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_spec6_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:15:42,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:15:42,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:15:42,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:15:42,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:15:42,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:15:42,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:15:42,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:15:42,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:15:42,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:15:42,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:15:42,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:15:42,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:15:42,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:15:42,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:15:42,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:15:42,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:15:42,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:15:42,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:15:42,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:15:42,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:15:42,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:15:42,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:15:42,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:15:42,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:15:42,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:15:42,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:15:42,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:15:42,951 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:15:42,952 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:15:42,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:15:42,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:15:42,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:15:42,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:15:42,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:15:42,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:15:42,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:15:42,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:15:42,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:15:42,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:15:42,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:15:42,962 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:15:42,984 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:15:42,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:15:42,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:15:42,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:15:42,989 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:15:42,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:15:42,990 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:15:42,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:15:42,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:15:42,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:15:42,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:15:42,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:15:42,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:15:42,991 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:15:42,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:15:42,992 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:15:42,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:15:42,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:15:42,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:15:42,993 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:15:42,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:15:42,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:42,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:15:42,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:15:42,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:15:42,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:15:42,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:15:42,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:15:42,995 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 [2019-10-15 03:15:43,323 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:15:43,337 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:15:43,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:15:43,343 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:15:43,343 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:15:43,344 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product16.cil.c [2019-10-15 03:15:43,408 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f18696d5a/6c187caa1bfd4a31be86ac8e95f9234f/FLAG372b322bd [2019-10-15 03:15:43,973 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:15:43,976 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product16.cil.c [2019-10-15 03:15:44,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f18696d5a/6c187caa1bfd4a31be86ac8e95f9234f/FLAG372b322bd [2019-10-15 03:15:44,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f18696d5a/6c187caa1bfd4a31be86ac8e95f9234f [2019-10-15 03:15:44,205 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:15:44,207 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:15:44,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:44,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:15:44,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:15:44,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:44" (1/1) ... [2019-10-15 03:15:44,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c564556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:44, skipping insertion in model container [2019-10-15 03:15:44,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:44" (1/1) ... [2019-10-15 03:15:44,230 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:15:44,320 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:15:45,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:45,117 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:15:45,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:45,395 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:15:45,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:45 WrapperNode [2019-10-15 03:15:45,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:45,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:15:45,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:15:45,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:15:45,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:45" (1/1) ... [2019-10-15 03:15:45,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:45" (1/1) ... [2019-10-15 03:15:45,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:45" (1/1) ... [2019-10-15 03:15:45,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:45" (1/1) ... [2019-10-15 03:15:45,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:45" (1/1) ... [2019-10-15 03:15:45,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:45" (1/1) ... [2019-10-15 03:15:45,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:45" (1/1) ... [2019-10-15 03:15:45,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:15:45,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:15:45,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:15:45,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:15:45,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:45,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:15:45,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:15:45,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:45,783 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:15:45,784 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:15:45,785 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:45,786 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:15:45,786 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:45,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:15:45,787 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:15:45,787 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:15:45,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:15:45,789 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:15:45,789 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:15:45,790 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:15:45,790 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:15:45,793 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:15:45,794 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:15:45,794 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:15:45,795 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:15:45,795 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:15:45,797 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:15:45,797 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:15:45,797 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:15:45,798 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:15:45,798 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:15:45,798 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:15:45,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:15:45,799 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:15:45,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:15:45,800 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:15:45,800 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:15:45,800 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:15:45,801 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:15:45,801 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:15:45,801 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:15:45,801 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:15:45,801 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:15:45,802 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:15:45,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:15:45,802 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:15:45,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:15:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:15:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:15:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:15:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:15:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:15:45,804 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:15:45,804 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:15:45,805 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:15:45,806 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:15:45,806 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:15:45,806 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:15:45,806 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:15:45,806 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:15:45,807 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:15:45,807 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:15:45,807 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:15:45,807 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:15:45,808 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:15:45,809 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:15:45,809 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:15:45,809 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:15:45,810 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:15:45,810 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:15:45,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:15:45,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:15:45,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:15:45,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:15:45,812 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:15:45,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:15:45,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:15:45,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:15:45,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:15:45,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:45,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:45,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:45,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:15:45,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:15:45,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:15:45,817 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:15:45,818 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:15:45,818 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:15:45,818 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:15:45,819 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:15:45,819 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:15:45,819 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:15:45,820 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:15:45,820 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:15:45,820 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:15:45,820 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:15:45,821 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:15:45,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:45,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:45,822 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:15:45,822 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:15:45,822 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:15:45,823 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:15:45,823 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:15:45,823 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:15:45,824 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:15:45,824 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:15:45,824 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:15:45,824 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:15:45,825 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:15:45,825 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:15:45,825 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:15:45,825 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:15:45,826 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:15:45,826 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:15:45,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:15:45,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:15:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:15:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:15:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:15:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:15:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:15:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:15:45,829 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:15:45,829 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:15:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:15:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:15:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:15:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:15:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:15:45,832 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:15:45,832 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:15:45,832 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:15:45,833 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:15:45,833 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:15:45,834 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:15:45,834 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:15:45,835 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:15:45,836 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:15:45,844 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:15:45,845 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:15:45,845 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:15:45,846 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:15:45,847 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:15:45,847 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:15:45,847 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:15:45,848 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:15:45,848 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:15:45,849 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:15:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:15:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:15:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:15:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:15:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:15:45,860 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:15:45,861 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:45,861 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:45,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:15:45,861 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:15:45,862 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:15:45,862 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:15:45,862 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:15:45,863 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:15:45,863 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:15:45,863 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:15:45,864 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:15:45,864 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:15:45,865 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:15:45,865 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:15:45,865 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:15:45,865 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:15:45,866 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:15:45,866 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:15:45,866 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:15:45,866 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:15:45,867 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:15:45,867 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:15:45,867 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:15:45,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:15:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:15:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:15:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:15:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:15:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:15:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:15:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:15:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:15:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:15:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:15:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:15:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:15:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:15:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:15:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:15:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:15:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:15:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:15:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:15:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:15:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:15:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:15:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:15:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:15:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:15:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:15:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:15:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:15:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:15:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:45,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:15:45,878 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:45,878 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:45,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:15:45,878 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:15:45,879 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:15:45,879 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:15:45,879 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:15:45,879 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:15:45,879 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:15:45,879 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:15:45,880 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:15:45,880 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:15:45,880 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:15:45,880 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:15:45,880 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:15:45,880 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:15:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:15:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:15:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:15:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:15:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:15:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:15:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:15:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:15:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:15:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:15:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:15:50,831 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:15:50,831 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:15:50,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:50 BoogieIcfgContainer [2019-10-15 03:15:50,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:15:50,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:15:50,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:15:50,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:15:50,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:15:44" (1/3) ... [2019-10-15 03:15:50,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf844d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:50, skipping insertion in model container [2019-10-15 03:15:50,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:45" (2/3) ... [2019-10-15 03:15:50,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf844d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:50, skipping insertion in model container [2019-10-15 03:15:50,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:50" (3/3) ... [2019-10-15 03:15:50,841 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product16.cil.c [2019-10-15 03:15:50,851 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:15:50,860 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:15:50,872 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:15:50,901 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:15:50,902 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:15:50,902 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:15:50,902 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:15:50,902 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:15:50,902 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:15:50,902 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:15:50,902 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:15:50,930 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states. [2019-10-15 03:15:50,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-15 03:15:50,947 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:50,948 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:15:50,950 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:50,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:50,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1316040311, now seen corresponding path program 1 times [2019-10-15 03:15:50,966 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:50,967 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163480050] [2019-10-15 03:15:50,967 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:50,967 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:50,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:51,725 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:51,726 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163480050] [2019-10-15 03:15:51,727 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:51,727 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:15:51,727 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155570602] [2019-10-15 03:15:51,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:15:51,733 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:51,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:15:51,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:51,750 INFO L87 Difference]: Start difference. First operand 355 states. Second operand 2 states. [2019-10-15 03:15:51,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:51,822 INFO L93 Difference]: Finished difference Result 518 states and 614 transitions. [2019-10-15 03:15:51,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:15:51,827 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 136 [2019-10-15 03:15:51,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:51,857 INFO L225 Difference]: With dead ends: 518 [2019-10-15 03:15:51,857 INFO L226 Difference]: Without dead ends: 334 [2019-10-15 03:15:51,863 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:51,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-10-15 03:15:51,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2019-10-15 03:15:51,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2019-10-15 03:15:51,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 395 transitions. [2019-10-15 03:15:51,945 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 395 transitions. Word has length 136 [2019-10-15 03:15:51,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:51,947 INFO L462 AbstractCegarLoop]: Abstraction has 334 states and 395 transitions. [2019-10-15 03:15:51,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:15:51,947 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 395 transitions. [2019-10-15 03:15:51,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-15 03:15:51,952 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:51,953 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:15:51,953 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:51,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:51,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1761776534, now seen corresponding path program 1 times [2019-10-15 03:15:51,954 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:51,954 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716331357] [2019-10-15 03:15:51,954 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:51,954 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:51,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:52,214 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:52,214 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716331357] [2019-10-15 03:15:52,214 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:52,214 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:52,215 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82850660] [2019-10-15 03:15:52,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:52,219 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:52,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:52,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:52,220 INFO L87 Difference]: Start difference. First operand 334 states and 395 transitions. Second operand 3 states. [2019-10-15 03:15:52,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:52,289 INFO L93 Difference]: Finished difference Result 503 states and 585 transitions. [2019-10-15 03:15:52,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:52,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2019-10-15 03:15:52,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:52,295 INFO L225 Difference]: With dead ends: 503 [2019-10-15 03:15:52,295 INFO L226 Difference]: Without dead ends: 336 [2019-10-15 03:15:52,297 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:52,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2019-10-15 03:15:52,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2019-10-15 03:15:52,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2019-10-15 03:15:52,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 397 transitions. [2019-10-15 03:15:52,341 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 397 transitions. Word has length 137 [2019-10-15 03:15:52,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:52,346 INFO L462 AbstractCegarLoop]: Abstraction has 336 states and 397 transitions. [2019-10-15 03:15:52,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:52,346 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 397 transitions. [2019-10-15 03:15:52,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-15 03:15:52,352 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:52,353 INFO L380 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] [2019-10-15 03:15:52,353 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:52,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:52,354 INFO L82 PathProgramCache]: Analyzing trace with hash -853202184, now seen corresponding path program 1 times [2019-10-15 03:15:52,354 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:52,354 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053688298] [2019-10-15 03:15:52,354 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:52,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:52,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:52,562 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:52,562 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053688298] [2019-10-15 03:15:52,563 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:52,563 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:52,563 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646812900] [2019-10-15 03:15:52,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:52,564 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:52,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:52,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:52,565 INFO L87 Difference]: Start difference. First operand 336 states and 397 transitions. Second operand 3 states. [2019-10-15 03:15:52,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:52,599 INFO L93 Difference]: Finished difference Result 654 states and 801 transitions. [2019-10-15 03:15:52,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:52,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-15 03:15:52,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:52,604 INFO L225 Difference]: With dead ends: 654 [2019-10-15 03:15:52,604 INFO L226 Difference]: Without dead ends: 376 [2019-10-15 03:15:52,606 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:52,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2019-10-15 03:15:52,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 375. [2019-10-15 03:15:52,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2019-10-15 03:15:52,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 465 transitions. [2019-10-15 03:15:52,637 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 465 transitions. Word has length 142 [2019-10-15 03:15:52,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:52,637 INFO L462 AbstractCegarLoop]: Abstraction has 375 states and 465 transitions. [2019-10-15 03:15:52,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:52,638 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 465 transitions. [2019-10-15 03:15:52,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-15 03:15:52,645 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:52,645 INFO L380 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] [2019-10-15 03:15:52,646 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:52,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:52,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1581148376, now seen corresponding path program 1 times [2019-10-15 03:15:52,646 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:52,646 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062826466] [2019-10-15 03:15:52,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:52,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:52,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:53,281 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2019-10-15 03:15:53,564 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:15:53,564 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062826466] [2019-10-15 03:15:53,564 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:53,565 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-10-15 03:15:53,565 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489202364] [2019-10-15 03:15:53,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-15 03:15:53,566 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:53,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-15 03:15:53,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2019-10-15 03:15:53,567 INFO L87 Difference]: Start difference. First operand 375 states and 465 transitions. Second operand 22 states. [2019-10-15 03:16:00,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:00,630 INFO L93 Difference]: Finished difference Result 940 states and 1116 transitions. [2019-10-15 03:16:00,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-15 03:16:00,631 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 143 [2019-10-15 03:16:00,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:00,638 INFO L225 Difference]: With dead ends: 940 [2019-10-15 03:16:00,639 INFO L226 Difference]: Without dead ends: 696 [2019-10-15 03:16:00,641 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=233, Invalid=1929, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 03:16:00,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2019-10-15 03:16:00,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 687. [2019-10-15 03:16:00,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 687 states. [2019-10-15 03:16:00,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 813 transitions. [2019-10-15 03:16:00,687 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 813 transitions. Word has length 143 [2019-10-15 03:16:00,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:00,688 INFO L462 AbstractCegarLoop]: Abstraction has 687 states and 813 transitions. [2019-10-15 03:16:00,688 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-15 03:16:00,688 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 813 transitions. [2019-10-15 03:16:00,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-15 03:16:00,691 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:00,691 INFO L380 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] [2019-10-15 03:16:00,692 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:00,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:00,692 INFO L82 PathProgramCache]: Analyzing trace with hash -183241630, now seen corresponding path program 1 times [2019-10-15 03:16:00,693 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:00,693 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100830056] [2019-10-15 03:16:00,693 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:00,693 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:00,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:01,023 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:01,024 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100830056] [2019-10-15 03:16:01,025 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:01,025 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:16:01,025 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814541355] [2019-10-15 03:16:01,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:16:01,027 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:01,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:16:01,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:16:01,028 INFO L87 Difference]: Start difference. First operand 687 states and 813 transitions. Second operand 12 states. [2019-10-15 03:16:03,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:03,735 INFO L93 Difference]: Finished difference Result 1521 states and 1768 transitions. [2019-10-15 03:16:03,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:16:03,736 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 149 [2019-10-15 03:16:03,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:03,750 INFO L225 Difference]: With dead ends: 1521 [2019-10-15 03:16:03,750 INFO L226 Difference]: Without dead ends: 1116 [2019-10-15 03:16:03,753 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-10-15 03:16:03,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2019-10-15 03:16:03,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1046. [2019-10-15 03:16:03,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1046 states. [2019-10-15 03:16:03,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1224 transitions. [2019-10-15 03:16:03,847 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1224 transitions. Word has length 149 [2019-10-15 03:16:03,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:03,848 INFO L462 AbstractCegarLoop]: Abstraction has 1046 states and 1224 transitions. [2019-10-15 03:16:03,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:16:03,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1224 transitions. [2019-10-15 03:16:03,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-15 03:16:03,852 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:03,852 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:03,853 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:03,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:03,854 INFO L82 PathProgramCache]: Analyzing trace with hash -52833044, now seen corresponding path program 1 times [2019-10-15 03:16:03,854 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:03,854 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640481577] [2019-10-15 03:16:03,855 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:03,855 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:03,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:03,995 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:16:03,996 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640481577] [2019-10-15 03:16:03,996 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:03,996 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:03,996 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768247045] [2019-10-15 03:16:03,997 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:03,997 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:03,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:03,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:03,998 INFO L87 Difference]: Start difference. First operand 1046 states and 1224 transitions. Second operand 3 states. [2019-10-15 03:16:04,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:04,064 INFO L93 Difference]: Finished difference Result 2146 states and 2581 transitions. [2019-10-15 03:16:04,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:04,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-10-15 03:16:04,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:04,072 INFO L225 Difference]: With dead ends: 2146 [2019-10-15 03:16:04,072 INFO L226 Difference]: Without dead ends: 1158 [2019-10-15 03:16:04,076 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:04,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2019-10-15 03:16:04,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1156. [2019-10-15 03:16:04,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1156 states. [2019-10-15 03:16:04,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1415 transitions. [2019-10-15 03:16:04,143 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1415 transitions. Word has length 171 [2019-10-15 03:16:04,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:04,144 INFO L462 AbstractCegarLoop]: Abstraction has 1156 states and 1415 transitions. [2019-10-15 03:16:04,144 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:04,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1415 transitions. [2019-10-15 03:16:04,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-15 03:16:04,149 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:04,149 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-15 03:16:04,149 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:04,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:04,150 INFO L82 PathProgramCache]: Analyzing trace with hash 2008380414, now seen corresponding path program 1 times [2019-10-15 03:16:04,150 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:04,150 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549685405] [2019-10-15 03:16:04,150 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:04,151 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:04,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:04,343 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-15 03:16:04,343 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549685405] [2019-10-15 03:16:04,344 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:04,344 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:04,344 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824046539] [2019-10-15 03:16:04,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:04,345 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:04,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:04,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:04,346 INFO L87 Difference]: Start difference. First operand 1156 states and 1415 transitions. Second operand 3 states. [2019-10-15 03:16:04,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:04,422 INFO L93 Difference]: Finished difference Result 2461 states and 3130 transitions. [2019-10-15 03:16:04,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:04,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-10-15 03:16:04,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:04,432 INFO L225 Difference]: With dead ends: 2461 [2019-10-15 03:16:04,432 INFO L226 Difference]: Without dead ends: 1363 [2019-10-15 03:16:04,436 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:04,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2019-10-15 03:16:04,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1361. [2019-10-15 03:16:04,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1361 states. [2019-10-15 03:16:04,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1770 transitions. [2019-10-15 03:16:04,539 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1770 transitions. Word has length 177 [2019-10-15 03:16:04,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:04,539 INFO L462 AbstractCegarLoop]: Abstraction has 1361 states and 1770 transitions. [2019-10-15 03:16:04,539 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:04,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1770 transitions. [2019-10-15 03:16:04,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-15 03:16:04,545 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:04,546 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:04,546 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:04,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:04,546 INFO L82 PathProgramCache]: Analyzing trace with hash -385167538, now seen corresponding path program 1 times [2019-10-15 03:16:04,547 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:04,547 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842481406] [2019-10-15 03:16:04,547 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:04,547 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:04,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:04,944 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:16:04,945 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842481406] [2019-10-15 03:16:04,945 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:04,945 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:16:04,946 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497826676] [2019-10-15 03:16:04,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:16:04,947 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:04,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:16:04,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:16:04,947 INFO L87 Difference]: Start difference. First operand 1361 states and 1770 transitions. Second operand 12 states. [2019-10-15 03:16:09,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:09,675 INFO L93 Difference]: Finished difference Result 3094 states and 4152 transitions. [2019-10-15 03:16:09,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-15 03:16:09,676 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 173 [2019-10-15 03:16:09,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:09,690 INFO L225 Difference]: With dead ends: 3094 [2019-10-15 03:16:09,691 INFO L226 Difference]: Without dead ends: 2237 [2019-10-15 03:16:09,694 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-15 03:16:09,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2019-10-15 03:16:09,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 1755. [2019-10-15 03:16:09,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1755 states. [2019-10-15 03:16:09,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1755 states to 1755 states and 2463 transitions. [2019-10-15 03:16:09,843 INFO L78 Accepts]: Start accepts. Automaton has 1755 states and 2463 transitions. Word has length 173 [2019-10-15 03:16:09,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:09,844 INFO L462 AbstractCegarLoop]: Abstraction has 1755 states and 2463 transitions. [2019-10-15 03:16:09,844 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:16:09,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1755 states and 2463 transitions. [2019-10-15 03:16:09,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-15 03:16:09,852 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:09,852 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:09,852 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:09,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:09,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1025466385, now seen corresponding path program 1 times [2019-10-15 03:16:09,853 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:09,853 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20281046] [2019-10-15 03:16:09,854 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:09,854 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:09,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:10,004 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:16:10,006 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20281046] [2019-10-15 03:16:10,006 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:10,006 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:10,007 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155576641] [2019-10-15 03:16:10,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:10,007 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:10,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:10,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:10,008 INFO L87 Difference]: Start difference. First operand 1755 states and 2463 transitions. Second operand 3 states. [2019-10-15 03:16:10,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:10,110 INFO L93 Difference]: Finished difference Result 3733 states and 5382 transitions. [2019-10-15 03:16:10,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:10,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-10-15 03:16:10,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:10,123 INFO L225 Difference]: With dead ends: 3733 [2019-10-15 03:16:10,124 INFO L226 Difference]: Without dead ends: 2040 [2019-10-15 03:16:10,133 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:10,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states. [2019-10-15 03:16:10,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 2039. [2019-10-15 03:16:10,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2039 states. [2019-10-15 03:16:10,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2963 transitions. [2019-10-15 03:16:10,275 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2963 transitions. Word has length 174 [2019-10-15 03:16:10,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:10,278 INFO L462 AbstractCegarLoop]: Abstraction has 2039 states and 2963 transitions. [2019-10-15 03:16:10,278 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:10,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2963 transitions. [2019-10-15 03:16:10,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-15 03:16:10,290 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:10,290 INFO L380 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:10,291 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:10,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:10,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1895014891, now seen corresponding path program 1 times [2019-10-15 03:16:10,292 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:10,292 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165785518] [2019-10-15 03:16:10,292 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:10,292 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:10,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:10,711 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:16:10,712 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165785518] [2019-10-15 03:16:10,713 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:10,713 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:16:10,714 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521909807] [2019-10-15 03:16:10,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:16:10,716 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:10,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:16:10,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:16:10,717 INFO L87 Difference]: Start difference. First operand 2039 states and 2963 transitions. Second operand 12 states. [2019-10-15 03:16:15,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:15,655 INFO L93 Difference]: Finished difference Result 3899 states and 5562 transitions. [2019-10-15 03:16:15,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-15 03:16:15,656 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 182 [2019-10-15 03:16:15,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:15,672 INFO L225 Difference]: With dead ends: 3899 [2019-10-15 03:16:15,673 INFO L226 Difference]: Without dead ends: 2368 [2019-10-15 03:16:15,684 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-15 03:16:15,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2019-10-15 03:16:15,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 1886. [2019-10-15 03:16:15,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1886 states. [2019-10-15 03:16:15,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1886 states to 1886 states and 2682 transitions. [2019-10-15 03:16:15,832 INFO L78 Accepts]: Start accepts. Automaton has 1886 states and 2682 transitions. Word has length 182 [2019-10-15 03:16:15,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:15,833 INFO L462 AbstractCegarLoop]: Abstraction has 1886 states and 2682 transitions. [2019-10-15 03:16:15,833 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:16:15,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1886 states and 2682 transitions. [2019-10-15 03:16:15,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-15 03:16:15,851 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:15,851 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:15,851 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:15,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:15,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1992074431, now seen corresponding path program 1 times [2019-10-15 03:16:15,852 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:15,852 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933407746] [2019-10-15 03:16:15,853 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:15,853 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:15,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat