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_spec4_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:58:00,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:58:00,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:58:00,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:58:00,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:58:00,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:58:00,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:58:00,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:58:00,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:58:00,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:58:00,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:58:00,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:58:00,047 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:58:00,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:58:00,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:58:00,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:58:00,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:58:00,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:58:00,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:58:00,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:58:00,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:58:00,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:58:00,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:58:00,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:58:00,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:58:00,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:58:00,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:58:00,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:58:00,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:58:00,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:58:00,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:58:00,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:58:00,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:58:00,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:58:00,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:58:00,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:58:00,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:58:00,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:58:00,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:58:00,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:58:00,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:58:00,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 14:58:00,097 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:58:00,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:58:00,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:58:00,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:58:00,098 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:58:00,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:58:00,099 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:58:00,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:58:00,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:58:00,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:58:00,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:58:00,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:58:00,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:58:00,100 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:58:00,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:58:00,101 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:58:00,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:58:00,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:58:00,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:58:00,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:58:00,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:58:00,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:58:00,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:58:00,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:58:00,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:58:00,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:58:00,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:58:00,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:58:00,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:58:00,386 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:58:00,405 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:58:00,408 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:58:00,410 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:58:00,410 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:58:00,411 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product30.cil.c [2019-10-07 14:58:00,485 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98162f11d/f66484d8b66d49eb933ac943b64e91b6/FLAG39f999469 [2019-10-07 14:58:01,118 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:58:01,122 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product30.cil.c [2019-10-07 14:58:01,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98162f11d/f66484d8b66d49eb933ac943b64e91b6/FLAG39f999469 [2019-10-07 14:58:01,316 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98162f11d/f66484d8b66d49eb933ac943b64e91b6 [2019-10-07 14:58:01,327 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:58:01,328 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:58:01,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:58:01,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:58:01,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:58:01,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:58:01" (1/1) ... [2019-10-07 14:58:01,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f7e0ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:01, skipping insertion in model container [2019-10-07 14:58:01,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:58:01" (1/1) ... [2019-10-07 14:58:01,345 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:58:01,419 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:58:02,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:58:02,225 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:58:02,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:58:02,457 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:58:02,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:02 WrapperNode [2019-10-07 14:58:02,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:58:02,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:58:02,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:58:02,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:58:02,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:02" (1/1) ... [2019-10-07 14:58:02,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:02" (1/1) ... [2019-10-07 14:58:02,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:02" (1/1) ... [2019-10-07 14:58:02,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:02" (1/1) ... [2019-10-07 14:58:02,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:02" (1/1) ... [2019-10-07 14:58:02,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:02" (1/1) ... [2019-10-07 14:58:02,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:02" (1/1) ... [2019-10-07 14:58:02,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:58:02,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:58:02,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:58:02,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:58:02,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:58:02,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:58:02,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:58:02,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:58:02,799 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:58:02,799 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:58:02,800 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:58:02,800 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:58:02,800 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:58:02,801 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:58:02,801 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:58:02,801 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:58:02,802 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:58:02,802 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:58:02,803 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 14:58:02,803 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:58:02,803 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 14:58:02,805 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:58:02,806 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:58:02,806 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:58:02,806 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:58:02,806 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:58:02,807 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:58:02,807 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:58:02,807 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:58:02,807 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:58:02,808 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:58:02,808 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:58:02,808 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:58:02,808 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:58:02,808 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-07 14:58:02,808 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 14:58:02,809 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:58:02,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:58:02,810 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:58:02,810 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:58:02,810 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:58:02,810 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:58:02,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:58:02,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:58:02,811 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:58:02,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:58:02,812 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:58:02,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:58:02,812 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:58:02,812 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:58:02,812 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:58:02,813 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:58:02,813 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:58:02,813 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:58:02,813 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:58:02,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:58:02,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:58:02,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:58:02,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:58:02,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:58:02,815 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:58:02,815 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:58:02,815 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:58:02,815 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:58:02,816 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:58:02,816 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:58:02,817 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:58:02,817 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:58:02,817 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:58:02,817 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:58:02,817 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:58:02,818 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:58:02,818 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:58:02,818 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:58:02,818 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:58:02,818 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:58:02,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:58:02,819 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:58:02,820 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:58:02,820 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:58:02,820 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:58:02,821 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:58:02,821 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:58:02,821 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:58:02,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:58:02,822 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:58:02,823 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:58:02,823 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:58:02,823 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:58:02,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:58:02,824 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:58:02,824 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:58:02,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:58:02,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:58:02,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:58:02,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:58:02,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:58:02,826 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:58:02,826 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:58:02,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:58:02,826 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:58:02,826 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:58:02,826 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:58:02,826 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:58:02,827 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:58:02,827 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:58:02,827 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:58:02,827 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:58:02,827 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:58:02,827 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:58:02,828 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:58:02,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:58:02,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:58:02,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:58:02,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:58:02,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:58:02,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:58:02,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:58:02,829 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:58:02,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:58:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:58:02,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:58:02,830 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:58:02,830 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:58:02,831 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:58:02,831 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:58:02,831 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:58:02,831 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:58:02,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:58:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:58:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:58:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:58:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:58:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:58:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:58:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:58:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:58:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:58:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:58:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:58:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:58:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:58:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:58:02,841 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:58:02,841 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:58:02,842 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:58:02,842 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:58:02,842 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:58:02,843 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:58:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:58:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:58:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:58:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:58:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:58:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:58:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:58:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:58:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:58:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:58:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:58:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:58:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:58:02,853 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:58:02,853 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:58:02,853 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:58:02,853 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:58:02,854 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:58:02,854 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:58:02,854 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:58:02,854 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 14:58:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:58:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 14:58:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:58:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:58:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:58:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:58:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:58:02,855 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-07 14:58:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 14:58:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:58:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:58:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:58:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:58:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:58:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:58:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:58:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:58:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:58:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:58:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:58:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:58:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:58:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:58:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:58:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:58:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:58:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:58:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:58:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:58:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:58:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:58:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:58:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:58:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:58:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:58:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:58:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:58:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:58:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:58:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:58:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:58:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:58:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:58:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:58:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:58:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:58:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:58:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:58:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:58:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:58:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:58:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:58:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:58:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:58:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:58:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:58:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:58:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:58:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:58:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:58:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:58:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:58:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:58:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:58:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:58:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:58:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:58:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:58:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:58:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:58:02,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:58:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:58:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:58:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:58:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:58:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:58:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:58:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:58:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:58:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:58:07,429 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:58:07,429 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:58:07,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:58:07 BoogieIcfgContainer [2019-10-07 14:58:07,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:58:07,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:58:07,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:58:07,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:58:07,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:58:01" (1/3) ... [2019-10-07 14:58:07,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af73734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:58:07, skipping insertion in model container [2019-10-07 14:58:07,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:02" (2/3) ... [2019-10-07 14:58:07,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af73734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:58:07, skipping insertion in model container [2019-10-07 14:58:07,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:58:07" (3/3) ... [2019-10-07 14:58:07,441 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product30.cil.c [2019-10-07 14:58:07,451 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:58:07,462 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:58:07,475 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:58:07,524 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:58:07,524 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:58:07,525 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:58:07,525 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:58:07,525 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:58:07,525 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:58:07,525 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:58:07,525 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:58:07,563 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states. [2019-10-07 14:58:07,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-07 14:58:07,597 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:07,600 INFO L385 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] [2019-10-07 14:58:07,604 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:07,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:07,610 INFO L82 PathProgramCache]: Analyzing trace with hash 35129417, now seen corresponding path program 1 times [2019-10-07 14:58:07,617 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:07,617 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:07,618 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:07,618 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:07,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:08,372 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:58:08,373 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:08,374 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:08,374 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:58:08,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:58:08,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:58:08,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:58:08,399 INFO L87 Difference]: Start difference. First operand 399 states. Second operand 2 states. [2019-10-07 14:58:08,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:08,495 INFO L93 Difference]: Finished difference Result 564 states and 668 transitions. [2019-10-07 14:58:08,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:58:08,498 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 129 [2019-10-07 14:58:08,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:08,516 INFO L225 Difference]: With dead ends: 564 [2019-10-07 14:58:08,516 INFO L226 Difference]: Without dead ends: 357 [2019-10-07 14:58:08,522 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:58:08,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2019-10-07 14:58:08,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2019-10-07 14:58:08,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2019-10-07 14:58:08,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 422 transitions. [2019-10-07 14:58:08,609 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 422 transitions. Word has length 129 [2019-10-07 14:58:08,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:08,612 INFO L462 AbstractCegarLoop]: Abstraction has 357 states and 422 transitions. [2019-10-07 14:58:08,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:58:08,612 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 422 transitions. [2019-10-07 14:58:08,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-07 14:58:08,621 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:08,621 INFO L385 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] [2019-10-07 14:58:08,621 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:08,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:08,622 INFO L82 PathProgramCache]: Analyzing trace with hash 732439400, now seen corresponding path program 1 times [2019-10-07 14:58:08,622 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:08,622 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:08,622 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:08,623 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:08,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:08,946 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:58:08,946 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:08,947 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:08,947 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:58:08,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:58:08,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:58:08,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:58:08,956 INFO L87 Difference]: Start difference. First operand 357 states and 422 transitions. Second operand 3 states. [2019-10-07 14:58:09,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:09,030 INFO L93 Difference]: Finished difference Result 549 states and 639 transitions. [2019-10-07 14:58:09,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:58:09,031 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2019-10-07 14:58:09,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:09,038 INFO L225 Difference]: With dead ends: 549 [2019-10-07 14:58:09,042 INFO L226 Difference]: Without dead ends: 359 [2019-10-07 14:58:09,047 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:58:09,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2019-10-07 14:58:09,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2019-10-07 14:58:09,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2019-10-07 14:58:09,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 424 transitions. [2019-10-07 14:58:09,102 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 424 transitions. Word has length 130 [2019-10-07 14:58:09,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:09,103 INFO L462 AbstractCegarLoop]: Abstraction has 359 states and 424 transitions. [2019-10-07 14:58:09,103 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:58:09,103 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 424 transitions. [2019-10-07 14:58:09,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-07 14:58:09,106 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:09,106 INFO L385 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] [2019-10-07 14:58:09,107 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:09,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:09,107 INFO L82 PathProgramCache]: Analyzing trace with hash -368302633, now seen corresponding path program 1 times [2019-10-07 14:58:09,107 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:09,107 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:09,108 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:09,108 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:09,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:09,283 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:58:09,284 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:09,284 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:09,284 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:58:09,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:58:09,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:58:09,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:58:09,285 INFO L87 Difference]: Start difference. First operand 359 states and 424 transitions. Second operand 3 states. [2019-10-07 14:58:09,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:09,338 INFO L93 Difference]: Finished difference Result 700 states and 855 transitions. [2019-10-07 14:58:09,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:58:09,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2019-10-07 14:58:09,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:09,344 INFO L225 Difference]: With dead ends: 700 [2019-10-07 14:58:09,344 INFO L226 Difference]: Without dead ends: 399 [2019-10-07 14:58:09,347 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:58:09,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-07 14:58:09,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 398. [2019-10-07 14:58:09,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2019-10-07 14:58:09,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 492 transitions. [2019-10-07 14:58:09,386 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 492 transitions. Word has length 139 [2019-10-07 14:58:09,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:09,386 INFO L462 AbstractCegarLoop]: Abstraction has 398 states and 492 transitions. [2019-10-07 14:58:09,386 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:58:09,387 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 492 transitions. [2019-10-07 14:58:09,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-07 14:58:09,393 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:09,393 INFO L385 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] [2019-10-07 14:58:09,393 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:09,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:09,394 INFO L82 PathProgramCache]: Analyzing trace with hash -979026137, now seen corresponding path program 1 times [2019-10-07 14:58:09,394 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:09,394 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:09,394 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:09,395 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:09,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:09,660 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:58:09,660 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:09,661 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:09,661 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:58:09,662 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:58:09,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:58:09,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:58:09,664 INFO L87 Difference]: Start difference. First operand 398 states and 492 transitions. Second operand 3 states. [2019-10-07 14:58:09,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:09,704 INFO L93 Difference]: Finished difference Result 814 states and 1054 transitions. [2019-10-07 14:58:09,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:58:09,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2019-10-07 14:58:09,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:09,711 INFO L225 Difference]: With dead ends: 814 [2019-10-07 14:58:09,711 INFO L226 Difference]: Without dead ends: 474 [2019-10-07 14:58:09,712 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:58:09,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2019-10-07 14:58:09,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 473. [2019-10-07 14:58:09,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2019-10-07 14:58:09,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 622 transitions. [2019-10-07 14:58:09,743 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 622 transitions. Word has length 140 [2019-10-07 14:58:09,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:09,744 INFO L462 AbstractCegarLoop]: Abstraction has 473 states and 622 transitions. [2019-10-07 14:58:09,744 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:58:09,744 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 622 transitions. [2019-10-07 14:58:09,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-07 14:58:09,748 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:09,749 INFO L385 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] [2019-10-07 14:58:09,749 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:09,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:09,749 INFO L82 PathProgramCache]: Analyzing trace with hash -439286021, now seen corresponding path program 1 times [2019-10-07 14:58:09,750 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:09,750 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:09,750 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:09,750 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:09,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:10,367 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:58:10,368 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:10,368 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:10,368 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-07 14:58:10,369 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-07 14:58:10,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-07 14:58:10,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2019-10-07 14:58:10,371 INFO L87 Difference]: Start difference. First operand 473 states and 622 transitions. Second operand 21 states. [2019-10-07 14:58:18,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:18,884 INFO L93 Difference]: Finished difference Result 871 states and 1082 transitions. [2019-10-07 14:58:18,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-07 14:58:18,885 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 143 [2019-10-07 14:58:18,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:18,891 INFO L225 Difference]: With dead ends: 871 [2019-10-07 14:58:18,892 INFO L226 Difference]: Without dead ends: 675 [2019-10-07 14:58:18,894 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2019-10-07 14:58:18,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2019-10-07 14:58:18,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 668. [2019-10-07 14:58:18,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2019-10-07 14:58:18,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 849 transitions. [2019-10-07 14:58:18,946 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 849 transitions. Word has length 143 [2019-10-07 14:58:18,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:18,947 INFO L462 AbstractCegarLoop]: Abstraction has 668 states and 849 transitions. [2019-10-07 14:58:18,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-07 14:58:18,947 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 849 transitions. [2019-10-07 14:58:18,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-07 14:58:18,950 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:18,951 INFO L385 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] [2019-10-07 14:58:18,951 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:18,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:18,951 INFO L82 PathProgramCache]: Analyzing trace with hash 568749428, now seen corresponding path program 1 times [2019-10-07 14:58:18,952 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:18,952 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:18,952 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:18,952 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:18,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:19,557 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:58:19,558 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:19,558 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:19,559 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-07 14:58:19,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-07 14:58:19,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-07 14:58:19,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:58:19,560 INFO L87 Difference]: Start difference. First operand 668 states and 849 transitions. Second operand 23 states. [2019-10-07 14:58:21,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:21,508 INFO L93 Difference]: Finished difference Result 746 states and 939 transitions. [2019-10-07 14:58:21,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-07 14:58:21,509 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 149 [2019-10-07 14:58:21,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:21,513 INFO L225 Difference]: With dead ends: 746 [2019-10-07 14:58:21,513 INFO L226 Difference]: Without dead ends: 710 [2019-10-07 14:58:21,515 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2019-10-07 14:58:21,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2019-10-07 14:58:21,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 705. [2019-10-07 14:58:21,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2019-10-07 14:58:21,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 886 transitions. [2019-10-07 14:58:21,562 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 886 transitions. Word has length 149 [2019-10-07 14:58:21,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:21,565 INFO L462 AbstractCegarLoop]: Abstraction has 705 states and 886 transitions. [2019-10-07 14:58:21,565 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-07 14:58:21,565 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 886 transitions. [2019-10-07 14:58:21,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2019-10-07 14:58:21,570 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:21,571 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 14:58:21,571 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:21,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:21,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1113073814, now seen corresponding path program 1 times [2019-10-07 14:58:21,572 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:21,572 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:21,572 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:21,572 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:21,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:22,291 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-07 14:58:22,292 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:22,292 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:22,292 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-07 14:58:22,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-07 14:58:22,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-07 14:58:22,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2019-10-07 14:58:22,294 INFO L87 Difference]: Start difference. First operand 705 states and 886 transitions. Second operand 28 states. [2019-10-07 14:58:31,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:31,914 INFO L93 Difference]: Finished difference Result 1362 states and 1648 transitions. [2019-10-07 14:58:31,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-10-07 14:58:31,914 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 257 [2019-10-07 14:58:31,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:31,929 INFO L225 Difference]: With dead ends: 1362 [2019-10-07 14:58:31,929 INFO L226 Difference]: Without dead ends: 1159 [2019-10-07 14:58:31,932 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=315, Invalid=3717, Unknown=0, NotChecked=0, Total=4032 [2019-10-07 14:58:31,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2019-10-07 14:58:32,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1088. [2019-10-07 14:58:32,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2019-10-07 14:58:32,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1317 transitions. [2019-10-07 14:58:32,014 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1317 transitions. Word has length 257 [2019-10-07 14:58:32,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:32,017 INFO L462 AbstractCegarLoop]: Abstraction has 1088 states and 1317 transitions. [2019-10-07 14:58:32,018 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-07 14:58:32,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1317 transitions. [2019-10-07 14:58:32,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2019-10-07 14:58:32,026 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:32,027 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2019-10-07 14:58:32,027 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:32,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:32,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1461416115, now seen corresponding path program 1 times [2019-10-07 14:58:32,028 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:32,028 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:32,028 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:32,028 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:32,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:32,350 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-07 14:58:32,350 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:32,351 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:32,351 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:58:32,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:58:32,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:58:32,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:58:32,356 INFO L87 Difference]: Start difference. First operand 1088 states and 1317 transitions. Second operand 10 states. [2019-10-07 14:58:32,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:32,462 INFO L93 Difference]: Finished difference Result 1579 states and 1853 transitions. [2019-10-07 14:58:32,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:58:32,463 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 261 [2019-10-07 14:58:32,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:32,474 INFO L225 Difference]: With dead ends: 1579 [2019-10-07 14:58:32,474 INFO L226 Difference]: Without dead ends: 1128 [2019-10-07 14:58:32,476 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:58:32,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2019-10-07 14:58:32,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1096. [2019-10-07 14:58:32,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1096 states. [2019-10-07 14:58:32,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1323 transitions. [2019-10-07 14:58:32,564 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1323 transitions. Word has length 261 [2019-10-07 14:58:32,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:32,564 INFO L462 AbstractCegarLoop]: Abstraction has 1096 states and 1323 transitions. [2019-10-07 14:58:32,564 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:58:32,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1323 transitions. [2019-10-07 14:58:32,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2019-10-07 14:58:32,572 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:32,573 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:58:32,573 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:32,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:32,574 INFO L82 PathProgramCache]: Analyzing trace with hash 689169505, now seen corresponding path program 1 times [2019-10-07 14:58:32,574 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:32,574 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:32,574 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:32,574 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:32,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:33,045 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-07 14:58:33,045 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:33,045 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:58:33,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:58:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:33,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 3366 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:58:33,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:58:33,905 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-10-07 14:58:33,905 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:58:34,634 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-07 14:58:34,635 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:58:34,669 INFO L162 IcfgInterpreter]: Started Sifa with 219 locations of interest [2019-10-07 14:58:34,669 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:58:34,677 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:58:34,685 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:58:34,686 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:59:26,958 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 675 [2019-10-07 14:59:30,649 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 296 DAG size of output: 241 [2019-10-07 14:59:31,080 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 711 [2019-10-07 14:59:31,407 WARN L191 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 711 [2019-10-07 14:59:31,783 WARN L191 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 711 [2019-10-07 14:59:31,983 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:59:32,643 WARN L191 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:59:33,267 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:59:33,930 WARN L191 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:59:34,072 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:59:34,713 WARN L191 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:59:36,132 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1007 DAG size of output: 1005 [2019-10-07 14:59:36,774 WARN L191 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:59:36,955 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:59:37,552 WARN L191 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:59:38,224 WARN L191 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:59:38,829 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:59:38,948 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:59:39,575 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 1005 [2019-10-07 14:59:39,600 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 553 for LOIs [2019-10-07 14:59:40,035 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 14:59:40,216 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 14:59:40,348 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:59:40,819 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 936 [2019-10-07 14:59:40,821 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1045 for LOIs [2019-10-07 14:59:41,451 WARN L191 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 14:59:42,026 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 14:59:42,231 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:59:43,110 WARN L191 SmtUtils]: Spent 877.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 14:59:43,691 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 14:59:44,331 WARN L191 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 14:59:44,536 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:59:45,382 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 14:59:46,067 WARN L191 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 14:59:46,649 WARN L191 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 14:59:46,861 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:59:47,767 WARN L191 SmtUtils]: Spent 904.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 14:59:48,954 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 1183 DAG size of output: 1045 [2019-10-07 14:59:49,549 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 14:59:49,936 WARN L191 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:59:50,777 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 14:59:51,388 WARN L191 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 14:59:51,960 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 14:59:52,163 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:59:53,005 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 14:59:53,574 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 14:59:54,148 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 14:59:54,346 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:59:55,228 WARN L191 SmtUtils]: Spent 880.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 14:59:55,800 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 14:59:56,377 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 14:59:56,655 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:59:57,519 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 14:59:58,100 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 14:59:58,678 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 14:59:58,882 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:59:59,769 WARN L191 SmtUtils]: Spent 885.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:00,343 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 15:00:00,916 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 15:00:01,128 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:02,059 WARN L191 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:02,639 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 15:00:03,221 WARN L191 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 15:00:03,442 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:04,311 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:04,884 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 15:00:05,463 WARN L191 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 15:00:05,667 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:06,528 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:07,104 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 15:00:07,697 WARN L191 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 15:00:07,913 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:08,775 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:09,354 WARN L191 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 15:00:09,950 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 1045 [2019-10-07 15:00:10,153 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:11,007 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:11,926 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:12,803 WARN L191 SmtUtils]: Spent 873.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:13,032 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:13,891 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:15,429 WARN L191 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 1183 DAG size of output: 1181 [2019-10-07 15:00:16,282 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:16,512 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:17,371 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:18,230 WARN L191 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:19,084 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:19,287 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:20,145 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:21,048 WARN L191 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 1183 [2019-10-07 15:00:21,909 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1183 [2019-10-07 15:00:22,120 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:00:22,992 WARN L191 SmtUtils]: Spent 869.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 15:00:24,574 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1187 DAG size of output: 1185 [2019-10-07 15:00:25,432 WARN L191 SmtUtils]: Spent 854.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 15:00:25,649 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:00:26,501 WARN L191 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 15:00:28,045 WARN L191 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 1187 DAG size of output: 1183 [2019-10-07 15:00:28,894 WARN L191 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 1183 [2019-10-07 15:00:29,096 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:00:29,947 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 15:00:30,995 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1183 [2019-10-07 15:00:31,849 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1183 [2019-10-07 15:00:32,074 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:00:32,927 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 15:00:33,783 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 15:00:34,646 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 15:00:34,862 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:00:35,726 WARN L191 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 1187 [2019-10-07 15:00:37,311 WARN L191 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 1183 DAG size of output: 1181 [2019-10-07 15:00:38,187 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:38,399 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:39,253 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:40,976 WARN L191 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 1183 DAG size of output: 1181 [2019-10-07 15:00:41,834 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:42,051 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:42,898 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:43,750 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:44,596 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:44,803 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:45,665 WARN L191 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:47,235 WARN L191 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 1183 DAG size of output: 1181 [2019-10-07 15:00:48,088 WARN L191 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:48,297 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:49,154 WARN L191 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:51,037 WARN L191 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 1183 DAG size of output: 1181 [2019-10-07 15:00:51,899 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:52,109 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:52,969 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:53,819 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:54,678 WARN L191 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:54,877 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:55,735 WARN L191 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 1181 [2019-10-07 15:00:57,321 WARN L191 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1187 DAG size of output: 1185 [2019-10-07 15:00:58,183 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 15:00:58,399 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:00:59,267 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 15:01:00,822 WARN L191 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 1187 DAG size of output: 1183 [2019-10-07 15:01:01,683 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1183 [2019-10-07 15:01:01,893 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:01:02,750 WARN L191 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 15:01:04,293 WARN L191 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 1187 DAG size of output: 1183 [2019-10-07 15:01:05,143 WARN L191 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 1183 [2019-10-07 15:01:05,350 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:01:06,216 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 15:01:07,764 WARN L191 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 1187 DAG size of output: 1183 [2019-10-07 15:01:08,626 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1183 [2019-10-07 15:01:08,842 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:01:09,699 WARN L191 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 15:01:11,169 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1189 DAG size of output: 1185 [2019-10-07 15:01:12,049 WARN L191 SmtUtils]: Spent 875.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 15:01:12,261 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:01:13,136 WARN L191 SmtUtils]: Spent 873.00 ms on a formula simplification that was a NOOP. DAG size: 1187 [2019-10-07 15:01:13,401 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:01:13,402 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:01:13,409 INFO L168 Benchmark]: Toolchain (without parser) took 192080.86 ms. Allocated memory was 141.6 MB in the beginning and 626.0 MB in the end (delta: 484.4 MB). Free memory was 100.0 MB in the beginning and 518.8 MB in the end (delta: -418.8 MB). Peak memory consumption was 65.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:01:13,410 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 15:01:13,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1128.83 ms. Allocated memory was 141.6 MB in the beginning and 202.4 MB in the end (delta: 60.8 MB). Free memory was 99.8 MB in the beginning and 137.8 MB in the end (delta: -37.9 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:01:13,411 INFO L168 Benchmark]: Boogie Preprocessor took 247.21 ms. Allocated memory is still 202.4 MB. Free memory was 137.0 MB in the beginning and 127.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:01:13,413 INFO L168 Benchmark]: RCFGBuilder took 4722.94 ms. Allocated memory was 202.4 MB in the beginning and 309.9 MB in the end (delta: 107.5 MB). Free memory was 127.4 MB in the beginning and 119.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 115.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:01:13,413 INFO L168 Benchmark]: TraceAbstraction took 185974.98 ms. Allocated memory was 309.9 MB in the beginning and 626.0 MB in the end (delta: 316.1 MB). Free memory was 119.3 MB in the beginning and 518.8 MB in the end (delta: -399.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 15:01:13,418 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1128.83 ms. Allocated memory was 141.6 MB in the beginning and 202.4 MB in the end (delta: 60.8 MB). Free memory was 99.8 MB in the beginning and 137.8 MB in the end (delta: -37.9 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 247.21 ms. Allocated memory is still 202.4 MB. Free memory was 137.0 MB in the beginning and 127.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4722.94 ms. Allocated memory was 202.4 MB in the beginning and 309.9 MB in the end (delta: 107.5 MB). Free memory was 127.4 MB in the beginning and 119.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 115.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 185974.98 ms. Allocated memory was 309.9 MB in the beginning and 626.0 MB in the end (delta: 316.1 MB). Free memory was 119.3 MB in the beginning and 518.8 MB in the end (delta: -399.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...