/usr/bin/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-fb55353 [2019-11-07 04:22:55,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:22:55,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:22:55,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:22:55,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:22:55,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:22:55,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:22:55,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:22:55,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:22:55,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:22:55,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:22:55,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:22:55,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:22:55,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:22:55,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:22:55,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:22:55,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:22:55,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:22:55,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:22:55,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:22:55,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:22:55,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:22:55,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:22:55,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:22:55,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:22:55,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:22:55,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:22:55,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:22:55,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:22:55,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:22:55,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:22:55,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:22:55,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:22:55,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:22:55,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:22:55,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:22:55,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:22:55,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:22:55,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:22:55,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:22:55,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:22:55,540 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 [2019-11-07 04:22:55,555 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:22:55,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:22:55,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:22:55,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:22:55,557 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:22:55,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:22:55,557 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:22:55,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:22:55,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:22:55,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:22:55,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:22:55,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:22:55,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:22:55,558 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:22:55,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:22:55,559 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:22:55,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:22:55,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:22:55,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:22:55,560 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:22:55,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:22:55,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:22:55,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:22:55,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:22:55,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:22:55,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:22:55,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:22:55,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:22:55,561 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 [2019-11-07 04:22:55,858 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:22:55,872 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:22:55,876 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:22:55,877 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:22:55,878 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:22:55,879 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product15.cil.c [2019-11-07 04:22:55,955 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04897569d/d7af5ad9477143aabf91f179355fb9f2/FLAG4892f9a9f [2019-11-07 04:22:56,641 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:22:56,642 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product15.cil.c [2019-11-07 04:22:56,664 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04897569d/d7af5ad9477143aabf91f179355fb9f2/FLAG4892f9a9f [2019-11-07 04:22:56,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04897569d/d7af5ad9477143aabf91f179355fb9f2 [2019-11-07 04:22:56,851 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:22:56,853 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:22:56,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:22:56,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:22:56,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:22:56,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:22:56" (1/1) ... [2019-11-07 04:22:56,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a3afa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:56, skipping insertion in model container [2019-11-07 04:22:56,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:22:56" (1/1) ... [2019-11-07 04:22:56,872 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:22:56,965 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:22:57,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:22:57,675 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:22:57,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:22:57,893 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:22:57,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:57 WrapperNode [2019-11-07 04:22:57,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:22:57,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:22:57,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:22:57,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:22:57,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:57" (1/1) ... [2019-11-07 04:22:57,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:57" (1/1) ... [2019-11-07 04:22:57,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:57" (1/1) ... [2019-11-07 04:22:57,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:57" (1/1) ... [2019-11-07 04:22:58,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:57" (1/1) ... [2019-11-07 04:22:58,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:57" (1/1) ... [2019-11-07 04:22:58,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:57" (1/1) ... [2019-11-07 04:22:58,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:22:58,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:22:58,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:22:58,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:22:58,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:57" (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 [2019-11-07 04:22:58,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:22:58,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:22:58,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:22:58,161 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:22:58,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:22:58,162 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:22:58,162 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:22:58,162 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:22:58,162 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:22:58,162 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 04:22:58,163 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-11-07 04:22:58,163 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:22:58,163 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:22:58,163 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:22:58,164 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:22:58,164 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:22:58,164 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:22:58,164 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:22:58,164 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:22:58,165 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:22:58,165 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:22:58,166 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:22:58,166 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:22:58,166 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:22:58,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:22:58,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:22:58,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:22:58,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:22:58,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:22:58,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:22:58,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:22:58,168 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:22:58,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:22:58,168 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:22:58,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:22:58,169 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:22:58,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:22:58,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:22:58,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:22:58,169 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:22:58,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:22:58,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:22:58,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:22:58,170 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:22:58,170 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:22:58,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:22:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:22:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:22:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:22:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:22:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:22:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:22:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:22:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:22:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:22:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:22:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:22:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:22:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:22:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:22:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:22:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:22:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:22:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:22:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:22:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:22:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:22:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:22:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:22:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:22:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:22:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:22:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:22:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:22:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:22:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:22:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:22:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:22:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:22:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:22:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:22:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:22:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 04:22:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 04:22:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:22:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:22:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:22:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:22:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:22:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:22:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:22:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:22:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:22:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:22:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:22:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:22:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:22:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:22:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:22:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:22:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:22:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:22:58,181 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:22:58,181 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:22:58,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:22:58,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:22:58,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:22:58,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:22:58,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:22:58,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:22:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:22:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:22:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:22:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:22:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:22:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:22:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:22:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:22:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:22:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:22:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:22:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:22:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:22:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:22:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:22:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:22:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:22:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:22:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:22:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:22:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:22:58,186 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:22:58,186 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:22:58,186 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:22:58,186 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:22:58,186 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:22:58,186 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:22:58,186 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:22:58,186 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:22:58,187 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:22:58,187 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:22:58,187 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:22:58,187 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:22:58,187 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:22:58,187 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:22:58,188 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:22:58,188 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:22:58,188 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:22:58,188 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:22:58,188 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:22:58,188 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:22:58,188 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:22:58,189 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:22:58,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 04:22:58,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:22:58,189 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:22:58,189 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 04:22:58,189 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-11-07 04:22:58,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 04:22:58,190 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:22:58,190 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:22:58,190 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:22:58,190 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:22:58,190 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:22:58,190 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:22:58,191 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:22:58,191 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:22:58,191 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:22:58,191 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:22:58,191 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:22:58,191 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:22:58,191 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:22:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:22:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:22:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:22:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:22:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:22:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:22:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:22:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:22:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:22:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:22:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:22:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:22:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:22:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:22:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:22:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:22:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:22:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:22:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:22:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:22:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:22:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:22:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:22:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:22:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:22:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:22:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:22:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:22:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:22:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:22:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:22:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:22:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:22:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:22:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:22:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:22:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:22:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:22:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:22:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:22:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:22:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:22:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:22:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:22:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:22:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:22:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:22:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:22:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:22:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:22:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:22:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:22:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:22:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:22:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:22:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:22:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:22:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:22:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:22:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:22:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:22:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:22:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:23:02,422 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:23:02,423 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:23:02,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:23:02 BoogieIcfgContainer [2019-11-07 04:23:02,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:23:02,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:23:02,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:23:02,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:23:02,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:22:56" (1/3) ... [2019-11-07 04:23:02,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407d4150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:23:02, skipping insertion in model container [2019-11-07 04:23:02,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:22:57" (2/3) ... [2019-11-07 04:23:02,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407d4150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:23:02, skipping insertion in model container [2019-11-07 04:23:02,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:23:02" (3/3) ... [2019-11-07 04:23:02,432 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product15.cil.c [2019-11-07 04:23:02,441 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:23:02,450 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:23:02,462 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:23:02,490 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:23:02,491 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:23:02,491 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:23:02,491 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:23:02,491 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:23:02,491 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:23:02,491 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:23:02,491 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:23:02,520 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states. [2019-11-07 04:23:02,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-11-07 04:23:02,537 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:02,538 INFO L410 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] [2019-11-07 04:23:02,540 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:02,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:02,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1779818681, now seen corresponding path program 1 times [2019-11-07 04:23:02,560 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:02,560 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757236024] [2019-11-07 04:23:02,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:03,239 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:03,240 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757236024] [2019-11-07 04:23:03,246 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:03,246 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:23:03,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20359988] [2019-11-07 04:23:03,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:23:03,257 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:03,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:23:03,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:23:03,274 INFO L87 Difference]: Start difference. First operand 348 states. Second operand 2 states. [2019-11-07 04:23:03,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:03,349 INFO L93 Difference]: Finished difference Result 462 states and 548 transitions. [2019-11-07 04:23:03,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:23:03,353 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 136 [2019-11-07 04:23:03,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:03,383 INFO L225 Difference]: With dead ends: 462 [2019-11-07 04:23:03,383 INFO L226 Difference]: Without dead ends: 306 [2019-11-07 04:23:03,390 INFO L630 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 [2019-11-07 04:23:03,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2019-11-07 04:23:03,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2019-11-07 04:23:03,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-11-07 04:23:03,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 362 transitions. [2019-11-07 04:23:03,511 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 362 transitions. Word has length 136 [2019-11-07 04:23:03,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:03,514 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 362 transitions. [2019-11-07 04:23:03,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:23:03,514 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 362 transitions. [2019-11-07 04:23:03,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-11-07 04:23:03,526 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:03,526 INFO L410 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] [2019-11-07 04:23:03,527 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:03,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:03,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1593772105, now seen corresponding path program 1 times [2019-11-07 04:23:03,528 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:03,528 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122939247] [2019-11-07 04:23:03,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:03,734 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:03,735 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122939247] [2019-11-07 04:23:03,735 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:03,735 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:23:03,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013147197] [2019-11-07 04:23:03,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:23:03,738 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:03,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:23:03,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:23:03,739 INFO L87 Difference]: Start difference. First operand 306 states and 362 transitions. Second operand 3 states. [2019-11-07 04:23:03,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:03,772 INFO L93 Difference]: Finished difference Result 447 states and 519 transitions. [2019-11-07 04:23:03,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:23:03,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2019-11-07 04:23:03,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:03,776 INFO L225 Difference]: With dead ends: 447 [2019-11-07 04:23:03,777 INFO L226 Difference]: Without dead ends: 308 [2019-11-07 04:23:03,779 INFO L630 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 [2019-11-07 04:23:03,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2019-11-07 04:23:03,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2019-11-07 04:23:03,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2019-11-07 04:23:03,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 364 transitions. [2019-11-07 04:23:03,816 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 364 transitions. Word has length 137 [2019-11-07 04:23:03,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:03,817 INFO L462 AbstractCegarLoop]: Abstraction has 308 states and 364 transitions. [2019-11-07 04:23:03,817 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:23:03,817 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 364 transitions. [2019-11-07 04:23:03,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-11-07 04:23:03,823 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:03,827 INFO L410 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] [2019-11-07 04:23:03,827 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:03,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:03,828 INFO L82 PathProgramCache]: Analyzing trace with hash 388168151, now seen corresponding path program 1 times [2019-11-07 04:23:03,828 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:03,828 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474531637] [2019-11-07 04:23:03,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:03,995 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:03,995 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474531637] [2019-11-07 04:23:03,996 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:03,996 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:23:03,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612654265] [2019-11-07 04:23:03,997 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:23:03,997 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:03,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:23:03,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:23:03,998 INFO L87 Difference]: Start difference. First operand 308 states and 364 transitions. Second operand 3 states. [2019-11-07 04:23:04,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:04,051 INFO L93 Difference]: Finished difference Result 598 states and 735 transitions. [2019-11-07 04:23:04,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:23:04,052 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-11-07 04:23:04,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:04,062 INFO L225 Difference]: With dead ends: 598 [2019-11-07 04:23:04,063 INFO L226 Difference]: Without dead ends: 348 [2019-11-07 04:23:04,066 INFO L630 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 [2019-11-07 04:23:04,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-11-07 04:23:04,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 347. [2019-11-07 04:23:04,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-11-07 04:23:04,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 432 transitions. [2019-11-07 04:23:04,108 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 432 transitions. Word has length 146 [2019-11-07 04:23:04,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:04,109 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 432 transitions. [2019-11-07 04:23:04,109 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:23:04,109 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 432 transitions. [2019-11-07 04:23:04,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-11-07 04:23:04,115 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:04,115 INFO L410 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] [2019-11-07 04:23:04,118 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:04,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:04,118 INFO L82 PathProgramCache]: Analyzing trace with hash 566383838, now seen corresponding path program 1 times [2019-11-07 04:23:04,118 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:04,119 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281964666] [2019-11-07 04:23:04,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:04,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:04,481 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:04,482 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281964666] [2019-11-07 04:23:04,482 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:04,482 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:23:04,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377078368] [2019-11-07 04:23:04,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:23:04,484 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:04,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:23:04,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:23:04,484 INFO L87 Difference]: Start difference. First operand 347 states and 432 transitions. Second operand 3 states. [2019-11-07 04:23:04,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:04,517 INFO L93 Difference]: Finished difference Result 712 states and 934 transitions. [2019-11-07 04:23:04,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:23:04,518 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-11-07 04:23:04,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:04,521 INFO L225 Difference]: With dead ends: 712 [2019-11-07 04:23:04,521 INFO L226 Difference]: Without dead ends: 423 [2019-11-07 04:23:04,522 INFO L630 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 [2019-11-07 04:23:04,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-11-07 04:23:04,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 422. [2019-11-07 04:23:04,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2019-11-07 04:23:04,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 562 transitions. [2019-11-07 04:23:04,543 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 562 transitions. Word has length 147 [2019-11-07 04:23:04,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:04,544 INFO L462 AbstractCegarLoop]: Abstraction has 422 states and 562 transitions. [2019-11-07 04:23:04,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:23:04,544 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 562 transitions. [2019-11-07 04:23:04,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-11-07 04:23:04,548 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:04,548 INFO L410 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] [2019-11-07 04:23:04,548 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:04,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:04,549 INFO L82 PathProgramCache]: Analyzing trace with hash 48314154, now seen corresponding path program 1 times [2019-11-07 04:23:04,549 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:04,549 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281767603] [2019-11-07 04:23:04,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:05,041 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:23:05,042 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281767603] [2019-11-07 04:23:05,042 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:05,042 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-11-07 04:23:05,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275249020] [2019-11-07 04:23:05,043 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-07 04:23:05,043 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:05,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-07 04:23:05,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2019-11-07 04:23:05,044 INFO L87 Difference]: Start difference. First operand 422 states and 562 transitions. Second operand 22 states. [2019-11-07 04:23:10,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:10,985 INFO L93 Difference]: Finished difference Result 875 states and 1081 transitions. [2019-11-07 04:23:10,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-11-07 04:23:10,985 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 150 [2019-11-07 04:23:10,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:10,996 INFO L225 Difference]: With dead ends: 875 [2019-11-07 04:23:10,996 INFO L226 Difference]: Without dead ends: 687 [2019-11-07 04:23:11,002 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=233, Invalid=1929, Unknown=0, NotChecked=0, Total=2162 [2019-11-07 04:23:11,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2019-11-07 04:23:11,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 678. [2019-11-07 04:23:11,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2019-11-07 04:23:11,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 844 transitions. [2019-11-07 04:23:11,064 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 844 transitions. Word has length 150 [2019-11-07 04:23:11,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:11,068 INFO L462 AbstractCegarLoop]: Abstraction has 678 states and 844 transitions. [2019-11-07 04:23:11,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-07 04:23:11,068 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 844 transitions. [2019-11-07 04:23:11,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-11-07 04:23:11,072 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:11,072 INFO L410 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] [2019-11-07 04:23:11,072 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:11,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:11,073 INFO L82 PathProgramCache]: Analyzing trace with hash 832653906, now seen corresponding path program 1 times [2019-11-07 04:23:11,073 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:11,073 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773065930] [2019-11-07 04:23:11,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:11,437 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:23:11,437 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773065930] [2019-11-07 04:23:11,438 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:11,438 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:23:11,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642954076] [2019-11-07 04:23:11,439 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:23:11,439 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:11,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:23:11,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:23:11,440 INFO L87 Difference]: Start difference. First operand 678 states and 844 transitions. Second operand 12 states. [2019-11-07 04:23:13,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:13,863 INFO L93 Difference]: Finished difference Result 1406 states and 1696 transitions. [2019-11-07 04:23:13,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-07 04:23:13,864 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 156 [2019-11-07 04:23:13,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:13,872 INFO L225 Difference]: With dead ends: 1406 [2019-11-07 04:23:13,872 INFO L226 Difference]: Without dead ends: 1083 [2019-11-07 04:23:13,874 INFO L630 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 [2019-11-07 04:23:13,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2019-11-07 04:23:13,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1008. [2019-11-07 04:23:13,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1008 states. [2019-11-07 04:23:13,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1240 transitions. [2019-11-07 04:23:13,940 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1240 transitions. Word has length 156 [2019-11-07 04:23:13,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:13,940 INFO L462 AbstractCegarLoop]: Abstraction has 1008 states and 1240 transitions. [2019-11-07 04:23:13,941 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 04:23:13,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1240 transitions. [2019-11-07 04:23:13,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-11-07 04:23:13,944 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:13,945 INFO L410 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] [2019-11-07 04:23:13,945 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:13,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:13,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1230130528, now seen corresponding path program 1 times [2019-11-07 04:23:13,946 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:13,946 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149472566] [2019-11-07 04:23:13,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:14,076 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:14,077 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149472566] [2019-11-07 04:23:14,077 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:14,077 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:23:14,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854217547] [2019-11-07 04:23:14,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:23:14,078 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:14,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:23:14,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:23:14,079 INFO L87 Difference]: Start difference. First operand 1008 states and 1240 transitions. Second operand 3 states. [2019-11-07 04:23:14,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:14,148 INFO L93 Difference]: Finished difference Result 2159 states and 2771 transitions. [2019-11-07 04:23:14,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:23:14,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2019-11-07 04:23:14,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:14,157 INFO L225 Difference]: With dead ends: 2159 [2019-11-07 04:23:14,157 INFO L226 Difference]: Without dead ends: 1209 [2019-11-07 04:23:14,160 INFO L630 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 [2019-11-07 04:23:14,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2019-11-07 04:23:14,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1207. [2019-11-07 04:23:14,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1207 states. [2019-11-07 04:23:14,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1586 transitions. [2019-11-07 04:23:14,229 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1586 transitions. Word has length 172 [2019-11-07 04:23:14,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:14,230 INFO L462 AbstractCegarLoop]: Abstraction has 1207 states and 1586 transitions. [2019-11-07 04:23:14,230 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:23:14,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1586 transitions. [2019-11-07 04:23:14,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-11-07 04:23:14,235 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:14,235 INFO L410 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] [2019-11-07 04:23:14,235 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:14,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:14,236 INFO L82 PathProgramCache]: Analyzing trace with hash -747573017, now seen corresponding path program 1 times [2019-11-07 04:23:14,236 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:14,236 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124626854] [2019-11-07 04:23:14,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:14,647 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:14,647 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124626854] [2019-11-07 04:23:14,648 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:14,648 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-11-07 04:23:14,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822404235] [2019-11-07 04:23:14,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 04:23:14,649 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:14,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 04:23:14,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2019-11-07 04:23:14,650 INFO L87 Difference]: Start difference. First operand 1207 states and 1586 transitions. Second operand 14 states. [2019-11-07 04:23:18,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:18,769 INFO L93 Difference]: Finished difference Result 2756 states and 3746 transitions. [2019-11-07 04:23:18,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-11-07 04:23:18,770 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 173 [2019-11-07 04:23:18,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:18,788 INFO L225 Difference]: With dead ends: 2756 [2019-11-07 04:23:18,788 INFO L226 Difference]: Without dead ends: 1991 [2019-11-07 04:23:18,798 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=191, Invalid=801, Unknown=0, NotChecked=0, Total=992 [2019-11-07 04:23:18,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2019-11-07 04:23:18,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1593. [2019-11-07 04:23:18,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1593 states. [2019-11-07 04:23:18,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2267 transitions. [2019-11-07 04:23:18,970 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2267 transitions. Word has length 173 [2019-11-07 04:23:18,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:18,970 INFO L462 AbstractCegarLoop]: Abstraction has 1593 states and 2267 transitions. [2019-11-07 04:23:18,971 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 04:23:18,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2267 transitions. [2019-11-07 04:23:18,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-11-07 04:23:18,978 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:18,978 INFO L410 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] [2019-11-07 04:23:18,979 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:18,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:18,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1683079785, now seen corresponding path program 1 times [2019-11-07 04:23:18,979 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:18,979 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476716209] [2019-11-07 04:23:18,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:19,133 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:19,133 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476716209] [2019-11-07 04:23:19,135 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:19,135 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:23:19,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651783985] [2019-11-07 04:23:19,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:23:19,136 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:19,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:23:19,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:23:19,137 INFO L87 Difference]: Start difference. First operand 1593 states and 2267 transitions. Second operand 3 states. [2019-11-07 04:23:19,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:19,302 INFO L93 Difference]: Finished difference Result 3401 states and 4978 transitions. [2019-11-07 04:23:19,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:23:19,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-11-07 04:23:19,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:19,317 INFO L225 Difference]: With dead ends: 3401 [2019-11-07 04:23:19,317 INFO L226 Difference]: Without dead ends: 1870 [2019-11-07 04:23:19,322 INFO L630 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 [2019-11-07 04:23:19,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1870 states. [2019-11-07 04:23:19,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1870 to 1869. [2019-11-07 04:23:19,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1869 states. [2019-11-07 04:23:19,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 2755 transitions. [2019-11-07 04:23:19,442 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 2755 transitions. Word has length 174 [2019-11-07 04:23:19,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:19,443 INFO L462 AbstractCegarLoop]: Abstraction has 1869 states and 2755 transitions. [2019-11-07 04:23:19,443 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:23:19,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 2755 transitions. [2019-11-07 04:23:19,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-11-07 04:23:19,452 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:19,452 INFO L410 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] [2019-11-07 04:23:19,452 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:19,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:19,453 INFO L82 PathProgramCache]: Analyzing trace with hash -2005906263, now seen corresponding path program 1 times [2019-11-07 04:23:19,453 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:19,453 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347086866] [2019-11-07 04:23:19,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:19,723 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:19,724 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347086866] [2019-11-07 04:23:19,724 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:19,725 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:23:19,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581614625] [2019-11-07 04:23:19,726 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:23:19,727 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:19,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:23:19,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:23:19,728 INFO L87 Difference]: Start difference. First operand 1869 states and 2755 transitions. Second operand 12 states. [2019-11-07 04:23:23,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:23,805 INFO L93 Difference]: Finished difference Result 3541 states and 5126 transitions. [2019-11-07 04:23:23,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-07 04:23:23,805 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 176 [2019-11-07 04:23:23,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:23,820 INFO L225 Difference]: With dead ends: 3541 [2019-11-07 04:23:23,820 INFO L226 Difference]: Without dead ends: 2118 [2019-11-07 04:23:23,832 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-11-07 04:23:23,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2019-11-07 04:23:23,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1720. [2019-11-07 04:23:23,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1720 states. [2019-11-07 04:23:23,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2480 transitions. [2019-11-07 04:23:23,966 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2480 transitions. Word has length 176 [2019-11-07 04:23:23,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:23,967 INFO L462 AbstractCegarLoop]: Abstraction has 1720 states and 2480 transitions. [2019-11-07 04:23:23,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 04:23:23,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2480 transitions. [2019-11-07 04:23:23,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-11-07 04:23:23,980 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:23,981 INFO L410 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] [2019-11-07 04:23:23,981 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:23,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:23,982 INFO L82 PathProgramCache]: Analyzing trace with hash 480344411, now seen corresponding path program 1 times [2019-11-07 04:23:23,982 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:23,982 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184749142] [2019-11-07 04:23:23,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:24,444 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-07 04:23:24,444 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184749142] [2019-11-07 04:23:24,444 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658083129] [2019-11-07 04:23:24,445 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 [2019-11-07 04:23:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:25,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 2774 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 04:23:25,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:23:25,268 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:25,268 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:23:25,596 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:25,597 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1168811576] [2019-11-07 04:23:25,626 INFO L159 IcfgInterpreter]: Started Sifa with 171 locations of interest [2019-11-07 04:23:25,627 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:23:25,635 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:23:25,644 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:23:25,644 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs