/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:53:35,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:53:35,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:53:35,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:53:35,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:53:35,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:53:35,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:53:35,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:53:35,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:53:35,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:53:35,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:53:35,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:53:35,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:53:35,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:53:35,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:53:35,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:53:35,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:53:35,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:53:35,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:53:35,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:53:35,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:53:35,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:53:35,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:53:35,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:53:35,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:53:35,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:53:35,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:53:35,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:53:35,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:53:35,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:53:35,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:53:35,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:53:35,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:53:35,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:53:35,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:53:35,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:53:35,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:53:35,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:53:35,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:53:35,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:53:35,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:53:35,566 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:53:35,592 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:53:35,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:53:35,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:53:35,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:53:35,595 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:53:35,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:53:35,596 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:53:35,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:53:35,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:53:35,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:53:35,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:53:35,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:53:35,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:53:35,598 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:53:35,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:53:35,599 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:53:35,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:53:35,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:53:35,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:53:35,599 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:53:35,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:53:35,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:53:35,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:53:35,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:53:35,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:53:35,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:53:35,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:53:35,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:53:35,601 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:53:35,881 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:53:35,901 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:53:35,905 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:53:35,906 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:53:35,907 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:53:35,907 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product30.cil.c [2019-11-07 00:53:35,985 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a57f6984/403597dfde634f0c83c9c56d9c347817/FLAG61741b833 [2019-11-07 00:53:36,700 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:53:36,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product30.cil.c [2019-11-07 00:53:36,726 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a57f6984/403597dfde634f0c83c9c56d9c347817/FLAG61741b833 [2019-11-07 00:53:36,856 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a57f6984/403597dfde634f0c83c9c56d9c347817 [2019-11-07 00:53:36,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:53:36,867 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:53:36,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:53:36,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:53:36,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:53:36,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:36" (1/1) ... [2019-11-07 00:53:36,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5d51b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:36, skipping insertion in model container [2019-11-07 00:53:36,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:36" (1/1) ... [2019-11-07 00:53:36,885 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:53:36,971 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:53:37,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:53:37,811 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:53:37,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:53:37,995 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:53:37,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:37 WrapperNode [2019-11-07 00:53:37,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:53:37,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:53:37,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:53:37,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:53:38,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:37" (1/1) ... [2019-11-07 00:53:38,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:37" (1/1) ... [2019-11-07 00:53:38,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:37" (1/1) ... [2019-11-07 00:53:38,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:37" (1/1) ... [2019-11-07 00:53:38,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:37" (1/1) ... [2019-11-07 00:53:38,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:37" (1/1) ... [2019-11-07 00:53:38,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:37" (1/1) ... [2019-11-07 00:53:38,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:53:38,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:53:38,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:53:38,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:53:38,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:53:38,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:53:38,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:53:38,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:53:38,247 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:53:38,247 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:53:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:53:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:53:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:53:38,248 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:53:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:53:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:53:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:53:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:53:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:53:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:53:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:53:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:53:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:53:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:53:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:53:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:53:38,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:53:38,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:53:38,252 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:53:38,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:53:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:53:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:53:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:53:38,253 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:53:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:53:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:53:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:53:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:53:38,254 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:53:38,255 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:53:38,255 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:53:38,255 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:53:38,255 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:53:38,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:53:38,256 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:53:38,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:53:38,256 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:53:38,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:53:38,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:53:38,257 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:53:38,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:53:38,257 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:53:38,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:53:38,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:53:38,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:53:38,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:53:38,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:53:38,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:53:38,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:53:38,259 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:53:38,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:53:38,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:53:38,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:53:38,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 00:53:38,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 00:53:38,260 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:53:38,260 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:53:38,261 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:53:38,261 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:53:38,261 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:53:38,261 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:53:38,261 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 00:53:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 00:53:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 00:53:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:53:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:53:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:53:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:53:38,263 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:53:38,263 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:53:38,263 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:53:38,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:53:38,263 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:53:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 00:53:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:53:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:53:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:53:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-11-07 00:53:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 00:53:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:53:38,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:53:38,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:53:38,265 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:53:38,265 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:53:38,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:53:38,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:53:38,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:53:38,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:53:38,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:53:38,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:53:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:53:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:53:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:53:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:53:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:53:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:53:38,268 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:53:38,268 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:53:38,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:53:38,268 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:53:38,268 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:53:38,269 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:53:38,269 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:53:38,269 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:53:38,269 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:53:38,269 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:53:38,269 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:53:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:53:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:53:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 00:53:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:53:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:53:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:53:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:53:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 00:53:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:53:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:53:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:53:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:53:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:53:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:53:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:53:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:53:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:53:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:53:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:53:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:53:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:53:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:53:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:53:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:53:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:53:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:53:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:53:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:53:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:53:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:53:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:53:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:53:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:53:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:53:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:53:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:53:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:53:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:53:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:53:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:53:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:53:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:53:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:53:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:53:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:53:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:53:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:53:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:53:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:53:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:53:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:53:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:53:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:53:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:53:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:53:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:53:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:53:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:53:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:53:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:53:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:53:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:53:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:53:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:53:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:53:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:53:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:53:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:53:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:53:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:53:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:53:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:53:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:53:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:53:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 00:53:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:53:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 00:53:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:53:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:53:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:53:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:53:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:53:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:53:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:53:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:53:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:53:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:53:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:53:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:53:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:53:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:53:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 00:53:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:53:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:53:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:53:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:53:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 00:53:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 00:53:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 00:53:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:53:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:53:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:53:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-11-07 00:53:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 00:53:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:53:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:53:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:53:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:53:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:53:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:53:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:53:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:53:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:53:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:53:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:53:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:53:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:53:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:53:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:53:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:53:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:53:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:53:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:53:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:53:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:53:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:53:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:53:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:53:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:53:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:53:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:53:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:53:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:53:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:53:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:53:40,745 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:53:40,745 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:53:40,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:40 BoogieIcfgContainer [2019-11-07 00:53:40,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:53:40,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:53:40,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:53:40,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:53:40,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:53:36" (1/3) ... [2019-11-07 00:53:40,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62eb3074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:40, skipping insertion in model container [2019-11-07 00:53:40,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:37" (2/3) ... [2019-11-07 00:53:40,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62eb3074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:40, skipping insertion in model container [2019-11-07 00:53:40,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:40" (3/3) ... [2019-11-07 00:53:40,757 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product30.cil.c [2019-11-07 00:53:40,768 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:53:40,779 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:53:40,792 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:53:40,831 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:53:40,832 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:53:40,833 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:53:40,833 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:53:40,833 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:53:40,833 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:53:40,834 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:53:40,834 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:53:40,873 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states. [2019-11-07 00:53:40,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-11-07 00:53:40,907 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:40,908 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:53:40,910 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:40,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:40,918 INFO L82 PathProgramCache]: Analyzing trace with hash 2032051797, now seen corresponding path program 1 times [2019-11-07 00:53:40,929 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:40,930 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956270232] [2019-11-07 00:53:40,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:41,649 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:41,650 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956270232] [2019-11-07 00:53:41,652 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:41,653 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:53:41,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576402196] [2019-11-07 00:53:41,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:53:41,665 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:41,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:53:41,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:53:41,682 INFO L87 Difference]: Start difference. First operand 552 states. Second operand 2 states. [2019-11-07 00:53:41,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:41,792 INFO L93 Difference]: Finished difference Result 790 states and 1043 transitions. [2019-11-07 00:53:41,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:53:41,794 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 189 [2019-11-07 00:53:41,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:41,836 INFO L225 Difference]: With dead ends: 790 [2019-11-07 00:53:41,837 INFO L226 Difference]: Without dead ends: 501 [2019-11-07 00:53:41,850 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:53:41,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2019-11-07 00:53:41,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2019-11-07 00:53:41,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2019-11-07 00:53:42,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 665 transitions. [2019-11-07 00:53:42,007 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 665 transitions. Word has length 189 [2019-11-07 00:53:42,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:42,011 INFO L462 AbstractCegarLoop]: Abstraction has 501 states and 665 transitions. [2019-11-07 00:53:42,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:53:42,011 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 665 transitions. [2019-11-07 00:53:42,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-11-07 00:53:42,023 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:42,024 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:53:42,024 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:42,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:42,025 INFO L82 PathProgramCache]: Analyzing trace with hash -990311382, now seen corresponding path program 1 times [2019-11-07 00:53:42,025 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:42,025 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947214960] [2019-11-07 00:53:42,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:42,357 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:42,357 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947214960] [2019-11-07 00:53:42,358 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:42,358 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:42,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435862374] [2019-11-07 00:53:42,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:42,361 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:42,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:42,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:42,361 INFO L87 Difference]: Start difference. First operand 501 states and 665 transitions. Second operand 3 states. [2019-11-07 00:53:42,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:42,424 INFO L93 Difference]: Finished difference Result 773 states and 1010 transitions. [2019-11-07 00:53:42,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:42,425 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-11-07 00:53:42,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:42,430 INFO L225 Difference]: With dead ends: 773 [2019-11-07 00:53:42,430 INFO L226 Difference]: Without dead ends: 504 [2019-11-07 00:53:42,433 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:42,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2019-11-07 00:53:42,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 503. [2019-11-07 00:53:42,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2019-11-07 00:53:42,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 667 transitions. [2019-11-07 00:53:42,462 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 667 transitions. Word has length 190 [2019-11-07 00:53:42,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:42,462 INFO L462 AbstractCegarLoop]: Abstraction has 503 states and 667 transitions. [2019-11-07 00:53:42,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:42,463 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 667 transitions. [2019-11-07 00:53:42,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-11-07 00:53:42,467 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:42,467 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:53:42,467 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:42,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:42,468 INFO L82 PathProgramCache]: Analyzing trace with hash -733983558, now seen corresponding path program 1 times [2019-11-07 00:53:42,468 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:42,468 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122030649] [2019-11-07 00:53:42,468 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:42,640 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:42,641 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122030649] [2019-11-07 00:53:42,641 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:42,641 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:42,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914414688] [2019-11-07 00:53:42,642 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:42,644 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:42,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:42,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:42,645 INFO L87 Difference]: Start difference. First operand 503 states and 667 transitions. Second operand 3 states. [2019-11-07 00:53:42,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:42,687 INFO L93 Difference]: Finished difference Result 982 states and 1332 transitions. [2019-11-07 00:53:42,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:42,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2019-11-07 00:53:42,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:42,692 INFO L225 Difference]: With dead ends: 982 [2019-11-07 00:53:42,692 INFO L226 Difference]: Without dead ends: 544 [2019-11-07 00:53:42,694 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:42,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2019-11-07 00:53:42,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 543. [2019-11-07 00:53:42,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2019-11-07 00:53:42,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 736 transitions. [2019-11-07 00:53:42,715 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 736 transitions. Word has length 200 [2019-11-07 00:53:42,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:42,716 INFO L462 AbstractCegarLoop]: Abstraction has 543 states and 736 transitions. [2019-11-07 00:53:42,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:42,716 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 736 transitions. [2019-11-07 00:53:42,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-11-07 00:53:42,720 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:42,721 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:53:42,721 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:42,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:42,722 INFO L82 PathProgramCache]: Analyzing trace with hash 976247459, now seen corresponding path program 1 times [2019-11-07 00:53:42,722 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:42,722 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552598526] [2019-11-07 00:53:42,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:42,936 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:42,937 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552598526] [2019-11-07 00:53:42,938 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:42,938 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:42,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351882030] [2019-11-07 00:53:42,939 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:42,940 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:42,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:42,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:42,943 INFO L87 Difference]: Start difference. First operand 543 states and 736 transitions. Second operand 3 states. [2019-11-07 00:53:42,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:42,993 INFO L93 Difference]: Finished difference Result 1099 states and 1534 transitions. [2019-11-07 00:53:42,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:42,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2019-11-07 00:53:42,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:43,000 INFO L225 Difference]: With dead ends: 1099 [2019-11-07 00:53:43,000 INFO L226 Difference]: Without dead ends: 621 [2019-11-07 00:53:43,002 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:43,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2019-11-07 00:53:43,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 620. [2019-11-07 00:53:43,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-11-07 00:53:43,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 868 transitions. [2019-11-07 00:53:43,040 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 868 transitions. Word has length 201 [2019-11-07 00:53:43,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:43,041 INFO L462 AbstractCegarLoop]: Abstraction has 620 states and 868 transitions. [2019-11-07 00:53:43,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:43,041 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 868 transitions. [2019-11-07 00:53:43,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-11-07 00:53:43,048 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:43,049 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:53:43,049 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:43,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:43,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1623926726, now seen corresponding path program 1 times [2019-11-07 00:53:43,050 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:43,051 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289167731] [2019-11-07 00:53:43,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:43,264 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:43,265 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289167731] [2019-11-07 00:53:43,265 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:43,266 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:43,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497227901] [2019-11-07 00:53:43,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:43,267 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:43,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:43,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:43,268 INFO L87 Difference]: Start difference. First operand 620 states and 868 transitions. Second operand 3 states. [2019-11-07 00:53:43,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:43,310 INFO L93 Difference]: Finished difference Result 1324 states and 1920 transitions. [2019-11-07 00:53:43,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:43,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2019-11-07 00:53:43,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:43,317 INFO L225 Difference]: With dead ends: 1324 [2019-11-07 00:53:43,317 INFO L226 Difference]: Without dead ends: 769 [2019-11-07 00:53:43,320 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:43,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2019-11-07 00:53:43,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 768. [2019-11-07 00:53:43,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2019-11-07 00:53:43,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1120 transitions. [2019-11-07 00:53:43,362 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1120 transitions. Word has length 202 [2019-11-07 00:53:43,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:43,362 INFO L462 AbstractCegarLoop]: Abstraction has 768 states and 1120 transitions. [2019-11-07 00:53:43,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:43,363 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1120 transitions. [2019-11-07 00:53:43,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-11-07 00:53:43,368 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:43,368 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:53:43,369 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:43,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:43,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1460269859, now seen corresponding path program 1 times [2019-11-07 00:53:43,370 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:43,370 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116039701] [2019-11-07 00:53:43,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:43,605 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:43,606 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116039701] [2019-11-07 00:53:43,607 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:43,607 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:43,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109495785] [2019-11-07 00:53:43,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:43,608 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:43,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:43,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:43,609 INFO L87 Difference]: Start difference. First operand 768 states and 1120 transitions. Second operand 3 states. [2019-11-07 00:53:43,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:43,658 INFO L93 Difference]: Finished difference Result 1756 states and 2656 transitions. [2019-11-07 00:53:43,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:43,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2019-11-07 00:53:43,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:43,666 INFO L225 Difference]: With dead ends: 1756 [2019-11-07 00:53:43,666 INFO L226 Difference]: Without dead ends: 1053 [2019-11-07 00:53:43,669 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:43,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2019-11-07 00:53:43,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 1052. [2019-11-07 00:53:43,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2019-11-07 00:53:43,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1600 transitions. [2019-11-07 00:53:43,727 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1600 transitions. Word has length 203 [2019-11-07 00:53:43,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:43,728 INFO L462 AbstractCegarLoop]: Abstraction has 1052 states and 1600 transitions. [2019-11-07 00:53:43,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:43,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1600 transitions. [2019-11-07 00:53:43,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-11-07 00:53:43,735 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:43,735 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:53:43,735 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:43,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:43,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1034024059, now seen corresponding path program 1 times [2019-11-07 00:53:43,736 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:43,736 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273169682] [2019-11-07 00:53:43,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:44,080 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:44,081 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273169682] [2019-11-07 00:53:44,081 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:44,081 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 00:53:44,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282477524] [2019-11-07 00:53:44,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 00:53:44,082 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:44,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 00:53:44,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:53:44,084 INFO L87 Difference]: Start difference. First operand 1052 states and 1600 transitions. Second operand 11 states. [2019-11-07 00:53:49,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:49,487 INFO L93 Difference]: Finished difference Result 3156 states and 4414 transitions. [2019-11-07 00:53:49,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-11-07 00:53:49,487 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2019-11-07 00:53:49,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:49,504 INFO L225 Difference]: With dead ends: 3156 [2019-11-07 00:53:49,504 INFO L226 Difference]: Without dead ends: 2577 [2019-11-07 00:53:49,508 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2019-11-07 00:53:49,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2577 states. [2019-11-07 00:53:49,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2577 to 2562. [2019-11-07 00:53:49,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2562 states. [2019-11-07 00:53:49,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2562 states to 2562 states and 3558 transitions. [2019-11-07 00:53:49,659 INFO L78 Accepts]: Start accepts. Automaton has 2562 states and 3558 transitions. Word has length 206 [2019-11-07 00:53:49,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:49,660 INFO L462 AbstractCegarLoop]: Abstraction has 2562 states and 3558 transitions. [2019-11-07 00:53:49,660 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 00:53:49,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2562 states and 3558 transitions. [2019-11-07 00:53:49,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-11-07 00:53:49,667 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:49,668 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:53:49,668 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:49,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:49,669 INFO L82 PathProgramCache]: Analyzing trace with hash -587031347, now seen corresponding path program 1 times [2019-11-07 00:53:49,669 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:49,669 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729145297] [2019-11-07 00:53:49,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:50,091 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:50,092 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729145297] [2019-11-07 00:53:50,092 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:50,092 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-11-07 00:53:50,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093293568] [2019-11-07 00:53:50,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-07 00:53:50,094 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:50,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-07 00:53:50,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-11-07 00:53:50,095 INFO L87 Difference]: Start difference. First operand 2562 states and 3558 transitions. Second operand 18 states. [2019-11-07 00:53:50,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:50,563 INFO L93 Difference]: Finished difference Result 4091 states and 5559 transitions. [2019-11-07 00:53:50,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-07 00:53:50,563 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 207 [2019-11-07 00:53:50,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:50,590 INFO L225 Difference]: With dead ends: 4091 [2019-11-07 00:53:50,590 INFO L226 Difference]: Without dead ends: 2182 [2019-11-07 00:53:50,596 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-11-07 00:53:50,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2182 states. [2019-11-07 00:53:50,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2182 to 2142. [2019-11-07 00:53:50,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2142 states. [2019-11-07 00:53:50,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2142 states to 2142 states and 3001 transitions. [2019-11-07 00:53:50,686 INFO L78 Accepts]: Start accepts. Automaton has 2142 states and 3001 transitions. Word has length 207 [2019-11-07 00:53:50,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:50,687 INFO L462 AbstractCegarLoop]: Abstraction has 2142 states and 3001 transitions. [2019-11-07 00:53:50,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-07 00:53:50,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2142 states and 3001 transitions. [2019-11-07 00:53:50,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-11-07 00:53:50,694 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:50,694 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:53:50,695 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:50,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:50,695 INFO L82 PathProgramCache]: Analyzing trace with hash -978410275, now seen corresponding path program 1 times [2019-11-07 00:53:50,695 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:50,696 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280978956] [2019-11-07 00:53:50,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:50,864 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:50,864 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280978956] [2019-11-07 00:53:50,864 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:50,865 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:53:50,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733146870] [2019-11-07 00:53:50,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:53:50,866 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:50,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:53:50,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:53:50,866 INFO L87 Difference]: Start difference. First operand 2142 states and 3001 transitions. Second operand 6 states. [2019-11-07 00:53:51,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:51,583 INFO L93 Difference]: Finished difference Result 5566 states and 7724 transitions. [2019-11-07 00:53:51,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 00:53:51,583 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2019-11-07 00:53:51,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:51,608 INFO L225 Difference]: With dead ends: 5566 [2019-11-07 00:53:51,608 INFO L226 Difference]: Without dead ends: 4275 [2019-11-07 00:53:51,613 INFO L630 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 [2019-11-07 00:53:51,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4275 states. [2019-11-07 00:53:51,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4275 to 4204. [2019-11-07 00:53:51,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4204 states. [2019-11-07 00:53:51,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4204 states to 4204 states and 5979 transitions. [2019-11-07 00:53:51,807 INFO L78 Accepts]: Start accepts. Automaton has 4204 states and 5979 transitions. Word has length 216 [2019-11-07 00:53:51,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:51,807 INFO L462 AbstractCegarLoop]: Abstraction has 4204 states and 5979 transitions. [2019-11-07 00:53:51,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:53:51,807 INFO L276 IsEmpty]: Start isEmpty. Operand 4204 states and 5979 transitions. [2019-11-07 00:53:51,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-11-07 00:53:51,821 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:51,822 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:53:51,822 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:51,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:51,823 INFO L82 PathProgramCache]: Analyzing trace with hash 422554938, now seen corresponding path program 1 times [2019-11-07 00:53:51,823 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:51,823 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978611352] [2019-11-07 00:53:51,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:52,049 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:52,050 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978611352] [2019-11-07 00:53:52,051 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:52,051 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 00:53:52,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687899266] [2019-11-07 00:53:52,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 00:53:52,054 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:52,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 00:53:52,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:53:52,054 INFO L87 Difference]: Start difference. First operand 4204 states and 5979 transitions. Second operand 11 states. [2019-11-07 00:53:52,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:52,450 INFO L93 Difference]: Finished difference Result 6809 states and 9318 transitions. [2019-11-07 00:53:52,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-07 00:53:52,451 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 217 [2019-11-07 00:53:52,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:52,479 INFO L225 Difference]: With dead ends: 6809 [2019-11-07 00:53:52,479 INFO L226 Difference]: Without dead ends: 4222 [2019-11-07 00:53:52,492 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-11-07 00:53:52,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4222 states. [2019-11-07 00:53:52,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4222 to 4192. [2019-11-07 00:53:52,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4192 states. [2019-11-07 00:53:52,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4192 states to 4192 states and 5953 transitions. [2019-11-07 00:53:52,739 INFO L78 Accepts]: Start accepts. Automaton has 4192 states and 5953 transitions. Word has length 217 [2019-11-07 00:53:52,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:52,741 INFO L462 AbstractCegarLoop]: Abstraction has 4192 states and 5953 transitions. [2019-11-07 00:53:52,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 00:53:52,741 INFO L276 IsEmpty]: Start isEmpty. Operand 4192 states and 5953 transitions. [2019-11-07 00:53:52,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-11-07 00:53:52,754 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:52,754 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:53:52,754 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:52,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:52,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1009331057, now seen corresponding path program 1 times [2019-11-07 00:53:52,755 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:52,755 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126525831] [2019-11-07 00:53:52,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:52,919 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:52,919 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126525831] [2019-11-07 00:53:52,920 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:52,920 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:53:52,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627770841] [2019-11-07 00:53:52,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:53:52,921 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:52,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:53:52,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:53:52,921 INFO L87 Difference]: Start difference. First operand 4192 states and 5953 transitions. Second operand 5 states. [2019-11-07 00:53:54,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:54,135 INFO L93 Difference]: Finished difference Result 12987 states and 18128 transitions. [2019-11-07 00:53:54,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:53:54,136 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2019-11-07 00:53:54,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:54,203 INFO L225 Difference]: With dead ends: 12987 [2019-11-07 00:53:54,203 INFO L226 Difference]: Without dead ends: 9560 [2019-11-07 00:53:54,219 INFO L630 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 [2019-11-07 00:53:54,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9560 states. [2019-11-07 00:53:54,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9560 to 9280. [2019-11-07 00:53:54,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9280 states. [2019-11-07 00:53:54,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9280 states to 9280 states and 13295 transitions. [2019-11-07 00:53:54,703 INFO L78 Accepts]: Start accepts. Automaton has 9280 states and 13295 transitions. Word has length 217 [2019-11-07 00:53:54,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:54,704 INFO L462 AbstractCegarLoop]: Abstraction has 9280 states and 13295 transitions. [2019-11-07 00:53:54,704 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:53:54,704 INFO L276 IsEmpty]: Start isEmpty. Operand 9280 states and 13295 transitions. [2019-11-07 00:53:54,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-11-07 00:53:54,727 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:54,728 INFO L410 BasicCegarLoop]: trace histogram [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, 1] [2019-11-07 00:53:54,728 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:54,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:54,728 INFO L82 PathProgramCache]: Analyzing trace with hash 856129287, now seen corresponding path program 1 times [2019-11-07 00:53:54,729 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:54,729 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339933646] [2019-11-07 00:53:54,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:54,943 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:54,943 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339933646] [2019-11-07 00:53:54,943 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:54,944 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 00:53:54,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122374706] [2019-11-07 00:53:54,944 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 00:53:54,945 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:54,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 00:53:54,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:53:54,945 INFO L87 Difference]: Start difference. First operand 9280 states and 13295 transitions. Second operand 8 states. [2019-11-07 00:53:59,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:59,346 INFO L93 Difference]: Finished difference Result 28206 states and 42883 transitions. [2019-11-07 00:53:59,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-07 00:53:59,347 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 239 [2019-11-07 00:53:59,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:59,438 INFO L225 Difference]: With dead ends: 28206 [2019-11-07 00:53:59,438 INFO L226 Difference]: Without dead ends: 18991 [2019-11-07 00:53:59,470 INFO L630 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 [2019-11-07 00:53:59,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18991 states. [2019-11-07 00:54:00,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18991 to 12568. [2019-11-07 00:54:00,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12568 states. [2019-11-07 00:54:00,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12568 states to 12568 states and 20215 transitions. [2019-11-07 00:54:00,249 INFO L78 Accepts]: Start accepts. Automaton has 12568 states and 20215 transitions. Word has length 239 [2019-11-07 00:54:00,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:00,250 INFO L462 AbstractCegarLoop]: Abstraction has 12568 states and 20215 transitions. [2019-11-07 00:54:00,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 00:54:00,250 INFO L276 IsEmpty]: Start isEmpty. Operand 12568 states and 20215 transitions. [2019-11-07 00:54:00,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-11-07 00:54:00,307 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:00,307 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1] [2019-11-07 00:54:00,307 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:00,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:00,308 INFO L82 PathProgramCache]: Analyzing trace with hash 2145881105, now seen corresponding path program 1 times [2019-11-07 00:54:00,308 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:00,308 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796690356] [2019-11-07 00:54:00,308 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:01,198 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:01,199 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796690356] [2019-11-07 00:54:01,199 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:01,199 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 00:54:01,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375535672] [2019-11-07 00:54:01,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 00:54:01,200 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:01,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 00:54:01,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:54:01,201 INFO L87 Difference]: Start difference. First operand 12568 states and 20215 transitions. Second operand 8 states. [2019-11-07 00:54:05,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:05,585 INFO L93 Difference]: Finished difference Result 38606 states and 66899 transitions. [2019-11-07 00:54:05,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-07 00:54:05,586 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2019-11-07 00:54:05,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:05,837 INFO L225 Difference]: With dead ends: 38606 [2019-11-07 00:54:05,837 INFO L226 Difference]: Without dead ends: 26103 [2019-11-07 00:54:05,890 INFO L630 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 [2019-11-07 00:54:05,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26103 states. [2019-11-07 00:54:06,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26103 to 19264. [2019-11-07 00:54:06,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19264 states. [2019-11-07 00:54:07,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19264 states to 19264 states and 35399 transitions. [2019-11-07 00:54:07,046 INFO L78 Accepts]: Start accepts. Automaton has 19264 states and 35399 transitions. Word has length 240 [2019-11-07 00:54:07,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:07,047 INFO L462 AbstractCegarLoop]: Abstraction has 19264 states and 35399 transitions. [2019-11-07 00:54:07,047 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 00:54:07,047 INFO L276 IsEmpty]: Start isEmpty. Operand 19264 states and 35399 transitions. [2019-11-07 00:54:07,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-11-07 00:54:07,180 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:07,181 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2019-11-07 00:54:07,181 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:07,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:07,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1902344509, now seen corresponding path program 1 times [2019-11-07 00:54:07,182 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:07,182 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171072957] [2019-11-07 00:54:07,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:07,495 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:07,496 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171072957] [2019-11-07 00:54:07,496 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:07,496 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 00:54:07,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676647430] [2019-11-07 00:54:07,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 00:54:07,497 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:07,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 00:54:07,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:54:07,498 INFO L87 Difference]: Start difference. First operand 19264 states and 35399 transitions. Second operand 8 states.