java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:18,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:18,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:18,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:18,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:18,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:18,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:18,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:18,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:18,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:18,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:18,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:18,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:18,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:18,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:18,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:18,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:18,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:18,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:18,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:18,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:18,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:18,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:18,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:18,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:18,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:18,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:18,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:18,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:18,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:18,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:18,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:18,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:18,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:18,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:18,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:18,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:18,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:18,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:18,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:18,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:18,710 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 21:17:18,724 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:18,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:18,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:18,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:18,726 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:18,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:18,726 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:18,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:18,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:18,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:18,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:18,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:18,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:18,727 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:18,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:18,728 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:18,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:18,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:18,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:18,729 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:18,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:18,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:18,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:18,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:18,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:18,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:18,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:18,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:18,731 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 21:17:19,056 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:19,079 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:19,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:19,084 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:19,085 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:19,086 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product32.cil.c [2019-10-13 21:17:19,166 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95eedac7f/b6d02f1caa1a4ec7bbfef3f81bd32c2c/FLAG7f8496bd5 [2019-10-13 21:17:19,838 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:19,838 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product32.cil.c [2019-10-13 21:17:19,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95eedac7f/b6d02f1caa1a4ec7bbfef3f81bd32c2c/FLAG7f8496bd5 [2019-10-13 21:17:20,015 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95eedac7f/b6d02f1caa1a4ec7bbfef3f81bd32c2c [2019-10-13 21:17:20,026 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:20,028 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:20,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:20,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:20,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:20,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:20" (1/1) ... [2019-10-13 21:17:20,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7730a066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:20, skipping insertion in model container [2019-10-13 21:17:20,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:20" (1/1) ... [2019-10-13 21:17:20,046 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:20,130 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:21,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:21,031 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:21,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:21,296 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:21,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:21 WrapperNode [2019-10-13 21:17:21,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:21,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:21,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:21,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:21,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:21" (1/1) ... [2019-10-13 21:17:21,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:21" (1/1) ... [2019-10-13 21:17:21,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:21" (1/1) ... [2019-10-13 21:17:21,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:21" (1/1) ... [2019-10-13 21:17:21,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:21" (1/1) ... [2019-10-13 21:17:21,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:21" (1/1) ... [2019-10-13 21:17:21,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:21" (1/1) ... [2019-10-13 21:17:21,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:21,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:21,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:21,488 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:21,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:21" (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 21:17:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:21,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:21,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:21,585 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:21,585 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:21,586 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:21,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:21,587 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:21,591 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:21,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:21,591 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:21,594 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:21,595 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:21,595 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:21,595 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:21,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:21,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:21,608 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:21,609 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:21,609 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 21:17:21,609 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:21,609 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:21,610 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:21,610 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:17:21,610 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:17:21,610 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:21,611 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:21,612 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:21,612 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:21,612 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:21,613 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:21,613 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:21,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:21,614 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:21,614 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:17:21,614 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:17:21,615 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:17:21,615 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:17:21,615 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:21,616 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:21,617 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:21,618 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:21,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:21,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:21,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:21,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:21,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:21,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:21,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:21,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:21,620 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:21,620 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:21,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:21,621 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:21,621 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:21,621 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:21,622 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:21,622 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:21,622 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:21,622 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:21,623 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:17:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:17:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 21:17:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 21:17:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:21,626 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:21,626 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:17:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:17:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:21,646 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:21,646 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:21,646 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:21,647 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:21,647 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:21,647 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:21,648 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:21,648 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:21,648 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:21,648 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:21,648 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:21,649 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:21,649 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:21,649 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:21,650 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:21,650 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:21,650 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:21,650 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:21,651 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:21,651 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:21,651 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:21,651 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:21,652 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:21,652 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:21,652 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:21,652 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:21,653 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:21,653 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:21,653 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:21,654 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:21,654 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:21,654 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:21,654 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:21,655 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:21,655 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:21,655 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:21,655 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:21,656 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:21,656 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:21,656 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:21,656 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:21,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:21,657 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:21,657 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:21,657 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:21,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:21,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:21,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:21,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:21,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:21,658 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:21,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:21,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:21,659 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:21,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:21,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:21,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:21,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:21,660 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:21,662 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:21,662 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:21,662 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:21,662 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:21,662 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:21,663 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:21,663 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:21,663 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:21,663 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:21,663 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:21,664 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:21,664 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:17:21,664 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:17:21,664 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:17:21,665 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:17:21,665 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:21,665 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:21,665 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 21:17:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:17:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:17:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:21,667 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:21,667 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:21,667 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:21,667 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 21:17:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 21:17:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:24,416 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:24,417 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:24,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:24 BoogieIcfgContainer [2019-10-13 21:17:24,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:24,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:24,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:24,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:24,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:20" (1/3) ... [2019-10-13 21:17:24,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695adf9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:24, skipping insertion in model container [2019-10-13 21:17:24,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:21" (2/3) ... [2019-10-13 21:17:24,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695adf9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:24, skipping insertion in model container [2019-10-13 21:17:24,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:24" (3/3) ... [2019-10-13 21:17:24,436 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product32.cil.c [2019-10-13 21:17:24,448 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:24,460 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:24,471 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:24,519 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:24,519 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:24,519 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:24,523 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:24,524 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:24,524 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:24,525 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:24,525 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:24,569 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states. [2019-10-13 21:17:24,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:17:24,604 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:24,609 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] [2019-10-13 21:17:24,612 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:24,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:24,619 INFO L82 PathProgramCache]: Analyzing trace with hash -165883843, now seen corresponding path program 1 times [2019-10-13 21:17:24,629 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:24,629 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761585032] [2019-10-13 21:17:24,630 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:24,630 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:24,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:25,465 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 21:17:25,466 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761585032] [2019-10-13 21:17:25,467 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:25,467 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:17:25,467 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973231831] [2019-10-13 21:17:25,472 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:17:25,474 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:25,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:17:25,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:25,492 INFO L87 Difference]: Start difference. First operand 645 states. Second operand 2 states. [2019-10-13 21:17:25,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:25,589 INFO L93 Difference]: Finished difference Result 920 states and 1248 transitions. [2019-10-13 21:17:25,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:17:25,591 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 198 [2019-10-13 21:17:25,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:25,628 INFO L225 Difference]: With dead ends: 920 [2019-10-13 21:17:25,628 INFO L226 Difference]: Without dead ends: 588 [2019-10-13 21:17:25,640 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 21:17:25,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2019-10-13 21:17:25,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 588. [2019-10-13 21:17:25,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 588 states. [2019-10-13 21:17:25,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 802 transitions. [2019-10-13 21:17:25,778 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 802 transitions. Word has length 198 [2019-10-13 21:17:25,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:25,781 INFO L462 AbstractCegarLoop]: Abstraction has 588 states and 802 transitions. [2019-10-13 21:17:25,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:17:25,781 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 802 transitions. [2019-10-13 21:17:25,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-13 21:17:25,788 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:25,788 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] [2019-10-13 21:17:25,788 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:25,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:25,789 INFO L82 PathProgramCache]: Analyzing trace with hash -450437304, now seen corresponding path program 1 times [2019-10-13 21:17:25,789 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:25,789 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072118376] [2019-10-13 21:17:25,790 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:25,790 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:25,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:26,136 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 21:17:26,137 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072118376] [2019-10-13 21:17:26,137 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:26,138 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:26,138 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791199051] [2019-10-13 21:17:26,143 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:26,143 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:26,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:26,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:26,144 INFO L87 Difference]: Start difference. First operand 588 states and 802 transitions. Second operand 3 states. [2019-10-13 21:17:26,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:26,231 INFO L93 Difference]: Finished difference Result 903 states and 1212 transitions. [2019-10-13 21:17:26,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:26,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-13 21:17:26,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:26,240 INFO L225 Difference]: With dead ends: 903 [2019-10-13 21:17:26,240 INFO L226 Difference]: Without dead ends: 591 [2019-10-13 21:17:26,242 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 21:17:26,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2019-10-13 21:17:26,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 590. [2019-10-13 21:17:26,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2019-10-13 21:17:26,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 804 transitions. [2019-10-13 21:17:26,282 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 804 transitions. Word has length 199 [2019-10-13 21:17:26,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:26,283 INFO L462 AbstractCegarLoop]: Abstraction has 590 states and 804 transitions. [2019-10-13 21:17:26,283 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:26,283 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 804 transitions. [2019-10-13 21:17:26,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-13 21:17:26,287 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:26,288 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 21:17:26,288 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:26,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:26,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1838348472, now seen corresponding path program 1 times [2019-10-13 21:17:26,289 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:26,289 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633924951] [2019-10-13 21:17:26,289 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:26,289 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:26,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:26,508 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 21:17:26,508 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633924951] [2019-10-13 21:17:26,509 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:26,509 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:26,509 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013547116] [2019-10-13 21:17:26,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:26,510 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:26,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:26,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:26,511 INFO L87 Difference]: Start difference. First operand 590 states and 804 transitions. Second operand 3 states. [2019-10-13 21:17:26,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:26,635 INFO L93 Difference]: Finished difference Result 1158 states and 1609 transitions. [2019-10-13 21:17:26,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:26,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 209 [2019-10-13 21:17:26,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:26,640 INFO L225 Difference]: With dead ends: 1158 [2019-10-13 21:17:26,640 INFO L226 Difference]: Without dead ends: 633 [2019-10-13 21:17:26,642 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 21:17:26,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2019-10-13 21:17:26,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 632. [2019-10-13 21:17:26,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2019-10-13 21:17:26,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 876 transitions. [2019-10-13 21:17:26,669 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 876 transitions. Word has length 209 [2019-10-13 21:17:26,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:26,670 INFO L462 AbstractCegarLoop]: Abstraction has 632 states and 876 transitions. [2019-10-13 21:17:26,670 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:26,670 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 876 transitions. [2019-10-13 21:17:26,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-13 21:17:26,677 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:26,677 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 21:17:26,678 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:26,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:26,678 INFO L82 PathProgramCache]: Analyzing trace with hash -62389329, now seen corresponding path program 1 times [2019-10-13 21:17:26,678 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:26,679 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25504726] [2019-10-13 21:17:26,679 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:26,679 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:26,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:26,831 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 21:17:26,831 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25504726] [2019-10-13 21:17:26,831 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:26,831 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:26,832 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314430116] [2019-10-13 21:17:26,832 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:26,833 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:26,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:26,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:26,833 INFO L87 Difference]: Start difference. First operand 632 states and 876 transitions. Second operand 3 states. [2019-10-13 21:17:26,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:26,868 INFO L93 Difference]: Finished difference Result 1281 states and 1820 transitions. [2019-10-13 21:17:26,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:26,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2019-10-13 21:17:26,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:26,873 INFO L225 Difference]: With dead ends: 1281 [2019-10-13 21:17:26,874 INFO L226 Difference]: Without dead ends: 714 [2019-10-13 21:17:26,876 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 21:17:26,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2019-10-13 21:17:26,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 713. [2019-10-13 21:17:26,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2019-10-13 21:17:26,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1014 transitions. [2019-10-13 21:17:26,905 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1014 transitions. Word has length 210 [2019-10-13 21:17:26,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:26,906 INFO L462 AbstractCegarLoop]: Abstraction has 713 states and 1014 transitions. [2019-10-13 21:17:26,906 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:26,906 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1014 transitions. [2019-10-13 21:17:26,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-13 21:17:26,911 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:26,911 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, 1] [2019-10-13 21:17:26,911 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:26,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:26,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1544795448, now seen corresponding path program 1 times [2019-10-13 21:17:26,912 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:26,912 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774664414] [2019-10-13 21:17:26,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:26,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:26,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:27,134 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 21:17:27,135 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774664414] [2019-10-13 21:17:27,135 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:27,135 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:27,136 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444576436] [2019-10-13 21:17:27,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:27,136 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:27,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:27,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:27,137 INFO L87 Difference]: Start difference. First operand 713 states and 1014 transitions. Second operand 3 states. [2019-10-13 21:17:27,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:27,179 INFO L93 Difference]: Finished difference Result 1518 states and 2224 transitions. [2019-10-13 21:17:27,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:27,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2019-10-13 21:17:27,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:27,188 INFO L225 Difference]: With dead ends: 1518 [2019-10-13 21:17:27,188 INFO L226 Difference]: Without dead ends: 870 [2019-10-13 21:17:27,191 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 21:17:27,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2019-10-13 21:17:27,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 869. [2019-10-13 21:17:27,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2019-10-13 21:17:27,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1278 transitions. [2019-10-13 21:17:27,250 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1278 transitions. Word has length 211 [2019-10-13 21:17:27,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:27,251 INFO L462 AbstractCegarLoop]: Abstraction has 869 states and 1278 transitions. [2019-10-13 21:17:27,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:27,251 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1278 transitions. [2019-10-13 21:17:27,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-13 21:17:27,256 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:27,257 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, 1, 1] [2019-10-13 21:17:27,257 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:27,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:27,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1683184849, now seen corresponding path program 1 times [2019-10-13 21:17:27,259 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:27,260 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335376263] [2019-10-13 21:17:27,260 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:27,260 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:27,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:27,487 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 21:17:27,488 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335376263] [2019-10-13 21:17:27,489 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:27,489 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:27,489 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598043542] [2019-10-13 21:17:27,490 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:27,490 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:27,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:27,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:27,491 INFO L87 Difference]: Start difference. First operand 869 states and 1278 transitions. Second operand 3 states. [2019-10-13 21:17:27,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:27,543 INFO L93 Difference]: Finished difference Result 1974 states and 2996 transitions. [2019-10-13 21:17:27,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:27,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2019-10-13 21:17:27,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:27,551 INFO L225 Difference]: With dead ends: 1974 [2019-10-13 21:17:27,552 INFO L226 Difference]: Without dead ends: 1170 [2019-10-13 21:17:27,558 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 21:17:27,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2019-10-13 21:17:27,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1169. [2019-10-13 21:17:27,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1169 states. [2019-10-13 21:17:27,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1782 transitions. [2019-10-13 21:17:27,609 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1782 transitions. Word has length 212 [2019-10-13 21:17:27,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:27,611 INFO L462 AbstractCegarLoop]: Abstraction has 1169 states and 1782 transitions. [2019-10-13 21:17:27,611 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:27,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1782 transitions. [2019-10-13 21:17:27,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2019-10-13 21:17:27,621 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:27,622 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, 1, 1, 1, 1, 1] [2019-10-13 21:17:27,623 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:27,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:27,623 INFO L82 PathProgramCache]: Analyzing trace with hash 851882438, now seen corresponding path program 1 times [2019-10-13 21:17:27,623 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:27,624 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893037700] [2019-10-13 21:17:27,624 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:27,624 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:27,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:28,058 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 21:17:28,059 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893037700] [2019-10-13 21:17:28,059 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:28,059 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:28,059 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991587671] [2019-10-13 21:17:28,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:28,061 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:28,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:28,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:28,061 INFO L87 Difference]: Start difference. First operand 1169 states and 1782 transitions. Second operand 11 states. [2019-10-13 21:17:34,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:34,031 INFO L93 Difference]: Finished difference Result 3807 states and 5570 transitions. [2019-10-13 21:17:34,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 21:17:34,032 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 215 [2019-10-13 21:17:34,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:34,055 INFO L225 Difference]: With dead ends: 3807 [2019-10-13 21:17:34,055 INFO L226 Difference]: Without dead ends: 3508 [2019-10-13 21:17:34,059 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-10-13 21:17:34,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3508 states. [2019-10-13 21:17:34,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3508 to 3487. [2019-10-13 21:17:34,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3487 states. [2019-10-13 21:17:34,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3487 states to 3487 states and 5006 transitions. [2019-10-13 21:17:34,235 INFO L78 Accepts]: Start accepts. Automaton has 3487 states and 5006 transitions. Word has length 215 [2019-10-13 21:17:34,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:34,236 INFO L462 AbstractCegarLoop]: Abstraction has 3487 states and 5006 transitions. [2019-10-13 21:17:34,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:34,236 INFO L276 IsEmpty]: Start isEmpty. Operand 3487 states and 5006 transitions. [2019-10-13 21:17:34,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-13 21:17:34,243 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:34,244 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, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:34,244 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:34,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:34,245 INFO L82 PathProgramCache]: Analyzing trace with hash -766411813, now seen corresponding path program 1 times [2019-10-13 21:17:34,245 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:34,245 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328210917] [2019-10-13 21:17:34,246 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:34,246 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:34,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:34,599 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 21:17:34,599 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328210917] [2019-10-13 21:17:34,599 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:34,600 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-10-13 21:17:34,600 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107680263] [2019-10-13 21:17:34,600 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-13 21:17:34,600 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:34,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-13 21:17:34,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-10-13 21:17:34,601 INFO L87 Difference]: Start difference. First operand 3487 states and 5006 transitions. Second operand 20 states. [2019-10-13 21:17:35,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:35,346 INFO L93 Difference]: Finished difference Result 6068 states and 8719 transitions. [2019-10-13 21:17:35,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-13 21:17:35,347 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 216 [2019-10-13 21:17:35,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:35,375 INFO L225 Difference]: With dead ends: 6068 [2019-10-13 21:17:35,376 INFO L226 Difference]: Without dead ends: 3433 [2019-10-13 21:17:35,389 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-13 21:17:35,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3433 states. [2019-10-13 21:17:35,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3433 to 3431. [2019-10-13 21:17:35,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3431 states. [2019-10-13 21:17:35,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3431 states to 3431 states and 4920 transitions. [2019-10-13 21:17:35,528 INFO L78 Accepts]: Start accepts. Automaton has 3431 states and 4920 transitions. Word has length 216 [2019-10-13 21:17:35,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:35,529 INFO L462 AbstractCegarLoop]: Abstraction has 3431 states and 4920 transitions. [2019-10-13 21:17:35,529 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-13 21:17:35,529 INFO L276 IsEmpty]: Start isEmpty. Operand 3431 states and 4920 transitions. [2019-10-13 21:17:35,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-13 21:17:35,536 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:35,537 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:35,537 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:35,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:35,537 INFO L82 PathProgramCache]: Analyzing trace with hash -840508066, now seen corresponding path program 1 times [2019-10-13 21:17:35,537 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:35,538 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548818431] [2019-10-13 21:17:35,538 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:35,538 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:35,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:35,760 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 21:17:35,760 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548818431] [2019-10-13 21:17:35,761 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:35,761 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:17:35,761 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498896651] [2019-10-13 21:17:35,762 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:17:35,762 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:35,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:17:35,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:17:35,763 INFO L87 Difference]: Start difference. First operand 3431 states and 4920 transitions. Second operand 6 states. [2019-10-13 21:17:36,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:36,580 INFO L93 Difference]: Finished difference Result 9461 states and 13678 transitions. [2019-10-13 21:17:36,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:17:36,581 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2019-10-13 21:17:36,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:36,638 INFO L225 Difference]: With dead ends: 9461 [2019-10-13 21:17:36,638 INFO L226 Difference]: Without dead ends: 6949 [2019-10-13 21:17:36,656 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:17:36,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6949 states. [2019-10-13 21:17:37,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6949 to 6878. [2019-10-13 21:17:37,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6878 states. [2019-10-13 21:17:37,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6878 states to 6878 states and 10018 transitions. [2019-10-13 21:17:37,034 INFO L78 Accepts]: Start accepts. Automaton has 6878 states and 10018 transitions. Word has length 225 [2019-10-13 21:17:37,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:37,035 INFO L462 AbstractCegarLoop]: Abstraction has 6878 states and 10018 transitions. [2019-10-13 21:17:37,035 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:17:37,035 INFO L276 IsEmpty]: Start isEmpty. Operand 6878 states and 10018 transitions. [2019-10-13 21:17:37,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-13 21:17:37,048 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:37,048 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:37,048 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:37,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:37,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1633314013, now seen corresponding path program 1 times [2019-10-13 21:17:37,049 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:37,049 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404907051] [2019-10-13 21:17:37,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:37,050 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:37,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:37,232 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 21:17:37,233 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404907051] [2019-10-13 21:17:37,233 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:37,233 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:17:37,233 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049170299] [2019-10-13 21:17:37,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:17:37,234 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:37,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:17:37,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:17:37,235 INFO L87 Difference]: Start difference. First operand 6878 states and 10018 transitions. Second operand 5 states. [2019-10-13 21:17:38,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:38,882 INFO L93 Difference]: Finished difference Result 24031 states and 35587 transitions. [2019-10-13 21:17:38,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:17:38,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 226 [2019-10-13 21:17:38,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:39,007 INFO L225 Difference]: With dead ends: 24031 [2019-10-13 21:17:39,007 INFO L226 Difference]: Without dead ends: 18924 [2019-10-13 21:17:39,041 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 21:17:39,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18924 states. [2019-10-13 21:17:39,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18924 to 18828. [2019-10-13 21:17:39,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18828 states. [2019-10-13 21:17:39,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18828 states to 18828 states and 27803 transitions. [2019-10-13 21:17:39,869 INFO L78 Accepts]: Start accepts. Automaton has 18828 states and 27803 transitions. Word has length 226 [2019-10-13 21:17:39,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:39,871 INFO L462 AbstractCegarLoop]: Abstraction has 18828 states and 27803 transitions. [2019-10-13 21:17:39,871 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:17:39,871 INFO L276 IsEmpty]: Start isEmpty. Operand 18828 states and 27803 transitions. [2019-10-13 21:17:39,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-13 21:17:39,896 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:39,897 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:39,897 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:39,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:39,897 INFO L82 PathProgramCache]: Analyzing trace with hash 2074877164, now seen corresponding path program 1 times [2019-10-13 21:17:39,898 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:39,898 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487324210] [2019-10-13 21:17:39,898 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:39,898 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:39,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:40,899 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 21:17:40,900 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487324210] [2019-10-13 21:17:40,900 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:40,900 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 21:17:40,900 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473914907] [2019-10-13 21:17:40,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 21:17:40,901 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:40,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 21:17:40,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:17:40,902 INFO L87 Difference]: Start difference. First operand 18828 states and 27803 transitions. Second operand 13 states. [2019-10-13 21:17:41,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:41,841 INFO L93 Difference]: Finished difference Result 34083 states and 49544 transitions. [2019-10-13 21:17:41,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:17:41,841 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 226 [2019-10-13 21:17:41,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:41,933 INFO L225 Difference]: With dead ends: 34083 [2019-10-13 21:17:41,934 INFO L226 Difference]: Without dead ends: 18752 [2019-10-13 21:17:42,004 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-13 21:17:42,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18752 states. [2019-10-13 21:17:42,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18752 to 18700. [2019-10-13 21:17:42,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18700 states. [2019-10-13 21:17:42,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18700 states to 18700 states and 27412 transitions. [2019-10-13 21:17:42,825 INFO L78 Accepts]: Start accepts. Automaton has 18700 states and 27412 transitions. Word has length 226 [2019-10-13 21:17:42,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:42,825 INFO L462 AbstractCegarLoop]: Abstraction has 18700 states and 27412 transitions. [2019-10-13 21:17:42,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 21:17:42,826 INFO L276 IsEmpty]: Start isEmpty. Operand 18700 states and 27412 transitions. [2019-10-13 21:17:42,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-10-13 21:17:42,851 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:42,852 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:42,852 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:42,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:42,852 INFO L82 PathProgramCache]: Analyzing trace with hash -864211826, now seen corresponding path program 1 times [2019-10-13 21:17:42,853 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:42,853 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293612010] [2019-10-13 21:17:42,853 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:42,853 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:42,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:43,098 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-13 21:17:43,099 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293612010] [2019-10-13 21:17:43,100 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:43,100 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:43,100 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696217611] [2019-10-13 21:17:43,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:43,102 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:43,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:43,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:43,103 INFO L87 Difference]: Start difference. First operand 18700 states and 27412 transitions. Second operand 8 states. [2019-10-13 21:17:48,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:48,765 INFO L93 Difference]: Finished difference Result 56466 states and 85234 transitions. [2019-10-13 21:17:48,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 21:17:48,766 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 263 [2019-10-13 21:17:48,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:48,954 INFO L225 Difference]: With dead ends: 56466 [2019-10-13 21:17:48,954 INFO L226 Difference]: Without dead ends: 37831 [2019-10-13 21:17:49,011 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-13 21:17:49,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37831 states. [2019-10-13 21:17:50,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37831 to 22284. [2019-10-13 21:17:50,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22284 states. [2019-10-13 21:17:50,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22284 states to 22284 states and 34800 transitions. [2019-10-13 21:17:50,312 INFO L78 Accepts]: Start accepts. Automaton has 22284 states and 34800 transitions. Word has length 263 [2019-10-13 21:17:50,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:50,313 INFO L462 AbstractCegarLoop]: Abstraction has 22284 states and 34800 transitions. [2019-10-13 21:17:50,313 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:17:50,313 INFO L276 IsEmpty]: Start isEmpty. Operand 22284 states and 34800 transitions. [2019-10-13 21:17:50,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2019-10-13 21:17:50,396 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:50,396 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:50,397 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:50,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:50,397 INFO L82 PathProgramCache]: Analyzing trace with hash -513023094, now seen corresponding path program 1 times [2019-10-13 21:17:50,397 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:50,398 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062039246] [2019-10-13 21:17:50,398 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:50,398 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:50,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:50,619 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-13 21:17:50,620 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062039246] [2019-10-13 21:17:50,620 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:50,620 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:50,621 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267114186] [2019-10-13 21:17:50,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:50,622 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:50,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:50,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:50,623 INFO L87 Difference]: Start difference. First operand 22284 states and 34800 transitions. Second operand 8 states.