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_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 13:42:59,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 13:42:59,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 13:42:59,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 13:42:59,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 13:42:59,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 13:42:59,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 13:42:59,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 13:42:59,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 13:42:59,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 13:42:59,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 13:42:59,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 13:42:59,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 13:42:59,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 13:42:59,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 13:42:59,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 13:42:59,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 13:42:59,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 13:42:59,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 13:42:59,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 13:42:59,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 13:42:59,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 13:42:59,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 13:42:59,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 13:42:59,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 13:42:59,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 13:42:59,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 13:42:59,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 13:42:59,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 13:42:59,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 13:42:59,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 13:42:59,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 13:42:59,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 13:42:59,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 13:42:59,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 13:42:59,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 13:42:59,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 13:42:59,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 13:42:59,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 13:42:59,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 13:42:59,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 13:42:59,863 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 13:42:59,876 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 13:42:59,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 13:42:59,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 13:42:59,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 13:42:59,878 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 13:42:59,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 13:42:59,879 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 13:42:59,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 13:42:59,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 13:42:59,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 13:42:59,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 13:42:59,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 13:42:59,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 13:42:59,880 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 13:42:59,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 13:42:59,880 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 13:42:59,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 13:42:59,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 13:42:59,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 13:42:59,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 13:42:59,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 13:42:59,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 13:42:59,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 13:42:59,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 13:42:59,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 13:42:59,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 13:42:59,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 13:42:59,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 13:42:59,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 13:42:59,911 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 13:42:59,925 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 13:42:59,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 13:42:59,932 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 13:42:59,932 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 13:42:59,933 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product29.cil.c [2019-10-02 13:42:59,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea4ef75c/002fe73b6c924fe5a231ee1e0e748a4f/FLAG25feaa58a [2019-10-02 13:43:00,679 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 13:43:00,680 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product29.cil.c [2019-10-02 13:43:00,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea4ef75c/002fe73b6c924fe5a231ee1e0e748a4f/FLAG25feaa58a [2019-10-02 13:43:00,817 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea4ef75c/002fe73b6c924fe5a231ee1e0e748a4f [2019-10-02 13:43:00,830 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 13:43:00,833 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 13:43:00,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 13:43:00,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 13:43:00,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 13:43:00,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:43:00" (1/1) ... [2019-10-02 13:43:00,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45070ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:00, skipping insertion in model container [2019-10-02 13:43:00,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:43:00" (1/1) ... [2019-10-02 13:43:00,854 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 13:43:00,950 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 13:43:01,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:43:01,782 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 13:43:01,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:43:02,041 INFO L192 MainTranslator]: Completed translation [2019-10-02 13:43:02,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:02 WrapperNode [2019-10-02 13:43:02,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 13:43:02,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 13:43:02,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 13:43:02,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 13:43:02,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:02" (1/1) ... [2019-10-02 13:43:02,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:02" (1/1) ... [2019-10-02 13:43:02,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:02" (1/1) ... [2019-10-02 13:43:02,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:02" (1/1) ... [2019-10-02 13:43:02,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:02" (1/1) ... [2019-10-02 13:43:02,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:02" (1/1) ... [2019-10-02 13:43:02,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:02" (1/1) ... [2019-10-02 13:43:02,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 13:43:02,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 13:43:02,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 13:43:02,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 13:43:02,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 13:43:02,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 13:43:02,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 13:43:02,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-02 13:43:02,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-02 13:43:02,323 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-02 13:43:02,323 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-02 13:43:02,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-02 13:43:02,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-02 13:43:02,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-02 13:43:02,324 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-02 13:43:02,324 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-02 13:43:02,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-02 13:43:02,326 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 13:43:02,326 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-02 13:43:02,327 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-02 13:43:02,327 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-02 13:43:02,329 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-02 13:43:02,330 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-02 13:43:02,331 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-02 13:43:02,331 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-02 13:43:02,331 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-02 13:43:02,331 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-02 13:43:02,332 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-02 13:43:02,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-02 13:43:02,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-02 13:43:02,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-02 13:43:02,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-02 13:43:02,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-02 13:43:02,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-02 13:43:02,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-02 13:43:02,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-02 13:43:02,333 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-02 13:43:02,334 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-02 13:43:02,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-02 13:43:02,334 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-02 13:43:02,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-02 13:43:02,334 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-02 13:43:02,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-02 13:43:02,334 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-02 13:43:02,335 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-02 13:43:02,335 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-02 13:43:02,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-02 13:43:02,335 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-02 13:43:02,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-02 13:43:02,336 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-02 13:43:02,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-02 13:43:02,336 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-02 13:43:02,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-02 13:43:02,336 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-02 13:43:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-02 13:43:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-02 13:43:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-02 13:43:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-02 13:43:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-02 13:43:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-02 13:43:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-02 13:43:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-02 13:43:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-02 13:43:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-02 13:43:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-02 13:43:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-02 13:43:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-02 13:43:02,340 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-02 13:43:02,340 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-02 13:43:02,340 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-02 13:43:02,340 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-02 13:43:02,340 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-02 13:43:02,341 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-02 13:43:02,341 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-02 13:43:02,341 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-02 13:43:02,341 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-02 13:43:02,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-02 13:43:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-02 13:43:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-02 13:43:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-02 13:43:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-02 13:43:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-02 13:43:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-02 13:43:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-02 13:43:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-02 13:43:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-02 13:43:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-02 13:43:02,344 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-02 13:43:02,344 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-02 13:43:02,344 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-02 13:43:02,344 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-02 13:43:02,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-02 13:43:02,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-02 13:43:02,345 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-02 13:43:02,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-02 13:43:02,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-02 13:43:02,346 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-02 13:43:02,346 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-02 13:43:02,346 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-02 13:43:02,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-02 13:43:02,346 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-02 13:43:02,347 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-02 13:43:02,347 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-02 13:43:02,347 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-02 13:43:02,347 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-02 13:43:02,347 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-02 13:43:02,347 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-02 13:43:02,347 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-02 13:43:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-02 13:43:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-02 13:43:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-02 13:43:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-02 13:43:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-02 13:43:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-02 13:43:02,349 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-02 13:43:02,349 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-02 13:43:02,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-02 13:43:02,349 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-02 13:43:02,349 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-02 13:43:02,349 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-02 13:43:02,349 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-02 13:43:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 13:43:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 13:43:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-02 13:43:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-02 13:43:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-02 13:43:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-02 13:43:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-02 13:43:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-02 13:43:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-02 13:43:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-02 13:43:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-02 13:43:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-02 13:43:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-02 13:43:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-02 13:43:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-02 13:43:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-02 13:43:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-02 13:43:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-02 13:43:02,354 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-02 13:43:02,354 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-02 13:43:02,354 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-02 13:43:02,354 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-02 13:43:02,355 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-02 13:43:02,355 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-02 13:43:02,358 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-02 13:43:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-02 13:43:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-02 13:43:02,360 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-02 13:43:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-02 13:43:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-02 13:43:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 13:43:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-02 13:43:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-02 13:43:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-02 13:43:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-02 13:43:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-02 13:43:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-02 13:43:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-02 13:43:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-02 13:43:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-02 13:43:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-02 13:43:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-02 13:43:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-02 13:43:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-02 13:43:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 13:43:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-02 13:43:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 13:43:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 13:43:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-02 13:43:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 13:43:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 13:43:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 13:43:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 13:43:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-02 13:43:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 13:43:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-02 13:43:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-02 13:43:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 13:43:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-02 13:43:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-02 13:43:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-02 13:43:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-02 13:43:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-02 13:43:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-02 13:43:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-02 13:43:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-02 13:43:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-02 13:43:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-02 13:43:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-02 13:43:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-02 13:43:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-02 13:43:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-02 13:43:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-02 13:43:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-02 13:43:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-02 13:43:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-02 13:43:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-02 13:43:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-02 13:43:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-02 13:43:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-02 13:43:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-02 13:43:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-02 13:43:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-02 13:43:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-02 13:43:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-02 13:43:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-02 13:43:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-02 13:43:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-02 13:43:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-02 13:43:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-02 13:43:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-02 13:43:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-02 13:43:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-02 13:43:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-02 13:43:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-02 13:43:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-02 13:43:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-02 13:43:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-02 13:43:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-02 13:43:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-02 13:43:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-02 13:43:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-02 13:43:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-02 13:43:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-02 13:43:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-02 13:43:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-02 13:43:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-02 13:43:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-02 13:43:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-02 13:43:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-02 13:43:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-02 13:43:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-02 13:43:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-02 13:43:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-02 13:43:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-02 13:43:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-02 13:43:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-02 13:43:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-02 13:43:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-02 13:43:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-02 13:43:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-02 13:43:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-02 13:43:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-02 13:43:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-02 13:43:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-02 13:43:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-02 13:43:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-02 13:43:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-02 13:43:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 13:43:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 13:43:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 13:43:04,712 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 13:43:04,713 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-02 13:43:04,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:43:04 BoogieIcfgContainer [2019-10-02 13:43:04,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 13:43:04,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 13:43:04,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 13:43:04,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 13:43:04,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 01:43:00" (1/3) ... [2019-10-02 13:43:04,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c25e42c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:43:04, skipping insertion in model container [2019-10-02 13:43:04,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:02" (2/3) ... [2019-10-02 13:43:04,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c25e42c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:43:04, skipping insertion in model container [2019-10-02 13:43:04,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:43:04" (3/3) ... [2019-10-02 13:43:04,729 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product29.cil.c [2019-10-02 13:43:04,741 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 13:43:04,756 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 13:43:04,776 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 13:43:04,828 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 13:43:04,828 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 13:43:04,829 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 13:43:04,830 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 13:43:04,835 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 13:43:04,835 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 13:43:04,835 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 13:43:04,835 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 13:43:04,836 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 13:43:04,886 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states. [2019-10-02 13:43:04,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-02 13:43:04,925 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:04,928 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-02 13:43:04,931 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:04,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:04,937 INFO L82 PathProgramCache]: Analyzing trace with hash -704856289, now seen corresponding path program 1 times [2019-10-02 13:43:04,939 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:04,940 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:05,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:05,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:05,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:05,668 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:43:05,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:05,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 13:43:05,675 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 13:43:05,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 13:43:05,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 13:43:05,692 INFO L87 Difference]: Start difference. First operand 610 states. Second operand 2 states. [2019-10-02 13:43:05,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:05,782 INFO L93 Difference]: Finished difference Result 861 states and 1174 transitions. [2019-10-02 13:43:05,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 13:43:05,784 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 198 [2019-10-02 13:43:05,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:05,807 INFO L225 Difference]: With dead ends: 861 [2019-10-02 13:43:05,808 INFO L226 Difference]: Without dead ends: 553 [2019-10-02 13:43:05,815 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 13:43:05,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2019-10-02 13:43:05,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2019-10-02 13:43:05,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2019-10-02 13:43:05,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 758 transitions. [2019-10-02 13:43:05,914 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 758 transitions. Word has length 198 [2019-10-02 13:43:05,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:43:05,917 INFO L475 AbstractCegarLoop]: Abstraction has 553 states and 758 transitions. [2019-10-02 13:43:05,917 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 13:43:05,917 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 758 transitions. [2019-10-02 13:43:05,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-02 13:43:05,929 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:05,929 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-02 13:43:05,929 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:05,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:05,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1910809467, now seen corresponding path program 1 times [2019-10-02 13:43:05,930 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:05,930 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:05,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:05,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:05,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:06,164 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:43:06,164 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:06,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:43:06,168 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:43:06,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:43:06,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:43:06,169 INFO L87 Difference]: Start difference. First operand 553 states and 758 transitions. Second operand 3 states. [2019-10-02 13:43:06,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:06,256 INFO L93 Difference]: Finished difference Result 844 states and 1138 transitions. [2019-10-02 13:43:06,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:43:06,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-02 13:43:06,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:06,272 INFO L225 Difference]: With dead ends: 844 [2019-10-02 13:43:06,272 INFO L226 Difference]: Without dead ends: 556 [2019-10-02 13:43:06,281 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 13:43:06,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2019-10-02 13:43:06,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 555. [2019-10-02 13:43:06,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2019-10-02 13:43:06,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 760 transitions. [2019-10-02 13:43:06,350 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 760 transitions. Word has length 199 [2019-10-02 13:43:06,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:43:06,353 INFO L475 AbstractCegarLoop]: Abstraction has 555 states and 760 transitions. [2019-10-02 13:43:06,353 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:43:06,353 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 760 transitions. [2019-10-02 13:43:06,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-02 13:43:06,360 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:06,360 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 13:43:06,360 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:06,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:06,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1939703097, now seen corresponding path program 1 times [2019-10-02 13:43:06,361 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:06,361 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:06,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:06,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:06,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:06,603 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:43:06,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:06,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:43:06,608 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:43:06,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:43:06,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:43:06,610 INFO L87 Difference]: Start difference. First operand 555 states and 760 transitions. Second operand 3 states. [2019-10-02 13:43:06,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:06,663 INFO L93 Difference]: Finished difference Result 1086 states and 1518 transitions. [2019-10-02 13:43:06,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:43:06,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-10-02 13:43:06,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:06,671 INFO L225 Difference]: With dead ends: 1086 [2019-10-02 13:43:06,671 INFO L226 Difference]: Without dead ends: 596 [2019-10-02 13:43:06,673 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 13:43:06,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-10-02 13:43:06,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 595. [2019-10-02 13:43:06,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2019-10-02 13:43:06,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 829 transitions. [2019-10-02 13:43:06,716 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 829 transitions. Word has length 205 [2019-10-02 13:43:06,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:43:06,718 INFO L475 AbstractCegarLoop]: Abstraction has 595 states and 829 transitions. [2019-10-02 13:43:06,718 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:43:06,718 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 829 transitions. [2019-10-02 13:43:06,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-02 13:43:06,726 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:06,726 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 13:43:06,726 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:06,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:06,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1931523851, now seen corresponding path program 1 times [2019-10-02 13:43:06,727 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:06,727 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:06,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:06,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:06,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:07,092 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:43:07,093 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:07,093 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-02 13:43:07,094 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 13:43:07,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 13:43:07,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-02 13:43:07,095 INFO L87 Difference]: Start difference. First operand 595 states and 829 transitions. Second operand 11 states. [2019-10-02 13:43:12,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:12,970 INFO L93 Difference]: Finished difference Result 3017 states and 4347 transitions. [2019-10-02 13:43:12,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-02 13:43:12,971 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2019-10-02 13:43:12,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:12,990 INFO L225 Difference]: With dead ends: 3017 [2019-10-02 13:43:12,991 INFO L226 Difference]: Without dead ends: 2742 [2019-10-02 13:43:12,996 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 13:43:12,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2742 states. [2019-10-02 13:43:13,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2742 to 2721. [2019-10-02 13:43:13,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2721 states. [2019-10-02 13:43:13,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3813 transitions. [2019-10-02 13:43:13,173 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3813 transitions. Word has length 206 [2019-10-02 13:43:13,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:43:13,174 INFO L475 AbstractCegarLoop]: Abstraction has 2721 states and 3813 transitions. [2019-10-02 13:43:13,174 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 13:43:13,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3813 transitions. [2019-10-02 13:43:13,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-02 13:43:13,179 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:13,179 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 13:43:13,180 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:13,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:13,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1283992778, now seen corresponding path program 1 times [2019-10-02 13:43:13,180 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:13,180 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:13,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:13,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:13,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:13,641 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:43:13,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:13,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-10-02 13:43:13,643 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-02 13:43:13,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-02 13:43:13,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-10-02 13:43:13,645 INFO L87 Difference]: Start difference. First operand 2721 states and 3813 transitions. Second operand 20 states. [2019-10-02 13:43:14,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:14,274 INFO L93 Difference]: Finished difference Result 5086 states and 7256 transitions. [2019-10-02 13:43:14,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-02 13:43:14,275 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 207 [2019-10-02 13:43:14,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:14,292 INFO L225 Difference]: With dead ends: 5086 [2019-10-02 13:43:14,292 INFO L226 Difference]: Without dead ends: 2667 [2019-10-02 13:43:14,303 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-02 13:43:14,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2019-10-02 13:43:14,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2665. [2019-10-02 13:43:14,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2665 states. [2019-10-02 13:43:14,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 3727 transitions. [2019-10-02 13:43:14,426 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 3727 transitions. Word has length 207 [2019-10-02 13:43:14,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:43:14,427 INFO L475 AbstractCegarLoop]: Abstraction has 2665 states and 3727 transitions. [2019-10-02 13:43:14,427 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-02 13:43:14,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 3727 transitions. [2019-10-02 13:43:14,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-02 13:43:14,432 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:14,432 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 13:43:14,433 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:14,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:14,433 INFO L82 PathProgramCache]: Analyzing trace with hash 230982638, now seen corresponding path program 1 times [2019-10-02 13:43:14,433 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:14,434 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:14,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:14,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:14,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:14,677 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:43:14,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:14,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 13:43:14,678 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 13:43:14,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 13:43:14,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-02 13:43:14,679 INFO L87 Difference]: Start difference. First operand 2665 states and 3727 transitions. Second operand 6 states. [2019-10-02 13:43:15,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:15,611 INFO L93 Difference]: Finished difference Result 7713 states and 10967 transitions. [2019-10-02 13:43:15,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 13:43:15,611 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2019-10-02 13:43:15,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:15,647 INFO L225 Difference]: With dead ends: 7713 [2019-10-02 13:43:15,647 INFO L226 Difference]: Without dead ends: 5417 [2019-10-02 13:43:15,659 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 13:43:15,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5417 states. [2019-10-02 13:43:15,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5417 to 5346. [2019-10-02 13:43:15,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5346 states. [2019-10-02 13:43:15,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5346 states to 5346 states and 7577 transitions. [2019-10-02 13:43:15,927 INFO L78 Accepts]: Start accepts. Automaton has 5346 states and 7577 transitions. Word has length 216 [2019-10-02 13:43:15,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:43:15,928 INFO L475 AbstractCegarLoop]: Abstraction has 5346 states and 7577 transitions. [2019-10-02 13:43:15,928 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 13:43:15,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5346 states and 7577 transitions. [2019-10-02 13:43:15,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-02 13:43:15,934 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:15,935 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 13:43:15,935 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:15,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:15,935 INFO L82 PathProgramCache]: Analyzing trace with hash -95717533, now seen corresponding path program 1 times [2019-10-02 13:43:15,936 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:15,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:15,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:15,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:15,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:16,256 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:43:16,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:16,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-02 13:43:16,257 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-02 13:43:16,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-02 13:43:16,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-02 13:43:16,258 INFO L87 Difference]: Start difference. First operand 5346 states and 7577 transitions. Second operand 13 states. [2019-10-02 13:43:17,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:17,078 INFO L93 Difference]: Finished difference Result 10077 states and 14314 transitions. [2019-10-02 13:43:17,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-02 13:43:17,078 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 217 [2019-10-02 13:43:17,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:17,113 INFO L225 Difference]: With dead ends: 10077 [2019-10-02 13:43:17,114 INFO L226 Difference]: Without dead ends: 5400 [2019-10-02 13:43:17,133 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-02 13:43:17,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5400 states. [2019-10-02 13:43:17,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5400 to 5382. [2019-10-02 13:43:17,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5382 states. [2019-10-02 13:43:17,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 7631 transitions. [2019-10-02 13:43:17,401 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 7631 transitions. Word has length 217 [2019-10-02 13:43:17,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:43:17,402 INFO L475 AbstractCegarLoop]: Abstraction has 5382 states and 7631 transitions. [2019-10-02 13:43:17,402 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-02 13:43:17,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 7631 transitions. [2019-10-02 13:43:17,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-02 13:43:17,408 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:17,409 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 13:43:17,409 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:17,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:17,410 INFO L82 PathProgramCache]: Analyzing trace with hash 491058586, now seen corresponding path program 1 times [2019-10-02 13:43:17,410 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:17,410 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:17,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:17,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:17,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:17,592 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:43:17,593 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:17,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 13:43:17,593 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 13:43:17,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 13:43:17,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 13:43:17,594 INFO L87 Difference]: Start difference. First operand 5382 states and 7631 transitions. Second operand 5 states. [2019-10-02 13:43:19,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:19,571 INFO L93 Difference]: Finished difference Result 20027 states and 29083 transitions. [2019-10-02 13:43:19,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 13:43:19,572 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2019-10-02 13:43:19,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:19,692 INFO L225 Difference]: With dead ends: 20027 [2019-10-02 13:43:19,692 INFO L226 Difference]: Without dead ends: 15316 [2019-10-02 13:43:19,734 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 13:43:19,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15316 states. [2019-10-02 13:43:20,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15316 to 15204. [2019-10-02 13:43:20,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15204 states. [2019-10-02 13:43:20,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15204 states to 15204 states and 21825 transitions. [2019-10-02 13:43:20,575 INFO L78 Accepts]: Start accepts. Automaton has 15204 states and 21825 transitions. Word has length 217 [2019-10-02 13:43:20,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:43:20,576 INFO L475 AbstractCegarLoop]: Abstraction has 15204 states and 21825 transitions. [2019-10-02 13:43:20,576 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 13:43:20,576 INFO L276 IsEmpty]: Start isEmpty. Operand 15204 states and 21825 transitions. [2019-10-02 13:43:20,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-02 13:43:20,591 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:20,591 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 13:43:20,591 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:20,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:20,592 INFO L82 PathProgramCache]: Analyzing trace with hash -364250432, now seen corresponding path program 1 times [2019-10-02 13:43:20,592 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:20,592 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:20,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:20,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:20,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:21,399 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:43:21,400 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:21,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:43:21,401 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:43:21,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:43:21,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:43:21,401 INFO L87 Difference]: Start difference. First operand 15204 states and 21825 transitions. Second operand 3 states. [2019-10-02 13:43:21,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:21,894 INFO L93 Difference]: Finished difference Result 30671 states and 44186 transitions. [2019-10-02 13:43:21,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:43:21,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2019-10-02 13:43:21,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:21,992 INFO L225 Difference]: With dead ends: 30671 [2019-10-02 13:43:21,992 INFO L226 Difference]: Without dead ends: 15532 [2019-10-02 13:43:22,057 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 13:43:22,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15532 states. [2019-10-02 13:43:22,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15532 to 15528. [2019-10-02 13:43:22,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15528 states. [2019-10-02 13:43:22,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15528 states to 15528 states and 22422 transitions. [2019-10-02 13:43:22,929 INFO L78 Accepts]: Start accepts. Automaton has 15528 states and 22422 transitions. Word has length 246 [2019-10-02 13:43:22,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:43:22,929 INFO L475 AbstractCegarLoop]: Abstraction has 15528 states and 22422 transitions. [2019-10-02 13:43:22,930 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:43:22,930 INFO L276 IsEmpty]: Start isEmpty. Operand 15528 states and 22422 transitions. [2019-10-02 13:43:22,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-10-02 13:43:22,950 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:22,950 INFO L411 BasicCegarLoop]: trace histogram [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 13:43:22,950 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:22,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:22,951 INFO L82 PathProgramCache]: Analyzing trace with hash 151758884, now seen corresponding path program 1 times [2019-10-02 13:43:22,951 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:22,951 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:22,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:22,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:22,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:23,154 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:43:23,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:23,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:43:23,156 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:43:23,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:43:23,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:43:23,157 INFO L87 Difference]: Start difference. First operand 15528 states and 22422 transitions. Second operand 3 states. [2019-10-02 13:43:23,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:23,573 INFO L93 Difference]: Finished difference Result 31603 states and 45913 transitions. [2019-10-02 13:43:23,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:43:23,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2019-10-02 13:43:23,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:23,654 INFO L225 Difference]: With dead ends: 31603 [2019-10-02 13:43:23,654 INFO L226 Difference]: Without dead ends: 16140 [2019-10-02 13:43:23,697 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 13:43:23,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16140 states. [2019-10-02 13:43:25,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16140 to 16136. [2019-10-02 13:43:25,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16136 states. [2019-10-02 13:43:25,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16136 states to 16136 states and 23544 transitions. [2019-10-02 13:43:25,104 INFO L78 Accepts]: Start accepts. Automaton has 16136 states and 23544 transitions. Word has length 247 [2019-10-02 13:43:25,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:43:25,105 INFO L475 AbstractCegarLoop]: Abstraction has 16136 states and 23544 transitions. [2019-10-02 13:43:25,105 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:43:25,105 INFO L276 IsEmpty]: Start isEmpty. Operand 16136 states and 23544 transitions. [2019-10-02 13:43:25,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2019-10-02 13:43:25,123 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:25,123 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:43:25,124 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:25,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:25,124 INFO L82 PathProgramCache]: Analyzing trace with hash -351511822, now seen corresponding path program 1 times [2019-10-02 13:43:25,124 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:25,124 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:25,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:25,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:25,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:25,400 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-02 13:43:25,400 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:25,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:43:25,401 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:43:25,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:43:25,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:43:25,402 INFO L87 Difference]: Start difference. First operand 16136 states and 23544 transitions. Second operand 8 states. [2019-10-02 13:43:30,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:30,746 INFO L93 Difference]: Finished difference Result 48774 states and 72622 transitions. [2019-10-02 13:43:30,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 13:43:30,747 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 254 [2019-10-02 13:43:30,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:30,945 INFO L225 Difference]: With dead ends: 48774 [2019-10-02 13:43:30,945 INFO L226 Difference]: Without dead ends: 32703 [2019-10-02 13:43:31,011 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 13:43:31,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32703 states. [2019-10-02 13:43:32,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32703 to 18452. [2019-10-02 13:43:32,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18452 states. [2019-10-02 13:43:32,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18452 states to 18452 states and 28180 transitions. [2019-10-02 13:43:32,470 INFO L78 Accepts]: Start accepts. Automaton has 18452 states and 28180 transitions. Word has length 254 [2019-10-02 13:43:32,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:43:32,471 INFO L475 AbstractCegarLoop]: Abstraction has 18452 states and 28180 transitions. [2019-10-02 13:43:32,471 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:43:32,471 INFO L276 IsEmpty]: Start isEmpty. Operand 18452 states and 28180 transitions. [2019-10-02 13:43:32,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-02 13:43:32,515 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:32,516 INFO L411 BasicCegarLoop]: trace histogram [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 13:43:32,516 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:32,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:32,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1898394897, now seen corresponding path program 1 times [2019-10-02 13:43:32,517 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:32,517 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:32,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:32,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:32,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:32,795 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:43:32,796 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:32,796 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:43:32,797 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:43:32,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:43:32,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:43:32,799 INFO L87 Difference]: Start difference. First operand 18452 states and 28180 transitions. Second operand 8 states. [2019-10-02 13:43:38,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:38,544 INFO L93 Difference]: Finished difference Result 56258 states and 88778 transitions. [2019-10-02 13:43:38,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 13:43:38,545 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 249 [2019-10-02 13:43:38,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:38,794 INFO L225 Difference]: With dead ends: 56258 [2019-10-02 13:43:38,794 INFO L226 Difference]: Without dead ends: 37871 [2019-10-02 13:43:38,863 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 13:43:38,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37871 states. [2019-10-02 13:43:40,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37871 to 23204. [2019-10-02 13:43:40,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23204 states. [2019-10-02 13:43:40,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23204 states to 23204 states and 38292 transitions. [2019-10-02 13:43:40,231 INFO L78 Accepts]: Start accepts. Automaton has 23204 states and 38292 transitions. Word has length 249 [2019-10-02 13:43:40,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:43:40,232 INFO L475 AbstractCegarLoop]: Abstraction has 23204 states and 38292 transitions. [2019-10-02 13:43:40,232 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:43:40,232 INFO L276 IsEmpty]: Start isEmpty. Operand 23204 states and 38292 transitions. [2019-10-02 13:43:40,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2019-10-02 13:43:40,379 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:40,379 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:43:40,380 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:40,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:40,380 INFO L82 PathProgramCache]: Analyzing trace with hash -824695530, now seen corresponding path program 1 times [2019-10-02 13:43:40,380 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:40,380 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:40,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:40,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:40,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:40,935 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-02 13:43:40,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:40,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:43:40,936 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:43:40,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:43:40,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:43:40,937 INFO L87 Difference]: Start difference. First operand 23204 states and 38292 transitions. Second operand 8 states. [2019-10-02 13:43:48,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:48,797 INFO L93 Difference]: Finished difference Result 71498 states and 123566 transitions. [2019-10-02 13:43:48,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 13:43:48,797 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 256 [2019-10-02 13:43:48,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:49,126 INFO L225 Difference]: With dead ends: 71498 [2019-10-02 13:43:49,126 INFO L226 Difference]: Without dead ends: 48359 [2019-10-02 13:43:49,222 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 13:43:49,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48359 states. [2019-10-02 13:43:52,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48359 to 32836. [2019-10-02 13:43:52,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32836 states. [2019-10-02 13:43:52,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32836 states to 32836 states and 60056 transitions. [2019-10-02 13:43:52,285 INFO L78 Accepts]: Start accepts. Automaton has 32836 states and 60056 transitions. Word has length 256 [2019-10-02 13:43:52,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:43:52,286 INFO L475 AbstractCegarLoop]: Abstraction has 32836 states and 60056 transitions. [2019-10-02 13:43:52,286 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:43:52,286 INFO L276 IsEmpty]: Start isEmpty. Operand 32836 states and 60056 transitions. [2019-10-02 13:43:52,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2019-10-02 13:43:52,419 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:52,420 INFO L411 BasicCegarLoop]: trace histogram [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, 1] [2019-10-02 13:43:52,420 INFO L418 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:52,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:52,421 INFO L82 PathProgramCache]: Analyzing trace with hash 733578961, now seen corresponding path program 1 times [2019-10-02 13:43:52,421 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:52,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:52,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:52,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:52,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:52,663 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:43:52,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:52,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-02 13:43:52,664 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 13:43:52,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 13:43:52,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-02 13:43:52,665 INFO L87 Difference]: Start difference. First operand 32836 states and 60056 transitions. Second operand 11 states. [2019-10-02 13:43:54,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:54,881 INFO L93 Difference]: Finished difference Result 57329 states and 97447 transitions. [2019-10-02 13:43:54,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-02 13:43:54,881 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 254 [2019-10-02 13:43:54,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:55,150 INFO L225 Difference]: With dead ends: 57329 [2019-10-02 13:43:55,153 INFO L226 Difference]: Without dead ends: 46848 [2019-10-02 13:43:55,205 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 13:43:55,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46848 states. [2019-10-02 13:43:58,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46848 to 46220. [2019-10-02 13:43:58,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46220 states. [2019-10-02 13:43:58,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46220 states to 46220 states and 80907 transitions. [2019-10-02 13:43:58,599 INFO L78 Accepts]: Start accepts. Automaton has 46220 states and 80907 transitions. Word has length 254 [2019-10-02 13:43:58,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:43:58,600 INFO L475 AbstractCegarLoop]: Abstraction has 46220 states and 80907 transitions. [2019-10-02 13:43:58,600 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 13:43:58,600 INFO L276 IsEmpty]: Start isEmpty. Operand 46220 states and 80907 transitions. [2019-10-02 13:43:58,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-10-02 13:43:58,673 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:58,673 INFO L411 BasicCegarLoop]: trace histogram [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, 1, 1] [2019-10-02 13:43:58,673 INFO L418 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:58,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:58,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1366519346, now seen corresponding path program 1 times [2019-10-02 13:43:58,674 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:58,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:58,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:58,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:58,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:00,111 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-02 13:44:00,112 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:44:00,112 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 13:44:00,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:00,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 3237 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:44:01,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:44:01,452 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-02 13:44:01,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:44:01,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [49] total 55 [2019-10-02 13:44:01,464 INFO L454 AbstractCegarLoop]: Interpolant automaton has 55 states [2019-10-02 13:44:01,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2019-10-02 13:44:01,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=2846, Unknown=0, NotChecked=0, Total=2970 [2019-10-02 13:44:01,465 INFO L87 Difference]: Start difference. First operand 46220 states and 80907 transitions. Second operand 55 states. [2019-10-02 13:44:14,617 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 16 [2019-10-02 13:44:28,443 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2019-10-02 13:44:48,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:48,736 INFO L93 Difference]: Finished difference Result 325483 states and 557466 transitions. [2019-10-02 13:44:48,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2019-10-02 13:44:48,736 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 255 [2019-10-02 13:44:48,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:50,314 INFO L225 Difference]: With dead ends: 325483 [2019-10-02 13:44:50,314 INFO L226 Difference]: Without dead ends: 279292 [2019-10-02 13:44:50,563 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 276 SyntacticMatches, 1 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14639 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=2040, Invalid=45702, Unknown=0, NotChecked=0, Total=47742 [2019-10-02 13:44:50,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279292 states. [2019-10-02 13:45:13,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279292 to 273453. [2019-10-02 13:45:13,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273453 states. [2019-10-02 13:45:14,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273453 states to 273453 states and 452288 transitions. [2019-10-02 13:45:14,228 INFO L78 Accepts]: Start accepts. Automaton has 273453 states and 452288 transitions. Word has length 255 [2019-10-02 13:45:14,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:45:14,229 INFO L475 AbstractCegarLoop]: Abstraction has 273453 states and 452288 transitions. [2019-10-02 13:45:14,229 INFO L476 AbstractCegarLoop]: Interpolant automaton has 55 states. [2019-10-02 13:45:14,229 INFO L276 IsEmpty]: Start isEmpty. Operand 273453 states and 452288 transitions. [2019-10-02 13:45:14,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-10-02 13:45:14,585 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:45:14,585 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-10-02 13:45:14,586 INFO L418 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:45:14,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:45:14,586 INFO L82 PathProgramCache]: Analyzing trace with hash -919462957, now seen corresponding path program 1 times [2019-10-02 13:45:14,586 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:45:14,586 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:45:14,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:14,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:14,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:19,560 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-02 13:45:19,560 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:45:19,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:45:19,561 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:45:19,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:45:19,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:45:19,562 INFO L87 Difference]: Start difference. First operand 273453 states and 452288 transitions. Second operand 3 states. [2019-10-02 13:45:37,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:37,805 INFO L93 Difference]: Finished difference Result 579500 states and 988090 transitions. [2019-10-02 13:45:37,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:45:37,805 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 263 [2019-10-02 13:45:37,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:39,014 INFO L225 Difference]: With dead ends: 579500 [2019-10-02 13:45:39,015 INFO L226 Difference]: Without dead ends: 306171 [2019-10-02 13:45:39,518 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 13:45:39,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306171 states. [2019-10-02 13:46:04,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306171 to 306157. [2019-10-02 13:46:04,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306157 states. [2019-10-02 13:46:05,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306157 states to 306157 states and 535040 transitions. [2019-10-02 13:46:05,186 INFO L78 Accepts]: Start accepts. Automaton has 306157 states and 535040 transitions. Word has length 263 [2019-10-02 13:46:05,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:46:05,187 INFO L475 AbstractCegarLoop]: Abstraction has 306157 states and 535040 transitions. [2019-10-02 13:46:05,187 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:46:05,187 INFO L276 IsEmpty]: Start isEmpty. Operand 306157 states and 535040 transitions. [2019-10-02 13:46:07,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2019-10-02 13:46:07,339 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:46:07,339 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-10-02 13:46:07,339 INFO L418 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:46:07,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:46:07,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1585015067, now seen corresponding path program 1 times [2019-10-02 13:46:07,340 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:46:07,340 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:46:07,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:46:07,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:46:07,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:46:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:46:09,368 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-02 13:46:09,368 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:46:09,368 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 13:46:09,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:46:09,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:46:09,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 3261 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:46:09,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:46:10,825 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-02 13:46:10,836 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:46:10,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [61] total 65 [2019-10-02 13:46:10,837 INFO L454 AbstractCegarLoop]: Interpolant automaton has 65 states [2019-10-02 13:46:10,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2019-10-02 13:46:10,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=4017, Unknown=0, NotChecked=0, Total=4160 [2019-10-02 13:46:10,839 INFO L87 Difference]: Start difference. First operand 306157 states and 535040 transitions. Second operand 65 states. [2019-10-02 13:46:19,705 WARN L191 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2019-10-02 13:46:25,899 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2019-10-02 13:53:08,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:53:08,862 INFO L93 Difference]: Finished difference Result 3115146 states and 5304448 transitions. [2019-10-02 13:53:08,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 923 states. [2019-10-02 13:53:08,862 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 265 [2019-10-02 13:53:08,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted.