java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 13:44:21,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 13:44:21,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 13:44:21,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 13:44:21,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 13:44:21,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 13:44:21,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 13:44:21,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 13:44:21,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 13:44:21,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 13:44:21,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 13:44:21,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 13:44:21,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 13:44:21,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 13:44:21,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 13:44:21,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 13:44:21,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 13:44:21,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 13:44:21,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 13:44:21,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 13:44:21,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 13:44:21,688 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 13:44:21,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 13:44:21,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 13:44:21,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 13:44:21,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 13:44:21,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 13:44:21,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 13:44:21,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 13:44:21,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 13:44:21,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 13:44:21,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 13:44:21,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 13:44:21,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 13:44:21,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 13:44:21,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 13:44:21,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 13:44:21,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 13:44:21,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 13:44:21,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 13:44:21,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 13:44:21,702 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 13:44:21,717 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 13:44:21,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 13:44:21,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 13:44:21,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 13:44:21,722 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 13:44:21,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 13:44:21,723 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 13:44:21,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 13:44:21,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 13:44:21,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 13:44:21,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 13:44:21,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 13:44:21,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 13:44:21,724 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 13:44:21,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 13:44:21,724 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 13:44:21,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 13:44:21,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 13:44:21,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 13:44:21,726 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 13:44:21,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 13:44:21,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 13:44:21,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 13:44:21,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 13:44:21,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 13:44:21,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 13:44:21,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 13:44:21,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 13:44:21,728 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 13:44:21,775 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 13:44:21,791 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 13:44:21,795 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 13:44:21,802 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 13:44:21,803 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 13:44:21,804 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product32.cil.c [2019-10-02 13:44:21,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05a70bc72/8dcc3721160343e0834eafb128bfe195/FLAG8d470f35f [2019-10-02 13:44:22,485 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 13:44:22,486 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product32.cil.c [2019-10-02 13:44:22,520 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05a70bc72/8dcc3721160343e0834eafb128bfe195/FLAG8d470f35f [2019-10-02 13:44:22,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05a70bc72/8dcc3721160343e0834eafb128bfe195 [2019-10-02 13:44:22,649 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 13:44:22,651 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 13:44:22,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 13:44:22,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 13:44:22,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 13:44:22,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:44:22" (1/1) ... [2019-10-02 13:44:22,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d32cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:22, skipping insertion in model container [2019-10-02 13:44:22,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:44:22" (1/1) ... [2019-10-02 13:44:22,665 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 13:44:22,740 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 13:44:23,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:44:23,562 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 13:44:23,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:44:23,831 INFO L192 MainTranslator]: Completed translation [2019-10-02 13:44:23,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:23 WrapperNode [2019-10-02 13:44:23,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 13:44:23,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 13:44:23,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 13:44:23,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 13:44:23,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:23" (1/1) ... [2019-10-02 13:44:23,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:23" (1/1) ... [2019-10-02 13:44:23,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:23" (1/1) ... [2019-10-02 13:44:23,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:23" (1/1) ... [2019-10-02 13:44:23,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:23" (1/1) ... [2019-10-02 13:44:24,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:23" (1/1) ... [2019-10-02 13:44:24,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:23" (1/1) ... [2019-10-02 13:44:24,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 13:44:24,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 13:44:24,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 13:44:24,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 13:44:24,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:23" (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 13:44:24,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 13:44:24,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 13:44:24,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-02 13:44:24,114 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-02 13:44:24,114 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-02 13:44:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-02 13:44:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-02 13:44:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-02 13:44:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-02 13:44:24,116 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-02 13:44:24,116 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-02 13:44:24,116 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-02 13:44:24,116 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-02 13:44:24,116 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-02 13:44:24,117 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-02 13:44:24,117 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-02 13:44:24,117 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-02 13:44:24,117 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-02 13:44:24,118 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-02 13:44:24,118 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-02 13:44:24,118 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-02 13:44:24,118 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-02 13:44:24,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-02 13:44:24,119 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-02 13:44:24,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-02 13:44:24,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-02 13:44:24,119 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-02 13:44:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-02 13:44:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-02 13:44:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-02 13:44:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-02 13:44:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-02 13:44:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-02 13:44:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-02 13:44:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-02 13:44:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-02 13:44:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-02 13:44:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-02 13:44:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-02 13:44:24,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-02 13:44:24,122 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-02 13:44:24,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-02 13:44:24,122 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-02 13:44:24,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-02 13:44:24,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-02 13:44:24,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-02 13:44:24,123 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-02 13:44:24,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-02 13:44:24,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-02 13:44:24,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-02 13:44:24,123 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-02 13:44:24,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-02 13:44:24,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-02 13:44:24,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-02 13:44:24,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-02 13:44:24,124 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-02 13:44:24,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-02 13:44:24,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-02 13:44:24,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-02 13:44:24,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-02 13:44:24,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-02 13:44:24,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-02 13:44:24,125 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-02 13:44:24,125 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-02 13:44:24,125 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-02 13:44:24,126 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-02 13:44:24,126 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-02 13:44:24,126 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-02 13:44:24,126 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-02 13:44:24,126 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-02 13:44:24,126 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-02 13:44:24,127 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-02 13:44:24,127 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-02 13:44:24,127 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-02 13:44:24,127 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-02 13:44:24,127 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-02 13:44:24,127 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-02 13:44:24,127 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-02 13:44:24,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-02 13:44:24,128 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-02 13:44:24,128 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-02 13:44:24,128 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-02 13:44:24,128 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-02 13:44:24,128 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-02 13:44:24,129 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-02 13:44:24,129 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-02 13:44:24,129 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-02 13:44:24,129 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-02 13:44:24,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-02 13:44:24,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-02 13:44:24,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-02 13:44:24,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-02 13:44:24,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-02 13:44:24,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-02 13:44:24,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-02 13:44:24,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-02 13:44:24,130 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-02 13:44:24,131 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-02 13:44:24,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-02 13:44:24,131 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 13:44:24,131 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-02 13:44:24,131 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-02 13:44:24,131 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-02 13:44:24,131 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-02 13:44:24,132 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-02 13:44:24,132 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-02 13:44:24,132 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-02 13:44:24,132 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-02 13:44:24,132 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-02 13:44:24,132 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-02 13:44:24,132 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-02 13:44:24,133 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-02 13:44:24,133 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-02 13:44:24,133 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-02 13:44:24,133 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-02 13:44:24,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-02 13:44:24,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-02 13:44:24,133 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-02 13:44:24,134 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-02 13:44:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 13:44:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 13:44:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-02 13:44:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-02 13:44:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-02 13:44:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-02 13:44:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-02 13:44:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-02 13:44:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-02 13:44:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-02 13:44:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-02 13:44:24,136 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-02 13:44:24,136 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-02 13:44:24,136 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-02 13:44:24,136 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-02 13:44:24,136 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-02 13:44:24,136 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-02 13:44:24,136 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-02 13:44:24,137 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-02 13:44:24,137 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-02 13:44:24,137 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-02 13:44:24,137 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-02 13:44:24,137 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-02 13:44:24,137 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-02 13:44:24,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-02 13:44:24,138 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-02 13:44:24,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-02 13:44:24,138 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-02 13:44:24,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-02 13:44:24,138 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-02 13:44:24,139 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-02 13:44:24,139 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-02 13:44:24,139 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-02 13:44:24,139 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-02 13:44:24,139 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-02 13:44:24,139 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-02 13:44:24,139 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-02 13:44:24,140 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-02 13:44:24,140 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-02 13:44:24,140 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-02 13:44:24,140 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-02 13:44:24,140 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-02 13:44:24,140 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-02 13:44:24,140 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-02 13:44:24,140 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-02 13:44:24,141 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-02 13:44:24,141 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-02 13:44:24,141 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-02 13:44:24,141 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-02 13:44:24,141 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-02 13:44:24,141 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-02 13:44:24,142 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-02 13:44:24,142 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-02 13:44:24,142 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-02 13:44:24,142 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-02 13:44:24,142 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-02 13:44:24,142 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-02 13:44:24,142 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-02 13:44:24,142 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-02 13:44:24,143 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-02 13:44:24,143 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-02 13:44:24,143 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-02 13:44:24,143 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-02 13:44:24,143 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-02 13:44:24,143 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-02 13:44:24,143 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-02 13:44:24,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 13:44:24,144 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-02 13:44:24,144 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 13:44:24,144 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 13:44:24,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-02 13:44:24,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 13:44:24,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 13:44:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 13:44:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 13:44:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-02 13:44:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 13:44:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-02 13:44:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-02 13:44:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 13:44:24,146 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-02 13:44:24,146 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-02 13:44:24,146 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-02 13:44:24,146 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-02 13:44:24,146 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-02 13:44:24,146 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-02 13:44:24,147 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-02 13:44:24,147 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-02 13:44:24,147 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-02 13:44:24,147 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-02 13:44:24,147 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-02 13:44:24,147 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-02 13:44:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-02 13:44:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-02 13:44:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-02 13:44:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-02 13:44:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-02 13:44:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-02 13:44:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-02 13:44:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-02 13:44:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-02 13:44:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-02 13:44:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-02 13:44:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-02 13:44:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-02 13:44:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-02 13:44:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-02 13:44:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-02 13:44:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-02 13:44:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-02 13:44:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-02 13:44:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-02 13:44:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-02 13:44:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-02 13:44:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-02 13:44:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-02 13:44:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-02 13:44:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-02 13:44:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-02 13:44:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 13:44:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-02 13:44:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-02 13:44:24,153 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-02 13:44:24,153 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-02 13:44:24,153 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-02 13:44:24,153 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-02 13:44:24,153 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-02 13:44:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-02 13:44:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-02 13:44:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-02 13:44:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-02 13:44:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 13:44:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 13:44:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 13:44:26,396 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 13:44:26,396 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-02 13:44:26,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:44:26 BoogieIcfgContainer [2019-10-02 13:44:26,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 13:44:26,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 13:44:26,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 13:44:26,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 13:44:26,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 01:44:22" (1/3) ... [2019-10-02 13:44:26,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b5932b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:44:26, skipping insertion in model container [2019-10-02 13:44:26,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:23" (2/3) ... [2019-10-02 13:44:26,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b5932b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:44:26, skipping insertion in model container [2019-10-02 13:44:26,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:44:26" (3/3) ... [2019-10-02 13:44:26,409 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product32.cil.c [2019-10-02 13:44:26,420 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 13:44:26,432 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 13:44:26,454 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 13:44:26,502 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 13:44:26,503 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 13:44:26,503 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 13:44:26,512 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 13:44:26,513 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 13:44:26,513 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 13:44:26,513 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 13:44:26,514 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 13:44:26,514 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 13:44:26,559 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states. [2019-10-02 13:44:26,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-02 13:44:26,599 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:26,602 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:26,605 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:26,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:26,611 INFO L82 PathProgramCache]: Analyzing trace with hash -165883843, now seen corresponding path program 1 times [2019-10-02 13:44:26,614 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:26,614 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:26,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:26,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:26,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:27,441 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:44:27,443 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:27,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 13:44:27,448 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 13:44:27,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 13:44:27,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 13:44:27,466 INFO L87 Difference]: Start difference. First operand 645 states. Second operand 2 states. [2019-10-02 13:44:27,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:27,592 INFO L93 Difference]: Finished difference Result 920 states and 1248 transitions. [2019-10-02 13:44:27,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 13:44:27,594 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 198 [2019-10-02 13:44:27,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:27,634 INFO L225 Difference]: With dead ends: 920 [2019-10-02 13:44:27,635 INFO L226 Difference]: Without dead ends: 588 [2019-10-02 13:44:27,647 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 13:44:27,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2019-10-02 13:44:27,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 588. [2019-10-02 13:44:27,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 588 states. [2019-10-02 13:44:27,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 802 transitions. [2019-10-02 13:44:27,793 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 802 transitions. Word has length 198 [2019-10-02 13:44:27,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:27,797 INFO L475 AbstractCegarLoop]: Abstraction has 588 states and 802 transitions. [2019-10-02 13:44:27,798 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 13:44:27,798 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 802 transitions. [2019-10-02 13:44:27,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-02 13:44:27,807 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:27,808 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:27,808 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:27,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:27,809 INFO L82 PathProgramCache]: Analyzing trace with hash -450437304, now seen corresponding path program 1 times [2019-10-02 13:44:27,810 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:27,810 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:27,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:27,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:27,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:28,186 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:44:28,186 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:28,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:44:28,195 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:44:28,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:44:28,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:44:28,196 INFO L87 Difference]: Start difference. First operand 588 states and 802 transitions. Second operand 3 states. [2019-10-02 13:44:28,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:28,266 INFO L93 Difference]: Finished difference Result 903 states and 1212 transitions. [2019-10-02 13:44:28,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:44:28,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-02 13:44:28,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:28,272 INFO L225 Difference]: With dead ends: 903 [2019-10-02 13:44:28,272 INFO L226 Difference]: Without dead ends: 591 [2019-10-02 13:44:28,274 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 13:44:28,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2019-10-02 13:44:28,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 590. [2019-10-02 13:44:28,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2019-10-02 13:44:28,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 804 transitions. [2019-10-02 13:44:28,307 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 804 transitions. Word has length 199 [2019-10-02 13:44:28,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:28,309 INFO L475 AbstractCegarLoop]: Abstraction has 590 states and 804 transitions. [2019-10-02 13:44:28,309 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:44:28,309 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 804 transitions. [2019-10-02 13:44:28,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-02 13:44:28,315 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:28,315 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:28,315 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:28,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:28,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1838348472, now seen corresponding path program 1 times [2019-10-02 13:44:28,316 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:28,316 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:28,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:28,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:28,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:28,575 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:44:28,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:28,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:44:28,577 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:44:28,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:44:28,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:44:28,579 INFO L87 Difference]: Start difference. First operand 590 states and 804 transitions. Second operand 3 states. [2019-10-02 13:44:28,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:28,624 INFO L93 Difference]: Finished difference Result 1158 states and 1609 transitions. [2019-10-02 13:44:28,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:44:28,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 209 [2019-10-02 13:44:28,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:28,633 INFO L225 Difference]: With dead ends: 1158 [2019-10-02 13:44:28,634 INFO L226 Difference]: Without dead ends: 633 [2019-10-02 13:44:28,636 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 13:44:28,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2019-10-02 13:44:28,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 632. [2019-10-02 13:44:28,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2019-10-02 13:44:28,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 876 transitions. [2019-10-02 13:44:28,685 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 876 transitions. Word has length 209 [2019-10-02 13:44:28,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:28,687 INFO L475 AbstractCegarLoop]: Abstraction has 632 states and 876 transitions. [2019-10-02 13:44:28,687 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:44:28,687 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 876 transitions. [2019-10-02 13:44:28,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-02 13:44:28,694 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:28,694 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:28,694 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:28,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:28,695 INFO L82 PathProgramCache]: Analyzing trace with hash -62389329, now seen corresponding path program 1 times [2019-10-02 13:44:28,695 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:28,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:28,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:28,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:28,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:28,871 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:44:28,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:28,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:44:28,873 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:44:28,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:44:28,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:44:28,874 INFO L87 Difference]: Start difference. First operand 632 states and 876 transitions. Second operand 3 states. [2019-10-02 13:44:28,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:28,916 INFO L93 Difference]: Finished difference Result 1281 states and 1820 transitions. [2019-10-02 13:44:28,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:44:28,916 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2019-10-02 13:44:28,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:28,922 INFO L225 Difference]: With dead ends: 1281 [2019-10-02 13:44:28,922 INFO L226 Difference]: Without dead ends: 714 [2019-10-02 13:44:28,925 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 13:44:28,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2019-10-02 13:44:28,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 713. [2019-10-02 13:44:28,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2019-10-02 13:44:28,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1014 transitions. [2019-10-02 13:44:28,965 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1014 transitions. Word has length 210 [2019-10-02 13:44:28,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:28,966 INFO L475 AbstractCegarLoop]: Abstraction has 713 states and 1014 transitions. [2019-10-02 13:44:28,966 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:44:28,967 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1014 transitions. [2019-10-02 13:44:28,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-02 13:44:28,974 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:28,974 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:28,975 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:28,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:28,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1544795448, now seen corresponding path program 1 times [2019-10-02 13:44:28,976 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:28,976 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:28,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:28,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:28,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:29,258 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:44:29,259 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:29,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:44:29,260 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:44:29,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:44:29,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:44:29,261 INFO L87 Difference]: Start difference. First operand 713 states and 1014 transitions. Second operand 3 states. [2019-10-02 13:44:29,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:29,307 INFO L93 Difference]: Finished difference Result 1518 states and 2224 transitions. [2019-10-02 13:44:29,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:44:29,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2019-10-02 13:44:29,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:29,315 INFO L225 Difference]: With dead ends: 1518 [2019-10-02 13:44:29,315 INFO L226 Difference]: Without dead ends: 870 [2019-10-02 13:44:29,319 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 13:44:29,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2019-10-02 13:44:29,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 869. [2019-10-02 13:44:29,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2019-10-02 13:44:29,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1278 transitions. [2019-10-02 13:44:29,362 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1278 transitions. Word has length 211 [2019-10-02 13:44:29,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:29,362 INFO L475 AbstractCegarLoop]: Abstraction has 869 states and 1278 transitions. [2019-10-02 13:44:29,362 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:44:29,362 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1278 transitions. [2019-10-02 13:44:29,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-02 13:44:29,368 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:29,368 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:29,369 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:29,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:29,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1683184849, now seen corresponding path program 1 times [2019-10-02 13:44:29,369 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:29,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:29,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:29,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:29,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:29,555 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:44:29,556 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:29,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:44:29,557 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:44:29,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:44:29,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:44:29,557 INFO L87 Difference]: Start difference. First operand 869 states and 1278 transitions. Second operand 3 states. [2019-10-02 13:44:29,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:29,607 INFO L93 Difference]: Finished difference Result 1974 states and 2996 transitions. [2019-10-02 13:44:29,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:44:29,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2019-10-02 13:44:29,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:29,616 INFO L225 Difference]: With dead ends: 1974 [2019-10-02 13:44:29,616 INFO L226 Difference]: Without dead ends: 1170 [2019-10-02 13:44:29,619 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 13:44:29,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2019-10-02 13:44:29,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1169. [2019-10-02 13:44:29,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1169 states. [2019-10-02 13:44:29,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1782 transitions. [2019-10-02 13:44:29,738 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1782 transitions. Word has length 212 [2019-10-02 13:44:29,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:29,739 INFO L475 AbstractCegarLoop]: Abstraction has 1169 states and 1782 transitions. [2019-10-02 13:44:29,739 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:44:29,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1782 transitions. [2019-10-02 13:44:29,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2019-10-02 13:44:29,747 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:29,747 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:29,748 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:29,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:29,748 INFO L82 PathProgramCache]: Analyzing trace with hash 851882438, now seen corresponding path program 1 times [2019-10-02 13:44:29,748 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:29,749 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:29,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:29,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:29,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:30,045 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:44:30,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:30,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-02 13:44:30,047 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 13:44:30,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 13:44:30,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-02 13:44:30,048 INFO L87 Difference]: Start difference. First operand 1169 states and 1782 transitions. Second operand 11 states. [2019-10-02 13:44:36,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:36,240 INFO L93 Difference]: Finished difference Result 3807 states and 5570 transitions. [2019-10-02 13:44:36,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-02 13:44:36,241 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 215 [2019-10-02 13:44:36,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:36,267 INFO L225 Difference]: With dead ends: 3807 [2019-10-02 13:44:36,267 INFO L226 Difference]: Without dead ends: 3508 [2019-10-02 13:44:36,272 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 13:44:36,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3508 states. [2019-10-02 13:44:36,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3508 to 3487. [2019-10-02 13:44:36,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3487 states. [2019-10-02 13:44:36,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3487 states to 3487 states and 5006 transitions. [2019-10-02 13:44:36,456 INFO L78 Accepts]: Start accepts. Automaton has 3487 states and 5006 transitions. Word has length 215 [2019-10-02 13:44:36,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:36,457 INFO L475 AbstractCegarLoop]: Abstraction has 3487 states and 5006 transitions. [2019-10-02 13:44:36,458 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 13:44:36,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3487 states and 5006 transitions. [2019-10-02 13:44:36,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-02 13:44:36,467 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:36,467 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:36,468 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:36,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:36,468 INFO L82 PathProgramCache]: Analyzing trace with hash -766411813, now seen corresponding path program 1 times [2019-10-02 13:44:36,468 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:36,469 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:36,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:36,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:36,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:36,921 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:44:36,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:36,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-10-02 13:44:36,923 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-02 13:44:36,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-02 13:44:36,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-10-02 13:44:36,924 INFO L87 Difference]: Start difference. First operand 3487 states and 5006 transitions. Second operand 20 states. [2019-10-02 13:44:37,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:37,593 INFO L93 Difference]: Finished difference Result 6068 states and 8719 transitions. [2019-10-02 13:44:37,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-02 13:44:37,594 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 216 [2019-10-02 13:44:37,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:37,628 INFO L225 Difference]: With dead ends: 6068 [2019-10-02 13:44:37,628 INFO L226 Difference]: Without dead ends: 3433 [2019-10-02 13:44:37,646 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 13:44:37,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3433 states. [2019-10-02 13:44:37,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3433 to 3431. [2019-10-02 13:44:37,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3431 states. [2019-10-02 13:44:37,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3431 states to 3431 states and 4920 transitions. [2019-10-02 13:44:37,812 INFO L78 Accepts]: Start accepts. Automaton has 3431 states and 4920 transitions. Word has length 216 [2019-10-02 13:44:37,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:37,813 INFO L475 AbstractCegarLoop]: Abstraction has 3431 states and 4920 transitions. [2019-10-02 13:44:37,813 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-02 13:44:37,813 INFO L276 IsEmpty]: Start isEmpty. Operand 3431 states and 4920 transitions. [2019-10-02 13:44:37,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-02 13:44:37,822 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:37,823 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:37,823 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:37,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:37,824 INFO L82 PathProgramCache]: Analyzing trace with hash -840508066, now seen corresponding path program 1 times [2019-10-02 13:44:37,824 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:37,824 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:37,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:37,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:37,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:38,104 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:44:38,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:38,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 13:44:38,107 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 13:44:38,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 13:44:38,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-02 13:44:38,108 INFO L87 Difference]: Start difference. First operand 3431 states and 4920 transitions. Second operand 6 states. [2019-10-02 13:44:38,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:38,890 INFO L93 Difference]: Finished difference Result 9461 states and 13678 transitions. [2019-10-02 13:44:38,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 13:44:38,891 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2019-10-02 13:44:38,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:38,939 INFO L225 Difference]: With dead ends: 9461 [2019-10-02 13:44:38,940 INFO L226 Difference]: Without dead ends: 6949 [2019-10-02 13:44:38,953 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-02 13:44:38,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6949 states. [2019-10-02 13:44:39,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6949 to 6878. [2019-10-02 13:44:39,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6878 states. [2019-10-02 13:44:39,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6878 states to 6878 states and 10018 transitions. [2019-10-02 13:44:39,267 INFO L78 Accepts]: Start accepts. Automaton has 6878 states and 10018 transitions. Word has length 225 [2019-10-02 13:44:39,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:39,268 INFO L475 AbstractCegarLoop]: Abstraction has 6878 states and 10018 transitions. [2019-10-02 13:44:39,268 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 13:44:39,268 INFO L276 IsEmpty]: Start isEmpty. Operand 6878 states and 10018 transitions. [2019-10-02 13:44:39,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-02 13:44:39,280 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:39,281 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:39,281 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:39,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:39,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1633314013, now seen corresponding path program 1 times [2019-10-02 13:44:39,282 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:39,282 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:39,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:39,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:39,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:39,463 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:44:39,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:39,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 13:44:39,464 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 13:44:39,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 13:44:39,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 13:44:39,465 INFO L87 Difference]: Start difference. First operand 6878 states and 10018 transitions. Second operand 5 states. [2019-10-02 13:44:41,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:41,137 INFO L93 Difference]: Finished difference Result 24031 states and 35587 transitions. [2019-10-02 13:44:41,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 13:44:41,138 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 226 [2019-10-02 13:44:41,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:41,276 INFO L225 Difference]: With dead ends: 24031 [2019-10-02 13:44:41,276 INFO L226 Difference]: Without dead ends: 18924 [2019-10-02 13:44:41,308 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-02 13:44:41,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18924 states. [2019-10-02 13:44:42,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18924 to 18828. [2019-10-02 13:44:42,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18828 states. [2019-10-02 13:44:42,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18828 states to 18828 states and 27803 transitions. [2019-10-02 13:44:42,736 INFO L78 Accepts]: Start accepts. Automaton has 18828 states and 27803 transitions. Word has length 226 [2019-10-02 13:44:42,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:42,738 INFO L475 AbstractCegarLoop]: Abstraction has 18828 states and 27803 transitions. [2019-10-02 13:44:42,738 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 13:44:42,738 INFO L276 IsEmpty]: Start isEmpty. Operand 18828 states and 27803 transitions. [2019-10-02 13:44:42,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-02 13:44:42,763 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:42,764 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:42,764 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:42,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:42,765 INFO L82 PathProgramCache]: Analyzing trace with hash 2074877164, now seen corresponding path program 1 times [2019-10-02 13:44:42,765 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:42,765 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:42,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:42,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:42,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:43,037 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:44:43,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:43,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-02 13:44:43,038 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-02 13:44:43,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-02 13:44:43,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-02 13:44:43,039 INFO L87 Difference]: Start difference. First operand 18828 states and 27803 transitions. Second operand 13 states. [2019-10-02 13:44:43,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:43,929 INFO L93 Difference]: Finished difference Result 34083 states and 49544 transitions. [2019-10-02 13:44:43,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-02 13:44:43,930 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 226 [2019-10-02 13:44:43,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:44,213 INFO L225 Difference]: With dead ends: 34083 [2019-10-02 13:44:44,213 INFO L226 Difference]: Without dead ends: 18752 [2019-10-02 13:44:44,267 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-02 13:44:44,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18752 states. [2019-10-02 13:44:44,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18752 to 18700. [2019-10-02 13:44:44,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18700 states. [2019-10-02 13:44:45,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18700 states to 18700 states and 27412 transitions. [2019-10-02 13:44:45,067 INFO L78 Accepts]: Start accepts. Automaton has 18700 states and 27412 transitions. Word has length 226 [2019-10-02 13:44:45,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:45,068 INFO L475 AbstractCegarLoop]: Abstraction has 18700 states and 27412 transitions. [2019-10-02 13:44:45,068 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-02 13:44:45,069 INFO L276 IsEmpty]: Start isEmpty. Operand 18700 states and 27412 transitions. [2019-10-02 13:44:45,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-02 13:44:45,100 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:45,100 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:45,100 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:45,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:45,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1721479641, now seen corresponding path program 1 times [2019-10-02 13:44:45,101 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:45,101 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:45,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:45,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:45,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:45,350 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:44:45,350 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:45,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:44:45,351 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:44:45,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:44:45,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:44:45,352 INFO L87 Difference]: Start difference. First operand 18700 states and 27412 transitions. Second operand 8 states. [2019-10-02 13:44:51,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:51,562 INFO L93 Difference]: Finished difference Result 56466 states and 85234 transitions. [2019-10-02 13:44:51,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 13:44:51,562 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 248 [2019-10-02 13:44:51,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:51,781 INFO L225 Difference]: With dead ends: 56466 [2019-10-02 13:44:51,782 INFO L226 Difference]: Without dead ends: 37831 [2019-10-02 13:44:51,843 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-02 13:44:51,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37831 states. [2019-10-02 13:44:53,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37831 to 22284. [2019-10-02 13:44:53,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22284 states. [2019-10-02 13:44:53,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22284 states to 22284 states and 34800 transitions. [2019-10-02 13:44:53,413 INFO L78 Accepts]: Start accepts. Automaton has 22284 states and 34800 transitions. Word has length 248 [2019-10-02 13:44:53,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:53,413 INFO L475 AbstractCegarLoop]: Abstraction has 22284 states and 34800 transitions. [2019-10-02 13:44:53,413 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:44:53,414 INFO L276 IsEmpty]: Start isEmpty. Operand 22284 states and 34800 transitions. [2019-10-02 13:44:53,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2019-10-02 13:44:53,476 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:53,476 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:53,477 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:53,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:53,477 INFO L82 PathProgramCache]: Analyzing trace with hash -513023094, now seen corresponding path program 1 times [2019-10-02 13:44:53,477 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:53,477 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:53,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:53,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:53,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:53,707 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-02 13:44:53,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:53,708 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:44:53,708 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:44:53,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:44:53,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:44:53,709 INFO L87 Difference]: Start difference. First operand 22284 states and 34800 transitions. Second operand 8 states. [2019-10-02 13:45:00,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:00,462 INFO L93 Difference]: Finished difference Result 67754 states and 110654 transitions. [2019-10-02 13:45:00,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 13:45:00,462 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 264 [2019-10-02 13:45:00,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:00,648 INFO L225 Difference]: With dead ends: 67754 [2019-10-02 13:45:00,648 INFO L226 Difference]: Without dead ends: 45535 [2019-10-02 13:45:00,713 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-02 13:45:00,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45535 states. [2019-10-02 13:45:02,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45535 to 29572. [2019-10-02 13:45:02,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29572 states. [2019-10-02 13:45:02,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29572 states to 29572 states and 50920 transitions. [2019-10-02 13:45:02,463 INFO L78 Accepts]: Start accepts. Automaton has 29572 states and 50920 transitions. Word has length 264 [2019-10-02 13:45:02,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:45:02,464 INFO L475 AbstractCegarLoop]: Abstraction has 29572 states and 50920 transitions. [2019-10-02 13:45:02,464 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:45:02,464 INFO L276 IsEmpty]: Start isEmpty. Operand 29572 states and 50920 transitions. [2019-10-02 13:45:02,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2019-10-02 13:45:02,579 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:45:02,580 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:45:02,580 INFO L418 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:45:02,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:45:02,580 INFO L82 PathProgramCache]: Analyzing trace with hash 382087442, now seen corresponding path program 1 times [2019-10-02 13:45:02,581 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:45:02,581 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:45:02,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:02,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:02,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:02,801 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-02 13:45:02,802 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:45:02,802 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:45:02,803 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:45:02,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:45:02,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:45:02,804 INFO L87 Difference]: Start difference. First operand 29572 states and 50920 transitions. Second operand 8 states. [2019-10-02 13:45:10,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:10,458 INFO L93 Difference]: Finished difference Result 90602 states and 165482 transitions. [2019-10-02 13:45:10,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 13:45:10,458 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 265 [2019-10-02 13:45:10,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:10,811 INFO L225 Difference]: With dead ends: 90602 [2019-10-02 13:45:10,811 INFO L226 Difference]: Without dead ends: 61095 [2019-10-02 13:45:10,995 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-02 13:45:11,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61095 states. [2019-10-02 13:45:14,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61095 to 44276. [2019-10-02 13:45:14,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44276 states. [2019-10-02 13:45:14,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44276 states to 44276 states and 85708 transitions. [2019-10-02 13:45:14,970 INFO L78 Accepts]: Start accepts. Automaton has 44276 states and 85708 transitions. Word has length 265 [2019-10-02 13:45:14,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:45:14,971 INFO L475 AbstractCegarLoop]: Abstraction has 44276 states and 85708 transitions. [2019-10-02 13:45:14,971 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:45:14,971 INFO L276 IsEmpty]: Start isEmpty. Operand 44276 states and 85708 transitions. [2019-10-02 13:45:15,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2019-10-02 13:45:15,127 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:45:15,128 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 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 13:45:15,128 INFO L418 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:45:15,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:45:15,128 INFO L82 PathProgramCache]: Analyzing trace with hash 899745554, now seen corresponding path program 1 times [2019-10-02 13:45:15,128 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:45:15,129 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:45:15,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:15,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:15,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:15,394 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-10-02 13:45:15,394 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:45:15,394 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-02 13:45:15,395 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 13:45:15,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 13:45:15,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-02 13:45:15,396 INFO L87 Difference]: Start difference. First operand 44276 states and 85708 transitions. Second operand 11 states. [2019-10-02 13:45:17,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:17,941 INFO L93 Difference]: Finished difference Result 71277 states and 126231 transitions. [2019-10-02 13:45:17,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-02 13:45:17,942 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 271 [2019-10-02 13:45:17,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:20,156 INFO L225 Difference]: With dead ends: 71277 [2019-10-02 13:45:20,157 INFO L226 Difference]: Without dead ends: 59584 [2019-10-02 13:45:20,211 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2019-10-02 13:45:20,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59584 states. [2019-10-02 13:45:22,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59584 to 58956. [2019-10-02 13:45:22,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58956 states. [2019-10-02 13:45:23,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58956 states to 58956 states and 108179 transitions. [2019-10-02 13:45:23,130 INFO L78 Accepts]: Start accepts. Automaton has 58956 states and 108179 transitions. Word has length 271 [2019-10-02 13:45:23,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:45:23,131 INFO L475 AbstractCegarLoop]: Abstraction has 58956 states and 108179 transitions. [2019-10-02 13:45:23,131 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 13:45:23,131 INFO L276 IsEmpty]: Start isEmpty. Operand 58956 states and 108179 transitions. [2019-10-02 13:45:23,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2019-10-02 13:45:23,261 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:45:23,261 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 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] [2019-10-02 13:45:23,261 INFO L418 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:45:23,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:45:23,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1967821822, now seen corresponding path program 1 times [2019-10-02 13:45:23,262 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:45:23,262 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:45:23,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:23,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:23,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:23,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:24,328 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-02 13:45:24,328 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:45:24,329 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 13:45:24,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:24,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 3490 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:45:25,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:45:25,473 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Stream Closed [2019-10-02 13:45:25,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:45:25,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [42] total 48 [2019-10-02 13:45:25,494 INFO L454 AbstractCegarLoop]: Interpolant automaton has 48 states [2019-10-02 13:45:25,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2019-10-02 13:45:25,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=2144, Unknown=0, NotChecked=0, Total=2256 [2019-10-02 13:45:25,495 INFO L87 Difference]: Start difference. First operand 58956 states and 108179 transitions. Second operand 48 states. [2019-10-02 13:45:35,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:35,662 INFO L93 Difference]: Finished difference Result 119299 states and 221342 transitions. [2019-10-02 13:45:35,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-02 13:45:35,662 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 272 [2019-10-02 13:45:35,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:36,139 INFO L225 Difference]: With dead ends: 119299 [2019-10-02 13:45:36,139 INFO L226 Difference]: Without dead ends: 60379 [2019-10-02 13:45:38,917 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 794 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=270, Invalid=5736, Unknown=0, NotChecked=0, Total=6006 [2019-10-02 13:45:38,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60379 states. [2019-10-02 13:45:44,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60379 to 59662. [2019-10-02 13:45:44,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59662 states. [2019-10-02 13:45:44,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59662 states to 59662 states and 108478 transitions. [2019-10-02 13:45:44,268 INFO L78 Accepts]: Start accepts. Automaton has 59662 states and 108478 transitions. Word has length 272 [2019-10-02 13:45:44,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:45:44,269 INFO L475 AbstractCegarLoop]: Abstraction has 59662 states and 108478 transitions. [2019-10-02 13:45:44,269 INFO L476 AbstractCegarLoop]: Interpolant automaton has 48 states. [2019-10-02 13:45:44,269 INFO L276 IsEmpty]: Start isEmpty. Operand 59662 states and 108478 transitions. [2019-10-02 13:45:44,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2019-10-02 13:45:44,402 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:45:44,402 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:45:44,403 INFO L418 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:45:44,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:45:44,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1896164552, now seen corresponding path program 1 times [2019-10-02 13:45:44,403 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:45:44,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:45:44,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:44,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:44,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:46,234 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-02 13:45:46,234 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:45:46,234 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 13:45:46,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:46,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 3438 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:45:46,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:45:47,335 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-02 13:45:47,347 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:45:47,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [56] total 63 [2019-10-02 13:45:47,349 INFO L454 AbstractCegarLoop]: Interpolant automaton has 63 states [2019-10-02 13:45:47,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2019-10-02 13:45:47,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=3764, Unknown=0, NotChecked=0, Total=3906 [2019-10-02 13:45:47,351 INFO L87 Difference]: Start difference. First operand 59662 states and 108478 transitions. Second operand 63 states. [2019-10-02 13:45:58,396 WARN L191 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2019-10-02 13:46:46,066 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2019-10-02 13:47:19,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:47:19,846 INFO L93 Difference]: Finished difference Result 579201 states and 1059621 transitions. [2019-10-02 13:47:19,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2019-10-02 13:47:19,846 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 260 [2019-10-02 13:47:19,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:47:22,834 INFO L225 Difference]: With dead ends: 579201 [2019-10-02 13:47:22,834 INFO L226 Difference]: Without dead ends: 519589 [2019-10-02 13:47:23,290 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 662 GetRequests, 303 SyntacticMatches, 2 SemanticMatches, 357 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45543 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=6389, Invalid=122133, Unknown=0, NotChecked=0, Total=128522 [2019-10-02 13:47:23,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519589 states. [2019-10-02 13:48:07,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519589 to 510320. [2019-10-02 13:48:07,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510320 states. [2019-10-02 13:48:10,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510320 states to 510320 states and 869046 transitions. [2019-10-02 13:48:10,988 INFO L78 Accepts]: Start accepts. Automaton has 510320 states and 869046 transitions. Word has length 260 [2019-10-02 13:48:10,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:48:10,988 INFO L475 AbstractCegarLoop]: Abstraction has 510320 states and 869046 transitions. [2019-10-02 13:48:10,989 INFO L476 AbstractCegarLoop]: Interpolant automaton has 63 states. [2019-10-02 13:48:10,989 INFO L276 IsEmpty]: Start isEmpty. Operand 510320 states and 869046 transitions. [2019-10-02 13:48:11,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2019-10-02 13:48:11,534 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:48:11,535 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:48:11,535 INFO L418 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:48:11,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:48:11,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1134051391, now seen corresponding path program 1 times [2019-10-02 13:48:11,535 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:48:11,535 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:48:11,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:48:11,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:48:11,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:48:11,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:48:11,753 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-10-02 13:48:11,753 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:48:11,753 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-02 13:48:11,754 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 13:48:11,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 13:48:11,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 13:48:11,755 INFO L87 Difference]: Start difference. First operand 510320 states and 869046 transitions. Second operand 7 states. [2019-10-02 13:49:26,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:49:26,770 INFO L93 Difference]: Finished difference Result 1313342 states and 2248129 transitions. [2019-10-02 13:49:26,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-02 13:49:26,770 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 278 [2019-10-02 13:49:26,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:49:32,174 INFO L225 Difference]: With dead ends: 1313342 [2019-10-02 13:49:32,175 INFO L226 Difference]: Without dead ends: 1026051 [2019-10-02 13:49:34,422 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-02 13:49:35,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026051 states.