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_spec6_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:06,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:06,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:06,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:06,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:06,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:06,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:06,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:06,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:06,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:06,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:06,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:06,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:06,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:06,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:06,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:06,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:06,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:06,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:06,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:06,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:06,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:06,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:06,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:06,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:06,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:06,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:06,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:06,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:06,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:06,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:06,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:06,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:06,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:06,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:06,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:06,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:06,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:06,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:06,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:06,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:06,911 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 01:16:06,931 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:06,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:06,936 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:06,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:06,937 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:06,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:06,938 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:06,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:06,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:06,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:06,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:06,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:06,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:06,941 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:06,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:06,941 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:06,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:06,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:06,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:06,942 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:06,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:06,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:06,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:06,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:06,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:06,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:06,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:06,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:06,944 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 01:16:07,230 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:07,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:07,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:07,257 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:07,257 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:07,258 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product15.cil.c [2019-10-15 01:16:07,347 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21e63fd5b/1502a9bb8e69413bb52c7e20774670d6/FLAG1fa2dde97 [2019-10-15 01:16:07,991 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:07,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product15.cil.c [2019-10-15 01:16:08,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21e63fd5b/1502a9bb8e69413bb52c7e20774670d6/FLAG1fa2dde97 [2019-10-15 01:16:08,220 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21e63fd5b/1502a9bb8e69413bb52c7e20774670d6 [2019-10-15 01:16:08,231 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:08,233 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:08,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:08,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:08,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:08,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:08" (1/1) ... [2019-10-15 01:16:08,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7789f9f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:08, skipping insertion in model container [2019-10-15 01:16:08,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:08" (1/1) ... [2019-10-15 01:16:08,249 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:08,335 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:09,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:09,185 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:09,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:09,372 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:16:09,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09 WrapperNode [2019-10-15 01:16:09,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:09,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:16:09,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:16:09,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:16:09,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (1/1) ... [2019-10-15 01:16:09,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (1/1) ... [2019-10-15 01:16:09,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (1/1) ... [2019-10-15 01:16:09,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (1/1) ... [2019-10-15 01:16:09,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (1/1) ... [2019-10-15 01:16:09,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (1/1) ... [2019-10-15 01:16:09,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (1/1) ... [2019-10-15 01:16:09,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:16:09,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:16:09,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:16:09,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:16:09,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (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 01:16:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:16:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:16:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:16:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:16:09,648 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:16:09,648 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:16:09,648 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:16:09,649 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:16:09,649 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:09,650 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-15 01:16:09,650 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:16:09,650 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:16:09,652 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:16:09,652 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:16:09,652 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:16:09,655 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:16:09,655 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:16:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:16:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:16:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:16:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:16:09,657 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:16:09,657 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:16:09,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:16:09,657 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:16:09,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:16:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:16:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:16:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:16:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:16:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:16:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:16:09,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:16:09,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:16:09,659 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:16:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:16:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:16:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:16:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:16:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:16:09,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:16:09,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:16:09,661 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:16:09,661 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:16:09,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:16:09,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:16:09,662 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:16:09,662 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:16:09,662 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:16:09,662 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:16:09,663 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:16:09,663 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:16:09,663 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:16:09,663 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:16:09,663 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:16:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:16:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:16:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:16:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:16:09,664 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:16:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:16:09,665 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:16:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:16:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:16:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:16:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:16:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:16:09,666 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:16:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:16:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:16:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:16:09,667 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:16:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:16:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:16:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:16:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:16:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:16:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:16:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:16:09,671 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:16:09,671 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:16:09,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:09,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:09,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:16:09,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:16:09,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:09,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:16:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:16:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:16:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:16:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:16:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:16:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:16:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:16:09,676 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:16:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:16:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:16:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:16:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:16:09,677 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:16:09,678 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:16:09,678 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:16:09,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:09,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:09,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:09,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:16:09,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:16:09,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:16:09,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:16:09,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:16:09,680 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:16:09,680 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:16:09,680 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:16:09,681 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:16:09,681 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:16:09,681 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:16:09,681 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:16:09,681 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:16:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:16:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:16:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:16:09,682 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:16:09,683 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:16:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:16:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:16:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:16:09,684 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:16:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:16:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:16:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:16:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:16:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:16:09,686 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:16:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:16:09,687 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:16:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:16:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:16:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:16:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:16:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:16:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:16:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:16:09,704 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:16:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:16:09,705 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:16:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:16:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:16:09,706 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:16:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:16:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:16:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:16:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:16:09,707 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:16:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-15 01:16:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:16:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:16:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:16:09,708 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:16:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:16:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:16:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:16:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:16:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:16:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:16:09,709 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:16:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:16:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:16:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:16:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:16:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:16:09,710 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:16:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:16:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:16:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:16:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:16:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:16:09,711 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:16:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:16:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:16:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:16:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:16:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:16:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:16:09,712 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:16:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:16:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:16:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:16:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:16:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:16:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:16:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:16:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:16:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:16:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:16:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:16:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:16:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:16:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:16:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:16:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:16:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:16:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:16:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:16:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:16:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:16:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:16:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:16:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:16:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:16:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:16:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:16:09,717 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:16:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:16:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:16:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:16:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:16:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:16:09,718 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:16:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:16:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:16:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:16:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:16:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:16:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:16:12,201 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:16:12,201 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:16:12,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:12 BoogieIcfgContainer [2019-10-15 01:16:12,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:16:12,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:16:12,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:16:12,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:16:12,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:08" (1/3) ... [2019-10-15 01:16:12,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7f58ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:12, skipping insertion in model container [2019-10-15 01:16:12,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (2/3) ... [2019-10-15 01:16:12,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7f58ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:12, skipping insertion in model container [2019-10-15 01:16:12,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:12" (3/3) ... [2019-10-15 01:16:12,212 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product15.cil.c [2019-10-15 01:16:12,222 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:16:12,232 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:16:12,245 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:16:12,275 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:16:12,275 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:16:12,275 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:16:12,275 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:16:12,275 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:16:12,276 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:16:12,276 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:16:12,276 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:16:12,305 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states. [2019-10-15 01:16:12,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-15 01:16:12,332 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:12,333 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 01:16:12,336 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:12,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:12,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1208653577, now seen corresponding path program 1 times [2019-10-15 01:16:12,356 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:12,356 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310345125] [2019-10-15 01:16:12,357 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:12,357 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:12,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:13,063 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:13,064 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310345125] [2019-10-15 01:16:13,066 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:13,066 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:16:13,066 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076968193] [2019-10-15 01:16:13,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:16:13,075 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:13,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:16:13,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:13,093 INFO L87 Difference]: Start difference. First operand 474 states. Second operand 2 states. [2019-10-15 01:16:13,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:13,243 INFO L93 Difference]: Finished difference Result 642 states and 852 transitions. [2019-10-15 01:16:13,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:16:13,244 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 176 [2019-10-15 01:16:13,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:13,282 INFO L225 Difference]: With dead ends: 642 [2019-10-15 01:16:13,282 INFO L226 Difference]: Without dead ends: 427 [2019-10-15 01:16:13,293 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 01:16:13,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2019-10-15 01:16:13,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2019-10-15 01:16:13,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2019-10-15 01:16:13,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 570 transitions. [2019-10-15 01:16:13,425 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 570 transitions. Word has length 176 [2019-10-15 01:16:13,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:13,428 INFO L462 AbstractCegarLoop]: Abstraction has 427 states and 570 transitions. [2019-10-15 01:16:13,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:16:13,429 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 570 transitions. [2019-10-15 01:16:13,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-15 01:16:13,435 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:13,436 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 01:16:13,436 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:13,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:13,436 INFO L82 PathProgramCache]: Analyzing trace with hash -819004996, now seen corresponding path program 1 times [2019-10-15 01:16:13,437 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:13,437 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622815295] [2019-10-15 01:16:13,437 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:13,437 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:13,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:13,697 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:13,697 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622815295] [2019-10-15 01:16:13,698 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:13,698 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:13,698 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131783931] [2019-10-15 01:16:13,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:13,704 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:13,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:13,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:13,705 INFO L87 Difference]: Start difference. First operand 427 states and 570 transitions. Second operand 3 states. [2019-10-15 01:16:13,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:13,786 INFO L93 Difference]: Finished difference Result 625 states and 820 transitions. [2019-10-15 01:16:13,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:13,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-10-15 01:16:13,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:13,796 INFO L225 Difference]: With dead ends: 625 [2019-10-15 01:16:13,796 INFO L226 Difference]: Without dead ends: 430 [2019-10-15 01:16:13,800 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 01:16:13,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2019-10-15 01:16:13,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 429. [2019-10-15 01:16:13,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2019-10-15 01:16:13,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 572 transitions. [2019-10-15 01:16:13,841 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 572 transitions. Word has length 177 [2019-10-15 01:16:13,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:13,842 INFO L462 AbstractCegarLoop]: Abstraction has 429 states and 572 transitions. [2019-10-15 01:16:13,842 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:13,843 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 572 transitions. [2019-10-15 01:16:13,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-15 01:16:13,847 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:13,847 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:16:13,848 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:13,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:13,848 INFO L82 PathProgramCache]: Analyzing trace with hash 2130216492, now seen corresponding path program 1 times [2019-10-15 01:16:13,848 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:13,849 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840644842] [2019-10-15 01:16:13,849 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:13,849 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:13,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:14,079 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:14,080 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840644842] [2019-10-15 01:16:14,080 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:14,080 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:14,081 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355856640] [2019-10-15 01:16:14,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:14,086 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:14,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:14,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:14,087 INFO L87 Difference]: Start difference. First operand 429 states and 572 transitions. Second operand 3 states. [2019-10-15 01:16:14,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:14,146 INFO L93 Difference]: Finished difference Result 834 states and 1142 transitions. [2019-10-15 01:16:14,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:14,147 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2019-10-15 01:16:14,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:14,158 INFO L225 Difference]: With dead ends: 834 [2019-10-15 01:16:14,159 INFO L226 Difference]: Without dead ends: 470 [2019-10-15 01:16:14,161 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 01:16:14,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2019-10-15 01:16:14,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 469. [2019-10-15 01:16:14,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2019-10-15 01:16:14,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 641 transitions. [2019-10-15 01:16:14,213 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 641 transitions. Word has length 187 [2019-10-15 01:16:14,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:14,214 INFO L462 AbstractCegarLoop]: Abstraction has 469 states and 641 transitions. [2019-10-15 01:16:14,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:14,214 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 641 transitions. [2019-10-15 01:16:14,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-15 01:16:14,237 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:14,238 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:16:14,238 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:14,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:14,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1179138555, now seen corresponding path program 1 times [2019-10-15 01:16:14,239 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:14,239 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229197445] [2019-10-15 01:16:14,240 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:14,240 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:14,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:14,531 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:14,531 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229197445] [2019-10-15 01:16:14,532 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:14,534 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:14,534 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014350492] [2019-10-15 01:16:14,535 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:14,535 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:14,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:14,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:14,536 INFO L87 Difference]: Start difference. First operand 469 states and 641 transitions. Second operand 3 states. [2019-10-15 01:16:14,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:14,581 INFO L93 Difference]: Finished difference Result 951 states and 1344 transitions. [2019-10-15 01:16:14,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:14,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2019-10-15 01:16:14,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:14,588 INFO L225 Difference]: With dead ends: 951 [2019-10-15 01:16:14,588 INFO L226 Difference]: Without dead ends: 547 [2019-10-15 01:16:14,591 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 01:16:14,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2019-10-15 01:16:14,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 546. [2019-10-15 01:16:14,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2019-10-15 01:16:14,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 773 transitions. [2019-10-15 01:16:14,628 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 773 transitions. Word has length 188 [2019-10-15 01:16:14,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:14,628 INFO L462 AbstractCegarLoop]: Abstraction has 546 states and 773 transitions. [2019-10-15 01:16:14,629 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:14,629 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 773 transitions. [2019-10-15 01:16:14,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-15 01:16:14,633 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:14,634 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:16:14,634 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:14,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:14,635 INFO L82 PathProgramCache]: Analyzing trace with hash -2052303444, now seen corresponding path program 1 times [2019-10-15 01:16:14,635 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:14,636 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092565482] [2019-10-15 01:16:14,636 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:14,636 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:14,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:14,880 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:14,881 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092565482] [2019-10-15 01:16:14,882 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:14,882 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:14,882 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799787098] [2019-10-15 01:16:14,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:14,883 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:14,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:14,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:14,884 INFO L87 Difference]: Start difference. First operand 546 states and 773 transitions. Second operand 3 states. [2019-10-15 01:16:14,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:14,928 INFO L93 Difference]: Finished difference Result 1176 states and 1730 transitions. [2019-10-15 01:16:14,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:14,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-10-15 01:16:14,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:14,934 INFO L225 Difference]: With dead ends: 1176 [2019-10-15 01:16:14,934 INFO L226 Difference]: Without dead ends: 695 [2019-10-15 01:16:14,937 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 01:16:14,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2019-10-15 01:16:14,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 694. [2019-10-15 01:16:14,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2019-10-15 01:16:14,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1025 transitions. [2019-10-15 01:16:14,979 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1025 transitions. Word has length 189 [2019-10-15 01:16:14,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:14,980 INFO L462 AbstractCegarLoop]: Abstraction has 694 states and 1025 transitions. [2019-10-15 01:16:14,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:14,980 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1025 transitions. [2019-10-15 01:16:14,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-15 01:16:14,985 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:14,986 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:16:14,986 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:14,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:14,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1144858235, now seen corresponding path program 1 times [2019-10-15 01:16:14,987 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:14,987 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292355274] [2019-10-15 01:16:14,987 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:14,987 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:14,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:15,156 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:15,156 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292355274] [2019-10-15 01:16:15,157 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:15,157 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:15,158 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745726478] [2019-10-15 01:16:15,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:15,158 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:15,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:15,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:15,160 INFO L87 Difference]: Start difference. First operand 694 states and 1025 transitions. Second operand 3 states. [2019-10-15 01:16:15,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:15,257 INFO L93 Difference]: Finished difference Result 1608 states and 2466 transitions. [2019-10-15 01:16:15,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:15,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-15 01:16:15,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:15,271 INFO L225 Difference]: With dead ends: 1608 [2019-10-15 01:16:15,272 INFO L226 Difference]: Without dead ends: 979 [2019-10-15 01:16:15,275 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 01:16:15,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2019-10-15 01:16:15,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 978. [2019-10-15 01:16:15,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 978 states. [2019-10-15 01:16:15,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1505 transitions. [2019-10-15 01:16:15,339 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1505 transitions. Word has length 190 [2019-10-15 01:16:15,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:15,341 INFO L462 AbstractCegarLoop]: Abstraction has 978 states and 1505 transitions. [2019-10-15 01:16:15,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:15,341 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1505 transitions. [2019-10-15 01:16:15,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-15 01:16:15,352 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:15,353 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:16:15,353 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:15,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:15,354 INFO L82 PathProgramCache]: Analyzing trace with hash -862158447, now seen corresponding path program 1 times [2019-10-15 01:16:15,354 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:15,355 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793021449] [2019-10-15 01:16:15,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:15,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:15,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:15,729 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:15,729 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793021449] [2019-10-15 01:16:15,730 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:15,730 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:15,730 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068556961] [2019-10-15 01:16:15,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:15,731 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:15,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:15,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:15,732 INFO L87 Difference]: Start difference. First operand 978 states and 1505 transitions. Second operand 11 states. [2019-10-15 01:16:20,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:20,240 INFO L93 Difference]: Finished difference Result 2434 states and 3435 transitions. [2019-10-15 01:16:20,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-15 01:16:20,241 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 193 [2019-10-15 01:16:20,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:20,256 INFO L225 Difference]: With dead ends: 2434 [2019-10-15 01:16:20,256 INFO L226 Difference]: Without dead ends: 2059 [2019-10-15 01:16:20,260 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:16:20,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2019-10-15 01:16:20,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 2044. [2019-10-15 01:16:20,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2044 states. [2019-10-15 01:16:20,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2044 states to 2044 states and 2886 transitions. [2019-10-15 01:16:20,367 INFO L78 Accepts]: Start accepts. Automaton has 2044 states and 2886 transitions. Word has length 193 [2019-10-15 01:16:20,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:20,368 INFO L462 AbstractCegarLoop]: Abstraction has 2044 states and 2886 transitions. [2019-10-15 01:16:20,368 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:20,368 INFO L276 IsEmpty]: Start isEmpty. Operand 2044 states and 2886 transitions. [2019-10-15 01:16:20,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-15 01:16:20,375 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:20,376 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:16:20,376 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:20,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:20,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1182728700, now seen corresponding path program 1 times [2019-10-15 01:16:20,377 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:20,377 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797030311] [2019-10-15 01:16:20,377 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:20,377 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:20,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:20,710 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:20,711 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797030311] [2019-10-15 01:16:20,711 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:20,712 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-15 01:16:20,712 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901828070] [2019-10-15 01:16:20,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:16:20,713 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:20,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:16:20,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:16:20,714 INFO L87 Difference]: Start difference. First operand 2044 states and 2886 transitions. Second operand 16 states. [2019-10-15 01:16:21,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:21,178 INFO L93 Difference]: Finished difference Result 3086 states and 4232 transitions. [2019-10-15 01:16:21,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 01:16:21,179 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 194 [2019-10-15 01:16:21,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:21,191 INFO L225 Difference]: With dead ends: 3086 [2019-10-15 01:16:21,192 INFO L226 Difference]: Without dead ends: 1774 [2019-10-15 01:16:21,197 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 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 01:16:21,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2019-10-15 01:16:21,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1695. [2019-10-15 01:16:21,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1695 states. [2019-10-15 01:16:21,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2422 transitions. [2019-10-15 01:16:21,310 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2422 transitions. Word has length 194 [2019-10-15 01:16:21,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:21,311 INFO L462 AbstractCegarLoop]: Abstraction has 1695 states and 2422 transitions. [2019-10-15 01:16:21,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:16:21,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2422 transitions. [2019-10-15 01:16:21,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-15 01:16:21,319 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:21,319 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:16:21,320 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:21,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:21,320 INFO L82 PathProgramCache]: Analyzing trace with hash 2089057104, now seen corresponding path program 1 times [2019-10-15 01:16:21,321 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:21,321 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979892234] [2019-10-15 01:16:21,321 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:21,321 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:21,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:21,553 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:21,554 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979892234] [2019-10-15 01:16:21,555 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:21,555 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:16:21,556 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241698699] [2019-10-15 01:16:21,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:16:21,557 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:21,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:16:21,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:16:21,558 INFO L87 Difference]: Start difference. First operand 1695 states and 2422 transitions. Second operand 6 states. [2019-10-15 01:16:22,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:22,195 INFO L93 Difference]: Finished difference Result 4252 states and 6012 transitions. [2019-10-15 01:16:22,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:16:22,196 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 203 [2019-10-15 01:16:22,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:22,229 INFO L225 Difference]: With dead ends: 4252 [2019-10-15 01:16:22,229 INFO L226 Difference]: Without dead ends: 3381 [2019-10-15 01:16:22,240 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:16:22,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3381 states. [2019-10-15 01:16:22,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3381 to 3310. [2019-10-15 01:16:22,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3310 states. [2019-10-15 01:16:22,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3310 states to 3310 states and 4816 transitions. [2019-10-15 01:16:22,461 INFO L78 Accepts]: Start accepts. Automaton has 3310 states and 4816 transitions. Word has length 203 [2019-10-15 01:16:22,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:22,462 INFO L462 AbstractCegarLoop]: Abstraction has 3310 states and 4816 transitions. [2019-10-15 01:16:22,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:16:22,462 INFO L276 IsEmpty]: Start isEmpty. Operand 3310 states and 4816 transitions. [2019-10-15 01:16:22,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-15 01:16:22,474 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:22,474 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:16:22,475 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:22,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:22,475 INFO L82 PathProgramCache]: Analyzing trace with hash -80625117, now seen corresponding path program 1 times [2019-10-15 01:16:22,475 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:22,475 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368948284] [2019-10-15 01:16:22,476 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,476 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:22,676 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:22,676 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368948284] [2019-10-15 01:16:22,677 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:22,677 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:16:22,678 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321992156] [2019-10-15 01:16:22,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:16:22,680 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:22,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:16:22,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:16:22,681 INFO L87 Difference]: Start difference. First operand 3310 states and 4816 transitions. Second operand 5 states. [2019-10-15 01:16:24,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:24,113 INFO L93 Difference]: Finished difference Result 10095 states and 14251 transitions. [2019-10-15 01:16:24,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:16:24,114 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2019-10-15 01:16:24,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:24,181 INFO L225 Difference]: With dead ends: 10095 [2019-10-15 01:16:24,182 INFO L226 Difference]: Without dead ends: 8364 [2019-10-15 01:16:24,195 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 01:16:24,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8364 states. [2019-10-15 01:16:24,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8364 to 8228. [2019-10-15 01:16:24,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8228 states. [2019-10-15 01:16:24,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8228 states to 8228 states and 11880 transitions. [2019-10-15 01:16:24,642 INFO L78 Accepts]: Start accepts. Automaton has 8228 states and 11880 transitions. Word has length 204 [2019-10-15 01:16:24,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:24,643 INFO L462 AbstractCegarLoop]: Abstraction has 8228 states and 11880 transitions. [2019-10-15 01:16:24,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:16:24,644 INFO L276 IsEmpty]: Start isEmpty. Operand 8228 states and 11880 transitions. [2019-10-15 01:16:24,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-15 01:16:24,671 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:24,672 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:16:24,672 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:24,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:24,672 INFO L82 PathProgramCache]: Analyzing trace with hash -667401236, now seen corresponding path program 1 times [2019-10-15 01:16:24,673 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:24,673 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216552017] [2019-10-15 01:16:24,673 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:24,673 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:24,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:24,917 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:24,917 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216552017] [2019-10-15 01:16:24,917 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:24,918 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:16:24,918 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669322464] [2019-10-15 01:16:24,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:16:24,919 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:24,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:16:24,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:16:24,920 INFO L87 Difference]: Start difference. First operand 8228 states and 11880 transitions. Second operand 9 states. [2019-10-15 01:16:25,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:25,522 INFO L93 Difference]: Finished difference Result 12193 states and 16859 transitions. [2019-10-15 01:16:25,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:16:25,523 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 204 [2019-10-15 01:16:25,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:25,581 INFO L225 Difference]: With dead ends: 12193 [2019-10-15 01:16:25,582 INFO L226 Difference]: Without dead ends: 7324 [2019-10-15 01:16:25,599 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:16:25,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7324 states. [2019-10-15 01:16:25,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7324 to 7143. [2019-10-15 01:16:25,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7143 states. [2019-10-15 01:16:26,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7143 states to 7143 states and 10470 transitions. [2019-10-15 01:16:26,008 INFO L78 Accepts]: Start accepts. Automaton has 7143 states and 10470 transitions. Word has length 204 [2019-10-15 01:16:26,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:26,010 INFO L462 AbstractCegarLoop]: Abstraction has 7143 states and 10470 transitions. [2019-10-15 01:16:26,010 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:16:26,010 INFO L276 IsEmpty]: Start isEmpty. Operand 7143 states and 10470 transitions. [2019-10-15 01:16:26,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-15 01:16:26,038 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:26,039 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:26,039 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:26,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:26,040 INFO L82 PathProgramCache]: Analyzing trace with hash -341043388, now seen corresponding path program 1 times [2019-10-15 01:16:26,040 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:26,040 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849783138] [2019-10-15 01:16:26,040 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:26,041 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:26,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:26,290 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849783138] [2019-10-15 01:16:26,290 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:26,291 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:26,291 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193106209] [2019-10-15 01:16:26,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:26,292 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:26,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:26,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:26,293 INFO L87 Difference]: Start difference. First operand 7143 states and 10470 transitions. Second operand 8 states. [2019-10-15 01:16:31,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:31,030 INFO L93 Difference]: Finished difference Result 21795 states and 34408 transitions. [2019-10-15 01:16:31,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:16:31,031 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 241 [2019-10-15 01:16:31,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:31,131 INFO L225 Difference]: With dead ends: 21795 [2019-10-15 01:16:31,131 INFO L226 Difference]: Without dead ends: 14717 [2019-10-15 01:16:31,166 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:16:31,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14717 states. [2019-10-15 01:16:31,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14717 to 10431. [2019-10-15 01:16:31,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10431 states. [2019-10-15 01:16:31,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10431 states to 10431 states and 17390 transitions. [2019-10-15 01:16:31,850 INFO L78 Accepts]: Start accepts. Automaton has 10431 states and 17390 transitions. Word has length 241 [2019-10-15 01:16:31,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:31,851 INFO L462 AbstractCegarLoop]: Abstraction has 10431 states and 17390 transitions. [2019-10-15 01:16:31,851 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:16:31,851 INFO L276 IsEmpty]: Start isEmpty. Operand 10431 states and 17390 transitions. [2019-10-15 01:16:31,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-15 01:16:31,930 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:31,930 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:31,931 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:31,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:31,931 INFO L82 PathProgramCache]: Analyzing trace with hash -790262356, now seen corresponding path program 1 times [2019-10-15 01:16:31,931 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:31,932 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734260574] [2019-10-15 01:16:31,932 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:31,932 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:31,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:32,271 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:32,272 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734260574] [2019-10-15 01:16:32,272 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:32,272 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:32,272 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775798367] [2019-10-15 01:16:32,273 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:32,274 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:32,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:32,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:32,274 INFO L87 Difference]: Start difference. First operand 10431 states and 17390 transitions. Second operand 8 states. [2019-10-15 01:16:37,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:37,053 INFO L93 Difference]: Finished difference Result 32195 states and 58424 transitions. [2019-10-15 01:16:37,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:16:37,054 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 227 [2019-10-15 01:16:37,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:37,196 INFO L225 Difference]: With dead ends: 32195 [2019-10-15 01:16:37,196 INFO L226 Difference]: Without dead ends: 21829 [2019-10-15 01:16:37,279 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:16:37,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21829 states.