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_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:12:54,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:12:54,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:12:54,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:12:54,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:12:54,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:12:54,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:12:54,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:12:54,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:12:54,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:12:54,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:12:54,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:12:54,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:12:54,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:12:54,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:12:54,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:12:54,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:12:54,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:12:54,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:12:54,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:12:54,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:12:54,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:12:54,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:12:54,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:12:54,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:12:54,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:12:54,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:12:54,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:12:54,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:12:54,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:12:54,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:12:54,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:12:54,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:12:54,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:12:54,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:12:54,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:12:54,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:12:54,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:12:54,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:12:54,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:12:54,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:12:54,356 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:12:54,374 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:12:54,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:12:54,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:12:54,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:12:54,377 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:12:54,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:12:54,377 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:12:54,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:12:54,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:12:54,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:12:54,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:12:54,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:12:54,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:12:54,379 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:12:54,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:12:54,381 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:12:54,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:12:54,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:12:54,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:12:54,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:12:54,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:12:54,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:54,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:12:54,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:12:54,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:12:54,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:12:54,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:12:54,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:12:54,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:12:54,697 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:12:54,709 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:12:54,713 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:12:54,715 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:12:54,715 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:12:54,716 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product35.cil.c [2019-10-13 23:12:54,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c89e447/a209c4a136224a4282549b47f29ade58/FLAGe3ae5089e [2019-10-13 23:12:55,460 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:12:55,461 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product35.cil.c [2019-10-13 23:12:55,483 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c89e447/a209c4a136224a4282549b47f29ade58/FLAGe3ae5089e [2019-10-13 23:12:55,676 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c89e447/a209c4a136224a4282549b47f29ade58 [2019-10-13 23:12:55,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:12:55,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:12:55,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:55,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:12:55,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:12:55,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:55" (1/1) ... [2019-10-13 23:12:55,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f785cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:55, skipping insertion in model container [2019-10-13 23:12:55,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:55" (1/1) ... [2019-10-13 23:12:55,707 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:12:55,793 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:12:56,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:56,601 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:12:56,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:56,834 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:12:56,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:56 WrapperNode [2019-10-13 23:12:56,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:56,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:12:56,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:12:56,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:12:56,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:56" (1/1) ... [2019-10-13 23:12:56,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:56" (1/1) ... [2019-10-13 23:12:56,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:56" (1/1) ... [2019-10-13 23:12:56,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:56" (1/1) ... [2019-10-13 23:12:56,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:56" (1/1) ... [2019-10-13 23:12:56,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:56" (1/1) ... [2019-10-13 23:12:57,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:56" (1/1) ... [2019-10-13 23:12:57,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:12:57,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:12:57,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:12:57,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:12:57,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:57,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:12:57,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:12:57,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:57,084 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:12:57,084 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:12:57,085 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:12:57,085 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:12:57,085 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:12:57,085 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:12:57,085 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:12:57,086 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:12:57,086 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:12:57,086 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:12:57,086 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:12:57,086 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:12:57,086 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:12:57,087 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:12:57,087 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:12:57,087 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:12:57,090 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:12:57,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:12:57,091 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:12:57,091 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:12:57,091 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:12:57,091 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:12:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:12:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:12:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:12:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:12:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:12:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:12:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:12:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:12:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:12:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:12:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:12:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:12:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:12:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:12:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:12:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:12:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:12:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:12:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:12:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:12:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:12:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:12:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:12:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:12:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:12:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:12:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:12:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:12:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:12:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:12:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:12:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:12:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:12:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:12:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:12:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:12:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:12:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:12:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:12:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:12:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:12:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:12:57,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:12:57,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:12:57,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:12:57,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:12:57,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:12:57,105 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:12:57,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:57,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:57,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:57,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:12:57,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:12:57,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:12:57,107 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:12:57,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:12:57,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:12:57,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:12:57,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:12:57,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:12:57,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:12:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:12:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:12:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:12:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:12:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:12:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:12:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:12:57,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:12:57,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:12:57,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:12:57,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:12:57,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:12:57,110 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:12:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:12:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:12:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:12:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:12:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:12:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:12:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:12:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:12:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:12:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:12:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:12:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:12:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:12:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:12:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:12:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:12:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:12:57,114 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:12:57,114 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:12:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:12:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:12:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:12:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:12:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:12:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:12:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:12:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:12:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:12:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:12:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:12:57,119 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:12:57,122 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:12:57,122 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:12:57,123 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:12:57,123 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:12:57,123 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:12:57,123 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:12:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:12:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:12:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:12:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:12:57,128 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:12:57,128 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:12:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:12:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:12:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:12:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:12:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:12:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:12:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:12:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:12:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:12:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:12:57,131 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:12:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:12:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:12:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:12:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:12:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:12:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:12:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:12:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:12:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:12:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:12:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:12:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:57,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:12:57,137 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:12:57,137 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:12:57,137 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:12:57,137 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:12:57,137 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:12:57,137 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:12:57,137 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:12:57,138 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:57,138 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:12:57,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:12:57,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:12:57,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:12:57,138 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:12:57,139 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:12:57,139 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:12:57,139 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:12:57,139 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:12:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:12:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:12:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:12:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:12:57,140 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:12:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:12:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:12:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:12:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:12:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:12:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:12:57,141 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:12:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:12:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:12:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:12:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:12:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:12:57,142 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:12:57,143 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:12:57,143 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:12:57,143 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:12:57,145 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:12:57,145 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:12:57,145 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:12:57,145 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:12:57,145 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:12:57,145 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:12:57,145 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:12:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:12:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:12:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:12:57,146 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:12:57,147 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:12:57,147 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:12:57,147 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:12:57,147 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:12:57,147 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:12:57,147 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:12:57,148 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:12:57,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:57,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:12:57,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:12:57,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:12:57,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:12:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:12:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:12:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:12:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:12:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:12:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:12:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:12:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:12:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:12:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:12:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:12:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:12:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:12:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:12:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:12:57,151 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:12:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:12:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:12:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:12:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:12:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:12:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:12:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:13:01,878 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:13:01,879 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:13:01,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:13:01 BoogieIcfgContainer [2019-10-13 23:13:01,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:13:01,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:13:01,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:13:01,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:13:01,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:12:55" (1/3) ... [2019-10-13 23:13:01,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ffab67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:13:01, skipping insertion in model container [2019-10-13 23:13:01,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:56" (2/3) ... [2019-10-13 23:13:01,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ffab67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:13:01, skipping insertion in model container [2019-10-13 23:13:01,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:13:01" (3/3) ... [2019-10-13 23:13:01,890 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product35.cil.c [2019-10-13 23:13:01,903 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:13:01,913 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:13:01,925 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:13:01,962 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:13:01,962 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:13:01,962 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:13:01,963 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:13:01,963 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:13:01,963 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:13:01,963 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:13:01,963 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:13:01,998 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states. [2019-10-13 23:13:02,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-13 23:13:02,015 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:02,016 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] [2019-10-13 23:13:02,018 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:02,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:02,024 INFO L82 PathProgramCache]: Analyzing trace with hash 670570149, now seen corresponding path program 1 times [2019-10-13 23:13:02,034 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:02,034 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208734682] [2019-10-13 23:13:02,034 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:02,034 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:02,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:02,685 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:02,685 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208734682] [2019-10-13 23:13:02,686 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:02,687 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:13:02,687 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313519834] [2019-10-13 23:13:02,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:13:02,692 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:02,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:13:02,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:13:02,710 INFO L87 Difference]: Start difference. First operand 482 states. Second operand 2 states. [2019-10-13 23:13:02,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:02,795 INFO L93 Difference]: Finished difference Result 739 states and 881 transitions. [2019-10-13 23:13:02,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:13:02,797 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-10-13 23:13:02,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:02,826 INFO L225 Difference]: With dead ends: 739 [2019-10-13 23:13:02,826 INFO L226 Difference]: Without dead ends: 455 [2019-10-13 23:13:02,833 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:13:02,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2019-10-13 23:13:02,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2019-10-13 23:13:02,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2019-10-13 23:13:02,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 538 transitions. [2019-10-13 23:13:02,921 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 538 transitions. Word has length 132 [2019-10-13 23:13:02,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:02,924 INFO L462 AbstractCegarLoop]: Abstraction has 455 states and 538 transitions. [2019-10-13 23:13:02,924 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:13:02,924 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 538 transitions. [2019-10-13 23:13:02,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-13 23:13:02,932 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:02,932 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] [2019-10-13 23:13:02,932 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:02,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:02,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1391113483, now seen corresponding path program 1 times [2019-10-13 23:13:02,935 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:02,936 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804669516] [2019-10-13 23:13:02,936 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:02,936 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:02,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:03,194 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:03,195 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804669516] [2019-10-13 23:13:03,195 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:03,195 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:03,195 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250039647] [2019-10-13 23:13:03,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:03,200 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:03,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:03,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:03,200 INFO L87 Difference]: Start difference. First operand 455 states and 538 transitions. Second operand 3 states. [2019-10-13 23:13:03,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:03,287 INFO L93 Difference]: Finished difference Result 724 states and 849 transitions. [2019-10-13 23:13:03,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:03,288 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-10-13 23:13:03,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:03,297 INFO L225 Difference]: With dead ends: 724 [2019-10-13 23:13:03,297 INFO L226 Difference]: Without dead ends: 457 [2019-10-13 23:13:03,300 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:03,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2019-10-13 23:13:03,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2019-10-13 23:13:03,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2019-10-13 23:13:03,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 540 transitions. [2019-10-13 23:13:03,340 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 540 transitions. Word has length 133 [2019-10-13 23:13:03,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:03,340 INFO L462 AbstractCegarLoop]: Abstraction has 457 states and 540 transitions. [2019-10-13 23:13:03,340 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:03,341 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 540 transitions. [2019-10-13 23:13:03,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-13 23:13:03,344 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:03,345 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:03,345 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:03,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:03,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1810896350, now seen corresponding path program 1 times [2019-10-13 23:13:03,345 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:03,346 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232969044] [2019-10-13 23:13:03,346 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:03,346 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:03,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:03,596 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:03,597 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232969044] [2019-10-13 23:13:03,597 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:03,597 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:03,598 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568920299] [2019-10-13 23:13:03,599 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:03,599 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:03,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:03,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:03,600 INFO L87 Difference]: Start difference. First operand 457 states and 540 transitions. Second operand 3 states. [2019-10-13 23:13:03,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:03,662 INFO L93 Difference]: Finished difference Result 900 states and 1093 transitions. [2019-10-13 23:13:03,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:03,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2019-10-13 23:13:03,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:03,668 INFO L225 Difference]: With dead ends: 900 [2019-10-13 23:13:03,668 INFO L226 Difference]: Without dead ends: 501 [2019-10-13 23:13:03,670 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:03,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2019-10-13 23:13:03,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 500. [2019-10-13 23:13:03,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2019-10-13 23:13:03,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 614 transitions. [2019-10-13 23:13:03,714 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 614 transitions. Word has length 145 [2019-10-13 23:13:03,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:03,714 INFO L462 AbstractCegarLoop]: Abstraction has 500 states and 614 transitions. [2019-10-13 23:13:03,714 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:03,715 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 614 transitions. [2019-10-13 23:13:03,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 23:13:03,718 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:03,718 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:03,719 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:03,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:03,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1725128397, now seen corresponding path program 1 times [2019-10-13 23:13:03,719 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:03,720 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030238971] [2019-10-13 23:13:03,720 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:03,720 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:03,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:04,030 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:13:04,031 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030238971] [2019-10-13 23:13:04,031 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:04,031 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:04,032 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338239205] [2019-10-13 23:13:04,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:04,035 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:04,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:04,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:04,036 INFO L87 Difference]: Start difference. First operand 500 states and 614 transitions. Second operand 3 states. [2019-10-13 23:13:04,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:04,100 INFO L93 Difference]: Finished difference Result 836 states and 1009 transitions. [2019-10-13 23:13:04,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:04,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-13 23:13:04,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:04,112 INFO L225 Difference]: With dead ends: 836 [2019-10-13 23:13:04,112 INFO L226 Difference]: Without dead ends: 581 [2019-10-13 23:13:04,114 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 [2019-10-13 23:13:04,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2019-10-13 23:13:04,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 580. [2019-10-13 23:13:04,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2019-10-13 23:13:04,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 705 transitions. [2019-10-13 23:13:04,181 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 705 transitions. Word has length 146 [2019-10-13 23:13:04,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:04,184 INFO L462 AbstractCegarLoop]: Abstraction has 580 states and 705 transitions. [2019-10-13 23:13:04,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:04,185 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 705 transitions. [2019-10-13 23:13:04,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2019-10-13 23:13:04,199 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:04,201 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:04,202 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:04,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:04,202 INFO L82 PathProgramCache]: Analyzing trace with hash 945482337, now seen corresponding path program 1 times [2019-10-13 23:13:04,203 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:04,203 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563535164] [2019-10-13 23:13:04,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:04,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:04,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:04,844 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:04,845 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563535164] [2019-10-13 23:13:04,845 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:04,845 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 23:13:04,845 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211989539] [2019-10-13 23:13:04,847 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:13:04,847 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:04,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:13:04,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:13:04,848 INFO L87 Difference]: Start difference. First operand 580 states and 705 transitions. Second operand 14 states. [2019-10-13 23:13:08,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:08,767 INFO L93 Difference]: Finished difference Result 1393 states and 1682 transitions. [2019-10-13 23:13:08,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:13:08,768 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 266 [2019-10-13 23:13:08,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:08,776 INFO L225 Difference]: With dead ends: 1393 [2019-10-13 23:13:08,776 INFO L226 Difference]: Without dead ends: 1080 [2019-10-13 23:13:08,778 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-13 23:13:08,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2019-10-13 23:13:08,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1071. [2019-10-13 23:13:08,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1071 states. [2019-10-13 23:13:08,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1310 transitions. [2019-10-13 23:13:08,847 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1310 transitions. Word has length 266 [2019-10-13 23:13:08,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:08,847 INFO L462 AbstractCegarLoop]: Abstraction has 1071 states and 1310 transitions. [2019-10-13 23:13:08,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:13:08,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1310 transitions. [2019-10-13 23:13:08,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2019-10-13 23:13:08,854 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:08,855 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:08,855 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:08,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:08,856 INFO L82 PathProgramCache]: Analyzing trace with hash 862060710, now seen corresponding path program 1 times [2019-10-13 23:13:08,856 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:08,856 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658522327] [2019-10-13 23:13:08,857 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:08,857 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:08,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:09,123 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:09,124 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658522327] [2019-10-13 23:13:09,125 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:09,126 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:09,126 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527052187] [2019-10-13 23:13:09,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:09,127 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:09,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:09,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:09,128 INFO L87 Difference]: Start difference. First operand 1071 states and 1310 transitions. Second operand 3 states. [2019-10-13 23:13:09,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:09,208 INFO L93 Difference]: Finished difference Result 2248 states and 2841 transitions. [2019-10-13 23:13:09,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:09,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2019-10-13 23:13:09,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:09,219 INFO L225 Difference]: With dead ends: 2248 [2019-10-13 23:13:09,219 INFO L226 Difference]: Without dead ends: 1235 [2019-10-13 23:13:09,224 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:09,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2019-10-13 23:13:09,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 1233. [2019-10-13 23:13:09,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1233 states. [2019-10-13 23:13:09,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1588 transitions. [2019-10-13 23:13:09,314 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1588 transitions. Word has length 281 [2019-10-13 23:13:09,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:09,315 INFO L462 AbstractCegarLoop]: Abstraction has 1233 states and 1588 transitions. [2019-10-13 23:13:09,315 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:09,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1588 transitions. [2019-10-13 23:13:09,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2019-10-13 23:13:09,324 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:09,324 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:09,325 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:09,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:09,325 INFO L82 PathProgramCache]: Analyzing trace with hash 312490161, now seen corresponding path program 1 times [2019-10-13 23:13:09,325 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:09,325 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059312849] [2019-10-13 23:13:09,326 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:09,326 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:09,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:09,539 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:09,540 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059312849] [2019-10-13 23:13:09,540 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:09,540 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:09,540 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149176112] [2019-10-13 23:13:09,541 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:09,541 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:09,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:09,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:09,542 INFO L87 Difference]: Start difference. First operand 1233 states and 1588 transitions. Second operand 3 states. [2019-10-13 23:13:09,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:09,620 INFO L93 Difference]: Finished difference Result 2722 states and 3655 transitions. [2019-10-13 23:13:09,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:09,621 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 282 [2019-10-13 23:13:09,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:09,630 INFO L225 Difference]: With dead ends: 2722 [2019-10-13 23:13:09,631 INFO L226 Difference]: Without dead ends: 1547 [2019-10-13 23:13:09,635 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:09,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2019-10-13 23:13:09,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1545. [2019-10-13 23:13:09,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1545 states. [2019-10-13 23:13:09,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2120 transitions. [2019-10-13 23:13:09,723 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2120 transitions. Word has length 282 [2019-10-13 23:13:09,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:09,724 INFO L462 AbstractCegarLoop]: Abstraction has 1545 states and 2120 transitions. [2019-10-13 23:13:09,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:09,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2120 transitions. [2019-10-13 23:13:09,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2019-10-13 23:13:09,733 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:09,734 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:09,734 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:09,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:09,735 INFO L82 PathProgramCache]: Analyzing trace with hash 527919014, now seen corresponding path program 1 times [2019-10-13 23:13:09,735 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:09,735 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941803179] [2019-10-13 23:13:09,735 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:09,735 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:09,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:10,014 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:10,015 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941803179] [2019-10-13 23:13:10,015 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:10,015 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:10,015 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62376991] [2019-10-13 23:13:10,016 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:10,017 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:10,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:10,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:10,017 INFO L87 Difference]: Start difference. First operand 1545 states and 2120 transitions. Second operand 3 states. [2019-10-13 23:13:10,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:10,121 INFO L93 Difference]: Finished difference Result 3634 states and 5211 transitions. [2019-10-13 23:13:10,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:10,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 283 [2019-10-13 23:13:10,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:10,138 INFO L225 Difference]: With dead ends: 3634 [2019-10-13 23:13:10,139 INFO L226 Difference]: Without dead ends: 2147 [2019-10-13 23:13:10,147 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:10,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states. [2019-10-13 23:13:10,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 2145. [2019-10-13 23:13:10,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2145 states. [2019-10-13 23:13:10,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 3136 transitions. [2019-10-13 23:13:10,304 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 3136 transitions. Word has length 283 [2019-10-13 23:13:10,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:10,304 INFO L462 AbstractCegarLoop]: Abstraction has 2145 states and 3136 transitions. [2019-10-13 23:13:10,305 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:10,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 3136 transitions. [2019-10-13 23:13:10,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-10-13 23:13:10,320 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:10,320 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:10,321 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:10,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:10,321 INFO L82 PathProgramCache]: Analyzing trace with hash 419724721, now seen corresponding path program 1 times [2019-10-13 23:13:10,321 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:10,321 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529429366] [2019-10-13 23:13:10,322 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:10,322 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:10,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:10,525 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:10,525 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529429366] [2019-10-13 23:13:10,525 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:10,526 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:10,526 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331819457] [2019-10-13 23:13:10,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:10,527 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:10,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:10,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:10,528 INFO L87 Difference]: Start difference. First operand 2145 states and 3136 transitions. Second operand 3 states. [2019-10-13 23:13:10,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:10,697 INFO L93 Difference]: Finished difference Result 5386 states and 8179 transitions. [2019-10-13 23:13:10,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:10,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 284 [2019-10-13 23:13:10,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:10,780 INFO L225 Difference]: With dead ends: 5386 [2019-10-13 23:13:10,780 INFO L226 Difference]: Without dead ends: 3299 [2019-10-13 23:13:10,789 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:10,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2019-10-13 23:13:10,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 3297. [2019-10-13 23:13:10,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3297 states. [2019-10-13 23:13:10,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3297 states to 3297 states and 5072 transitions. [2019-10-13 23:13:10,963 INFO L78 Accepts]: Start accepts. Automaton has 3297 states and 5072 transitions. Word has length 284 [2019-10-13 23:13:10,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:10,963 INFO L462 AbstractCegarLoop]: Abstraction has 3297 states and 5072 transitions. [2019-10-13 23:13:10,964 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:10,964 INFO L276 IsEmpty]: Start isEmpty. Operand 3297 states and 5072 transitions. [2019-10-13 23:13:10,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2019-10-13 23:13:10,983 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:10,984 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:10,984 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:10,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:10,984 INFO L82 PathProgramCache]: Analyzing trace with hash 587560614, now seen corresponding path program 1 times [2019-10-13 23:13:10,985 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:10,985 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31761776] [2019-10-13 23:13:10,985 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:10,985 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:10,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:11,178 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:11,179 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31761776] [2019-10-13 23:13:11,179 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:11,179 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:11,180 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021312621] [2019-10-13 23:13:11,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:11,181 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:11,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:11,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:11,181 INFO L87 Difference]: Start difference. First operand 3297 states and 5072 transitions. Second operand 3 states. [2019-10-13 23:13:11,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:11,395 INFO L93 Difference]: Finished difference Result 8746 states and 13827 transitions. [2019-10-13 23:13:11,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:11,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 285 [2019-10-13 23:13:11,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:11,432 INFO L225 Difference]: With dead ends: 8746 [2019-10-13 23:13:11,432 INFO L226 Difference]: Without dead ends: 5507 [2019-10-13 23:13:11,445 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:11,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5507 states. [2019-10-13 23:13:11,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5507 to 5505. [2019-10-13 23:13:11,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5505 states. [2019-10-13 23:13:11,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5505 states to 5505 states and 8752 transitions. [2019-10-13 23:13:11,899 INFO L78 Accepts]: Start accepts. Automaton has 5505 states and 8752 transitions. Word has length 285 [2019-10-13 23:13:11,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:11,899 INFO L462 AbstractCegarLoop]: Abstraction has 5505 states and 8752 transitions. [2019-10-13 23:13:11,900 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:11,900 INFO L276 IsEmpty]: Start isEmpty. Operand 5505 states and 8752 transitions. [2019-10-13 23:13:11,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2019-10-13 23:13:11,932 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:11,933 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:11,933 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:11,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:11,934 INFO L82 PathProgramCache]: Analyzing trace with hash -607642959, now seen corresponding path program 1 times [2019-10-13 23:13:11,934 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:11,934 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065175591] [2019-10-13 23:13:11,934 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:11,935 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:11,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:12,125 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:12,126 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065175591] [2019-10-13 23:13:12,126 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:12,126 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:12,126 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806706173] [2019-10-13 23:13:12,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:12,127 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:12,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:12,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:12,128 INFO L87 Difference]: Start difference. First operand 5505 states and 8752 transitions. Second operand 3 states. [2019-10-13 23:13:12,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:12,502 INFO L93 Difference]: Finished difference Result 15178 states and 24547 transitions. [2019-10-13 23:13:12,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:12,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 286 [2019-10-13 23:13:12,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:12,585 INFO L225 Difference]: With dead ends: 15178 [2019-10-13 23:13:12,585 INFO L226 Difference]: Without dead ends: 9731 [2019-10-13 23:13:12,617 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:12,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9731 states. [2019-10-13 23:13:13,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9731 to 9729. [2019-10-13 23:13:13,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9729 states. [2019-10-13 23:13:13,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9729 states to 9729 states and 15728 transitions. [2019-10-13 23:13:13,413 INFO L78 Accepts]: Start accepts. Automaton has 9729 states and 15728 transitions. Word has length 286 [2019-10-13 23:13:13,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:13,414 INFO L462 AbstractCegarLoop]: Abstraction has 9729 states and 15728 transitions. [2019-10-13 23:13:13,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:13,414 INFO L276 IsEmpty]: Start isEmpty. Operand 9729 states and 15728 transitions. [2019-10-13 23:13:13,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2019-10-13 23:13:13,484 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:13,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:13,485 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:13,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:13,485 INFO L82 PathProgramCache]: Analyzing trace with hash -319017562, now seen corresponding path program 1 times [2019-10-13 23:13:13,485 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:13,486 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245951039] [2019-10-13 23:13:13,486 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:13,486 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:13,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:14,315 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:14,315 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245951039] [2019-10-13 23:13:14,316 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182336319] [2019-10-13 23:13:14,316 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 [2019-10-13 23:13:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:15,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 3947 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:13:15,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:13:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-13 23:13:15,577 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:13:16,168 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:16,168 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1455213704] [2019-10-13 23:13:16,214 INFO L162 IcfgInterpreter]: Started Sifa with 234 locations of interest [2019-10-13 23:13:16,214 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:13:16,223 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:13:16,231 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:13:16,232 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs