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 -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 13:39:39,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 13:39:39,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 13:39:39,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 13:39:39,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 13:39:39,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 13:39:39,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 13:39:39,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 13:39:39,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 13:39:39,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 13:39:39,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 13:39:39,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 13:39:39,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 13:39:39,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 13:39:39,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 13:39:39,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 13:39:39,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 13:39:39,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 13:39:39,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 13:39:39,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 13:39:39,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 13:39:39,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 13:39:39,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 13:39:39,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 13:39:39,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 13:39:39,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 13:39:39,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 13:39:39,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 13:39:39,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 13:39:39,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 13:39:39,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 13:39:39,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 13:39:39,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 13:39:39,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 13:39:39,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 13:39:39,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 13:39:39,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 13:39:39,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 13:39:39,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 13:39:39,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 13:39:39,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 13:39:39,462 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-02 13:39:39,496 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 13:39:39,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 13:39:39,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 13:39:39,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 13:39:39,498 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 13:39:39,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 13:39:39,498 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 13:39:39,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 13:39:39,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 13:39:39,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 13:39:39,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 13:39:39,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 13:39:39,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 13:39:39,500 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 13:39:39,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 13:39:39,500 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 13:39:39,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 13:39:39,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 13:39:39,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 13:39:39,501 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 13:39:39,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 13:39:39,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 13:39:39,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 13:39:39,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 13:39:39,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 13:39:39,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 13:39:39,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 13:39:39,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 13:39:39,502 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 13:39:39,538 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 13:39:39,550 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 13:39:39,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 13:39:39,555 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 13:39:39,555 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 13:39:39,556 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product20.cil.c [2019-10-02 13:39:39,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3547a35c9/68d4fd6495bc454dae5c65e2f9f87cf7/FLAG44dd65798 [2019-10-02 13:39:40,242 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 13:39:40,242 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product20.cil.c [2019-10-02 13:39:40,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3547a35c9/68d4fd6495bc454dae5c65e2f9f87cf7/FLAG44dd65798 [2019-10-02 13:39:40,426 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3547a35c9/68d4fd6495bc454dae5c65e2f9f87cf7 [2019-10-02 13:39:40,437 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 13:39:40,439 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 13:39:40,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 13:39:40,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 13:39:40,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 13:39:40,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:39:40" (1/1) ... [2019-10-02 13:39:40,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2837cd28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:39:40, skipping insertion in model container [2019-10-02 13:39:40,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:39:40" (1/1) ... [2019-10-02 13:39:40,454 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 13:39:40,518 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 13:39:41,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:39:41,336 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 13:39:41,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:39:41,518 INFO L192 MainTranslator]: Completed translation [2019-10-02 13:39:41,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:39:41 WrapperNode [2019-10-02 13:39:41,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 13:39:41,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 13:39:41,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 13:39:41,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 13:39:41,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:39:41" (1/1) ... [2019-10-02 13:39:41,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:39:41" (1/1) ... [2019-10-02 13:39:41,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:39:41" (1/1) ... [2019-10-02 13:39:41,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:39:41" (1/1) ... [2019-10-02 13:39:41,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:39:41" (1/1) ... [2019-10-02 13:39:41,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:39:41" (1/1) ... [2019-10-02 13:39:41,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:39:41" (1/1) ... [2019-10-02 13:39:41,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 13:39:41,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 13:39:41,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 13:39:41,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 13:39:41,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:39:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 13:39:41,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 13:39:41,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 13:39:41,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-02 13:39:41,788 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-02 13:39:41,788 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-02 13:39:41,788 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-02 13:39:41,788 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-02 13:39:41,788 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-02 13:39:41,789 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-02 13:39:41,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-02 13:39:41,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-02 13:39:41,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-02 13:39:41,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-02 13:39:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-02 13:39:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-02 13:39:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-02 13:39:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-02 13:39:41,790 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-02 13:39:41,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-02 13:39:41,791 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-02 13:39:41,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-02 13:39:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-02 13:39:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-02 13:39:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-02 13:39:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-02 13:39:41,792 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-02 13:39:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-02 13:39:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-02 13:39:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-02 13:39:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-02 13:39:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-02 13:39:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-02 13:39:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-02 13:39:41,794 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-02 13:39:41,794 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-02 13:39:41,794 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-02 13:39:41,794 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-02 13:39:41,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-02 13:39:41,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-02 13:39:41,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-02 13:39:41,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-02 13:39:41,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-02 13:39:41,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-02 13:39:41,796 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-02 13:39:41,796 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-02 13:39:41,796 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-02 13:39:41,796 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-02 13:39:41,796 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-02 13:39:41,797 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-02 13:39:41,797 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-02 13:39:41,797 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-02 13:39:41,797 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-02 13:39:41,797 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-02 13:39:41,797 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-02 13:39:41,798 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-02 13:39:41,798 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-02 13:39:41,798 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-02 13:39:41,798 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-02 13:39:41,798 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-02 13:39:41,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-02 13:39:41,799 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-02 13:39:41,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-02 13:39:41,799 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-02 13:39:41,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-02 13:39:41,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-02 13:39:41,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-02 13:39:41,800 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-02 13:39:41,800 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-02 13:39:41,800 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-02 13:39:41,800 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-02 13:39:41,801 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-02 13:39:41,801 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-02 13:39:41,801 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-02 13:39:41,801 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-02 13:39:41,801 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-02 13:39:41,802 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 13:39:41,802 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-02 13:39:41,802 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-02 13:39:41,802 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-02 13:39:41,802 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-02 13:39:41,803 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-02 13:39:41,803 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-02 13:39:41,803 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-02 13:39:41,803 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-02 13:39:41,803 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-02 13:39:41,804 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-02 13:39:41,804 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-02 13:39:41,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-02 13:39:41,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-02 13:39:41,804 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-02 13:39:41,804 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-02 13:39:41,805 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-02 13:39:41,805 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-02 13:39:41,805 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-02 13:39:41,805 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-02 13:39:41,805 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-02 13:39:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-02 13:39:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-02 13:39:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-02 13:39:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-02 13:39:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-02 13:39:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-02 13:39:41,807 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-02 13:39:41,807 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-02 13:39:41,807 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-02 13:39:41,807 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-02 13:39:41,807 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-02 13:39:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-02 13:39:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-02 13:39:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-02 13:39:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-02 13:39:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-02 13:39:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-02 13:39:41,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 13:39:41,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 13:39:41,809 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-02 13:39:41,809 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-02 13:39:41,809 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-02 13:39:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-02 13:39:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-02 13:39:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-02 13:39:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-02 13:39:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-02 13:39:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-02 13:39:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-02 13:39:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-02 13:39:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-02 13:39:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-02 13:39:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-02 13:39:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-02 13:39:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-02 13:39:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-02 13:39:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-02 13:39:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-02 13:39:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-02 13:39:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-02 13:39:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-02 13:39:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-02 13:39:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-02 13:39:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-02 13:39:41,813 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-02 13:39:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-02 13:39:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-02 13:39:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-02 13:39:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-02 13:39:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-02 13:39:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-02 13:39:41,814 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-02 13:39:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-02 13:39:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-02 13:39:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-02 13:39:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-02 13:39:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-02 13:39:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-02 13:39:41,815 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-02 13:39:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-02 13:39:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-02 13:39:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-02 13:39:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-02 13:39:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-02 13:39:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 13:39:41,816 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 13:39:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-02 13:39:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 13:39:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 13:39:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 13:39:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 13:39:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-02 13:39:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 13:39:41,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-02 13:39:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-02 13:39:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 13:39:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-02 13:39:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-02 13:39:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 13:39:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-02 13:39:41,818 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-02 13:39:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-02 13:39:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-02 13:39:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-02 13:39:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-02 13:39:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-02 13:39:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-02 13:39:41,819 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-02 13:39:41,820 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-02 13:39:41,820 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-02 13:39:41,820 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-02 13:39:41,820 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-02 13:39:41,820 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-02 13:39:41,820 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-02 13:39:41,820 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-02 13:39:41,821 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-02 13:39:41,821 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-02 13:39:41,821 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-02 13:39:41,821 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-02 13:39:41,821 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-02 13:39:41,821 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-02 13:39:41,821 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-02 13:39:41,821 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-02 13:39:41,822 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-02 13:39:41,822 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-02 13:39:41,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-02 13:39:41,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-02 13:39:41,822 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-02 13:39:41,822 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-02 13:39:41,822 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-02 13:39:41,823 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-02 13:39:41,823 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-02 13:39:41,823 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-02 13:39:41,823 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-02 13:39:41,823 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-02 13:39:41,823 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-02 13:39:41,823 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-02 13:39:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-02 13:39:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 13:39:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-02 13:39:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-02 13:39:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-02 13:39:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-02 13:39:41,824 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-02 13:39:41,825 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-02 13:39:41,825 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-02 13:39:41,825 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-02 13:39:41,825 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-02 13:39:41,825 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-02 13:39:41,825 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-02 13:39:41,825 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-02 13:39:41,826 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-02 13:39:41,826 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-02 13:39:41,826 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-02 13:39:41,826 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-02 13:39:41,826 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-02 13:39:41,826 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-02 13:39:41,826 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-02 13:39:41,826 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-02 13:39:41,827 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-02 13:39:41,827 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-02 13:39:41,827 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-02 13:39:41,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 13:39:41,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 13:39:41,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 13:39:43,849 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 13:39:43,850 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-02 13:39:43,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:39:43 BoogieIcfgContainer [2019-10-02 13:39:43,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 13:39:43,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 13:39:43,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 13:39:43,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 13:39:43,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 01:39:40" (1/3) ... [2019-10-02 13:39:43,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf9171e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:39:43, skipping insertion in model container [2019-10-02 13:39:43,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:39:41" (2/3) ... [2019-10-02 13:39:43,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf9171e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:39:43, skipping insertion in model container [2019-10-02 13:39:43,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:39:43" (3/3) ... [2019-10-02 13:39:43,863 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product20.cil.c [2019-10-02 13:39:43,874 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 13:39:43,892 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 13:39:43,911 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 13:39:43,968 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 13:39:43,969 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 13:39:43,969 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 13:39:43,969 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 13:39:43,970 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 13:39:43,970 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 13:39:43,970 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 13:39:43,970 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 13:39:43,970 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 13:39:44,015 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states. [2019-10-02 13:39:44,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-02 13:39:44,051 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:39:44,053 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:39:44,060 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:39:44,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:39:44,073 INFO L82 PathProgramCache]: Analyzing trace with hash 493567878, now seen corresponding path program 1 times [2019-10-02 13:39:44,077 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:39:44,078 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:39:44,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:44,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:39:44,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:39:44,805 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-02 13:39:44,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:39:44,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 13:39:44,813 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 13:39:44,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 13:39:44,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 13:39:44,830 INFO L87 Difference]: Start difference. First operand 567 states. Second operand 2 states. [2019-10-02 13:39:44,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:39:44,906 INFO L93 Difference]: Finished difference Result 772 states and 1057 transitions. [2019-10-02 13:39:44,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 13:39:44,907 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 185 [2019-10-02 13:39:44,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:39:44,940 INFO L225 Difference]: With dead ends: 772 [2019-10-02 13:39:44,941 INFO L226 Difference]: Without dead ends: 514 [2019-10-02 13:39:44,953 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 13:39:44,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2019-10-02 13:39:45,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2019-10-02 13:39:45,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2019-10-02 13:39:45,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 707 transitions. [2019-10-02 13:39:45,099 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 707 transitions. Word has length 185 [2019-10-02 13:39:45,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:39:45,103 INFO L475 AbstractCegarLoop]: Abstraction has 514 states and 707 transitions. [2019-10-02 13:39:45,104 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 13:39:45,104 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 707 transitions. [2019-10-02 13:39:45,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-02 13:39:45,114 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:39:45,114 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:39:45,115 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:39:45,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:39:45,116 INFO L82 PathProgramCache]: Analyzing trace with hash 532061428, now seen corresponding path program 1 times [2019-10-02 13:39:45,116 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:39:45,117 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:39:45,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:45,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:39:45,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:39:45,440 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-02 13:39:45,441 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:39:45,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:39:45,443 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:39:45,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:39:45,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:39:45,444 INFO L87 Difference]: Start difference. First operand 514 states and 707 transitions. Second operand 3 states. [2019-10-02 13:39:45,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:39:45,492 INFO L93 Difference]: Finished difference Result 755 states and 1022 transitions. [2019-10-02 13:39:45,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:39:45,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-10-02 13:39:45,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:39:45,500 INFO L225 Difference]: With dead ends: 755 [2019-10-02 13:39:45,500 INFO L226 Difference]: Without dead ends: 517 [2019-10-02 13:39:45,502 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:39:45,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2019-10-02 13:39:45,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 516. [2019-10-02 13:39:45,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2019-10-02 13:39:45,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 709 transitions. [2019-10-02 13:39:45,526 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 709 transitions. Word has length 186 [2019-10-02 13:39:45,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:39:45,527 INFO L475 AbstractCegarLoop]: Abstraction has 516 states and 709 transitions. [2019-10-02 13:39:45,527 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:39:45,527 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 709 transitions. [2019-10-02 13:39:45,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-02 13:39:45,533 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:39:45,533 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:39:45,533 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:39:45,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:39:45,534 INFO L82 PathProgramCache]: Analyzing trace with hash -347325980, now seen corresponding path program 1 times [2019-10-02 13:39:45,534 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:39:45,534 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:39:45,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:45,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:39:45,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:39:45,778 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-02 13:39:45,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:39:45,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:39:45,780 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:39:45,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:39:45,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:39:45,783 INFO L87 Difference]: Start difference. First operand 516 states and 709 transitions. Second operand 3 states. [2019-10-02 13:39:45,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:39:45,824 INFO L93 Difference]: Finished difference Result 1010 states and 1419 transitions. [2019-10-02 13:39:45,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:39:45,825 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-10-02 13:39:45,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:39:45,830 INFO L225 Difference]: With dead ends: 1010 [2019-10-02 13:39:45,830 INFO L226 Difference]: Without dead ends: 559 [2019-10-02 13:39:45,832 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:39:45,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2019-10-02 13:39:45,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 558. [2019-10-02 13:39:45,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2019-10-02 13:39:45,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 781 transitions. [2019-10-02 13:39:45,872 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 781 transitions. Word has length 196 [2019-10-02 13:39:45,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:39:45,873 INFO L475 AbstractCegarLoop]: Abstraction has 558 states and 781 transitions. [2019-10-02 13:39:45,873 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:39:45,874 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 781 transitions. [2019-10-02 13:39:45,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-02 13:39:45,881 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:39:45,881 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:39:45,881 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:39:45,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:39:45,882 INFO L82 PathProgramCache]: Analyzing trace with hash -326965868, now seen corresponding path program 1 times [2019-10-02 13:39:45,882 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:39:45,882 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:39:45,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:45,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:39:45,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:39:46,132 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-02 13:39:46,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:39:46,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:39:46,133 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:39:46,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:39:46,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:39:46,134 INFO L87 Difference]: Start difference. First operand 558 states and 781 transitions. Second operand 3 states. [2019-10-02 13:39:46,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:39:46,175 INFO L93 Difference]: Finished difference Result 1133 states and 1630 transitions. [2019-10-02 13:39:46,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:39:46,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2019-10-02 13:39:46,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:39:46,186 INFO L225 Difference]: With dead ends: 1133 [2019-10-02 13:39:46,188 INFO L226 Difference]: Without dead ends: 640 [2019-10-02 13:39:46,190 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:39:46,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2019-10-02 13:39:46,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 639. [2019-10-02 13:39:46,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2019-10-02 13:39:46,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 919 transitions. [2019-10-02 13:39:46,226 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 919 transitions. Word has length 197 [2019-10-02 13:39:46,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:39:46,229 INFO L475 AbstractCegarLoop]: Abstraction has 639 states and 919 transitions. [2019-10-02 13:39:46,229 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:39:46,229 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 919 transitions. [2019-10-02 13:39:46,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-02 13:39:46,236 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:39:46,237 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:39:46,237 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:39:46,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:39:46,238 INFO L82 PathProgramCache]: Analyzing trace with hash 175812164, now seen corresponding path program 1 times [2019-10-02 13:39:46,238 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:39:46,238 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:39:46,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:46,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:39:46,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:39:46,480 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-02 13:39:46,480 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:39:46,480 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:39:46,481 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:39:46,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:39:46,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:39:46,482 INFO L87 Difference]: Start difference. First operand 639 states and 919 transitions. Second operand 3 states. [2019-10-02 13:39:46,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:39:46,534 INFO L93 Difference]: Finished difference Result 1370 states and 2034 transitions. [2019-10-02 13:39:46,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:39:46,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2019-10-02 13:39:46,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:39:46,542 INFO L225 Difference]: With dead ends: 1370 [2019-10-02 13:39:46,542 INFO L226 Difference]: Without dead ends: 796 [2019-10-02 13:39:46,545 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:39:46,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2019-10-02 13:39:46,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 795. [2019-10-02 13:39:46,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2019-10-02 13:39:46,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1183 transitions. [2019-10-02 13:39:46,597 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1183 transitions. Word has length 198 [2019-10-02 13:39:46,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:39:46,598 INFO L475 AbstractCegarLoop]: Abstraction has 795 states and 1183 transitions. [2019-10-02 13:39:46,598 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:39:46,599 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1183 transitions. [2019-10-02 13:39:46,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-02 13:39:46,606 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:39:46,607 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:39:46,607 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:39:46,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:39:46,608 INFO L82 PathProgramCache]: Analyzing trace with hash 517583156, now seen corresponding path program 1 times [2019-10-02 13:39:46,608 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:39:46,608 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:39:46,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:46,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:39:46,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:39:46,889 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-02 13:39:46,889 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:39:46,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:39:46,891 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:39:46,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:39:46,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:39:46,892 INFO L87 Difference]: Start difference. First operand 795 states and 1183 transitions. Second operand 3 states. [2019-10-02 13:39:46,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:39:46,957 INFO L93 Difference]: Finished difference Result 1826 states and 2806 transitions. [2019-10-02 13:39:46,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:39:46,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-02 13:39:46,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:39:46,964 INFO L225 Difference]: With dead ends: 1826 [2019-10-02 13:39:46,964 INFO L226 Difference]: Without dead ends: 1096 [2019-10-02 13:39:46,967 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:39:46,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2019-10-02 13:39:47,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1095. [2019-10-02 13:39:47,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1095 states. [2019-10-02 13:39:47,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1687 transitions. [2019-10-02 13:39:47,019 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1687 transitions. Word has length 199 [2019-10-02 13:39:47,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:39:47,020 INFO L475 AbstractCegarLoop]: Abstraction has 1095 states and 1687 transitions. [2019-10-02 13:39:47,020 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:39:47,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1687 transitions. [2019-10-02 13:39:47,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-02 13:39:47,027 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:39:47,027 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:39:47,028 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:39:47,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:39:47,028 INFO L82 PathProgramCache]: Analyzing trace with hash 2061438023, now seen corresponding path program 1 times [2019-10-02 13:39:47,028 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:39:47,028 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:39:47,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:47,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:39:47,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:39:47,297 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-02 13:39:47,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:39:47,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-02 13:39:47,298 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 13:39:47,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 13:39:47,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-02 13:39:47,299 INFO L87 Difference]: Start difference. First operand 1095 states and 1687 transitions. Second operand 11 states. [2019-10-02 13:39:51,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:39:51,760 INFO L93 Difference]: Finished difference Result 3067 states and 4548 transitions. [2019-10-02 13:39:51,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-02 13:39:51,761 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 202 [2019-10-02 13:39:51,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:39:51,791 INFO L225 Difference]: With dead ends: 3067 [2019-10-02 13:39:51,792 INFO L226 Difference]: Without dead ends: 2842 [2019-10-02 13:39:51,798 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 13:39:51,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2019-10-02 13:39:51,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 2821. [2019-10-02 13:39:51,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2821 states. [2019-10-02 13:39:52,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 4142 transitions. [2019-10-02 13:39:52,001 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 4142 transitions. Word has length 202 [2019-10-02 13:39:52,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:39:52,002 INFO L475 AbstractCegarLoop]: Abstraction has 2821 states and 4142 transitions. [2019-10-02 13:39:52,002 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 13:39:52,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 4142 transitions. [2019-10-02 13:39:52,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-02 13:39:52,010 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:39:52,011 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:39:52,011 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:39:52,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:39:52,011 INFO L82 PathProgramCache]: Analyzing trace with hash 836940569, now seen corresponding path program 1 times [2019-10-02 13:39:52,012 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:39:52,012 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:39:52,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:52,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:39:52,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:39:52,526 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-02 13:39:52,526 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:39:52,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-02 13:39:52,527 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-02 13:39:52,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-02 13:39:52,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-02 13:39:52,528 INFO L87 Difference]: Start difference. First operand 2821 states and 4142 transitions. Second operand 18 states. [2019-10-02 13:39:53,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:39:53,080 INFO L93 Difference]: Finished difference Result 4807 states and 7068 transitions. [2019-10-02 13:39:53,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-02 13:39:53,081 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 203 [2019-10-02 13:39:53,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:39:53,109 INFO L225 Difference]: With dead ends: 4807 [2019-10-02 13:39:53,109 INFO L226 Difference]: Without dead ends: 2838 [2019-10-02 13:39:53,120 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-02 13:39:53,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2019-10-02 13:39:53,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 2836. [2019-10-02 13:39:53,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2836 states. [2019-10-02 13:39:53,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2836 states to 2836 states and 4143 transitions. [2019-10-02 13:39:53,270 INFO L78 Accepts]: Start accepts. Automaton has 2836 states and 4143 transitions. Word has length 203 [2019-10-02 13:39:53,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:39:53,270 INFO L475 AbstractCegarLoop]: Abstraction has 2836 states and 4143 transitions. [2019-10-02 13:39:53,271 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-02 13:39:53,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2836 states and 4143 transitions. [2019-10-02 13:39:53,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-02 13:39:53,278 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:39:53,278 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:39:53,279 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:39:53,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:39:53,279 INFO L82 PathProgramCache]: Analyzing trace with hash -17476821, now seen corresponding path program 1 times [2019-10-02 13:39:53,279 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:39:53,279 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:39:53,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:53,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:39:53,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:39:53,516 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-02 13:39:53,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:39:53,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 13:39:53,518 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 13:39:53,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 13:39:53,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-02 13:39:53,519 INFO L87 Difference]: Start difference. First operand 2836 states and 4143 transitions. Second operand 6 states. [2019-10-02 13:39:54,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:39:54,379 INFO L93 Difference]: Finished difference Result 7697 states and 11356 transitions. [2019-10-02 13:39:54,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 13:39:54,380 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 212 [2019-10-02 13:39:54,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:39:54,422 INFO L225 Difference]: With dead ends: 7697 [2019-10-02 13:39:54,422 INFO L226 Difference]: Without dead ends: 5759 [2019-10-02 13:39:54,433 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-02 13:39:54,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5759 states. [2019-10-02 13:39:54,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5759 to 5688. [2019-10-02 13:39:54,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5688 states. [2019-10-02 13:39:54,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5688 states to 5688 states and 8455 transitions. [2019-10-02 13:39:54,708 INFO L78 Accepts]: Start accepts. Automaton has 5688 states and 8455 transitions. Word has length 212 [2019-10-02 13:39:54,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:39:54,708 INFO L475 AbstractCegarLoop]: Abstraction has 5688 states and 8455 transitions. [2019-10-02 13:39:54,709 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 13:39:54,709 INFO L276 IsEmpty]: Start isEmpty. Operand 5688 states and 8455 transitions. [2019-10-02 13:39:54,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-02 13:39:54,728 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:39:54,728 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:39:54,728 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:39:54,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:39:54,729 INFO L82 PathProgramCache]: Analyzing trace with hash -924380084, now seen corresponding path program 1 times [2019-10-02 13:39:54,729 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:39:54,729 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:39:54,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:54,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:39:54,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:39:55,017 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-02 13:39:55,017 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:39:55,017 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-02 13:39:55,019 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 13:39:55,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 13:39:55,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-02 13:39:55,020 INFO L87 Difference]: Start difference. First operand 5688 states and 8455 transitions. Second operand 11 states. [2019-10-02 13:39:55,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:39:55,606 INFO L93 Difference]: Finished difference Result 9703 states and 14196 transitions. [2019-10-02 13:39:55,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-02 13:39:55,607 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 213 [2019-10-02 13:39:55,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:39:55,646 INFO L225 Difference]: With dead ends: 9703 [2019-10-02 13:39:55,646 INFO L226 Difference]: Without dead ends: 5742 [2019-10-02 13:39:55,665 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-02 13:39:55,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5742 states. [2019-10-02 13:39:56,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5742 to 5724. [2019-10-02 13:39:56,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5724 states. [2019-10-02 13:39:56,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5724 states to 5724 states and 8491 transitions. [2019-10-02 13:39:56,086 INFO L78 Accepts]: Start accepts. Automaton has 5724 states and 8491 transitions. Word has length 213 [2019-10-02 13:39:56,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:39:56,087 INFO L475 AbstractCegarLoop]: Abstraction has 5724 states and 8491 transitions. [2019-10-02 13:39:56,087 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 13:39:56,087 INFO L276 IsEmpty]: Start isEmpty. Operand 5724 states and 8491 transitions. [2019-10-02 13:39:56,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-02 13:39:56,099 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:39:56,100 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:39:56,100 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:39:56,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:39:56,100 INFO L82 PathProgramCache]: Analyzing trace with hash -337603965, now seen corresponding path program 1 times [2019-10-02 13:39:56,101 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:39:56,101 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:39:56,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:56,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:39:56,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:39:56,298 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-02 13:39:56,298 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:39:56,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 13:39:56,299 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 13:39:56,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 13:39:56,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 13:39:56,300 INFO L87 Difference]: Start difference. First operand 5724 states and 8491 transitions. Second operand 5 states. [2019-10-02 13:39:57,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:39:57,845 INFO L93 Difference]: Finished difference Result 19279 states and 28365 transitions. [2019-10-02 13:39:57,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 13:39:57,846 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 213 [2019-10-02 13:39:57,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:39:57,937 INFO L225 Difference]: With dead ends: 19279 [2019-10-02 13:39:57,937 INFO L226 Difference]: Without dead ends: 15284 [2019-10-02 13:39:57,964 INFO L640 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 [2019-10-02 13:39:57,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15284 states. [2019-10-02 13:39:59,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15284 to 15172. [2019-10-02 13:39:59,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15172 states. [2019-10-02 13:39:59,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15172 states to 15172 states and 22439 transitions. [2019-10-02 13:39:59,180 INFO L78 Accepts]: Start accepts. Automaton has 15172 states and 22439 transitions. Word has length 213 [2019-10-02 13:39:59,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:39:59,182 INFO L475 AbstractCegarLoop]: Abstraction has 15172 states and 22439 transitions. [2019-10-02 13:39:59,182 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 13:39:59,182 INFO L276 IsEmpty]: Start isEmpty. Operand 15172 states and 22439 transitions. [2019-10-02 13:39:59,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-10-02 13:39:59,208 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:39:59,208 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:39:59,209 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:39:59,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:39:59,209 INFO L82 PathProgramCache]: Analyzing trace with hash -2101577119, now seen corresponding path program 1 times [2019-10-02 13:39:59,209 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:39:59,210 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:39:59,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:59,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:39:59,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:39:59,476 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:39:59,476 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:39:59,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:39:59,477 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:39:59,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:39:59,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:39:59,478 INFO L87 Difference]: Start difference. First operand 15172 states and 22439 transitions. Second operand 8 states. [2019-10-02 13:40:04,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:40:04,703 INFO L93 Difference]: Finished difference Result 45882 states and 70315 transitions. [2019-10-02 13:40:04,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 13:40:04,704 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 250 [2019-10-02 13:40:04,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:40:04,855 INFO L225 Difference]: With dead ends: 45882 [2019-10-02 13:40:04,855 INFO L226 Difference]: Without dead ends: 30775 [2019-10-02 13:40:04,927 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-02 13:40:04,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30775 states. [2019-10-02 13:40:06,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30775 to 18756. [2019-10-02 13:40:06,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18756 states. [2019-10-02 13:40:06,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18756 states to 18756 states and 29827 transitions. [2019-10-02 13:40:06,308 INFO L78 Accepts]: Start accepts. Automaton has 18756 states and 29827 transitions. Word has length 250 [2019-10-02 13:40:06,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:40:06,309 INFO L475 AbstractCegarLoop]: Abstraction has 18756 states and 29827 transitions. [2019-10-02 13:40:06,309 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:40:06,309 INFO L276 IsEmpty]: Start isEmpty. Operand 18756 states and 29827 transitions. [2019-10-02 13:40:06,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-02 13:40:06,370 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:40:06,371 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:40:06,371 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:40:06,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:40:06,372 INFO L82 PathProgramCache]: Analyzing trace with hash 901490695, now seen corresponding path program 1 times [2019-10-02 13:40:06,372 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:40:06,372 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:40:06,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:40:06,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:40:06,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:40:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:40:06,584 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-02 13:40:06,584 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:40:06,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:40:06,585 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:40:06,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:40:06,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:40:06,586 INFO L87 Difference]: Start difference. First operand 18756 states and 29827 transitions. Second operand 8 states. [2019-10-02 13:40:12,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:40:12,625 INFO L93 Difference]: Finished difference Result 57170 states and 95735 transitions. [2019-10-02 13:40:12,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 13:40:12,626 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 236 [2019-10-02 13:40:12,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:40:13,045 INFO L225 Difference]: With dead ends: 57170 [2019-10-02 13:40:13,046 INFO L226 Difference]: Without dead ends: 38479 [2019-10-02 13:40:13,121 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-02 13:40:13,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38479 states. [2019-10-02 13:40:14,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38479 to 26044. [2019-10-02 13:40:14,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26044 states. [2019-10-02 13:40:14,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26044 states to 26044 states and 45947 transitions. [2019-10-02 13:40:14,863 INFO L78 Accepts]: Start accepts. Automaton has 26044 states and 45947 transitions. Word has length 236 [2019-10-02 13:40:14,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:40:14,864 INFO L475 AbstractCegarLoop]: Abstraction has 26044 states and 45947 transitions. [2019-10-02 13:40:14,864 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:40:14,864 INFO L276 IsEmpty]: Start isEmpty. Operand 26044 states and 45947 transitions. [2019-10-02 13:40:15,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2019-10-02 13:40:15,348 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:40:15,348 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:40:15,348 INFO L418 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:40:15,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:40:15,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1855274813, now seen corresponding path program 1 times [2019-10-02 13:40:15,349 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:40:15,349 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:40:15,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:40:15,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:40:15,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:40:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:40:15,568 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:40:15,568 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:40:15,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:40:15,569 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:40:15,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:40:15,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:40:15,570 INFO L87 Difference]: Start difference. First operand 26044 states and 45947 transitions. Second operand 8 states. [2019-10-02 13:40:21,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:40:21,624 INFO L93 Difference]: Finished difference Result 80018 states and 150563 transitions. [2019-10-02 13:40:21,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 13:40:21,624 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 252 [2019-10-02 13:40:21,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:40:21,943 INFO L225 Difference]: With dead ends: 80018 [2019-10-02 13:40:21,943 INFO L226 Difference]: Without dead ends: 54039 [2019-10-02 13:40:22,063 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-02 13:40:22,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54039 states. [2019-10-02 13:40:24,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54039 to 40748. [2019-10-02 13:40:24,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40748 states. [2019-10-02 13:40:24,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40748 states to 40748 states and 80735 transitions. [2019-10-02 13:40:24,832 INFO L78 Accepts]: Start accepts. Automaton has 40748 states and 80735 transitions. Word has length 252 [2019-10-02 13:40:24,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:40:24,833 INFO L475 AbstractCegarLoop]: Abstraction has 40748 states and 80735 transitions. [2019-10-02 13:40:24,833 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:40:24,833 INFO L276 IsEmpty]: Start isEmpty. Operand 40748 states and 80735 transitions. [2019-10-02 13:40:25,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2019-10-02 13:40:25,105 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:40:25,105 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:40:25,106 INFO L418 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:40:25,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:40:25,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1411507826, now seen corresponding path program 1 times [2019-10-02 13:40:25,106 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:40:25,107 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:40:25,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:40:25,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:40:25,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:40:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:40:26,651 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-02 13:40:26,651 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:40:26,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-02 13:40:26,652 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 13:40:26,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 13:40:26,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-02 13:40:26,653 INFO L87 Difference]: Start difference. First operand 40748 states and 80735 transitions. Second operand 11 states. [2019-10-02 13:40:28,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:40:28,809 INFO L93 Difference]: Finished difference Result 61541 states and 112068 transitions. [2019-10-02 13:40:28,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-02 13:40:28,809 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 256 [2019-10-02 13:40:28,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:40:29,176 INFO L225 Difference]: With dead ends: 61541 [2019-10-02 13:40:29,176 INFO L226 Difference]: Without dead ends: 52842 [2019-10-02 13:40:29,242 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2019-10-02 13:40:29,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52842 states. [2019-10-02 13:40:31,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52842 to 52214. [2019-10-02 13:40:31,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52214 states. [2019-10-02 13:40:32,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52214 states to 52214 states and 98445 transitions. [2019-10-02 13:40:32,084 INFO L78 Accepts]: Start accepts. Automaton has 52214 states and 98445 transitions. Word has length 256 [2019-10-02 13:40:32,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:40:32,084 INFO L475 AbstractCegarLoop]: Abstraction has 52214 states and 98445 transitions. [2019-10-02 13:40:32,084 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 13:40:32,084 INFO L276 IsEmpty]: Start isEmpty. Operand 52214 states and 98445 transitions. [2019-10-02 13:40:32,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2019-10-02 13:40:32,211 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:40:32,211 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:40:32,212 INFO L418 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:40:32,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:40:32,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1540623033, now seen corresponding path program 1 times [2019-10-02 13:40:32,212 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:40:32,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:40:32,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:40:32,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:40:32,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:40:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:40:33,354 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-02 13:40:33,355 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:40:33,355 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:40:33,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:40:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:40:33,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 3183 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:40:34,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:40:34,484 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-02 13:40:34,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:40:34,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [42] total 48 [2019-10-02 13:40:34,495 INFO L454 AbstractCegarLoop]: Interpolant automaton has 48 states [2019-10-02 13:40:34,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2019-10-02 13:40:34,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=2144, Unknown=0, NotChecked=0, Total=2256 [2019-10-02 13:40:34,497 INFO L87 Difference]: Start difference. First operand 52214 states and 98445 transitions. Second operand 48 states. [2019-10-02 13:40:46,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:40:46,206 INFO L93 Difference]: Finished difference Result 105815 states and 201776 transitions. [2019-10-02 13:40:46,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-02 13:40:46,207 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 259 [2019-10-02 13:40:46,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:40:46,604 INFO L225 Difference]: With dead ends: 105815 [2019-10-02 13:40:46,604 INFO L226 Difference]: Without dead ends: 53637 [2019-10-02 13:40:46,904 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 794 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=270, Invalid=5736, Unknown=0, NotChecked=0, Total=6006 [2019-10-02 13:40:46,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53637 states. [2019-10-02 13:40:51,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53637 to 52920. [2019-10-02 13:40:51,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52920 states. [2019-10-02 13:40:52,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52920 states to 52920 states and 98744 transitions. [2019-10-02 13:40:52,400 INFO L78 Accepts]: Start accepts. Automaton has 52920 states and 98744 transitions. Word has length 259 [2019-10-02 13:40:52,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:40:52,401 INFO L475 AbstractCegarLoop]: Abstraction has 52920 states and 98744 transitions. [2019-10-02 13:40:52,401 INFO L476 AbstractCegarLoop]: Interpolant automaton has 48 states. [2019-10-02 13:40:52,401 INFO L276 IsEmpty]: Start isEmpty. Operand 52920 states and 98744 transitions. [2019-10-02 13:40:52,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-10-02 13:40:52,526 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:40:52,526 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:40:52,526 INFO L418 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:40:52,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:40:52,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1530032437, now seen corresponding path program 1 times [2019-10-02 13:40:52,527 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:40:52,527 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:40:52,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:40:52,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:40:52,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:40:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:40:54,497 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-02 13:40:54,498 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:40:54,498 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:40:54,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:40:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:40:55,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 3131 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:40:55,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:40:55,510 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-02 13:40:55,517 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:40:55,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [55] total 62 [2019-10-02 13:40:55,518 INFO L454 AbstractCegarLoop]: Interpolant automaton has 62 states [2019-10-02 13:40:55,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2019-10-02 13:40:55,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=3646, Unknown=0, NotChecked=0, Total=3782 [2019-10-02 13:40:55,521 INFO L87 Difference]: Start difference. First operand 52920 states and 98744 transitions. Second operand 62 states. [2019-10-02 13:41:02,302 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-10-02 13:41:04,367 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-10-02 13:41:04,823 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-10-02 13:41:05,073 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-10-02 13:41:10,185 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 28 [2019-10-02 13:41:24,636 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-10-02 13:41:25,029 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-10-02 13:42:05,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:42:05,416 INFO L93 Difference]: Finished difference Result 354627 states and 717915 transitions. [2019-10-02 13:42:05,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2019-10-02 13:42:05,418 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 247 [2019-10-02 13:42:05,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:42:06,993 INFO L225 Difference]: With dead ends: 354627 [2019-10-02 13:42:06,993 INFO L226 Difference]: Without dead ends: 301766 [2019-10-02 13:42:12,640 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 267 SyntacticMatches, 3 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24088 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=4104, Invalid=70698, Unknown=0, NotChecked=0, Total=74802 [2019-10-02 13:42:12,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301766 states. [2019-10-02 13:42:30,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301766 to 294757. [2019-10-02 13:42:30,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294757 states. [2019-10-02 13:42:31,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294757 states to 294757 states and 545233 transitions. [2019-10-02 13:42:31,646 INFO L78 Accepts]: Start accepts. Automaton has 294757 states and 545233 transitions. Word has length 247 [2019-10-02 13:42:31,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:42:31,646 INFO L475 AbstractCegarLoop]: Abstraction has 294757 states and 545233 transitions. [2019-10-02 13:42:31,646 INFO L476 AbstractCegarLoop]: Interpolant automaton has 62 states. [2019-10-02 13:42:31,647 INFO L276 IsEmpty]: Start isEmpty. Operand 294757 states and 545233 transitions. [2019-10-02 13:42:39,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-10-02 13:42:39,494 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:42:39,494 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:42:39,495 INFO L418 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:42:39,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:42:39,495 INFO L82 PathProgramCache]: Analyzing trace with hash -2069914814, now seen corresponding path program 1 times [2019-10-02 13:42:39,495 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:42:39,495 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:42:39,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:42:39,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:42:39,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:42:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:42:39,691 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-02 13:42:39,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:42:39,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-02 13:42:39,692 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 13:42:39,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 13:42:39,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 13:42:39,694 INFO L87 Difference]: Start difference. First operand 294757 states and 545233 transitions. Second operand 7 states. [2019-10-02 13:43:11,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:11,872 INFO L93 Difference]: Finished difference Result 719590 states and 1331468 transitions. [2019-10-02 13:43:11,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-02 13:43:11,872 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 250 [2019-10-02 13:43:11,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:15,250 INFO L225 Difference]: With dead ends: 719590 [2019-10-02 13:43:15,250 INFO L226 Difference]: Without dead ends: 594010 [2019-10-02 13:43:15,742 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-02 13:43:16,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594010 states. [2019-10-02 13:44:17,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594010 to 589918. [2019-10-02 13:44:17,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589918 states. [2019-10-02 13:44:20,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589918 states to 589918 states and 1093943 transitions. [2019-10-02 13:44:20,890 INFO L78 Accepts]: Start accepts. Automaton has 589918 states and 1093943 transitions. Word has length 250 [2019-10-02 13:44:20,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:20,891 INFO L475 AbstractCegarLoop]: Abstraction has 589918 states and 1093943 transitions. [2019-10-02 13:44:20,891 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 13:44:20,891 INFO L276 IsEmpty]: Start isEmpty. Operand 589918 states and 1093943 transitions. [2019-10-02 13:44:34,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-10-02 13:44:34,159 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:34,159 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:34,159 INFO L418 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:34,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:34,160 INFO L82 PathProgramCache]: Analyzing trace with hash 393432018, now seen corresponding path program 1 times [2019-10-02 13:44:34,160 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:34,160 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:34,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:34,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:34,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:35,244 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-02 13:44:35,245 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:44:35,245 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:44:35,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:35,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 3231 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:44:35,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:44:36,279 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-02 13:44:36,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:44:36,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [39] total 46 [2019-10-02 13:44:36,288 INFO L454 AbstractCegarLoop]: Interpolant automaton has 46 states [2019-10-02 13:44:36,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2019-10-02 13:44:36,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1970, Unknown=0, NotChecked=0, Total=2070 [2019-10-02 13:44:36,289 INFO L87 Difference]: Start difference. First operand 589918 states and 1093943 transitions. Second operand 46 states. [2019-10-02 13:44:47,773 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2019-10-02 13:45:19,621 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-10-02 13:45:19,964 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2019-10-02 13:45:20,214 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-10-02 13:45:20,564 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2019-10-02 13:48:19,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:48:19,474 INFO L93 Difference]: Finished difference Result 2082987 states and 3832801 transitions. [2019-10-02 13:48:19,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. [2019-10-02 13:48:19,475 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 274 [2019-10-02 13:48:19,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:48:29,134 INFO L225 Difference]: With dead ends: 2082987 [2019-10-02 13:48:29,134 INFO L226 Difference]: Without dead ends: 1442908 [2019-10-02 13:48:32,397 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 302 SyntacticMatches, 4 SemanticMatches, 265 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23853 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=5244, Invalid=65778, Unknown=0, NotChecked=0, Total=71022 [2019-10-02 13:48:33,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442908 states.