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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:11:09,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:11:09,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:11:09,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:11:09,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:11:09,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:11:09,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:11:09,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:11:09,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:11:09,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:11:09,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:11:09,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:11:09,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:11:09,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:11:09,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:11:09,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:11:09,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:11:09,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:11:09,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:11:09,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:11:10,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:11:10,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:11:10,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:11:10,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:11:10,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:11:10,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:11:10,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:11:10,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:11:10,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:11:10,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:11:10,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:11:10,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:11:10,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:11:10,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:11:10,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:11:10,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:11:10,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:11:10,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:11:10,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:11:10,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:11:10,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:11:10,037 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 [2019-10-13 23:11:10,058 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:11:10,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:11:10,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:11:10,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:11:10,061 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:11:10,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:11:10,062 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:11:10,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:11:10,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:11:10,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:11:10,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:11:10,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:11:10,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:11:10,065 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:11:10,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:11:10,065 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:11:10,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:11:10,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:11:10,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:11:10,066 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:11:10,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:11:10,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:11:10,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:11:10,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:11:10,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:11:10,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:11:10,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:11:10,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:11:10,068 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 [2019-10-13 23:11:10,367 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:11:10,381 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:11:10,385 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:11:10,387 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:11:10,387 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:11:10,388 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product20.cil.c [2019-10-13 23:11:10,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf42a762a/f5dda736456a4b0bbab9e1318f8b39d3/FLAGc3d29b61e [2019-10-13 23:11:11,124 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:11:11,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product20.cil.c [2019-10-13 23:11:11,156 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf42a762a/f5dda736456a4b0bbab9e1318f8b39d3/FLAGc3d29b61e [2019-10-13 23:11:11,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf42a762a/f5dda736456a4b0bbab9e1318f8b39d3 [2019-10-13 23:11:11,272 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:11:11,276 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:11:11,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:11,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:11:11,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:11:11,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:11" (1/1) ... [2019-10-13 23:11:11,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a8a69ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:11, skipping insertion in model container [2019-10-13 23:11:11,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:11" (1/1) ... [2019-10-13 23:11:11,296 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:11:11,371 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:11:12,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:12,209 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:11:12,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:12,507 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:11:12,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:12 WrapperNode [2019-10-13 23:11:12,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:12,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:11:12,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:11:12,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:11:12,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:12" (1/1) ... [2019-10-13 23:11:12,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:12" (1/1) ... [2019-10-13 23:11:12,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:12" (1/1) ... [2019-10-13 23:11:12,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:12" (1/1) ... [2019-10-13 23:11:12,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:12" (1/1) ... [2019-10-13 23:11:12,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:12" (1/1) ... [2019-10-13 23:11:12,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:12" (1/1) ... [2019-10-13 23:11:12,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:11:12,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:11:12,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:11:12,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:11:12,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:12" (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 [2019-10-13 23:11:12,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:11:12,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:11:12,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:12,944 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:11:12,945 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:11:12,946 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:11:12,947 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:11:12,947 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:11:12,948 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:11:12,948 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:11:12,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:11:12,949 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:11:12,950 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:11:12,950 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:11:12,950 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:11:12,951 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:11:12,954 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:11:12,954 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:11:12,954 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:11:12,955 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:11:12,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:11:12,955 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:11:12,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:11:12,956 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:11:12,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:11:12,956 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:11:12,957 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:11:12,957 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:11:12,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:11:12,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:11:12,958 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:11:12,958 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:11:12,958 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:11:12,958 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:11:12,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:11:12,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:11:12,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:11:12,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:12,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:12,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:12,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:11:12,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:11:12,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:11:12,961 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:11:12,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:11:12,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:11:12,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:11:12,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:11:12,962 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:11:12,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:11:12,962 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:11:12,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:11:12,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:11:12,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:11:12,963 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:11:12,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:11:12,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:11:12,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:11:12,964 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:11:12,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:11:12,965 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:11:12,966 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:11:12,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:11:12,966 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:11:12,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:12,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:12,967 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:11:12,967 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:11:12,967 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:12,967 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:11:12,967 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:12,968 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:11:12,968 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:11:12,969 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:11:12,969 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:11:12,970 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:11:12,971 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:11:12,971 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:11:12,971 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:11:12,971 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:11:12,972 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:11:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:11:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:11:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:11:12,974 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:11:12,974 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:11:12,975 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:11:12,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:11:12,975 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:11:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:11:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:11:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:11:12,976 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:11:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:11:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 23:11:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:11:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:11:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:11:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:11:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:11:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:11:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:11:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:11:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:11:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:11:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:11:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:11:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:11:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:11:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:11:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:11:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:11:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:11:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:11:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:11:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:11:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:11:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:11:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:11:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:11:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:11:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:11:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:11:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:11:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:11:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:11:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:11:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:11:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:11:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:11:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:11:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:11:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:11:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:11:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:11:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:11:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:11:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:11:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:11:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:11:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:11:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:11:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:11:13,004 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:11:13,004 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:11:13,005 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:11:13,005 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:11:13,005 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:11:13,005 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:11:13,006 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:11:13,006 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:11:13,006 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:11:13,006 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:11:13,006 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:11:13,007 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:11:13,007 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:11:13,013 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:11:13,013 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:11:13,013 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:11:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:11:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:11:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:11:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:11:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:11:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:11:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:11:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:11:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:11:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:11:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:11:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:11:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:11:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:11:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:11:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:11:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:11:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:11:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:11:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:11:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:11:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:11:13,019 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:11:13,019 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:11:13,020 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:11:13,020 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:11:13,020 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:11:13,020 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:11:13,020 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:11:13,021 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:11:13,021 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:11:13,021 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:11:13,021 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:11:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:11:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:11:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:11:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:11:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:11:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:11:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:11:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:11:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:11:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:11:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:11:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:11:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:11:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:11:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:11:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:11:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:11:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:11:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:11:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:11:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:11:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:11:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:11:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:11:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:11:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:11:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:11:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:11:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:11:13,030 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:11:13,030 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:11:13,030 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 23:11:13,030 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:11:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:11:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:11:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:11:13,032 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:11:13,032 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:11:13,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:11:13,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:11:13,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:11:18,000 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:11:18,001 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:11:18,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:18 BoogieIcfgContainer [2019-10-13 23:11:18,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:11:18,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:11:18,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:11:18,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:11:18,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:11:11" (1/3) ... [2019-10-13 23:11:18,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20851b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:18, skipping insertion in model container [2019-10-13 23:11:18,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:12" (2/3) ... [2019-10-13 23:11:18,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20851b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:18, skipping insertion in model container [2019-10-13 23:11:18,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:18" (3/3) ... [2019-10-13 23:11:18,010 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product20.cil.c [2019-10-13 23:11:18,020 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:11:18,030 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:11:18,042 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:11:18,073 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:11:18,073 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:11:18,073 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:11:18,073 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:11:18,074 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:11:18,074 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:11:18,074 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:11:18,074 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:11:18,108 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states. [2019-10-13 23:11:18,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-13 23:11:18,127 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:18,128 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, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:18,130 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:18,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:18,138 INFO L82 PathProgramCache]: Analyzing trace with hash -319733925, now seen corresponding path program 1 times [2019-10-13 23:11:18,151 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:18,151 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011186167] [2019-10-13 23:11:18,152 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:18,152 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:18,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:18,866 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:18,867 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011186167] [2019-10-13 23:11:18,868 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:18,868 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:11:18,868 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894312213] [2019-10-13 23:11:18,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:11:18,874 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:18,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:11:18,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:11:18,891 INFO L87 Difference]: Start difference. First operand 393 states. Second operand 2 states. [2019-10-13 23:11:18,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:18,959 INFO L93 Difference]: Finished difference Result 526 states and 630 transitions. [2019-10-13 23:11:18,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:11:18,961 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 143 [2019-10-13 23:11:18,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:18,991 INFO L225 Difference]: With dead ends: 526 [2019-10-13 23:11:18,991 INFO L226 Difference]: Without dead ends: 345 [2019-10-13 23:11:19,003 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 [2019-10-13 23:11:19,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2019-10-13 23:11:19,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2019-10-13 23:11:19,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2019-10-13 23:11:19,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 409 transitions. [2019-10-13 23:11:19,112 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 409 transitions. Word has length 143 [2019-10-13 23:11:19,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:19,114 INFO L462 AbstractCegarLoop]: Abstraction has 345 states and 409 transitions. [2019-10-13 23:11:19,114 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:11:19,115 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 409 transitions. [2019-10-13 23:11:19,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-13 23:11:19,120 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:19,121 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:19,121 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:19,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:19,121 INFO L82 PathProgramCache]: Analyzing trace with hash -2053047464, now seen corresponding path program 1 times [2019-10-13 23:11:19,122 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:19,122 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839628118] [2019-10-13 23:11:19,122 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:19,122 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:19,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:19,390 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:19,391 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839628118] [2019-10-13 23:11:19,391 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:19,391 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:19,391 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991321346] [2019-10-13 23:11:19,395 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:19,395 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:19,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:19,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:19,396 INFO L87 Difference]: Start difference. First operand 345 states and 409 transitions. Second operand 3 states. [2019-10-13 23:11:19,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:19,457 INFO L93 Difference]: Finished difference Result 511 states and 598 transitions. [2019-10-13 23:11:19,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:19,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-10-13 23:11:19,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:19,462 INFO L225 Difference]: With dead ends: 511 [2019-10-13 23:11:19,462 INFO L226 Difference]: Without dead ends: 347 [2019-10-13 23:11:19,464 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 [2019-10-13 23:11:19,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2019-10-13 23:11:19,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2019-10-13 23:11:19,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-10-13 23:11:19,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 411 transitions. [2019-10-13 23:11:19,496 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 411 transitions. Word has length 144 [2019-10-13 23:11:19,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:19,497 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 411 transitions. [2019-10-13 23:11:19,497 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:19,497 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 411 transitions. [2019-10-13 23:11:19,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-13 23:11:19,501 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:19,501 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] [2019-10-13 23:11:19,502 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:19,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:19,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1769939696, now seen corresponding path program 1 times [2019-10-13 23:11:19,502 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:19,502 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088751707] [2019-10-13 23:11:19,503 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:19,503 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:19,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:19,741 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:19,742 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088751707] [2019-10-13 23:11:19,742 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:19,742 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:19,742 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942894820] [2019-10-13 23:11:19,745 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:19,746 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:19,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:19,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:19,746 INFO L87 Difference]: Start difference. First operand 347 states and 411 transitions. Second operand 3 states. [2019-10-13 23:11:19,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:19,809 INFO L93 Difference]: Finished difference Result 678 states and 832 transitions. [2019-10-13 23:11:19,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:19,809 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-10-13 23:11:19,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:19,816 INFO L225 Difference]: With dead ends: 678 [2019-10-13 23:11:19,816 INFO L226 Difference]: Without dead ends: 389 [2019-10-13 23:11:19,819 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 [2019-10-13 23:11:19,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-10-13 23:11:19,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 388. [2019-10-13 23:11:19,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2019-10-13 23:11:19,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 482 transitions. [2019-10-13 23:11:19,888 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 482 transitions. Word has length 153 [2019-10-13 23:11:19,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:19,892 INFO L462 AbstractCegarLoop]: Abstraction has 388 states and 482 transitions. [2019-10-13 23:11:19,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:19,892 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 482 transitions. [2019-10-13 23:11:19,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 23:11:19,900 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:19,901 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] [2019-10-13 23:11:19,901 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:19,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:19,901 INFO L82 PathProgramCache]: Analyzing trace with hash -788518016, now seen corresponding path program 1 times [2019-10-13 23:11:19,903 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:19,904 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277890628] [2019-10-13 23:11:19,904 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:19,904 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:19,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:20,221 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:20,221 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277890628] [2019-10-13 23:11:20,222 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:20,222 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:20,223 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578678889] [2019-10-13 23:11:20,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:20,224 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:20,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:20,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:20,225 INFO L87 Difference]: Start difference. First operand 388 states and 482 transitions. Second operand 3 states. [2019-10-13 23:11:20,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:20,273 INFO L93 Difference]: Finished difference Result 798 states and 1040 transitions. [2019-10-13 23:11:20,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:20,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-10-13 23:11:20,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:20,280 INFO L225 Difference]: With dead ends: 798 [2019-10-13 23:11:20,280 INFO L226 Difference]: Without dead ends: 468 [2019-10-13 23:11:20,282 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 [2019-10-13 23:11:20,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2019-10-13 23:11:20,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 467. [2019-10-13 23:11:20,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2019-10-13 23:11:20,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 618 transitions. [2019-10-13 23:11:20,315 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 618 transitions. Word has length 154 [2019-10-13 23:11:20,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:20,316 INFO L462 AbstractCegarLoop]: Abstraction has 467 states and 618 transitions. [2019-10-13 23:11:20,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:20,316 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 618 transitions. [2019-10-13 23:11:20,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-13 23:11:20,320 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:20,320 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] [2019-10-13 23:11:20,320 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:20,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:20,321 INFO L82 PathProgramCache]: Analyzing trace with hash 657046625, now seen corresponding path program 1 times [2019-10-13 23:11:20,321 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:20,321 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666629437] [2019-10-13 23:11:20,322 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:20,322 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:20,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:21,153 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:21,154 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666629437] [2019-10-13 23:11:21,154 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:21,154 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-13 23:11:21,155 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434755996] [2019-10-13 23:11:21,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-13 23:11:21,156 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:21,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-13 23:11:21,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-10-13 23:11:21,158 INFO L87 Difference]: Start difference. First operand 467 states and 618 transitions. Second operand 24 states. [2019-10-13 23:11:29,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:29,986 INFO L93 Difference]: Finished difference Result 1049 states and 1338 transitions. [2019-10-13 23:11:29,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-13 23:11:29,994 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 157 [2019-10-13 23:11:29,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:30,000 INFO L225 Difference]: With dead ends: 1049 [2019-10-13 23:11:30,000 INFO L226 Difference]: Without dead ends: 893 [2019-10-13 23:11:30,003 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=272, Invalid=2484, Unknown=0, NotChecked=0, Total=2756 [2019-10-13 23:11:30,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2019-10-13 23:11:30,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 880. [2019-10-13 23:11:30,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2019-10-13 23:11:30,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1114 transitions. [2019-10-13 23:11:30,052 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1114 transitions. Word has length 157 [2019-10-13 23:11:30,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:30,053 INFO L462 AbstractCegarLoop]: Abstraction has 880 states and 1114 transitions. [2019-10-13 23:11:30,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-13 23:11:30,053 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1114 transitions. [2019-10-13 23:11:30,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-13 23:11:30,057 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:30,057 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] [2019-10-13 23:11:30,057 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:30,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:30,058 INFO L82 PathProgramCache]: Analyzing trace with hash 187493591, now seen corresponding path program 1 times [2019-10-13 23:11:30,058 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:30,058 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245310086] [2019-10-13 23:11:30,058 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:30,059 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:30,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:30,422 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:30,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245310086] [2019-10-13 23:11:30,424 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:30,425 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 23:11:30,425 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546878847] [2019-10-13 23:11:30,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:11:30,426 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:30,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:11:30,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:11:30,427 INFO L87 Difference]: Start difference. First operand 880 states and 1114 transitions. Second operand 14 states. [2019-10-13 23:11:34,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:34,143 INFO L93 Difference]: Finished difference Result 1914 states and 2402 transitions. [2019-10-13 23:11:34,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:11:34,144 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 163 [2019-10-13 23:11:34,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:34,157 INFO L225 Difference]: With dead ends: 1914 [2019-10-13 23:11:34,158 INFO L226 Difference]: Without dead ends: 1623 [2019-10-13 23:11:34,160 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-13 23:11:34,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2019-10-13 23:11:34,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1570. [2019-10-13 23:11:34,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1570 states. [2019-10-13 23:11:34,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 1965 transitions. [2019-10-13 23:11:34,295 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 1965 transitions. Word has length 163 [2019-10-13 23:11:34,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:34,297 INFO L462 AbstractCegarLoop]: Abstraction has 1570 states and 1965 transitions. [2019-10-13 23:11:34,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:11:34,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 1965 transitions. [2019-10-13 23:11:34,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-13 23:11:34,303 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:34,304 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, 1, 1, 1, 1] [2019-10-13 23:11:34,304 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:34,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:34,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1447020868, now seen corresponding path program 1 times [2019-10-13 23:11:34,305 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:34,305 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440803076] [2019-10-13 23:11:34,306 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:34,306 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:34,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:34,545 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:34,545 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440803076] [2019-10-13 23:11:34,546 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:34,546 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:34,546 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629575600] [2019-10-13 23:11:34,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:34,547 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:34,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:34,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:34,547 INFO L87 Difference]: Start difference. First operand 1570 states and 1965 transitions. Second operand 3 states. [2019-10-13 23:11:34,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:34,640 INFO L93 Difference]: Finished difference Result 3295 states and 4239 transitions. [2019-10-13 23:11:34,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:34,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2019-10-13 23:11:34,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:34,652 INFO L225 Difference]: With dead ends: 3295 [2019-10-13 23:11:34,652 INFO L226 Difference]: Without dead ends: 1783 [2019-10-13 23:11:34,659 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 [2019-10-13 23:11:34,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2019-10-13 23:11:34,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1781. [2019-10-13 23:11:34,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1781 states. [2019-10-13 23:11:34,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2329 transitions. [2019-10-13 23:11:34,793 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2329 transitions. Word has length 179 [2019-10-13 23:11:34,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:34,794 INFO L462 AbstractCegarLoop]: Abstraction has 1781 states and 2329 transitions. [2019-10-13 23:11:34,794 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:34,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2329 transitions. [2019-10-13 23:11:34,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-13 23:11:34,804 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:34,805 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, 1, 1, 1, 1, 1] [2019-10-13 23:11:34,805 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:34,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:34,806 INFO L82 PathProgramCache]: Analyzing trace with hash 497917420, now seen corresponding path program 1 times [2019-10-13 23:11:34,806 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:34,806 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379244585] [2019-10-13 23:11:34,806 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:34,807 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:34,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:35,243 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:35,244 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379244585] [2019-10-13 23:11:35,244 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:35,244 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:11:35,244 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828298687] [2019-10-13 23:11:35,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:11:35,246 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:35,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:11:35,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:11:35,247 INFO L87 Difference]: Start difference. First operand 1781 states and 2329 transitions. Second operand 12 states. [2019-10-13 23:11:39,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:39,753 INFO L93 Difference]: Finished difference Result 3756 states and 5075 transitions. [2019-10-13 23:11:39,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-13 23:11:39,757 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 180 [2019-10-13 23:11:39,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:39,772 INFO L225 Difference]: With dead ends: 3756 [2019-10-13 23:11:39,772 INFO L226 Difference]: Without dead ends: 2778 [2019-10-13 23:11:39,778 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-13 23:11:39,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2019-10-13 23:11:39,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 2195. [2019-10-13 23:11:39,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2195 states. [2019-10-13 23:11:39,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2195 states to 2195 states and 3046 transitions. [2019-10-13 23:11:39,942 INFO L78 Accepts]: Start accepts. Automaton has 2195 states and 3046 transitions. Word has length 180 [2019-10-13 23:11:39,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:39,944 INFO L462 AbstractCegarLoop]: Abstraction has 2195 states and 3046 transitions. [2019-10-13 23:11:39,944 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:11:39,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2195 states and 3046 transitions. [2019-10-13 23:11:39,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-13 23:11:39,952 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:39,952 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, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:39,952 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:39,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:39,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1271157435, now seen corresponding path program 1 times [2019-10-13 23:11:39,953 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:39,953 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943618124] [2019-10-13 23:11:39,953 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:39,954 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:39,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:40,089 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:40,089 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943618124] [2019-10-13 23:11:40,090 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:40,090 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:40,090 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317836701] [2019-10-13 23:11:40,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:40,091 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:40,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:40,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:40,092 INFO L87 Difference]: Start difference. First operand 2195 states and 3046 transitions. Second operand 3 states. [2019-10-13 23:11:40,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:40,209 INFO L93 Difference]: Finished difference Result 4621 states and 6560 transitions. [2019-10-13 23:11:40,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:40,210 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-10-13 23:11:40,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:40,248 INFO L225 Difference]: With dead ends: 4621 [2019-10-13 23:11:40,249 INFO L226 Difference]: Without dead ends: 2488 [2019-10-13 23:11:40,258 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 [2019-10-13 23:11:40,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2019-10-13 23:11:40,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2487. [2019-10-13 23:11:40,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2487 states. [2019-10-13 23:11:40,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2487 states to 2487 states and 3558 transitions. [2019-10-13 23:11:40,469 INFO L78 Accepts]: Start accepts. Automaton has 2487 states and 3558 transitions. Word has length 181 [2019-10-13 23:11:40,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:40,469 INFO L462 AbstractCegarLoop]: Abstraction has 2487 states and 3558 transitions. [2019-10-13 23:11:40,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:40,470 INFO L276 IsEmpty]: Start isEmpty. Operand 2487 states and 3558 transitions. [2019-10-13 23:11:40,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-13 23:11:40,480 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:40,481 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:40,481 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:40,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:40,482 INFO L82 PathProgramCache]: Analyzing trace with hash -247264241, now seen corresponding path program 1 times [2019-10-13 23:11:40,482 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:40,482 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118624857] [2019-10-13 23:11:40,482 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:40,482 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:40,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:40,752 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:40,752 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118624857] [2019-10-13 23:11:40,752 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:40,753 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:11:40,753 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52204740] [2019-10-13 23:11:40,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:11:40,754 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:40,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:11:40,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:11:40,755 INFO L87 Difference]: Start difference. First operand 2487 states and 3558 transitions. Second operand 12 states. [2019-10-13 23:11:45,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:45,345 INFO L93 Difference]: Finished difference Result 4593 states and 6527 transitions. [2019-10-13 23:11:45,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-13 23:11:45,345 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 183 [2019-10-13 23:11:45,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted.