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_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 04:51:58,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 04:51:58,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 04:51:58,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 04:51:58,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 04:51:58,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 04:51:58,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 04:51:58,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 04:51:58,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 04:51:58,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 04:51:58,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 04:51:58,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 04:51:58,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 04:51:58,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 04:51:58,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 04:51:58,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 04:51:58,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 04:51:58,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 04:51:58,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 04:51:58,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 04:51:58,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 04:51:58,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 04:51:58,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 04:51:58,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 04:51:58,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 04:51:58,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 04:51:58,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 04:51:58,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 04:51:58,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 04:51:58,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 04:51:58,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 04:51:58,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 04:51:58,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 04:51:58,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 04:51:58,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 04:51:58,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 04:51:58,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 04:51:58,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 04:51:58,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 04:51:58,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 04:51:58,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 04:51:58,206 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 [2019-09-08 04:51:58,234 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 04:51:58,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 04:51:58,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 04:51:58,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 04:51:58,237 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 04:51:58,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 04:51:58,237 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 04:51:58,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 04:51:58,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 04:51:58,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 04:51:58,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 04:51:58,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 04:51:58,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 04:51:58,240 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 04:51:58,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 04:51:58,240 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 04:51:58,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 04:51:58,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 04:51:58,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 04:51:58,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 04:51:58,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 04:51:58,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 04:51:58,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 04:51:58,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 04:51:58,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 04:51:58,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 04:51:58,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 04:51:58,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 04:51:58,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 04:51:58,276 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 04:51:58,297 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 04:51:58,302 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 04:51:58,305 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 04:51:58,306 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 04:51:58,307 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product24.cil.c [2019-09-08 04:51:58,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e870a5a4/ac80187717ad4a8489414207a8e431ed/FLAG768bb92e6 [2019-09-08 04:51:59,100 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 04:51:59,101 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product24.cil.c [2019-09-08 04:51:59,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e870a5a4/ac80187717ad4a8489414207a8e431ed/FLAG768bb92e6 [2019-09-08 04:51:59,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e870a5a4/ac80187717ad4a8489414207a8e431ed [2019-09-08 04:51:59,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 04:51:59,298 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 04:51:59,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 04:51:59,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 04:51:59,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 04:51:59,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 04:51:59" (1/1) ... [2019-09-08 04:51:59,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5338cd07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:51:59, skipping insertion in model container [2019-09-08 04:51:59,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 04:51:59" (1/1) ... [2019-09-08 04:51:59,318 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 04:51:59,401 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 04:52:00,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 04:52:00,105 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 04:52:00,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 04:52:00,462 INFO L192 MainTranslator]: Completed translation [2019-09-08 04:52:00,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:52:00 WrapperNode [2019-09-08 04:52:00,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 04:52:00,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 04:52:00,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 04:52:00,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 04:52:00,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:52:00" (1/1) ... [2019-09-08 04:52:00,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:52:00" (1/1) ... [2019-09-08 04:52:00,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:52:00" (1/1) ... [2019-09-08 04:52:00,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:52:00" (1/1) ... [2019-09-08 04:52:00,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:52:00" (1/1) ... [2019-09-08 04:52:00,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:52:00" (1/1) ... [2019-09-08 04:52:00,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:52:00" (1/1) ... [2019-09-08 04:52:00,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 04:52:00,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 04:52:00,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 04:52:00,775 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 04:52:00,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:52:00" (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 [2019-09-08 04:52:00,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 04:52:00,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 04:52:00,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-08 04:52:00,874 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-09-08 04:52:00,876 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-09-08 04:52:00,876 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-08 04:52:00,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-08 04:52:00,877 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-08 04:52:00,878 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-08 04:52:00,878 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-08 04:52:00,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-08 04:52:00,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-08 04:52:00,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-08 04:52:00,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-08 04:52:00,882 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-08 04:52:00,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-08 04:52:00,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-08 04:52:00,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-08 04:52:00,886 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-08 04:52:00,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-08 04:52:00,887 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-08 04:52:00,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-08 04:52:00,888 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-08 04:52:00,888 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-08 04:52:00,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-08 04:52:00,889 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-08 04:52:00,889 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-08 04:52:00,889 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-08 04:52:00,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-08 04:52:00,890 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-08 04:52:00,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-09-08 04:52:00,892 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-08 04:52:00,892 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-08 04:52:00,893 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-08 04:52:00,893 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-08 04:52:00,893 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-08 04:52:00,894 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-08 04:52:00,894 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-08 04:52:00,894 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-08 04:52:00,895 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-08 04:52:00,895 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-08 04:52:00,895 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-08 04:52:00,895 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-08 04:52:00,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-08 04:52:00,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-08 04:52:00,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-08 04:52:00,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-08 04:52:00,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-08 04:52:00,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-08 04:52:00,897 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-08 04:52:00,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-08 04:52:00,897 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-08 04:52:00,898 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-08 04:52:00,898 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-08 04:52:00,898 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-08 04:52:00,898 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-08 04:52:00,898 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-08 04:52:00,898 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-08 04:52:00,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-08 04:52:00,899 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-08 04:52:00,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-08 04:52:00,900 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-08 04:52:00,900 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-09-08 04:52:00,900 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-08 04:52:00,900 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-08 04:52:00,901 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-09-08 04:52:00,901 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-09-08 04:52:00,902 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-09-08 04:52:00,902 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-08 04:52:00,902 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-08 04:52:00,903 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-08 04:52:00,903 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-08 04:52:00,903 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-08 04:52:00,904 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-08 04:52:00,905 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-08 04:52:00,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-08 04:52:00,905 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-08 04:52:00,906 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-09-08 04:52:00,906 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-09-08 04:52:00,906 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-09-08 04:52:00,907 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-09-08 04:52:00,907 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-08 04:52:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-08 04:52:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-08 04:52:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-08 04:52:00,909 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-08 04:52:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-08 04:52:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-08 04:52:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-08 04:52:00,911 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-08 04:52:00,912 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-08 04:52:00,912 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 04:52:00,912 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-08 04:52:00,913 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-08 04:52:00,913 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-08 04:52:00,913 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-08 04:52:00,913 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-08 04:52:00,914 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-08 04:52:00,914 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-08 04:52:00,914 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-08 04:52:00,914 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-08 04:52:00,914 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-09-08 04:52:00,915 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-09-08 04:52:00,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-08 04:52:00,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-08 04:52:00,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-08 04:52:00,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-08 04:52:00,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-08 04:52:00,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-08 04:52:00,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-08 04:52:00,917 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-08 04:52:00,917 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-08 04:52:00,918 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-08 04:52:00,918 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-08 04:52:00,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 04:52:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 04:52:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-08 04:52:00,920 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-08 04:52:00,920 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-08 04:52:00,920 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-08 04:52:00,921 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-08 04:52:00,921 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-08 04:52:00,921 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-08 04:52:00,922 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-08 04:52:00,924 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-08 04:52:00,924 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-08 04:52:00,924 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-08 04:52:00,924 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-08 04:52:00,925 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-08 04:52:00,925 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-09-08 04:52:00,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 04:52:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-09-08 04:52:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-08 04:52:00,928 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-08 04:52:00,928 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-08 04:52:00,928 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-08 04:52:00,929 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-08 04:52:00,929 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-08 04:52:00,930 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-08 04:52:00,932 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-08 04:52:00,937 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-08 04:52:00,938 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-08 04:52:00,939 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-08 04:52:00,940 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-08 04:52:00,947 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-08 04:52:00,948 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-08 04:52:00,948 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-08 04:52:00,948 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-08 04:52:00,948 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-09-08 04:52:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-08 04:52:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-08 04:52:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-08 04:52:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-08 04:52:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-08 04:52:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-08 04:52:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-08 04:52:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-08 04:52:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-08 04:52:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-08 04:52:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-08 04:52:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-08 04:52:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-08 04:52:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-08 04:52:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-08 04:52:00,952 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-08 04:52:00,953 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-08 04:52:00,953 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-08 04:52:00,953 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-08 04:52:00,953 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-08 04:52:00,953 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-08 04:52:00,954 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-08 04:52:00,954 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-08 04:52:00,954 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-08 04:52:00,954 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-08 04:52:00,955 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-08 04:52:00,955 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-08 04:52:00,955 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-08 04:52:00,955 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-08 04:52:00,956 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-08 04:52:00,956 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-08 04:52:00,956 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-08 04:52:00,956 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-08 04:52:00,957 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-08 04:52:00,957 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-08 04:52:00,957 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-08 04:52:00,958 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-08 04:52:00,958 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-08 04:52:00,958 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-08 04:52:00,958 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-08 04:52:00,959 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-08 04:52:00,959 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-09-08 04:52:00,959 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-09-08 04:52:00,959 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-09-08 04:52:00,960 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-09-08 04:52:00,960 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-09-08 04:52:00,960 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-09-08 04:52:00,961 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-09-08 04:52:00,961 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-09-08 04:52:00,961 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-08 04:52:00,961 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-09-08 04:52:00,962 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-08 04:52:00,962 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-08 04:52:00,962 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-08 04:52:00,962 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-09-08 04:52:00,963 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-08 04:52:00,963 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-08 04:52:00,963 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-08 04:52:00,964 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-08 04:52:00,964 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-08 04:52:00,964 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-08 04:52:00,964 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-08 04:52:00,965 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-08 04:52:00,965 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-08 04:52:00,965 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-08 04:52:00,965 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-08 04:52:00,966 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-08 04:52:00,966 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-08 04:52:00,966 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 04:52:00,966 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-08 04:52:00,967 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-08 04:52:00,967 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-08 04:52:00,967 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-08 04:52:00,967 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-08 04:52:00,968 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-08 04:52:00,968 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-08 04:52:00,968 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 04:52:00,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-08 04:52:00,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-08 04:52:00,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 04:52:00,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 04:52:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 04:52:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-08 04:52:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 04:52:00,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-08 04:52:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-08 04:52:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 04:52:00,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-08 04:52:00,972 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-08 04:52:00,972 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-08 04:52:00,972 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-08 04:52:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 04:52:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 04:52:00,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 04:52:03,514 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 04:52:03,515 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-08 04:52:03,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 04:52:03 BoogieIcfgContainer [2019-09-08 04:52:03,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 04:52:03,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 04:52:03,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 04:52:03,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 04:52:03,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 04:51:59" (1/3) ... [2019-09-08 04:52:03,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4542309b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 04:52:03, skipping insertion in model container [2019-09-08 04:52:03,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:52:00" (2/3) ... [2019-09-08 04:52:03,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4542309b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 04:52:03, skipping insertion in model container [2019-09-08 04:52:03,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 04:52:03" (3/3) ... [2019-09-08 04:52:03,526 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product24.cil.c [2019-09-08 04:52:03,538 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 04:52:03,550 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 04:52:03,571 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 04:52:03,610 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 04:52:03,610 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 04:52:03,611 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 04:52:03,611 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 04:52:03,611 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 04:52:03,611 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 04:52:03,611 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 04:52:03,611 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 04:52:03,612 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 04:52:03,646 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states. [2019-09-08 04:52:03,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-09-08 04:52:03,671 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:52:03,672 INFO L399 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] [2019-09-08 04:52:03,675 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:52:03,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:52:03,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1375870592, now seen corresponding path program 1 times [2019-09-08 04:52:03,684 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:52:03,684 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:52:03,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:03,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:52:03,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:52:04,313 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-08 04:52:04,317 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:52:04,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 04:52:04,327 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 04:52:04,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 04:52:04,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 04:52:04,352 INFO L87 Difference]: Start difference. First operand 528 states. Second operand 2 states. [2019-09-08 04:52:04,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:52:04,488 INFO L93 Difference]: Finished difference Result 787 states and 1034 transitions. [2019-09-08 04:52:04,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 04:52:04,489 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 181 [2019-09-08 04:52:04,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:52:04,524 INFO L225 Difference]: With dead ends: 787 [2019-09-08 04:52:04,525 INFO L226 Difference]: Without dead ends: 505 [2019-09-08 04:52:04,538 INFO L628 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 [2019-09-08 04:52:04,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2019-09-08 04:52:04,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 505. [2019-09-08 04:52:04,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2019-09-08 04:52:04,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 666 transitions. [2019-09-08 04:52:04,699 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 666 transitions. Word has length 181 [2019-09-08 04:52:04,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:52:04,701 INFO L475 AbstractCegarLoop]: Abstraction has 505 states and 666 transitions. [2019-09-08 04:52:04,701 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 04:52:04,702 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 666 transitions. [2019-09-08 04:52:04,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-09-08 04:52:04,708 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:52:04,709 INFO L399 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] [2019-09-08 04:52:04,709 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:52:04,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:52:04,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1672836718, now seen corresponding path program 1 times [2019-09-08 04:52:04,710 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:52:04,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:52:04,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:04,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:52:04,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:52:05,044 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-08 04:52:05,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:52:05,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 04:52:05,047 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 04:52:05,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 04:52:05,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 04:52:05,048 INFO L87 Difference]: Start difference. First operand 505 states and 666 transitions. Second operand 3 states. [2019-09-08 04:52:05,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:52:05,092 INFO L93 Difference]: Finished difference Result 770 states and 998 transitions. [2019-09-08 04:52:05,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 04:52:05,093 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2019-09-08 04:52:05,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:52:05,098 INFO L225 Difference]: With dead ends: 770 [2019-09-08 04:52:05,098 INFO L226 Difference]: Without dead ends: 508 [2019-09-08 04:52:05,100 INFO L628 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 [2019-09-08 04:52:05,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2019-09-08 04:52:05,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 507. [2019-09-08 04:52:05,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2019-09-08 04:52:05,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 668 transitions. [2019-09-08 04:52:05,134 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 668 transitions. Word has length 182 [2019-09-08 04:52:05,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:52:05,136 INFO L475 AbstractCegarLoop]: Abstraction has 507 states and 668 transitions. [2019-09-08 04:52:05,137 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 04:52:05,137 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 668 transitions. [2019-09-08 04:52:05,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-09-08 04:52:05,146 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:52:05,146 INFO L399 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, 1, 1, 1, 1, 1] [2019-09-08 04:52:05,146 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:52:05,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:52:05,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1352158941, now seen corresponding path program 1 times [2019-09-08 04:52:05,147 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:52:05,147 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:52:05,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:05,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:52:05,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:52:05,346 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-08 04:52:05,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:52:05,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 04:52:05,347 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 04:52:05,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 04:52:05,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 04:52:05,348 INFO L87 Difference]: Start difference. First operand 507 states and 668 transitions. Second operand 3 states. [2019-09-08 04:52:05,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:52:05,403 INFO L93 Difference]: Finished difference Result 992 states and 1337 transitions. [2019-09-08 04:52:05,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 04:52:05,404 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-09-08 04:52:05,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:52:05,413 INFO L225 Difference]: With dead ends: 992 [2019-09-08 04:52:05,413 INFO L226 Difference]: Without dead ends: 550 [2019-09-08 04:52:05,416 INFO L628 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 [2019-09-08 04:52:05,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2019-09-08 04:52:05,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 549. [2019-09-08 04:52:05,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2019-09-08 04:52:05,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 740 transitions. [2019-09-08 04:52:05,463 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 740 transitions. Word has length 194 [2019-09-08 04:52:05,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:52:05,465 INFO L475 AbstractCegarLoop]: Abstraction has 549 states and 740 transitions. [2019-09-08 04:52:05,465 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 04:52:05,465 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 740 transitions. [2019-09-08 04:52:05,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-09-08 04:52:05,474 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:52:05,474 INFO L399 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, 1, 1, 1, 1, 1, 1] [2019-09-08 04:52:05,475 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:52:05,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:52:05,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1151159217, now seen corresponding path program 1 times [2019-09-08 04:52:05,475 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:52:05,476 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:52:05,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:05,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:52:05,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:52:05,680 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-08 04:52:05,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:52:05,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 04:52:05,682 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 04:52:05,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 04:52:05,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 04:52:05,684 INFO L87 Difference]: Start difference. First operand 549 states and 740 transitions. Second operand 3 states. [2019-09-08 04:52:05,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:52:05,727 INFO L93 Difference]: Finished difference Result 1115 states and 1548 transitions. [2019-09-08 04:52:05,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 04:52:05,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2019-09-08 04:52:05,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:52:05,736 INFO L225 Difference]: With dead ends: 1115 [2019-09-08 04:52:05,736 INFO L226 Difference]: Without dead ends: 631 [2019-09-08 04:52:05,738 INFO L628 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 [2019-09-08 04:52:05,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-09-08 04:52:05,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 630. [2019-09-08 04:52:05,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2019-09-08 04:52:05,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 878 transitions. [2019-09-08 04:52:05,773 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 878 transitions. Word has length 195 [2019-09-08 04:52:05,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:52:05,774 INFO L475 AbstractCegarLoop]: Abstraction has 630 states and 878 transitions. [2019-09-08 04:52:05,774 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 04:52:05,774 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 878 transitions. [2019-09-08 04:52:05,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-09-08 04:52:05,778 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:52:05,779 INFO L399 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] [2019-09-08 04:52:05,779 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:52:05,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:52:05,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1181294748, now seen corresponding path program 1 times [2019-09-08 04:52:05,779 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:52:05,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:52:05,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:05,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:52:05,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:52:06,027 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-08 04:52:06,027 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:52:06,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 04:52:06,029 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 04:52:06,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 04:52:06,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 04:52:06,030 INFO L87 Difference]: Start difference. First operand 630 states and 878 transitions. Second operand 8 states. [2019-09-08 04:52:06,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:52:06,130 INFO L93 Difference]: Finished difference Result 879 states and 1195 transitions. [2019-09-08 04:52:06,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 04:52:06,131 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 198 [2019-09-08 04:52:06,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:52:06,135 INFO L225 Difference]: With dead ends: 879 [2019-09-08 04:52:06,136 INFO L226 Difference]: Without dead ends: 630 [2019-09-08 04:52:06,137 INFO L628 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 [2019-09-08 04:52:06,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2019-09-08 04:52:06,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 630. [2019-09-08 04:52:06,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2019-09-08 04:52:06,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 877 transitions. [2019-09-08 04:52:06,174 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 877 transitions. Word has length 198 [2019-09-08 04:52:06,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:52:06,176 INFO L475 AbstractCegarLoop]: Abstraction has 630 states and 877 transitions. [2019-09-08 04:52:06,176 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 04:52:06,176 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 877 transitions. [2019-09-08 04:52:06,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-09-08 04:52:06,181 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:52:06,182 INFO L399 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, 1] [2019-09-08 04:52:06,182 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:52:06,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:52:06,183 INFO L82 PathProgramCache]: Analyzing trace with hash -183350682, now seen corresponding path program 1 times [2019-09-08 04:52:06,183 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:52:06,183 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:52:06,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:06,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:52:06,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:52:06,499 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-08 04:52:06,499 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:52:06,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 04:52:06,500 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 04:52:06,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 04:52:06,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-08 04:52:06,501 INFO L87 Difference]: Start difference. First operand 630 states and 877 transitions. Second operand 7 states. [2019-09-08 04:52:09,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:52:09,634 INFO L93 Difference]: Finished difference Result 1151 states and 1540 transitions. [2019-09-08 04:52:09,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 04:52:09,636 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 205 [2019-09-08 04:52:09,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:52:09,643 INFO L225 Difference]: With dead ends: 1151 [2019-09-08 04:52:09,643 INFO L226 Difference]: Without dead ends: 894 [2019-09-08 04:52:09,644 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-08 04:52:09,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2019-09-08 04:52:09,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 885. [2019-09-08 04:52:09,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 885 states. [2019-09-08 04:52:09,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1199 transitions. [2019-09-08 04:52:09,686 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1199 transitions. Word has length 205 [2019-09-08 04:52:09,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:52:09,687 INFO L475 AbstractCegarLoop]: Abstraction has 885 states and 1199 transitions. [2019-09-08 04:52:09,687 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 04:52:09,687 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1199 transitions. [2019-09-08 04:52:09,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-09-08 04:52:09,692 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:52:09,692 INFO L399 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, 1, 1] [2019-09-08 04:52:09,692 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:52:09,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:52:09,693 INFO L82 PathProgramCache]: Analyzing trace with hash -603889462, now seen corresponding path program 1 times [2019-09-08 04:52:09,693 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:52:09,693 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:52:09,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:09,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:52:09,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:52:10,357 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-08 04:52:10,358 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:52:10,358 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-09-08 04:52:10,359 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-09-08 04:52:10,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-09-08 04:52:10,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2019-09-08 04:52:10,361 INFO L87 Difference]: Start difference. First operand 885 states and 1199 transitions. Second operand 26 states. [2019-09-08 04:52:11,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:52:11,287 INFO L93 Difference]: Finished difference Result 1495 states and 1984 transitions. [2019-09-08 04:52:11,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-08 04:52:11,288 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 206 [2019-09-08 04:52:11,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:52:11,300 INFO L225 Difference]: With dead ends: 1495 [2019-09-08 04:52:11,301 INFO L226 Difference]: Without dead ends: 933 [2019-09-08 04:52:11,304 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=1239, Unknown=0, NotChecked=0, Total=1332 [2019-09-08 04:52:11,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2019-09-08 04:52:11,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 929. [2019-09-08 04:52:11,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2019-09-08 04:52:11,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1251 transitions. [2019-09-08 04:52:11,373 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1251 transitions. Word has length 206 [2019-09-08 04:52:11,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:52:11,374 INFO L475 AbstractCegarLoop]: Abstraction has 929 states and 1251 transitions. [2019-09-08 04:52:11,374 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-09-08 04:52:11,374 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1251 transitions. [2019-09-08 04:52:11,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-09-08 04:52:11,379 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:52:11,380 INFO L399 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, 1, 1] [2019-09-08 04:52:11,380 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:52:11,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:52:11,380 INFO L82 PathProgramCache]: Analyzing trace with hash 525734107, now seen corresponding path program 1 times [2019-09-08 04:52:11,380 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:52:11,381 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:52:11,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:11,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:52:11,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:52:11,615 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-09-08 04:52:11,615 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:52:11,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 04:52:11,616 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 04:52:11,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 04:52:11,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 04:52:11,617 INFO L87 Difference]: Start difference. First operand 929 states and 1251 transitions. Second operand 8 states. [2019-09-08 04:52:17,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:52:17,155 INFO L93 Difference]: Finished difference Result 2613 states and 3397 transitions. [2019-09-08 04:52:17,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-08 04:52:17,157 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 237 [2019-09-08 04:52:17,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:52:17,173 INFO L225 Difference]: With dead ends: 2613 [2019-09-08 04:52:17,173 INFO L226 Difference]: Without dead ends: 2079 [2019-09-08 04:52:17,179 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2019-09-08 04:52:17,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2019-09-08 04:52:17,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 2065. [2019-09-08 04:52:17,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2065 states. [2019-09-08 04:52:17,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2707 transitions. [2019-09-08 04:52:17,344 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 2707 transitions. Word has length 237 [2019-09-08 04:52:17,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:52:17,345 INFO L475 AbstractCegarLoop]: Abstraction has 2065 states and 2707 transitions. [2019-09-08 04:52:17,345 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 04:52:17,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 2707 transitions. [2019-09-08 04:52:17,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-09-08 04:52:17,351 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:52:17,352 INFO L399 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, 1, 1, 1] [2019-09-08 04:52:17,352 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:52:17,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:52:17,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1095480358, now seen corresponding path program 1 times [2019-09-08 04:52:17,353 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:52:17,353 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:52:17,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:17,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:52:17,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:52:17,719 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-09-08 04:52:17,720 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:52:17,720 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-09-08 04:52:17,721 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-08 04:52:17,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-08 04:52:17,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-09-08 04:52:17,722 INFO L87 Difference]: Start difference. First operand 2065 states and 2707 transitions. Second operand 18 states. [2019-09-08 04:52:18,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:52:18,202 INFO L93 Difference]: Finished difference Result 2787 states and 3624 transitions. [2019-09-08 04:52:18,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-08 04:52:18,202 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 238 [2019-09-08 04:52:18,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:52:18,214 INFO L225 Difference]: With dead ends: 2787 [2019-09-08 04:52:18,214 INFO L226 Difference]: Without dead ends: 1548 [2019-09-08 04:52:18,220 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-09-08 04:52:18,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2019-09-08 04:52:18,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1542. [2019-09-08 04:52:18,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1542 states. [2019-09-08 04:52:18,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 2049 transitions. [2019-09-08 04:52:18,310 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 2049 transitions. Word has length 238 [2019-09-08 04:52:18,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:52:18,311 INFO L475 AbstractCegarLoop]: Abstraction has 1542 states and 2049 transitions. [2019-09-08 04:52:18,312 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-08 04:52:18,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 2049 transitions. [2019-09-08 04:52:18,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-09-08 04:52:18,318 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:52:18,319 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 04:52:18,319 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:52:18,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:52:18,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1647463807, now seen corresponding path program 1 times [2019-09-08 04:52:18,320 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:52:18,320 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:52:18,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:18,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:52:18,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:52:18,608 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-09-08 04:52:18,609 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 04:52:18,609 INFO L223 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 [2019-09-08 04:52:18,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:52:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:52:19,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 2840 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 04:52:19,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 04:52:19,462 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-09-08 04:52:19,470 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 04:52:19,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2019-09-08 04:52:19,472 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 04:52:19,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 04:52:19,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-09-08 04:52:19,473 INFO L87 Difference]: Start difference. First operand 1542 states and 2049 transitions. Second operand 14 states. [2019-09-08 04:52:24,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:52:24,790 INFO L93 Difference]: Finished difference Result 5614 states and 7563 transitions. [2019-09-08 04:52:24,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-09-08 04:52:24,790 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 247 [2019-09-08 04:52:24,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:52:24,816 INFO L225 Difference]: With dead ends: 5614 [2019-09-08 04:52:24,816 INFO L226 Difference]: Without dead ends: 4104 [2019-09-08 04:52:24,824 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2019-09-08 04:52:24,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4104 states. [2019-09-08 04:52:25,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4104 to 3986. [2019-09-08 04:52:25,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3986 states. [2019-09-08 04:52:25,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3986 states to 3986 states and 5344 transitions. [2019-09-08 04:52:25,020 INFO L78 Accepts]: Start accepts. Automaton has 3986 states and 5344 transitions. Word has length 247 [2019-09-08 04:52:25,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:52:25,021 INFO L475 AbstractCegarLoop]: Abstraction has 3986 states and 5344 transitions. [2019-09-08 04:52:25,021 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 04:52:25,021 INFO L276 IsEmpty]: Start isEmpty. Operand 3986 states and 5344 transitions. [2019-09-08 04:52:25,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-09-08 04:52:25,032 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:52:25,033 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 04:52:25,033 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:52:25,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:52:25,034 INFO L82 PathProgramCache]: Analyzing trace with hash -2063849426, now seen corresponding path program 1 times [2019-09-08 04:52:25,034 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:52:25,034 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:52:25,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:25,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:52:25,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:52:25,371 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-09-08 04:52:25,372 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 04:52:25,372 INFO L223 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 [2019-09-08 04:52:25,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:52:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:52:26,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 2842 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 04:52:26,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 04:52:26,297 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (3)] Exception during sending of exit command (exit): Stream closed [2019-09-08 04:52:26,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 04:52:26,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2019-09-08 04:52:26,317 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 04:52:26,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 04:52:26,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-09-08 04:52:26,318 INFO L87 Difference]: Start difference. First operand 3986 states and 5344 transitions. Second operand 12 states. [2019-09-08 04:52:30,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:52:30,793 INFO L93 Difference]: Finished difference Result 14401 states and 19552 transitions. [2019-09-08 04:52:30,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-09-08 04:52:30,794 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 249 [2019-09-08 04:52:30,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:52:30,862 INFO L225 Difference]: With dead ends: 14401 [2019-09-08 04:52:30,863 INFO L226 Difference]: Without dead ends: 10454 [2019-09-08 04:52:30,884 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2019-09-08 04:52:30,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10454 states. [2019-09-08 04:52:31,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10454 to 10007. [2019-09-08 04:52:31,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10007 states. [2019-09-08 04:52:31,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10007 states to 10007 states and 13546 transitions. [2019-09-08 04:52:31,480 INFO L78 Accepts]: Start accepts. Automaton has 10007 states and 13546 transitions. Word has length 249 [2019-09-08 04:52:31,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:52:31,480 INFO L475 AbstractCegarLoop]: Abstraction has 10007 states and 13546 transitions. [2019-09-08 04:52:31,480 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 04:52:31,480 INFO L276 IsEmpty]: Start isEmpty. Operand 10007 states and 13546 transitions. [2019-09-08 04:52:31,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-09-08 04:52:31,502 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:52:31,503 INFO L399 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, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 04:52:31,503 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:52:31,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:52:31,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1908240610, now seen corresponding path program 1 times [2019-09-08 04:52:31,504 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:52:31,504 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:52:31,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:31,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:52:31,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:52:31,737 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-09-08 04:52:31,737 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 04:52:31,737 INFO L223 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) [2019-09-08 04:52:31,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 04:52:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:52:32,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 2843 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 04:52:32,392 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 04:52:32,544 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-09-08 04:52:32,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 04:52:32,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2019-09-08 04:52:32,554 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 04:52:32,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 04:52:32,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-09-08 04:52:32,555 INFO L87 Difference]: Start difference. First operand 10007 states and 13546 transitions. Second operand 12 states. [2019-09-08 04:52:38,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:52:38,336 INFO L93 Difference]: Finished difference Result 36560 states and 50164 transitions. [2019-09-08 04:52:38,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 04:52:38,337 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 250 [2019-09-08 04:52:38,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:52:38,480 INFO L225 Difference]: With dead ends: 36560 [2019-09-08 04:52:38,480 INFO L226 Difference]: Without dead ends: 26582 [2019-09-08 04:52:38,532 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2019-09-08 04:52:38,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26582 states. [2019-09-08 04:52:40,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26582 to 26242. [2019-09-08 04:52:40,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26242 states. [2019-09-08 04:52:40,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26242 states to 26242 states and 35722 transitions. [2019-09-08 04:52:40,652 INFO L78 Accepts]: Start accepts. Automaton has 26242 states and 35722 transitions. Word has length 250 [2019-09-08 04:52:40,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:52:40,652 INFO L475 AbstractCegarLoop]: Abstraction has 26242 states and 35722 transitions. [2019-09-08 04:52:40,652 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 04:52:40,653 INFO L276 IsEmpty]: Start isEmpty. Operand 26242 states and 35722 transitions. [2019-09-08 04:52:40,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2019-09-08 04:52:40,686 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:52:40,687 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 04:52:40,687 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:52:40,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:52:40,688 INFO L82 PathProgramCache]: Analyzing trace with hash -629786702, now seen corresponding path program 1 times [2019-09-08 04:52:40,688 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:52:40,688 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:52:40,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:40,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:52:40,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:52:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:52:41,299 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-09-08 04:52:41,299 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 04:52:41,299 INFO L223 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 [2019-09-08 04:52:41,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:52:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:52:41,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 2845 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 04:52:41,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 04:52:42,299 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-09-08 04:52:42,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 04:52:42,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [29] total 36 [2019-09-08 04:52:42,308 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-08 04:52:42,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-08 04:52:42,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2019-09-08 04:52:42,309 INFO L87 Difference]: Start difference. First operand 26242 states and 35722 transitions. Second operand 36 states. [2019-09-08 04:53:45,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:53:45,036 INFO L93 Difference]: Finished difference Result 269130 states and 383652 transitions. [2019-09-08 04:53:45,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2019-09-08 04:53:45,037 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 252 [2019-09-08 04:53:45,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:53:46,126 INFO L225 Difference]: With dead ends: 269130 [2019-09-08 04:53:46,127 INFO L226 Difference]: Without dead ends: 242796 [2019-09-08 04:53:46,314 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6789 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1920, Invalid=21032, Unknown=0, NotChecked=0, Total=22952 [2019-09-08 04:53:46,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242796 states. [2019-09-08 04:54:00,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242796 to 177042. [2019-09-08 04:54:00,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177042 states. [2019-09-08 04:54:01,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177042 states to 177042 states and 248700 transitions. [2019-09-08 04:54:01,131 INFO L78 Accepts]: Start accepts. Automaton has 177042 states and 248700 transitions. Word has length 252 [2019-09-08 04:54:01,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:54:01,132 INFO L475 AbstractCegarLoop]: Abstraction has 177042 states and 248700 transitions. [2019-09-08 04:54:01,132 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-08 04:54:01,132 INFO L276 IsEmpty]: Start isEmpty. Operand 177042 states and 248700 transitions. [2019-09-08 04:54:01,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-09-08 04:54:01,316 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:54:01,317 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 04:54:01,317 INFO L418 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:54:01,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:54:01,318 INFO L82 PathProgramCache]: Analyzing trace with hash 585076797, now seen corresponding path program 1 times [2019-09-08 04:54:01,318 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:54:01,318 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:54:01,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:01,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:01,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:03,103 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-09-08 04:54:03,104 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 04:54:03,104 INFO L223 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 [2019-09-08 04:54:03,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:03,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 2846 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 04:54:03,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 04:54:03,964 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (6)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 04:54:03,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 04:54:03,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [29] total 34 [2019-09-08 04:54:03,985 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-09-08 04:54:03,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-09-08 04:54:03,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1048, Unknown=0, NotChecked=0, Total=1122 [2019-09-08 04:54:03,988 INFO L87 Difference]: Start difference. First operand 177042 states and 248700 transitions. Second operand 34 states. [2019-09-08 04:55:33,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:55:33,737 INFO L93 Difference]: Finished difference Result 1004455 states and 1439794 transitions. [2019-09-08 04:55:33,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2019-09-08 04:55:33,738 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 253 [2019-09-08 04:55:33,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:55:37,342 INFO L225 Difference]: With dead ends: 1004455 [2019-09-08 04:55:37,343 INFO L226 Difference]: Without dead ends: 826434 [2019-09-08 04:55:37,936 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6999 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=1908, Invalid=21044, Unknown=0, NotChecked=0, Total=22952 [2019-09-08 04:55:39,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826434 states. [2019-09-08 04:56:42,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826434 to 651006. [2019-09-08 04:56:42,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651006 states. [2019-09-08 04:56:46,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651006 states to 651006 states and 922547 transitions. [2019-09-08 04:56:46,710 INFO L78 Accepts]: Start accepts. Automaton has 651006 states and 922547 transitions. Word has length 253 [2019-09-08 04:56:46,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:56:46,710 INFO L475 AbstractCegarLoop]: Abstraction has 651006 states and 922547 transitions. [2019-09-08 04:56:46,710 INFO L476 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-09-08 04:56:46,711 INFO L276 IsEmpty]: Start isEmpty. Operand 651006 states and 922547 transitions. [2019-09-08 04:56:47,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-09-08 04:56:47,006 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:56:47,006 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 04:56:47,007 INFO L418 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:56:47,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:56:47,007 INFO L82 PathProgramCache]: Analyzing trace with hash -2115179870, now seen corresponding path program 1 times [2019-09-08 04:56:47,007 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:56:47,007 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:56:47,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:56:47,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:56:47,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:56:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:56:47,665 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-09-08 04:56:47,665 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 04:56:47,665 INFO L223 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 [2019-09-08 04:56:47,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:56:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:56:48,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 2848 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 04:56:48,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 04:56:48,384 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (7)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 04:56:48,400 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 04:56:48,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [29] total 34 [2019-09-08 04:56:48,402 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-09-08 04:56:48,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-09-08 04:56:48,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1048, Unknown=0, NotChecked=0, Total=1122 [2019-09-08 04:56:48,403 INFO L87 Difference]: Start difference. First operand 651006 states and 922547 transitions. Second operand 34 states. [2019-09-08 04:58:15,438 WARN L188 SmtUtils]: Spent 10.29 s on a formula simplification that was a NOOP. DAG size: 15 [2019-09-08 05:00:16,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:00:16,181 INFO L93 Difference]: Finished difference Result 2902709 states and 4148751 transitions. [2019-09-08 05:00:16,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2019-09-08 05:00:16,182 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 255 [2019-09-08 05:00:16,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:00:29,821 INFO L225 Difference]: With dead ends: 2902709 [2019-09-08 05:00:29,821 INFO L226 Difference]: Without dead ends: 2248564 [2019-09-08 05:00:31,583 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6999 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=1908, Invalid=21044, Unknown=0, NotChecked=0, Total=22952 [2019-09-08 05:00:33,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248564 states.