:07,876 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:07,876 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:07,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:08,372 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-15 03:16:08,373 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374312574] [2019-10-15 03:16:08,373 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017262854] [2019-10-15 03:16:08,373 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 [2019-10-15 03:16:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:08,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 2774 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 03:16:09,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:16:09,153 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:16:09,153 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:16:09,514 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:16:09,514 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [524299792] [2019-10-15 03:16:09,551 INFO L162 IcfgInterpreter]: Started Sifa with 171 locations of interest [2019-10-15 03:16:09,551 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:16:09,559 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:16:09,568 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:16:09,569 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs