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_spec4_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 13:32:53,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 13:32:53,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 13:32:53,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 13:32:53,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 13:32:53,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 13:32:53,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 13:32:53,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 13:32:53,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 13:32:53,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 13:32:53,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 13:32:53,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 13:32:53,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 13:32:53,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 13:32:53,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 13:32:53,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 13:32:53,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 13:32:53,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 13:32:53,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 13:32:53,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 13:32:53,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 13:32:53,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 13:32:53,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 13:32:53,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 13:32:53,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 13:32:53,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 13:32:53,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 13:32:53,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 13:32:53,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 13:32:53,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 13:32:53,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 13:32:53,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 13:32:53,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 13:32:53,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 13:32:53,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 13:32:53,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 13:32:53,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 13:32:53,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 13:32:53,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 13:32:53,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 13:32:53,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 13:32:53,588 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 13:32:53,605 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 13:32:53,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 13:32:53,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 13:32:53,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 13:32:53,612 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 13:32:53,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 13:32:53,613 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 13:32:53,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 13:32:53,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 13:32:53,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 13:32:53,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 13:32:53,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 13:32:53,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 13:32:53,614 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 13:32:53,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 13:32:53,615 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 13:32:53,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 13:32:53,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 13:32:53,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 13:32:53,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 13:32:53,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 13:32:53,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 13:32:53,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 13:32:53,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 13:32:53,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 13:32:53,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 13:32:53,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 13:32:53,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 13:32:53,619 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 13:32:53,672 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 13:32:53,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 13:32:53,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 13:32:53,694 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 13:32:53,695 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 13:32:53,695 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product32.cil.c [2019-10-02 13:32:53,764 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69e9aad8a/07c0b1dff72d4b7e84bec623572c12b8/FLAGeaa05e180 [2019-10-02 13:32:54,403 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 13:32:54,405 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product32.cil.c [2019-10-02 13:32:54,437 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69e9aad8a/07c0b1dff72d4b7e84bec623572c12b8/FLAGeaa05e180 [2019-10-02 13:32:54,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69e9aad8a/07c0b1dff72d4b7e84bec623572c12b8 [2019-10-02 13:32:54,596 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 13:32:54,598 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 13:32:54,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 13:32:54,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 13:32:54,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 13:32:54,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:32:54" (1/1) ... [2019-10-02 13:32:54,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d9af163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:32:54, skipping insertion in model container [2019-10-02 13:32:54,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:32:54" (1/1) ... [2019-10-02 13:32:54,615 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 13:32:54,695 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 13:32:55,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:32:55,358 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 13:32:55,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:32:55,615 INFO L192 MainTranslator]: Completed translation [2019-10-02 13:32:55,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:32:55 WrapperNode [2019-10-02 13:32:55,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 13:32:55,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 13:32:55,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 13:32:55,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 13:32:55,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:32:55" (1/1) ... [2019-10-02 13:32:55,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:32:55" (1/1) ... [2019-10-02 13:32:55,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:32:55" (1/1) ... [2019-10-02 13:32:55,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:32:55" (1/1) ... [2019-10-02 13:32:55,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:32:55" (1/1) ... [2019-10-02 13:32:55,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:32:55" (1/1) ... [2019-10-02 13:32:55,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:32:55" (1/1) ... [2019-10-02 13:32:55,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 13:32:55,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 13:32:55,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 13:32:55,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 13:32:55,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:32:55" (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 13:32:55,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 13:32:55,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 13:32:55,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-02 13:32:55,873 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-02 13:32:55,874 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-02 13:32:55,874 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-02 13:32:55,874 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-02 13:32:55,875 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-02 13:32:55,875 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-02 13:32:55,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-02 13:32:55,875 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-02 13:32:55,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-02 13:32:55,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-02 13:32:55,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-02 13:32:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-02 13:32:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-02 13:32:55,879 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-02 13:32:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-02 13:32:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-02 13:32:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-02 13:32:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-02 13:32:55,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-02 13:32:55,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-02 13:32:55,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-02 13:32:55,882 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-02 13:32:55,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-02 13:32:55,882 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-02 13:32:55,882 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-02 13:32:55,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-02 13:32:55,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-02 13:32:55,883 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-02 13:32:55,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-02 13:32:55,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-02 13:32:55,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-02 13:32:55,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-02 13:32:55,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-02 13:32:55,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-02 13:32:55,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-02 13:32:55,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-02 13:32:55,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-02 13:32:55,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-02 13:32:55,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-02 13:32:55,885 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-02 13:32:55,885 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-02 13:32:55,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-02 13:32:55,885 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 13:32:55,886 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-02 13:32:55,886 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-02 13:32:55,886 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-02 13:32:55,886 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-02 13:32:55,886 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-02 13:32:55,886 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-02 13:32:55,887 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-02 13:32:55,887 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-02 13:32:55,887 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-02 13:32:55,887 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-02 13:32:55,887 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-02 13:32:55,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-02 13:32:55,888 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-02 13:32:55,889 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-02 13:32:55,889 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-02 13:32:55,889 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-02 13:32:55,889 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-02 13:32:55,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-02 13:32:55,890 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-02 13:32:55,890 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-02 13:32:55,890 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-02 13:32:55,891 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-02 13:32:55,891 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-02 13:32:55,891 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-02 13:32:55,891 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-02 13:32:55,891 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-02 13:32:55,892 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-02 13:32:55,892 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-02 13:32:55,892 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-02 13:32:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-02 13:32:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-02 13:32:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-02 13:32:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-02 13:32:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-02 13:32:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-02 13:32:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-02 13:32:55,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-02 13:32:55,894 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-02 13:32:55,894 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-02 13:32:55,895 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-02 13:32:55,895 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-02 13:32:55,896 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-02 13:32:55,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-02 13:32:55,896 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-02 13:32:55,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-02 13:32:55,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-02 13:32:55,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-02 13:32:55,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-02 13:32:55,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-02 13:32:55,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-02 13:32:55,898 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-02 13:32:55,898 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-02 13:32:55,898 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-02 13:32:55,898 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-02 13:32:55,898 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-02 13:32:55,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-02 13:32:55,899 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-02 13:32:55,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-02 13:32:55,899 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-02 13:32:55,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-02 13:32:55,900 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-02 13:32:55,900 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-02 13:32:55,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-02 13:32:55,900 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-02 13:32:55,900 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-02 13:32:55,900 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-02 13:32:55,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-02 13:32:55,901 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-02 13:32:55,901 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-02 13:32:55,901 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-02 13:32:55,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-02 13:32:55,901 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-02 13:32:55,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 13:32:55,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 13:32:55,902 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-02 13:32:55,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-02 13:32:55,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-02 13:32:55,903 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-02 13:32:55,904 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-02 13:32:55,904 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-02 13:32:55,904 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-02 13:32:55,904 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-02 13:32:55,904 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-02 13:32:55,904 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-02 13:32:55,904 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-02 13:32:55,905 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-02 13:32:55,905 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-02 13:32:55,905 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-02 13:32:55,905 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-02 13:32:55,906 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-02 13:32:55,906 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-02 13:32:55,906 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-02 13:32:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-02 13:32:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-02 13:32:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-02 13:32:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-02 13:32:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-02 13:32:55,912 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-02 13:32:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-02 13:32:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-02 13:32:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-02 13:32:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-02 13:32:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-02 13:32:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-02 13:32:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-02 13:32:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-02 13:32:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-02 13:32:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-02 13:32:55,920 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-02 13:32:55,920 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-02 13:32:55,920 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-02 13:32:55,921 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-02 13:32:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-02 13:32:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-02 13:32:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-02 13:32:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-02 13:32:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-02 13:32:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-02 13:32:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-02 13:32:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-02 13:32:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-02 13:32:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-02 13:32:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 13:32:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-02 13:32:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-02 13:32:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-02 13:32:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-02 13:32:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-02 13:32:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-02 13:32:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-02 13:32:55,925 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-02 13:32:55,925 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-02 13:32:55,925 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-02 13:32:55,925 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-02 13:32:55,925 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-02 13:32:55,925 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-02 13:32:55,925 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-02 13:32:55,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 13:32:55,926 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-02 13:32:55,926 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-02 13:32:55,926 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-02 13:32:55,926 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-02 13:32:55,926 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-02 13:32:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-02 13:32:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-02 13:32:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-02 13:32:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-02 13:32:55,928 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-02 13:32:55,928 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-02 13:32:55,928 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-02 13:32:55,928 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-02 13:32:55,928 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-02 13:32:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-02 13:32:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-02 13:32:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-02 13:32:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-02 13:32:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-02 13:32:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-02 13:32:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-02 13:32:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-02 13:32:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-02 13:32:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-02 13:32:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-02 13:32:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-02 13:32:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-02 13:32:55,931 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-02 13:32:55,931 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-02 13:32:55,931 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-02 13:32:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-02 13:32:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-02 13:32:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-02 13:32:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-02 13:32:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-02 13:32:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-02 13:32:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-02 13:32:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-02 13:32:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-02 13:32:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-02 13:32:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-02 13:32:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-02 13:32:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-02 13:32:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 13:32:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 13:32:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-02 13:32:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 13:32:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 13:32:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 13:32:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 13:32:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-02 13:32:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 13:32:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-02 13:32:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-02 13:32:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 13:32:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-02 13:32:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-02 13:32:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-02 13:32:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-02 13:32:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-02 13:32:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-02 13:32:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-02 13:32:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-02 13:32:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-02 13:32:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 13:32:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 13:32:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 13:32:58,054 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 13:32:58,055 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-02 13:32:58,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:32:58 BoogieIcfgContainer [2019-10-02 13:32:58,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 13:32:58,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 13:32:58,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 13:32:58,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 13:32:58,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 01:32:54" (1/3) ... [2019-10-02 13:32:58,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58216958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:32:58, skipping insertion in model container [2019-10-02 13:32:58,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:32:55" (2/3) ... [2019-10-02 13:32:58,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58216958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:32:58, skipping insertion in model container [2019-10-02 13:32:58,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:32:58" (3/3) ... [2019-10-02 13:32:58,065 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product32.cil.c [2019-10-02 13:32:58,076 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 13:32:58,086 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 13:32:58,103 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 13:32:58,150 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 13:32:58,151 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 13:32:58,151 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 13:32:58,151 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 13:32:58,153 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 13:32:58,158 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 13:32:58,158 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 13:32:58,158 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 13:32:58,158 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 13:32:58,196 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states. [2019-10-02 13:32:58,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-02 13:32:58,223 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:32:58,225 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:32:58,227 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:32:58,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:32:58,234 INFO L82 PathProgramCache]: Analyzing trace with hash 460180424, now seen corresponding path program 1 times [2019-10-02 13:32:58,236 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:32:58,236 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:32:58,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:32:58,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:32:58,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:32:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:32:58,999 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-02 13:32:59,001 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:32:59,002 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 13:32:59,007 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 13:32:59,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 13:32:59,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 13:32:59,024 INFO L87 Difference]: Start difference. First operand 637 states. Second operand 2 states. [2019-10-02 13:32:59,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:32:59,110 INFO L93 Difference]: Finished difference Result 904 states and 1227 transitions. [2019-10-02 13:32:59,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 13:32:59,112 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 173 [2019-10-02 13:32:59,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:32:59,137 INFO L225 Difference]: With dead ends: 904 [2019-10-02 13:32:59,137 INFO L226 Difference]: Without dead ends: 580 [2019-10-02 13:32:59,144 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 13:32:59,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2019-10-02 13:32:59,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2019-10-02 13:32:59,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2019-10-02 13:32:59,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 792 transitions. [2019-10-02 13:32:59,278 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 792 transitions. Word has length 173 [2019-10-02 13:32:59,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:32:59,282 INFO L475 AbstractCegarLoop]: Abstraction has 580 states and 792 transitions. [2019-10-02 13:32:59,282 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 13:32:59,282 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 792 transitions. [2019-10-02 13:32:59,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-02 13:32:59,294 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:32:59,296 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:32:59,296 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:32:59,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:32:59,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1260551552, now seen corresponding path program 1 times [2019-10-02 13:32:59,297 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:32:59,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:32:59,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:32:59,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:32:59,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:32:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:32:59,624 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-02 13:32:59,624 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:32:59,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:32:59,634 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:32:59,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:32:59,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:32:59,635 INFO L87 Difference]: Start difference. First operand 580 states and 792 transitions. Second operand 3 states. [2019-10-02 13:32:59,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:32:59,716 INFO L93 Difference]: Finished difference Result 887 states and 1192 transitions. [2019-10-02 13:32:59,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:32:59,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-10-02 13:32:59,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:32:59,732 INFO L225 Difference]: With dead ends: 887 [2019-10-02 13:32:59,732 INFO L226 Difference]: Without dead ends: 583 [2019-10-02 13:32:59,742 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 13:32:59,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-10-02 13:32:59,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 582. [2019-10-02 13:32:59,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2019-10-02 13:32:59,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 794 transitions. [2019-10-02 13:32:59,795 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 794 transitions. Word has length 174 [2019-10-02 13:32:59,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:32:59,796 INFO L475 AbstractCegarLoop]: Abstraction has 582 states and 794 transitions. [2019-10-02 13:32:59,796 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:32:59,796 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 794 transitions. [2019-10-02 13:32:59,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-02 13:32:59,803 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:32:59,804 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:32:59,804 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:32:59,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:32:59,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1891942096, now seen corresponding path program 1 times [2019-10-02 13:32:59,805 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:32:59,805 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:32:59,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:32:59,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:32:59,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:32:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:33:00,017 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-02 13:33:00,017 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:33:00,017 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:33:00,018 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:33:00,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:33:00,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:33:00,019 INFO L87 Difference]: Start difference. First operand 582 states and 794 transitions. Second operand 3 states. [2019-10-02 13:33:00,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:33:00,051 INFO L93 Difference]: Finished difference Result 1142 states and 1589 transitions. [2019-10-02 13:33:00,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:33:00,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2019-10-02 13:33:00,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:33:00,056 INFO L225 Difference]: With dead ends: 1142 [2019-10-02 13:33:00,056 INFO L226 Difference]: Without dead ends: 625 [2019-10-02 13:33:00,058 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 13:33:00,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2019-10-02 13:33:00,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 624. [2019-10-02 13:33:00,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2019-10-02 13:33:00,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 866 transitions. [2019-10-02 13:33:00,082 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 866 transitions. Word has length 184 [2019-10-02 13:33:00,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:33:00,082 INFO L475 AbstractCegarLoop]: Abstraction has 624 states and 866 transitions. [2019-10-02 13:33:00,083 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:33:00,083 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 866 transitions. [2019-10-02 13:33:00,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-02 13:33:00,087 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:33:00,087 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:33:00,087 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:33:00,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:33:00,088 INFO L82 PathProgramCache]: Analyzing trace with hash -754508202, now seen corresponding path program 1 times [2019-10-02 13:33:00,088 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:33:00,088 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:33:00,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:00,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:33:00,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:33:00,213 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-02 13:33:00,213 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:33:00,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:33:00,214 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:33:00,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:33:00,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:33:00,215 INFO L87 Difference]: Start difference. First operand 624 states and 866 transitions. Second operand 3 states. [2019-10-02 13:33:00,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:33:00,249 INFO L93 Difference]: Finished difference Result 1265 states and 1800 transitions. [2019-10-02 13:33:00,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:33:00,249 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2019-10-02 13:33:00,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:33:00,254 INFO L225 Difference]: With dead ends: 1265 [2019-10-02 13:33:00,254 INFO L226 Difference]: Without dead ends: 706 [2019-10-02 13:33:00,256 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 13:33:00,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2019-10-02 13:33:00,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 705. [2019-10-02 13:33:00,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2019-10-02 13:33:00,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 1004 transitions. [2019-10-02 13:33:00,286 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 1004 transitions. Word has length 185 [2019-10-02 13:33:00,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:33:00,287 INFO L475 AbstractCegarLoop]: Abstraction has 705 states and 1004 transitions. [2019-10-02 13:33:00,287 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:33:00,287 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 1004 transitions. [2019-10-02 13:33:00,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-02 13:33:00,294 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:33:00,295 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:33:00,295 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:33:00,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:33:00,296 INFO L82 PathProgramCache]: Analyzing trace with hash 852653136, now seen corresponding path program 1 times [2019-10-02 13:33:00,296 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:33:00,296 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:33:00,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:00,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:33:00,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:33:00,503 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-02 13:33:00,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:33:00,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:33:00,505 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:33:00,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:33:00,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:33:00,506 INFO L87 Difference]: Start difference. First operand 705 states and 1004 transitions. Second operand 3 states. [2019-10-02 13:33:00,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:33:00,613 INFO L93 Difference]: Finished difference Result 1502 states and 2204 transitions. [2019-10-02 13:33:00,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:33:00,614 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-10-02 13:33:00,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:33:00,620 INFO L225 Difference]: With dead ends: 1502 [2019-10-02 13:33:00,621 INFO L226 Difference]: Without dead ends: 862 [2019-10-02 13:33:00,623 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 13:33:00,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2019-10-02 13:33:00,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 861. [2019-10-02 13:33:00,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2019-10-02 13:33:00,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1268 transitions. [2019-10-02 13:33:00,664 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1268 transitions. Word has length 186 [2019-10-02 13:33:00,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:33:00,664 INFO L475 AbstractCegarLoop]: Abstraction has 861 states and 1268 transitions. [2019-10-02 13:33:00,665 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:33:00,665 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1268 transitions. [2019-10-02 13:33:00,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-02 13:33:00,672 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:33:00,672 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:33:00,673 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:33:00,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:33:00,673 INFO L82 PathProgramCache]: Analyzing trace with hash -2089090250, now seen corresponding path program 1 times [2019-10-02 13:33:00,673 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:33:00,673 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:33:00,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:00,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:33:00,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:33:00,830 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-02 13:33:00,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:33:00,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:33:00,831 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:33:00,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:33:00,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:33:00,832 INFO L87 Difference]: Start difference. First operand 861 states and 1268 transitions. Second operand 3 states. [2019-10-02 13:33:00,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:33:00,879 INFO L93 Difference]: Finished difference Result 1958 states and 2976 transitions. [2019-10-02 13:33:00,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:33:00,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2019-10-02 13:33:00,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:33:00,887 INFO L225 Difference]: With dead ends: 1958 [2019-10-02 13:33:00,887 INFO L226 Difference]: Without dead ends: 1162 [2019-10-02 13:33:00,890 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 13:33:00,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2019-10-02 13:33:00,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1161. [2019-10-02 13:33:00,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1161 states. [2019-10-02 13:33:00,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1772 transitions. [2019-10-02 13:33:00,937 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1772 transitions. Word has length 187 [2019-10-02 13:33:00,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:33:00,938 INFO L475 AbstractCegarLoop]: Abstraction has 1161 states and 1772 transitions. [2019-10-02 13:33:00,938 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:33:00,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1772 transitions. [2019-10-02 13:33:00,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-02 13:33:00,946 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:33:00,946 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:33:00,946 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:33:00,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:33:00,947 INFO L82 PathProgramCache]: Analyzing trace with hash -579760363, now seen corresponding path program 1 times [2019-10-02 13:33:00,947 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:33:00,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:33:00,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:00,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:33:00,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:33:01,143 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-02 13:33:01,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:33:01,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-02 13:33:01,144 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 13:33:01,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 13:33:01,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 13:33:01,145 INFO L87 Difference]: Start difference. First operand 1161 states and 1772 transitions. Second operand 7 states. [2019-10-02 13:33:04,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:33:04,819 INFO L93 Difference]: Finished difference Result 1761 states and 2565 transitions. [2019-10-02 13:33:04,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-02 13:33:04,820 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2019-10-02 13:33:04,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:33:04,828 INFO L225 Difference]: With dead ends: 1761 [2019-10-02 13:33:04,828 INFO L226 Difference]: Without dead ends: 1468 [2019-10-02 13:33:04,830 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-02 13:33:04,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2019-10-02 13:33:04,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1459. [2019-10-02 13:33:04,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1459 states. [2019-10-02 13:33:04,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 2165 transitions. [2019-10-02 13:33:04,899 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 2165 transitions. Word has length 190 [2019-10-02 13:33:04,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:33:04,900 INFO L475 AbstractCegarLoop]: Abstraction has 1459 states and 2165 transitions. [2019-10-02 13:33:04,900 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 13:33:04,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 2165 transitions. [2019-10-02 13:33:04,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-02 13:33:04,907 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:33:04,907 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:33:04,908 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:33:04,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:33:04,908 INFO L82 PathProgramCache]: Analyzing trace with hash -810631432, now seen corresponding path program 1 times [2019-10-02 13:33:04,908 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:33:04,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:33:04,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:04,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:33:04,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:33:05,364 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-02 13:33:05,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:33:05,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-10-02 13:33:05,365 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-02 13:33:05,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-02 13:33:05,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-10-02 13:33:05,366 INFO L87 Difference]: Start difference. First operand 1459 states and 2165 transitions. Second operand 20 states. [2019-10-02 13:33:05,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:33:05,917 INFO L93 Difference]: Finished difference Result 2166 states and 3119 transitions. [2019-10-02 13:33:05,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-02 13:33:05,918 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 191 [2019-10-02 13:33:05,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:33:05,928 INFO L225 Difference]: With dead ends: 2166 [2019-10-02 13:33:05,929 INFO L226 Difference]: Without dead ends: 1569 [2019-10-02 13:33:05,932 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-02 13:33:05,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2019-10-02 13:33:05,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1567. [2019-10-02 13:33:05,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1567 states. [2019-10-02 13:33:06,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2316 transitions. [2019-10-02 13:33:06,010 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2316 transitions. Word has length 191 [2019-10-02 13:33:06,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:33:06,010 INFO L475 AbstractCegarLoop]: Abstraction has 1567 states and 2316 transitions. [2019-10-02 13:33:06,011 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-02 13:33:06,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2316 transitions. [2019-10-02 13:33:06,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-02 13:33:06,018 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:33:06,018 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:33:06,019 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:33:06,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:33:06,019 INFO L82 PathProgramCache]: Analyzing trace with hash 774123990, now seen corresponding path program 1 times [2019-10-02 13:33:06,019 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:33:06,019 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:33:06,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:06,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:33:06,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:33:06,233 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-02 13:33:06,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:33:06,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:33:06,235 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:33:06,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:33:06,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:33:06,236 INFO L87 Difference]: Start difference. First operand 1567 states and 2316 transitions. Second operand 8 states. [2019-10-02 13:33:07,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:33:07,262 INFO L93 Difference]: Finished difference Result 2816 states and 3991 transitions. [2019-10-02 13:33:07,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-02 13:33:07,263 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 200 [2019-10-02 13:33:07,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:33:07,289 INFO L225 Difference]: With dead ends: 2816 [2019-10-02 13:33:07,289 INFO L226 Difference]: Without dead ends: 2311 [2019-10-02 13:33:07,293 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-02 13:33:07,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2019-10-02 13:33:07,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2292. [2019-10-02 13:33:07,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2292 states. [2019-10-02 13:33:07,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 3294 transitions. [2019-10-02 13:33:07,486 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 3294 transitions. Word has length 200 [2019-10-02 13:33:07,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:33:07,487 INFO L475 AbstractCegarLoop]: Abstraction has 2292 states and 3294 transitions. [2019-10-02 13:33:07,487 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:33:07,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 3294 transitions. [2019-10-02 13:33:07,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-02 13:33:07,495 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:33:07,495 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:33:07,496 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:33:07,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:33:07,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1629602409, now seen corresponding path program 1 times [2019-10-02 13:33:07,496 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:33:07,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:33:07,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:07,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:33:07,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:33:07,835 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-02 13:33:07,836 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:33:07,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-02 13:33:07,837 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-02 13:33:07,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-02 13:33:07,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2019-10-02 13:33:07,838 INFO L87 Difference]: Start difference. First operand 2292 states and 3294 transitions. Second operand 19 states. [2019-10-02 13:33:08,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:33:08,901 INFO L93 Difference]: Finished difference Result 2981 states and 4218 transitions. [2019-10-02 13:33:08,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-02 13:33:08,902 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 201 [2019-10-02 13:33:08,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:33:08,916 INFO L225 Difference]: With dead ends: 2981 [2019-10-02 13:33:08,917 INFO L226 Difference]: Without dead ends: 2291 [2019-10-02 13:33:08,921 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=1075, Unknown=0, NotChecked=0, Total=1190 [2019-10-02 13:33:08,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2019-10-02 13:33:09,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2290. [2019-10-02 13:33:09,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2290 states. [2019-10-02 13:33:09,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2290 states to 2290 states and 3289 transitions. [2019-10-02 13:33:09,023 INFO L78 Accepts]: Start accepts. Automaton has 2290 states and 3289 transitions. Word has length 201 [2019-10-02 13:33:09,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:33:09,024 INFO L475 AbstractCegarLoop]: Abstraction has 2290 states and 3289 transitions. [2019-10-02 13:33:09,024 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-02 13:33:09,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2290 states and 3289 transitions. [2019-10-02 13:33:09,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-02 13:33:09,032 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:33:09,032 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:33:09,032 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:33:09,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:33:09,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1161770309, now seen corresponding path program 2 times [2019-10-02 13:33:09,033 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:33:09,033 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:33:09,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:09,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:33:09,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:33:09,283 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-02 13:33:09,284 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:33:09,284 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 13:33:09,456 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-10-02 13:33:09,806 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-10-02 13:33:09,806 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 13:33:09,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 2228 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-02 13:33:09,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:33:10,112 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-02 13:33:10,122 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:33:10,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2019-10-02 13:33:10,123 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-02 13:33:10,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-02 13:33:10,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2019-10-02 13:33:10,124 INFO L87 Difference]: Start difference. First operand 2290 states and 3289 transitions. Second operand 17 states. [2019-10-02 13:33:12,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:33:12,718 INFO L93 Difference]: Finished difference Result 5606 states and 8000 transitions. [2019-10-02 13:33:12,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-10-02 13:33:12,719 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 201 [2019-10-02 13:33:12,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:33:12,750 INFO L225 Difference]: With dead ends: 5606 [2019-10-02 13:33:12,750 INFO L226 Difference]: Without dead ends: 4364 [2019-10-02 13:33:12,758 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=199, Invalid=1523, Unknown=0, NotChecked=0, Total=1722 [2019-10-02 13:33:12,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4364 states. [2019-10-02 13:33:12,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4364 to 4339. [2019-10-02 13:33:12,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4339 states. [2019-10-02 13:33:12,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4339 states to 4339 states and 6305 transitions. [2019-10-02 13:33:12,991 INFO L78 Accepts]: Start accepts. Automaton has 4339 states and 6305 transitions. Word has length 201 [2019-10-02 13:33:12,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:33:12,991 INFO L475 AbstractCegarLoop]: Abstraction has 4339 states and 6305 transitions. [2019-10-02 13:33:12,991 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-02 13:33:12,991 INFO L276 IsEmpty]: Start isEmpty. Operand 4339 states and 6305 transitions. [2019-10-02 13:33:13,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2019-10-02 13:33:13,016 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:33:13,017 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:33:13,017 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:33:13,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:33:13,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1094371122, now seen corresponding path program 1 times [2019-10-02 13:33:13,018 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:33:13,018 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:33:13,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:13,022 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 13:33:13,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:33:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:33:13,639 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 29 proven. 14 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-10-02 13:33:13,640 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:33:13,640 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 13:33:13,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:33:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:33:14,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 3794 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:33:14,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:33:14,700 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-02 13:33:14,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:33:14,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [22] total 29 [2019-10-02 13:33:14,719 INFO L454 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-10-02 13:33:14,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-10-02 13:33:14,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=746, Unknown=0, NotChecked=0, Total=812 [2019-10-02 13:33:14,720 INFO L87 Difference]: Start difference. First operand 4339 states and 6305 transitions. Second operand 29 states. [2019-10-02 13:34:00,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:34:00,567 INFO L93 Difference]: Finished difference Result 33377 states and 49770 transitions. [2019-10-02 13:34:00,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2019-10-02 13:34:00,567 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 342 [2019-10-02 13:34:00,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:34:00,760 INFO L225 Difference]: With dead ends: 33377 [2019-10-02 13:34:00,760 INFO L226 Difference]: Without dead ends: 28668 [2019-10-02 13:34:00,811 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10433 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=2054, Invalid=28048, Unknown=0, NotChecked=0, Total=30102 [2019-10-02 13:34:00,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28668 states. [2019-10-02 13:34:02,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28668 to 26823. [2019-10-02 13:34:02,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26823 states. [2019-10-02 13:34:02,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26823 states to 26823 states and 39130 transitions. [2019-10-02 13:34:02,646 INFO L78 Accepts]: Start accepts. Automaton has 26823 states and 39130 transitions. Word has length 342 [2019-10-02 13:34:02,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:34:02,647 INFO L475 AbstractCegarLoop]: Abstraction has 26823 states and 39130 transitions. [2019-10-02 13:34:02,647 INFO L476 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-10-02 13:34:02,647 INFO L276 IsEmpty]: Start isEmpty. Operand 26823 states and 39130 transitions. [2019-10-02 13:34:02,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2019-10-02 13:34:02,759 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:34:02,760 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:34:02,760 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:34:02,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:34:02,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1314297308, now seen corresponding path program 1 times [2019-10-02 13:34:02,761 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:34:02,761 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:34:02,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:34:02,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:34:02,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:34:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:34:02,989 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2019-10-02 13:34:02,990 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:34:02,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 13:34:02,990 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 13:34:02,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 13:34:02,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 13:34:02,991 INFO L87 Difference]: Start difference. First operand 26823 states and 39130 transitions. Second operand 5 states. [2019-10-02 13:34:04,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:34:04,558 INFO L93 Difference]: Finished difference Result 48456 states and 69728 transitions. [2019-10-02 13:34:04,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-02 13:34:04,559 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 348 [2019-10-02 13:34:04,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:34:04,677 INFO L225 Difference]: With dead ends: 48456 [2019-10-02 13:34:04,677 INFO L226 Difference]: Without dead ends: 25833 [2019-10-02 13:34:04,757 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-02 13:34:04,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25833 states. [2019-10-02 13:34:05,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25833 to 25467. [2019-10-02 13:34:05,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25467 states. [2019-10-02 13:34:05,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25467 states to 25467 states and 36983 transitions. [2019-10-02 13:34:05,929 INFO L78 Accepts]: Start accepts. Automaton has 25467 states and 36983 transitions. Word has length 348 [2019-10-02 13:34:05,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:34:05,930 INFO L475 AbstractCegarLoop]: Abstraction has 25467 states and 36983 transitions. [2019-10-02 13:34:05,930 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 13:34:05,930 INFO L276 IsEmpty]: Start isEmpty. Operand 25467 states and 36983 transitions. [2019-10-02 13:34:06,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2019-10-02 13:34:06,005 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:34:06,005 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:34:06,006 INFO L418 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:34:06,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:34:06,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1287194054, now seen corresponding path program 1 times [2019-10-02 13:34:06,006 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:34:06,006 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:34:06,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:34:06,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:34:06,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:34:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:34:06,471 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2019-10-02 13:34:06,472 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:34:06,472 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 13:34:06,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:34:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:34:07,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 3796 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:34:07,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:34:07,273 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-02 13:34:07,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:34:07,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2019-10-02 13:34:07,282 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-02 13:34:07,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-02 13:34:07,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-02 13:34:07,283 INFO L87 Difference]: Start difference. First operand 25467 states and 36983 transitions. Second operand 10 states. [2019-10-02 13:34:13,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:34:13,460 INFO L93 Difference]: Finished difference Result 82819 states and 123402 transitions. [2019-10-02 13:34:13,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-02 13:34:13,461 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 344 [2019-10-02 13:34:13,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:34:13,758 INFO L225 Difference]: With dead ends: 82819 [2019-10-02 13:34:13,758 INFO L226 Difference]: Without dead ends: 57403 [2019-10-02 13:34:13,849 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2019-10-02 13:34:13,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57403 states. [2019-10-02 13:34:18,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57403 to 54517. [2019-10-02 13:34:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54517 states. [2019-10-02 13:34:18,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54517 states to 54517 states and 81014 transitions. [2019-10-02 13:34:18,573 INFO L78 Accepts]: Start accepts. Automaton has 54517 states and 81014 transitions. Word has length 344 [2019-10-02 13:34:18,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:34:18,574 INFO L475 AbstractCegarLoop]: Abstraction has 54517 states and 81014 transitions. [2019-10-02 13:34:18,574 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-02 13:34:18,574 INFO L276 IsEmpty]: Start isEmpty. Operand 54517 states and 81014 transitions. [2019-10-02 13:34:18,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2019-10-02 13:34:18,689 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:34:18,690 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:34:18,690 INFO L418 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:34:18,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:34:18,691 INFO L82 PathProgramCache]: Analyzing trace with hash 2027134475, now seen corresponding path program 1 times [2019-10-02 13:34:18,691 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:34:18,691 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:34:18,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:34:18,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:34:18,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:34:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:34:19,514 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 29 proven. 4 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2019-10-02 13:34:19,515 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:34:19,515 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 13:34:19,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:34:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:34:20,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 3799 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:34:20,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:34:20,583 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2019-10-02 13:34:20,603 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:34:20,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [18] total 25 [2019-10-02 13:34:20,608 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-02 13:34:20,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-02 13:34:20,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=547, Unknown=0, NotChecked=0, Total=600 [2019-10-02 13:34:20,609 INFO L87 Difference]: Start difference. First operand 54517 states and 81014 transitions. Second operand 25 states. [2019-10-02 13:34:26,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:34:26,562 INFO L93 Difference]: Finished difference Result 116811 states and 181898 transitions. [2019-10-02 13:34:26,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-02 13:34:26,562 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 348 [2019-10-02 13:34:26,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:34:26,900 INFO L225 Difference]: With dead ends: 116811 [2019-10-02 13:34:26,900 INFO L226 Difference]: Without dead ends: 57219 [2019-10-02 13:34:27,128 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=2090, Unknown=0, NotChecked=0, Total=2256 [2019-10-02 13:34:27,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57219 states. [2019-10-02 13:34:31,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57219 to 55299. [2019-10-02 13:34:31,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55299 states. [2019-10-02 13:34:31,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55299 states to 55299 states and 81909 transitions. [2019-10-02 13:34:31,915 INFO L78 Accepts]: Start accepts. Automaton has 55299 states and 81909 transitions. Word has length 348 [2019-10-02 13:34:31,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:34:31,916 INFO L475 AbstractCegarLoop]: Abstraction has 55299 states and 81909 transitions. [2019-10-02 13:34:31,916 INFO L476 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-02 13:34:31,916 INFO L276 IsEmpty]: Start isEmpty. Operand 55299 states and 81909 transitions. [2019-10-02 13:34:31,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2019-10-02 13:34:31,994 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:34:31,995 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:34:31,995 INFO L418 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:34:31,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:34:31,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1792493347, now seen corresponding path program 1 times [2019-10-02 13:34:31,995 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:34:31,996 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:34:31,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:34:31,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:34:31,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:34:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:34:32,254 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-02 13:34:32,254 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:34:32,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-02 13:34:32,255 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-02 13:34:32,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-02 13:34:32,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-02 13:34:32,256 INFO L87 Difference]: Start difference. First operand 55299 states and 81909 transitions. Second operand 9 states. [2019-10-02 13:34:46,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:34:46,039 INFO L93 Difference]: Finished difference Result 239526 states and 436951 transitions. [2019-10-02 13:34:46,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-02 13:34:46,040 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 346 [2019-10-02 13:34:46,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:34:47,197 INFO L225 Difference]: With dead ends: 239526 [2019-10-02 13:34:47,197 INFO L226 Difference]: Without dead ends: 189461 [2019-10-02 13:34:47,435 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2019-10-02 13:34:47,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189461 states. [2019-10-02 13:34:58,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189461 to 181175. [2019-10-02 13:34:58,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181175 states. [2019-10-02 13:34:59,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181175 states to 181175 states and 331386 transitions. [2019-10-02 13:34:59,754 INFO L78 Accepts]: Start accepts. Automaton has 181175 states and 331386 transitions. Word has length 346 [2019-10-02 13:34:59,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:34:59,755 INFO L475 AbstractCegarLoop]: Abstraction has 181175 states and 331386 transitions. [2019-10-02 13:34:59,755 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-02 13:34:59,756 INFO L276 IsEmpty]: Start isEmpty. Operand 181175 states and 331386 transitions. [2019-10-02 13:35:00,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2019-10-02 13:35:00,014 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:35:00,014 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:35:00,014 INFO L418 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:35:00,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:35:00,015 INFO L82 PathProgramCache]: Analyzing trace with hash 322774291, now seen corresponding path program 1 times [2019-10-02 13:35:00,015 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:35:00,015 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:35:00,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:35:00,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:35:00,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:35:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:35:05,241 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-02 13:35:05,242 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:35:05,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-02 13:35:05,243 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-02 13:35:05,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-02 13:35:05,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2019-10-02 13:35:05,244 INFO L87 Difference]: Start difference. First operand 181175 states and 331386 transitions. Second operand 26 states. [2019-10-02 13:35:16,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:35:16,014 INFO L93 Difference]: Finished difference Result 396696 states and 867563 transitions. [2019-10-02 13:35:16,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-10-02 13:35:16,015 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 348 [2019-10-02 13:35:16,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:35:17,135 INFO L225 Difference]: With dead ends: 396696 [2019-10-02 13:35:17,135 INFO L226 Difference]: Without dead ends: 197185 [2019-10-02 13:35:17,780 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=1239, Unknown=0, NotChecked=0, Total=1332 [2019-10-02 13:35:17,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197185 states. [2019-10-02 13:35:40,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197185 to 189557. [2019-10-02 13:35:40,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189557 states. [2019-10-02 13:35:41,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189557 states to 189557 states and 331086 transitions. [2019-10-02 13:35:41,361 INFO L78 Accepts]: Start accepts. Automaton has 189557 states and 331086 transitions. Word has length 348 [2019-10-02 13:35:41,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:35:41,362 INFO L475 AbstractCegarLoop]: Abstraction has 189557 states and 331086 transitions. [2019-10-02 13:35:41,362 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-02 13:35:41,363 INFO L276 IsEmpty]: Start isEmpty. Operand 189557 states and 331086 transitions. [2019-10-02 13:35:41,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2019-10-02 13:35:41,580 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:35:41,581 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:35:41,581 INFO L418 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:35:41,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:35:41,581 INFO L82 PathProgramCache]: Analyzing trace with hash -2002324161, now seen corresponding path program 1 times [2019-10-02 13:35:41,582 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:35:41,582 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:35:41,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:35:41,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:35:41,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:35:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:35:41,837 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-10-02 13:35:41,838 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:35:41,838 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-02 13:35:41,838 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-02 13:35:41,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-02 13:35:41,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-02 13:35:41,839 INFO L87 Difference]: Start difference. First operand 189557 states and 331086 transitions. Second operand 10 states. [2019-10-02 13:35:51,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:35:51,739 INFO L93 Difference]: Finished difference Result 373964 states and 694651 transitions. [2019-10-02 13:35:51,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-02 13:35:51,739 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 352 [2019-10-02 13:35:51,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:35:52,696 INFO L225 Difference]: With dead ends: 373964 [2019-10-02 13:35:52,696 INFO L226 Difference]: Without dead ends: 195557 [2019-10-02 13:36:01,264 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-02 13:36:01,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195557 states. [2019-10-02 13:36:09,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195557 to 190729. [2019-10-02 13:36:09,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190729 states. [2019-10-02 13:36:10,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190729 states to 190729 states and 332417 transitions. [2019-10-02 13:36:11,006 INFO L78 Accepts]: Start accepts. Automaton has 190729 states and 332417 transitions. Word has length 352 [2019-10-02 13:36:11,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:36:11,007 INFO L475 AbstractCegarLoop]: Abstraction has 190729 states and 332417 transitions. [2019-10-02 13:36:11,007 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-02 13:36:11,007 INFO L276 IsEmpty]: Start isEmpty. Operand 190729 states and 332417 transitions. [2019-10-02 13:36:11,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2019-10-02 13:36:11,200 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:36:11,200 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:36:11,200 INFO L418 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:36:11,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:36:11,200 INFO L82 PathProgramCache]: Analyzing trace with hash 353879411, now seen corresponding path program 1 times [2019-10-02 13:36:11,201 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:36:11,201 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:36:11,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:36:11,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:36:11,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:36:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:36:12,365 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-10-02 13:36:12,365 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:36:12,365 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 13:36:12,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:36:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:36:13,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 3878 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:36:13,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:36:13,241 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2019-10-02 13:36:13,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:36:13,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2019-10-02 13:36:13,259 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-02 13:36:13,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-02 13:36:13,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-10-02 13:36:13,260 INFO L87 Difference]: Start difference. First operand 190729 states and 332417 transitions. Second operand 14 states. [2019-10-02 13:36:49,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:36:49,127 INFO L93 Difference]: Finished difference Result 668751 states and 1224660 transitions. [2019-10-02 13:36:49,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-02 13:36:49,127 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 370 [2019-10-02 13:36:49,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:36:52,256 INFO L225 Difference]: With dead ends: 668751 [2019-10-02 13:36:52,257 INFO L226 Difference]: Without dead ends: 477735 [2019-10-02 13:36:52,900 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2019-10-02 13:36:53,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477735 states. [2019-10-02 13:37:28,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477735 to 456777. [2019-10-02 13:37:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456777 states. [2019-10-02 13:37:44,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456777 states to 456777 states and 821596 transitions. [2019-10-02 13:37:44,513 INFO L78 Accepts]: Start accepts. Automaton has 456777 states and 821596 transitions. Word has length 370 [2019-10-02 13:37:44,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:37:44,513 INFO L475 AbstractCegarLoop]: Abstraction has 456777 states and 821596 transitions. [2019-10-02 13:37:44,513 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-02 13:37:44,513 INFO L276 IsEmpty]: Start isEmpty. Operand 456777 states and 821596 transitions. [2019-10-02 13:37:47,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2019-10-02 13:37:47,140 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:37:47,141 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:37:47,141 INFO L418 AbstractCegarLoop]: === Iteration 20 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:37:47,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:37:47,141 INFO L82 PathProgramCache]: Analyzing trace with hash -570800423, now seen corresponding path program 1 times [2019-10-02 13:37:47,141 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:37:47,141 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:37:47,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:37:47,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:37:47,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:37:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:37:47,497 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 29 proven. 14 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2019-10-02 13:37:47,497 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:37:47,498 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 13:37:47,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:37:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:37:48,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 3833 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:37:48,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:37:48,405 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2019-10-02 13:37:48,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:37:48,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 23 [2019-10-02 13:37:48,416 INFO L454 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-02 13:37:48,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-02 13:37:48,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2019-10-02 13:37:48,417 INFO L87 Difference]: Start difference. First operand 456777 states and 821596 transitions. Second operand 23 states. [2019-10-02 13:39:01,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:39:01,971 INFO L93 Difference]: Finished difference Result 966263 states and 1831257 transitions. [2019-10-02 13:39:01,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2019-10-02 13:39:01,972 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 361 [2019-10-02 13:39:01,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:39:05,659 INFO L225 Difference]: With dead ends: 966263 [2019-10-02 13:39:05,660 INFO L226 Difference]: Without dead ends: 432750 [2019-10-02 13:39:21,748 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9565 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1916, Invalid=24816, Unknown=0, NotChecked=0, Total=26732 [2019-10-02 13:39:22,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432750 states. [2019-10-02 13:39:52,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432750 to 363979. [2019-10-02 13:39:52,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363979 states. [2019-10-02 13:39:55,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363979 states to 363979 states and 668396 transitions. [2019-10-02 13:39:55,945 INFO L78 Accepts]: Start accepts. Automaton has 363979 states and 668396 transitions. Word has length 361 [2019-10-02 13:39:55,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:39:55,945 INFO L475 AbstractCegarLoop]: Abstraction has 363979 states and 668396 transitions. [2019-10-02 13:39:55,945 INFO L476 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-02 13:39:55,945 INFO L276 IsEmpty]: Start isEmpty. Operand 363979 states and 668396 transitions. [2019-10-02 13:39:58,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2019-10-02 13:39:58,056 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:39:58,057 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:39:58,057 INFO L418 AbstractCegarLoop]: === Iteration 21 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:39:58,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:39:58,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1380254586, now seen corresponding path program 1 times [2019-10-02 13:39:58,058 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:39:58,058 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:39:58,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:58,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:39:58,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:39:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:39:58,482 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 29 proven. 14 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2019-10-02 13:39:58,482 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:39:58,482 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:39:58,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:39:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:39:59,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 3835 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-02 13:39:59,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:39:59,309 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2019-10-02 13:39:59,323 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 13:39:59,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 4] total 20 [2019-10-02 13:39:59,325 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-02 13:39:59,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-02 13:39:59,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=342, Unknown=0, NotChecked=0, Total=380 [2019-10-02 13:39:59,328 INFO L87 Difference]: Start difference. First operand 363979 states and 668396 transitions. Second operand 20 states. [2019-10-02 13:41:20,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:41:20,529 INFO L93 Difference]: Finished difference Result 1047951 states and 2028206 transitions. [2019-10-02 13:41:20,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2019-10-02 13:41:20,530 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 362 [2019-10-02 13:41:20,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:41:37,527 INFO L225 Difference]: With dead ends: 1047951 [2019-10-02 13:41:37,527 INFO L226 Difference]: Without dead ends: 575479 [2019-10-02 13:41:39,348 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8069 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1330, Invalid=20722, Unknown=0, NotChecked=0, Total=22052 [2019-10-02 13:41:39,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575479 states. [2019-10-02 13:42:14,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575479 to 471667. [2019-10-02 13:42:14,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471667 states. [2019-10-02 13:42:37,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471667 states to 471667 states and 870578 transitions. [2019-10-02 13:42:37,839 INFO L78 Accepts]: Start accepts. Automaton has 471667 states and 870578 transitions. Word has length 362 [2019-10-02 13:42:37,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:42:37,840 INFO L475 AbstractCegarLoop]: Abstraction has 471667 states and 870578 transitions. [2019-10-02 13:42:37,840 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-02 13:42:37,840 INFO L276 IsEmpty]: Start isEmpty. Operand 471667 states and 870578 transitions. [2019-10-02 13:42:38,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2019-10-02 13:42:38,194 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:42:38,194 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:42:38,195 INFO L418 AbstractCegarLoop]: === Iteration 22 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:42:38,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:42:38,195 INFO L82 PathProgramCache]: Analyzing trace with hash -856175515, now seen corresponding path program 1 times [2019-10-02 13:42:38,195 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:42:38,195 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:42:38,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:42:38,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:42:38,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:42:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:42:38,458 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-10-02 13:42:38,459 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:42:38,459 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:42:38,460 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:42:38,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:42:38,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:42:38,461 INFO L87 Difference]: Start difference. First operand 471667 states and 870578 transitions. Second operand 3 states.