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_spec27_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 13:04:25,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 13:04:25,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 13:04:25,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 13:04:25,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 13:04:25,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 13:04:25,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 13:04:25,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 13:04:25,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 13:04:25,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 13:04:25,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 13:04:25,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 13:04:25,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 13:04:25,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 13:04:25,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 13:04:25,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 13:04:25,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 13:04:25,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 13:04:25,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 13:04:25,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 13:04:25,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 13:04:25,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 13:04:25,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 13:04:25,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 13:04:25,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 13:04:25,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 13:04:25,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 13:04:25,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 13:04:25,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 13:04:25,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 13:04:25,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 13:04:25,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 13:04:25,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 13:04:25,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 13:04:25,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 13:04:25,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 13:04:25,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 13:04:25,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 13:04:25,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 13:04:25,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 13:04:25,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 13:04:25,817 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 13:04:25,832 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 13:04:25,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 13:04:25,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 13:04:25,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 13:04:25,838 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 13:04:25,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 13:04:25,838 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 13:04:25,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 13:04:25,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 13:04:25,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 13:04:25,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 13:04:25,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 13:04:25,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 13:04:25,840 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 13:04:25,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 13:04:25,841 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 13:04:25,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 13:04:25,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 13:04:25,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 13:04:25,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 13:04:25,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 13:04:25,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 13:04:25,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 13:04:25,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 13:04:25,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 13:04:25,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 13:04:25,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 13:04:25,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 13:04:25,844 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 13:04:25,876 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 13:04:25,888 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 13:04:25,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 13:04:25,895 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 13:04:25,896 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 13:04:25,898 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product19.cil.c [2019-10-02 13:04:25,967 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17afaae36/78a41f53b17645deae033a66be3a94b1/FLAGf79f4d003 [2019-10-02 13:04:26,660 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 13:04:26,661 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product19.cil.c [2019-10-02 13:04:26,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17afaae36/78a41f53b17645deae033a66be3a94b1/FLAGf79f4d003 [2019-10-02 13:04:26,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17afaae36/78a41f53b17645deae033a66be3a94b1 [2019-10-02 13:04:26,862 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 13:04:26,864 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 13:04:26,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 13:04:26,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 13:04:26,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 13:04:26,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:04:26" (1/1) ... [2019-10-02 13:04:26,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@550cc6c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:04:26, skipping insertion in model container [2019-10-02 13:04:26,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:04:26" (1/1) ... [2019-10-02 13:04:26,880 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 13:04:26,969 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 13:04:27,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:04:27,763 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 13:04:27,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:04:28,023 INFO L192 MainTranslator]: Completed translation [2019-10-02 13:04:28,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:04:28 WrapperNode [2019-10-02 13:04:28,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 13:04:28,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 13:04:28,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 13:04:28,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 13:04:28,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:04:28" (1/1) ... [2019-10-02 13:04:28,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:04:28" (1/1) ... [2019-10-02 13:04:28,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:04:28" (1/1) ... [2019-10-02 13:04:28,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:04:28" (1/1) ... [2019-10-02 13:04:28,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:04:28" (1/1) ... [2019-10-02 13:04:28,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:04:28" (1/1) ... [2019-10-02 13:04:28,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:04:28" (1/1) ... [2019-10-02 13:04:28,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 13:04:28,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 13:04:28,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 13:04:28,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 13:04:28,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:04:28" (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 13:04:28,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 13:04:28,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 13:04:28,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-02 13:04:28,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-02 13:04:28,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-02 13:04:28,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-02 13:04:28,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-02 13:04:28,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-02 13:04:28,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-02 13:04:28,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-02 13:04:28,328 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-02 13:04:28,328 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-02 13:04:28,329 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-02 13:04:28,329 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-02 13:04:28,330 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-02 13:04:28,330 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-02 13:04:28,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-02 13:04:28,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-02 13:04:28,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-02 13:04:28,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-02 13:04:28,335 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-02 13:04:28,335 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-02 13:04:28,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-02 13:04:28,336 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 13:04:28,336 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-02 13:04:28,336 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-02 13:04:28,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-02 13:04:28,337 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-02 13:04:28,337 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-02 13:04:28,338 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-02 13:04:28,338 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-02 13:04:28,338 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-02 13:04:28,338 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-02 13:04:28,338 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-02 13:04:28,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-02 13:04:28,339 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-02 13:04:28,339 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-02 13:04:28,339 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-02 13:04:28,339 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-02 13:04:28,340 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-02 13:04:28,340 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-02 13:04:28,340 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-02 13:04:28,341 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-02 13:04:28,341 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-02 13:04:28,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-02 13:04:28,341 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-02 13:04:28,342 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-02 13:04:28,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-02 13:04:28,342 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-02 13:04:28,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-02 13:04:28,343 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-02 13:04:28,343 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-02 13:04:28,343 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-02 13:04:28,343 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-02 13:04:28,344 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-02 13:04:28,344 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-02 13:04:28,344 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-02 13:04:28,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-02 13:04:28,345 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-02 13:04:28,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-02 13:04:28,345 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-02 13:04:28,346 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-02 13:04:28,346 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-02 13:04:28,346 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-02 13:04:28,346 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-02 13:04:28,346 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-02 13:04:28,347 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-02 13:04:28,347 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-02 13:04:28,347 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-02 13:04:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-02 13:04:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-02 13:04:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-02 13:04:28,349 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-02 13:04:28,349 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-02 13:04:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-02 13:04:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-02 13:04:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-02 13:04:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-02 13:04:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-02 13:04:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-02 13:04:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-02 13:04:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-02 13:04:28,352 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-02 13:04:28,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-02 13:04:28,352 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-02 13:04:28,352 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-02 13:04:28,352 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-02 13:04:28,353 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-02 13:04:28,354 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-02 13:04:28,354 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-02 13:04:28,354 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-02 13:04:28,355 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-02 13:04:28,355 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-02 13:04:28,356 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-02 13:04:28,356 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-02 13:04:28,356 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-02 13:04:28,356 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-02 13:04:28,357 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-02 13:04:28,357 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-02 13:04:28,357 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-02 13:04:28,357 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-02 13:04:28,357 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-02 13:04:28,358 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-02 13:04:28,358 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-02 13:04:28,358 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-02 13:04:28,358 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-02 13:04:28,359 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-02 13:04:28,359 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-02 13:04:28,359 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-02 13:04:28,359 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-02 13:04:28,359 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-02 13:04:28,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 13:04:28,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 13:04:28,360 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-02 13:04:28,360 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 13:04:28,360 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 13:04:28,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-02 13:04:28,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 13:04:28,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 13:04:28,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 13:04:28,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 13:04:28,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-02 13:04:28,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 13:04:28,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-02 13:04:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-02 13:04:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 13:04:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-02 13:04:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-02 13:04:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 13:04:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-02 13:04:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-02 13:04:28,365 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-02 13:04:28,365 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-02 13:04:28,365 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-02 13:04:28,365 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-02 13:04:28,366 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-02 13:04:28,366 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-02 13:04:28,366 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-02 13:04:28,366 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-02 13:04:28,367 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-02 13:04:28,370 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-02 13:04:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-02 13:04:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-02 13:04:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-02 13:04:28,378 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-02 13:04:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-02 13:04:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-02 13:04:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-02 13:04:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-02 13:04:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-02 13:04:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-02 13:04:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-02 13:04:28,380 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-02 13:04:28,380 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-02 13:04:28,380 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-02 13:04:28,380 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-02 13:04:28,381 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-02 13:04:28,381 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-02 13:04:28,381 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-02 13:04:28,381 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-02 13:04:28,381 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-02 13:04:28,381 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-02 13:04:28,381 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 13:04:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-02 13:04:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-02 13:04:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-02 13:04:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-02 13:04:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-02 13:04:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-02 13:04:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-02 13:04:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-02 13:04:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-02 13:04:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-02 13:04:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-02 13:04:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-02 13:04:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-02 13:04:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-02 13:04:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-02 13:04:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-02 13:04:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-02 13:04:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-02 13:04:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-02 13:04:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-02 13:04:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-02 13:04:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-02 13:04:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-02 13:04:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-02 13:04:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-02 13:04:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-02 13:04:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-02 13:04:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-02 13:04:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-02 13:04:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-02 13:04:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-02 13:04:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-02 13:04:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-02 13:04:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-02 13:04:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-02 13:04:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-02 13:04:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-02 13:04:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-02 13:04:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-02 13:04:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-02 13:04:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-02 13:04:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-02 13:04:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-02 13:04:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-02 13:04:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-02 13:04:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-02 13:04:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-02 13:04:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-02 13:04:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-02 13:04:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-02 13:04:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-02 13:04:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-02 13:04:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-02 13:04:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-02 13:04:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-02 13:04:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-02 13:04:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-02 13:04:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-02 13:04:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-02 13:04:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-02 13:04:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-02 13:04:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-02 13:04:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-02 13:04:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-02 13:04:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-02 13:04:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-02 13:04:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-02 13:04:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-02 13:04:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-02 13:04:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-02 13:04:28,391 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-02 13:04:28,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 13:04:28,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 13:04:28,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 13:04:30,469 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 13:04:30,470 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-02 13:04:30,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:04:30 BoogieIcfgContainer [2019-10-02 13:04:30,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 13:04:30,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 13:04:30,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 13:04:30,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 13:04:30,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 01:04:26" (1/3) ... [2019-10-02 13:04:30,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b9047c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:04:30, skipping insertion in model container [2019-10-02 13:04:30,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:04:28" (2/3) ... [2019-10-02 13:04:30,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b9047c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:04:30, skipping insertion in model container [2019-10-02 13:04:30,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:04:30" (3/3) ... [2019-10-02 13:04:30,481 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product19.cil.c [2019-10-02 13:04:30,491 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 13:04:30,504 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 13:04:30,521 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 13:04:30,563 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 13:04:30,564 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 13:04:30,564 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 13:04:30,564 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 13:04:30,564 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 13:04:30,564 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 13:04:30,565 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 13:04:30,565 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 13:04:30,565 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 13:04:30,603 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states. [2019-10-02 13:04:30,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-02 13:04:30,635 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:30,637 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:04:30,641 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:30,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:30,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1324397403, now seen corresponding path program 1 times [2019-10-02 13:04:30,653 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:30,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:30,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:30,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:30,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:31,287 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-02 13:04:31,289 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:04:31,290 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 13:04:31,295 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 13:04:31,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 13:04:31,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 13:04:31,308 INFO L87 Difference]: Start difference. First operand 496 states. Second operand 2 states. [2019-10-02 13:04:31,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:31,434 INFO L93 Difference]: Finished difference Result 734 states and 963 transitions. [2019-10-02 13:04:31,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 13:04:31,437 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 179 [2019-10-02 13:04:31,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:31,476 INFO L225 Difference]: With dead ends: 734 [2019-10-02 13:04:31,476 INFO L226 Difference]: Without dead ends: 473 [2019-10-02 13:04:31,487 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 13:04:31,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2019-10-02 13:04:31,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2019-10-02 13:04:31,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2019-10-02 13:04:31,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 624 transitions. [2019-10-02 13:04:31,625 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 624 transitions. Word has length 179 [2019-10-02 13:04:31,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:31,629 INFO L475 AbstractCegarLoop]: Abstraction has 473 states and 624 transitions. [2019-10-02 13:04:31,629 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 13:04:31,629 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 624 transitions. [2019-10-02 13:04:31,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-02 13:04:31,639 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:31,639 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:04:31,640 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:31,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:31,642 INFO L82 PathProgramCache]: Analyzing trace with hash -703879322, now seen corresponding path program 1 times [2019-10-02 13:04:31,642 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:31,642 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:31,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:31,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:31,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:31,936 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-02 13:04:31,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:04:31,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:04:31,947 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:04:31,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:04:31,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:04:31,948 INFO L87 Difference]: Start difference. First operand 473 states and 624 transitions. Second operand 3 states. [2019-10-02 13:04:32,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:32,022 INFO L93 Difference]: Finished difference Result 717 states and 928 transitions. [2019-10-02 13:04:32,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:04:32,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-02 13:04:32,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:32,030 INFO L225 Difference]: With dead ends: 717 [2019-10-02 13:04:32,031 INFO L226 Difference]: Without dead ends: 476 [2019-10-02 13:04:32,042 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 13:04:32,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2019-10-02 13:04:32,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 475. [2019-10-02 13:04:32,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2019-10-02 13:04:32,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 626 transitions. [2019-10-02 13:04:32,086 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 626 transitions. Word has length 180 [2019-10-02 13:04:32,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:32,088 INFO L475 AbstractCegarLoop]: Abstraction has 475 states and 626 transitions. [2019-10-02 13:04:32,088 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:04:32,089 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 626 transitions. [2019-10-02 13:04:32,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-02 13:04:32,095 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:32,095 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:04:32,096 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:32,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:32,096 INFO L82 PathProgramCache]: Analyzing trace with hash 655198354, now seen corresponding path program 1 times [2019-10-02 13:04:32,096 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:32,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:32,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:32,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:32,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:32,392 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-02 13:04:32,393 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:04:32,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:04:32,397 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:04:32,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:04:32,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:04:32,400 INFO L87 Difference]: Start difference. First operand 475 states and 626 transitions. Second operand 3 states. [2019-10-02 13:04:32,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:32,452 INFO L93 Difference]: Finished difference Result 926 states and 1250 transitions. [2019-10-02 13:04:32,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:04:32,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-10-02 13:04:32,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:32,461 INFO L225 Difference]: With dead ends: 926 [2019-10-02 13:04:32,461 INFO L226 Difference]: Without dead ends: 516 [2019-10-02 13:04:32,463 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 13:04:32,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2019-10-02 13:04:32,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 515. [2019-10-02 13:04:32,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2019-10-02 13:04:32,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 695 transitions. [2019-10-02 13:04:32,515 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 695 transitions. Word has length 186 [2019-10-02 13:04:32,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:32,516 INFO L475 AbstractCegarLoop]: Abstraction has 515 states and 695 transitions. [2019-10-02 13:04:32,516 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:04:32,516 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 695 transitions. [2019-10-02 13:04:32,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-02 13:04:32,529 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:32,529 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:04:32,529 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:32,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:32,530 INFO L82 PathProgramCache]: Analyzing trace with hash 833813007, now seen corresponding path program 1 times [2019-10-02 13:04:32,531 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:32,531 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:32,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:32,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:32,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:32,902 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-02 13:04:32,902 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:04:32,902 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:04:32,903 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:04:32,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:04:32,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:04:32,904 INFO L87 Difference]: Start difference. First operand 515 states and 695 transitions. Second operand 8 states. [2019-10-02 13:04:32,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:32,999 INFO L93 Difference]: Finished difference Result 743 states and 984 transitions. [2019-10-02 13:04:32,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 13:04:33,000 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2019-10-02 13:04:33,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:33,009 INFO L225 Difference]: With dead ends: 743 [2019-10-02 13:04:33,009 INFO L226 Difference]: Without dead ends: 515 [2019-10-02 13:04:33,011 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:04:33,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2019-10-02 13:04:33,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2019-10-02 13:04:33,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2019-10-02 13:04:33,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 694 transitions. [2019-10-02 13:04:33,049 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 694 transitions. Word has length 187 [2019-10-02 13:04:33,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:33,050 INFO L475 AbstractCegarLoop]: Abstraction has 515 states and 694 transitions. [2019-10-02 13:04:33,050 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:04:33,050 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 694 transitions. [2019-10-02 13:04:33,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-02 13:04:33,057 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:33,057 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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 13:04:33,057 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:33,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:33,058 INFO L82 PathProgramCache]: Analyzing trace with hash 2036488964, now seen corresponding path program 1 times [2019-10-02 13:04:33,058 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:33,058 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:33,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:33,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:33,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:33,408 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-02 13:04:33,410 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:04:33,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-02 13:04:33,411 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 13:04:33,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 13:04:33,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 13:04:33,412 INFO L87 Difference]: Start difference. First operand 515 states and 694 transitions. Second operand 7 states. [2019-10-02 13:04:35,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:35,998 INFO L93 Difference]: Finished difference Result 994 states and 1300 transitions. [2019-10-02 13:04:35,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-02 13:04:35,998 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2019-10-02 13:04:35,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:36,004 INFO L225 Difference]: With dead ends: 994 [2019-10-02 13:04:36,004 INFO L226 Difference]: Without dead ends: 758 [2019-10-02 13:04:36,005 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-02 13:04:36,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2019-10-02 13:04:36,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 749. [2019-10-02 13:04:36,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2019-10-02 13:04:36,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 988 transitions. [2019-10-02 13:04:36,048 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 988 transitions. Word has length 194 [2019-10-02 13:04:36,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:36,049 INFO L475 AbstractCegarLoop]: Abstraction has 749 states and 988 transitions. [2019-10-02 13:04:36,049 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 13:04:36,050 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 988 transitions. [2019-10-02 13:04:36,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-02 13:04:36,053 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:36,053 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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 13:04:36,054 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:36,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:36,054 INFO L82 PathProgramCache]: Analyzing trace with hash 820930343, now seen corresponding path program 1 times [2019-10-02 13:04:36,054 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:36,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:36,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:36,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:36,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:36,596 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-02 13:04:36,597 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:04:36,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-02 13:04:36,597 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-02 13:04:36,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-02 13:04:36,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2019-10-02 13:04:36,598 INFO L87 Difference]: Start difference. First operand 749 states and 988 transitions. Second operand 24 states. [2019-10-02 13:04:37,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:37,234 INFO L93 Difference]: Finished difference Result 1301 states and 1693 transitions. [2019-10-02 13:04:37,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-10-02 13:04:37,235 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 195 [2019-10-02 13:04:37,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:37,241 INFO L225 Difference]: With dead ends: 1301 [2019-10-02 13:04:37,242 INFO L226 Difference]: Without dead ends: 793 [2019-10-02 13:04:37,244 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=1037, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 13:04:37,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2019-10-02 13:04:37,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 789. [2019-10-02 13:04:37,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2019-10-02 13:04:37,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1036 transitions. [2019-10-02 13:04:37,292 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1036 transitions. Word has length 195 [2019-10-02 13:04:37,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:37,296 INFO L475 AbstractCegarLoop]: Abstraction has 789 states and 1036 transitions. [2019-10-02 13:04:37,296 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-02 13:04:37,296 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1036 transitions. [2019-10-02 13:04:37,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-02 13:04:37,300 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:37,301 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:04:37,301 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:37,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:37,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1287311709, now seen corresponding path program 1 times [2019-10-02 13:04:37,302 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:37,302 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:37,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:37,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:37,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:37,617 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-02 13:04:37,618 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:04:37,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:04:37,619 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:04:37,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:04:37,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:04:37,620 INFO L87 Difference]: Start difference. First operand 789 states and 1036 transitions. Second operand 8 states. [2019-10-02 13:04:42,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:42,254 INFO L93 Difference]: Finished difference Result 2335 states and 3002 transitions. [2019-10-02 13:04:42,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-02 13:04:42,255 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 226 [2019-10-02 13:04:42,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:42,270 INFO L225 Difference]: With dead ends: 2335 [2019-10-02 13:04:42,271 INFO L226 Difference]: Without dead ends: 1847 [2019-10-02 13:04:42,278 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2019-10-02 13:04:42,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2019-10-02 13:04:42,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1833. [2019-10-02 13:04:42,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1833 states. [2019-10-02 13:04:42,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2372 transitions. [2019-10-02 13:04:42,448 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2372 transitions. Word has length 226 [2019-10-02 13:04:42,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:42,450 INFO L475 AbstractCegarLoop]: Abstraction has 1833 states and 2372 transitions. [2019-10-02 13:04:42,451 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:04:42,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2372 transitions. [2019-10-02 13:04:42,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-02 13:04:42,459 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:42,459 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:04:42,460 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:42,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:42,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1051299991, now seen corresponding path program 1 times [2019-10-02 13:04:42,460 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:42,461 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:42,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:42,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:42,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:42,967 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-02 13:04:42,968 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:04:42,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-02 13:04:42,968 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-02 13:04:42,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-02 13:04:42,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-02 13:04:42,969 INFO L87 Difference]: Start difference. First operand 1833 states and 2372 transitions. Second operand 18 states. [2019-10-02 13:04:43,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:43,408 INFO L93 Difference]: Finished difference Result 2522 states and 3249 transitions. [2019-10-02 13:04:43,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-02 13:04:43,408 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 227 [2019-10-02 13:04:43,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:43,418 INFO L225 Difference]: With dead ends: 2522 [2019-10-02 13:04:43,419 INFO L226 Difference]: Without dead ends: 1379 [2019-10-02 13:04:43,423 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-02 13:04:43,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2019-10-02 13:04:43,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1373. [2019-10-02 13:04:43,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1373 states. [2019-10-02 13:04:43,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 1798 transitions. [2019-10-02 13:04:43,506 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 1798 transitions. Word has length 227 [2019-10-02 13:04:43,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:43,507 INFO L475 AbstractCegarLoop]: Abstraction has 1373 states and 1798 transitions. [2019-10-02 13:04:43,507 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-02 13:04:43,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 1798 transitions. [2019-10-02 13:04:43,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-02 13:04:43,513 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:43,513 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:04:43,513 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:43,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:43,514 INFO L82 PathProgramCache]: Analyzing trace with hash 228824622, now seen corresponding path program 1 times [2019-10-02 13:04:43,514 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:43,514 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:43,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:43,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:43,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:43,733 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-02 13:04:43,733 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:04:43,733 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 13:04:43,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:44,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 2733 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:04:44,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:04:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-02 13:04:44,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:04:44,704 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2019-10-02 13:04:44,707 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-02 13:04:44,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-02 13:04:44,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-10-02 13:04:44,710 INFO L87 Difference]: Start difference. First operand 1373 states and 1798 transitions. Second operand 14 states. [2019-10-02 13:04:49,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:49,812 INFO L93 Difference]: Finished difference Result 5053 states and 6733 transitions. [2019-10-02 13:04:49,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-02 13:04:49,812 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 236 [2019-10-02 13:04:49,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:49,835 INFO L225 Difference]: With dead ends: 5053 [2019-10-02 13:04:49,835 INFO L226 Difference]: Without dead ends: 3712 [2019-10-02 13:04:49,841 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2019-10-02 13:04:49,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3712 states. [2019-10-02 13:04:50,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3712 to 3598. [2019-10-02 13:04:50,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3598 states. [2019-10-02 13:04:50,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3598 states to 3598 states and 4769 transitions. [2019-10-02 13:04:50,041 INFO L78 Accepts]: Start accepts. Automaton has 3598 states and 4769 transitions. Word has length 236 [2019-10-02 13:04:50,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:50,041 INFO L475 AbstractCegarLoop]: Abstraction has 3598 states and 4769 transitions. [2019-10-02 13:04:50,041 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-02 13:04:50,042 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 4769 transitions. [2019-10-02 13:04:50,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-02 13:04:50,049 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:50,049 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 13:04:50,049 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:50,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:50,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1925401981, now seen corresponding path program 1 times [2019-10-02 13:04:50,050 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:50,050 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:50,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:50,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:50,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:50,283 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:04:50,284 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:04:50,284 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 13:04:50,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:50,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 2735 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:04:50,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:04:51,086 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 13:04:51,095 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:04:51,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2019-10-02 13:04:51,096 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-02 13:04:51,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-02 13:04:51,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-02 13:04:51,099 INFO L87 Difference]: Start difference. First operand 3598 states and 4769 transitions. Second operand 12 states. [2019-10-02 13:04:55,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:04:55,250 INFO L93 Difference]: Finished difference Result 13123 states and 17659 transitions. [2019-10-02 13:04:55,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-02 13:04:55,257 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 238 [2019-10-02 13:04:55,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:04:55,317 INFO L225 Difference]: With dead ends: 13123 [2019-10-02 13:04:55,317 INFO L226 Difference]: Without dead ends: 9564 [2019-10-02 13:04:55,333 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2019-10-02 13:04:55,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9564 states. [2019-10-02 13:04:55,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9564 to 9135. [2019-10-02 13:04:55,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9135 states. [2019-10-02 13:04:55,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9135 states to 9135 states and 12254 transitions. [2019-10-02 13:04:55,915 INFO L78 Accepts]: Start accepts. Automaton has 9135 states and 12254 transitions. Word has length 238 [2019-10-02 13:04:55,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:04:55,916 INFO L475 AbstractCegarLoop]: Abstraction has 9135 states and 12254 transitions. [2019-10-02 13:04:55,916 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-02 13:04:55,916 INFO L276 IsEmpty]: Start isEmpty. Operand 9135 states and 12254 transitions. [2019-10-02 13:04:55,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-02 13:04:55,934 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:04:55,934 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:04:55,935 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:04:55,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:04:55,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1080435238, now seen corresponding path program 1 times [2019-10-02 13:04:55,936 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:04:55,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:04:55,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:55,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:55,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:04:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:56,119 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-02 13:04:56,119 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:04:56,119 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:04:56,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:04:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:04:56,900 INFO L256 TraceCheckSpWp]: Trace formula consists of 2736 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:04:56,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:04:57,052 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-02 13:04:57,061 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:04:57,061 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2019-10-02 13:04:57,062 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-02 13:04:57,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-02 13:04:57,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-02 13:04:57,063 INFO L87 Difference]: Start difference. First operand 9135 states and 12254 transitions. Second operand 12 states. [2019-10-02 13:05:01,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:05:01,174 INFO L93 Difference]: Finished difference Result 33626 states and 45802 transitions. [2019-10-02 13:05:01,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-02 13:05:01,174 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 239 [2019-10-02 13:05:01,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:05:01,319 INFO L225 Difference]: With dead ends: 33626 [2019-10-02 13:05:01,319 INFO L226 Difference]: Without dead ends: 24520 [2019-10-02 13:05:01,369 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2019-10-02 13:05:01,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24520 states. [2019-10-02 13:05:03,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24520 to 24182. [2019-10-02 13:05:03,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24182 states. [2019-10-02 13:05:03,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24182 states to 24182 states and 32662 transitions. [2019-10-02 13:05:03,409 INFO L78 Accepts]: Start accepts. Automaton has 24182 states and 32662 transitions. Word has length 239 [2019-10-02 13:05:03,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:05:03,409 INFO L475 AbstractCegarLoop]: Abstraction has 24182 states and 32662 transitions. [2019-10-02 13:05:03,410 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-02 13:05:03,410 INFO L276 IsEmpty]: Start isEmpty. Operand 24182 states and 32662 transitions. [2019-10-02 13:05:03,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-02 13:05:03,437 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:05:03,438 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:05:03,438 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:05:03,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:05:03,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1399797992, now seen corresponding path program 1 times [2019-10-02 13:05:03,439 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:05:03,439 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:05:03,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:05:03,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:05:03,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:05:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:05:03,978 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-02 13:05:03,978 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:05:03,978 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:05:04,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:05:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:05:04,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 2738 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:05:04,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:05:04,946 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-02 13:05:04,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:05:04,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [29] total 36 [2019-10-02 13:05:04,954 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-10-02 13:05:04,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-10-02 13:05:04,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2019-10-02 13:05:04,955 INFO L87 Difference]: Start difference. First operand 24182 states and 32662 transitions. Second operand 36 states. [2019-10-02 13:05:54,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:05:54,428 INFO L93 Difference]: Finished difference Result 253690 states and 361136 transitions. [2019-10-02 13:05:54,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2019-10-02 13:05:54,429 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 241 [2019-10-02 13:05:54,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:05:55,604 INFO L225 Difference]: With dead ends: 253690 [2019-10-02 13:05:55,605 INFO L226 Difference]: Without dead ends: 229416 [2019-10-02 13:05:55,825 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6806 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1920, Invalid=21032, Unknown=0, NotChecked=0, Total=22952 [2019-10-02 13:05:56,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229416 states. [2019-10-02 13:06:09,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229416 to 165718. [2019-10-02 13:06:09,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165718 states. [2019-10-02 13:06:10,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165718 states to 165718 states and 231880 transitions. [2019-10-02 13:06:10,283 INFO L78 Accepts]: Start accepts. Automaton has 165718 states and 231880 transitions. Word has length 241 [2019-10-02 13:06:10,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:06:10,284 INFO L475 AbstractCegarLoop]: Abstraction has 165718 states and 231880 transitions. [2019-10-02 13:06:10,284 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-10-02 13:06:10,284 INFO L276 IsEmpty]: Start isEmpty. Operand 165718 states and 231880 transitions. [2019-10-02 13:06:10,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2019-10-02 13:06:10,422 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:06:10,423 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-02 13:06:10,423 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:06:10,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:06:10,424 INFO L82 PathProgramCache]: Analyzing trace with hash -2064582938, now seen corresponding path program 1 times [2019-10-02 13:06:10,424 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:06:10,424 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:06:10,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:06:10,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:06:10,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:06:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:06:10,971 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-02 13:06:10,971 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:06:10,971 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:06:11,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:06:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:06:11,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 2736 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:06:11,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:06:11,726 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (6)] Exception during sending of exit command (exit): Broken pipe [2019-10-02 13:06:11,737 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:06:11,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [29] total 34 [2019-10-02 13:06:11,739 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-10-02 13:06:11,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-10-02 13:06:11,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1048, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 13:06:11,740 INFO L87 Difference]: Start difference. First operand 165718 states and 231880 transitions. Second operand 34 states. [2019-10-02 13:07:35,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:07:35,436 INFO L93 Difference]: Finished difference Result 954591 states and 1367838 transitions. [2019-10-02 13:07:35,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2019-10-02 13:07:35,437 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 242 [2019-10-02 13:07:35,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:07:38,071 INFO L225 Difference]: With dead ends: 954591 [2019-10-02 13:07:38,072 INFO L226 Difference]: Without dead ends: 787894 [2019-10-02 13:07:38,467 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7026 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1908, Invalid=21044, Unknown=0, NotChecked=0, Total=22952 [2019-10-02 13:07:39,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787894 states. [2019-10-02 13:08:39,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787894 to 616054. [2019-10-02 13:08:39,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616054 states. [2019-10-02 13:08:42,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616054 states to 616054 states and 871739 transitions. [2019-10-02 13:08:42,834 INFO L78 Accepts]: Start accepts. Automaton has 616054 states and 871739 transitions. Word has length 242 [2019-10-02 13:08:42,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:08:42,835 INFO L475 AbstractCegarLoop]: Abstraction has 616054 states and 871739 transitions. [2019-10-02 13:08:42,835 INFO L476 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-10-02 13:08:42,835 INFO L276 IsEmpty]: Start isEmpty. Operand 616054 states and 871739 transitions. [2019-10-02 13:08:43,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-10-02 13:08:43,074 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:08:43,075 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:08:43,075 INFO L418 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:08:43,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:08:43,075 INFO L82 PathProgramCache]: Analyzing trace with hash 966596477, now seen corresponding path program 1 times [2019-10-02 13:08:43,076 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:08:43,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:08:43,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:43,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:43,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:43,616 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-02 13:08:43,616 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:08:43,616 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:08:43,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:44,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 2738 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:08:44,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:08:44,333 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-02 13:08:44,339 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:08:44,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [29] total 34 [2019-10-02 13:08:44,340 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-10-02 13:08:44,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-10-02 13:08:44,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1048, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 13:08:44,341 INFO L87 Difference]: Start difference. First operand 616054 states and 871739 transitions. Second operand 34 states. [2019-10-02 13:12:01,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:12:01,286 INFO L93 Difference]: Finished difference Result 2769773 states and 3959187 transitions. [2019-10-02 13:12:01,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2019-10-02 13:12:01,287 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 244 [2019-10-02 13:12:01,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:12:10,020 INFO L225 Difference]: With dead ends: 2769773 [2019-10-02 13:12:10,020 INFO L226 Difference]: Without dead ends: 2150580 [2019-10-02 13:12:12,759 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7026 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1908, Invalid=21044, Unknown=0, NotChecked=0, Total=22952 [2019-10-02 13:12:14,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150580 states.