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_spec27_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:49:42,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:49:42,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:49:42,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:49:42,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:49:42,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:49:42,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:49:42,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:49:42,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:49:42,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:49:42,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:49:42,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:49:42,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:49:42,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:49:42,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:49:42,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:49:42,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:49:42,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:49:42,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:49:42,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:49:42,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:49:42,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:49:42,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:49:42,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:49:42,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:49:42,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:49:42,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:49:42,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:49:42,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:49:42,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:49:42,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:49:42,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:49:42,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:49:42,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:49:42,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:49:42,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:49:42,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:49:42,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:49:42,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:49:42,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:49:42,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:49:42,755 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 14:49:42,776 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:49:42,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:49:42,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:49:42,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:49:42,781 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:49:42,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:49:42,782 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:49:42,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:49:42,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:49:42,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:49:42,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:49:42,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:49:42,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:49:42,784 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:49:42,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:49:42,785 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:49:42,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:49:42,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:49:42,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:49:42,785 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:49:42,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:49:42,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:49:42,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:49:42,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:49:42,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:49:42,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:49:42,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:49:42,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:49:42,787 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 14:49:43,073 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:49:43,086 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:49:43,089 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:49:43,091 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:49:43,092 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:49:43,092 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product30.cil.c [2019-10-07 14:49:43,159 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e42d7354d/b27453181b734c579c8bbcc3561a6b36/FLAG7c143dc37 [2019-10-07 14:49:43,794 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:49:43,795 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product30.cil.c [2019-10-07 14:49:43,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e42d7354d/b27453181b734c579c8bbcc3561a6b36/FLAG7c143dc37 [2019-10-07 14:49:44,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e42d7354d/b27453181b734c579c8bbcc3561a6b36 [2019-10-07 14:49:44,017 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:49:44,019 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:49:44,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:49:44,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:49:44,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:49:44,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:49:44" (1/1) ... [2019-10-07 14:49:44,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b6f7d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:44, skipping insertion in model container [2019-10-07 14:49:44,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:49:44" (1/1) ... [2019-10-07 14:49:44,034 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:49:44,115 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:49:44,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:49:44,958 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:49:45,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:49:45,221 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:49:45,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:45 WrapperNode [2019-10-07 14:49:45,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:49:45,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:49:45,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:49:45,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:49:45,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:45" (1/1) ... [2019-10-07 14:49:45,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:45" (1/1) ... [2019-10-07 14:49:45,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:45" (1/1) ... [2019-10-07 14:49:45,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:45" (1/1) ... [2019-10-07 14:49:45,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:45" (1/1) ... [2019-10-07 14:49:45,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:45" (1/1) ... [2019-10-07 14:49:45,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:45" (1/1) ... [2019-10-07 14:49:45,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:49:45,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:49:45,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:49:45,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:49:45,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:49:45,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:49:45,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:49:45,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:49:45,532 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:49:45,532 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:49:45,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:49:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:49:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:49:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:49:45,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:49:45,535 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:49:45,536 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:49:45,536 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:49:45,537 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:49:45,537 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:49:45,537 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:49:45,540 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:49:45,540 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:49:45,540 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:49:45,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:49:45,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:49:45,542 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:49:45,542 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:49:45,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:49:45,542 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:49:45,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:49:45,543 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:49:45,543 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:49:45,543 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:49:45,543 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:49:45,543 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:49:45,544 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:49:45,544 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:49:45,544 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:49:45,545 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:49:45,545 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:49:45,545 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:49:45,546 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:49:45,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:49:45,546 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:49:45,546 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:49:45,546 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:49:45,547 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:49:45,547 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:49:45,547 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 14:49:45,547 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:49:45,548 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 14:49:45,548 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:49:45,548 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:49:45,548 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:49:45,548 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:49:45,549 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:49:45,549 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:49:45,549 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:49:45,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:49:45,549 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:49:45,550 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:49:45,550 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:49:45,550 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:49:45,551 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:49:45,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:49:45,551 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:49:45,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:49:45,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:49:45,552 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:49:45,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:49:45,552 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:49:45,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:49:45,553 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:49:45,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:49:45,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:49:45,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:49:45,554 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:49:45,554 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:49:45,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:49:45,555 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:49:45,555 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:49:45,556 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:49:45,556 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:49:45,556 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:49:45,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:49:45,557 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:49:45,557 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-07 14:49:45,558 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 14:49:45,558 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:49:45,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:49:45,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:49:45,559 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:49:45,559 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:49:45,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:49:45,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:49:45,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:49:45,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:49:45,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:49:45,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:49:45,560 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:49:45,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:49:45,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:49:45,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:49:45,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:49:45,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:49:45,561 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:49:45,562 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:49:45,562 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:49:45,562 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:49:45,562 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:49:45,562 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:49:45,563 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:49:45,563 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:49:45,563 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:49:45,563 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:49:45,563 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:49:45,563 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:49:45,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:49:45,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:49:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:49:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:49:45,565 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:49:45,565 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:49:45,565 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:49:45,566 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:49:45,566 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:49:45,566 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:49:45,566 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:49:45,567 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:49:45,567 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:49:45,567 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:49:45,567 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:49:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:49:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:49:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:49:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:49:45,569 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:49:45,569 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:49:45,573 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:49:45,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:49:45,574 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:49:45,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:49:45,575 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:49:45,575 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:49:45,575 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:49:45,575 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:49:45,575 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:49:45,576 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:49:45,583 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:49:45,583 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:49:45,583 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:49:45,583 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:49:45,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:49:45,583 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:49:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:49:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:49:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:49:45,584 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:49:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:49:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:49:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:49:45,585 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:49:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:49:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:49:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:49:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:49:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:49:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:49:45,586 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:49:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:49:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:49:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:49:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:49:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:49:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:49:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:49:45,587 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:49:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:49:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:49:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:49:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:49:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:49:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:49:45,588 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:49:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:49:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:49:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:49:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:49:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:49:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:49:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:49:45,589 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:49:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:49:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:49:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:49:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:49:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:49:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:49:45,590 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:49:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:49:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:49:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:49:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:49:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 14:49:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:49:45,591 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 14:49:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:49:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:49:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:49:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:49:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:49:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:49:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:49:45,592 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:49:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:49:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:49:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-07 14:49:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 14:49:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:49:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:49:45,593 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:49:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:49:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:49:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:49:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:49:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:49:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:49:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:49:45,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:49:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:49:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:49:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:49:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:49:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:49:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:49:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:49:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:49:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:49:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:49:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:49:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:49:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:49:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:49:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:49:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:49:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:49:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:49:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:49:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:49:50,667 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:49:50,668 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:49:50,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:49:50 BoogieIcfgContainer [2019-10-07 14:49:50,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:49:50,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:49:50,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:49:50,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:49:50,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:49:44" (1/3) ... [2019-10-07 14:49:50,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5b3e4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:49:50, skipping insertion in model container [2019-10-07 14:49:50,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:49:45" (2/3) ... [2019-10-07 14:49:50,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5b3e4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:49:50, skipping insertion in model container [2019-10-07 14:49:50,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:49:50" (3/3) ... [2019-10-07 14:49:50,679 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product30.cil.c [2019-10-07 14:49:50,689 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:49:50,700 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:49:50,713 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:49:50,763 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:49:50,763 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:49:50,764 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:49:50,764 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:49:50,764 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:49:50,764 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:49:50,764 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:49:50,764 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:49:50,804 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states. [2019-10-07 14:49:50,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-07 14:49:50,828 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:50,830 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:50,832 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:50,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:50,839 INFO L82 PathProgramCache]: Analyzing trace with hash 929972841, now seen corresponding path program 1 times [2019-10-07 14:49:50,849 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:50,849 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:50,850 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:50,850 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:50,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:51,644 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:49:51,645 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:51,645 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:51,645 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:49:51,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:49:51,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:49:51,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:49:51,669 INFO L87 Difference]: Start difference. First operand 401 states. Second operand 2 states. [2019-10-07 14:49:51,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:51,742 INFO L93 Difference]: Finished difference Result 572 states and 681 transitions. [2019-10-07 14:49:51,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:49:51,745 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 167 [2019-10-07 14:49:51,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:51,779 INFO L225 Difference]: With dead ends: 572 [2019-10-07 14:49:51,780 INFO L226 Difference]: Without dead ends: 361 [2019-10-07 14:49:51,795 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 14:49:51,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2019-10-07 14:49:51,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2019-10-07 14:49:51,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2019-10-07 14:49:51,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 426 transitions. [2019-10-07 14:49:51,876 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 426 transitions. Word has length 167 [2019-10-07 14:49:51,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:51,879 INFO L462 AbstractCegarLoop]: Abstraction has 361 states and 426 transitions. [2019-10-07 14:49:51,879 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:49:51,879 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 426 transitions. [2019-10-07 14:49:51,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-07 14:49:51,889 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:51,889 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:51,890 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:51,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:51,890 INFO L82 PathProgramCache]: Analyzing trace with hash 16161701, now seen corresponding path program 1 times [2019-10-07 14:49:51,890 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:51,890 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:51,891 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:51,891 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:51,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:52,231 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:49:52,232 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:52,232 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:52,232 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:49:52,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:49:52,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:49:52,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:49:52,244 INFO L87 Difference]: Start difference. First operand 361 states and 426 transitions. Second operand 3 states. [2019-10-07 14:49:52,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:52,287 INFO L93 Difference]: Finished difference Result 557 states and 647 transitions. [2019-10-07 14:49:52,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:49:52,288 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2019-10-07 14:49:52,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:52,292 INFO L225 Difference]: With dead ends: 557 [2019-10-07 14:49:52,292 INFO L226 Difference]: Without dead ends: 363 [2019-10-07 14:49:52,294 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 14:49:52,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2019-10-07 14:49:52,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2019-10-07 14:49:52,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2019-10-07 14:49:52,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 428 transitions. [2019-10-07 14:49:52,336 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 428 transitions. Word has length 168 [2019-10-07 14:49:52,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:52,336 INFO L462 AbstractCegarLoop]: Abstraction has 363 states and 428 transitions. [2019-10-07 14:49:52,336 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:49:52,337 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 428 transitions. [2019-10-07 14:49:52,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-07 14:49:52,342 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:52,344 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:52,345 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:52,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:52,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1148884785, now seen corresponding path program 1 times [2019-10-07 14:49:52,345 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:52,345 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:52,346 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:52,346 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:52,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:52,565 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:49:52,565 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:52,566 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:52,566 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:49:52,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:49:52,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:49:52,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:49:52,568 INFO L87 Difference]: Start difference. First operand 363 states and 428 transitions. Second operand 3 states. [2019-10-07 14:49:52,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:52,730 INFO L93 Difference]: Finished difference Result 708 states and 863 transitions. [2019-10-07 14:49:52,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:49:52,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-10-07 14:49:52,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:52,735 INFO L225 Difference]: With dead ends: 708 [2019-10-07 14:49:52,735 INFO L226 Difference]: Without dead ends: 403 [2019-10-07 14:49:52,737 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 14:49:52,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2019-10-07 14:49:52,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 402. [2019-10-07 14:49:52,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2019-10-07 14:49:52,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 496 transitions. [2019-10-07 14:49:52,763 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 496 transitions. Word has length 177 [2019-10-07 14:49:52,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:52,764 INFO L462 AbstractCegarLoop]: Abstraction has 402 states and 496 transitions. [2019-10-07 14:49:52,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:49:52,765 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 496 transitions. [2019-10-07 14:49:52,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-07 14:49:52,770 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:52,770 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:52,770 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:52,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:52,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1923546868, now seen corresponding path program 1 times [2019-10-07 14:49:52,772 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:52,772 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:52,772 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:52,772 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:52,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:52,996 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:49:52,997 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:52,997 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:52,997 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:49:52,998 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:49:52,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:49:52,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:49:52,999 INFO L87 Difference]: Start difference. First operand 402 states and 496 transitions. Second operand 3 states. [2019-10-07 14:49:53,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:53,033 INFO L93 Difference]: Finished difference Result 822 states and 1062 transitions. [2019-10-07 14:49:53,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:49:53,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-07 14:49:53,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:53,039 INFO L225 Difference]: With dead ends: 822 [2019-10-07 14:49:53,040 INFO L226 Difference]: Without dead ends: 478 [2019-10-07 14:49:53,042 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 14:49:53,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2019-10-07 14:49:53,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 477. [2019-10-07 14:49:53,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2019-10-07 14:49:53,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 626 transitions. [2019-10-07 14:49:53,074 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 626 transitions. Word has length 178 [2019-10-07 14:49:53,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:53,075 INFO L462 AbstractCegarLoop]: Abstraction has 477 states and 626 transitions. [2019-10-07 14:49:53,075 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:49:53,075 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 626 transitions. [2019-10-07 14:49:53,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-07 14:49:53,081 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:53,082 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:53,082 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:53,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:53,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1874145187, now seen corresponding path program 1 times [2019-10-07 14:49:53,083 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:53,084 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:53,084 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:53,084 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:53,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:53,875 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:49:53,875 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:53,876 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:53,876 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-07 14:49:53,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-07 14:49:53,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-07 14:49:53,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2019-10-07 14:49:53,878 INFO L87 Difference]: Start difference. First operand 477 states and 626 transitions. Second operand 26 states. [2019-10-07 14:50:01,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:01,391 INFO L93 Difference]: Finished difference Result 929 states and 1174 transitions. [2019-10-07 14:50:01,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-07 14:50:01,392 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 181 [2019-10-07 14:50:01,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:01,399 INFO L225 Difference]: With dead ends: 929 [2019-10-07 14:50:01,400 INFO L226 Difference]: Without dead ends: 735 [2019-10-07 14:50:01,402 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=1813, Unknown=0, NotChecked=0, Total=1980 [2019-10-07 14:50:01,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2019-10-07 14:50:01,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 706. [2019-10-07 14:50:01,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2019-10-07 14:50:01,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 904 transitions. [2019-10-07 14:50:01,451 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 904 transitions. Word has length 181 [2019-10-07 14:50:01,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:01,452 INFO L462 AbstractCegarLoop]: Abstraction has 706 states and 904 transitions. [2019-10-07 14:50:01,452 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-07 14:50:01,452 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 904 transitions. [2019-10-07 14:50:01,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-07 14:50:01,457 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:01,457 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:01,457 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:01,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:01,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1169459489, now seen corresponding path program 1 times [2019-10-07 14:50:01,458 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:01,458 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:01,458 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:01,459 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:01,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:01,697 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:50:01,697 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:01,697 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:01,698 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:50:01,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:50:01,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:50:01,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:50:01,699 INFO L87 Difference]: Start difference. First operand 706 states and 904 transitions. Second operand 10 states. [2019-10-07 14:50:01,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:01,763 INFO L93 Difference]: Finished difference Result 1103 states and 1374 transitions. [2019-10-07 14:50:01,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:50:01,763 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 185 [2019-10-07 14:50:01,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:01,769 INFO L225 Difference]: With dead ends: 1103 [2019-10-07 14:50:01,769 INFO L226 Difference]: Without dead ends: 726 [2019-10-07 14:50:01,771 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:50:01,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2019-10-07 14:50:01,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 710. [2019-10-07 14:50:01,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 710 states. [2019-10-07 14:50:01,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 907 transitions. [2019-10-07 14:50:01,811 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 907 transitions. Word has length 185 [2019-10-07 14:50:01,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:01,812 INFO L462 AbstractCegarLoop]: Abstraction has 710 states and 907 transitions. [2019-10-07 14:50:01,812 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:50:01,812 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 907 transitions. [2019-10-07 14:50:01,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-07 14:50:01,817 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:01,818 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:01,818 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:01,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:01,818 INFO L82 PathProgramCache]: Analyzing trace with hash -438282172, now seen corresponding path program 1 times [2019-10-07 14:50:01,819 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:01,819 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:01,819 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:01,819 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:01,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:02,711 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:50:02,713 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:02,713 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:02,713 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2019-10-07 14:50:02,714 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-10-07 14:50:02,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-10-07 14:50:02,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=849, Unknown=0, NotChecked=0, Total=930 [2019-10-07 14:50:02,717 INFO L87 Difference]: Start difference. First operand 710 states and 907 transitions. Second operand 31 states. [2019-10-07 14:50:14,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:14,656 INFO L93 Difference]: Finished difference Result 1579 states and 1935 transitions. [2019-10-07 14:50:14,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-07 14:50:14,657 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 187 [2019-10-07 14:50:14,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:14,665 INFO L225 Difference]: With dead ends: 1579 [2019-10-07 14:50:14,665 INFO L226 Difference]: Without dead ends: 1151 [2019-10-07 14:50:14,669 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=295, Invalid=3487, Unknown=0, NotChecked=0, Total=3782 [2019-10-07 14:50:14,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2019-10-07 14:50:14,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1134. [2019-10-07 14:50:14,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1134 states. [2019-10-07 14:50:14,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1404 transitions. [2019-10-07 14:50:14,726 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1404 transitions. Word has length 187 [2019-10-07 14:50:14,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:14,727 INFO L462 AbstractCegarLoop]: Abstraction has 1134 states and 1404 transitions. [2019-10-07 14:50:14,727 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-10-07 14:50:14,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1404 transitions. [2019-10-07 14:50:14,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-07 14:50:14,732 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:14,732 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:14,732 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:14,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:14,733 INFO L82 PathProgramCache]: Analyzing trace with hash 726206199, now seen corresponding path program 1 times [2019-10-07 14:50:14,733 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:14,733 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:14,733 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:14,733 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:14,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:15,444 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:50:15,444 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:15,445 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:15,445 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-07 14:50:15,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-07 14:50:15,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-07 14:50:15,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-07 14:50:15,447 INFO L87 Difference]: Start difference. First operand 1134 states and 1404 transitions. Second operand 25 states. [2019-10-07 14:50:25,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:25,598 INFO L93 Difference]: Finished difference Result 2505 states and 2987 transitions. [2019-10-07 14:50:25,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-07 14:50:25,599 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 211 [2019-10-07 14:50:25,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:25,608 INFO L225 Difference]: With dead ends: 2505 [2019-10-07 14:50:25,608 INFO L226 Difference]: Without dead ends: 1677 [2019-10-07 14:50:25,612 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=253, Invalid=2399, Unknown=0, NotChecked=0, Total=2652 [2019-10-07 14:50:25,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2019-10-07 14:50:25,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1597. [2019-10-07 14:50:25,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1597 states. [2019-10-07 14:50:25,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 1946 transitions. [2019-10-07 14:50:25,704 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 1946 transitions. Word has length 211 [2019-10-07 14:50:25,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:25,705 INFO L462 AbstractCegarLoop]: Abstraction has 1597 states and 1946 transitions. [2019-10-07 14:50:25,705 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-07 14:50:25,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 1946 transitions. [2019-10-07 14:50:25,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-07 14:50:25,712 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:25,712 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:25,712 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:25,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:25,713 INFO L82 PathProgramCache]: Analyzing trace with hash -275788664, now seen corresponding path program 1 times [2019-10-07 14:50:25,713 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:25,713 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:25,713 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:25,714 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:25,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:26,837 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:50:26,837 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:26,837 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:50:26,837 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 14:50:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:27,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 2982 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:50:27,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:50:27,674 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:50:27,675 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:50:27,997 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:50:27,998 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:50:28,033 INFO L162 IcfgInterpreter]: Started Sifa with 196 locations of interest [2019-10-07 14:50:28,033 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:50:28,041 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:50:28,048 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:50:28,049 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:51:23,159 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 675 [2019-10-07 14:51:27,165 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 304 DAG size of output: 247 [2019-10-07 14:51:27,524 WARN L191 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-10-07 14:51:27,879 WARN L191 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-10-07 14:51:28,148 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-10-07 14:51:28,316 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:51:28,949 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:51:29,563 WARN L191 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:51:30,191 WARN L191 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:51:30,343 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:51:30,971 WARN L191 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:51:32,216 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1011 DAG size of output: 1009 [2019-10-07 14:51:32,790 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:51:32,923 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:51:33,551 WARN L191 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:51:34,126 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:51:34,722 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:51:34,838 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:51:35,430 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 1009 [2019-10-07 14:51:35,462 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 553 for LOIs [2019-10-07 14:51:35,590 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 553 [2019-10-07 14:51:35,914 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 14:51:36,136 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:51:36,573 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 936 [2019-10-07 14:51:36,574 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1049 for LOIs [2019-10-07 14:51:37,173 WARN L191 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:37,736 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:38,066 WARN L191 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:51:38,944 WARN L191 SmtUtils]: Spent 876.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:51:39,531 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:40,135 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:40,338 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:51:41,173 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:51:41,870 WARN L191 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:42,441 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:42,640 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:51:43,493 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:51:44,608 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 1187 DAG size of output: 1049 [2019-10-07 14:51:45,226 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:45,454 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:51:46,296 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:51:46,886 WARN L191 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:47,461 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:47,726 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:51:48,590 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:51:49,162 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:49,735 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:49,935 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:51:50,788 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:51:51,356 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:51,927 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:52,124 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:51:52,976 WARN L191 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:51:53,547 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:54,115 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:54,316 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:51:55,153 WARN L191 SmtUtils]: Spent 835.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:51:55,732 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:56,319 WARN L191 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:56,526 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:51:57,362 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:51:57,929 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:58,499 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:51:58,697 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:51:59,535 WARN L191 SmtUtils]: Spent 835.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:00,104 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:52:00,684 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:52:00,880 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:52:01,716 WARN L191 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:02,287 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:52:02,859 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:52:03,057 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:52:03,897 WARN L191 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:04,462 WARN L191 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:52:05,031 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 14:52:05,227 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:52:06,072 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:06,967 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:07,816 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:08,030 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:52:08,873 WARN L191 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:10,420 WARN L191 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 1187 DAG size of output: 1185 [2019-10-07 14:52:11,267 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:11,483 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:52:12,319 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:13,164 WARN L191 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:14,013 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:14,211 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:52:15,070 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:15,986 WARN L191 SmtUtils]: Spent 883.00 ms on a formula simplification that was a NOOP. DAG size: 1187 [2019-10-07 14:52:16,843 WARN L191 SmtUtils]: Spent 854.00 ms on a formula simplification that was a NOOP. DAG size: 1187 [2019-10-07 14:52:17,060 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 14:52:17,929 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 1189 [2019-10-07 14:52:19,451 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1191 DAG size of output: 1187 [2019-10-07 14:52:20,312 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1187 [2019-10-07 14:52:20,522 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 14:52:21,389 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1189 [2019-10-07 14:52:22,246 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1187 [2019-10-07 14:52:23,096 WARN L191 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 1187 [2019-10-07 14:52:23,300 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 14:52:24,176 WARN L191 SmtUtils]: Spent 873.00 ms on a formula simplification that was a NOOP. DAG size: 1189 [2019-10-07 14:52:25,037 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1194 [2019-10-07 14:52:25,893 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1194 [2019-10-07 14:52:26,137 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 14:52:26,983 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1194 [2019-10-07 14:52:27,835 WARN L191 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 14:52:28,680 WARN L191 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 14:52:28,886 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 14:52:29,736 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1196 [2019-10-07 14:52:31,519 WARN L191 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 1187 DAG size of output: 1185 [2019-10-07 14:52:32,373 WARN L191 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:32,581 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:52:33,435 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:34,997 WARN L191 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1187 DAG size of output: 1185 [2019-10-07 14:52:35,848 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:36,056 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:52:36,916 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:37,783 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:38,632 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:38,832 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:52:39,683 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:41,616 WARN L191 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 1187 DAG size of output: 1185 [2019-10-07 14:52:42,481 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:42,688 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:52:43,541 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:45,081 WARN L191 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 1187 DAG size of output: 1185 [2019-10-07 14:52:45,941 WARN L191 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:46,146 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:52:47,012 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:47,865 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:48,716 WARN L191 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:48,915 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:52:49,764 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1185 [2019-10-07 14:52:51,259 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1191 DAG size of output: 1187 [2019-10-07 14:52:52,120 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1187 [2019-10-07 14:52:52,336 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 14:52:53,193 WARN L191 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 1189 [2019-10-07 14:52:54,762 WARN L191 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1191 DAG size of output: 1189 [2019-10-07 14:52:55,630 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1189 [2019-10-07 14:52:55,839 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 14:52:56,699 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1189 [2019-10-07 14:52:58,164 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1191 DAG size of output: 1187 [2019-10-07 14:52:59,017 WARN L191 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 1187 [2019-10-07 14:52:59,222 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 14:53:00,081 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1189 [2019-10-07 14:53:01,440 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1196 DAG size of output: 1187 [2019-10-07 14:53:02,300 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1187 [2019-10-07 14:53:02,510 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 14:53:03,374 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1189 [2019-10-07 14:53:04,659 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1198 DAG size of output: 1189 [2019-10-07 14:53:05,520 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1189 [2019-10-07 14:53:05,752 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 14:53:06,615 WARN L191 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 1191 [2019-10-07 14:53:06,875 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:53:06,880 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 14:53:06,891 INFO L168 Benchmark]: Toolchain (without parser) took 202872.48 ms. Allocated memory was 136.3 MB in the beginning and 545.3 MB in the end (delta: 408.9 MB). Free memory was 97.4 MB in the beginning and 459.9 MB in the end (delta: -362.6 MB). Peak memory consumption was 503.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:06,891 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 136.3 MB. Free memory is still 117.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 14:53:06,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1203.33 ms. Allocated memory was 136.3 MB in the beginning and 202.4 MB in the end (delta: 66.1 MB). Free memory was 97.4 MB in the beginning and 139.7 MB in the end (delta: -42.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:06,898 INFO L168 Benchmark]: Boogie Preprocessor took 192.40 ms. Allocated memory is still 202.4 MB. Free memory was 139.7 MB in the beginning and 131.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:06,899 INFO L168 Benchmark]: RCFGBuilder took 5253.65 ms. Allocated memory was 202.4 MB in the beginning and 310.4 MB in the end (delta: 108.0 MB). Free memory was 131.2 MB in the beginning and 130.2 MB in the end (delta: 966.6 kB). Peak memory consumption was 109.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:06,903 INFO L168 Benchmark]: TraceAbstraction took 196218.03 ms. Allocated memory was 310.4 MB in the beginning and 545.3 MB in the end (delta: 234.9 MB). Free memory was 130.2 MB in the beginning and 459.9 MB in the end (delta: -329.7 MB). Peak memory consumption was 361.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:06,906 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 136.3 MB. Free memory is still 117.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1203.33 ms. Allocated memory was 136.3 MB in the beginning and 202.4 MB in the end (delta: 66.1 MB). Free memory was 97.4 MB in the beginning and 139.7 MB in the end (delta: -42.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 192.40 ms. Allocated memory is still 202.4 MB. Free memory was 139.7 MB in the beginning and 131.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5253.65 ms. Allocated memory was 202.4 MB in the beginning and 310.4 MB in the end (delta: 108.0 MB). Free memory was 131.2 MB in the beginning and 130.2 MB in the end (delta: 966.6 kB). Peak memory consumption was 109.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 196218.03 ms. Allocated memory was 310.4 MB in the beginning and 545.3 MB in the end (delta: 234.9 MB). Free memory was 130.2 MB in the beginning and 459.9 MB in the end (delta: -329.7 MB). Peak memory consumption was 361.8 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...