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 -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 13:07:33,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 13:07:33,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 13:07:33,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 13:07:33,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 13:07:33,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 13:07:33,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 13:07:33,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 13:07:33,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 13:07:33,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 13:07:33,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 13:07:33,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 13:07:33,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 13:07:33,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 13:07:33,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 13:07:33,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 13:07:33,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 13:07:33,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 13:07:33,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 13:07:33,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 13:07:33,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 13:07:33,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 13:07:33,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 13:07:33,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 13:07:33,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 13:07:33,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 13:07:33,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 13:07:33,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 13:07:33,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 13:07:33,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 13:07:33,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 13:07:33,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 13:07:33,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 13:07:33,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 13:07:33,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 13:07:33,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 13:07:33,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 13:07:33,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 13:07:33,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 13:07:33,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 13:07:33,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 13:07:33,553 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-02 13:07:33,579 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 13:07:33,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 13:07:33,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 13:07:33,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 13:07:33,582 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 13:07:33,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 13:07:33,583 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 13:07:33,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 13:07:33,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 13:07:33,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 13:07:33,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 13:07:33,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 13:07:33,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 13:07:33,586 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 13:07:33,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 13:07:33,586 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 13:07:33,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 13:07:33,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 13:07:33,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 13:07:33,587 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 13:07:33,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 13:07:33,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 13:07:33,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 13:07:33,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 13:07:33,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 13:07:33,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 13:07:33,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 13:07:33,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 13:07:33,589 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 13:07:33,646 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 13:07:33,659 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 13:07:33,662 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 13:07:33,664 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 13:07:33,664 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 13:07:33,665 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product25.cil.c [2019-10-02 13:07:33,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb14e2c87/1894755049bf4d4fa96a407fdf2c8d9b/FLAGc01f4cd12 [2019-10-02 13:07:34,397 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 13:07:34,400 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product25.cil.c [2019-10-02 13:07:34,431 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb14e2c87/1894755049bf4d4fa96a407fdf2c8d9b/FLAGc01f4cd12 [2019-10-02 13:07:34,535 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb14e2c87/1894755049bf4d4fa96a407fdf2c8d9b [2019-10-02 13:07:34,544 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 13:07:34,546 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 13:07:34,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 13:07:34,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 13:07:34,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 13:07:34,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:07:34" (1/1) ... [2019-10-02 13:07:34,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f7b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:34, skipping insertion in model container [2019-10-02 13:07:34,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:07:34" (1/1) ... [2019-10-02 13:07:34,571 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 13:07:34,671 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 13:07:35,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:07:35,571 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 13:07:35,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:07:35,842 INFO L192 MainTranslator]: Completed translation [2019-10-02 13:07:35,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:35 WrapperNode [2019-10-02 13:07:35,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 13:07:35,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 13:07:35,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 13:07:35,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 13:07:35,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:35" (1/1) ... [2019-10-02 13:07:35,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:35" (1/1) ... [2019-10-02 13:07:35,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:35" (1/1) ... [2019-10-02 13:07:35,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:35" (1/1) ... [2019-10-02 13:07:36,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:35" (1/1) ... [2019-10-02 13:07:36,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:35" (1/1) ... [2019-10-02 13:07:36,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:35" (1/1) ... [2019-10-02 13:07:36,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 13:07:36,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 13:07:36,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 13:07:36,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 13:07:36,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 13:07:36,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 13:07:36,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 13:07:36,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-02 13:07:36,189 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-02 13:07:36,190 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-02 13:07:36,190 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-02 13:07:36,190 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-02 13:07:36,190 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-02 13:07:36,191 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-02 13:07:36,191 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-02 13:07:36,191 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-02 13:07:36,192 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-02 13:07:36,192 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-02 13:07:36,192 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-02 13:07:36,192 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-02 13:07:36,192 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-02 13:07:36,193 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-02 13:07:36,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-02 13:07:36,193 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-02 13:07:36,194 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-02 13:07:36,194 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-02 13:07:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-02 13:07:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-02 13:07:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-02 13:07:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-02 13:07:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-02 13:07:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-02 13:07:36,196 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-02 13:07:36,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-02 13:07:36,196 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-02 13:07:36,196 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-02 13:07:36,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-02 13:07:36,197 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-02 13:07:36,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-02 13:07:36,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-02 13:07:36,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-02 13:07:36,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-02 13:07:36,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-02 13:07:36,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-02 13:07:36,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-02 13:07:36,199 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-02 13:07:36,199 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-02 13:07:36,199 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-02 13:07:36,199 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-02 13:07:36,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-02 13:07:36,200 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-02 13:07:36,200 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-02 13:07:36,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-02 13:07:36,201 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-02 13:07:36,201 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-02 13:07:36,201 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-02 13:07:36,202 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-02 13:07:36,202 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-02 13:07:36,202 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-02 13:07:36,203 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-02 13:07:36,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-02 13:07:36,203 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-02 13:07:36,203 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-02 13:07:36,204 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-02 13:07:36,204 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-02 13:07:36,204 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-02 13:07:36,204 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-02 13:07:36,205 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-02 13:07:36,205 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-02 13:07:36,205 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-02 13:07:36,206 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-02 13:07:36,206 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-02 13:07:36,206 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-02 13:07:36,206 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-02 13:07:36,207 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-02 13:07:36,207 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-02 13:07:36,207 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-02 13:07:36,208 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-02 13:07:36,208 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-02 13:07:36,208 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-02 13:07:36,208 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-02 13:07:36,208 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-02 13:07:36,209 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-02 13:07:36,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-02 13:07:36,209 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-02 13:07:36,209 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-02 13:07:36,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-02 13:07:36,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-02 13:07:36,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-02 13:07:36,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-02 13:07:36,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-02 13:07:36,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-02 13:07:36,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-02 13:07:36,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-02 13:07:36,211 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-02 13:07:36,211 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-02 13:07:36,211 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-02 13:07:36,211 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-02 13:07:36,212 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-02 13:07:36,212 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-02 13:07:36,212 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-02 13:07:36,212 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-02 13:07:36,212 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-02 13:07:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 13:07:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-02 13:07:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-02 13:07:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-02 13:07:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-02 13:07:36,213 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-02 13:07:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-02 13:07:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-02 13:07:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-02 13:07:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-02 13:07:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-02 13:07:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-02 13:07:36,214 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-02 13:07:36,215 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-02 13:07:36,215 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-02 13:07:36,215 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-02 13:07:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 13:07:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 13:07:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-02 13:07:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-02 13:07:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-02 13:07:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-02 13:07:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-02 13:07:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-02 13:07:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-02 13:07:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-02 13:07:36,217 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-02 13:07:36,217 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-02 13:07:36,217 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-02 13:07:36,217 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-02 13:07:36,217 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-02 13:07:36,217 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-02 13:07:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-02 13:07:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-02 13:07:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-02 13:07:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-02 13:07:36,218 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-02 13:07:36,219 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-02 13:07:36,219 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-02 13:07:36,219 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-02 13:07:36,219 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-02 13:07:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-02 13:07:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-02 13:07:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-02 13:07:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-02 13:07:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-02 13:07:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-02 13:07:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-02 13:07:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-02 13:07:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-02 13:07:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-02 13:07:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-02 13:07:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-02 13:07:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-02 13:07:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-02 13:07:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-02 13:07:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 13:07:36,222 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-02 13:07:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-02 13:07:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-02 13:07:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-02 13:07:36,223 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-02 13:07:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-02 13:07:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-02 13:07:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-02 13:07:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-02 13:07:36,224 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-02 13:07:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-02 13:07:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-02 13:07:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-02 13:07:36,225 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-02 13:07:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-02 13:07:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-02 13:07:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-02 13:07:36,226 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-02 13:07:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-02 13:07:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-02 13:07:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-02 13:07:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-02 13:07:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-02 13:07:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-02 13:07:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-02 13:07:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-02 13:07:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-02 13:07:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-02 13:07:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-02 13:07:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-02 13:07:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-02 13:07:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-02 13:07:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-02 13:07:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-02 13:07:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-02 13:07:36,230 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-02 13:07:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-02 13:07:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-02 13:07:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-02 13:07:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-02 13:07:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-02 13:07:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-02 13:07:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-02 13:07:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-02 13:07:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-02 13:07:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-02 13:07:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-02 13:07:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-02 13:07:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-02 13:07:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-02 13:07:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-02 13:07:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-02 13:07:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-02 13:07:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-02 13:07:36,234 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-02 13:07:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 13:07:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 13:07:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-02 13:07:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 13:07:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 13:07:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 13:07:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 13:07:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-02 13:07:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 13:07:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-02 13:07:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-02 13:07:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 13:07:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-02 13:07:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-02 13:07:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-02 13:07:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-02 13:07:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-02 13:07:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-02 13:07:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-02 13:07:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-02 13:07:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-02 13:07:36,239 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-02 13:07:36,239 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-02 13:07:36,239 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 13:07:36,239 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-02 13:07:36,240 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-02 13:07:36,240 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-02 13:07:36,240 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-02 13:07:36,240 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-02 13:07:36,240 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-02 13:07:36,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 13:07:36,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 13:07:36,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 13:07:38,888 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 13:07:38,888 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-02 13:07:38,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:07:38 BoogieIcfgContainer [2019-10-02 13:07:38,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 13:07:38,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 13:07:38,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 13:07:38,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 13:07:38,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 01:07:34" (1/3) ... [2019-10-02 13:07:38,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e56475e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:07:38, skipping insertion in model container [2019-10-02 13:07:38,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:35" (2/3) ... [2019-10-02 13:07:38,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e56475e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:07:38, skipping insertion in model container [2019-10-02 13:07:38,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:07:38" (3/3) ... [2019-10-02 13:07:38,901 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product25.cil.c [2019-10-02 13:07:38,912 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 13:07:38,927 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 13:07:38,946 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 13:07:38,995 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 13:07:38,996 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 13:07:38,996 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 13:07:38,996 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 13:07:38,996 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 13:07:38,996 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 13:07:38,997 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 13:07:38,997 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 13:07:38,997 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 13:07:39,036 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states. [2019-10-02 13:07:39,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-02 13:07:39,063 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:07:39,064 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:07:39,067 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:07:39,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:07:39,073 INFO L82 PathProgramCache]: Analyzing trace with hash -458917487, now seen corresponding path program 1 times [2019-10-02 13:07:39,075 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:07:39,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:07:39,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:39,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:39,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:39,894 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-02 13:07:39,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:07:39,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 13:07:39,902 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 13:07:39,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 13:07:39,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 13:07:39,920 INFO L87 Difference]: Start difference. First operand 589 states. Second operand 2 states. [2019-10-02 13:07:40,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:07:40,000 INFO L93 Difference]: Finished difference Result 864 states and 1168 transitions. [2019-10-02 13:07:40,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 13:07:40,002 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 188 [2019-10-02 13:07:40,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:07:40,029 INFO L225 Difference]: With dead ends: 864 [2019-10-02 13:07:40,032 INFO L226 Difference]: Without dead ends: 560 [2019-10-02 13:07:40,041 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 13:07:40,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2019-10-02 13:07:40,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2019-10-02 13:07:40,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2019-10-02 13:07:40,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 761 transitions. [2019-10-02 13:07:40,168 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 761 transitions. Word has length 188 [2019-10-02 13:07:40,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:07:40,172 INFO L475 AbstractCegarLoop]: Abstraction has 560 states and 761 transitions. [2019-10-02 13:07:40,172 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 13:07:40,173 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 761 transitions. [2019-10-02 13:07:40,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-02 13:07:40,188 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:07:40,189 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:07:40,189 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:07:40,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:07:40,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1174707760, now seen corresponding path program 1 times [2019-10-02 13:07:40,190 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:07:40,190 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:07:40,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:40,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:40,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:40,544 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-02 13:07:40,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:07:40,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:07:40,548 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:07:40,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:07:40,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:07:40,549 INFO L87 Difference]: Start difference. First operand 560 states and 761 transitions. Second operand 3 states. [2019-10-02 13:07:40,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:07:40,639 INFO L93 Difference]: Finished difference Result 847 states and 1130 transitions. [2019-10-02 13:07:40,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:07:40,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-10-02 13:07:40,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:07:40,651 INFO L225 Difference]: With dead ends: 847 [2019-10-02 13:07:40,651 INFO L226 Difference]: Without dead ends: 563 [2019-10-02 13:07:40,661 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:07:40,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2019-10-02 13:07:40,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 562. [2019-10-02 13:07:40,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-10-02 13:07:40,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 763 transitions. [2019-10-02 13:07:40,709 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 763 transitions. Word has length 189 [2019-10-02 13:07:40,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:07:40,710 INFO L475 AbstractCegarLoop]: Abstraction has 562 states and 763 transitions. [2019-10-02 13:07:40,710 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:07:40,711 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 763 transitions. [2019-10-02 13:07:40,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-02 13:07:40,717 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:07:40,718 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:07:40,718 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:07:40,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:07:40,719 INFO L82 PathProgramCache]: Analyzing trace with hash -980165084, now seen corresponding path program 1 times [2019-10-02 13:07:40,719 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:07:40,719 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:07:40,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:40,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:40,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:40,976 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-02 13:07:40,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:07:40,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:07:40,979 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:07:40,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:07:40,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:07:40,982 INFO L87 Difference]: Start difference. First operand 562 states and 763 transitions. Second operand 3 states. [2019-10-02 13:07:41,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:07:41,026 INFO L93 Difference]: Finished difference Result 1102 states and 1527 transitions. [2019-10-02 13:07:41,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:07:41,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2019-10-02 13:07:41,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:07:41,031 INFO L225 Difference]: With dead ends: 1102 [2019-10-02 13:07:41,031 INFO L226 Difference]: Without dead ends: 605 [2019-10-02 13:07:41,033 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:07:41,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2019-10-02 13:07:41,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 604. [2019-10-02 13:07:41,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2019-10-02 13:07:41,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 835 transitions. [2019-10-02 13:07:41,058 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 835 transitions. Word has length 195 [2019-10-02 13:07:41,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:07:41,059 INFO L475 AbstractCegarLoop]: Abstraction has 604 states and 835 transitions. [2019-10-02 13:07:41,059 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:07:41,059 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 835 transitions. [2019-10-02 13:07:41,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-02 13:07:41,063 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:07:41,064 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:07:41,064 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:07:41,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:07:41,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1952461671, now seen corresponding path program 1 times [2019-10-02 13:07:41,065 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:07:41,065 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:07:41,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:41,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:41,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:41,331 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-02 13:07:41,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:07:41,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:07:41,333 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:07:41,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:07:41,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:07:41,334 INFO L87 Difference]: Start difference. First operand 604 states and 835 transitions. Second operand 8 states. [2019-10-02 13:07:41,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:07:41,448 INFO L93 Difference]: Finished difference Result 875 states and 1192 transitions. [2019-10-02 13:07:41,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 13:07:41,450 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 196 [2019-10-02 13:07:41,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:07:41,467 INFO L225 Difference]: With dead ends: 875 [2019-10-02 13:07:41,467 INFO L226 Difference]: Without dead ends: 604 [2019-10-02 13:07:41,469 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:07:41,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2019-10-02 13:07:41,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2019-10-02 13:07:41,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 604 states. [2019-10-02 13:07:41,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 834 transitions. [2019-10-02 13:07:41,599 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 834 transitions. Word has length 196 [2019-10-02 13:07:41,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:07:41,600 INFO L475 AbstractCegarLoop]: Abstraction has 604 states and 834 transitions. [2019-10-02 13:07:41,600 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:07:41,600 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 834 transitions. [2019-10-02 13:07:41,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-02 13:07:41,605 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:07:41,605 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:07:41,606 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:07:41,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:07:41,606 INFO L82 PathProgramCache]: Analyzing trace with hash 988756676, now seen corresponding path program 1 times [2019-10-02 13:07:41,607 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:07:41,607 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:07:41,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:41,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:41,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:41,984 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-02 13:07:41,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:07:41,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-02 13:07:41,985 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 13:07:41,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 13:07:41,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 13:07:41,987 INFO L87 Difference]: Start difference. First operand 604 states and 834 transitions. Second operand 7 states. [2019-10-02 13:07:45,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:07:45,044 INFO L93 Difference]: Finished difference Result 1175 states and 1588 transitions. [2019-10-02 13:07:45,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-02 13:07:45,045 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2019-10-02 13:07:45,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:07:45,052 INFO L225 Difference]: With dead ends: 1175 [2019-10-02 13:07:45,053 INFO L226 Difference]: Without dead ends: 900 [2019-10-02 13:07:45,054 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-02 13:07:45,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2019-10-02 13:07:45,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 891. [2019-10-02 13:07:45,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 891 states. [2019-10-02 13:07:45,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1211 transitions. [2019-10-02 13:07:45,097 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1211 transitions. Word has length 203 [2019-10-02 13:07:45,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:07:45,098 INFO L475 AbstractCegarLoop]: Abstraction has 891 states and 1211 transitions. [2019-10-02 13:07:45,099 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 13:07:45,099 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1211 transitions. [2019-10-02 13:07:45,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-02 13:07:45,103 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:07:45,104 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:07:45,104 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:07:45,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:07:45,104 INFO L82 PathProgramCache]: Analyzing trace with hash -866609900, now seen corresponding path program 1 times [2019-10-02 13:07:45,104 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:07:45,105 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:07:45,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:45,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:45,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:45,654 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-02 13:07:45,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:07:45,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-02 13:07:45,655 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-02 13:07:45,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-02 13:07:45,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2019-10-02 13:07:45,658 INFO L87 Difference]: Start difference. First operand 891 states and 1211 transitions. Second operand 26 states. [2019-10-02 13:07:46,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:07:46,525 INFO L93 Difference]: Finished difference Result 1582 states and 2143 transitions. [2019-10-02 13:07:46,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-02 13:07:46,525 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 204 [2019-10-02 13:07:46,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:07:46,533 INFO L225 Difference]: With dead ends: 1582 [2019-10-02 13:07:46,534 INFO L226 Difference]: Without dead ends: 1016 [2019-10-02 13:07:46,537 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=1239, Unknown=0, NotChecked=0, Total=1332 [2019-10-02 13:07:46,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2019-10-02 13:07:46,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1011. [2019-10-02 13:07:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1011 states. [2019-10-02 13:07:46,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1368 transitions. [2019-10-02 13:07:46,611 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1368 transitions. Word has length 204 [2019-10-02 13:07:46,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:07:46,612 INFO L475 AbstractCegarLoop]: Abstraction has 1011 states and 1368 transitions. [2019-10-02 13:07:46,612 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-02 13:07:46,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1368 transitions. [2019-10-02 13:07:46,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-10-02 13:07:46,617 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:07:46,618 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:07:46,618 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:07:46,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:07:46,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1569565684, now seen corresponding path program 1 times [2019-10-02 13:07:46,619 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:07:46,619 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:07:46,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:46,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:46,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:46,863 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-02 13:07:46,863 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:07:46,864 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:07:47,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:47,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 2953 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:07:47,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:07:47,694 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-02 13:07:47,713 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:07:47,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2019-10-02 13:07:47,714 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-02 13:07:47,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-02 13:07:47,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-10-02 13:07:47,715 INFO L87 Difference]: Start difference. First operand 1011 states and 1368 transitions. Second operand 14 states. [2019-10-02 13:07:52,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:07:52,759 INFO L93 Difference]: Finished difference Result 3654 states and 5082 transitions. [2019-10-02 13:07:52,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-02 13:07:52,759 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 235 [2019-10-02 13:07:52,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:07:52,784 INFO L225 Difference]: With dead ends: 3654 [2019-10-02 13:07:52,784 INFO L226 Difference]: Without dead ends: 2679 [2019-10-02 13:07:52,794 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2019-10-02 13:07:52,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2679 states. [2019-10-02 13:07:52,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2679 to 2673. [2019-10-02 13:07:52,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2673 states. [2019-10-02 13:07:52,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 3680 transitions. [2019-10-02 13:07:52,953 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 3680 transitions. Word has length 235 [2019-10-02 13:07:52,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:07:52,953 INFO L475 AbstractCegarLoop]: Abstraction has 2673 states and 3680 transitions. [2019-10-02 13:07:52,953 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-02 13:07:52,953 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 3680 transitions. [2019-10-02 13:07:52,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-02 13:07:52,962 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:07:52,962 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:07:52,962 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:07:52,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:07:52,963 INFO L82 PathProgramCache]: Analyzing trace with hash 448908197, now seen corresponding path program 1 times [2019-10-02 13:07:52,963 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:07:52,963 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:07:52,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:52,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:52,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:53,177 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-02 13:07:53,177 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:07:53,177 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:07:53,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:53,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 2955 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:07:53,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:07:54,024 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-02 13:07:54,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:07:54,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2019-10-02 13:07:54,039 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-02 13:07:54,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-02 13:07:54,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-02 13:07:54,040 INFO L87 Difference]: Start difference. First operand 2673 states and 3680 transitions. Second operand 10 states. [2019-10-02 13:07:57,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:07:57,892 INFO L93 Difference]: Finished difference Result 9948 states and 14097 transitions. [2019-10-02 13:07:57,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-02 13:07:57,893 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 237 [2019-10-02 13:07:57,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:07:57,944 INFO L225 Difference]: With dead ends: 9948 [2019-10-02 13:07:57,944 INFO L226 Difference]: Without dead ends: 7326 [2019-10-02 13:07:57,961 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2019-10-02 13:07:57,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7326 states. [2019-10-02 13:07:58,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7326 to 7292. [2019-10-02 13:07:58,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7292 states. [2019-10-02 13:07:58,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7292 states to 7292 states and 10183 transitions. [2019-10-02 13:07:58,423 INFO L78 Accepts]: Start accepts. Automaton has 7292 states and 10183 transitions. Word has length 237 [2019-10-02 13:07:58,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:07:58,424 INFO L475 AbstractCegarLoop]: Abstraction has 7292 states and 10183 transitions. [2019-10-02 13:07:58,424 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-02 13:07:58,424 INFO L276 IsEmpty]: Start isEmpty. Operand 7292 states and 10183 transitions. [2019-10-02 13:07:58,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-02 13:07:58,438 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:07:58,438 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:07:58,439 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:07:58,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:07:58,439 INFO L82 PathProgramCache]: Analyzing trace with hash -330114471, now seen corresponding path program 1 times [2019-10-02 13:07:58,439 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:07:58,440 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:07:58,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:58,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:58,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:58,795 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:07:58,796 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:07:58,796 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:07:58,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:59,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 2956 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:07:59,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:07:59,732 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-02 13:07:59,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:07:59,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2019-10-02 13:07:59,755 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-02 13:07:59,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-02 13:07:59,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-10-02 13:07:59,758 INFO L87 Difference]: Start difference. First operand 7292 states and 10183 transitions. Second operand 14 states. [2019-10-02 13:08:05,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:08:05,359 INFO L93 Difference]: Finished difference Result 28041 states and 40262 transitions. [2019-10-02 13:08:05,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-02 13:08:05,360 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 238 [2019-10-02 13:08:05,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:08:05,504 INFO L225 Difference]: With dead ends: 28041 [2019-10-02 13:08:05,504 INFO L226 Difference]: Without dead ends: 20810 [2019-10-02 13:08:05,542 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2019-10-02 13:08:05,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20810 states. [2019-10-02 13:08:06,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20810 to 20746. [2019-10-02 13:08:06,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20746 states. [2019-10-02 13:08:06,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20746 states to 20746 states and 29429 transitions. [2019-10-02 13:08:06,528 INFO L78 Accepts]: Start accepts. Automaton has 20746 states and 29429 transitions. Word has length 238 [2019-10-02 13:08:06,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:08:06,528 INFO L475 AbstractCegarLoop]: Abstraction has 20746 states and 29429 transitions. [2019-10-02 13:08:06,528 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-02 13:08:06,528 INFO L276 IsEmpty]: Start isEmpty. Operand 20746 states and 29429 transitions. [2019-10-02 13:08:06,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-02 13:08:06,553 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:08:06,553 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:08:06,554 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:08:06,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:08:06,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1526551512, now seen corresponding path program 1 times [2019-10-02 13:08:06,554 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:08:06,554 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:08:06,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:06,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:06,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:08,140 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-02 13:08:08,140 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:08:08,140 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:08:08,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:08,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 2958 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:08:08,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:08:09,022 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-02 13:08:09,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:08:09,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [29] total 36 [2019-10-02 13:08:09,040 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-10-02 13:08:09,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-10-02 13:08:09,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2019-10-02 13:08:09,041 INFO L87 Difference]: Start difference. First operand 20746 states and 29429 transitions. Second operand 36 states. [2019-10-02 13:09:19,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:09:19,214 INFO L93 Difference]: Finished difference Result 212926 states and 324633 transitions. [2019-10-02 13:09:19,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2019-10-02 13:09:19,215 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 240 [2019-10-02 13:09:19,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:09:20,402 INFO L225 Difference]: With dead ends: 212926 [2019-10-02 13:09:20,402 INFO L226 Difference]: Without dead ends: 192244 [2019-10-02 13:09:20,623 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6561 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1920, Invalid=21032, Unknown=0, NotChecked=0, Total=22952 [2019-10-02 13:09:20,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192244 states. [2019-10-02 13:09:32,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192244 to 146072. [2019-10-02 13:09:32,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146072 states. [2019-10-02 13:09:32,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146072 states to 146072 states and 219986 transitions. [2019-10-02 13:09:32,963 INFO L78 Accepts]: Start accepts. Automaton has 146072 states and 219986 transitions. Word has length 240 [2019-10-02 13:09:32,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:09:32,963 INFO L475 AbstractCegarLoop]: Abstraction has 146072 states and 219986 transitions. [2019-10-02 13:09:32,963 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-10-02 13:09:32,964 INFO L276 IsEmpty]: Start isEmpty. Operand 146072 states and 219986 transitions. [2019-10-02 13:09:33,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-02 13:09:33,062 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:09:33,062 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:09:33,062 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:09:33,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:09:33,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1602524560, now seen corresponding path program 1 times [2019-10-02 13:09:33,063 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:09:33,063 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:09:33,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:09:33,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:09:33,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:09:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:09:33,708 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-02 13:09:33,709 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:09:33,709 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:09:33,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:09:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:09:34,281 INFO L256 TraceCheckSpWp]: Trace formula consists of 2959 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:09:34,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:09:34,597 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-02 13:09:34,618 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:09:34,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [29] total 34 [2019-10-02 13:09:34,621 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-10-02 13:09:34,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-10-02 13:09:34,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1048, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 13:09:34,623 INFO L87 Difference]: Start difference. First operand 146072 states and 219986 transitions. Second operand 34 states. [2019-10-02 13:10:03,480 WARN L191 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2019-10-02 13:11:06,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:11:06,815 INFO L93 Difference]: Finished difference Result 930639 states and 1459467 transitions. [2019-10-02 13:11:06,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2019-10-02 13:11:06,815 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 241 [2019-10-02 13:11:06,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:11:10,738 INFO L225 Difference]: With dead ends: 930639 [2019-10-02 13:11:10,738 INFO L226 Difference]: Without dead ends: 783398 [2019-10-02 13:11:11,336 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6872 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=1908, Invalid=21044, Unknown=0, NotChecked=0, Total=22952 [2019-10-02 13:11:12,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783398 states. [2019-10-02 13:12:17,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783398 to 666918. [2019-10-02 13:12:17,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 666918 states. [2019-10-02 13:12:32,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666918 states to 666918 states and 1023635 transitions. [2019-10-02 13:12:32,606 INFO L78 Accepts]: Start accepts. Automaton has 666918 states and 1023635 transitions. Word has length 241 [2019-10-02 13:12:32,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:12:32,607 INFO L475 AbstractCegarLoop]: Abstraction has 666918 states and 1023635 transitions. [2019-10-02 13:12:32,607 INFO L476 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-10-02 13:12:32,607 INFO L276 IsEmpty]: Start isEmpty. Operand 666918 states and 1023635 transitions. [2019-10-02 13:12:32,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-02 13:12:32,804 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:12:32,805 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:12:32,805 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:12:32,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:12:32,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1502631132, now seen corresponding path program 1 times [2019-10-02 13:12:32,806 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:12:32,806 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:12:32,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:12:32,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:12:32,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:12:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:12:32,988 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-02 13:12:32,991 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:12:32,991 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:12:33,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:12:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:12:33,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 2961 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:12:33,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:12:33,746 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-02 13:12:33,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:12:33,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2019-10-02 13:12:33,764 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-02 13:12:33,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-02 13:12:33,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2019-10-02 13:12:33,765 INFO L87 Difference]: Start difference. First operand 666918 states and 1023635 transitions. Second operand 16 states. [2019-10-02 13:13:01,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:13:01,010 INFO L93 Difference]: Finished difference Result 739280 states and 1129453 transitions. [2019-10-02 13:13:01,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-02 13:13:01,011 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 243 [2019-10-02 13:13:01,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:13:04,521 INFO L225 Difference]: With dead ends: 739280 [2019-10-02 13:13:04,521 INFO L226 Difference]: Without dead ends: 421932 [2019-10-02 13:13:05,073 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2019-10-02 13:13:05,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421932 states. [2019-10-02 13:13:46,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421932 to 421928. [2019-10-02 13:13:46,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421928 states. [2019-10-02 13:13:49,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421928 states to 421928 states and 654557 transitions. [2019-10-02 13:13:49,430 INFO L78 Accepts]: Start accepts. Automaton has 421928 states and 654557 transitions. Word has length 243 [2019-10-02 13:13:49,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:13:49,430 INFO L475 AbstractCegarLoop]: Abstraction has 421928 states and 654557 transitions. [2019-10-02 13:13:49,431 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-02 13:13:49,431 INFO L276 IsEmpty]: Start isEmpty. Operand 421928 states and 654557 transitions. [2019-10-02 13:13:49,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-02 13:13:49,524 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:13:49,524 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:13:49,525 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:13:49,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:13:49,525 INFO L82 PathProgramCache]: Analyzing trace with hash 635133446, now seen corresponding path program 1 times [2019-10-02 13:13:49,525 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:13:49,525 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:13:49,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:13:49,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:13:49,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:13:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:13:50,063 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-02 13:13:50,063 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:13:50,064 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:13:50,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:13:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:13:50,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 2961 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:13:50,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:13:52,235 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-02 13:13:52,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:13:52,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [29] total 34 [2019-10-02 13:13:52,248 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-10-02 13:13:52,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-10-02 13:13:52,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1048, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 13:13:52,249 INFO L87 Difference]: Start difference. First operand 421928 states and 654557 transitions. Second operand 34 states. [2019-10-02 13:16:00,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:16:00,637 INFO L93 Difference]: Finished difference Result 2082271 states and 3298784 transitions. [2019-10-02 13:16:00,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2019-10-02 13:16:00,638 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 243 [2019-10-02 13:16:00,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:16:26,416 INFO L225 Difference]: With dead ends: 2082271 [2019-10-02 13:16:26,416 INFO L226 Difference]: Without dead ends: 1644295 [2019-10-02 13:16:29,328 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2662 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1111, Invalid=10445, Unknown=0, NotChecked=0, Total=11556 [2019-10-02 13:16:30,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644295 states.