/usr/bin/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_spec3_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:50:44,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:50:44,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:50:44,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:50:44,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:50:44,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:50:44,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:50:44,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:50:44,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:50:44,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:50:44,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:50:44,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:50:44,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:50:44,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:50:44,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:50:44,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:50:44,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:50:44,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:50:44,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:50:44,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:50:44,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:50:44,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:50:44,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:50:44,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:50:44,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:50:44,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:50:44,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:50:44,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:50:44,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:50:44,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:50:44,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:50:44,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:50:44,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:50:44,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:50:44,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:50:44,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:50:44,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:50:44,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:50:44,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:50:44,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:50:44,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:50:44,703 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 [2019-11-07 00:50:44,717 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:50:44,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:50:44,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:50:44,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:50:44,720 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:50:44,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:50:44,720 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:50:44,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:50:44,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:50:44,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:50:44,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:50:44,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:50:44,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:50:44,722 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:50:44,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:50:44,722 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:50:44,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:50:44,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:50:44,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:50:44,723 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:50:44,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:50:44,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:50:44,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:50:44,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:50:44,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:50:44,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:50:44,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:50:44,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:50:44,725 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 [2019-11-07 00:50:45,004 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:50:45,018 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:50:45,021 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:50:45,023 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:50:45,023 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:50:45,024 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product24.cil.c [2019-11-07 00:50:45,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36490373f/57bb41be351e47e8911c3ec9983a90e3/FLAG2dd681044 [2019-11-07 00:50:45,776 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:50:45,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product24.cil.c [2019-11-07 00:50:45,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36490373f/57bb41be351e47e8911c3ec9983a90e3/FLAG2dd681044 [2019-11-07 00:50:45,947 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36490373f/57bb41be351e47e8911c3ec9983a90e3 [2019-11-07 00:50:45,955 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:50:45,957 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:50:45,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:50:45,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:50:45,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:50:45,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:50:45" (1/1) ... [2019-11-07 00:50:45,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b5caa5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:45, skipping insertion in model container [2019-11-07 00:50:45,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:50:45" (1/1) ... [2019-11-07 00:50:45,974 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:50:46,053 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:50:46,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:50:46,825 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:50:46,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:50:47,056 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:50:47,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:47 WrapperNode [2019-11-07 00:50:47,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:50:47,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:50:47,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:50:47,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:50:47,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:47" (1/1) ... [2019-11-07 00:50:47,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:47" (1/1) ... [2019-11-07 00:50:47,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:47" (1/1) ... [2019-11-07 00:50:47,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:47" (1/1) ... [2019-11-07 00:50:47,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:47" (1/1) ... [2019-11-07 00:50:47,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:47" (1/1) ... [2019-11-07 00:50:47,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:47" (1/1) ... [2019-11-07 00:50:47,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:50:47,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:50:47,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:50:47,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:50:47,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:47" (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 [2019-11-07 00:50:47,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:50:47,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:50:47,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:50:47,299 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:50:47,299 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:50:47,299 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:50:47,300 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:50:47,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:50:47,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:50:47,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:50:47,301 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:50:47,301 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:50:47,301 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:50:47,301 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:50:47,301 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:50:47,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:50:47,302 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:50:47,302 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:50:47,302 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:50:47,303 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:50:47,303 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:50:47,303 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:50:47,303 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:50:47,304 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:50:47,304 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:50:47,304 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:50:47,304 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 00:50:47,304 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 00:50:47,304 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-11-07 00:50:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 00:50:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:50:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:50:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:50:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:50:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:50:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:50:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:50:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:50:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:50:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:50:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:50:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:50:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:50:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:50:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:50:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:50:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:50:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:50:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:50:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:50:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:50:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:50:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:50:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:50:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:50:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:50:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:50:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:50:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:50:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:50:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:50:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:50:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:50:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:50:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:50:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:50:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:50:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:50:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:50:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:50:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:50:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:50:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:50:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:50:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:50:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:50:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:50:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:50:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:50:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:50:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:50:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:50:47,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:50:47,313 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:50:47,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:50:47,313 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:50:47,313 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:50:47,313 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:50:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:50:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-11-07 00:50:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 00:50:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 00:50:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:50:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:50:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:50:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:50:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:50:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:50:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:50:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:50:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:50:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 00:50:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:50:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 00:50:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:50:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:50:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:50:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:50:47,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:50:47,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:50:47,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:50:47,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:50:47,317 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:50:47,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 00:50:47,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 00:50:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:50:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:50:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:50:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:50:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:50:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:50:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:50:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:50:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:50:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:50:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:50:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:50:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:50:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:50:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:50:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:50:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:50:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:50:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:50:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:50:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:50:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:50:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:50:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:50:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:50:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:50:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:50:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:50:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:50:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:50:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:50:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:50:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:50:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:50:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:50:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:50:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:50:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:50:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:50:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:50:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 00:50:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 00:50:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:50:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:50:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:50:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:50:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:50:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:50:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:50:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:50:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:50:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:50:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:50:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:50:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:50:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:50:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:50:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:50:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-11-07 00:50:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 00:50:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:50:47,326 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:50:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:50:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:50:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:50:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:50:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:50:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:50:47,327 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:50:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:50:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:50:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:50:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:50:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:50:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:50:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:50:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:50:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:50:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:50:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:50:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:50:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:50:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:50:47,330 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:50:47,330 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:50:47,330 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:50:47,330 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:50:47,330 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:50:47,330 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:50:47,330 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:50:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:50:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:50:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:50:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:50:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:50:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:50:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:50:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:50:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:50:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 00:50:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:50:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 00:50:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:50:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 00:50:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:50:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-11-07 00:50:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 00:50:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 00:50:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 00:50:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:50:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:50:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:50:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:50:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:50:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:50:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:50:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:50:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:50:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:50:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:50:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:50:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:50:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:50:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:50:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:50:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:50:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:50:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:50:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:50:47,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:50:49,481 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:50:49,481 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:50:49,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:50:49 BoogieIcfgContainer [2019-11-07 00:50:49,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:50:49,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:50:49,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:50:49,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:50:49,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:50:45" (1/3) ... [2019-11-07 00:50:49,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ebb8b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:50:49, skipping insertion in model container [2019-11-07 00:50:49,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:50:47" (2/3) ... [2019-11-07 00:50:49,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ebb8b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:50:49, skipping insertion in model container [2019-11-07 00:50:49,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:50:49" (3/3) ... [2019-11-07 00:50:49,490 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product24.cil.c [2019-11-07 00:50:49,500 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:50:49,516 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:50:49,528 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:50:49,576 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:50:49,577 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:50:49,577 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:50:49,577 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:50:49,580 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:50:49,581 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:50:49,581 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:50:49,581 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:50:49,619 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states. [2019-11-07 00:50:49,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-11-07 00:50:49,651 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:50:49,658 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:50:49,661 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:50:49,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:50:49,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1942489835, now seen corresponding path program 1 times [2019-11-07 00:50:49,679 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:50:49,679 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898091025] [2019-11-07 00:50:49,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:50:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:50,327 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:50:50,328 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898091025] [2019-11-07 00:50:50,329 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:50:50,329 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:50:50,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465353347] [2019-11-07 00:50:50,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:50:50,337 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:50:50,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:50:50,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:50:50,355 INFO L87 Difference]: Start difference. First operand 538 states. Second operand 2 states. [2019-11-07 00:50:50,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:50:50,441 INFO L93 Difference]: Finished difference Result 807 states and 1059 transitions. [2019-11-07 00:50:50,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:50:50,443 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 170 [2019-11-07 00:50:50,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:50:50,470 INFO L225 Difference]: With dead ends: 807 [2019-11-07 00:50:50,470 INFO L226 Difference]: Without dead ends: 515 [2019-11-07 00:50:50,484 INFO L630 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 [2019-11-07 00:50:50,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2019-11-07 00:50:50,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2019-11-07 00:50:50,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2019-11-07 00:50:50,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 679 transitions. [2019-11-07 00:50:50,610 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 679 transitions. Word has length 170 [2019-11-07 00:50:50,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:50:50,613 INFO L462 AbstractCegarLoop]: Abstraction has 515 states and 679 transitions. [2019-11-07 00:50:50,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:50:50,613 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 679 transitions. [2019-11-07 00:50:50,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-11-07 00:50:50,617 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:50:50,618 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:50:50,618 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:50:50,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:50:50,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1348913643, now seen corresponding path program 1 times [2019-11-07 00:50:50,619 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:50:50,619 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622926273] [2019-11-07 00:50:50,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:50:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:50,884 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:50:50,884 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622926273] [2019-11-07 00:50:50,884 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:50:50,884 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:50:50,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311422883] [2019-11-07 00:50:50,897 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:50:50,898 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:50:50,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:50:50,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:50:50,899 INFO L87 Difference]: Start difference. First operand 515 states and 679 transitions. Second operand 3 states. [2019-11-07 00:50:50,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:50:50,985 INFO L93 Difference]: Finished difference Result 790 states and 1024 transitions. [2019-11-07 00:50:50,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:50:50,985 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-11-07 00:50:50,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:50:50,992 INFO L225 Difference]: With dead ends: 790 [2019-11-07 00:50:50,992 INFO L226 Difference]: Without dead ends: 518 [2019-11-07 00:50:50,994 INFO L630 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 [2019-11-07 00:50:50,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2019-11-07 00:50:51,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 517. [2019-11-07 00:50:51,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2019-11-07 00:50:51,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 681 transitions. [2019-11-07 00:50:51,076 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 681 transitions. Word has length 171 [2019-11-07 00:50:51,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:50:51,077 INFO L462 AbstractCegarLoop]: Abstraction has 517 states and 681 transitions. [2019-11-07 00:50:51,077 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:50:51,077 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 681 transitions. [2019-11-07 00:50:51,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-11-07 00:50:51,081 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:50:51,081 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:50:51,082 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:50:51,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:50:51,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1027787411, now seen corresponding path program 1 times [2019-11-07 00:50:51,082 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:50:51,082 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585090541] [2019-11-07 00:50:51,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:50:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:51,266 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:50:51,267 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585090541] [2019-11-07 00:50:51,267 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:50:51,267 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:50:51,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455341370] [2019-11-07 00:50:51,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:50:51,268 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:50:51,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:50:51,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:50:51,269 INFO L87 Difference]: Start difference. First operand 517 states and 681 transitions. Second operand 3 states. [2019-11-07 00:50:51,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:50:51,331 INFO L93 Difference]: Finished difference Result 1012 states and 1363 transitions. [2019-11-07 00:50:51,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:50:51,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2019-11-07 00:50:51,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:50:51,336 INFO L225 Difference]: With dead ends: 1012 [2019-11-07 00:50:51,336 INFO L226 Difference]: Without dead ends: 560 [2019-11-07 00:50:51,338 INFO L630 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 [2019-11-07 00:50:51,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2019-11-07 00:50:51,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 559. [2019-11-07 00:50:51,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2019-11-07 00:50:51,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 753 transitions. [2019-11-07 00:50:51,370 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 753 transitions. Word has length 183 [2019-11-07 00:50:51,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:50:51,371 INFO L462 AbstractCegarLoop]: Abstraction has 559 states and 753 transitions. [2019-11-07 00:50:51,371 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:50:51,371 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 753 transitions. [2019-11-07 00:50:51,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-11-07 00:50:51,380 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:50:51,380 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:50:51,380 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:50:51,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:50:51,381 INFO L82 PathProgramCache]: Analyzing trace with hash -595670773, now seen corresponding path program 1 times [2019-11-07 00:50:51,381 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:50:51,381 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587113686] [2019-11-07 00:50:51,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:50:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:51,651 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:50:51,657 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587113686] [2019-11-07 00:50:51,657 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:50:51,658 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:50:51,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966087147] [2019-11-07 00:50:51,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:50:51,659 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:50:51,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:50:51,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:50:51,664 INFO L87 Difference]: Start difference. First operand 559 states and 753 transitions. Second operand 3 states. [2019-11-07 00:50:51,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:50:51,719 INFO L93 Difference]: Finished difference Result 1135 states and 1574 transitions. [2019-11-07 00:50:51,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:50:51,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2019-11-07 00:50:51,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:50:51,729 INFO L225 Difference]: With dead ends: 1135 [2019-11-07 00:50:51,730 INFO L226 Difference]: Without dead ends: 641 [2019-11-07 00:50:51,733 INFO L630 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 [2019-11-07 00:50:51,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2019-11-07 00:50:51,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 640. [2019-11-07 00:50:51,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2019-11-07 00:50:51,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 891 transitions. [2019-11-07 00:50:51,835 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 891 transitions. Word has length 184 [2019-11-07 00:50:51,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:50:51,835 INFO L462 AbstractCegarLoop]: Abstraction has 640 states and 891 transitions. [2019-11-07 00:50:51,836 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:50:51,836 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 891 transitions. [2019-11-07 00:50:51,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-11-07 00:50:51,843 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:50:51,843 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:50:51,843 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:50:51,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:50:51,844 INFO L82 PathProgramCache]: Analyzing trace with hash -514709101, now seen corresponding path program 1 times [2019-11-07 00:50:51,844 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:50:51,845 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006985167] [2019-11-07 00:50:51,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:50:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:50:52,192 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-07 00:50:52,193 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006985167] [2019-11-07 00:50:52,193 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:50:52,193 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 00:50:52,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551123225] [2019-11-07 00:50:52,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 00:50:52,194 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:50:52,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 00:50:52,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-11-07 00:50:52,195 INFO L87 Difference]: Start difference. First operand 640 states and 891 transitions. Second operand 12 states. [2019-11-07 00:51:03,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:03,600 INFO L93 Difference]: Finished difference Result 2776 states and 3656 transitions. [2019-11-07 00:51:03,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-11-07 00:51:03,601 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 187 [2019-11-07 00:51:03,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:03,615 INFO L225 Difference]: With dead ends: 2776 [2019-11-07 00:51:03,615 INFO L226 Difference]: Without dead ends: 2190 [2019-11-07 00:51:03,619 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=330, Invalid=1310, Unknown=0, NotChecked=0, Total=1640 [2019-11-07 00:51:03,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2019-11-07 00:51:03,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 2171. [2019-11-07 00:51:03,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2171 states. [2019-11-07 00:51:03,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2171 states to 2171 states and 2846 transitions. [2019-11-07 00:51:03,744 INFO L78 Accepts]: Start accepts. Automaton has 2171 states and 2846 transitions. Word has length 187 [2019-11-07 00:51:03,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:03,745 INFO L462 AbstractCegarLoop]: Abstraction has 2171 states and 2846 transitions. [2019-11-07 00:51:03,745 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 00:51:03,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2171 states and 2846 transitions. [2019-11-07 00:51:03,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-11-07 00:51:03,750 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:03,750 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:03,750 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:03,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:03,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1312677304, now seen corresponding path program 1 times [2019-11-07 00:51:03,751 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:03,751 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299596431] [2019-11-07 00:51:03,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:04,030 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-07 00:51:04,030 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299596431] [2019-11-07 00:51:04,030 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:51:04,030 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-11-07 00:51:04,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61856021] [2019-11-07 00:51:04,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-07 00:51:04,031 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:04,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-07 00:51:04,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-11-07 00:51:04,032 INFO L87 Difference]: Start difference. First operand 2171 states and 2846 transitions. Second operand 16 states. [2019-11-07 00:51:04,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:04,414 INFO L93 Difference]: Finished difference Result 3633 states and 4724 transitions. [2019-11-07 00:51:04,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-07 00:51:04,414 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 188 [2019-11-07 00:51:04,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:04,424 INFO L225 Difference]: With dead ends: 3633 [2019-11-07 00:51:04,425 INFO L226 Difference]: Without dead ends: 1434 [2019-11-07 00:51:04,433 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-11-07 00:51:04,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2019-11-07 00:51:04,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1316. [2019-11-07 00:51:04,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1316 states. [2019-11-07 00:51:04,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 1750 transitions. [2019-11-07 00:51:04,582 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 1750 transitions. Word has length 188 [2019-11-07 00:51:04,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:04,583 INFO L462 AbstractCegarLoop]: Abstraction has 1316 states and 1750 transitions. [2019-11-07 00:51:04,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-07 00:51:04,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 1750 transitions. [2019-11-07 00:51:04,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-11-07 00:51:04,587 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:04,587 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:04,587 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:04,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:04,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1075046483, now seen corresponding path program 1 times [2019-11-07 00:51:04,588 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:04,588 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316516474] [2019-11-07 00:51:04,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:06,912 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-07 00:51:06,912 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316516474] [2019-11-07 00:51:06,913 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494744323] [2019-11-07 00:51:06,913 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 [2019-11-07 00:51:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:07,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 2707 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 00:51:07,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:51:07,958 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 00:51:07,958 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:51:08,394 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:51:08,543 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:08,745 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:08,942 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 00:51:08,943 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:51:08,943 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [55, 9] total 67 [2019-11-07 00:51:08,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447815510] [2019-11-07 00:51:08,944 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 00:51:08,944 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:08,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 00:51:08,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=4248, Unknown=0, NotChecked=0, Total=4422 [2019-11-07 00:51:08,946 INFO L87 Difference]: Start difference. First operand 1316 states and 1750 transitions. Second operand 9 states. [2019-11-07 00:51:11,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:11,595 INFO L93 Difference]: Finished difference Result 2610 states and 3480 transitions. [2019-11-07 00:51:11,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 00:51:11,596 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 197 [2019-11-07 00:51:11,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:11,604 INFO L225 Difference]: With dead ends: 2610 [2019-11-07 00:51:11,605 INFO L226 Difference]: Without dead ends: 1330 [2019-11-07 00:51:11,611 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 382 SyntacticMatches, 6 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=201, Invalid=4629, Unknown=0, NotChecked=0, Total=4830 [2019-11-07 00:51:11,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2019-11-07 00:51:11,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1330. [2019-11-07 00:51:11,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1330 states. [2019-11-07 00:51:11,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1768 transitions. [2019-11-07 00:51:11,684 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1768 transitions. Word has length 197 [2019-11-07 00:51:11,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:11,685 INFO L462 AbstractCegarLoop]: Abstraction has 1330 states and 1768 transitions. [2019-11-07 00:51:11,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 00:51:11,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1768 transitions. [2019-11-07 00:51:11,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-11-07 00:51:11,690 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:11,690 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:51:11,907 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:51:11,907 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:11,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:11,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1672112224, now seen corresponding path program 1 times [2019-11-07 00:51:11,908 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:11,908 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659226557] [2019-11-07 00:51:11,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:14,633 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-07 00:51:14,633 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659226557] [2019-11-07 00:51:14,634 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386815837] [2019-11-07 00:51:14,634 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 [2019-11-07 00:51:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:15,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 2708 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-07 00:51:15,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:51:15,484 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 00:51:15,485 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:51:15,825 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:15,938 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:51:15,989 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 00:51:15,989 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:51:15,989 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [53, 7] total 61 [2019-11-07 00:51:15,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235844876] [2019-11-07 00:51:15,990 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:51:15,991 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:15,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:51:15,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=3511, Unknown=0, NotChecked=0, Total=3660 [2019-11-07 00:51:15,992 INFO L87 Difference]: Start difference. First operand 1330 states and 1768 transitions. Second operand 7 states. [2019-11-07 00:51:17,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:51:17,294 INFO L93 Difference]: Finished difference Result 2611 states and 3486 transitions. [2019-11-07 00:51:17,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:51:17,295 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2019-11-07 00:51:17,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:51:17,304 INFO L225 Difference]: With dead ends: 2611 [2019-11-07 00:51:17,304 INFO L226 Difference]: Without dead ends: 1332 [2019-11-07 00:51:17,313 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 389 SyntacticMatches, 5 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=167, Invalid=3739, Unknown=0, NotChecked=0, Total=3906 [2019-11-07 00:51:17,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2019-11-07 00:51:17,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1332. [2019-11-07 00:51:17,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1332 states. [2019-11-07 00:51:17,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1771 transitions. [2019-11-07 00:51:17,383 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1771 transitions. Word has length 198 [2019-11-07 00:51:17,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:51:17,386 INFO L462 AbstractCegarLoop]: Abstraction has 1332 states and 1771 transitions. [2019-11-07 00:51:17,386 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:51:17,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1771 transitions. [2019-11-07 00:51:17,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-11-07 00:51:17,391 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:51:17,391 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-11-07 00:51:17,597 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:51:17,598 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:51:17,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:51:17,598 INFO L82 PathProgramCache]: Analyzing trace with hash -2035221596, now seen corresponding path program 1 times [2019-11-07 00:51:17,598 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:51:17,599 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991022390] [2019-11-07 00:51:17,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:51:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:51:19,404 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-07 00:51:19,405 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991022390] [2019-11-07 00:51:19,405 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:51:19,405 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2019-11-07 00:51:19,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256108524] [2019-11-07 00:51:19,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 48 states [2019-11-07 00:51:19,406 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:51:19,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2019-11-07 00:51:19,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=2160, Unknown=0, NotChecked=0, Total=2256 [2019-11-07 00:51:19,408 INFO L87 Difference]: Start difference. First operand 1332 states and 1771 transitions. Second operand 48 states.