/usr/bin/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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec7_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:54:35,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:54:35,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:54:35,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:54:35,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:54:35,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:54:35,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:54:35,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:54:35,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:54:35,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:54:35,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:54:35,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:54:35,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:54:35,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:54:35,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:54:35,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:54:35,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:54:35,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:54:35,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:54:35,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:54:35,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:54:35,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:54:35,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:54:35,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:54:35,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:54:35,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:54:35,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:54:35,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:54:35,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:54:35,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:54:35,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:54:35,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:54:35,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:54:35,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:54:35,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:54:35,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:54:35,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:54:35,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:54:35,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:54:35,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:54:35,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:54:35,877 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 [2019-11-07 00:54:35,904 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:54:35,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:54:35,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:54:35,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:54:35,914 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:54:35,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:54:35,914 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:54:35,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:54:35,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:54:35,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:54:35,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:54:35,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:54:35,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:54:35,918 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:54:35,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:54:35,919 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:54:35,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:54:35,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:54:35,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:54:35,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:54:35,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:54:35,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:54:35,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:54:35,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:54:35,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:54:35,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:54:35,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:54:35,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:54:35,921 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:54:36,221 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:54:36,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:54:36,238 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:54:36,239 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:54:36,240 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:54:36,240 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product32.cil.c [2019-11-07 00:54:36,300 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b23c9aa5c/8b769ea21a4c40c989a7eb5f53408fa3/FLAG50264300e [2019-11-07 00:54:36,956 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:54:36,957 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product32.cil.c [2019-11-07 00:54:36,986 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b23c9aa5c/8b769ea21a4c40c989a7eb5f53408fa3/FLAG50264300e [2019-11-07 00:54:37,134 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b23c9aa5c/8b769ea21a4c40c989a7eb5f53408fa3 [2019-11-07 00:54:37,142 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:54:37,144 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:54:37,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:54:37,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:54:37,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:54:37,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:37" (1/1) ... [2019-11-07 00:54:37,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74348c20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:37, skipping insertion in model container [2019-11-07 00:54:37,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:37" (1/1) ... [2019-11-07 00:54:37,163 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:54:37,250 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:54:37,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:54:38,016 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:54:38,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:54:38,341 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:54:38,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:38 WrapperNode [2019-11-07 00:54:38,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:54:38,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:54:38,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:54:38,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:54:38,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:38" (1/1) ... [2019-11-07 00:54:38,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:38" (1/1) ... [2019-11-07 00:54:38,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:38" (1/1) ... [2019-11-07 00:54:38,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:38" (1/1) ... [2019-11-07 00:54:38,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:38" (1/1) ... [2019-11-07 00:54:38,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:38" (1/1) ... [2019-11-07 00:54:38,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:38" (1/1) ... [2019-11-07 00:54:38,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:54:38,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:54:38,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:54:38,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:54:38,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:38" (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 [2019-11-07 00:54:38,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:54:38,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:54:38,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:54:38,666 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:54:38,666 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 00:54:38,669 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 00:54:38,669 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:54:38,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:54:38,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:54:38,675 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:54:38,675 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:54:38,675 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:54:38,675 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:54:38,676 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:54:38,677 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:54:38,677 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:54:38,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:54:38,680 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:54:38,680 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:54:38,680 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:54:38,680 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 00:54:38,681 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:54:38,681 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:54:38,681 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 00:54:38,681 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 00:54:38,681 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 00:54:38,682 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:54:38,682 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:54:38,682 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:54:38,682 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:54:38,682 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:54:38,683 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:54:38,683 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:54:38,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:54:38,683 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:54:38,684 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 00:54:38,684 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 00:54:38,684 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:54:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:54:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-11-07 00:54:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:54:38,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:54:38,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:54:38,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:54:38,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:54:38,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:54:38,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:54:38,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:54:38,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:54:38,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:54:38,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:54:38,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:54:38,688 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:54:38,688 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:54:38,688 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:54:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:54:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:54:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:54:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:54:38,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:54:38,690 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:54:38,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:54:38,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:54:38,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:54:38,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:54:38,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:54:38,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:54:38,692 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:54:38,692 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:54:38,692 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:54:38,692 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:54:38,693 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:54:38,693 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:54:38,694 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:54:38,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:54:38,694 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:54:38,695 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:54:38,695 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:54:38,695 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:54:38,696 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:54:38,696 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:54:38,696 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:54:38,697 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:54:38,697 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:54:38,698 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:54:38,698 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:54:38,699 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:54:38,700 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:54:38,700 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:54:38,700 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:54:38,700 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:54:38,701 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:54:38,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:54:38,701 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:54:38,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:54:38,701 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:54:38,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:54:38,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:54:38,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:54:38,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:54:38,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:54:38,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:54:38,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:54:38,702 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:54:38,703 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:54:38,703 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:54:38,703 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:54:38,703 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:54:38,703 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:54:38,703 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:54:38,704 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:54:38,704 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:54:38,704 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:54:38,704 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:54:38,705 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:54:38,705 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:54:38,705 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 00:54:38,705 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 00:54:38,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:54:38,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:54:38,706 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:54:38,706 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:54:38,707 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:54:38,707 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:54:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:54:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:54:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:54:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:54:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:54:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:54:38,710 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:54:38,710 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:54:38,711 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:54:38,711 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:54:38,711 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:54:38,711 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:54:38,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:54:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 00:54:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 00:54:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:54:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:54:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:54:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:54:38,719 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:54:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:54:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:54:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:54:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:54:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:54:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:54:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:54:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:54:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:54:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:54:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:54:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:54:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:54:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:54:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:54:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:54:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:54:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:54:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:54:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:54:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:54:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:54:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:54:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:54:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:54:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:54:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:54:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:54:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 00:54:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 00:54:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:54:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:54:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:54:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:54:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 00:54:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 00:54:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 00:54:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 00:54:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-11-07 00:54:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:54:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:54:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:54:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:54:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:54:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:54:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:54:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:54:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:54:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:54:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:54:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:54:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:54:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:54:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:54:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:54:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:54:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:54:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:54:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:54:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:54:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:54:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:54:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 00:54:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:54:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:54:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:54:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:54:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 00:54:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:54:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:54:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:54:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:54:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:54:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:54:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:54:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:54:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:54:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:54:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:54:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:54:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:54:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:54:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:54:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:54:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:54:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:54:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:54:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:54:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:54:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:54:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:54:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:54:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:54:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:54:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:54:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:54:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:54:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:54:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:54:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:54:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:54:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:54:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:54:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:54:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:54:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:54:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:54:40,951 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:54:40,952 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:54:40,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:40 BoogieIcfgContainer [2019-11-07 00:54:40,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:54:40,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:54:40,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:54:40,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:54:40,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:54:37" (1/3) ... [2019-11-07 00:54:40,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3e49a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:40, skipping insertion in model container [2019-11-07 00:54:40,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:38" (2/3) ... [2019-11-07 00:54:40,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3e49a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:40, skipping insertion in model container [2019-11-07 00:54:40,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:40" (3/3) ... [2019-11-07 00:54:40,962 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product32.cil.c [2019-11-07 00:54:40,973 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:54:40,982 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:54:40,995 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:54:41,027 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:54:41,027 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:54:41,027 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:54:41,027 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:54:41,027 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:54:41,027 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:54:41,028 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:54:41,028 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:54:41,068 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states. [2019-11-07 00:54:41,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-11-07 00:54:41,115 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:41,116 INFO L410 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] [2019-11-07 00:54:41,121 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:41,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:41,129 INFO L82 PathProgramCache]: Analyzing trace with hash -311164788, now seen corresponding path program 1 times [2019-11-07 00:54:41,141 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:41,142 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090967929] [2019-11-07 00:54:41,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:41,927 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:41,928 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090967929] [2019-11-07 00:54:41,929 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:41,930 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:54:41,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863442957] [2019-11-07 00:54:41,938 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:54:41,940 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:41,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:54:41,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:54:41,957 INFO L87 Difference]: Start difference. First operand 633 states. Second operand 2 states. [2019-11-07 00:54:42,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:42,048 INFO L93 Difference]: Finished difference Result 896 states and 1218 transitions. [2019-11-07 00:54:42,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:54:42,050 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 191 [2019-11-07 00:54:42,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:42,084 INFO L225 Difference]: With dead ends: 896 [2019-11-07 00:54:42,084 INFO L226 Difference]: Without dead ends: 576 [2019-11-07 00:54:42,101 INFO L630 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 [2019-11-07 00:54:42,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2019-11-07 00:54:42,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2019-11-07 00:54:42,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 576 states. [2019-11-07 00:54:42,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 786 transitions. [2019-11-07 00:54:42,247 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 786 transitions. Word has length 191 [2019-11-07 00:54:42,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:42,249 INFO L462 AbstractCegarLoop]: Abstraction has 576 states and 786 transitions. [2019-11-07 00:54:42,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:54:42,250 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 786 transitions. [2019-11-07 00:54:42,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-11-07 00:54:42,255 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:42,256 INFO L410 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] [2019-11-07 00:54:42,256 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:42,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:42,257 INFO L82 PathProgramCache]: Analyzing trace with hash 544104814, now seen corresponding path program 1 times [2019-11-07 00:54:42,257 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:42,257 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870492192] [2019-11-07 00:54:42,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:42,480 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:42,480 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870492192] [2019-11-07 00:54:42,480 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:42,481 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:42,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750251594] [2019-11-07 00:54:42,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:42,484 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:42,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:42,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:42,488 INFO L87 Difference]: Start difference. First operand 576 states and 786 transitions. Second operand 3 states. [2019-11-07 00:54:42,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:42,569 INFO L93 Difference]: Finished difference Result 879 states and 1180 transitions. [2019-11-07 00:54:42,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:42,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-11-07 00:54:42,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:42,580 INFO L225 Difference]: With dead ends: 879 [2019-11-07 00:54:42,580 INFO L226 Difference]: Without dead ends: 579 [2019-11-07 00:54:42,583 INFO L630 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 [2019-11-07 00:54:42,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2019-11-07 00:54:42,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 578. [2019-11-07 00:54:42,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2019-11-07 00:54:42,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 788 transitions. [2019-11-07 00:54:42,630 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 788 transitions. Word has length 192 [2019-11-07 00:54:42,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:42,631 INFO L462 AbstractCegarLoop]: Abstraction has 578 states and 788 transitions. [2019-11-07 00:54:42,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:42,632 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 788 transitions. [2019-11-07 00:54:42,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-11-07 00:54:42,637 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:42,637 INFO L410 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] [2019-11-07 00:54:42,638 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:42,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:42,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1874665950, now seen corresponding path program 1 times [2019-11-07 00:54:42,638 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:42,638 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255194049] [2019-11-07 00:54:42,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:42,809 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:42,810 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255194049] [2019-11-07 00:54:42,810 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:42,810 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:42,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042346812] [2019-11-07 00:54:42,811 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:42,812 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:42,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:42,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:42,812 INFO L87 Difference]: Start difference. First operand 578 states and 788 transitions. Second operand 3 states. [2019-11-07 00:54:42,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:42,853 INFO L93 Difference]: Finished difference Result 1134 states and 1577 transitions. [2019-11-07 00:54:42,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:42,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2019-11-07 00:54:42,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:42,859 INFO L225 Difference]: With dead ends: 1134 [2019-11-07 00:54:42,860 INFO L226 Difference]: Without dead ends: 621 [2019-11-07 00:54:42,862 INFO L630 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 [2019-11-07 00:54:42,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2019-11-07 00:54:42,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 620. [2019-11-07 00:54:42,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-11-07 00:54:42,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 860 transitions. [2019-11-07 00:54:42,894 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 860 transitions. Word has length 202 [2019-11-07 00:54:42,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:42,895 INFO L462 AbstractCegarLoop]: Abstraction has 620 states and 860 transitions. [2019-11-07 00:54:42,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:42,895 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 860 transitions. [2019-11-07 00:54:42,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-11-07 00:54:42,902 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:42,902 INFO L410 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] [2019-11-07 00:54:42,902 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:42,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:42,903 INFO L82 PathProgramCache]: Analyzing trace with hash -620463334, now seen corresponding path program 1 times [2019-11-07 00:54:42,903 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:42,903 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147746801] [2019-11-07 00:54:42,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:43,296 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:43,296 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147746801] [2019-11-07 00:54:43,297 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:43,297 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:43,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439461728] [2019-11-07 00:54:43,298 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:43,298 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:43,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:43,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:43,299 INFO L87 Difference]: Start difference. First operand 620 states and 860 transitions. Second operand 3 states. [2019-11-07 00:54:43,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:43,346 INFO L93 Difference]: Finished difference Result 1257 states and 1788 transitions. [2019-11-07 00:54:43,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:43,346 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2019-11-07 00:54:43,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:43,351 INFO L225 Difference]: With dead ends: 1257 [2019-11-07 00:54:43,352 INFO L226 Difference]: Without dead ends: 702 [2019-11-07 00:54:43,354 INFO L630 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 [2019-11-07 00:54:43,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2019-11-07 00:54:43,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 701. [2019-11-07 00:54:43,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2019-11-07 00:54:43,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 998 transitions. [2019-11-07 00:54:43,382 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 998 transitions. Word has length 203 [2019-11-07 00:54:43,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:43,383 INFO L462 AbstractCegarLoop]: Abstraction has 701 states and 998 transitions. [2019-11-07 00:54:43,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:43,383 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 998 transitions. [2019-11-07 00:54:43,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-11-07 00:54:43,389 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:43,389 INFO L410 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] [2019-11-07 00:54:43,389 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:43,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:43,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1948319678, now seen corresponding path program 1 times [2019-11-07 00:54:43,390 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:43,390 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638886027] [2019-11-07 00:54:43,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:43,580 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:43,581 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638886027] [2019-11-07 00:54:43,581 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:43,581 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:43,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823648920] [2019-11-07 00:54:43,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:43,583 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:43,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:43,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:43,584 INFO L87 Difference]: Start difference. First operand 701 states and 998 transitions. Second operand 3 states. [2019-11-07 00:54:43,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:43,632 INFO L93 Difference]: Finished difference Result 1494 states and 2192 transitions. [2019-11-07 00:54:43,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:43,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2019-11-07 00:54:43,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:43,640 INFO L225 Difference]: With dead ends: 1494 [2019-11-07 00:54:43,640 INFO L226 Difference]: Without dead ends: 858 [2019-11-07 00:54:43,643 INFO L630 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 [2019-11-07 00:54:43,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2019-11-07 00:54:43,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 857. [2019-11-07 00:54:43,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2019-11-07 00:54:43,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1262 transitions. [2019-11-07 00:54:43,686 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1262 transitions. Word has length 204 [2019-11-07 00:54:43,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:43,687 INFO L462 AbstractCegarLoop]: Abstraction has 857 states and 1262 transitions. [2019-11-07 00:54:43,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:43,687 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1262 transitions. [2019-11-07 00:54:43,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-11-07 00:54:43,693 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:43,693 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:43,693 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:43,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:43,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1879306950, now seen corresponding path program 1 times [2019-11-07 00:54:43,694 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:43,694 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257872303] [2019-11-07 00:54:43,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:43,965 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:43,965 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257872303] [2019-11-07 00:54:43,966 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:43,966 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:43,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539637870] [2019-11-07 00:54:43,967 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:43,967 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:43,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:43,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:43,968 INFO L87 Difference]: Start difference. First operand 857 states and 1262 transitions. Second operand 3 states. [2019-11-07 00:54:44,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:44,033 INFO L93 Difference]: Finished difference Result 1950 states and 2964 transitions. [2019-11-07 00:54:44,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:44,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-11-07 00:54:44,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:44,041 INFO L225 Difference]: With dead ends: 1950 [2019-11-07 00:54:44,041 INFO L226 Difference]: Without dead ends: 1158 [2019-11-07 00:54:44,045 INFO L630 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 [2019-11-07 00:54:44,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2019-11-07 00:54:44,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1157. [2019-11-07 00:54:44,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1157 states. [2019-11-07 00:54:44,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1766 transitions. [2019-11-07 00:54:44,091 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1766 transitions. Word has length 205 [2019-11-07 00:54:44,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:44,091 INFO L462 AbstractCegarLoop]: Abstraction has 1157 states and 1766 transitions. [2019-11-07 00:54:44,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:44,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1766 transitions. [2019-11-07 00:54:44,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-11-07 00:54:44,100 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:44,100 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:44,101 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:44,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:44,101 INFO L82 PathProgramCache]: Analyzing trace with hash -59408994, now seen corresponding path program 1 times [2019-11-07 00:54:44,101 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:44,101 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465850140] [2019-11-07 00:54:44,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:44,313 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:44,314 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465850140] [2019-11-07 00:54:44,314 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:44,314 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:44,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356227996] [2019-11-07 00:54:44,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:44,316 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:44,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:44,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:44,323 INFO L87 Difference]: Start difference. First operand 1157 states and 1766 transitions. Second operand 3 states. [2019-11-07 00:54:44,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:44,431 INFO L93 Difference]: Finished difference Result 2826 states and 4436 transitions. [2019-11-07 00:54:44,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:44,432 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 206 [2019-11-07 00:54:44,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:44,447 INFO L225 Difference]: With dead ends: 2826 [2019-11-07 00:54:44,447 INFO L226 Difference]: Without dead ends: 1734 [2019-11-07 00:54:44,455 INFO L630 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 [2019-11-07 00:54:44,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2019-11-07 00:54:44,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1733. [2019-11-07 00:54:44,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1733 states. [2019-11-07 00:54:44,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 2726 transitions. [2019-11-07 00:54:44,639 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 2726 transitions. Word has length 206 [2019-11-07 00:54:44,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:44,640 INFO L462 AbstractCegarLoop]: Abstraction has 1733 states and 2726 transitions. [2019-11-07 00:54:44,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:44,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 2726 transitions. [2019-11-07 00:54:44,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-11-07 00:54:44,652 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:44,652 INFO L410 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] [2019-11-07 00:54:44,652 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:44,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:44,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1504076601, now seen corresponding path program 1 times [2019-11-07 00:54:44,653 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:44,653 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534548871] [2019-11-07 00:54:44,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:45,068 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-07 00:54:45,068 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534548871] [2019-11-07 00:54:45,068 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:45,068 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-11-07 00:54:45,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317498761] [2019-11-07 00:54:45,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-07 00:54:45,070 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:45,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-07 00:54:45,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-11-07 00:54:45,070 INFO L87 Difference]: Start difference. First operand 1733 states and 2726 transitions. Second operand 19 states. [2019-11-07 00:54:50,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:50,721 INFO L93 Difference]: Finished difference Result 4360 states and 6828 transitions. [2019-11-07 00:54:50,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-11-07 00:54:50,721 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 208 [2019-11-07 00:54:50,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:50,778 INFO L225 Difference]: With dead ends: 4360 [2019-11-07 00:54:50,778 INFO L226 Difference]: Without dead ends: 4073 [2019-11-07 00:54:50,785 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-11-07 00:54:50,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2019-11-07 00:54:51,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 4036. [2019-11-07 00:54:51,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4036 states. [2019-11-07 00:54:51,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 6377 transitions. [2019-11-07 00:54:51,096 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 6377 transitions. Word has length 208 [2019-11-07 00:54:51,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:51,098 INFO L462 AbstractCegarLoop]: Abstraction has 4036 states and 6377 transitions. [2019-11-07 00:54:51,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-07 00:54:51,099 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 6377 transitions. [2019-11-07 00:54:51,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-11-07 00:54:51,123 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:51,123 INFO L410 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] [2019-11-07 00:54:51,123 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:51,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:51,124 INFO L82 PathProgramCache]: Analyzing trace with hash 499285188, now seen corresponding path program 1 times [2019-11-07 00:54:51,124 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:51,124 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575486468] [2019-11-07 00:54:51,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:51,463 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:51,463 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575486468] [2019-11-07 00:54:51,465 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:51,465 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-11-07 00:54:51,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626860055] [2019-11-07 00:54:51,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-07 00:54:51,466 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:51,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-07 00:54:51,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-11-07 00:54:51,467 INFO L87 Difference]: Start difference. First operand 4036 states and 6377 transitions. Second operand 13 states. [2019-11-07 00:54:52,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:52,139 INFO L93 Difference]: Finished difference Result 5385 states and 8273 transitions. [2019-11-07 00:54:52,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-07 00:54:52,140 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 209 [2019-11-07 00:54:52,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:52,168 INFO L225 Difference]: With dead ends: 5385 [2019-11-07 00:54:52,169 INFO L226 Difference]: Without dead ends: 4170 [2019-11-07 00:54:52,175 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-11-07 00:54:52,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2019-11-07 00:54:52,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 4170. [2019-11-07 00:54:52,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4170 states. [2019-11-07 00:54:52,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4170 states to 4170 states and 6594 transitions. [2019-11-07 00:54:52,423 INFO L78 Accepts]: Start accepts. Automaton has 4170 states and 6594 transitions. Word has length 209 [2019-11-07 00:54:52,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:52,424 INFO L462 AbstractCegarLoop]: Abstraction has 4170 states and 6594 transitions. [2019-11-07 00:54:52,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-07 00:54:52,424 INFO L276 IsEmpty]: Start isEmpty. Operand 4170 states and 6594 transitions. [2019-11-07 00:54:52,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-11-07 00:54:52,448 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:52,449 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:52,449 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:52,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:52,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1211410007, now seen corresponding path program 1 times [2019-11-07 00:54:52,450 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:52,450 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248002757] [2019-11-07 00:54:52,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:52,859 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-07 00:54:52,859 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248002757] [2019-11-07 00:54:52,860 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:52,925 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-11-07 00:54:52,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469895310] [2019-11-07 00:54:52,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-07 00:54:52,926 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:52,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-07 00:54:52,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-11-07 00:54:52,929 INFO L87 Difference]: Start difference. First operand 4170 states and 6594 transitions. Second operand 15 states. [2019-11-07 00:54:56,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:56,902 INFO L93 Difference]: Finished difference Result 5557 states and 8565 transitions. [2019-11-07 00:54:56,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-11-07 00:54:56,903 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 209 [2019-11-07 00:54:56,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:56,931 INFO L225 Difference]: With dead ends: 5557 [2019-11-07 00:54:56,932 INFO L226 Difference]: Without dead ends: 4288 [2019-11-07 00:54:56,944 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-11-07 00:54:56,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4288 states. [2019-11-07 00:54:57,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4288 to 4251. [2019-11-07 00:54:57,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4251 states. [2019-11-07 00:54:57,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 6732 transitions. [2019-11-07 00:54:57,234 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 6732 transitions. Word has length 209 [2019-11-07 00:54:57,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:57,235 INFO L462 AbstractCegarLoop]: Abstraction has 4251 states and 6732 transitions. [2019-11-07 00:54:57,235 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-07 00:54:57,235 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 6732 transitions. [2019-11-07 00:54:57,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-11-07 00:54:57,259 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:57,259 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:57,260 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:57,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:57,260 INFO L82 PathProgramCache]: Analyzing trace with hash 493886152, now seen corresponding path program 1 times [2019-11-07 00:54:57,260 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:57,261 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190787169] [2019-11-07 00:54:57,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:57,617 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-07 00:54:57,617 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190787169] [2019-11-07 00:54:57,618 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:57,618 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-11-07 00:54:57,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609237108] [2019-11-07 00:54:57,619 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-07 00:54:57,619 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:57,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-07 00:54:57,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-11-07 00:54:57,620 INFO L87 Difference]: Start difference. First operand 4251 states and 6732 transitions. Second operand 18 states. [2019-11-07 00:54:58,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:58,291 INFO L93 Difference]: Finished difference Result 5668 states and 8728 transitions. [2019-11-07 00:54:58,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-07 00:54:58,292 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 209 [2019-11-07 00:54:58,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:58,331 INFO L225 Difference]: With dead ends: 5668 [2019-11-07 00:54:58,331 INFO L226 Difference]: Without dead ends: 4298 [2019-11-07 00:54:58,343 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-11-07 00:54:58,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4298 states. [2019-11-07 00:54:58,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4298 to 4296. [2019-11-07 00:54:58,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4296 states. [2019-11-07 00:54:58,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4296 states to 4296 states and 6771 transitions. [2019-11-07 00:54:58,788 INFO L78 Accepts]: Start accepts. Automaton has 4296 states and 6771 transitions. Word has length 209 [2019-11-07 00:54:58,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:58,791 INFO L462 AbstractCegarLoop]: Abstraction has 4296 states and 6771 transitions. [2019-11-07 00:54:58,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-07 00:54:58,791 INFO L276 IsEmpty]: Start isEmpty. Operand 4296 states and 6771 transitions. [2019-11-07 00:54:58,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-11-07 00:54:58,820 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:58,820 INFO L410 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] [2019-11-07 00:54:58,820 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:58,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:58,821 INFO L82 PathProgramCache]: Analyzing trace with hash -216412755, now seen corresponding path program 1 times [2019-11-07 00:54:58,821 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:58,821 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444767501] [2019-11-07 00:54:58,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:59,027 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:59,027 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444767501] [2019-11-07 00:54:59,028 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:59,028 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:54:59,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761754561] [2019-11-07 00:54:59,029 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:54:59,029 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:59,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:54:59,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:54:59,030 INFO L87 Difference]: Start difference. First operand 4296 states and 6771 transitions. Second operand 5 states. [2019-11-07 00:55:00,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:00,482 INFO L93 Difference]: Finished difference Result 8545 states and 13391 transitions. [2019-11-07 00:55:00,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:55:00,482 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2019-11-07 00:55:00,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:00,559 INFO L225 Difference]: With dead ends: 8545 [2019-11-07 00:55:00,559 INFO L226 Difference]: Without dead ends: 7834 [2019-11-07 00:55:00,568 INFO L630 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 [2019-11-07 00:55:00,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7834 states. [2019-11-07 00:55:01,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7834 to 7820. [2019-11-07 00:55:01,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7820 states. [2019-11-07 00:55:01,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7820 states to 7820 states and 12337 transitions. [2019-11-07 00:55:01,056 INFO L78 Accepts]: Start accepts. Automaton has 7820 states and 12337 transitions. Word has length 209 [2019-11-07 00:55:01,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:01,056 INFO L462 AbstractCegarLoop]: Abstraction has 7820 states and 12337 transitions. [2019-11-07 00:55:01,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:55:01,057 INFO L276 IsEmpty]: Start isEmpty. Operand 7820 states and 12337 transitions. [2019-11-07 00:55:01,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-11-07 00:55:01,237 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:01,238 INFO L410 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] [2019-11-07 00:55:01,238 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:01,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:01,239 INFO L82 PathProgramCache]: Analyzing trace with hash -196075380, now seen corresponding path program 1 times [2019-11-07 00:55:01,239 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:01,239 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395934755] [2019-11-07 00:55:01,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:01,451 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:01,452 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395934755] [2019-11-07 00:55:01,452 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:01,452 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 00:55:01,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071225432] [2019-11-07 00:55:01,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:55:01,453 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:01,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:55:01,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:55:01,454 INFO L87 Difference]: Start difference. First operand 7820 states and 12337 transitions. Second operand 7 states. [2019-11-07 00:55:04,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:04,078 INFO L93 Difference]: Finished difference Result 18483 states and 29904 transitions. [2019-11-07 00:55:04,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-07 00:55:04,079 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 209 [2019-11-07 00:55:04,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:04,163 INFO L225 Difference]: With dead ends: 18483 [2019-11-07 00:55:04,164 INFO L226 Difference]: Without dead ends: 14982 [2019-11-07 00:55:04,190 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-11-07 00:55:04,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14982 states. [2019-11-07 00:55:04,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14982 to 14976. [2019-11-07 00:55:04,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14976 states. [2019-11-07 00:55:05,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14976 states to 14976 states and 24039 transitions. [2019-11-07 00:55:05,027 INFO L78 Accepts]: Start accepts. Automaton has 14976 states and 24039 transitions. Word has length 209 [2019-11-07 00:55:05,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:05,028 INFO L462 AbstractCegarLoop]: Abstraction has 14976 states and 24039 transitions. [2019-11-07 00:55:05,028 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:55:05,028 INFO L276 IsEmpty]: Start isEmpty. Operand 14976 states and 24039 transitions. [2019-11-07 00:55:05,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-11-07 00:55:05,061 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:05,062 INFO L410 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] [2019-11-07 00:55:05,062 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:05,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:05,062 INFO L82 PathProgramCache]: Analyzing trace with hash -428249634, now seen corresponding path program 1 times [2019-11-07 00:55:05,063 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:05,063 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904016841] [2019-11-07 00:55:05,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:05,673 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:05,673 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904016841] [2019-11-07 00:55:05,673 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:05,673 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-11-07 00:55:05,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115363503] [2019-11-07 00:55:05,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-11-07 00:55:05,674 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:05,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-11-07 00:55:05,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2019-11-07 00:55:05,675 INFO L87 Difference]: Start difference. First operand 14976 states and 24039 transitions. Second operand 28 states.