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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:12:39,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:12:39,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:12:39,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:12:39,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:12:39,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:12:39,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:12:39,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:12:39,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:12:39,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:12:39,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:12:39,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:12:39,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:12:39,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:12:39,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:12:39,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:12:39,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:12:39,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:12:39,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:12:39,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:12:39,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:12:39,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:12:39,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:12:39,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:12:39,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:12:39,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:12:39,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:12:39,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:12:39,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:12:39,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:12:39,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:12:39,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:12:39,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:12:39,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:12:39,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:12:39,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:12:39,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:12:39,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:12:39,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:12:39,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:12:39,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:12:39,351 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:12:39,386 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:12:39,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:12:39,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:12:39,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:12:39,390 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:12:39,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:12:39,390 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:12:39,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:12:39,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:12:39,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:12:39,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:12:39,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:12:39,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:12:39,394 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:12:39,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:12:39,394 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:12:39,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:12:39,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:12:39,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:12:39,395 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:12:39,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:12:39,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:39,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:12:39,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:12:39,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:12:39,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:12:39,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:12:39,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:12:39,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:12:39,682 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:12:39,708 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:12:39,714 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:12:39,716 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:12:39,717 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:12:39,717 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product33.cil.c [2019-10-15 01:12:39,800 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2459c44a1/16e05acbb2fc44c1a7b612bd272c9f80/FLAG88800c48c [2019-10-15 01:12:40,472 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:12:40,473 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product33.cil.c [2019-10-15 01:12:40,498 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2459c44a1/16e05acbb2fc44c1a7b612bd272c9f80/FLAG88800c48c [2019-10-15 01:12:40,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2459c44a1/16e05acbb2fc44c1a7b612bd272c9f80 [2019-10-15 01:12:40,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:12:40,664 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:12:40,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:40,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:12:40,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:12:40,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:40" (1/1) ... [2019-10-15 01:12:40,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@510c0d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:40, skipping insertion in model container [2019-10-15 01:12:40,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:40" (1/1) ... [2019-10-15 01:12:40,679 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:12:40,763 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:12:41,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:41,565 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:12:41,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:41,840 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:12:41,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:41 WrapperNode [2019-10-15 01:12:41,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:41,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:12:41,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:12:41,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:12:41,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:41" (1/1) ... [2019-10-15 01:12:41,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:41" (1/1) ... [2019-10-15 01:12:41,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:41" (1/1) ... [2019-10-15 01:12:41,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:41" (1/1) ... [2019-10-15 01:12:41,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:41" (1/1) ... [2019-10-15 01:12:42,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:41" (1/1) ... [2019-10-15 01:12:42,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:41" (1/1) ... [2019-10-15 01:12:42,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:12:42,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:12:42,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:12:42,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:12:42,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:42,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:12:42,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:12:42,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:42,151 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:12:42,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:12:42,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:12:42,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:12:42,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:12:42,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:12:42,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:12:42,153 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:12:42,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:12:42,153 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:12:42,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:12:42,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:12:42,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:12:42,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:12:42,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:12:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:12:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:12:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:12:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:12:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:12:42,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:12:42,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:12:42,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:12:42,156 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:12:42,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:12:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:12:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:12:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:12:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:12:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:12:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-15 01:12:42,157 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:12:42,158 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:12:42,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:12:42,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:12:42,158 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:12:42,158 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:12:42,158 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:12:42,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:42,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:42,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:42,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:12:42,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:12:42,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:12:42,159 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:12:42,160 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:12:42,160 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:12:42,160 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:12:42,160 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:12:42,160 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:12:42,160 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:12:42,160 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:12:42,161 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:12:42,161 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:12:42,161 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:12:42,161 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:12:42,161 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:12:42,161 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:12:42,161 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:12:42,162 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:12:42,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:12:42,162 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:12:42,162 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:12:42,162 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:12:42,162 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:12:42,163 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:12:42,163 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:12:42,163 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:12:42,163 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:12:42,163 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:12:42,163 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:12:42,163 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:12:42,164 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:12:42,164 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:12:42,164 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:12:42,164 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:12:42,164 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:12:42,164 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:12:42,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:12:42,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:12:42,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:12:42,165 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:12:42,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:12:42,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:12:42,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:12:42,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:12:42,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:12:42,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-15 01:12:42,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:12:42,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:12:42,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:42,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:12:42,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:42,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:12:42,167 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:12:42,167 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:12:42,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:12:42,167 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:12:42,168 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:12:42,168 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:12:42,168 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:12:42,168 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:12:42,168 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:12:42,168 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:12:42,169 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:12:42,169 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:12:42,169 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:12:42,169 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:12:42,169 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:12:42,169 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:12:42,169 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:12:42,169 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:12:42,170 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:12:42,170 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:12:42,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:12:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:12:42,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:12:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:12:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:12:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:12:42,173 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:12:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:12:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:12:42,175 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:12:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:12:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:12:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:12:42,176 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:12:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:12:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:12:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:12:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:12:42,177 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:12:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:12:42,185 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:12:42,186 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:12:42,186 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:12:42,186 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:12:42,186 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:12:42,187 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:12:42,187 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:12:42,196 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:12:42,196 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:12:42,196 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:12:42,196 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:12:42,197 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:12:42,197 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:12:42,197 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:12:42,198 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:12:42,198 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:12:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:12:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:12:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:12:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:12:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:12:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:12:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:12:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:12:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:12:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:12:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:12:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:12:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:12:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-15 01:12:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:12:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:12:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:12:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:12:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:12:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:12:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:12:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:12:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:12:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:12:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:12:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:12:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:12:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:12:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:12:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:12:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:12:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:12:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:12:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:12:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:12:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:12:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:12:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:12:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:12:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:12:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:12:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:12:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:12:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:12:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:12:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:12:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:12:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:12:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:12:42,208 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:12:42,208 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:12:42,208 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:12:42,208 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:12:42,208 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:12:42,210 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:12:42,210 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:12:42,210 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:12:42,211 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-15 01:12:42,212 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:12:42,212 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:12:42,212 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:12:42,212 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:12:42,212 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:12:42,212 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:12:42,213 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:12:42,213 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:12:42,213 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:12:42,213 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:12:42,213 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:12:42,213 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:12:42,213 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:12:42,214 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:12:42,214 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:12:42,214 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:12:42,214 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:12:42,214 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:12:42,214 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:12:42,215 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:12:42,215 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:12:42,215 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:12:42,215 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:12:42,215 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:12:42,215 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:12:42,216 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:12:42,216 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:12:42,216 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:12:42,216 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:12:42,216 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:12:42,216 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:42,217 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:42,217 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:12:42,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:12:42,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:12:42,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:12:44,650 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:12:44,650 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:12:44,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:44 BoogieIcfgContainer [2019-10-15 01:12:44,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:12:44,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:12:44,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:12:44,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:12:44,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:12:40" (1/3) ... [2019-10-15 01:12:44,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d4acfc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:44, skipping insertion in model container [2019-10-15 01:12:44,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:41" (2/3) ... [2019-10-15 01:12:44,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d4acfc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:44, skipping insertion in model container [2019-10-15 01:12:44,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:44" (3/3) ... [2019-10-15 01:12:44,662 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product33.cil.c [2019-10-15 01:12:44,675 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:12:44,686 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:12:44,697 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:12:44,738 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:12:44,739 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:12:44,739 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:12:44,739 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:12:44,739 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:12:44,741 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:12:44,742 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:12:44,742 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:12:44,774 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states. [2019-10-15 01:12:44,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-10-15 01:12:44,796 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:44,798 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:12:44,800 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:44,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:44,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1359243450, now seen corresponding path program 1 times [2019-10-15 01:12:44,816 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:44,816 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512979364] [2019-10-15 01:12:44,817 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:44,817 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:44,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:45,692 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:45,693 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512979364] [2019-10-15 01:12:45,694 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:45,694 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:12:45,695 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36685355] [2019-10-15 01:12:45,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:12:45,703 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:45,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:12:45,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:45,720 INFO L87 Difference]: Start difference. First operand 587 states. Second operand 2 states. [2019-10-15 01:12:45,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:45,839 INFO L93 Difference]: Finished difference Result 905 states and 1191 transitions. [2019-10-15 01:12:45,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:12:45,841 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 218 [2019-10-15 01:12:45,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:45,876 INFO L225 Difference]: With dead ends: 905 [2019-10-15 01:12:45,876 INFO L226 Difference]: Without dead ends: 564 [2019-10-15 01:12:45,887 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:45,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2019-10-15 01:12:45,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2019-10-15 01:12:45,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2019-10-15 01:12:45,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 744 transitions. [2019-10-15 01:12:45,997 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 744 transitions. Word has length 218 [2019-10-15 01:12:45,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:45,999 INFO L462 AbstractCegarLoop]: Abstraction has 564 states and 744 transitions. [2019-10-15 01:12:46,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:12:46,000 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 744 transitions. [2019-10-15 01:12:46,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-10-15 01:12:46,006 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:46,006 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:12:46,006 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:46,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:46,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1875979092, now seen corresponding path program 1 times [2019-10-15 01:12:46,007 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:46,007 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112039726] [2019-10-15 01:12:46,008 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:46,008 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:46,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:46,308 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:46,309 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112039726] [2019-10-15 01:12:46,309 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:46,309 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:46,309 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870408094] [2019-10-15 01:12:46,318 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:46,319 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:46,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:46,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:46,319 INFO L87 Difference]: Start difference. First operand 564 states and 744 transitions. Second operand 3 states. [2019-10-15 01:12:46,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:46,416 INFO L93 Difference]: Finished difference Result 888 states and 1154 transitions. [2019-10-15 01:12:46,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:46,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2019-10-15 01:12:46,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:46,426 INFO L225 Difference]: With dead ends: 888 [2019-10-15 01:12:46,426 INFO L226 Difference]: Without dead ends: 567 [2019-10-15 01:12:46,429 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:46,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2019-10-15 01:12:46,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 566. [2019-10-15 01:12:46,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2019-10-15 01:12:46,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 746 transitions. [2019-10-15 01:12:46,491 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 746 transitions. Word has length 219 [2019-10-15 01:12:46,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:46,492 INFO L462 AbstractCegarLoop]: Abstraction has 566 states and 746 transitions. [2019-10-15 01:12:46,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:46,492 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 746 transitions. [2019-10-15 01:12:46,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-10-15 01:12:46,498 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:46,498 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:46,499 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:46,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:46,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1298446294, now seen corresponding path program 1 times [2019-10-15 01:12:46,500 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:46,500 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472724771] [2019-10-15 01:12:46,500 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:46,501 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:46,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:46,769 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:46,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472724771] [2019-10-15 01:12:46,769 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:46,770 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:46,770 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409619639] [2019-10-15 01:12:46,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:46,771 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:46,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:46,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:46,772 INFO L87 Difference]: Start difference. First operand 566 states and 746 transitions. Second operand 3 states. [2019-10-15 01:12:46,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:46,810 INFO L93 Difference]: Finished difference Result 1110 states and 1493 transitions. [2019-10-15 01:12:46,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:46,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-10-15 01:12:46,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:46,815 INFO L225 Difference]: With dead ends: 1110 [2019-10-15 01:12:46,815 INFO L226 Difference]: Without dead ends: 609 [2019-10-15 01:12:46,817 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:46,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2019-10-15 01:12:46,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 608. [2019-10-15 01:12:46,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2019-10-15 01:12:46,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 818 transitions. [2019-10-15 01:12:46,847 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 818 transitions. Word has length 231 [2019-10-15 01:12:46,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:46,848 INFO L462 AbstractCegarLoop]: Abstraction has 608 states and 818 transitions. [2019-10-15 01:12:46,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:46,848 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 818 transitions. [2019-10-15 01:12:46,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-10-15 01:12:46,853 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:46,854 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:46,854 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:46,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:46,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1265412582, now seen corresponding path program 1 times [2019-10-15 01:12:46,855 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:46,855 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505773959] [2019-10-15 01:12:46,856 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:46,856 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:46,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:47,108 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:47,109 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505773959] [2019-10-15 01:12:47,109 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:47,109 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:47,110 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315545339] [2019-10-15 01:12:47,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:47,111 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:47,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:47,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:47,112 INFO L87 Difference]: Start difference. First operand 608 states and 818 transitions. Second operand 3 states. [2019-10-15 01:12:47,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:47,158 INFO L93 Difference]: Finished difference Result 1233 states and 1704 transitions. [2019-10-15 01:12:47,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:47,159 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2019-10-15 01:12:47,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:47,165 INFO L225 Difference]: With dead ends: 1233 [2019-10-15 01:12:47,165 INFO L226 Difference]: Without dead ends: 690 [2019-10-15 01:12:47,168 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:47,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2019-10-15 01:12:47,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 689. [2019-10-15 01:12:47,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2019-10-15 01:12:47,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 956 transitions. [2019-10-15 01:12:47,204 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 956 transitions. Word has length 232 [2019-10-15 01:12:47,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:47,206 INFO L462 AbstractCegarLoop]: Abstraction has 689 states and 956 transitions. [2019-10-15 01:12:47,206 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:47,206 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 956 transitions. [2019-10-15 01:12:47,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-10-15 01:12:47,215 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:47,215 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:47,216 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:47,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:47,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1880948969, now seen corresponding path program 1 times [2019-10-15 01:12:47,217 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:47,217 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99822868] [2019-10-15 01:12:47,217 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:47,217 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:47,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:47,813 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-15 01:12:47,813 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99822868] [2019-10-15 01:12:47,813 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:47,814 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:12:47,814 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685185324] [2019-10-15 01:12:47,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:12:47,815 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:47,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:12:47,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:12:47,816 INFO L87 Difference]: Start difference. First operand 689 states and 956 transitions. Second operand 19 states. [2019-10-15 01:12:53,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:53,409 INFO L93 Difference]: Finished difference Result 2335 states and 3224 transitions. [2019-10-15 01:12:53,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-15 01:12:53,417 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 235 [2019-10-15 01:12:53,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:53,443 INFO L225 Difference]: With dead ends: 2335 [2019-10-15 01:12:53,443 INFO L226 Difference]: Without dead ends: 2027 [2019-10-15 01:12:53,449 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:12:53,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2019-10-15 01:12:53,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1990. [2019-10-15 01:12:53,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1990 states. [2019-10-15 01:12:53,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2766 transitions. [2019-10-15 01:12:53,574 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2766 transitions. Word has length 235 [2019-10-15 01:12:53,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:53,578 INFO L462 AbstractCegarLoop]: Abstraction has 1990 states and 2766 transitions. [2019-10-15 01:12:53,578 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:12:53,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2766 transitions. [2019-10-15 01:12:53,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-15 01:12:53,586 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:53,586 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:53,587 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:53,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:53,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1271254735, now seen corresponding path program 1 times [2019-10-15 01:12:53,587 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:53,588 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067178500] [2019-10-15 01:12:53,588 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:53,588 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:53,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:53,862 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-15 01:12:53,863 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067178500] [2019-10-15 01:12:53,863 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:53,863 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:12:53,864 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060368835] [2019-10-15 01:12:53,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:12:53,865 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:53,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:12:53,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:12:53,866 INFO L87 Difference]: Start difference. First operand 1990 states and 2766 transitions. Second operand 11 states. [2019-10-15 01:12:54,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:54,693 INFO L93 Difference]: Finished difference Result 3347 states and 4565 transitions. [2019-10-15 01:12:54,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:12:54,693 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 236 [2019-10-15 01:12:54,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:54,717 INFO L225 Difference]: With dead ends: 3347 [2019-10-15 01:12:54,717 INFO L226 Difference]: Without dead ends: 2048 [2019-10-15 01:12:54,727 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:12:54,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2019-10-15 01:12:54,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 2048. [2019-10-15 01:12:54,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2048 states. [2019-10-15 01:12:54,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 2859 transitions. [2019-10-15 01:12:54,875 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 2859 transitions. Word has length 236 [2019-10-15 01:12:54,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:54,876 INFO L462 AbstractCegarLoop]: Abstraction has 2048 states and 2859 transitions. [2019-10-15 01:12:54,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:12:54,877 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 2859 transitions. [2019-10-15 01:12:54,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-15 01:12:54,890 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:54,890 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:54,891 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:54,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:54,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1218781435, now seen corresponding path program 1 times [2019-10-15 01:12:54,892 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:54,892 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921096400] [2019-10-15 01:12:54,892 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:54,893 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:54,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:55,327 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-15 01:12:55,328 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921096400] [2019-10-15 01:12:55,328 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:55,328 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:12:55,329 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488576935] [2019-10-15 01:12:55,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:12:55,330 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:55,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:12:55,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:12:55,332 INFO L87 Difference]: Start difference. First operand 2048 states and 2859 transitions. Second operand 15 states. [2019-10-15 01:12:59,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:59,193 INFO L93 Difference]: Finished difference Result 3460 states and 4756 transitions. [2019-10-15 01:12:59,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-15 01:12:59,194 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 236 [2019-10-15 01:12:59,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:59,209 INFO L225 Difference]: With dead ends: 3460 [2019-10-15 01:12:59,209 INFO L226 Difference]: Without dead ends: 2164 [2019-10-15 01:12:59,216 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 01:12:59,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2019-10-15 01:12:59,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 2122. [2019-10-15 01:12:59,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2122 states. [2019-10-15 01:12:59,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 2981 transitions. [2019-10-15 01:12:59,367 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 2981 transitions. Word has length 236 [2019-10-15 01:12:59,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:59,367 INFO L462 AbstractCegarLoop]: Abstraction has 2122 states and 2981 transitions. [2019-10-15 01:12:59,368 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:12:59,368 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 2981 transitions. [2019-10-15 01:12:59,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-15 01:12:59,376 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:59,376 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:59,376 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:59,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:59,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1764234845, now seen corresponding path program 1 times [2019-10-15 01:12:59,377 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:59,377 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299936030] [2019-10-15 01:12:59,378 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:59,378 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:59,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:59,708 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-15 01:12:59,708 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299936030] [2019-10-15 01:12:59,709 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:59,709 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-15 01:12:59,709 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458970813] [2019-10-15 01:12:59,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:12:59,710 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:59,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:12:59,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:12:59,711 INFO L87 Difference]: Start difference. First operand 2122 states and 2981 transitions. Second operand 16 states. [2019-10-15 01:13:00,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:00,122 INFO L93 Difference]: Finished difference Result 3562 states and 4909 transitions. [2019-10-15 01:13:00,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 01:13:00,123 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 236 [2019-10-15 01:13:00,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:00,139 INFO L225 Difference]: With dead ends: 3562 [2019-10-15 01:13:00,140 INFO L226 Difference]: Without dead ends: 2137 [2019-10-15 01:13:00,147 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:13:00,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2137 states. [2019-10-15 01:13:00,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2137 to 2109. [2019-10-15 01:13:00,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2109 states. [2019-10-15 01:13:00,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 2939 transitions. [2019-10-15 01:13:00,286 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 2939 transitions. Word has length 236 [2019-10-15 01:13:00,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:00,287 INFO L462 AbstractCegarLoop]: Abstraction has 2109 states and 2939 transitions. [2019-10-15 01:13:00,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:13:00,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 2939 transitions. [2019-10-15 01:13:00,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-15 01:13:00,307 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:00,307 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:00,308 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:00,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:00,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1072234906, now seen corresponding path program 1 times [2019-10-15 01:13:00,309 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:00,309 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949855571] [2019-10-15 01:13:00,309 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:00,309 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:00,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:00,505 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-15 01:13:00,505 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949855571] [2019-10-15 01:13:00,506 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:00,507 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:13:00,508 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102462423] [2019-10-15 01:13:00,509 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:13:00,509 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:00,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:13:00,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:13:00,510 INFO L87 Difference]: Start difference. First operand 2109 states and 2939 transitions. Second operand 5 states. [2019-10-15 01:13:01,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:01,724 INFO L93 Difference]: Finished difference Result 5198 states and 7180 transitions. [2019-10-15 01:13:01,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:13:01,724 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 236 [2019-10-15 01:13:01,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:01,754 INFO L225 Difference]: With dead ends: 5198 [2019-10-15 01:13:01,754 INFO L226 Difference]: Without dead ends: 4515 [2019-10-15 01:13:01,760 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:13:01,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4515 states. [2019-10-15 01:13:01,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4515 to 4484. [2019-10-15 01:13:01,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4484 states. [2019-10-15 01:13:02,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4484 states to 4484 states and 6217 transitions. [2019-10-15 01:13:02,011 INFO L78 Accepts]: Start accepts. Automaton has 4484 states and 6217 transitions. Word has length 236 [2019-10-15 01:13:02,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:02,012 INFO L462 AbstractCegarLoop]: Abstraction has 4484 states and 6217 transitions. [2019-10-15 01:13:02,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:13:02,012 INFO L276 IsEmpty]: Start isEmpty. Operand 4484 states and 6217 transitions. [2019-10-15 01:13:02,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-15 01:13:02,024 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:02,025 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:02,025 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:02,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:02,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1057984761, now seen corresponding path program 1 times [2019-10-15 01:13:02,026 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:02,026 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400683459] [2019-10-15 01:13:02,026 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:02,026 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:02,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:02,255 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:13:02,256 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400683459] [2019-10-15 01:13:02,256 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381718244] [2019-10-15 01:13:02,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:02,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 3032 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:13:02,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:13:03,226 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:03,226 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:13:03,621 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:13:03,711 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:03,785 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:03,913 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:13:03,914 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:13:03,914 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 9] total 20 [2019-10-15 01:13:03,915 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984399823] [2019-10-15 01:13:03,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:13:03,916 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:03,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:13:03,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2019-10-15 01:13:03,917 INFO L87 Difference]: Start difference. First operand 4484 states and 6217 transitions. Second operand 9 states. [2019-10-15 01:13:06,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:06,338 INFO L93 Difference]: Finished difference Result 8946 states and 12414 transitions. [2019-10-15 01:13:06,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:13:06,339 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 236 [2019-10-15 01:13:06,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:06,370 INFO L225 Difference]: With dead ends: 8946 [2019-10-15 01:13:06,371 INFO L226 Difference]: Without dead ends: 4498 [2019-10-15 01:13:06,385 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 465 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:13:06,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4498 states. [2019-10-15 01:13:06,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4498 to 4498. [2019-10-15 01:13:06,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4498 states. [2019-10-15 01:13:06,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 6235 transitions. [2019-10-15 01:13:06,670 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 6235 transitions. Word has length 236 [2019-10-15 01:13:06,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:06,672 INFO L462 AbstractCegarLoop]: Abstraction has 4498 states and 6235 transitions. [2019-10-15 01:13:06,672 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:13:06,672 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 6235 transitions. [2019-10-15 01:13:06,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-15 01:13:06,684 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:06,684 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:06,898 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:06,898 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:06,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:06,899 INFO L82 PathProgramCache]: Analyzing trace with hash -2058967403, now seen corresponding path program 1 times [2019-10-15 01:13:06,900 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:06,900 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682217697] [2019-10-15 01:13:06,901 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:06,901 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:06,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:07,222 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:13:07,222 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682217697] [2019-10-15 01:13:07,223 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706399383] [2019-10-15 01:13:07,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:07,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 3033 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:13:07,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:13:08,117 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:08,117 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:13:08,510 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:08,550 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:08,615 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:13:08,616 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:13:08,616 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 16 [2019-10-15 01:13:08,616 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165846030] [2019-10-15 01:13:08,617 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:13:08,617 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:08,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:13:08,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:13:08,618 INFO L87 Difference]: Start difference. First operand 4498 states and 6235 transitions. Second operand 7 states. [2019-10-15 01:13:10,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:10,165 INFO L93 Difference]: Finished difference Result 8951 states and 12434 transitions. [2019-10-15 01:13:10,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:13:10,166 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2019-10-15 01:13:10,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:10,194 INFO L225 Difference]: With dead ends: 8951 [2019-10-15 01:13:10,194 INFO L226 Difference]: Without dead ends: 4504 [2019-10-15 01:13:10,210 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 472 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:13:10,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4504 states. [2019-10-15 01:13:10,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4504 to 4504. [2019-10-15 01:13:10,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4504 states. [2019-10-15 01:13:10,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4504 states to 4504 states and 6242 transitions. [2019-10-15 01:13:10,415 INFO L78 Accepts]: Start accepts. Automaton has 4504 states and 6242 transitions. Word has length 237 [2019-10-15 01:13:10,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:10,416 INFO L462 AbstractCegarLoop]: Abstraction has 4504 states and 6242 transitions. [2019-10-15 01:13:10,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:13:10,416 INFO L276 IsEmpty]: Start isEmpty. Operand 4504 states and 6242 transitions. [2019-10-15 01:13:10,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-15 01:13:10,428 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:10,430 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:10,638 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:10,639 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:10,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:10,640 INFO L82 PathProgramCache]: Analyzing trace with hash 654423498, now seen corresponding path program 1 times [2019-10-15 01:13:10,640 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:10,641 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955221516] [2019-10-15 01:13:10,641 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:10,641 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:10,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:10,922 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:13:10,923 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955221516] [2019-10-15 01:13:10,923 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304152341] [2019-10-15 01:13:10,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true