/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:47:28,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:47:28,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:47:28,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:47:28,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:47:28,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:47:28,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:47:28,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:47:28,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:47:28,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:47:28,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:47:28,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:47:28,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:47:28,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:47:28,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:47:28,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:47:28,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:47:28,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:47:28,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:47:28,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:47:28,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:47:28,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:47:28,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:47:28,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:47:28,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:47:28,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:47:28,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:47:28,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:47:28,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:47:28,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:47:28,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:47:28,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:47:28,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:47:28,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:47:28,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:47:28,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:47:28,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:47:28,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:47:28,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:47:28,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:47:28,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:47:28,137 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:47:28,155 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:47:28,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:47:28,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:47:28,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:47:28,159 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:47:28,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:47:28,159 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:47:28,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:47:28,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:47:28,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:47:28,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:47:28,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:47:28,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:47:28,162 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:47:28,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:47:28,162 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:47:28,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:47:28,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:47:28,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:47:28,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:47:28,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:47:28,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:47:28,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:47:28,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:47:28,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:47:28,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:47:28,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:47:28,165 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:47:28,165 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:47:28,469 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:47:28,482 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:47:28,485 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:47:28,486 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:47:28,487 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:47:28,487 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product35.cil.c [2019-11-07 00:47:28,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13fc026fb/88ea4447d561461fac266b55030db6f9/FLAG4d78c7a2a [2019-11-07 00:47:29,131 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:47:29,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product35.cil.c [2019-11-07 00:47:29,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13fc026fb/88ea4447d561461fac266b55030db6f9/FLAG4d78c7a2a [2019-11-07 00:47:29,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13fc026fb/88ea4447d561461fac266b55030db6f9 [2019-11-07 00:47:29,329 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:47:29,331 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:47:29,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:47:29,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:47:29,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:47:29,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:47:29" (1/1) ... [2019-11-07 00:47:29,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@777a3d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:29, skipping insertion in model container [2019-11-07 00:47:29,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:47:29" (1/1) ... [2019-11-07 00:47:29,348 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:47:29,424 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:47:30,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:47:30,270 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:47:30,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:47:30,516 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:47:30,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:30 WrapperNode [2019-11-07 00:47:30,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:47:30,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:47:30,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:47:30,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:47:30,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:30" (1/1) ... [2019-11-07 00:47:30,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:30" (1/1) ... [2019-11-07 00:47:30,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:30" (1/1) ... [2019-11-07 00:47:30,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:30" (1/1) ... [2019-11-07 00:47:30,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:30" (1/1) ... [2019-11-07 00:47:30,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:30" (1/1) ... [2019-11-07 00:47:30,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:30" (1/1) ... [2019-11-07 00:47:30,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:47:30,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:47:30,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:47:30,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:47:30,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:47:30,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:47:30,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:47:30,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:47:30,814 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:47:30,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:47:30,815 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:47:30,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:47:30,816 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:47:30,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:47:30,817 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:47:30,817 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:47:30,817 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:47:30,817 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:47:30,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:47:30,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:47:30,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:47:30,822 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:47:30,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:47:30,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:47:30,823 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:47:30,823 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:47:30,824 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:47:30,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:47:30,824 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:47:30,825 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:47:30,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:47:30,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:47:30,828 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:47:30,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:47:30,828 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:47:30,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:47:30,829 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:47:30,829 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:47:30,829 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:47:30,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:47:30,829 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:47:30,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:47:30,830 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:47:30,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:47:30,830 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:47:30,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:47:30,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:47:30,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:47:30,831 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:47:30,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:47:30,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:47:30,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:47:30,832 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:47:30,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:47:30,832 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:47:30,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:47:30,832 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:47:30,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:47:30,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-11-07 00:47:30,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:47:30,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:47:30,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:47:30,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:47:30,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:47:30,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:47:30,834 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:47:30,834 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:47:30,834 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:47:30,835 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 00:47:30,835 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 00:47:30,835 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:47:30,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:47:30,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:47:30,835 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:47:30,836 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:47:30,836 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:47:30,836 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:47:30,836 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:47:30,837 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 00:47:30,837 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:47:30,837 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:47:30,838 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 00:47:30,838 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 00:47:30,838 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 00:47:30,839 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 00:47:30,839 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:47:30,839 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:47:30,839 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:47:30,839 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:47:30,839 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:47:30,840 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:47:30,841 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:47:30,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:47:30,842 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:47:30,842 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 00:47:30,842 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 00:47:30,842 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:47:30,843 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 00:47:30,843 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:47:30,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:47:30,843 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:47:30,843 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:47:30,843 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:47:30,844 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:47:30,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:47:30,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:47:30,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:47:30,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:47:30,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:47:30,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:47:30,845 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:47:30,845 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:47:30,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:47:30,845 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:47:30,845 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:47:30,845 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:47:30,846 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:47:30,846 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:47:30,846 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:47:30,846 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:47:30,846 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:47:30,846 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:47:30,846 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:47:30,847 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 00:47:30,847 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 00:47:30,848 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 00:47:30,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:47:30,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:47:30,848 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:47:30,849 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:47:30,849 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:47:30,850 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:47:30,850 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:47:30,850 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:47:30,850 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:47:30,850 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:47:30,851 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:47:30,851 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:47:30,851 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:47:30,852 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:47:30,853 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:47:30,853 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:47:30,857 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:47:30,857 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:47:30,858 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:47:30,859 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:47:30,859 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:47:30,859 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:47:30,860 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:47:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:47:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:47:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:47:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:47:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:47:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:47:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:47:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:47:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:47:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:47:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:47:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:47:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:47:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:47:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:47:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:47:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:47:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:47:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:47:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:47:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:47:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:47:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:47:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:47:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:47:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:47:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:47:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:47:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:47:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:47:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:47:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:47:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-11-07 00:47:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:47:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:47:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:47:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:47:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:47:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:47:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:47:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:47:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:47:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:47:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:47:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:47:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:47:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:47:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:47:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:47:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:47:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:47:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 00:47:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:47:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:47:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:47:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 00:47:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:47:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 00:47:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:47:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:47:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:47:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:47:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:47:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:47:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:47:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:47:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:47:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:47:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 00:47:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 00:47:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:47:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:47:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:47:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:47:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:47:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:47:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:47:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:47:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:47:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:47:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:47:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:47:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:47:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 00:47:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 00:47:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:47:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 00:47:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:47:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:47:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:47:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 00:47:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 00:47:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 00:47:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 00:47:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 00:47:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:47:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:47:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:47:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:47:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:47:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:47:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:47:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:47:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:47:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:47:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:47:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:47:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:47:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:47:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:47:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:47:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:47:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:47:33,280 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:47:33,280 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:47:33,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:47:33 BoogieIcfgContainer [2019-11-07 00:47:33,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:47:33,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:47:33,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:47:33,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:47:33,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:47:29" (1/3) ... [2019-11-07 00:47:33,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac8e773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:47:33, skipping insertion in model container [2019-11-07 00:47:33,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:30" (2/3) ... [2019-11-07 00:47:33,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac8e773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:47:33, skipping insertion in model container [2019-11-07 00:47:33,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:47:33" (3/3) ... [2019-11-07 00:47:33,293 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product35.cil.c [2019-11-07 00:47:33,303 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:47:33,315 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:47:33,330 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:47:33,371 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:47:33,371 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:47:33,372 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:47:33,372 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:47:33,372 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:47:33,372 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:47:33,372 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:47:33,372 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:47:33,419 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states. [2019-11-07 00:47:33,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-11-07 00:47:33,452 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:33,454 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:47:33,456 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:33,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:33,462 INFO L82 PathProgramCache]: Analyzing trace with hash 425045218, now seen corresponding path program 1 times [2019-11-07 00:47:33,473 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:33,473 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691580263] [2019-11-07 00:47:33,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:34,234 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 00:47:34,235 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691580263] [2019-11-07 00:47:34,236 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:34,236 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:47:34,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936457230] [2019-11-07 00:47:34,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:47:34,245 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:34,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:47:34,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:47:34,264 INFO L87 Difference]: Start difference. First operand 680 states. Second operand 2 states. [2019-11-07 00:47:34,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:34,372 INFO L93 Difference]: Finished difference Result 1035 states and 1396 transitions. [2019-11-07 00:47:34,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:47:34,373 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 227 [2019-11-07 00:47:34,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:34,412 INFO L225 Difference]: With dead ends: 1035 [2019-11-07 00:47:34,413 INFO L226 Difference]: Without dead ends: 651 [2019-11-07 00:47:34,425 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:47:34,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2019-11-07 00:47:34,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 651. [2019-11-07 00:47:34,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2019-11-07 00:47:34,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 881 transitions. [2019-11-07 00:47:34,588 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 881 transitions. Word has length 227 [2019-11-07 00:47:34,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:34,591 INFO L462 AbstractCegarLoop]: Abstraction has 651 states and 881 transitions. [2019-11-07 00:47:34,591 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:47:34,592 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 881 transitions. [2019-11-07 00:47:34,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2019-11-07 00:47:34,601 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:34,602 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:47:34,602 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:34,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:34,603 INFO L82 PathProgramCache]: Analyzing trace with hash -953379524, now seen corresponding path program 1 times [2019-11-07 00:47:34,603 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:34,603 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956380691] [2019-11-07 00:47:34,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:35,006 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 00:47:35,007 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956380691] [2019-11-07 00:47:35,007 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:35,007 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:47:35,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888082402] [2019-11-07 00:47:35,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:47:35,010 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:35,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:47:35,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:47:35,011 INFO L87 Difference]: Start difference. First operand 651 states and 881 transitions. Second operand 3 states. [2019-11-07 00:47:35,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:35,112 INFO L93 Difference]: Finished difference Result 1018 states and 1356 transitions. [2019-11-07 00:47:35,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:47:35,113 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2019-11-07 00:47:35,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:35,126 INFO L225 Difference]: With dead ends: 1018 [2019-11-07 00:47:35,127 INFO L226 Difference]: Without dead ends: 654 [2019-11-07 00:47:35,130 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:47:35,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2019-11-07 00:47:35,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 653. [2019-11-07 00:47:35,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2019-11-07 00:47:35,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 883 transitions. [2019-11-07 00:47:35,178 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 883 transitions. Word has length 228 [2019-11-07 00:47:35,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:35,180 INFO L462 AbstractCegarLoop]: Abstraction has 653 states and 883 transitions. [2019-11-07 00:47:35,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:47:35,180 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 883 transitions. [2019-11-07 00:47:35,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-11-07 00:47:35,186 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:35,187 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:47:35,187 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:35,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:35,188 INFO L82 PathProgramCache]: Analyzing trace with hash 416765675, now seen corresponding path program 1 times [2019-11-07 00:47:35,188 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:35,188 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692777844] [2019-11-07 00:47:35,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:35,466 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 00:47:35,467 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692777844] [2019-11-07 00:47:35,467 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:35,467 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:47:35,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830491190] [2019-11-07 00:47:35,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:47:35,471 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:35,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:47:35,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:47:35,471 INFO L87 Difference]: Start difference. First operand 653 states and 883 transitions. Second operand 3 states. [2019-11-07 00:47:35,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:35,521 INFO L93 Difference]: Finished difference Result 1286 states and 1770 transitions. [2019-11-07 00:47:35,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:47:35,522 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2019-11-07 00:47:35,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:35,534 INFO L225 Difference]: With dead ends: 1286 [2019-11-07 00:47:35,534 INFO L226 Difference]: Without dead ends: 698 [2019-11-07 00:47:35,537 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:47:35,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2019-11-07 00:47:35,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 697. [2019-11-07 00:47:35,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2019-11-07 00:47:35,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 958 transitions. [2019-11-07 00:47:35,583 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 958 transitions. Word has length 240 [2019-11-07 00:47:35,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:35,584 INFO L462 AbstractCegarLoop]: Abstraction has 697 states and 958 transitions. [2019-11-07 00:47:35,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:47:35,584 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 958 transitions. [2019-11-07 00:47:35,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-11-07 00:47:35,589 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:35,590 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:47:35,590 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:35,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:35,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1867683247, now seen corresponding path program 1 times [2019-11-07 00:47:35,592 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:35,592 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336788391] [2019-11-07 00:47:35,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:35,801 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 00:47:35,801 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336788391] [2019-11-07 00:47:35,802 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:35,802 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:47:35,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544986742] [2019-11-07 00:47:35,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:47:35,804 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:35,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:47:35,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:47:35,805 INFO L87 Difference]: Start difference. First operand 697 states and 958 transitions. Second operand 3 states. [2019-11-07 00:47:35,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:35,851 INFO L93 Difference]: Finished difference Result 1415 states and 1990 transitions. [2019-11-07 00:47:35,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:47:35,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2019-11-07 00:47:35,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:35,859 INFO L225 Difference]: With dead ends: 1415 [2019-11-07 00:47:35,859 INFO L226 Difference]: Without dead ends: 783 [2019-11-07 00:47:35,863 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:47:35,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2019-11-07 00:47:35,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 782. [2019-11-07 00:47:35,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2019-11-07 00:47:36,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1102 transitions. [2019-11-07 00:47:36,005 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1102 transitions. Word has length 241 [2019-11-07 00:47:36,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:36,005 INFO L462 AbstractCegarLoop]: Abstraction has 782 states and 1102 transitions. [2019-11-07 00:47:36,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:47:36,006 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1102 transitions. [2019-11-07 00:47:36,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-11-07 00:47:36,012 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:36,012 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1] [2019-11-07 00:47:36,013 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:36,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:36,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1661984966, now seen corresponding path program 1 times [2019-11-07 00:47:36,013 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:36,015 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788767095] [2019-11-07 00:47:36,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:36,609 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-11-07 00:47:36,609 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788767095] [2019-11-07 00:47:36,610 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:36,610 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-11-07 00:47:36,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323920362] [2019-11-07 00:47:36,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-07 00:47:36,612 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:36,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-07 00:47:36,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-11-07 00:47:36,613 INFO L87 Difference]: Start difference. First operand 782 states and 1102 transitions. Second operand 19 states. [2019-11-07 00:47:43,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:43,065 INFO L93 Difference]: Finished difference Result 2650 states and 3737 transitions. [2019-11-07 00:47:43,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-11-07 00:47:43,065 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 244 [2019-11-07 00:47:43,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:43,081 INFO L225 Difference]: With dead ends: 2650 [2019-11-07 00:47:43,081 INFO L226 Difference]: Without dead ends: 2299 [2019-11-07 00:47:43,085 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-11-07 00:47:43,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2299 states. [2019-11-07 00:47:43,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2299 to 2262. [2019-11-07 00:47:43,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2262 states. [2019-11-07 00:47:43,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 3204 transitions. [2019-11-07 00:47:43,211 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 3204 transitions. Word has length 244 [2019-11-07 00:47:43,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:43,212 INFO L462 AbstractCegarLoop]: Abstraction has 2262 states and 3204 transitions. [2019-11-07 00:47:43,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-07 00:47:43,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 3204 transitions. [2019-11-07 00:47:43,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-11-07 00:47:43,224 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:43,224 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2019-11-07 00:47:43,225 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:43,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:43,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1677626999, now seen corresponding path program 1 times [2019-11-07 00:47:43,225 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:43,225 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735609603] [2019-11-07 00:47:43,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:43,697 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-11-07 00:47:43,697 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735609603] [2019-11-07 00:47:43,698 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:43,699 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-11-07 00:47:43,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682433745] [2019-11-07 00:47:43,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-07 00:47:43,700 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:43,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-07 00:47:43,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-11-07 00:47:43,701 INFO L87 Difference]: Start difference. First operand 2262 states and 3204 transitions. Second operand 18 states. [2019-11-07 00:47:44,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:44,314 INFO L93 Difference]: Finished difference Result 3915 states and 5505 transitions. [2019-11-07 00:47:44,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-07 00:47:44,314 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 245 [2019-11-07 00:47:44,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:44,340 INFO L225 Difference]: With dead ends: 3915 [2019-11-07 00:47:44,340 INFO L226 Difference]: Without dead ends: 2444 [2019-11-07 00:47:44,347 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-11-07 00:47:44,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2444 states. [2019-11-07 00:47:44,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 2444. [2019-11-07 00:47:44,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2444 states. [2019-11-07 00:47:44,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 3473 transitions. [2019-11-07 00:47:44,472 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 3473 transitions. Word has length 245 [2019-11-07 00:47:44,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:44,473 INFO L462 AbstractCegarLoop]: Abstraction has 2444 states and 3473 transitions. [2019-11-07 00:47:44,473 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-07 00:47:44,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 3473 transitions. [2019-11-07 00:47:44,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-11-07 00:47:44,484 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:44,485 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2019-11-07 00:47:44,485 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:44,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:44,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1407477613, now seen corresponding path program 1 times [2019-11-07 00:47:44,485 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:44,486 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774404213] [2019-11-07 00:47:44,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:44,929 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-11-07 00:47:44,930 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774404213] [2019-11-07 00:47:44,930 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:44,930 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-11-07 00:47:44,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24394115] [2019-11-07 00:47:44,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-07 00:47:44,932 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:44,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-07 00:47:44,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-11-07 00:47:44,933 INFO L87 Difference]: Start difference. First operand 2444 states and 3473 transitions. Second operand 15 states. [2019-11-07 00:47:49,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:49,186 INFO L93 Difference]: Finished difference Result 4117 states and 5799 transitions. [2019-11-07 00:47:49,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-11-07 00:47:49,187 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 245 [2019-11-07 00:47:49,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:49,204 INFO L225 Difference]: With dead ends: 4117 [2019-11-07 00:47:49,204 INFO L226 Difference]: Without dead ends: 2544 [2019-11-07 00:47:49,210 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-11-07 00:47:49,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2019-11-07 00:47:49,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2514. [2019-11-07 00:47:49,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2514 states. [2019-11-07 00:47:49,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2514 states to 2514 states and 3589 transitions. [2019-11-07 00:47:49,316 INFO L78 Accepts]: Start accepts. Automaton has 2514 states and 3589 transitions. Word has length 245 [2019-11-07 00:47:49,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:49,317 INFO L462 AbstractCegarLoop]: Abstraction has 2514 states and 3589 transitions. [2019-11-07 00:47:49,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-07 00:47:49,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2514 states and 3589 transitions. [2019-11-07 00:47:49,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-11-07 00:47:49,327 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:49,327 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1] [2019-11-07 00:47:49,327 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:49,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:49,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1698334284, now seen corresponding path program 1 times [2019-11-07 00:47:49,328 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:49,328 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263960045] [2019-11-07 00:47:49,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:49,521 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-11-07 00:47:49,522 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263960045] [2019-11-07 00:47:49,522 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:49,522 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:47:49,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296059399] [2019-11-07 00:47:49,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:47:49,524 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:49,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:47:49,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:47:49,524 INFO L87 Difference]: Start difference. First operand 2514 states and 3589 transitions. Second operand 5 states. [2019-11-07 00:47:50,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:50,976 INFO L93 Difference]: Finished difference Result 6250 states and 8975 transitions. [2019-11-07 00:47:50,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:47:50,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 245 [2019-11-07 00:47:50,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:51,010 INFO L225 Difference]: With dead ends: 6250 [2019-11-07 00:47:51,010 INFO L226 Difference]: Without dead ends: 5415 [2019-11-07 00:47:51,018 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:47:51,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5415 states. [2019-11-07 00:47:51,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5415 to 5397. [2019-11-07 00:47:51,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5397 states. [2019-11-07 00:47:51,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5397 states to 5397 states and 7750 transitions. [2019-11-07 00:47:51,336 INFO L78 Accepts]: Start accepts. Automaton has 5397 states and 7750 transitions. Word has length 245 [2019-11-07 00:47:51,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:51,337 INFO L462 AbstractCegarLoop]: Abstraction has 5397 states and 7750 transitions. [2019-11-07 00:47:51,338 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:47:51,338 INFO L276 IsEmpty]: Start isEmpty. Operand 5397 states and 7750 transitions. [2019-11-07 00:47:51,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-11-07 00:47:51,360 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:51,361 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1] [2019-11-07 00:47:51,361 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:51,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:51,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1684084139, now seen corresponding path program 1 times [2019-11-07 00:47:51,362 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:51,363 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36108929] [2019-11-07 00:47:51,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:51,720 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-11-07 00:47:51,720 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36108929] [2019-11-07 00:47:51,720 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041769114] [2019-11-07 00:47:51,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:47:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:52,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 3311 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 00:47:52,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:47:53,251 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 00:47:53,251 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:47:53,599 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:47:53,686 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:47:53,764 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:47:53,905 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-11-07 00:47:53,905 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:47:53,905 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 9] total 20 [2019-11-07 00:47:53,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902246451] [2019-11-07 00:47:53,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 00:47:53,907 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:53,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 00:47:53,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2019-11-07 00:47:53,907 INFO L87 Difference]: Start difference. First operand 5397 states and 7750 transitions. Second operand 9 states. [2019-11-07 00:47:55,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:55,881 INFO L93 Difference]: Finished difference Result 10772 states and 15480 transitions. [2019-11-07 00:47:55,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 00:47:55,882 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 245 [2019-11-07 00:47:55,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:55,917 INFO L225 Difference]: With dead ends: 10772 [2019-11-07 00:47:55,917 INFO L226 Difference]: Without dead ends: 5411 [2019-11-07 00:47:55,941 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 484 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2019-11-07 00:47:55,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5411 states. [2019-11-07 00:47:56,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5411 to 5411. [2019-11-07 00:47:56,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5411 states. [2019-11-07 00:47:56,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5411 states to 5411 states and 7768 transitions. [2019-11-07 00:47:56,234 INFO L78 Accepts]: Start accepts. Automaton has 5411 states and 7768 transitions. Word has length 245 [2019-11-07 00:47:56,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:56,234 INFO L462 AbstractCegarLoop]: Abstraction has 5411 states and 7768 transitions. [2019-11-07 00:47:56,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 00:47:56,234 INFO L276 IsEmpty]: Start isEmpty. Operand 5411 states and 7768 transitions. [2019-11-07 00:47:56,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-11-07 00:47:56,249 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:56,249 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2019-11-07 00:47:56,450 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:47:56,450 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:56,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:56,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1955404021, now seen corresponding path program 1 times [2019-11-07 00:47:56,451 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:56,452 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987947117] [2019-11-07 00:47:56,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:56,742 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-11-07 00:47:56,743 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987947117] [2019-11-07 00:47:56,743 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353205938] [2019-11-07 00:47:56,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:47:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:57,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 3312 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-07 00:47:57,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:47:57,764 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 00:47:57,765 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:47:58,102 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:47:58,148 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:47:58,213 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-11-07 00:47:58,214 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:47:58,214 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 16 [2019-11-07 00:47:58,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927180549] [2019-11-07 00:47:58,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:47:58,215 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:58,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:47:58,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2019-11-07 00:47:58,216 INFO L87 Difference]: Start difference. First operand 5411 states and 7768 transitions. Second operand 7 states. [2019-11-07 00:48:00,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:48:00,581 INFO L93 Difference]: Finished difference Result 10777 states and 15500 transitions. [2019-11-07 00:48:00,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:48:00,581 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 246 [2019-11-07 00:48:00,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:48:00,615 INFO L225 Difference]: With dead ends: 10777 [2019-11-07 00:48:00,615 INFO L226 Difference]: Without dead ends: 5417 [2019-11-07 00:48:00,638 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 491 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2019-11-07 00:48:00,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5417 states. [2019-11-07 00:48:00,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5417 to 5417. [2019-11-07 00:48:00,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5417 states. [2019-11-07 00:48:00,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5417 states to 5417 states and 7775 transitions. [2019-11-07 00:48:00,879 INFO L78 Accepts]: Start accepts. Automaton has 5417 states and 7775 transitions. Word has length 246 [2019-11-07 00:48:00,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:48:00,880 INFO L462 AbstractCegarLoop]: Abstraction has 5417 states and 7775 transitions. [2019-11-07 00:48:00,880 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:48:00,880 INFO L276 IsEmpty]: Start isEmpty. Operand 5417 states and 7775 transitions. [2019-11-07 00:48:00,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-11-07 00:48:00,896 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:00,896 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:48:01,104 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:48:01,104 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:01,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:01,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1131930901, now seen corresponding path program 1 times [2019-11-07 00:48:01,105 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:01,105 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274606859] [2019-11-07 00:48:01,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:01,345 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-11-07 00:48:01,345 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274606859] [2019-11-07 00:48:01,346 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996007363] [2019-11-07 00:48:01,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:48:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:02,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 3313 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 00:48:02,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:48:02,267 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-07 00:48:02,267 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:48:02,617 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:48:02,691 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:48:02,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms