/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_spec6_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:53:59,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:53:59,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:53:59,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:53:59,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:53:59,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:53:59,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:53:59,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:53:59,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:53:59,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:53:59,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:53:59,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:53:59,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:53:59,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:53:59,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:53:59,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:53:59,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:53:59,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:53:59,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:53:59,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:53:59,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:53:59,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:53:59,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:53:59,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:53:59,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:53:59,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:53:59,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:53:59,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:53:59,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:53:59,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:53:59,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:53:59,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:53:59,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:53:59,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:53:59,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:53:59,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:53:59,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:53:59,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:53:59,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:53:59,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:53:59,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:53:59,889 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 00:53:59,909 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:53:59,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:53:59,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:53:59,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:53:59,911 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:53:59,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:53:59,911 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:53:59,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:53:59,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:53:59,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:53:59,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:53:59,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:53:59,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:53:59,913 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:53:59,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:53:59,913 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:53:59,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:53:59,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:53:59,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:53:59,914 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:53:59,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:53:59,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:53:59,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:53:59,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:53:59,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:53:59,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:53:59,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:53:59,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:53:59,916 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 00:54:00,229 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:54:00,246 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:54:00,249 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:54:00,250 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:54:00,250 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:54:00,250 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product34.cil.c [2019-11-07 00:54:00,311 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c698cf876/6d0ff050c0d14b5b8838385b37c97ad1/FLAGecfa1ddb8 [2019-11-07 00:54:00,950 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:54:00,951 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product34.cil.c [2019-11-07 00:54:00,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c698cf876/6d0ff050c0d14b5b8838385b37c97ad1/FLAGecfa1ddb8 [2019-11-07 00:54:01,149 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c698cf876/6d0ff050c0d14b5b8838385b37c97ad1 [2019-11-07 00:54:01,164 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:54:01,172 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:54:01,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:54:01,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:54:01,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:54:01,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:01" (1/1) ... [2019-11-07 00:54:01,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45a84a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:01, skipping insertion in model container [2019-11-07 00:54:01,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:01" (1/1) ... [2019-11-07 00:54:01,223 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:54:01,382 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:54:02,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:54:02,230 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:54:02,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:54:02,448 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:54:02,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:02 WrapperNode [2019-11-07 00:54:02,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:54:02,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:54:02,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:54:02,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:54:02,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:02" (1/1) ... [2019-11-07 00:54:02,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:02" (1/1) ... [2019-11-07 00:54:02,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:02" (1/1) ... [2019-11-07 00:54:02,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:02" (1/1) ... [2019-11-07 00:54:02,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:02" (1/1) ... [2019-11-07 00:54:02,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:02" (1/1) ... [2019-11-07 00:54:02,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:02" (1/1) ... [2019-11-07 00:54:02,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:54:02,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:54:02,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:54:02,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:54:02,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:54:02,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:54:02,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:54:02,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:54:02,844 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:54:02,844 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:54:02,845 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:54:02,845 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:54:02,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 00:54:02,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 00:54:02,845 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:54:02,846 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:54:02,846 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-11-07 00:54:02,846 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 00:54:02,846 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:54:02,846 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:54:02,846 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 00:54:02,847 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 00:54:02,847 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 00:54:02,847 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:54:02,847 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:54:02,849 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:54:02,849 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:54:02,849 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:54:02,849 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:54:02,849 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:54:02,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:54:02,850 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:54:02,850 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 00:54:02,850 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:54:02,850 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 00:54:02,850 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:54:02,850 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:54:02,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:54:02,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:54:02,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:54:02,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:54:02,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:54:02,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:54:02,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:54:02,852 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:54:02,852 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:54:02,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:54:02,852 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:54:02,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:54:02,852 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:54:02,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:54:02,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:54:02,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:54:02,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:54:02,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:54:02,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:54:02,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:54:02,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:54:02,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:54:02,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:54:02,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:54:02,854 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:54:02,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:54:02,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:54:02,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:54:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:54:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 00:54:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 00:54:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:54:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:54:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:54:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:54:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:54:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:54:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:54:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:54:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:54:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:54:02,857 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:54:02,857 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:54:02,857 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:54:02,857 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:54:02,857 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:54:02,857 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:54:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:54:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:54:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:54:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:54:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:54:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:54:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:54:02,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:54:02,859 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:54:02,859 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:54:02,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:54:02,859 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:54:02,859 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:54:02,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:54:02,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:54:02,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:54:02,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:54:02,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:54:02,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:54:02,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:54:02,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:54:02,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:54:02,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:54:02,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:54:02,861 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:54:02,861 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:54:02,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:54:02,862 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:54:02,862 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:54:02,862 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:54:02,862 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:54:02,862 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:54:02,862 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:54:02,863 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:54:02,863 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:54:02,863 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:54:02,863 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:54:02,863 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 00:54:02,863 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 00:54:02,864 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:54:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:54:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:54:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:54:02,864 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:54:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:54:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:54:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:54:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:54:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:54:02,865 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:54:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:54:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:54:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:54:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 00:54:02,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:54:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 00:54:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:54:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:54:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:54:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:54:02,867 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:54:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:54:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:54:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:54:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:54:02,868 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:54:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:54:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:54:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:54:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:54:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:54:02,869 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:54:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:54:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:54:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:54:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:54:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:54:02,870 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:54:02,871 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:54:02,871 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:54:02,871 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:54:02,871 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:54:02,871 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:54:02,871 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:54:02,872 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:54:02,872 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:54:02,872 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:54:02,872 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:54:02,872 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 00:54:02,872 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:54:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 00:54:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:54:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:54:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-11-07 00:54:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 00:54:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 00:54:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 00:54:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 00:54:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:54:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:54:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:54:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:54:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:54:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:54:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:54:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:54:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:54:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:54:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:54:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:54:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:54:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:54:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:54:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:54:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:54:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:54:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:54:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:54:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:54:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:54:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:54:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:54:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:54:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:54:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:54:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 00:54:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 00:54:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:54:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:54:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:54:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:54:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:54:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:54:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:54:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:54:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:54:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:54:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:54:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:54:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:54:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:54:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:54:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:54:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:54:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:54:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:54:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:54:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:54:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:54:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:54:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:54:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:54:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:54:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:54:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:54:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:54:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:54:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:54:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:54:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:54:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:54:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:54:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:54:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:54:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:54:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:54:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 00:54:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 00:54:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:54:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:54:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:54:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:54:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:54:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:54:05,326 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:54:05,326 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:54:05,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:05 BoogieIcfgContainer [2019-11-07 00:54:05,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:54:05,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:54:05,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:54:05,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:54:05,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:54:01" (1/3) ... [2019-11-07 00:54:05,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1b8420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:05, skipping insertion in model container [2019-11-07 00:54:05,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:02" (2/3) ... [2019-11-07 00:54:05,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d1b8420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:05, skipping insertion in model container [2019-11-07 00:54:05,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:05" (3/3) ... [2019-11-07 00:54:05,342 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product34.cil.c [2019-11-07 00:54:05,355 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:54:05,371 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:54:05,385 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:54:05,442 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:54:05,442 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:54:05,442 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:54:05,449 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:54:05,450 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:54:05,450 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:54:05,450 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:54:05,450 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:54:05,495 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states. [2019-11-07 00:54:05,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-11-07 00:54:05,531 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:05,534 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] [2019-11-07 00:54:05,538 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:05,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:05,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1836415482, now seen corresponding path program 1 times [2019-11-07 00:54:05,556 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:05,557 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256986229] [2019-11-07 00:54:05,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:06,263 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 00:54:06,264 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256986229] [2019-11-07 00:54:06,265 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:06,265 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:54:06,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560041182] [2019-11-07 00:54:06,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:54:06,274 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:06,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:54:06,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:54:06,291 INFO L87 Difference]: Start difference. First operand 659 states. Second operand 2 states. [2019-11-07 00:54:06,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:06,388 INFO L93 Difference]: Finished difference Result 1004 states and 1352 transitions. [2019-11-07 00:54:06,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:54:06,390 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 198 [2019-11-07 00:54:06,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:06,431 INFO L225 Difference]: With dead ends: 1004 [2019-11-07 00:54:06,431 INFO L226 Difference]: Without dead ends: 630 [2019-11-07 00:54:06,443 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 00:54:06,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2019-11-07 00:54:06,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 630. [2019-11-07 00:54:06,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2019-11-07 00:54:06,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 854 transitions. [2019-11-07 00:54:06,592 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 854 transitions. Word has length 198 [2019-11-07 00:54:06,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:06,596 INFO L462 AbstractCegarLoop]: Abstraction has 630 states and 854 transitions. [2019-11-07 00:54:06,596 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:54:06,596 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 854 transitions. [2019-11-07 00:54:06,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-11-07 00:54:06,605 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:06,605 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] [2019-11-07 00:54:06,605 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:06,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:06,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1234031911, now seen corresponding path program 1 times [2019-11-07 00:54:06,606 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:06,606 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68832259] [2019-11-07 00:54:06,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:06,987 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 00:54:06,988 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68832259] [2019-11-07 00:54:06,988 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:06,988 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:06,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381512511] [2019-11-07 00:54:07,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:07,003 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:07,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:07,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:07,008 INFO L87 Difference]: Start difference. First operand 630 states and 854 transitions. Second operand 3 states. [2019-11-07 00:54:07,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:07,093 INFO L93 Difference]: Finished difference Result 987 states and 1316 transitions. [2019-11-07 00:54:07,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:07,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-11-07 00:54:07,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:07,104 INFO L225 Difference]: With dead ends: 987 [2019-11-07 00:54:07,105 INFO L226 Difference]: Without dead ends: 633 [2019-11-07 00:54:07,107 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 00:54:07,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2019-11-07 00:54:07,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 632. [2019-11-07 00:54:07,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2019-11-07 00:54:07,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 856 transitions. [2019-11-07 00:54:07,147 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 856 transitions. Word has length 199 [2019-11-07 00:54:07,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:07,148 INFO L462 AbstractCegarLoop]: Abstraction has 632 states and 856 transitions. [2019-11-07 00:54:07,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:07,149 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 856 transitions. [2019-11-07 00:54:07,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-11-07 00:54:07,154 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:07,155 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 00:54:07,155 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:07,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:07,156 INFO L82 PathProgramCache]: Analyzing trace with hash -245674181, now seen corresponding path program 1 times [2019-11-07 00:54:07,156 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:07,156 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131788868] [2019-11-07 00:54:07,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:07,374 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 00:54:07,375 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131788868] [2019-11-07 00:54:07,375 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:07,376 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:07,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251711899] [2019-11-07 00:54:07,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:07,381 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:07,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:07,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:07,382 INFO L87 Difference]: Start difference. First operand 632 states and 856 transitions. Second operand 3 states. [2019-11-07 00:54:07,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:07,440 INFO L93 Difference]: Finished difference Result 1242 states and 1713 transitions. [2019-11-07 00:54:07,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:07,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-11-07 00:54:07,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:07,452 INFO L225 Difference]: With dead ends: 1242 [2019-11-07 00:54:07,452 INFO L226 Difference]: Without dead ends: 675 [2019-11-07 00:54:07,455 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 00:54:07,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2019-11-07 00:54:07,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 674. [2019-11-07 00:54:07,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 674 states. [2019-11-07 00:54:07,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 928 transitions. [2019-11-07 00:54:07,507 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 928 transitions. Word has length 205 [2019-11-07 00:54:07,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:07,509 INFO L462 AbstractCegarLoop]: Abstraction has 674 states and 928 transitions. [2019-11-07 00:54:07,510 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:07,510 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 928 transitions. [2019-11-07 00:54:07,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-11-07 00:54:07,521 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:07,522 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 00:54:07,527 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:07,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:07,530 INFO L82 PathProgramCache]: Analyzing trace with hash 716085072, now seen corresponding path program 1 times [2019-11-07 00:54:07,530 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:07,531 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001571385] [2019-11-07 00:54:07,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:08,080 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 00:54:08,081 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001571385] [2019-11-07 00:54:08,081 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:08,082 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 00:54:08,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659714033] [2019-11-07 00:54:08,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 00:54:08,083 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:08,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 00:54:08,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:54:08,083 INFO L87 Difference]: Start difference. First operand 674 states and 928 transitions. Second operand 11 states. [2019-11-07 00:54:14,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:14,988 INFO L93 Difference]: Finished difference Result 3690 states and 5193 transitions. [2019-11-07 00:54:14,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-11-07 00:54:14,989 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2019-11-07 00:54:14,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:15,014 INFO L225 Difference]: With dead ends: 3690 [2019-11-07 00:54:15,014 INFO L226 Difference]: Without dead ends: 3349 [2019-11-07 00:54:15,018 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-11-07 00:54:15,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3349 states. [2019-11-07 00:54:15,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3349 to 3328. [2019-11-07 00:54:15,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3328 states. [2019-11-07 00:54:15,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3328 states to 3328 states and 4577 transitions. [2019-11-07 00:54:15,182 INFO L78 Accepts]: Start accepts. Automaton has 3328 states and 4577 transitions. Word has length 206 [2019-11-07 00:54:15,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:15,183 INFO L462 AbstractCegarLoop]: Abstraction has 3328 states and 4577 transitions. [2019-11-07 00:54:15,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 00:54:15,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3328 states and 4577 transitions. [2019-11-07 00:54:15,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-11-07 00:54:15,189 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:15,190 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] [2019-11-07 00:54:15,190 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:15,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:15,191 INFO L82 PathProgramCache]: Analyzing trace with hash -2127126410, now seen corresponding path program 1 times [2019-11-07 00:54:15,191 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:15,191 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117745204] [2019-11-07 00:54:15,192 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:15,595 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 00:54:15,596 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117745204] [2019-11-07 00:54:15,596 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:15,596 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-11-07 00:54:15,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132154835] [2019-11-07 00:54:15,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-07 00:54:15,597 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:15,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-07 00:54:15,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-11-07 00:54:15,598 INFO L87 Difference]: Start difference. First operand 3328 states and 4577 transitions. Second operand 20 states. [2019-11-07 00:54:16,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:16,304 INFO L93 Difference]: Finished difference Result 6287 states and 8770 transitions. [2019-11-07 00:54:16,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-07 00:54:16,304 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 207 [2019-11-07 00:54:16,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:16,327 INFO L225 Difference]: With dead ends: 6287 [2019-11-07 00:54:16,327 INFO L226 Difference]: Without dead ends: 3274 [2019-11-07 00:54:16,340 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-11-07 00:54:16,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2019-11-07 00:54:16,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 3272. [2019-11-07 00:54:16,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3272 states. [2019-11-07 00:54:16,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3272 states to 3272 states and 4493 transitions. [2019-11-07 00:54:16,516 INFO L78 Accepts]: Start accepts. Automaton has 3272 states and 4493 transitions. Word has length 207 [2019-11-07 00:54:16,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:16,517 INFO L462 AbstractCegarLoop]: Abstraction has 3272 states and 4493 transitions. [2019-11-07 00:54:16,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-07 00:54:16,517 INFO L276 IsEmpty]: Start isEmpty. Operand 3272 states and 4493 transitions. [2019-11-07 00:54:16,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-11-07 00:54:16,521 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:16,522 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, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:16,522 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:16,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:16,522 INFO L82 PathProgramCache]: Analyzing trace with hash 264077804, now seen corresponding path program 1 times [2019-11-07 00:54:16,523 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:16,523 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335650580] [2019-11-07 00:54:16,523 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:16,748 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 00:54:16,748 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335650580] [2019-11-07 00:54:16,749 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:16,749 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:54:16,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192578057] [2019-11-07 00:54:16,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:54:16,750 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:16,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:54:16,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:54:16,751 INFO L87 Difference]: Start difference. First operand 3272 states and 4493 transitions. Second operand 6 states. [2019-11-07 00:54:17,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:17,589 INFO L93 Difference]: Finished difference Result 9521 states and 13248 transitions. [2019-11-07 00:54:17,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 00:54:17,590 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2019-11-07 00:54:17,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:17,636 INFO L225 Difference]: With dead ends: 9521 [2019-11-07 00:54:17,636 INFO L226 Difference]: Without dead ends: 6631 [2019-11-07 00:54:17,652 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:54:17,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6631 states. [2019-11-07 00:54:18,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6631 to 6560. [2019-11-07 00:54:18,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6560 states. [2019-11-07 00:54:18,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6560 states to 6560 states and 9109 transitions. [2019-11-07 00:54:18,052 INFO L78 Accepts]: Start accepts. Automaton has 6560 states and 9109 transitions. Word has length 216 [2019-11-07 00:54:18,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:18,053 INFO L462 AbstractCegarLoop]: Abstraction has 6560 states and 9109 transitions. [2019-11-07 00:54:18,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:54:18,054 INFO L276 IsEmpty]: Start isEmpty. Operand 6560 states and 9109 transitions. [2019-11-07 00:54:18,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-11-07 00:54:18,063 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:18,064 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:18,064 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:18,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:18,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1993707159, now seen corresponding path program 1 times [2019-11-07 00:54:18,065 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:18,065 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093501920] [2019-11-07 00:54:18,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:18,279 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 00:54:18,280 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093501920] [2019-11-07 00:54:18,280 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:18,280 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:54:18,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462511140] [2019-11-07 00:54:18,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:54:18,282 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:18,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:54:18,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:54:18,286 INFO L87 Difference]: Start difference. First operand 6560 states and 9109 transitions. Second operand 5 states. [2019-11-07 00:54:20,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:20,139 INFO L93 Difference]: Finished difference Result 24907 states and 35520 transitions. [2019-11-07 00:54:20,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:54:20,139 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2019-11-07 00:54:20,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:20,279 INFO L225 Difference]: With dead ends: 24907 [2019-11-07 00:54:20,279 INFO L226 Difference]: Without dead ends: 19044 [2019-11-07 00:54:20,322 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 00:54:20,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19044 states. [2019-11-07 00:54:21,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19044 to 18948. [2019-11-07 00:54:21,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18948 states. [2019-11-07 00:54:21,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18948 states to 18948 states and 26778 transitions. [2019-11-07 00:54:21,869 INFO L78 Accepts]: Start accepts. Automaton has 18948 states and 26778 transitions. Word has length 217 [2019-11-07 00:54:21,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:21,870 INFO L462 AbstractCegarLoop]: Abstraction has 18948 states and 26778 transitions. [2019-11-07 00:54:21,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:54:21,870 INFO L276 IsEmpty]: Start isEmpty. Operand 18948 states and 26778 transitions. [2019-11-07 00:54:21,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-11-07 00:54:21,879 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:21,880 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:21,880 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:21,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:21,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1714484018, now seen corresponding path program 1 times [2019-11-07 00:54:21,880 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:21,881 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51109128] [2019-11-07 00:54:21,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:22,125 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 00:54:22,126 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51109128] [2019-11-07 00:54:22,126 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:22,126 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-11-07 00:54:22,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143077250] [2019-11-07 00:54:22,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-07 00:54:22,128 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:22,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-07 00:54:22,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-11-07 00:54:22,128 INFO L87 Difference]: Start difference. First operand 18948 states and 26778 transitions. Second operand 13 states. [2019-11-07 00:54:23,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:23,276 INFO L93 Difference]: Finished difference Result 36471 states and 51393 transitions. [2019-11-07 00:54:23,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-07 00:54:23,276 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 217 [2019-11-07 00:54:23,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:23,366 INFO L225 Difference]: With dead ends: 36471 [2019-11-07 00:54:23,367 INFO L226 Difference]: Without dead ends: 18872 [2019-11-07 00:54:23,441 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 00:54:23,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18872 states. [2019-11-07 00:54:24,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18872 to 18820. [2019-11-07 00:54:24,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18820 states. [2019-11-07 00:54:24,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18820 states to 18820 states and 26387 transitions. [2019-11-07 00:54:24,179 INFO L78 Accepts]: Start accepts. Automaton has 18820 states and 26387 transitions. Word has length 217 [2019-11-07 00:54:24,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:24,180 INFO L462 AbstractCegarLoop]: Abstraction has 18820 states and 26387 transitions. [2019-11-07 00:54:24,181 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-07 00:54:24,181 INFO L276 IsEmpty]: Start isEmpty. Operand 18820 states and 26387 transitions. [2019-11-07 00:54:24,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-11-07 00:54:24,196 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:24,197 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:54:24,197 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:24,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:24,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1765180475, now seen corresponding path program 1 times [2019-11-07 00:54:24,198 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:24,198 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677756988] [2019-11-07 00:54:24,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:24,533 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 00:54:24,533 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677756988] [2019-11-07 00:54:24,533 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:24,534 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:24,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794948669] [2019-11-07 00:54:24,535 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:24,535 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:24,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:24,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:24,535 INFO L87 Difference]: Start difference. First operand 18820 states and 26387 transitions. Second operand 3 states. [2019-11-07 00:54:24,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:24,971 INFO L93 Difference]: Finished difference Result 37919 states and 53334 transitions. [2019-11-07 00:54:24,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:24,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2019-11-07 00:54:24,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:25,065 INFO L225 Difference]: With dead ends: 37919 [2019-11-07 00:54:25,066 INFO L226 Difference]: Without dead ends: 19164 [2019-11-07 00:54:25,110 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 00:54:25,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19164 states. [2019-11-07 00:54:26,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19164 to 19160. [2019-11-07 00:54:26,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19160 states. [2019-11-07 00:54:26,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19160 states to 19160 states and 27008 transitions. [2019-11-07 00:54:26,740 INFO L78 Accepts]: Start accepts. Automaton has 19160 states and 27008 transitions. Word has length 246 [2019-11-07 00:54:26,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:26,740 INFO L462 AbstractCegarLoop]: Abstraction has 19160 states and 27008 transitions. [2019-11-07 00:54:26,740 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:26,740 INFO L276 IsEmpty]: Start isEmpty. Operand 19160 states and 27008 transitions. [2019-11-07 00:54:26,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-11-07 00:54:26,756 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:26,757 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:54:26,757 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:26,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:26,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1332042394, now seen corresponding path program 1 times [2019-11-07 00:54:26,758 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:26,758 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650688834] [2019-11-07 00:54:26,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:26,907 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 00:54:26,907 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650688834] [2019-11-07 00:54:26,908 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:26,908 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:26,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598610348] [2019-11-07 00:54:26,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:26,909 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:26,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:26,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:26,910 INFO L87 Difference]: Start difference. First operand 19160 states and 27008 transitions. Second operand 3 states. [2019-11-07 00:54:27,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:27,332 INFO L93 Difference]: Finished difference Result 38899 states and 55133 transitions. [2019-11-07 00:54:27,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:27,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2019-11-07 00:54:27,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:27,412 INFO L225 Difference]: With dead ends: 38899 [2019-11-07 00:54:27,413 INFO L226 Difference]: Without dead ends: 19804 [2019-11-07 00:54:27,456 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 00:54:27,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19804 states. [2019-11-07 00:54:28,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19804 to 19800. [2019-11-07 00:54:28,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19800 states. [2019-11-07 00:54:28,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19800 states to 19800 states and 28178 transitions. [2019-11-07 00:54:28,200 INFO L78 Accepts]: Start accepts. Automaton has 19800 states and 28178 transitions. Word has length 247 [2019-11-07 00:54:28,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:28,201 INFO L462 AbstractCegarLoop]: Abstraction has 19800 states and 28178 transitions. [2019-11-07 00:54:28,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:28,201 INFO L276 IsEmpty]: Start isEmpty. Operand 19800 states and 28178 transitions. [2019-11-07 00:54:28,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2019-11-07 00:54:28,218 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:28,219 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:28,219 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:28,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:28,219 INFO L82 PathProgramCache]: Analyzing trace with hash -192251923, now seen corresponding path program 1 times [2019-11-07 00:54:28,220 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:28,220 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470166430] [2019-11-07 00:54:28,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:28,438 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-11-07 00:54:28,439 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470166430] [2019-11-07 00:54:28,439 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:28,439 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 00:54:28,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247712708] [2019-11-07 00:54:28,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 00:54:28,440 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:28,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 00:54:28,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:54:28,441 INFO L87 Difference]: Start difference. First operand 19800 states and 28178 transitions. Second operand 8 states.