java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec7_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:51,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:51,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:51,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:51,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:51,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:51,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:51,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:51,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:51,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:51,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:51,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:51,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:51,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:51,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:51,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:51,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:51,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:51,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:51,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:51,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:51,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:51,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:51,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:51,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:51,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:51,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:51,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:51,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:51,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:51,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:51,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:51,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:51,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:51,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:51,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:51,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:51,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:51,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:51,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:51,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:51,794 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:17:51,808 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:51,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:51,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:51,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:51,810 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:51,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:51,811 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:51,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:51,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:51,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:51,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:51,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:51,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:51,812 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:51,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:51,812 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:51,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:51,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:51,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:51,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:51,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:51,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:51,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:51,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:51,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:51,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:51,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:51,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:51,815 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:17:52,114 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:52,128 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:52,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:52,133 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:52,134 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:52,135 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product32.cil.c [2019-10-13 21:17:52,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c20494e66/4a35ae13f7d44b8880474cc3be0fd30c/FLAG0427c0db5 [2019-10-13 21:17:52,868 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:52,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product32.cil.c [2019-10-13 21:17:52,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c20494e66/4a35ae13f7d44b8880474cc3be0fd30c/FLAG0427c0db5 [2019-10-13 21:17:52,969 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c20494e66/4a35ae13f7d44b8880474cc3be0fd30c [2019-10-13 21:17:52,978 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:52,980 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:52,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:52,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:52,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:52,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:52" (1/1) ... [2019-10-13 21:17:52,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5184c565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:52, skipping insertion in model container [2019-10-13 21:17:52,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:52" (1/1) ... [2019-10-13 21:17:52,997 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:53,078 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:53,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:53,882 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:54,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:54,149 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:54,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:54 WrapperNode [2019-10-13 21:17:54,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:54,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:54,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:54,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:54,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:54" (1/1) ... [2019-10-13 21:17:54,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:54" (1/1) ... [2019-10-13 21:17:54,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:54" (1/1) ... [2019-10-13 21:17:54,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:54" (1/1) ... [2019-10-13 21:17:54,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:54" (1/1) ... [2019-10-13 21:17:54,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:54" (1/1) ... [2019-10-13 21:17:54,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:54" (1/1) ... [2019-10-13 21:17:54,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:54,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:54,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:54,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:54,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 21:17:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 21:17:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:54,471 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:54,471 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:54,471 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:54,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:54,476 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:54,476 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:54,476 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:54,476 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 21:17:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:17:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:17:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:54,480 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:54,480 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:54,480 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:54,480 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:17:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:17:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:17:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:17:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 21:17:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:54,490 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:54,491 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:54,491 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:54,491 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:54,491 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:54,491 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:54,492 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:54,492 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:54,492 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:54,492 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:54,493 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:54,493 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:54,494 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:54,494 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:54,495 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:54,495 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:54,495 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:54,495 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:54,496 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:54,496 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:54,496 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:54,496 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:54,496 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:54,497 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:54,497 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:54,497 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:54,497 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:54,497 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:54,497 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:54,497 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:54,498 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:54,498 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:54,498 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:54,498 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:54,498 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:54,499 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:54,499 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:54,499 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:54,499 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:54,499 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:54,499 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:54,499 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:54,500 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:54,500 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:17:54,500 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:17:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:54,505 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:54,510 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 21:17:54,511 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 21:17:54,511 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:54,512 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:54,512 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:54,512 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:54,513 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:54,520 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:54,520 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:54,520 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:54,520 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:54,520 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:54,520 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:54,520 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:54,520 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:54,521 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:54,521 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:54,521 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:54,521 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:54,522 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:54,522 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:54,522 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:54,522 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:54,523 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:54,523 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:54,523 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:54,523 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:54,523 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:54,523 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:54,523 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:54,523 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:54,524 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:54,524 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:17:54,524 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:17:54,524 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:17:54,524 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:17:54,524 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:54,524 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:54,525 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 21:17:54,525 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:54,525 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:17:54,525 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:17:54,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 21:17:54,525 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:54,525 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:54,525 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:17:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:17:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:56,722 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:56,722 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:56,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:56 BoogieIcfgContainer [2019-10-13 21:17:56,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:56,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:56,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:56,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:56,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:52" (1/3) ... [2019-10-13 21:17:56,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b44a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:56, skipping insertion in model container [2019-10-13 21:17:56,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:54" (2/3) ... [2019-10-13 21:17:56,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b44a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:56, skipping insertion in model container [2019-10-13 21:17:56,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:56" (3/3) ... [2019-10-13 21:17:56,735 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product32.cil.c [2019-10-13 21:17:56,748 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:56,762 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:56,775 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:56,826 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:56,826 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:56,826 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:56,826 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:56,826 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:56,830 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:56,830 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:56,830 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:56,879 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states. [2019-10-13 21:17:56,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-13 21:17:56,926 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:56,928 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:56,932 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:56,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:56,939 INFO L82 PathProgramCache]: Analyzing trace with hash -311164788, now seen corresponding path program 1 times [2019-10-13 21:17:56,951 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:56,951 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611734695] [2019-10-13 21:17:56,951 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:56,952 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:56,953 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:57,733 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:57,734 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611734695] [2019-10-13 21:17:57,734 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:57,735 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:17:57,735 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132003299] [2019-10-13 21:17:57,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:17:57,743 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:57,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:17:57,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:57,765 INFO L87 Difference]: Start difference. First operand 633 states. Second operand 2 states. [2019-10-13 21:17:57,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:57,886 INFO L93 Difference]: Finished difference Result 896 states and 1218 transitions. [2019-10-13 21:17:57,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:17:57,888 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 191 [2019-10-13 21:17:57,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:57,927 INFO L225 Difference]: With dead ends: 896 [2019-10-13 21:17:57,928 INFO L226 Difference]: Without dead ends: 576 [2019-10-13 21:17:57,940 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:57,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2019-10-13 21:17:58,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2019-10-13 21:17:58,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 576 states. [2019-10-13 21:17:58,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 786 transitions. [2019-10-13 21:17:58,072 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 786 transitions. Word has length 191 [2019-10-13 21:17:58,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:58,076 INFO L462 AbstractCegarLoop]: Abstraction has 576 states and 786 transitions. [2019-10-13 21:17:58,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:17:58,076 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 786 transitions. [2019-10-13 21:17:58,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-13 21:17:58,083 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:58,083 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:58,084 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:58,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:58,084 INFO L82 PathProgramCache]: Analyzing trace with hash 544104814, now seen corresponding path program 1 times [2019-10-13 21:17:58,085 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:58,085 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680133541] [2019-10-13 21:17:58,085 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:58,085 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:58,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:58,422 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:58,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680133541] [2019-10-13 21:17:58,423 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:58,423 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:58,424 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667381687] [2019-10-13 21:17:58,429 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:58,431 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:58,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:58,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:58,432 INFO L87 Difference]: Start difference. First operand 576 states and 786 transitions. Second operand 3 states. [2019-10-13 21:17:58,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:58,495 INFO L93 Difference]: Finished difference Result 879 states and 1180 transitions. [2019-10-13 21:17:58,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:58,496 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-13 21:17:58,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:58,505 INFO L225 Difference]: With dead ends: 879 [2019-10-13 21:17:58,505 INFO L226 Difference]: Without dead ends: 579 [2019-10-13 21:17:58,507 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:58,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2019-10-13 21:17:58,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 578. [2019-10-13 21:17:58,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2019-10-13 21:17:58,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 788 transitions. [2019-10-13 21:17:58,540 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 788 transitions. Word has length 192 [2019-10-13 21:17:58,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:58,541 INFO L462 AbstractCegarLoop]: Abstraction has 578 states and 788 transitions. [2019-10-13 21:17:58,541 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:58,541 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 788 transitions. [2019-10-13 21:17:58,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-13 21:17:58,548 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:58,549 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:58,549 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:58,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:58,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1874665950, now seen corresponding path program 1 times [2019-10-13 21:17:58,550 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:58,550 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365080793] [2019-10-13 21:17:58,550 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:58,550 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:58,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:58,817 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:58,818 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365080793] [2019-10-13 21:17:58,818 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:58,818 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:58,818 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469563865] [2019-10-13 21:17:58,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:58,822 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:58,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:58,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:58,823 INFO L87 Difference]: Start difference. First operand 578 states and 788 transitions. Second operand 3 states. [2019-10-13 21:17:58,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:58,876 INFO L93 Difference]: Finished difference Result 1134 states and 1577 transitions. [2019-10-13 21:17:58,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:58,877 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2019-10-13 21:17:58,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:58,882 INFO L225 Difference]: With dead ends: 1134 [2019-10-13 21:17:58,882 INFO L226 Difference]: Without dead ends: 621 [2019-10-13 21:17:58,885 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:58,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2019-10-13 21:17:58,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 620. [2019-10-13 21:17:58,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-10-13 21:17:58,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 860 transitions. [2019-10-13 21:17:58,916 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 860 transitions. Word has length 202 [2019-10-13 21:17:58,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:58,916 INFO L462 AbstractCegarLoop]: Abstraction has 620 states and 860 transitions. [2019-10-13 21:17:58,917 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:58,917 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 860 transitions. [2019-10-13 21:17:58,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-13 21:17:58,922 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:58,923 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:58,923 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:58,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:58,923 INFO L82 PathProgramCache]: Analyzing trace with hash -620463334, now seen corresponding path program 1 times [2019-10-13 21:17:58,924 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:58,924 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787029173] [2019-10-13 21:17:58,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:58,924 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:58,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:59,247 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:59,247 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787029173] [2019-10-13 21:17:59,248 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:59,248 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:59,249 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564710511] [2019-10-13 21:17:59,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:59,250 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:59,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:59,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:59,251 INFO L87 Difference]: Start difference. First operand 620 states and 860 transitions. Second operand 3 states. [2019-10-13 21:17:59,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:59,306 INFO L93 Difference]: Finished difference Result 1257 states and 1788 transitions. [2019-10-13 21:17:59,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:59,307 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2019-10-13 21:17:59,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:59,316 INFO L225 Difference]: With dead ends: 1257 [2019-10-13 21:17:59,316 INFO L226 Difference]: Without dead ends: 702 [2019-10-13 21:17:59,320 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:59,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2019-10-13 21:17:59,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 701. [2019-10-13 21:17:59,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2019-10-13 21:17:59,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 998 transitions. [2019-10-13 21:17:59,375 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 998 transitions. Word has length 203 [2019-10-13 21:17:59,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:59,376 INFO L462 AbstractCegarLoop]: Abstraction has 701 states and 998 transitions. [2019-10-13 21:17:59,376 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:59,376 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 998 transitions. [2019-10-13 21:17:59,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-13 21:17:59,384 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:59,385 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:59,386 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:59,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:59,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1948319678, now seen corresponding path program 1 times [2019-10-13 21:17:59,386 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:59,387 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734575486] [2019-10-13 21:17:59,388 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:59,388 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:59,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:59,605 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:59,606 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734575486] [2019-10-13 21:17:59,606 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:59,606 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:59,606 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945064035] [2019-10-13 21:17:59,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:59,607 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:59,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:59,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:59,609 INFO L87 Difference]: Start difference. First operand 701 states and 998 transitions. Second operand 3 states. [2019-10-13 21:17:59,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:59,652 INFO L93 Difference]: Finished difference Result 1494 states and 2192 transitions. [2019-10-13 21:17:59,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:59,652 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2019-10-13 21:17:59,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:59,658 INFO L225 Difference]: With dead ends: 1494 [2019-10-13 21:17:59,659 INFO L226 Difference]: Without dead ends: 858 [2019-10-13 21:17:59,661 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:59,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2019-10-13 21:17:59,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 857. [2019-10-13 21:17:59,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2019-10-13 21:17:59,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1262 transitions. [2019-10-13 21:17:59,697 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1262 transitions. Word has length 204 [2019-10-13 21:17:59,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:59,698 INFO L462 AbstractCegarLoop]: Abstraction has 857 states and 1262 transitions. [2019-10-13 21:17:59,698 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:59,698 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1262 transitions. [2019-10-13 21:17:59,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-13 21:17:59,703 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:59,704 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:59,704 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:59,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:59,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1879306950, now seen corresponding path program 1 times [2019-10-13 21:17:59,705 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:59,705 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002697557] [2019-10-13 21:17:59,705 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:59,705 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:59,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:59,927 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:59,927 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002697557] [2019-10-13 21:17:59,927 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:59,928 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:59,928 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12248352] [2019-10-13 21:17:59,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:59,929 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:59,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:59,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:59,929 INFO L87 Difference]: Start difference. First operand 857 states and 1262 transitions. Second operand 3 states. [2019-10-13 21:17:59,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:59,982 INFO L93 Difference]: Finished difference Result 1950 states and 2964 transitions. [2019-10-13 21:17:59,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:59,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-10-13 21:17:59,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:59,990 INFO L225 Difference]: With dead ends: 1950 [2019-10-13 21:17:59,991 INFO L226 Difference]: Without dead ends: 1158 [2019-10-13 21:17:59,994 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:59,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2019-10-13 21:18:00,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1157. [2019-10-13 21:18:00,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1157 states. [2019-10-13 21:18:00,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1766 transitions. [2019-10-13 21:18:00,047 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1766 transitions. Word has length 205 [2019-10-13 21:18:00,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:00,048 INFO L462 AbstractCegarLoop]: Abstraction has 1157 states and 1766 transitions. [2019-10-13 21:18:00,048 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:00,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1766 transitions. [2019-10-13 21:18:00,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-13 21:18:00,057 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:00,057 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:00,058 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:00,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:00,058 INFO L82 PathProgramCache]: Analyzing trace with hash -59408994, now seen corresponding path program 1 times [2019-10-13 21:18:00,058 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:00,059 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284260547] [2019-10-13 21:18:00,059 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:00,059 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:00,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:00,273 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:18:00,274 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284260547] [2019-10-13 21:18:00,274 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:00,275 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:00,275 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617115867] [2019-10-13 21:18:00,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:00,276 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:00,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:00,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:00,277 INFO L87 Difference]: Start difference. First operand 1157 states and 1766 transitions. Second operand 3 states. [2019-10-13 21:18:00,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:00,376 INFO L93 Difference]: Finished difference Result 2826 states and 4436 transitions. [2019-10-13 21:18:00,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:00,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 206 [2019-10-13 21:18:00,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:00,392 INFO L225 Difference]: With dead ends: 2826 [2019-10-13 21:18:00,392 INFO L226 Difference]: Without dead ends: 1734 [2019-10-13 21:18:00,398 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:00,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2019-10-13 21:18:00,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1733. [2019-10-13 21:18:00,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1733 states. [2019-10-13 21:18:00,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 2726 transitions. [2019-10-13 21:18:00,511 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 2726 transitions. Word has length 206 [2019-10-13 21:18:00,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:00,512 INFO L462 AbstractCegarLoop]: Abstraction has 1733 states and 2726 transitions. [2019-10-13 21:18:00,512 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:00,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 2726 transitions. [2019-10-13 21:18:00,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-13 21:18:00,531 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:00,531 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:00,532 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:00,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:00,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1504076601, now seen corresponding path program 1 times [2019-10-13 21:18:00,533 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:00,533 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887177932] [2019-10-13 21:18:00,534 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:00,534 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:00,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:01,258 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:18:01,259 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887177932] [2019-10-13 21:18:01,259 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:01,259 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-13 21:18:01,260 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521548768] [2019-10-13 21:18:01,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 21:18:01,261 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:01,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 21:18:01,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:18:01,263 INFO L87 Difference]: Start difference. First operand 1733 states and 2726 transitions. Second operand 19 states. [2019-10-13 21:18:06,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:06,577 INFO L93 Difference]: Finished difference Result 4360 states and 6828 transitions. [2019-10-13 21:18:06,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-13 21:18:06,577 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 208 [2019-10-13 21:18:06,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:06,611 INFO L225 Difference]: With dead ends: 4360 [2019-10-13 21:18:06,611 INFO L226 Difference]: Without dead ends: 4073 [2019-10-13 21:18:06,615 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-13 21:18:06,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2019-10-13 21:18:06,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 4036. [2019-10-13 21:18:06,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4036 states. [2019-10-13 21:18:06,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 6377 transitions. [2019-10-13 21:18:06,837 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 6377 transitions. Word has length 208 [2019-10-13 21:18:06,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:06,838 INFO L462 AbstractCegarLoop]: Abstraction has 4036 states and 6377 transitions. [2019-10-13 21:18:06,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 21:18:06,838 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 6377 transitions. [2019-10-13 21:18:06,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-13 21:18:06,861 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:06,862 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:06,862 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:06,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:06,863 INFO L82 PathProgramCache]: Analyzing trace with hash 499285188, now seen corresponding path program 1 times [2019-10-13 21:18:06,863 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:06,863 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110578802] [2019-10-13 21:18:06,863 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:06,863 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:06,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:07,170 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:07,171 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110578802] [2019-10-13 21:18:07,171 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:07,171 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 21:18:07,172 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443739543] [2019-10-13 21:18:07,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 21:18:07,174 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:07,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 21:18:07,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:18:07,175 INFO L87 Difference]: Start difference. First operand 4036 states and 6377 transitions. Second operand 13 states. [2019-10-13 21:18:07,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:07,957 INFO L93 Difference]: Finished difference Result 5385 states and 8273 transitions. [2019-10-13 21:18:07,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:18:07,960 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 209 [2019-10-13 21:18:07,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:07,999 INFO L225 Difference]: With dead ends: 5385 [2019-10-13 21:18:07,999 INFO L226 Difference]: Without dead ends: 4170 [2019-10-13 21:18:08,009 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-13 21:18:08,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2019-10-13 21:18:08,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 4170. [2019-10-13 21:18:08,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4170 states. [2019-10-13 21:18:08,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4170 states to 4170 states and 6594 transitions. [2019-10-13 21:18:08,277 INFO L78 Accepts]: Start accepts. Automaton has 4170 states and 6594 transitions. Word has length 209 [2019-10-13 21:18:08,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:08,278 INFO L462 AbstractCegarLoop]: Abstraction has 4170 states and 6594 transitions. [2019-10-13 21:18:08,278 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 21:18:08,278 INFO L276 IsEmpty]: Start isEmpty. Operand 4170 states and 6594 transitions. [2019-10-13 21:18:08,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-13 21:18:08,300 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:08,301 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:08,301 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:08,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:08,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1211410007, now seen corresponding path program 1 times [2019-10-13 21:18:08,302 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:08,302 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349139259] [2019-10-13 21:18:08,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:08,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:08,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:08,716 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:18:08,717 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349139259] [2019-10-13 21:18:08,718 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:08,718 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-13 21:18:08,718 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819377149] [2019-10-13 21:18:08,719 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 21:18:08,720 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:08,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 21:18:08,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:18:08,721 INFO L87 Difference]: Start difference. First operand 4170 states and 6594 transitions. Second operand 15 states. [2019-10-13 21:18:12,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:12,547 INFO L93 Difference]: Finished difference Result 5557 states and 8565 transitions. [2019-10-13 21:18:12,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-13 21:18:12,548 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 209 [2019-10-13 21:18:12,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:12,578 INFO L225 Difference]: With dead ends: 5557 [2019-10-13 21:18:12,578 INFO L226 Difference]: Without dead ends: 4288 [2019-10-13 21:18:12,589 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 21:18:12,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4288 states. [2019-10-13 21:18:12,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4288 to 4251. [2019-10-13 21:18:12,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4251 states. [2019-10-13 21:18:12,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 6732 transitions. [2019-10-13 21:18:12,825 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 6732 transitions. Word has length 209 [2019-10-13 21:18:12,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:12,826 INFO L462 AbstractCegarLoop]: Abstraction has 4251 states and 6732 transitions. [2019-10-13 21:18:12,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 21:18:12,827 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 6732 transitions. [2019-10-13 21:18:12,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-13 21:18:12,855 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:12,856 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:12,856 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:12,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:12,857 INFO L82 PathProgramCache]: Analyzing trace with hash 493886152, now seen corresponding path program 1 times [2019-10-13 21:18:12,857 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:12,857 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644215535] [2019-10-13 21:18:12,858 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:12,858 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:12,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:13,264 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:18:13,265 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644215535] [2019-10-13 21:18:13,266 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:13,266 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-13 21:18:13,266 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181115868] [2019-10-13 21:18:13,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:18:13,267 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:13,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:18:13,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:18:13,268 INFO L87 Difference]: Start difference. First operand 4251 states and 6732 transitions. Second operand 18 states. [2019-10-13 21:18:13,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:13,948 INFO L93 Difference]: Finished difference Result 5668 states and 8728 transitions. [2019-10-13 21:18:13,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 21:18:13,949 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 209 [2019-10-13 21:18:13,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:13,986 INFO L225 Difference]: With dead ends: 5668 [2019-10-13 21:18:13,986 INFO L226 Difference]: Without dead ends: 4298 [2019-10-13 21:18:13,996 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:18:14,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4298 states. [2019-10-13 21:18:14,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4298 to 4296. [2019-10-13 21:18:14,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4296 states. [2019-10-13 21:18:14,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4296 states to 4296 states and 6771 transitions. [2019-10-13 21:18:14,272 INFO L78 Accepts]: Start accepts. Automaton has 4296 states and 6771 transitions. Word has length 209 [2019-10-13 21:18:14,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:14,274 INFO L462 AbstractCegarLoop]: Abstraction has 4296 states and 6771 transitions. [2019-10-13 21:18:14,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:18:14,275 INFO L276 IsEmpty]: Start isEmpty. Operand 4296 states and 6771 transitions. [2019-10-13 21:18:14,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-13 21:18:14,300 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:14,301 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:14,301 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:14,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:14,301 INFO L82 PathProgramCache]: Analyzing trace with hash -216412755, now seen corresponding path program 1 times [2019-10-13 21:18:14,302 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:14,302 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865296711] [2019-10-13 21:18:14,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:14,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:14,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:14,481 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:14,482 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865296711] [2019-10-13 21:18:14,482 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:14,482 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:14,482 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114350854] [2019-10-13 21:18:14,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:14,483 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:14,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:14,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:14,483 INFO L87 Difference]: Start difference. First operand 4296 states and 6771 transitions. Second operand 5 states. [2019-10-13 21:18:15,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:15,861 INFO L93 Difference]: Finished difference Result 8545 states and 13391 transitions. [2019-10-13 21:18:15,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:18:15,862 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2019-10-13 21:18:15,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:15,914 INFO L225 Difference]: With dead ends: 8545 [2019-10-13 21:18:15,915 INFO L226 Difference]: Without dead ends: 7834 [2019-10-13 21:18:15,924 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:18:15,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7834 states. [2019-10-13 21:18:16,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7834 to 7820. [2019-10-13 21:18:16,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7820 states. [2019-10-13 21:18:16,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7820 states to 7820 states and 12337 transitions. [2019-10-13 21:18:16,363 INFO L78 Accepts]: Start accepts. Automaton has 7820 states and 12337 transitions. Word has length 209 [2019-10-13 21:18:16,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:16,364 INFO L462 AbstractCegarLoop]: Abstraction has 7820 states and 12337 transitions. [2019-10-13 21:18:16,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:18:16,364 INFO L276 IsEmpty]: Start isEmpty. Operand 7820 states and 12337 transitions. [2019-10-13 21:18:16,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-13 21:18:16,400 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:16,400 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:16,401 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:16,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:16,401 INFO L82 PathProgramCache]: Analyzing trace with hash -196075380, now seen corresponding path program 1 times [2019-10-13 21:18:16,401 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:16,402 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697735002] [2019-10-13 21:18:16,402 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:16,402 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:16,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:16,629 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:16,629 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697735002] [2019-10-13 21:18:16,629 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:16,630 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:18:16,630 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395117181] [2019-10-13 21:18:16,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:18:16,631 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:16,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:18:16,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:18:16,632 INFO L87 Difference]: Start difference. First operand 7820 states and 12337 transitions. Second operand 7 states. [2019-10-13 21:18:19,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:19,517 INFO L93 Difference]: Finished difference Result 18483 states and 29904 transitions. [2019-10-13 21:18:19,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:18:19,518 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 209 [2019-10-13 21:18:19,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:19,845 INFO L225 Difference]: With dead ends: 18483 [2019-10-13 21:18:19,845 INFO L226 Difference]: Without dead ends: 14982 [2019-10-13 21:18:19,876 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:18:19,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14982 states. [2019-10-13 21:18:20,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14982 to 14976. [2019-10-13 21:18:20,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14976 states. [2019-10-13 21:18:20,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14976 states to 14976 states and 24039 transitions. [2019-10-13 21:18:20,733 INFO L78 Accepts]: Start accepts. Automaton has 14976 states and 24039 transitions. Word has length 209 [2019-10-13 21:18:20,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:20,734 INFO L462 AbstractCegarLoop]: Abstraction has 14976 states and 24039 transitions. [2019-10-13 21:18:20,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:18:20,734 INFO L276 IsEmpty]: Start isEmpty. Operand 14976 states and 24039 transitions. [2019-10-13 21:18:20,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-13 21:18:20,766 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:20,767 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:20,767 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:20,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:20,768 INFO L82 PathProgramCache]: Analyzing trace with hash -428249634, now seen corresponding path program 1 times [2019-10-13 21:18:20,768 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:20,768 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846229135] [2019-10-13 21:18:20,768 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:20,768 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:20,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:21,399 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:21,399 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846229135] [2019-10-13 21:18:21,399 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:21,400 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-13 21:18:21,400 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279257548] [2019-10-13 21:18:21,400 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-13 21:18:21,401 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:21,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-13 21:18:21,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2019-10-13 21:18:21,402 INFO L87 Difference]: Start difference. First operand 14976 states and 24039 transitions. Second operand 28 states. [2019-10-13 21:18:23,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:23,218 INFO L93 Difference]: Finished difference Result 26074 states and 42246 transitions. [2019-10-13 21:18:23,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-10-13 21:18:23,219 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 210 [2019-10-13 21:18:23,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:23,302 INFO L225 Difference]: With dead ends: 26074 [2019-10-13 21:18:23,303 INFO L226 Difference]: Without dead ends: 15417 [2019-10-13 21:18:23,373 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=101, Invalid=1459, Unknown=0, NotChecked=0, Total=1560 [2019-10-13 21:18:23,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15417 states.