java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:59:56,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:59:56,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:59:56,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:59:56,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:59:56,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:59:56,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:59:56,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:59:56,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:59:56,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:59:56,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:59:56,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:59:56,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:59:56,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:59:56,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:59:56,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:59:56,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:59:56,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:59:56,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:59:56,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:59:56,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:59:56,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:59:56,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:59:56,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:59:56,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:59:56,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:59:56,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:59:56,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:59:56,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:59:56,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:59:56,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:59:56,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:59:56,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:59:56,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:59:56,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:59:56,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:59:56,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:59:56,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:59:56,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:59:56,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:59:56,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:59:56,274 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 [2019-10-07 14:59:56,306 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:59:56,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:59:56,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:59:56,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:59:56,312 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:59:56,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:59:56,313 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:59:56,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:59:56,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:59:56,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:59:56,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:59:56,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:59:56,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:59:56,314 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:59:56,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:59:56,315 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:59:56,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:59:56,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:59:56,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:59:56,315 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:59:56,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:59:56,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:59:56,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:59:56,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:59:56,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:59:56,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:59:56,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:59:56,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:59:56,318 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 [2019-10-07 14:59:56,601 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:59:56,619 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:59:56,622 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:59:56,625 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:59:56,625 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:59:56,626 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product15.cil.c [2019-10-07 14:59:56,711 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/517ad4a4f/12ae0da37015454bb551c0f22e0bb147/FLAG9949d366e [2019-10-07 14:59:57,362 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:59:57,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product15.cil.c [2019-10-07 14:59:57,385 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/517ad4a4f/12ae0da37015454bb551c0f22e0bb147/FLAG9949d366e [2019-10-07 14:59:57,572 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/517ad4a4f/12ae0da37015454bb551c0f22e0bb147 [2019-10-07 14:59:57,582 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:59:57,584 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:59:57,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:59:57,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:59:57,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:59:57,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:59:57" (1/1) ... [2019-10-07 14:59:57,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2e6592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:57, skipping insertion in model container [2019-10-07 14:59:57,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:59:57" (1/1) ... [2019-10-07 14:59:57,600 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:59:57,683 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:59:58,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:59:58,474 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:59:58,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:59:58,740 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:59:58,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:58 WrapperNode [2019-10-07 14:59:58,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:59:58,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:59:58,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:59:58,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:59:58,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:58" (1/1) ... [2019-10-07 14:59:58,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:58" (1/1) ... [2019-10-07 14:59:58,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:58" (1/1) ... [2019-10-07 14:59:58,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:58" (1/1) ... [2019-10-07 14:59:58,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:58" (1/1) ... [2019-10-07 14:59:58,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:58" (1/1) ... [2019-10-07 14:59:58,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:58" (1/1) ... [2019-10-07 14:59:58,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:59:58,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:59:58,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:59:58,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:59:58,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:58" (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 [2019-10-07 14:59:59,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:59:59,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:59:59,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:59:59,002 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:59:59,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:59:59,002 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:59:59,003 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:59:59,003 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:59:59,003 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:59:59,003 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 14:59:59,003 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-07 14:59:59,004 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:59:59,004 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:59:59,004 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:59:59,004 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:59:59,005 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:59:59,005 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:59:59,005 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:59:59,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:59:59,006 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:59:59,006 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:59:59,006 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:59:59,006 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:59:59,007 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:59:59,007 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:59:59,007 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:59:59,007 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:59:59,007 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:59:59,008 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:59:59,008 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:59:59,008 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:59:59,008 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:59:59,008 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:59:59,009 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:59:59,009 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:59:59,009 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:59:59,009 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:59:59,009 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:59:59,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:59:59,010 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:59:59,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:59:59,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:59:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:59:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:59:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:59:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:59:59,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:59:59,012 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:59:59,012 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:59:59,012 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:59:59,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:59:59,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:59:59,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:59:59,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:59:59,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:59:59,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:59:59,013 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:59:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:59:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:59:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:59:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:59:59,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:59:59,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:59:59,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:59:59,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:59:59,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:59:59,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:59:59,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:59:59,016 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:59:59,016 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:59:59,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:59:59,016 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:59:59,017 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:59:59,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:59:59,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:59:59,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:59:59,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:59:59,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:59:59,018 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:59:59,018 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:59:59,018 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:59:59,018 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:59:59,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 14:59:59,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 14:59:59,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:59:59,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:59:59,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:59:59,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:59:59,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:59:59,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:59:59,020 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:59:59,020 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:59:59,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:59:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:59:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:59:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:59:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:59:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:59:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:59:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:59:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:59:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:59:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:59:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:59:59,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:59:59,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:59:59,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:59:59,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:59:59,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:59:59,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:59:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:59:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:59:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:59:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:59:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:59:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:59:59,025 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:59:59,025 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:59:59,025 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:59:59,025 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:59:59,025 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:59:59,025 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:59:59,025 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:59:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:59:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:59:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:59:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:59:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:59:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:59:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:59:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:59:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:59:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:59:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:59:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:59:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:59:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:59:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:59:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:59:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:59:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:59:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:59:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:59:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:59:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:59:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:59:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:59:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:59:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:59:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:59:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:59:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:59:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:59:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 14:59:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:59:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:59:59,031 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 14:59:59,031 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-07 14:59:59,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 14:59:59,031 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:59:59,031 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:59:59,031 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:59:59,032 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:59:59,032 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:59:59,032 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:59:59,032 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:59:59,032 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:59:59,032 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:59:59,032 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:59:59,033 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:59:59,033 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:59:59,033 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:59:59,033 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:59:59,033 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:59:59,033 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:59:59,034 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:59:59,034 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:59:59,034 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:59:59,034 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:59:59,034 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:59:59,034 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:59:59,034 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:59:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:59:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:59:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:59:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:59:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:59:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:59:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:59:59,036 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:59:59,036 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:59:59,036 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:59:59,036 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:59:59,036 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:59:59,036 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:59:59,037 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:59:59,037 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:59:59,037 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:59:59,037 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:59:59,037 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:59:59,037 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:59:59,037 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:59:59,037 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:59:59,038 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:59:59,038 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:59:59,038 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:59:59,038 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:59:59,038 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:59:59,038 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:59:59,039 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:59:59,039 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:59:59,039 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:59:59,039 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:59:59,039 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:59:59,039 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:59:59,039 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:59:59,040 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:59:59,040 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:59:59,040 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:59:59,040 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:59:59,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:59:59,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:59:59,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:59:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:59:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:59:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:59:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:59:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:59:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:59:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:59:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:59:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:59:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:59:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:59:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:00:03,753 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:00:03,754 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:00:03,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:00:03 BoogieIcfgContainer [2019-10-07 15:00:03,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:00:03,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:00:03,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:00:03,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:00:03,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:59:57" (1/3) ... [2019-10-07 15:00:03,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5772231a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:00:03, skipping insertion in model container [2019-10-07 15:00:03,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:58" (2/3) ... [2019-10-07 15:00:03,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5772231a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:00:03, skipping insertion in model container [2019-10-07 15:00:03,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:00:03" (3/3) ... [2019-10-07 15:00:03,767 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product15.cil.c [2019-10-07 15:00:03,780 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:00:03,791 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:00:03,804 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:00:03,845 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:00:03,845 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:00:03,846 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:00:03,846 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:00:03,846 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:00:03,846 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:00:03,846 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:00:03,846 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:00:03,883 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states. [2019-10-07 15:00:03,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-07 15:00:03,917 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:03,918 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:03,920 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:03,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:03,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1779818681, now seen corresponding path program 1 times [2019-10-07 15:00:03,937 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:03,938 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:03,938 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:03,938 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:03,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:04,591 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:04,592 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:04,593 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:04,593 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:00:04,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:00:04,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:00:04,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:00:04,616 INFO L87 Difference]: Start difference. First operand 348 states. Second operand 2 states. [2019-10-07 15:00:04,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:04,676 INFO L93 Difference]: Finished difference Result 462 states and 548 transitions. [2019-10-07 15:00:04,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:00:04,678 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 136 [2019-10-07 15:00:04,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:04,698 INFO L225 Difference]: With dead ends: 462 [2019-10-07 15:00:04,698 INFO L226 Difference]: Without dead ends: 306 [2019-10-07 15:00:04,703 INFO L606 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 [2019-10-07 15:00:04,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2019-10-07 15:00:04,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2019-10-07 15:00:04,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-10-07 15:00:04,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 362 transitions. [2019-10-07 15:00:04,782 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 362 transitions. Word has length 136 [2019-10-07 15:00:04,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:04,784 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 362 transitions. [2019-10-07 15:00:04,785 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:00:04,785 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 362 transitions. [2019-10-07 15:00:04,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-07 15:00:04,789 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:04,790 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:04,790 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:04,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:04,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1593772105, now seen corresponding path program 1 times [2019-10-07 15:00:04,791 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:04,791 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:04,791 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:04,791 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:04,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:05,004 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:05,005 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:05,005 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:05,006 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:05,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:05,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:05,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:05,010 INFO L87 Difference]: Start difference. First operand 306 states and 362 transitions. Second operand 3 states. [2019-10-07 15:00:05,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:05,077 INFO L93 Difference]: Finished difference Result 447 states and 519 transitions. [2019-10-07 15:00:05,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:05,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2019-10-07 15:00:05,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:05,082 INFO L225 Difference]: With dead ends: 447 [2019-10-07 15:00:05,082 INFO L226 Difference]: Without dead ends: 308 [2019-10-07 15:00:05,084 INFO L606 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 [2019-10-07 15:00:05,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2019-10-07 15:00:05,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2019-10-07 15:00:05,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2019-10-07 15:00:05,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 364 transitions. [2019-10-07 15:00:05,117 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 364 transitions. Word has length 137 [2019-10-07 15:00:05,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:05,118 INFO L462 AbstractCegarLoop]: Abstraction has 308 states and 364 transitions. [2019-10-07 15:00:05,118 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:05,118 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 364 transitions. [2019-10-07 15:00:05,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-07 15:00:05,123 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:05,123 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:05,124 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:05,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:05,125 INFO L82 PathProgramCache]: Analyzing trace with hash 388168151, now seen corresponding path program 1 times [2019-10-07 15:00:05,125 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:05,126 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:05,126 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:05,126 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:05,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:05,378 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:05,378 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:05,378 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:05,379 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:05,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:05,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:05,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:05,381 INFO L87 Difference]: Start difference. First operand 308 states and 364 transitions. Second operand 3 states. [2019-10-07 15:00:05,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:05,440 INFO L93 Difference]: Finished difference Result 598 states and 735 transitions. [2019-10-07 15:00:05,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:05,440 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-07 15:00:05,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:05,446 INFO L225 Difference]: With dead ends: 598 [2019-10-07 15:00:05,447 INFO L226 Difference]: Without dead ends: 348 [2019-10-07 15:00:05,452 INFO L606 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 [2019-10-07 15:00:05,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-10-07 15:00:05,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 347. [2019-10-07 15:00:05,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-10-07 15:00:05,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 432 transitions. [2019-10-07 15:00:05,502 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 432 transitions. Word has length 146 [2019-10-07 15:00:05,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:05,502 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 432 transitions. [2019-10-07 15:00:05,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:05,503 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 432 transitions. [2019-10-07 15:00:05,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-07 15:00:05,509 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:05,509 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:05,510 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:05,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:05,510 INFO L82 PathProgramCache]: Analyzing trace with hash 566383838, now seen corresponding path program 1 times [2019-10-07 15:00:05,511 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:05,511 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:05,511 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:05,511 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:05,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:05,875 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:05,875 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:05,876 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:05,876 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:05,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:05,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:05,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:05,880 INFO L87 Difference]: Start difference. First operand 347 states and 432 transitions. Second operand 3 states. [2019-10-07 15:00:05,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:05,943 INFO L93 Difference]: Finished difference Result 712 states and 934 transitions. [2019-10-07 15:00:05,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:05,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-10-07 15:00:05,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:05,949 INFO L225 Difference]: With dead ends: 712 [2019-10-07 15:00:05,950 INFO L226 Difference]: Without dead ends: 423 [2019-10-07 15:00:05,952 INFO L606 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 [2019-10-07 15:00:05,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-10-07 15:00:05,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 422. [2019-10-07 15:00:05,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2019-10-07 15:00:05,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 562 transitions. [2019-10-07 15:00:05,986 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 562 transitions. Word has length 147 [2019-10-07 15:00:05,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:05,989 INFO L462 AbstractCegarLoop]: Abstraction has 422 states and 562 transitions. [2019-10-07 15:00:05,989 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:05,989 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 562 transitions. [2019-10-07 15:00:05,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-07 15:00:05,993 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:05,994 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:05,994 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:05,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:05,994 INFO L82 PathProgramCache]: Analyzing trace with hash 48314154, now seen corresponding path program 1 times [2019-10-07 15:00:05,995 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:05,995 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:05,995 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:05,995 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:05,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:06,591 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:00:06,592 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:06,592 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:06,592 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-10-07 15:00:06,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-07 15:00:06,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-07 15:00:06,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2019-10-07 15:00:06,594 INFO L87 Difference]: Start difference. First operand 422 states and 562 transitions. Second operand 22 states. [2019-10-07 15:00:11,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:11,984 INFO L93 Difference]: Finished difference Result 875 states and 1081 transitions. [2019-10-07 15:00:11,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-07 15:00:11,984 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 150 [2019-10-07 15:00:11,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:11,990 INFO L225 Difference]: With dead ends: 875 [2019-10-07 15:00:11,990 INFO L226 Difference]: Without dead ends: 687 [2019-10-07 15:00:11,992 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=233, Invalid=1929, Unknown=0, NotChecked=0, Total=2162 [2019-10-07 15:00:11,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2019-10-07 15:00:12,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 678. [2019-10-07 15:00:12,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2019-10-07 15:00:12,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 844 transitions. [2019-10-07 15:00:12,031 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 844 transitions. Word has length 150 [2019-10-07 15:00:12,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:12,032 INFO L462 AbstractCegarLoop]: Abstraction has 678 states and 844 transitions. [2019-10-07 15:00:12,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-07 15:00:12,032 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 844 transitions. [2019-10-07 15:00:12,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-07 15:00:12,035 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:12,036 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:12,036 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:12,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:12,037 INFO L82 PathProgramCache]: Analyzing trace with hash 832653906, now seen corresponding path program 1 times [2019-10-07 15:00:12,037 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:12,037 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:12,037 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:12,037 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:12,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:00:12,323 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:12,323 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:12,323 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:00:12,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:00:12,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:00:12,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:00:12,325 INFO L87 Difference]: Start difference. First operand 678 states and 844 transitions. Second operand 12 states. [2019-10-07 15:00:14,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:14,389 INFO L93 Difference]: Finished difference Result 1406 states and 1696 transitions. [2019-10-07 15:00:14,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 15:00:14,390 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 156 [2019-10-07 15:00:14,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:14,398 INFO L225 Difference]: With dead ends: 1406 [2019-10-07 15:00:14,398 INFO L226 Difference]: Without dead ends: 1083 [2019-10-07 15:00:14,400 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-10-07 15:00:14,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2019-10-07 15:00:14,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1008. [2019-10-07 15:00:14,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1008 states. [2019-10-07 15:00:14,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1240 transitions. [2019-10-07 15:00:14,479 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1240 transitions. Word has length 156 [2019-10-07 15:00:14,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:14,479 INFO L462 AbstractCegarLoop]: Abstraction has 1008 states and 1240 transitions. [2019-10-07 15:00:14,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:00:14,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1240 transitions. [2019-10-07 15:00:14,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-07 15:00:14,484 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:14,484 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:14,485 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:14,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:14,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1230130528, now seen corresponding path program 1 times [2019-10-07 15:00:14,485 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:14,485 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:14,486 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:14,486 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:14,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:14,620 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:14,620 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:14,621 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:14,621 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:14,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:14,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:14,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:14,622 INFO L87 Difference]: Start difference. First operand 1008 states and 1240 transitions. Second operand 3 states. [2019-10-07 15:00:14,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:14,692 INFO L93 Difference]: Finished difference Result 2159 states and 2771 transitions. [2019-10-07 15:00:14,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:14,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2019-10-07 15:00:14,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:14,700 INFO L225 Difference]: With dead ends: 2159 [2019-10-07 15:00:14,701 INFO L226 Difference]: Without dead ends: 1209 [2019-10-07 15:00:14,704 INFO L606 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 [2019-10-07 15:00:14,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2019-10-07 15:00:14,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1207. [2019-10-07 15:00:14,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1207 states. [2019-10-07 15:00:14,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1586 transitions. [2019-10-07 15:00:14,864 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1586 transitions. Word has length 172 [2019-10-07 15:00:14,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:14,864 INFO L462 AbstractCegarLoop]: Abstraction has 1207 states and 1586 transitions. [2019-10-07 15:00:14,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:14,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1586 transitions. [2019-10-07 15:00:14,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-07 15:00:14,871 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:14,871 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:14,872 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:14,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:14,872 INFO L82 PathProgramCache]: Analyzing trace with hash -747573017, now seen corresponding path program 1 times [2019-10-07 15:00:14,872 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:14,873 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:14,873 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:14,873 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:14,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:15,330 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:15,330 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:15,330 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:15,331 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-07 15:00:15,332 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:00:15,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:00:15,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2019-10-07 15:00:15,333 INFO L87 Difference]: Start difference. First operand 1207 states and 1586 transitions. Second operand 14 states. [2019-10-07 15:00:19,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:19,189 INFO L93 Difference]: Finished difference Result 2756 states and 3746 transitions. [2019-10-07 15:00:19,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-07 15:00:19,190 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 173 [2019-10-07 15:00:19,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:19,212 INFO L225 Difference]: With dead ends: 2756 [2019-10-07 15:00:19,212 INFO L226 Difference]: Without dead ends: 1991 [2019-10-07 15:00:19,221 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=191, Invalid=801, Unknown=0, NotChecked=0, Total=992 [2019-10-07 15:00:19,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2019-10-07 15:00:19,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1593. [2019-10-07 15:00:19,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1593 states. [2019-10-07 15:00:19,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2267 transitions. [2019-10-07 15:00:19,361 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2267 transitions. Word has length 173 [2019-10-07 15:00:19,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:19,363 INFO L462 AbstractCegarLoop]: Abstraction has 1593 states and 2267 transitions. [2019-10-07 15:00:19,363 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:00:19,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2267 transitions. [2019-10-07 15:00:19,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 15:00:19,371 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:19,372 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:19,372 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:19,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:19,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1683079785, now seen corresponding path program 1 times [2019-10-07 15:00:19,373 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:19,373 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:19,373 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:19,373 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:19,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:19,583 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:19,584 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:19,585 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:19,585 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:19,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:19,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:19,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:19,588 INFO L87 Difference]: Start difference. First operand 1593 states and 2267 transitions. Second operand 3 states. [2019-10-07 15:00:19,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:19,687 INFO L93 Difference]: Finished difference Result 3401 states and 4978 transitions. [2019-10-07 15:00:19,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:19,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-10-07 15:00:19,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:19,704 INFO L225 Difference]: With dead ends: 3401 [2019-10-07 15:00:19,704 INFO L226 Difference]: Without dead ends: 1870 [2019-10-07 15:00:19,710 INFO L606 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 [2019-10-07 15:00:19,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1870 states. [2019-10-07 15:00:19,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1870 to 1869. [2019-10-07 15:00:19,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1869 states. [2019-10-07 15:00:19,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 2755 transitions. [2019-10-07 15:00:19,864 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 2755 transitions. Word has length 174 [2019-10-07 15:00:19,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:19,864 INFO L462 AbstractCegarLoop]: Abstraction has 1869 states and 2755 transitions. [2019-10-07 15:00:19,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:19,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 2755 transitions. [2019-10-07 15:00:19,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-07 15:00:19,877 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:19,877 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:19,878 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:19,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:19,878 INFO L82 PathProgramCache]: Analyzing trace with hash -2005906263, now seen corresponding path program 1 times [2019-10-07 15:00:19,879 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:19,879 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:19,879 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:19,879 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:19,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:20,164 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:20,165 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:20,165 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:20,165 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:00:20,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:00:20,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:00:20,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:00:20,168 INFO L87 Difference]: Start difference. First operand 1869 states and 2755 transitions. Second operand 12 states. [2019-10-07 15:00:24,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:24,011 INFO L93 Difference]: Finished difference Result 3541 states and 5126 transitions. [2019-10-07 15:00:24,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 15:00:24,011 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 176 [2019-10-07 15:00:24,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:24,025 INFO L225 Difference]: With dead ends: 3541 [2019-10-07 15:00:24,025 INFO L226 Difference]: Without dead ends: 2118 [2019-10-07 15:00:24,033 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-07 15:00:24,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2019-10-07 15:00:24,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1720. [2019-10-07 15:00:24,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1720 states. [2019-10-07 15:00:24,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2480 transitions. [2019-10-07 15:00:24,169 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2480 transitions. Word has length 176 [2019-10-07 15:00:24,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:24,170 INFO L462 AbstractCegarLoop]: Abstraction has 1720 states and 2480 transitions. [2019-10-07 15:00:24,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:00:24,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2480 transitions. [2019-10-07 15:00:24,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-07 15:00:24,178 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:24,179 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:24,179 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:24,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:24,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1030979947, now seen corresponding path program 1 times [2019-10-07 15:00:24,180 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:24,180 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:24,180 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:24,180 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:24,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:24,658 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:24,658 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:24,658 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:00:24,658 INFO L95 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 [2019-10-07 15:00:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:25,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 2723 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:00:25,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:00:25,441 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:25,441 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:00:25,706 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:25,707 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:00:25,742 INFO L162 IcfgInterpreter]: Started Sifa with 164 locations of interest [2019-10-07 15:00:25,742 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:00:25,749 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:00:25,758 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:00:25,758 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:01:11,018 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 678 [2019-10-07 15:01:15,180 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 296 DAG size of output: 241 [2019-10-07 15:01:15,628 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 714 [2019-10-07 15:01:15,943 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 714 [2019-10-07 15:01:16,216 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 714 [2019-10-07 15:01:16,407 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 448 [2019-10-07 15:01:17,076 WARN L191 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:01:17,746 WARN L191 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:01:18,387 WARN L191 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:01:18,537 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 448 [2019-10-07 15:01:19,210 WARN L191 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:01:20,518 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1013 DAG size of output: 1011 [2019-10-07 15:01:21,139 WARN L191 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:01:21,328 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 448 [2019-10-07 15:01:21,931 WARN L191 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:01:22,571 WARN L191 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:01:23,186 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:01:23,329 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 448 [2019-10-07 15:01:23,975 WARN L191 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:01:23,999 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 556 for LOIs [2019-10-07 15:01:24,290 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-07 15:01:24,478 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:24,590 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:24,719 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 448 [2019-10-07 15:01:25,176 WARN L191 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 942 [2019-10-07 15:01:25,178 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1044 for LOIs [2019-10-07 15:01:25,795 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:26,382 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:26,597 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:27,489 WARN L191 SmtUtils]: Spent 890.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:01:28,087 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:28,718 WARN L191 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:28,928 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:29,781 WARN L191 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:01:30,473 WARN L191 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:31,079 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:31,287 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:32,161 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:01:33,342 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1044 [2019-10-07 15:01:33,933 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:34,316 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:35,158 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:01:35,755 WARN L191 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:36,347 WARN L191 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:36,545 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:37,379 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:01:37,974 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:38,591 WARN L191 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:38,790 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:39,632 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:01:40,218 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:40,802 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:41,004 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:41,851 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:01:42,444 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:43,034 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:43,269 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:44,113 WARN L191 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:01:44,708 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:45,294 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:45,493 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:46,347 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:01:46,946 WARN L191 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:47,536 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:47,736 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:48,581 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:01:49,175 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:49,762 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:49,969 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:50,825 WARN L191 SmtUtils]: Spent 854.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:01:51,405 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:52,013 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:52,217 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:53,043 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:01:53,632 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:54,228 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 15:01:54,428 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:55,281 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:01:56,163 WARN L191 SmtUtils]: Spent 837.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:01:57,008 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:01:57,218 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:01:58,054 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:01:59,563 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:02:00,413 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:00,620 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:01,460 WARN L191 SmtUtils]: Spent 837.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:02,297 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:03,133 WARN L191 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:03,329 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:04,171 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:05,068 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:02:05,929 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:02:06,135 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:06,997 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:02:08,517 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1173 DAG size of output: 1171 [2019-10-07 15:02:09,360 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:02:09,568 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:10,428 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:02:11,952 WARN L191 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 1173 DAG size of output: 1171 [2019-10-07 15:02:12,796 WARN L191 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:02:13,000 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:13,856 WARN L191 SmtUtils]: Spent 854.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:02:14,721 WARN L191 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:02:15,582 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:02:15,825 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:16,670 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:02:17,551 WARN L191 SmtUtils]: Spent 878.00 ms on a formula simplification that was a NOOP. DAG size: 1178 [2019-10-07 15:02:18,420 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1178 [2019-10-07 15:02:18,631 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:19,496 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1178 [2019-10-07 15:02:21,242 WARN L191 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:02:22,104 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:22,322 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:23,175 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:25,029 WARN L191 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:02:25,892 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:26,162 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:27,021 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:27,878 WARN L191 SmtUtils]: Spent 854.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:28,729 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:28,931 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:29,796 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:31,387 WARN L191 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:02:32,236 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:32,449 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:33,290 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:34,816 WARN L191 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:02:35,674 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:35,888 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:36,747 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:37,612 WARN L191 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:38,478 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:38,676 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-07 15:02:39,527 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:02:41,679 WARN L191 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 1173 DAG size of output: 1171 [2019-10-07 15:02:42,543 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:02:42,752 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:43,620 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:02:44,774 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:02:45,637 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:02:45,854 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:46,715 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:02:48,271 WARN L191 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1173 DAG size of output: 1171 [2019-10-07 15:02:49,152 WARN L191 SmtUtils]: Spent 877.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:02:49,356 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:50,212 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:02:51,648 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1178 DAG size of output: 1169 [2019-10-07 15:02:52,480 WARN L191 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 1169 [2019-10-07 15:02:52,686 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:53,503 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:02:54,991 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1180 DAG size of output: 1171 [2019-10-07 15:02:55,824 WARN L191 SmtUtils]: Spent 830.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:02:56,053 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 569 [2019-10-07 15:02:56,914 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:02:57,174 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:02:57,175 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:02:57,182 INFO L168 Benchmark]: Toolchain (without parser) took 179598.41 ms. Allocated memory was 137.9 MB in the beginning and 701.0 MB in the end (delta: 563.1 MB). Free memory was 99.4 MB in the beginning and 374.6 MB in the end (delta: -275.1 MB). Peak memory consumption was 287.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:57,183 INFO L168 Benchmark]: CDTParser took 1.39 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:02:57,183 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1157.11 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 99.0 MB in the beginning and 138.8 MB in the end (delta: -39.8 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:57,184 INFO L168 Benchmark]: Boogie Preprocessor took 168.84 ms. Allocated memory is still 203.4 MB. Free memory was 138.8 MB in the beginning and 130.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:57,185 INFO L168 Benchmark]: RCFGBuilder took 4844.93 ms. Allocated memory was 203.4 MB in the beginning and 308.8 MB in the end (delta: 105.4 MB). Free memory was 130.3 MB in the beginning and 124.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 110.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:57,185 INFO L168 Benchmark]: TraceAbstraction took 173422.46 ms. Allocated memory was 308.8 MB in the beginning and 701.0 MB in the end (delta: 392.2 MB). Free memory was 124.9 MB in the beginning and 374.6 MB in the end (delta: -249.7 MB). Peak memory consumption was 142.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:57,189 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1157.11 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 99.0 MB in the beginning and 138.8 MB in the end (delta: -39.8 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 168.84 ms. Allocated memory is still 203.4 MB. Free memory was 138.8 MB in the beginning and 130.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4844.93 ms. Allocated memory was 203.4 MB in the beginning and 308.8 MB in the end (delta: 105.4 MB). Free memory was 130.3 MB in the beginning and 124.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 110.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 173422.46 ms. Allocated memory was 308.8 MB in the beginning and 701.0 MB in the end (delta: 392.2 MB). Free memory was 124.9 MB in the beginning and 374.6 MB in the end (delta: -249.7 MB). Peak memory consumption was 142.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...