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_spec9_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:18:03,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:18:03,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:18:03,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:18:03,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:18:03,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:18:03,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:18:03,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:18:03,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:18:03,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:18:03,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:18:03,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:18:03,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:18:03,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:18:03,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:18:03,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:18:03,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:18:03,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:18:03,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:18:03,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:18:03,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:18:03,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:18:03,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:18:03,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:18:03,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:18:03,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:18:03,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:18:03,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:18:03,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:18:03,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:18:03,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:18:03,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:18:03,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:18:03,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:18:03,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:18:03,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:18:03,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:18:03,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:18:03,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:18:03,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:18:03,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:18:03,964 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:18:03,987 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:18:03,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:18:03,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:18:03,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:18:03,990 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:18:03,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:18:03,990 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:18:03,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:18:03,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:18:03,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:18:03,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:18:03,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:18:03,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:18:03,993 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:18:03,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:18:03,994 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:18:03,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:18:03,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:18:03,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:18:03,995 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:18:03,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:18:03,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:18:03,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:18:03,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:18:03,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:18:03,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:18:03,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:18:03,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:18:03,996 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:18:04,312 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:18:04,334 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:18:04,338 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:18:04,340 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:18:04,340 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:18:04,341 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product21.cil.c [2019-10-15 03:18:04,415 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f3fe00af/3e5d00c2217f4d788fa4d67acf2bc7b6/FLAGd19a2a25f [2019-10-15 03:18:05,089 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:18:05,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product21.cil.c [2019-10-15 03:18:05,126 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f3fe00af/3e5d00c2217f4d788fa4d67acf2bc7b6/FLAGd19a2a25f [2019-10-15 03:18:05,267 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f3fe00af/3e5d00c2217f4d788fa4d67acf2bc7b6 [2019-10-15 03:18:05,278 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:18:05,280 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:18:05,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:18:05,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:18:05,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:18:05,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:18:05" (1/1) ... [2019-10-15 03:18:05,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@422b8279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:05, skipping insertion in model container [2019-10-15 03:18:05,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:18:05" (1/1) ... [2019-10-15 03:18:05,296 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:18:05,369 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:18:06,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:18:06,147 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:18:06,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:18:06,387 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:18:06,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:06 WrapperNode [2019-10-15 03:18:06,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:18:06,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:18:06,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:18:06,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:18:06,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:06" (1/1) ... [2019-10-15 03:18:06,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:06" (1/1) ... [2019-10-15 03:18:06,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:06" (1/1) ... [2019-10-15 03:18:06,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:06" (1/1) ... [2019-10-15 03:18:06,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:06" (1/1) ... [2019-10-15 03:18:06,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:06" (1/1) ... [2019-10-15 03:18:06,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:06" (1/1) ... [2019-10-15 03:18:06,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:18:06,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:18:06,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:18:06,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:18:06,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:18:06,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:18:06,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:18:06,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:18:06,638 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:18:06,638 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:18:06,639 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 03:18:06,639 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:18:06,639 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:18:06,639 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 03:18:06,640 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:18:06,640 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:18:06,640 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:18:06,640 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:18:06,640 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:18:06,641 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:18:06,641 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:18:06,641 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:18:06,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:18:06,642 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:18:06,642 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:18:06,642 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:18:06,643 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:18:06,643 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:18:06,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:18:06,644 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:18:06,644 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:18:06,644 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:18:06,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:18:06,644 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:18:06,644 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:18:06,645 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:18:06,645 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:18:06,645 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:18:06,645 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:18:06,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:18:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:18:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:18:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:18:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:18:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:18:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:18:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:18:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:18:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:18:06,647 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:18:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:18:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:18:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:18:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:18:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:18:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:18:06,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:18:06,649 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:18:06,649 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:18:06,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:18:06,649 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:18:06,650 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:18:06,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:18:06,650 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:18:06,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:18:06,650 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:18:06,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:18:06,651 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:18:06,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:18:06,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:18:06,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:18:06,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:18:06,652 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:18:06,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:18:06,652 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:18:06,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:18:06,652 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:18:06,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:18:06,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:18:06,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:18:06,653 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:18:06,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:18:06,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:18:06,654 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:18:06,654 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:18:06,654 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:18:06,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:18:06,655 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:18:06,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-15 03:18:06,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-15 03:18:06,655 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:18:06,655 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:18:06,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:18:06,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:18:06,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:18:06,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:18:06,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:18:06,657 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:18:06,657 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:18:06,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:18:06,657 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:18:06,657 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:18:06,657 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:18:06,658 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:18:06,658 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:18:06,658 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:18:06,658 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:18:06,658 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:18:06,658 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:18:06,659 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:18:06,659 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:18:06,659 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:18:06,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:18:06,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:18:06,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:18:06,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:18:06,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:18:06,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:18:06,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:18:06,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:18:06,661 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:18:06,661 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:18:06,661 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:18:06,661 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:18:06,661 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:18:06,662 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:18:06,662 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:18:06,662 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:18:06,662 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:18:06,662 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:18:06,662 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:18:06,662 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:18:06,663 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:18:06,663 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:18:06,663 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:18:06,663 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:18:06,663 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:18:06,663 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:18:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:18:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:18:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:18:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:18:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:18:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:18:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:18:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:18:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:18:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:18:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:18:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:18:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:18:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:18:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:18:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-15 03:18:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:18:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:18:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 03:18:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 03:18:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:18:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-15 03:18:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:18:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:18:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:18:06,668 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:18:06,668 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:18:06,668 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:18:06,668 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:18:06,668 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:18:06,668 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:18:06,668 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:18:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:18:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:18:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:18:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:18:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:18:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:18:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:18:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:18:06,669 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:18:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:18:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:18:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:18:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:18:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:18:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:18:06,670 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:18:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:18:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:18:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:18:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:18:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:18:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:18:06,671 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:18:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:18:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:18:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:18:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:18:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:18:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:18:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:18:06,672 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:18:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:18:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:18:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:18:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:18:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:18:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:18:06,673 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:18:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:18:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:18:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:18:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:18:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:18:06,674 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:18:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:18:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:18:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:18:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:18:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:18:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:18:06,675 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:18:06,676 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:18:06,676 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:18:06,676 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:18:06,676 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:18:06,676 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:18:06,676 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:18:06,676 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:18:06,677 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:18:06,677 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:18:06,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:18:06,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:18:06,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:18:06,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:18:06,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:18:06,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:18:06,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:18:06,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:18:06,678 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:18:06,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:18:06,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:18:06,678 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:18:06,679 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:18:06,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:18:06,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:18:06,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:18:11,408 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:18:11,408 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:18:11,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:18:11 BoogieIcfgContainer [2019-10-15 03:18:11,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:18:11,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:18:11,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:18:11,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:18:11,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:18:05" (1/3) ... [2019-10-15 03:18:11,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab82752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:18:11, skipping insertion in model container [2019-10-15 03:18:11,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:18:06" (2/3) ... [2019-10-15 03:18:11,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab82752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:18:11, skipping insertion in model container [2019-10-15 03:18:11,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:18:11" (3/3) ... [2019-10-15 03:18:11,419 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product21.cil.c [2019-10-15 03:18:11,429 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:18:11,444 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:18:11,455 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:18:11,505 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:18:11,505 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:18:11,505 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:18:11,505 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:18:11,505 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:18:11,508 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:18:11,508 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:18:11,509 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:18:11,545 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states. [2019-10-15 03:18:11,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-15 03:18:11,561 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:11,562 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:18:11,564 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:11,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:11,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1695513081, now seen corresponding path program 1 times [2019-10-15 03:18:11,586 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:11,587 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212822026] [2019-10-15 03:18:11,587 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:11,587 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:11,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:12,220 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:18:12,221 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212822026] [2019-10-15 03:18:12,222 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:12,223 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:18:12,223 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733606045] [2019-10-15 03:18:12,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:18:12,231 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:12,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:18:12,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:18:12,249 INFO L87 Difference]: Start difference. First operand 396 states. Second operand 2 states. [2019-10-15 03:18:12,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:12,356 INFO L93 Difference]: Finished difference Result 574 states and 683 transitions. [2019-10-15 03:18:12,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:18:12,357 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 121 [2019-10-15 03:18:12,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:12,377 INFO L225 Difference]: With dead ends: 574 [2019-10-15 03:18:12,378 INFO L226 Difference]: Without dead ends: 369 [2019-10-15 03:18:12,384 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:18:12,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2019-10-15 03:18:12,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2019-10-15 03:18:12,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2019-10-15 03:18:12,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 436 transitions. [2019-10-15 03:18:12,470 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 436 transitions. Word has length 121 [2019-10-15 03:18:12,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:12,472 INFO L462 AbstractCegarLoop]: Abstraction has 369 states and 436 transitions. [2019-10-15 03:18:12,472 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:18:12,473 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 436 transitions. [2019-10-15 03:18:12,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-10-15 03:18:12,478 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:12,479 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:18:12,479 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:12,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:12,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1314460509, now seen corresponding path program 1 times [2019-10-15 03:18:12,480 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:12,480 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194993683] [2019-10-15 03:18:12,480 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:12,480 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:12,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:12,816 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:18:12,816 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194993683] [2019-10-15 03:18:12,816 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:12,817 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:12,817 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148968691] [2019-10-15 03:18:12,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:12,821 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:12,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:12,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:12,822 INFO L87 Difference]: Start difference. First operand 369 states and 436 transitions. Second operand 3 states. [2019-10-15 03:18:12,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:12,899 INFO L93 Difference]: Finished difference Result 559 states and 652 transitions. [2019-10-15 03:18:12,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:12,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2019-10-15 03:18:12,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:12,911 INFO L225 Difference]: With dead ends: 559 [2019-10-15 03:18:12,912 INFO L226 Difference]: Without dead ends: 371 [2019-10-15 03:18:12,914 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:12,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2019-10-15 03:18:12,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2019-10-15 03:18:12,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2019-10-15 03:18:12,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 438 transitions. [2019-10-15 03:18:12,953 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 438 transitions. Word has length 122 [2019-10-15 03:18:12,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:12,954 INFO L462 AbstractCegarLoop]: Abstraction has 371 states and 438 transitions. [2019-10-15 03:18:12,954 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:12,954 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 438 transitions. [2019-10-15 03:18:12,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-15 03:18:12,958 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:12,958 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] [2019-10-15 03:18:12,958 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:12,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:12,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1445351550, now seen corresponding path program 1 times [2019-10-15 03:18:12,959 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:12,959 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739917433] [2019-10-15 03:18:12,959 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:12,960 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:12,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:13,105 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:18:13,106 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739917433] [2019-10-15 03:18:13,106 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:13,106 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:13,106 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095158237] [2019-10-15 03:18:13,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:13,107 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:13,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:13,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:13,108 INFO L87 Difference]: Start difference. First operand 371 states and 438 transitions. Second operand 3 states. [2019-10-15 03:18:13,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:13,140 INFO L93 Difference]: Finished difference Result 726 states and 886 transitions. [2019-10-15 03:18:13,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:13,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2019-10-15 03:18:13,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:13,145 INFO L225 Difference]: With dead ends: 726 [2019-10-15 03:18:13,146 INFO L226 Difference]: Without dead ends: 413 [2019-10-15 03:18:13,147 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:13,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-10-15 03:18:13,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 412. [2019-10-15 03:18:13,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2019-10-15 03:18:13,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 509 transitions. [2019-10-15 03:18:13,177 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 509 transitions. Word has length 127 [2019-10-15 03:18:13,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:13,178 INFO L462 AbstractCegarLoop]: Abstraction has 412 states and 509 transitions. [2019-10-15 03:18:13,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:13,178 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 509 transitions. [2019-10-15 03:18:13,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-15 03:18:13,181 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:13,182 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] [2019-10-15 03:18:13,182 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:13,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:13,183 INFO L82 PathProgramCache]: Analyzing trace with hash -305888953, now seen corresponding path program 1 times [2019-10-15 03:18:13,183 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:13,183 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926798528] [2019-10-15 03:18:13,184 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:13,184 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:13,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:13,377 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:18:13,378 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926798528] [2019-10-15 03:18:13,378 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:13,378 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:13,379 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759593442] [2019-10-15 03:18:13,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:13,380 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:13,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:13,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:13,380 INFO L87 Difference]: Start difference. First operand 412 states and 509 transitions. Second operand 3 states. [2019-10-15 03:18:13,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:13,416 INFO L93 Difference]: Finished difference Result 652 states and 789 transitions. [2019-10-15 03:18:13,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:13,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-10-15 03:18:13,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:13,421 INFO L225 Difference]: With dead ends: 652 [2019-10-15 03:18:13,421 INFO L226 Difference]: Without dead ends: 476 [2019-10-15 03:18:13,422 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:13,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2019-10-15 03:18:13,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 475. [2019-10-15 03:18:13,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2019-10-15 03:18:13,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 582 transitions. [2019-10-15 03:18:13,453 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 582 transitions. Word has length 128 [2019-10-15 03:18:13,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:13,454 INFO L462 AbstractCegarLoop]: Abstraction has 475 states and 582 transitions. [2019-10-15 03:18:13,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:13,454 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 582 transitions. [2019-10-15 03:18:13,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2019-10-15 03:18:13,514 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:13,514 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:13,515 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:13,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:13,517 INFO L82 PathProgramCache]: Analyzing trace with hash 989295606, now seen corresponding path program 1 times [2019-10-15 03:18:13,517 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:13,517 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035755068] [2019-10-15 03:18:13,517 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:13,518 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:13,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:13,922 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:13,922 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035755068] [2019-10-15 03:18:13,923 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:13,923 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:18:13,923 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98597387] [2019-10-15 03:18:13,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:18:13,925 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:13,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:18:13,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:18:13,926 INFO L87 Difference]: Start difference. First operand 475 states and 582 transitions. Second operand 12 states. [2019-10-15 03:18:16,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:16,508 INFO L93 Difference]: Finished difference Result 1104 states and 1341 transitions. [2019-10-15 03:18:16,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:18:16,509 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 220 [2019-10-15 03:18:16,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:16,516 INFO L225 Difference]: With dead ends: 1104 [2019-10-15 03:18:16,517 INFO L226 Difference]: Without dead ends: 870 [2019-10-15 03:18:16,519 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-10-15 03:18:16,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2019-10-15 03:18:16,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 861. [2019-10-15 03:18:16,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2019-10-15 03:18:16,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1064 transitions. [2019-10-15 03:18:16,577 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1064 transitions. Word has length 220 [2019-10-15 03:18:16,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:16,578 INFO L462 AbstractCegarLoop]: Abstraction has 861 states and 1064 transitions. [2019-10-15 03:18:16,578 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:18:16,578 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1064 transitions. [2019-10-15 03:18:16,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-10-15 03:18:16,584 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:16,584 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:16,585 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:16,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:16,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1830361522, now seen corresponding path program 1 times [2019-10-15 03:18:16,585 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:16,586 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73743953] [2019-10-15 03:18:16,586 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:16,586 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:16,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:17,020 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 03:18:17,020 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73743953] [2019-10-15 03:18:17,021 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:17,021 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 03:18:17,021 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856208977] [2019-10-15 03:18:17,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 03:18:17,022 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:17,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 03:18:17,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-15 03:18:17,023 INFO L87 Difference]: Start difference. First operand 861 states and 1064 transitions. Second operand 11 states. [2019-10-15 03:18:20,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:20,056 INFO L93 Difference]: Finished difference Result 1528 states and 1828 transitions. [2019-10-15 03:18:20,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:18:20,056 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 222 [2019-10-15 03:18:20,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:20,063 INFO L225 Difference]: With dead ends: 1528 [2019-10-15 03:18:20,064 INFO L226 Difference]: Without dead ends: 1137 [2019-10-15 03:18:20,066 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-15 03:18:20,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2019-10-15 03:18:20,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1126. [2019-10-15 03:18:20,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2019-10-15 03:18:20,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1369 transitions. [2019-10-15 03:18:20,130 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1369 transitions. Word has length 222 [2019-10-15 03:18:20,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:20,131 INFO L462 AbstractCegarLoop]: Abstraction has 1126 states and 1369 transitions. [2019-10-15 03:18:20,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 03:18:20,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1369 transitions. [2019-10-15 03:18:20,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2019-10-15 03:18:20,137 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:20,137 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:20,137 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:20,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:20,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1144993830, now seen corresponding path program 1 times [2019-10-15 03:18:20,138 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:20,138 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19302070] [2019-10-15 03:18:20,138 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:20,139 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:20,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:20,357 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:20,358 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19302070] [2019-10-15 03:18:20,358 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:20,358 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:20,359 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862225770] [2019-10-15 03:18:20,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:20,360 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:20,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:20,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:20,361 INFO L87 Difference]: Start difference. First operand 1126 states and 1369 transitions. Second operand 3 states. [2019-10-15 03:18:20,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:20,476 INFO L93 Difference]: Finished difference Result 2358 states and 2959 transitions. [2019-10-15 03:18:20,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:20,476 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 242 [2019-10-15 03:18:20,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:20,484 INFO L225 Difference]: With dead ends: 2358 [2019-10-15 03:18:20,484 INFO L226 Difference]: Without dead ends: 1290 [2019-10-15 03:18:20,488 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:20,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2019-10-15 03:18:20,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1288. [2019-10-15 03:18:20,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1288 states. [2019-10-15 03:18:20,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1647 transitions. [2019-10-15 03:18:20,563 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1647 transitions. Word has length 242 [2019-10-15 03:18:20,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:20,564 INFO L462 AbstractCegarLoop]: Abstraction has 1288 states and 1647 transitions. [2019-10-15 03:18:20,564 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:20,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1647 transitions. [2019-10-15 03:18:20,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-15 03:18:20,571 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:20,571 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:20,571 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:20,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:20,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1845417953, now seen corresponding path program 1 times [2019-10-15 03:18:20,572 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:20,572 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034384719] [2019-10-15 03:18:20,573 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:20,573 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:20,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:20,859 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:20,860 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034384719] [2019-10-15 03:18:20,860 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:20,860 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:20,861 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247850803] [2019-10-15 03:18:20,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:20,864 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:20,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:20,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:20,866 INFO L87 Difference]: Start difference. First operand 1288 states and 1647 transitions. Second operand 3 states. [2019-10-15 03:18:20,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:20,968 INFO L93 Difference]: Finished difference Result 2824 states and 3761 transitions. [2019-10-15 03:18:20,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:20,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2019-10-15 03:18:20,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:20,989 INFO L225 Difference]: With dead ends: 2824 [2019-10-15 03:18:20,990 INFO L226 Difference]: Without dead ends: 1594 [2019-10-15 03:18:21,000 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:21,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1594 states. [2019-10-15 03:18:21,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1594 to 1592. [2019-10-15 03:18:21,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1592 states. [2019-10-15 03:18:21,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 2167 transitions. [2019-10-15 03:18:21,135 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 2167 transitions. Word has length 243 [2019-10-15 03:18:21,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:21,136 INFO L462 AbstractCegarLoop]: Abstraction has 1592 states and 2167 transitions. [2019-10-15 03:18:21,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:21,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 2167 transitions. [2019-10-15 03:18:21,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-15 03:18:21,150 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:21,151 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:21,152 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:21,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:21,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1408386709, now seen corresponding path program 1 times [2019-10-15 03:18:21,153 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:21,153 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766375943] [2019-10-15 03:18:21,153 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:21,153 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:21,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:21,564 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-15 03:18:21,565 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766375943] [2019-10-15 03:18:21,566 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:21,566 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:21,568 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765298527] [2019-10-15 03:18:21,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:21,570 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:21,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:21,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:21,571 INFO L87 Difference]: Start difference. First operand 1592 states and 2167 transitions. Second operand 3 states. [2019-10-15 03:18:21,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:21,709 INFO L93 Difference]: Finished difference Result 3712 states and 5281 transitions. [2019-10-15 03:18:21,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:21,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2019-10-15 03:18:21,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:21,725 INFO L225 Difference]: With dead ends: 3712 [2019-10-15 03:18:21,725 INFO L226 Difference]: Without dead ends: 2178 [2019-10-15 03:18:21,732 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:21,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2178 states. [2019-10-15 03:18:21,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2178 to 2176. [2019-10-15 03:18:21,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2176 states. [2019-10-15 03:18:21,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 3159 transitions. [2019-10-15 03:18:21,880 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 3159 transitions. Word has length 249 [2019-10-15 03:18:21,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:21,881 INFO L462 AbstractCegarLoop]: Abstraction has 2176 states and 3159 transitions. [2019-10-15 03:18:21,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:21,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 3159 transitions. [2019-10-15 03:18:21,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-10-15 03:18:21,895 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:21,895 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:21,895 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:21,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:21,896 INFO L82 PathProgramCache]: Analyzing trace with hash -254876080, now seen corresponding path program 1 times [2019-10-15 03:18:21,896 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:21,896 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734169878] [2019-10-15 03:18:21,897 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:21,897 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:21,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:22,143 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-15 03:18:22,143 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734169878] [2019-10-15 03:18:22,144 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:22,145 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:22,145 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946736398] [2019-10-15 03:18:22,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:22,146 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:22,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:22,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:22,147 INFO L87 Difference]: Start difference. First operand 2176 states and 3159 transitions. Second operand 3 states. [2019-10-15 03:18:22,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:22,302 INFO L93 Difference]: Finished difference Result 5416 states and 8177 transitions. [2019-10-15 03:18:22,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:22,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 250 [2019-10-15 03:18:22,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:22,330 INFO L225 Difference]: With dead ends: 5416 [2019-10-15 03:18:22,330 INFO L226 Difference]: Without dead ends: 3298 [2019-10-15 03:18:22,350 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:22,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3298 states. [2019-10-15 03:18:22,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3298 to 3296. [2019-10-15 03:18:22,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3296 states. [2019-10-15 03:18:22,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3296 states to 3296 states and 5047 transitions. [2019-10-15 03:18:22,697 INFO L78 Accepts]: Start accepts. Automaton has 3296 states and 5047 transitions. Word has length 250 [2019-10-15 03:18:22,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:22,698 INFO L462 AbstractCegarLoop]: Abstraction has 3296 states and 5047 transitions. [2019-10-15 03:18:22,698 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:22,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3296 states and 5047 transitions. [2019-10-15 03:18:22,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-15 03:18:22,726 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:22,727 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:22,728 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:22,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:22,728 INFO L82 PathProgramCache]: Analyzing trace with hash 857005796, now seen corresponding path program 1 times [2019-10-15 03:18:22,729 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:22,729 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588829103] [2019-10-15 03:18:22,730 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:22,730 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:22,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:22,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:23,006 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:23,007 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588829103] [2019-10-15 03:18:23,007 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:23,007 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:23,007 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404541173] [2019-10-15 03:18:23,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:23,008 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:23,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:23,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:23,009 INFO L87 Difference]: Start difference. First operand 3296 states and 5047 transitions. Second operand 3 states. [2019-10-15 03:18:23,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:23,265 INFO L93 Difference]: Finished difference Result 8680 states and 13681 transitions. [2019-10-15 03:18:23,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:23,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2019-10-15 03:18:23,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:23,302 INFO L225 Difference]: With dead ends: 8680 [2019-10-15 03:18:23,303 INFO L226 Difference]: Without dead ends: 5442 [2019-10-15 03:18:23,318 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:23,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5442 states. [2019-10-15 03:18:23,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5442 to 5440. [2019-10-15 03:18:23,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5440 states. [2019-10-15 03:18:23,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 8631 transitions. [2019-10-15 03:18:23,671 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 8631 transitions. Word has length 246 [2019-10-15 03:18:23,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:23,672 INFO L462 AbstractCegarLoop]: Abstraction has 5440 states and 8631 transitions. [2019-10-15 03:18:23,672 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:23,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 8631 transitions. [2019-10-15 03:18:23,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-10-15 03:18:23,713 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:23,714 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:23,714 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:23,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:23,714 INFO L82 PathProgramCache]: Analyzing trace with hash 103615457, now seen corresponding path program 1 times [2019-10-15 03:18:23,715 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:23,715 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046006321] [2019-10-15 03:18:23,715 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:23,715 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:23,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:24,045 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:24,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046006321] [2019-10-15 03:18:24,045 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:24,045 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:24,046 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903335358] [2019-10-15 03:18:24,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:24,047 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:24,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:24,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:24,047 INFO L87 Difference]: Start difference. First operand 5440 states and 8631 transitions. Second operand 3 states. [2019-10-15 03:18:24,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:24,490 INFO L93 Difference]: Finished difference Result 14920 states and 24113 transitions. [2019-10-15 03:18:24,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:24,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2019-10-15 03:18:24,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:24,583 INFO L225 Difference]: With dead ends: 14920 [2019-10-15 03:18:24,583 INFO L226 Difference]: Without dead ends: 9538 [2019-10-15 03:18:24,613 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:24,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9538 states. [2019-10-15 03:18:25,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9538 to 9536. [2019-10-15 03:18:25,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9536 states. [2019-10-15 03:18:25,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9536 states to 9536 states and 15415 transitions. [2019-10-15 03:18:25,277 INFO L78 Accepts]: Start accepts. Automaton has 9536 states and 15415 transitions. Word has length 247 [2019-10-15 03:18:25,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:25,279 INFO L462 AbstractCegarLoop]: Abstraction has 9536 states and 15415 transitions. [2019-10-15 03:18:25,279 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:25,279 INFO L276 IsEmpty]: Start isEmpty. Operand 9536 states and 15415 transitions. [2019-10-15 03:18:25,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-15 03:18:25,336 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:25,337 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:25,337 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:25,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:25,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1629168412, now seen corresponding path program 1 times [2019-10-15 03:18:25,338 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:25,338 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029996300] [2019-10-15 03:18:25,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:25,339 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:25,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:26,015 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-10-15 03:18:26,016 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029996300] [2019-10-15 03:18:26,016 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433579739] [2019-10-15 03:18:26,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:18:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:26,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 3450 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:18:26,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:18:27,040 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2019-10-15 03:18:27,040 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:18:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:27,487 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2094571999] [2019-10-15 03:18:27,522 INFO L162 IcfgInterpreter]: Started Sifa with 199 locations of interest [2019-10-15 03:18:27,522 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:18:27,529 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:18:27,538 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:18:27,539 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs