/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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec7_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:24:40,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:24:40,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:24:40,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:24:40,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:24:40,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:24:40,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:24:40,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:24:40,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:24:40,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:24:40,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:24:40,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:24:40,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:24:40,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:24:40,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:24:40,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:24:40,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:24:40,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:24:40,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:24:40,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:24:40,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:24:40,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:24:40,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:24:40,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:24:40,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:24:40,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:24:40,906 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:24:40,907 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:24:40,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:24:40,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:24:40,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:24:40,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:24:40,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:24:40,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:24:40,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:24:40,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:24:40,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:24:40,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:24:40,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:24:40,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:24:40,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:24:40,924 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 04:24:40,946 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:24:40,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:24:40,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:24:40,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:24:40,948 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:24:40,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:24:40,951 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:24:40,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:24:40,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:24:40,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:24:40,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:24:40,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:24:40,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:24:40,954 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:24:40,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:24:40,954 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:24:40,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:24:40,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:24:40,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:24:40,955 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:24:40,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:24:40,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:24:40,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:24:40,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:24:40,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:24:40,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:24:40,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:24:40,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:24:40,957 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:24:41,287 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:24:41,304 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:24:41,307 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:24:41,309 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:24:41,309 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:24:41,310 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product32.cil.c [2019-11-07 04:24:41,385 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28fdf17c3/d8398c07d39649dc8d6fee820e43d09e/FLAGd40d453ac [2019-11-07 04:24:41,998 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:24:42,001 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product32.cil.c [2019-11-07 04:24:42,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28fdf17c3/d8398c07d39649dc8d6fee820e43d09e/FLAGd40d453ac [2019-11-07 04:24:42,193 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28fdf17c3/d8398c07d39649dc8d6fee820e43d09e [2019-11-07 04:24:42,201 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:24:42,203 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:24:42,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:24:42,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:24:42,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:24:42,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:24:42" (1/1) ... [2019-11-07 04:24:42,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f99a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:42, skipping insertion in model container [2019-11-07 04:24:42,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:24:42" (1/1) ... [2019-11-07 04:24:42,219 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:24:42,294 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:24:43,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:24:43,067 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:24:43,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:24:43,423 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:24:43,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:43 WrapperNode [2019-11-07 04:24:43,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:24:43,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:24:43,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:24:43,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:24:43,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:43" (1/1) ... [2019-11-07 04:24:43,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:43" (1/1) ... [2019-11-07 04:24:43,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:43" (1/1) ... [2019-11-07 04:24:43,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:43" (1/1) ... [2019-11-07 04:24:43,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:43" (1/1) ... [2019-11-07 04:24:43,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:43" (1/1) ... [2019-11-07 04:24:43,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:43" (1/1) ... [2019-11-07 04:24:43,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:24:43,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:24:43,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:24:43,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:24:43,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:43" (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 04:24:43,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:24:43,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:24:43,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:24:43,679 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:24:43,679 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 04:24:43,679 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 04:24:43,679 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:24:43,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:24:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:24:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:24:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:24:43,682 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:24:43,682 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:24:43,683 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:24:43,683 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:24:43,683 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:24:43,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:24:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:24:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:24:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:24:43,686 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 04:24:43,687 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:24:43,687 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:24:43,687 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 04:24:43,687 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:24:43,687 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 04:24:43,688 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:24:43,688 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:24:43,688 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:24:43,689 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:24:43,690 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:24:43,690 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:24:43,690 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:24:43,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:24:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:24:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:24:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 04:24:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:24:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:24:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-11-07 04:24:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:24:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:24:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:24:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:24:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:24:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:24:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:24:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:24:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:24:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:24:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:24:43,693 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:24:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:24:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:24:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:24:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:24:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:24:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:24:43,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:24:43,695 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:24:43,695 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:24:43,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:24:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:24:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:24:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:24:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:24:43,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:24:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:24:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:24:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:24:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:24:43,697 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:24:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:24:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:24:43,699 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:24:43,699 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:24:43,699 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:24:43,699 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:24:43,700 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:24:43,700 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:24:43,700 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:24:43,701 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:24:43,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:24:43,701 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:24:43,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:24:43,701 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:24:43,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:24:43,702 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:24:43,703 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:24:43,703 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:24:43,703 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:24:43,703 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:24:43,703 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:24:43,703 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:24:43,704 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:24:43,704 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:24:43,704 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:24:43,704 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:24:43,704 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:24:43,704 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:24:43,705 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:24:43,705 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:24:43,705 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:24:43,705 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:24:43,705 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:24:43,705 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:24:43,705 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:24:43,706 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:24:43,706 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:24:43,706 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:24:43,706 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:24:43,706 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:24:43,706 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:24:43,706 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:24:43,707 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:24:43,707 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:24:43,707 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:24:43,707 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 04:24:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:24:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:24:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:24:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:24:43,708 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:24:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:24:43,709 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:24:43,710 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:24:43,710 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:24:43,710 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:24:43,710 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:24:43,710 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:24:43,710 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:24:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:24:43,711 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:24:43,712 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:24:43,715 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:24:43,715 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:24:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:24:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 04:24:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 04:24:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:24:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:24:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:24:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:24:43,718 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:24:43,725 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:24:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:24:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:24:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:24:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:24:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:24:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:24:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:24:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:24:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:24:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:24:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:24:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:24:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:24:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:24:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:24:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:24:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:24:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:24:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:24:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:24:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:24:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:24:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:24:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:24:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:24:43,729 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:24:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:24:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:24:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 04:24:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:24:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:24:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:24:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:24:43,730 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 04:24:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 04:24:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:24:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 04:24:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-11-07 04:24:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:24:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:24:43,731 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:24:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:24:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:24:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:24:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:24:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:24:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:24:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:24:43,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:24:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:24:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:24:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:24:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:24:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:24:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:24:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:24:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:24:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:24:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:24:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:24:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:24:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:24:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:24:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:24:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:24:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:24:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 04:24:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:24:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:24:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:24:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:24:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:24:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:24:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:24:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:24:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:24:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:24:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:24:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:24:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:24:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:24:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:24:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:24:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:24:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:24:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:24:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:24:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:24:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:24:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:24:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:24:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:24:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:24:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:24:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:24:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:24:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:24:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:24:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:24:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:24:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:24:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:24:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:24:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:24:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:24:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:24:48,192 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:24:48,193 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:24:48,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:24:48 BoogieIcfgContainer [2019-11-07 04:24:48,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:24:48,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:24:48,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:24:48,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:24:48,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:24:42" (1/3) ... [2019-11-07 04:24:48,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b64731a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:24:48, skipping insertion in model container [2019-11-07 04:24:48,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:43" (2/3) ... [2019-11-07 04:24:48,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b64731a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:24:48, skipping insertion in model container [2019-11-07 04:24:48,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:24:48" (3/3) ... [2019-11-07 04:24:48,203 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product32.cil.c [2019-11-07 04:24:48,214 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:24:48,226 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:24:48,239 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:24:48,279 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:24:48,279 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:24:48,280 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:24:48,280 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:24:48,280 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:24:48,283 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:24:48,283 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:24:48,283 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:24:48,325 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states. [2019-11-07 04:24:48,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-11-07 04:24:48,357 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:48,359 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:24:48,361 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:48,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:48,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1321734275, now seen corresponding path program 1 times [2019-11-07 04:24:48,378 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:48,378 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588391025] [2019-11-07 04:24:48,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:49,202 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:24:49,203 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588391025] [2019-11-07 04:24:49,204 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:49,205 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:24:49,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045822677] [2019-11-07 04:24:49,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:24:49,214 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:49,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:24:49,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:24:49,231 INFO L87 Difference]: Start difference. First operand 440 states. Second operand 2 states. [2019-11-07 04:24:49,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:49,296 INFO L93 Difference]: Finished difference Result 620 states and 741 transitions. [2019-11-07 04:24:49,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:24:49,298 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 152 [2019-11-07 04:24:49,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:49,319 INFO L225 Difference]: With dead ends: 620 [2019-11-07 04:24:49,320 INFO L226 Difference]: Without dead ends: 392 [2019-11-07 04:24:49,326 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 04:24:49,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-11-07 04:24:49,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2019-11-07 04:24:49,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 392 states. [2019-11-07 04:24:49,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 463 transitions. [2019-11-07 04:24:49,468 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 463 transitions. Word has length 152 [2019-11-07 04:24:49,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:49,472 INFO L462 AbstractCegarLoop]: Abstraction has 392 states and 463 transitions. [2019-11-07 04:24:49,472 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:24:49,473 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 463 transitions. [2019-11-07 04:24:49,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-11-07 04:24:49,481 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:49,481 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:24:49,481 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:49,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:49,482 INFO L82 PathProgramCache]: Analyzing trace with hash -397632677, now seen corresponding path program 1 times [2019-11-07 04:24:49,482 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:49,483 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810675885] [2019-11-07 04:24:49,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:49,702 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:24:49,703 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810675885] [2019-11-07 04:24:49,703 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:49,703 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:24:49,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563670757] [2019-11-07 04:24:49,705 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:24:49,706 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:49,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:24:49,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:24:49,706 INFO L87 Difference]: Start difference. First operand 392 states and 463 transitions. Second operand 3 states. [2019-11-07 04:24:49,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:49,774 INFO L93 Difference]: Finished difference Result 605 states and 706 transitions. [2019-11-07 04:24:49,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:24:49,775 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-11-07 04:24:49,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:49,787 INFO L225 Difference]: With dead ends: 605 [2019-11-07 04:24:49,787 INFO L226 Difference]: Without dead ends: 394 [2019-11-07 04:24:49,794 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 04:24:49,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2019-11-07 04:24:49,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2019-11-07 04:24:49,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2019-11-07 04:24:49,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 465 transitions. [2019-11-07 04:24:49,846 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 465 transitions. Word has length 153 [2019-11-07 04:24:49,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:49,847 INFO L462 AbstractCegarLoop]: Abstraction has 394 states and 465 transitions. [2019-11-07 04:24:49,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:24:49,847 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 465 transitions. [2019-11-07 04:24:49,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-11-07 04:24:49,850 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:49,851 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:24:49,851 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:49,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:49,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1011197803, now seen corresponding path program 1 times [2019-11-07 04:24:49,852 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:49,852 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135418787] [2019-11-07 04:24:49,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:50,112 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:24:50,112 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135418787] [2019-11-07 04:24:50,113 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:50,113 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:24:50,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014185090] [2019-11-07 04:24:50,116 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:24:50,116 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:50,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:24:50,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:24:50,117 INFO L87 Difference]: Start difference. First operand 394 states and 465 transitions. Second operand 3 states. [2019-11-07 04:24:50,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:50,172 INFO L93 Difference]: Finished difference Result 772 states and 940 transitions. [2019-11-07 04:24:50,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:24:50,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-11-07 04:24:50,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:50,182 INFO L225 Difference]: With dead ends: 772 [2019-11-07 04:24:50,182 INFO L226 Difference]: Without dead ends: 436 [2019-11-07 04:24:50,185 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 04:24:50,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2019-11-07 04:24:50,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 435. [2019-11-07 04:24:50,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2019-11-07 04:24:50,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 536 transitions. [2019-11-07 04:24:50,225 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 536 transitions. Word has length 162 [2019-11-07 04:24:50,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:50,225 INFO L462 AbstractCegarLoop]: Abstraction has 435 states and 536 transitions. [2019-11-07 04:24:50,225 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:24:50,226 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 536 transitions. [2019-11-07 04:24:50,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-11-07 04:24:50,229 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:50,229 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:24:50,230 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:50,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:50,230 INFO L82 PathProgramCache]: Analyzing trace with hash -934147733, now seen corresponding path program 1 times [2019-11-07 04:24:50,230 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:50,230 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230524126] [2019-11-07 04:24:50,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:50,460 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:24:50,460 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230524126] [2019-11-07 04:24:50,461 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:50,462 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:24:50,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199884822] [2019-11-07 04:24:50,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:24:50,463 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:50,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:24:50,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:24:50,464 INFO L87 Difference]: Start difference. First operand 435 states and 536 transitions. Second operand 3 states. [2019-11-07 04:24:50,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:50,512 INFO L93 Difference]: Finished difference Result 892 states and 1148 transitions. [2019-11-07 04:24:50,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:24:50,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2019-11-07 04:24:50,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:50,521 INFO L225 Difference]: With dead ends: 892 [2019-11-07 04:24:50,521 INFO L226 Difference]: Without dead ends: 515 [2019-11-07 04:24:50,523 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 04:24:50,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2019-11-07 04:24:50,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 514. [2019-11-07 04:24:50,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2019-11-07 04:24:50,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 672 transitions. [2019-11-07 04:24:50,572 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 672 transitions. Word has length 163 [2019-11-07 04:24:50,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:50,573 INFO L462 AbstractCegarLoop]: Abstraction has 514 states and 672 transitions. [2019-11-07 04:24:50,574 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:24:50,574 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 672 transitions. [2019-11-07 04:24:50,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-11-07 04:24:50,581 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:50,581 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:24:50,582 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:50,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:50,582 INFO L82 PathProgramCache]: Analyzing trace with hash -424785483, now seen corresponding path program 1 times [2019-11-07 04:24:50,582 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:50,583 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042519238] [2019-11-07 04:24:50,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:50,821 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:24:50,822 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042519238] [2019-11-07 04:24:50,822 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:50,822 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:24:50,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59678255] [2019-11-07 04:24:50,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:24:50,824 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:50,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:24:50,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:24:50,825 INFO L87 Difference]: Start difference. First operand 514 states and 672 transitions. Second operand 3 states. [2019-11-07 04:24:50,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:50,868 INFO L93 Difference]: Finished difference Result 1123 states and 1546 transitions. [2019-11-07 04:24:50,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:24:50,868 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2019-11-07 04:24:50,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:50,873 INFO L225 Difference]: With dead ends: 1123 [2019-11-07 04:24:50,873 INFO L226 Difference]: Without dead ends: 667 [2019-11-07 04:24:50,875 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 04:24:50,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2019-11-07 04:24:50,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 666. [2019-11-07 04:24:50,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 666 states. [2019-11-07 04:24:50,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 932 transitions. [2019-11-07 04:24:50,924 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 932 transitions. Word has length 164 [2019-11-07 04:24:50,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:50,924 INFO L462 AbstractCegarLoop]: Abstraction has 666 states and 932 transitions. [2019-11-07 04:24:50,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:24:50,925 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 932 transitions. [2019-11-07 04:24:50,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-11-07 04:24:50,931 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:50,932 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:24:50,932 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:50,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:50,932 INFO L82 PathProgramCache]: Analyzing trace with hash 2020598056, now seen corresponding path program 1 times [2019-11-07 04:24:50,933 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:50,933 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759958169] [2019-11-07 04:24:50,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:51,978 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:24:51,979 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759958169] [2019-11-07 04:24:51,980 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:51,980 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2019-11-07 04:24:51,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332520225] [2019-11-07 04:24:51,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-11-07 04:24:51,981 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:51,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-11-07 04:24:51,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2019-11-07 04:24:51,983 INFO L87 Difference]: Start difference. First operand 666 states and 932 transitions. Second operand 30 states. [2019-11-07 04:25:03,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:25:03,747 INFO L93 Difference]: Finished difference Result 1163 states and 1551 transitions. [2019-11-07 04:25:03,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-11-07 04:25:03,747 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 166 [2019-11-07 04:25:03,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:25:03,757 INFO L225 Difference]: With dead ends: 1163 [2019-11-07 04:25:03,757 INFO L226 Difference]: Without dead ends: 960 [2019-11-07 04:25:03,760 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=181, Invalid=2171, Unknown=0, NotChecked=0, Total=2352 [2019-11-07 04:25:03,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2019-11-07 04:25:03,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 948. [2019-11-07 04:25:03,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 948 states. [2019-11-07 04:25:03,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1287 transitions. [2019-11-07 04:25:03,830 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1287 transitions. Word has length 166 [2019-11-07 04:25:03,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:25:03,831 INFO L462 AbstractCegarLoop]: Abstraction has 948 states and 1287 transitions. [2019-11-07 04:25:03,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-11-07 04:25:03,831 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1287 transitions. [2019-11-07 04:25:03,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-11-07 04:25:03,836 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:25:03,836 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:25:03,837 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:25:03,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:25:03,837 INFO L82 PathProgramCache]: Analyzing trace with hash 70872551, now seen corresponding path program 1 times [2019-11-07 04:25:03,837 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:25:03,838 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308145727] [2019-11-07 04:25:03,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:25:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:25:04,080 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:25:04,081 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308145727] [2019-11-07 04:25:04,081 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:25:04,081 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 04:25:04,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957989625] [2019-11-07 04:25:04,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 04:25:04,082 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:25:04,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 04:25:04,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:25:04,083 INFO L87 Difference]: Start difference. First operand 948 states and 1287 transitions. Second operand 10 states. [2019-11-07 04:25:04,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:25:04,153 INFO L93 Difference]: Finished difference Result 957 states and 1298 transitions. [2019-11-07 04:25:04,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 04:25:04,153 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 170 [2019-11-07 04:25:04,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:25:04,162 INFO L225 Difference]: With dead ends: 957 [2019-11-07 04:25:04,162 INFO L226 Difference]: Without dead ends: 954 [2019-11-07 04:25:04,163 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:25:04,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2019-11-07 04:25:04,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 954. [2019-11-07 04:25:04,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 954 states. [2019-11-07 04:25:04,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1293 transitions. [2019-11-07 04:25:04,211 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1293 transitions. Word has length 170 [2019-11-07 04:25:04,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:25:04,214 INFO L462 AbstractCegarLoop]: Abstraction has 954 states and 1293 transitions. [2019-11-07 04:25:04,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 04:25:04,215 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1293 transitions. [2019-11-07 04:25:04,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-11-07 04:25:04,219 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:25:04,220 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:25:04,220 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:25:04,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:25:04,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1041453392, now seen corresponding path program 1 times [2019-11-07 04:25:04,221 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:25:04,221 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429814928] [2019-11-07 04:25:04,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:25:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:25:04,697 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:25:04,698 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429814928] [2019-11-07 04:25:04,698 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:25:04,698 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-11-07 04:25:04,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603422691] [2019-11-07 04:25:04,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-07 04:25:04,700 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:25:04,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-07 04:25:04,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2019-11-07 04:25:04,701 INFO L87 Difference]: Start difference. First operand 954 states and 1293 transitions. Second operand 16 states. [2019-11-07 04:25:09,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:25:09,262 INFO L93 Difference]: Finished difference Result 1888 states and 2499 transitions. [2019-11-07 04:25:09,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-07 04:25:09,263 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 172 [2019-11-07 04:25:09,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:25:09,273 INFO L225 Difference]: With dead ends: 1888 [2019-11-07 04:25:09,273 INFO L226 Difference]: Without dead ends: 1680 [2019-11-07 04:25:09,277 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2019-11-07 04:25:09,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2019-11-07 04:25:09,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1619. [2019-11-07 04:25:09,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1619 states. [2019-11-07 04:25:09,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2158 transitions. [2019-11-07 04:25:09,374 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2158 transitions. Word has length 172 [2019-11-07 04:25:09,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:25:09,375 INFO L462 AbstractCegarLoop]: Abstraction has 1619 states and 2158 transitions. [2019-11-07 04:25:09,375 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-07 04:25:09,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2158 transitions. [2019-11-07 04:25:09,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-11-07 04:25:09,381 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:25:09,381 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:25:09,381 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:25:09,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:25:09,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1339166046, now seen corresponding path program 1 times [2019-11-07 04:25:09,382 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:25:09,382 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31492037] [2019-11-07 04:25:09,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:25:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:25:09,945 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-07 04:25:09,945 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31492037] [2019-11-07 04:25:09,946 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320115311] [2019-11-07 04:25:09,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:25:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:25:10,533 INFO L256 TraceCheckSpWp]: Trace formula consists of 3070 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:25:10,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:25:10,666 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:25:10,666 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:25:10,937 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:25:10,938 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1192120799] [2019-11-07 04:25:10,977 INFO L159 IcfgInterpreter]: Started Sifa with 169 locations of interest [2019-11-07 04:25:10,977 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:25:10,985 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:25:10,991 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:25:10,991 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs