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_spec8_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:17:22,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:17:22,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:17:22,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:17:22,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:17:22,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:17:22,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:17:22,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:17:22,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:17:22,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:17:22,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:17:22,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:17:22,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:17:22,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:17:22,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:17:22,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:17:22,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:17:22,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:17:22,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:17:22,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:17:22,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:17:22,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:17:22,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:17:22,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:17:22,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:17:22,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:17:22,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:17:22,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:17:22,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:17:22,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:17:22,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:17:22,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:17:22,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:17:22,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:17:22,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:17:22,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:17:22,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:17:22,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:17:22,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:17:22,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:17:22,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:17:22,083 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:17:22,103 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:17:22,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:17:22,104 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:17:22,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:17:22,105 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:17:22,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:17:22,105 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:17:22,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:17:22,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:17:22,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:17:22,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:17:22,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:17:22,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:17:22,107 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:17:22,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:17:22,107 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:17:22,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:17:22,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:17:22,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:17:22,108 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:17:22,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:17:22,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:17:22,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:17:22,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:17:22,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:17:22,110 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:17:22,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:17:22,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:17:22,110 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:17:22,412 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:17:22,430 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:17:22,434 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:17:22,435 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:17:22,436 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:17:22,437 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product29.cil.c [2019-10-15 03:17:22,495 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0825a14ec/115a73741b80474a8d6c0f0767abfa51/FLAG6c677dafc [2019-10-15 03:17:23,170 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:17:23,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product29.cil.c [2019-10-15 03:17:23,190 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0825a14ec/115a73741b80474a8d6c0f0767abfa51/FLAG6c677dafc [2019-10-15 03:17:23,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0825a14ec/115a73741b80474a8d6c0f0767abfa51 [2019-10-15 03:17:23,337 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:17:23,339 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:17:23,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:17:23,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:17:23,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:17:23,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:17:23" (1/1) ... [2019-10-15 03:17:23,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21b67f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:23, skipping insertion in model container [2019-10-15 03:17:23,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:17:23" (1/1) ... [2019-10-15 03:17:23,360 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:17:23,451 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:17:24,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:17:24,272 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:17:24,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:17:24,459 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:17:24,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:24 WrapperNode [2019-10-15 03:17:24,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:17:24,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:17:24,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:17:24,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:17:24,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:24" (1/1) ... [2019-10-15 03:17:24,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:24" (1/1) ... [2019-10-15 03:17:24,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:24" (1/1) ... [2019-10-15 03:17:24,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:24" (1/1) ... [2019-10-15 03:17:24,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:24" (1/1) ... [2019-10-15 03:17:24,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:24" (1/1) ... [2019-10-15 03:17:24,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:24" (1/1) ... [2019-10-15 03:17:24,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:17:24,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:17:24,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:17:24,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:17:24,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:17:24,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:17:24,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:17:24,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:17:24,738 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:17:24,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:17:24,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:17:24,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:17:24,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:17:24,740 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:17:24,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:17:24,740 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:17:24,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:17:24,741 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:17:24,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:17:24,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:17:24,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:17:24,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:17:24,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:17:24,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:17:24,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:17:24,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:17:24,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:17:24,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:17:24,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:17:24,746 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:17:24,747 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:17:24,747 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:17:24,747 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:17:24,747 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:17:24,748 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 03:17:24,748 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 03:17:24,748 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:17:24,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:17:24,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:17:24,749 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:17:24,749 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:17:24,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 03:17:24,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 03:17:24,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:17:24,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:17:24,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:17:24,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:17:24,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:17:24,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:17:24,751 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:17:24,751 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:17:24,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:17:24,752 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:17:24,752 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:17:24,754 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 03:17:24,754 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 03:17:24,754 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:17:24,754 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:17:24,755 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:17:24,755 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:17:24,755 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:17:24,755 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:17:24,756 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:17:24,756 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:17:24,756 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:17:24,757 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:17:24,757 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:17:24,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:17:24,757 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:17:24,758 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:17:24,758 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:17:24,758 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:17:24,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:17:24,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:17:24,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:17:24,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:17:24,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:17:24,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:17:24,760 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:17:24,761 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:17:24,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:17:24,762 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:17:24,762 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:17:24,762 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:17:24,762 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:17:24,763 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:17:24,764 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:17:24,764 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:17:24,764 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:17:24,764 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:17:24,764 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:17:24,765 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:17:24,765 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:17:24,765 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:17:24,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:17:24,765 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:17:24,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:17:24,766 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:17:24,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:17:24,766 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:17:24,766 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:17:24,766 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:17:24,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:17:24,767 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:17:24,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:17:24,767 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:17:24,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:17:24,767 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:17:24,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:17:24,768 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:17:24,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:17:24,768 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:17:24,768 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:17:24,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:17:24,769 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:17:24,769 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:17:24,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:17:24,769 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:17:24,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:17:24,769 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:17:24,770 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:17:24,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:17:24,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:17:24,770 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:17:24,771 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:17:24,771 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:17:24,771 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:17:24,772 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:17:24,772 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:17:24,773 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:17:24,773 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:17:24,773 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:17:24,773 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:17:24,774 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:17:24,774 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:17:24,774 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:17:24,775 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:17:24,775 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:17:24,776 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:17:24,780 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:17:24,780 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:17:24,781 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:17:24,781 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:17:24,782 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:17:24,782 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:17:24,782 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:17:24,782 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:17:24,782 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:17:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:17:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:17:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:17:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:17:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:17:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:17:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:17:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 03:17:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 03:17:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:17:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:17:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:17:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 03:17:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 03:17:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:17:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:17:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:17:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:17:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:17:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:17:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:17:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:17:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:17:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:17:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:17:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:17:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:17:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:17:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:17:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:17:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:17:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:17:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:17:24,797 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:17:24,797 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:17:24,797 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:17:24,797 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:17:24,798 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:17:24,798 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:17:24,798 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:17:24,798 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:17:24,798 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:17:24,798 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:17:24,798 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:17:24,799 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:17:24,799 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:17:24,799 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:17:24,799 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:17:24,799 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:17:24,800 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:17:24,800 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:17:24,800 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:17:24,800 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:17:24,800 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:17:24,800 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:17:24,800 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:17:24,800 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:17:24,801 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:17:24,801 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:17:24,801 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:17:24,801 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:17:24,801 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:17:24,801 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:17:24,801 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:17:24,801 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 03:17:24,802 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 03:17:24,802 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:17:24,802 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:17:24,802 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:17:24,802 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:17:24,802 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:17:24,802 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:17:24,803 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:17:24,803 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:17:24,803 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:17:24,803 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:17:24,803 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:17:24,803 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:17:24,803 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:17:24,803 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:17:24,804 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:17:24,804 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:17:24,804 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:17:24,804 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:17:24,804 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:17:24,804 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:17:24,804 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:17:24,804 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:17:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:17:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:17:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:17:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:17:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:17:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:17:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:17:24,805 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:17:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:17:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:17:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:17:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:17:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:17:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:17:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:17:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:17:29,804 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:17:29,805 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:17:29,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:17:29 BoogieIcfgContainer [2019-10-15 03:17:29,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:17:29,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:17:29,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:17:29,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:17:29,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:17:23" (1/3) ... [2019-10-15 03:17:29,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536a8cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:17:29, skipping insertion in model container [2019-10-15 03:17:29,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:24" (2/3) ... [2019-10-15 03:17:29,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536a8cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:17:29, skipping insertion in model container [2019-10-15 03:17:29,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:17:29" (3/3) ... [2019-10-15 03:17:29,815 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product29.cil.c [2019-10-15 03:17:29,826 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:17:29,836 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:17:29,851 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:17:29,893 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:17:29,893 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:17:29,893 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:17:29,893 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:17:29,893 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:17:29,893 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:17:29,893 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:17:29,894 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:17:29,947 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states. [2019-10-15 03:17:29,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-15 03:17:29,983 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:29,984 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:29,989 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:29,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:29,996 INFO L82 PathProgramCache]: Analyzing trace with hash -929806989, now seen corresponding path program 1 times [2019-10-15 03:17:30,007 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:30,008 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081971064] [2019-10-15 03:17:30,009 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:30,009 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:30,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:30,756 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:30,757 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081971064] [2019-10-15 03:17:30,758 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:30,758 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:17:30,759 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711313360] [2019-10-15 03:17:30,764 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:17:30,764 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:30,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:17:30,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:17:30,781 INFO L87 Difference]: Start difference. First operand 421 states. Second operand 2 states. [2019-10-15 03:17:30,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:30,844 INFO L93 Difference]: Finished difference Result 589 states and 705 transitions. [2019-10-15 03:17:30,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:17:30,845 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-10-15 03:17:30,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:30,867 INFO L225 Difference]: With dead ends: 589 [2019-10-15 03:17:30,867 INFO L226 Difference]: Without dead ends: 373 [2019-10-15 03:17:30,874 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:17:30,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2019-10-15 03:17:30,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2019-10-15 03:17:30,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2019-10-15 03:17:30,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 443 transitions. [2019-10-15 03:17:30,960 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 443 transitions. Word has length 132 [2019-10-15 03:17:30,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:30,962 INFO L462 AbstractCegarLoop]: Abstraction has 373 states and 443 transitions. [2019-10-15 03:17:30,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:17:30,962 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 443 transitions. [2019-10-15 03:17:30,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-15 03:17:30,966 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:30,966 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:30,967 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:30,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:30,967 INFO L82 PathProgramCache]: Analyzing trace with hash -708587585, now seen corresponding path program 1 times [2019-10-15 03:17:30,968 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:30,968 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785407900] [2019-10-15 03:17:30,968 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:30,968 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:30,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:31,242 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:31,242 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785407900] [2019-10-15 03:17:31,243 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:31,243 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:31,243 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690244021] [2019-10-15 03:17:31,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:31,246 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:31,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:31,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:31,246 INFO L87 Difference]: Start difference. First operand 373 states and 443 transitions. Second operand 3 states. [2019-10-15 03:17:31,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:31,316 INFO L93 Difference]: Finished difference Result 574 states and 673 transitions. [2019-10-15 03:17:31,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:31,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-10-15 03:17:31,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:31,331 INFO L225 Difference]: With dead ends: 574 [2019-10-15 03:17:31,331 INFO L226 Difference]: Without dead ends: 375 [2019-10-15 03:17:31,338 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:31,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-10-15 03:17:31,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2019-10-15 03:17:31,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2019-10-15 03:17:31,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 445 transitions. [2019-10-15 03:17:31,399 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 445 transitions. Word has length 133 [2019-10-15 03:17:31,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:31,400 INFO L462 AbstractCegarLoop]: Abstraction has 375 states and 445 transitions. [2019-10-15 03:17:31,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:31,400 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 445 transitions. [2019-10-15 03:17:31,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-15 03:17:31,405 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:31,405 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:31,405 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:31,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:31,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1229602126, now seen corresponding path program 1 times [2019-10-15 03:17:31,406 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:31,406 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494445148] [2019-10-15 03:17:31,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:31,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:31,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:31,584 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:31,584 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494445148] [2019-10-15 03:17:31,585 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:31,585 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:31,585 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227961918] [2019-10-15 03:17:31,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:31,586 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:31,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:31,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:31,587 INFO L87 Difference]: Start difference. First operand 375 states and 445 transitions. Second operand 3 states. [2019-10-15 03:17:31,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:31,619 INFO L93 Difference]: Finished difference Result 732 states and 897 transitions. [2019-10-15 03:17:31,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:31,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2019-10-15 03:17:31,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:31,624 INFO L225 Difference]: With dead ends: 732 [2019-10-15 03:17:31,624 INFO L226 Difference]: Without dead ends: 415 [2019-10-15 03:17:31,626 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:31,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2019-10-15 03:17:31,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 414. [2019-10-15 03:17:31,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2019-10-15 03:17:31,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 513 transitions. [2019-10-15 03:17:31,648 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 513 transitions. Word has length 138 [2019-10-15 03:17:31,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:31,648 INFO L462 AbstractCegarLoop]: Abstraction has 414 states and 513 transitions. [2019-10-15 03:17:31,649 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:31,649 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 513 transitions. [2019-10-15 03:17:31,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-15 03:17:31,651 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:31,652 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:31,652 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:31,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:31,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1480215047, now seen corresponding path program 1 times [2019-10-15 03:17:31,653 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:31,653 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456049370] [2019-10-15 03:17:31,653 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:31,653 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:31,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:31,875 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:17:31,875 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456049370] [2019-10-15 03:17:31,876 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:31,876 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:31,877 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340443813] [2019-10-15 03:17:31,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:31,878 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:31,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:31,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:31,878 INFO L87 Difference]: Start difference. First operand 414 states and 513 transitions. Second operand 3 states. [2019-10-15 03:17:31,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:31,917 INFO L93 Difference]: Finished difference Result 682 states and 827 transitions. [2019-10-15 03:17:31,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:31,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2019-10-15 03:17:31,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:31,932 INFO L225 Difference]: With dead ends: 682 [2019-10-15 03:17:31,932 INFO L226 Difference]: Without dead ends: 495 [2019-10-15 03:17:31,934 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:31,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2019-10-15 03:17:31,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 494. [2019-10-15 03:17:31,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2019-10-15 03:17:31,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 604 transitions. [2019-10-15 03:17:31,987 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 604 transitions. Word has length 139 [2019-10-15 03:17:31,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:31,988 INFO L462 AbstractCegarLoop]: Abstraction has 494 states and 604 transitions. [2019-10-15 03:17:31,989 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:31,989 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 604 transitions. [2019-10-15 03:17:32,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-15 03:17:32,002 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:32,002 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:32,003 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:32,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:32,003 INFO L82 PathProgramCache]: Analyzing trace with hash 483835265, now seen corresponding path program 1 times [2019-10-15 03:17:32,004 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:32,005 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665699197] [2019-10-15 03:17:32,005 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:32,005 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:32,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:32,648 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:32,649 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665699197] [2019-10-15 03:17:32,649 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:32,649 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-15 03:17:32,650 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023143433] [2019-10-15 03:17:32,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 03:17:32,651 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:32,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 03:17:32,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-15 03:17:32,652 INFO L87 Difference]: Start difference. First operand 494 states and 604 transitions. Second operand 14 states. [2019-10-15 03:17:36,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:36,784 INFO L93 Difference]: Finished difference Result 1153 states and 1399 transitions. [2019-10-15 03:17:36,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:17:36,784 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 241 [2019-10-15 03:17:36,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:36,791 INFO L225 Difference]: With dead ends: 1153 [2019-10-15 03:17:36,791 INFO L226 Difference]: Without dead ends: 908 [2019-10-15 03:17:36,793 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-15 03:17:36,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2019-10-15 03:17:36,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 899. [2019-10-15 03:17:36,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 899 states. [2019-10-15 03:17:36,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1108 transitions. [2019-10-15 03:17:36,844 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1108 transitions. Word has length 241 [2019-10-15 03:17:36,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:36,844 INFO L462 AbstractCegarLoop]: Abstraction has 899 states and 1108 transitions. [2019-10-15 03:17:36,844 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 03:17:36,844 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1108 transitions. [2019-10-15 03:17:36,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-10-15 03:17:36,850 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:36,851 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:36,851 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:36,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:36,851 INFO L82 PathProgramCache]: Analyzing trace with hash -204967358, now seen corresponding path program 1 times [2019-10-15 03:17:36,852 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:36,852 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106933855] [2019-10-15 03:17:36,852 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:36,852 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:36,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:37,100 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:37,101 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106933855] [2019-10-15 03:17:37,102 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:37,102 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:37,102 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170315227] [2019-10-15 03:17:37,103 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:37,103 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:37,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:37,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:37,104 INFO L87 Difference]: Start difference. First operand 899 states and 1108 transitions. Second operand 3 states. [2019-10-15 03:17:37,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:37,164 INFO L93 Difference]: Finished difference Result 1896 states and 2425 transitions. [2019-10-15 03:17:37,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:37,164 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 263 [2019-10-15 03:17:37,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:37,171 INFO L225 Difference]: With dead ends: 1896 [2019-10-15 03:17:37,172 INFO L226 Difference]: Without dead ends: 1055 [2019-10-15 03:17:37,176 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:37,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2019-10-15 03:17:37,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 1053. [2019-10-15 03:17:37,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2019-10-15 03:17:37,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1374 transitions. [2019-10-15 03:17:37,244 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1374 transitions. Word has length 263 [2019-10-15 03:17:37,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:37,245 INFO L462 AbstractCegarLoop]: Abstraction has 1053 states and 1374 transitions. [2019-10-15 03:17:37,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:37,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1374 transitions. [2019-10-15 03:17:37,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2019-10-15 03:17:37,255 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:37,256 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:37,256 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:37,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:37,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1684471433, now seen corresponding path program 1 times [2019-10-15 03:17:37,258 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:37,258 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562164327] [2019-10-15 03:17:37,258 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:37,258 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:37,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:37,493 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:37,494 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562164327] [2019-10-15 03:17:37,494 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:37,495 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:37,495 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134860526] [2019-10-15 03:17:37,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:37,496 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:37,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:37,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:37,496 INFO L87 Difference]: Start difference. First operand 1053 states and 1374 transitions. Second operand 3 states. [2019-10-15 03:17:37,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:37,619 INFO L93 Difference]: Finished difference Result 2338 states and 3191 transitions. [2019-10-15 03:17:37,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:37,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2019-10-15 03:17:37,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:37,627 INFO L225 Difference]: With dead ends: 2338 [2019-10-15 03:17:37,628 INFO L226 Difference]: Without dead ends: 1343 [2019-10-15 03:17:37,630 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:37,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2019-10-15 03:17:37,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1341. [2019-10-15 03:17:37,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1341 states. [2019-10-15 03:17:37,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1870 transitions. [2019-10-15 03:17:37,722 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1870 transitions. Word has length 264 [2019-10-15 03:17:37,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:37,725 INFO L462 AbstractCegarLoop]: Abstraction has 1341 states and 1870 transitions. [2019-10-15 03:17:37,725 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:37,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1870 transitions. [2019-10-15 03:17:37,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2019-10-15 03:17:37,734 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:37,734 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:37,734 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:37,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:37,735 INFO L82 PathProgramCache]: Analyzing trace with hash 410474628, now seen corresponding path program 1 times [2019-10-15 03:17:37,735 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:37,735 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117279885] [2019-10-15 03:17:37,735 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:37,736 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:37,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:37,917 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:37,917 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117279885] [2019-10-15 03:17:37,917 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:37,917 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:37,918 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583277142] [2019-10-15 03:17:37,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:37,919 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:37,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:37,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:37,920 INFO L87 Difference]: Start difference. First operand 1341 states and 1870 transitions. Second operand 3 states. [2019-10-15 03:17:38,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:38,021 INFO L93 Difference]: Finished difference Result 3178 states and 4639 transitions. [2019-10-15 03:17:38,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:38,021 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 265 [2019-10-15 03:17:38,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:38,033 INFO L225 Difference]: With dead ends: 3178 [2019-10-15 03:17:38,033 INFO L226 Difference]: Without dead ends: 1895 [2019-10-15 03:17:38,040 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:38,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1895 states. [2019-10-15 03:17:38,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 1893. [2019-10-15 03:17:38,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1893 states. [2019-10-15 03:17:38,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2814 transitions. [2019-10-15 03:17:38,154 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2814 transitions. Word has length 265 [2019-10-15 03:17:38,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:38,156 INFO L462 AbstractCegarLoop]: Abstraction has 1893 states and 2814 transitions. [2019-10-15 03:17:38,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:38,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2814 transitions. [2019-10-15 03:17:38,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2019-10-15 03:17:38,168 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:38,168 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:38,168 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:38,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:38,169 INFO L82 PathProgramCache]: Analyzing trace with hash -6325175, now seen corresponding path program 1 times [2019-10-15 03:17:38,169 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:38,169 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724746681] [2019-10-15 03:17:38,170 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:38,170 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:38,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:38,453 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:38,453 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724746681] [2019-10-15 03:17:38,454 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:38,454 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:38,455 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540409121] [2019-10-15 03:17:38,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:38,456 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:38,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:38,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:38,457 INFO L87 Difference]: Start difference. First operand 1893 states and 2814 transitions. Second operand 3 states. [2019-10-15 03:17:38,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:38,584 INFO L93 Difference]: Finished difference Result 4786 states and 7391 transitions. [2019-10-15 03:17:38,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:38,585 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 266 [2019-10-15 03:17:38,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:38,606 INFO L225 Difference]: With dead ends: 4786 [2019-10-15 03:17:38,607 INFO L226 Difference]: Without dead ends: 2951 [2019-10-15 03:17:38,616 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:38,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2019-10-15 03:17:38,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2949. [2019-10-15 03:17:38,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2949 states. [2019-10-15 03:17:38,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 4606 transitions. [2019-10-15 03:17:38,777 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 4606 transitions. Word has length 266 [2019-10-15 03:17:38,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:38,777 INFO L462 AbstractCegarLoop]: Abstraction has 2949 states and 4606 transitions. [2019-10-15 03:17:38,777 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:38,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 4606 transitions. [2019-10-15 03:17:38,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2019-10-15 03:17:38,802 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:38,803 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:38,803 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:38,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:38,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1214890205, now seen corresponding path program 1 times [2019-10-15 03:17:38,804 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:38,804 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919348342] [2019-10-15 03:17:38,804 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:38,804 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:38,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:39,034 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-15 03:17:39,034 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919348342] [2019-10-15 03:17:39,035 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:39,036 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:39,036 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898792702] [2019-10-15 03:17:39,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:39,038 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:39,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:39,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:39,038 INFO L87 Difference]: Start difference. First operand 2949 states and 4606 transitions. Second operand 3 states. [2019-10-15 03:17:39,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:39,298 INFO L93 Difference]: Finished difference Result 7986 states and 12799 transitions. [2019-10-15 03:17:39,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:39,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 272 [2019-10-15 03:17:39,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:39,331 INFO L225 Difference]: With dead ends: 7986 [2019-10-15 03:17:39,331 INFO L226 Difference]: Without dead ends: 5095 [2019-10-15 03:17:39,350 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:39,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5095 states. [2019-10-15 03:17:39,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5095 to 5093. [2019-10-15 03:17:39,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5093 states. [2019-10-15 03:17:39,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 8190 transitions. [2019-10-15 03:17:39,682 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 8190 transitions. Word has length 272 [2019-10-15 03:17:39,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:39,683 INFO L462 AbstractCegarLoop]: Abstraction has 5093 states and 8190 transitions. [2019-10-15 03:17:39,683 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:39,683 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 8190 transitions. [2019-10-15 03:17:39,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-10-15 03:17:39,724 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:39,725 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:39,725 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:39,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:39,726 INFO L82 PathProgramCache]: Analyzing trace with hash 159921546, now seen corresponding path program 1 times [2019-10-15 03:17:39,726 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:39,727 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003302023] [2019-10-15 03:17:39,727 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:39,727 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:39,727 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:39,923 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-15 03:17:39,924 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003302023] [2019-10-15 03:17:39,924 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:39,924 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:39,924 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847825447] [2019-10-15 03:17:39,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:39,925 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:39,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:39,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:39,926 INFO L87 Difference]: Start difference. First operand 5093 states and 8190 transitions. Second operand 3 states. [2019-10-15 03:17:40,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:40,344 INFO L93 Difference]: Finished difference Result 14098 states and 23039 transitions. [2019-10-15 03:17:40,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:40,345 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2019-10-15 03:17:40,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:40,405 INFO L225 Difference]: With dead ends: 14098 [2019-10-15 03:17:40,405 INFO L226 Difference]: Without dead ends: 9063 [2019-10-15 03:17:40,424 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:40,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9063 states. [2019-10-15 03:17:40,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9063 to 9061. [2019-10-15 03:17:40,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9061 states. [2019-10-15 03:17:40,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9061 states to 9061 states and 14782 transitions. [2019-10-15 03:17:40,828 INFO L78 Accepts]: Start accepts. Automaton has 9061 states and 14782 transitions. Word has length 273 [2019-10-15 03:17:40,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:40,829 INFO L462 AbstractCegarLoop]: Abstraction has 9061 states and 14782 transitions. [2019-10-15 03:17:40,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:40,829 INFO L276 IsEmpty]: Start isEmpty. Operand 9061 states and 14782 transitions. [2019-10-15 03:17:40,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-10-15 03:17:40,885 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:40,886 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:40,886 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:40,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:40,887 INFO L82 PathProgramCache]: Analyzing trace with hash -668177819, now seen corresponding path program 1 times [2019-10-15 03:17:40,887 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:40,887 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923295694] [2019-10-15 03:17:40,887 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:40,887 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:40,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:41,546 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-15 03:17:41,547 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923295694] [2019-10-15 03:17:41,547 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243221862] [2019-10-15 03:17:41,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:17:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:42,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 3564 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 03:17:42,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:17:42,389 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-15 03:17:42,389 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:17:42,838 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:42,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [292583868] [2019-10-15 03:17:42,877 INFO L162 IcfgInterpreter]: Started Sifa with 216 locations of interest [2019-10-15 03:17:42,877 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:17:42,885 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:17:42,893 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:17:42,894 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs