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_spec0_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:11:49,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:11:49,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:11:49,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:11:49,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:11:49,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:11:49,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:11:49,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:11:49,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:11:49,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:11:49,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:11:49,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:11:49,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:11:49,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:11:49,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:11:49,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:11:49,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:11:49,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:11:49,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:11:49,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:11:49,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:11:49,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:11:49,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:11:49,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:11:49,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:11:49,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:11:49,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:11:49,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:11:49,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:11:49,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:11:49,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:11:49,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:11:49,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:11:49,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:11:49,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:11:49,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:11:49,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:11:49,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:11:49,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:11:49,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:11:49,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:11:49,594 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 [2019-10-15 01:11:49,608 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:11:49,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:11:49,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:11:49,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:11:49,610 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:11:49,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:11:49,610 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:11:49,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:11:49,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:11:49,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:11:49,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:11:49,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:11:49,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:11:49,612 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:11:49,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:11:49,612 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:11:49,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:11:49,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:11:49,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:11:49,613 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:11:49,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:11:49,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:11:49,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:11:49,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:11:49,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:11:49,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:11:49,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:11:49,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:11:49,615 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 [2019-10-15 01:11:49,961 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:11:49,975 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:11:49,981 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:11:49,982 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:11:49,983 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:11:49,983 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product21.cil.c [2019-10-15 01:11:50,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c4c5a886/120c35be50fe4500a28fd018a0b39a89/FLAG66827d006 [2019-10-15 01:11:50,626 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:11:50,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product21.cil.c [2019-10-15 01:11:50,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c4c5a886/120c35be50fe4500a28fd018a0b39a89/FLAG66827d006 [2019-10-15 01:11:50,883 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c4c5a886/120c35be50fe4500a28fd018a0b39a89 [2019-10-15 01:11:50,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:11:50,895 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:11:50,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:11:50,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:11:50,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:11:50,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:11:50" (1/1) ... [2019-10-15 01:11:50,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21180631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:50, skipping insertion in model container [2019-10-15 01:11:50,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:11:50" (1/1) ... [2019-10-15 01:11:50,915 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:11:50,994 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:11:51,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:11:51,769 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:11:51,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:11:52,012 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:11:52,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52 WrapperNode [2019-10-15 01:11:52,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:11:52,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:11:52,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:11:52,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:11:52,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (1/1) ... [2019-10-15 01:11:52,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (1/1) ... [2019-10-15 01:11:52,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (1/1) ... [2019-10-15 01:11:52,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (1/1) ... [2019-10-15 01:11:52,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (1/1) ... [2019-10-15 01:11:52,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (1/1) ... [2019-10-15 01:11:52,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (1/1) ... [2019-10-15 01:11:52,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:11:52,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:11:52,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:11:52,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:11:52,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (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 [2019-10-15 01:11:52,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:11:52,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:11:52,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:11:52,291 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:11:52,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:11:52,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:11:52,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:11:52,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:11:52,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:11:52,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:11:52,293 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:11:52,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:11:52,294 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:11:52,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:11:52,294 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:11:52,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:11:52,294 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:11:52,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:11:52,295 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:11:52,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:11:52,295 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:11:52,296 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:11:52,296 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:11:52,296 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:11:52,296 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:11:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:11:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:11:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:11:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:11:52,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:11:52,298 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:11:52,298 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:11:52,298 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:11:52,298 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:11:52,298 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:11:52,299 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:11:52,299 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:11:52,299 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:11:52,299 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:11:52,299 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:11:52,299 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:11:52,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:11:52,300 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:11:52,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:11:52,300 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:11:52,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:11:52,301 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:11:52,301 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:11:52,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:11:52,301 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:11:52,301 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:11:52,301 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:11:52,302 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:11:52,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:11:52,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:11:52,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:11:52,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:11:52,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:11:52,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:11:52,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:11:52,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:11:52,303 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:11:52,303 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:11:52,304 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:11:52,304 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:11:52,304 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:11:52,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 01:11:52,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:11:52,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:11:52,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:11:52,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:11:52,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:11:52,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:11:52,305 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:11:52,305 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:11:52,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:11:52,306 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:11:52,306 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:11:52,306 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:11:52,306 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:11:52,306 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:11:52,306 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:11:52,307 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:11:52,307 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:11:52,307 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:11:52,307 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:11:52,307 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:11:52,307 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:11:52,308 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:11:52,308 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:11:52,308 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:11:52,308 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:11:52,308 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:11:52,308 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 01:11:52,308 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:11:52,309 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:11:52,309 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:11:52,309 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:11:52,309 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:11:52,309 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:11:52,309 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:11:52,309 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:11:52,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:11:52,310 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:11:52,310 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:11:52,310 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:11:52,310 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:11:52,310 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:11:52,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:11:52,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:11:52,311 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:11:52,311 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:11:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:11:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:11:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:11:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:11:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:11:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:11:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:11:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:11:52,312 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:11:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:11:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:11:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:11:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:11:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:11:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:11:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:11:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:11:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:11:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:11:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:11:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:11:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:11:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:11:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:11:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:11:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:11:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:11:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:11:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:11:52,316 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:11:52,316 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:11:52,316 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:11:52,316 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:11:52,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:11:52,316 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:11:52,316 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:11:52,317 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:11:52,317 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:11:52,317 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:11:52,317 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:11:52,317 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:11:52,317 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:11:52,318 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:11:52,318 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:11:52,318 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:11:52,318 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:11:52,318 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:11:52,318 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:11:52,318 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:11:52,319 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:11:52,319 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:11:52,319 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:11:52,319 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:11:52,319 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:11:52,319 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:11:52,319 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:11:52,320 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:11:52,320 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:11:52,320 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:11:52,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:11:52,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:11:52,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:11:52,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:11:52,321 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:11:52,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:11:52,321 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:11:52,321 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:11:52,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:11:52,321 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:11:52,321 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:11:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:11:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:11:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:11:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:11:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:11:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:11:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:11:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:11:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:11:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:11:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:11:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:11:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:11:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:11:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:11:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:11:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:11:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:11:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:11:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 01:11:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:11:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:11:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:11:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:11:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:11:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:11:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:11:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:11:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:11:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:11:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:11:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:11:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:11:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:11:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:11:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:11:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:11:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:11:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:11:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:11:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:11:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:11:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:11:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:11:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:11:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:11:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:11:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:11:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:11:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 01:11:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:11:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:11:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:11:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:11:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:11:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:11:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:11:54,363 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:11:54,364 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:11:54,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:11:54 BoogieIcfgContainer [2019-10-15 01:11:54,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:11:54,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:11:54,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:11:54,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:11:54,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:11:50" (1/3) ... [2019-10-15 01:11:54,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efb7ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:11:54, skipping insertion in model container [2019-10-15 01:11:54,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:52" (2/3) ... [2019-10-15 01:11:54,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efb7ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:11:54, skipping insertion in model container [2019-10-15 01:11:54,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:11:54" (3/3) ... [2019-10-15 01:11:54,377 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product21.cil.c [2019-10-15 01:11:54,386 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:11:54,397 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:11:54,408 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:11:54,445 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:11:54,445 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:11:54,445 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:11:54,445 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:11:54,445 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:11:54,445 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:11:54,446 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:11:54,446 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:11:54,485 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states. [2019-10-15 01:11:54,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 01:11:54,531 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:11:54,532 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] [2019-10-15 01:11:54,539 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:11:54,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:11:54,546 INFO L82 PathProgramCache]: Analyzing trace with hash -2004789445, now seen corresponding path program 1 times [2019-10-15 01:11:54,555 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:11:54,556 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939095908] [2019-10-15 01:11:54,565 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:54,565 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:54,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:11:54,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:11:55,291 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:11:55,292 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939095908] [2019-10-15 01:11:55,293 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:11:55,294 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:11:55,294 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677380963] [2019-10-15 01:11:55,300 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:11:55,302 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:11:55,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:11:55,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:11:55,319 INFO L87 Difference]: Start difference. First operand 566 states. Second operand 2 states. [2019-10-15 01:11:55,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:11:55,425 INFO L93 Difference]: Finished difference Result 818 states and 1111 transitions. [2019-10-15 01:11:55,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:11:55,427 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 198 [2019-10-15 01:11:55,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:11:55,454 INFO L225 Difference]: With dead ends: 818 [2019-10-15 01:11:55,455 INFO L226 Difference]: Without dead ends: 537 [2019-10-15 01:11:55,466 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 [2019-10-15 01:11:55,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-10-15 01:11:55,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-10-15 01:11:55,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-10-15 01:11:55,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 733 transitions. [2019-10-15 01:11:55,588 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 733 transitions. Word has length 198 [2019-10-15 01:11:55,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:11:55,590 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 733 transitions. [2019-10-15 01:11:55,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:11:55,590 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 733 transitions. [2019-10-15 01:11:55,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-15 01:11:55,596 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:11:55,597 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] [2019-10-15 01:11:55,597 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:11:55,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:11:55,598 INFO L82 PathProgramCache]: Analyzing trace with hash -24862393, now seen corresponding path program 1 times [2019-10-15 01:11:55,598 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:11:55,598 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882601752] [2019-10-15 01:11:55,598 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:55,599 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:55,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:11:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:11:55,789 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:11:55,789 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882601752] [2019-10-15 01:11:55,790 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:11:55,790 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:11:55,790 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969603453] [2019-10-15 01:11:55,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:11:55,793 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:11:55,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:11:55,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:11:55,794 INFO L87 Difference]: Start difference. First operand 537 states and 733 transitions. Second operand 3 states. [2019-10-15 01:11:55,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:11:55,849 INFO L93 Difference]: Finished difference Result 801 states and 1074 transitions. [2019-10-15 01:11:55,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:11:55,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-15 01:11:55,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:11:55,860 INFO L225 Difference]: With dead ends: 801 [2019-10-15 01:11:55,860 INFO L226 Difference]: Without dead ends: 540 [2019-10-15 01:11:55,864 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 [2019-10-15 01:11:55,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2019-10-15 01:11:55,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 539. [2019-10-15 01:11:55,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-10-15 01:11:55,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 735 transitions. [2019-10-15 01:11:55,915 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 735 transitions. Word has length 199 [2019-10-15 01:11:55,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:11:55,918 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 735 transitions. [2019-10-15 01:11:55,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:11:55,918 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 735 transitions. [2019-10-15 01:11:55,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-15 01:11:55,925 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:11:55,925 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:11:55,926 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:11:55,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:11:55,926 INFO L82 PathProgramCache]: Analyzing trace with hash 712401851, now seen corresponding path program 1 times [2019-10-15 01:11:55,927 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:11:55,927 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406794624] [2019-10-15 01:11:55,927 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:55,927 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:55,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:11:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:11:56,138 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:11:56,138 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406794624] [2019-10-15 01:11:56,139 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:11:56,139 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:11:56,139 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053758229] [2019-10-15 01:11:56,141 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:11:56,142 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:11:56,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:11:56,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:11:56,143 INFO L87 Difference]: Start difference. First operand 539 states and 735 transitions. Second operand 3 states. [2019-10-15 01:11:56,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:11:56,187 INFO L93 Difference]: Finished difference Result 1056 states and 1471 transitions. [2019-10-15 01:11:56,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:11:56,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-10-15 01:11:56,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:11:56,191 INFO L225 Difference]: With dead ends: 1056 [2019-10-15 01:11:56,192 INFO L226 Difference]: Without dead ends: 582 [2019-10-15 01:11:56,194 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 [2019-10-15 01:11:56,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2019-10-15 01:11:56,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 581. [2019-10-15 01:11:56,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2019-10-15 01:11:56,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 807 transitions. [2019-10-15 01:11:56,219 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 807 transitions. Word has length 205 [2019-10-15 01:11:56,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:11:56,219 INFO L462 AbstractCegarLoop]: Abstraction has 581 states and 807 transitions. [2019-10-15 01:11:56,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:11:56,220 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 807 transitions. [2019-10-15 01:11:56,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-15 01:11:56,224 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:11:56,225 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:11:56,225 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:11:56,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:11:56,225 INFO L82 PathProgramCache]: Analyzing trace with hash -2088954863, now seen corresponding path program 1 times [2019-10-15 01:11:56,226 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:11:56,226 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656464656] [2019-10-15 01:11:56,226 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:56,226 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:56,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:11:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:11:56,772 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:11:56,773 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656464656] [2019-10-15 01:11:56,773 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:11:56,774 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:11:56,774 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880878058] [2019-10-15 01:11:56,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:11:56,776 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:11:56,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:11:56,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:11:56,779 INFO L87 Difference]: Start difference. First operand 581 states and 807 transitions. Second operand 19 states. [2019-10-15 01:12:01,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:01,474 INFO L93 Difference]: Finished difference Result 1939 states and 2714 transitions. [2019-10-15 01:12:01,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-15 01:12:01,474 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 206 [2019-10-15 01:12:01,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:01,489 INFO L225 Difference]: With dead ends: 1939 [2019-10-15 01:12:01,490 INFO L226 Difference]: Without dead ends: 1691 [2019-10-15 01:12:01,493 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:12:01,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2019-10-15 01:12:01,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1654. [2019-10-15 01:12:01,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2019-10-15 01:12:01,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2323 transitions. [2019-10-15 01:12:01,612 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2323 transitions. Word has length 206 [2019-10-15 01:12:01,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:01,612 INFO L462 AbstractCegarLoop]: Abstraction has 1654 states and 2323 transitions. [2019-10-15 01:12:01,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:12:01,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2323 transitions. [2019-10-15 01:12:01,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-15 01:12:01,622 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:01,622 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:01,622 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:01,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:01,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1909535068, now seen corresponding path program 1 times [2019-10-15 01:12:01,623 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:01,624 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32914799] [2019-10-15 01:12:01,624 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:01,625 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:01,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:02,015 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 01:12:02,016 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32914799] [2019-10-15 01:12:02,016 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:02,017 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-15 01:12:02,017 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288309894] [2019-10-15 01:12:02,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:12:02,019 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:02,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:12:02,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:12:02,021 INFO L87 Difference]: Start difference. First operand 1654 states and 2323 transitions. Second operand 16 states. [2019-10-15 01:12:02,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:02,483 INFO L93 Difference]: Finished difference Result 2875 states and 4040 transitions. [2019-10-15 01:12:02,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 01:12:02,483 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 207 [2019-10-15 01:12:02,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:02,496 INFO L225 Difference]: With dead ends: 2875 [2019-10-15 01:12:02,496 INFO L226 Difference]: Without dead ends: 1824 [2019-10-15 01:12:02,503 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:12:02,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2019-10-15 01:12:02,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1824. [2019-10-15 01:12:02,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1824 states. [2019-10-15 01:12:02,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2576 transitions. [2019-10-15 01:12:02,636 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2576 transitions. Word has length 207 [2019-10-15 01:12:02,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:02,638 INFO L462 AbstractCegarLoop]: Abstraction has 1824 states and 2576 transitions. [2019-10-15 01:12:02,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:12:02,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2576 transitions. [2019-10-15 01:12:02,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-15 01:12:02,645 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:02,646 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] [2019-10-15 01:12:02,646 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:02,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:02,646 INFO L82 PathProgramCache]: Analyzing trace with hash 392350703, now seen corresponding path program 1 times [2019-10-15 01:12:02,647 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:02,647 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588704222] [2019-10-15 01:12:02,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:02,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:02,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:03,072 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:03,072 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588704222] [2019-10-15 01:12:03,073 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:03,074 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:12:03,074 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365149969] [2019-10-15 01:12:03,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:12:03,075 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:03,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:12:03,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:12:03,076 INFO L87 Difference]: Start difference. First operand 1824 states and 2576 transitions. Second operand 15 states. [2019-10-15 01:12:06,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:06,693 INFO L93 Difference]: Finished difference Result 3085 states and 4346 transitions. [2019-10-15 01:12:06,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-15 01:12:06,693 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 207 [2019-10-15 01:12:06,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:06,705 INFO L225 Difference]: With dead ends: 3085 [2019-10-15 01:12:06,705 INFO L226 Difference]: Without dead ends: 1924 [2019-10-15 01:12:06,710 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 01:12:06,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2019-10-15 01:12:06,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1894. [2019-10-15 01:12:06,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1894 states. [2019-10-15 01:12:06,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 2689 transitions. [2019-10-15 01:12:06,795 INFO L78 Accepts]: Start accepts. Automaton has 1894 states and 2689 transitions. Word has length 207 [2019-10-15 01:12:06,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:06,796 INFO L462 AbstractCegarLoop]: Abstraction has 1894 states and 2689 transitions. [2019-10-15 01:12:06,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:12:06,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1894 states and 2689 transitions. [2019-10-15 01:12:06,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-15 01:12:06,803 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:06,803 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] [2019-10-15 01:12:06,804 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:06,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:06,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1263804375, now seen corresponding path program 1 times [2019-10-15 01:12:06,804 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:06,805 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111443891] [2019-10-15 01:12:06,805 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:06,805 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:06,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:06,962 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:06,963 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111443891] [2019-10-15 01:12:06,963 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:06,963 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:12:06,963 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613394463] [2019-10-15 01:12:06,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:12:06,964 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:06,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:12:06,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:12:06,965 INFO L87 Difference]: Start difference. First operand 1894 states and 2689 transitions. Second operand 5 states. [2019-10-15 01:12:07,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:07,926 INFO L93 Difference]: Finished difference Result 4686 states and 6611 transitions. [2019-10-15 01:12:07,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:12:07,926 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 207 [2019-10-15 01:12:07,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:07,961 INFO L225 Difference]: With dead ends: 4686 [2019-10-15 01:12:07,961 INFO L226 Difference]: Without dead ends: 4065 [2019-10-15 01:12:07,968 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 [2019-10-15 01:12:07,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4065 states. [2019-10-15 01:12:08,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4065 to 4047. [2019-10-15 01:12:08,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4047 states. [2019-10-15 01:12:08,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4047 states to 4047 states and 5732 transitions. [2019-10-15 01:12:08,250 INFO L78 Accepts]: Start accepts. Automaton has 4047 states and 5732 transitions. Word has length 207 [2019-10-15 01:12:08,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:08,251 INFO L462 AbstractCegarLoop]: Abstraction has 4047 states and 5732 transitions. [2019-10-15 01:12:08,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:12:08,252 INFO L276 IsEmpty]: Start isEmpty. Operand 4047 states and 5732 transitions. [2019-10-15 01:12:08,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-15 01:12:08,269 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:08,269 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] [2019-10-15 01:12:08,270 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:08,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:08,270 INFO L82 PathProgramCache]: Analyzing trace with hash -154989176, now seen corresponding path program 1 times [2019-10-15 01:12:08,271 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:08,271 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917458423] [2019-10-15 01:12:08,271 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:08,272 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:08,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:08,575 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:08,575 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917458423] [2019-10-15 01:12:08,576 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:08,576 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:12:08,576 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674912407] [2019-10-15 01:12:08,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:12:08,578 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:08,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:12:08,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:08,579 INFO L87 Difference]: Start difference. First operand 4047 states and 5732 transitions. Second operand 6 states. [2019-10-15 01:12:09,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:09,254 INFO L93 Difference]: Finished difference Result 11214 states and 15982 transitions. [2019-10-15 01:12:09,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:12:09,255 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 207 [2019-10-15 01:12:09,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:09,306 INFO L225 Difference]: With dead ends: 11214 [2019-10-15 01:12:09,306 INFO L226 Difference]: Without dead ends: 8129 [2019-10-15 01:12:09,322 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 [2019-10-15 01:12:09,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8129 states. [2019-10-15 01:12:09,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8129 to 8086. [2019-10-15 01:12:09,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8086 states. [2019-10-15 01:12:09,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8086 states to 8086 states and 11458 transitions. [2019-10-15 01:12:09,785 INFO L78 Accepts]: Start accepts. Automaton has 8086 states and 11458 transitions. Word has length 207 [2019-10-15 01:12:09,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:09,786 INFO L462 AbstractCegarLoop]: Abstraction has 8086 states and 11458 transitions. [2019-10-15 01:12:09,786 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:12:09,786 INFO L276 IsEmpty]: Start isEmpty. Operand 8086 states and 11458 transitions. [2019-10-15 01:12:09,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-15 01:12:09,803 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:09,804 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:09,804 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:09,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:09,805 INFO L82 PathProgramCache]: Analyzing trace with hash 927792726, now seen corresponding path program 1 times [2019-10-15 01:12:09,805 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:09,805 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649343088] [2019-10-15 01:12:09,805 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:09,805 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:09,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:10,010 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:10,010 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649343088] [2019-10-15 01:12:10,012 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:10,013 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:12:10,013 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872625339] [2019-10-15 01:12:10,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:12:10,014 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:10,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:12:10,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:10,015 INFO L87 Difference]: Start difference. First operand 8086 states and 11458 transitions. Second operand 9 states. [2019-10-15 01:12:10,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:10,322 INFO L93 Difference]: Finished difference Result 14679 states and 20862 transitions. [2019-10-15 01:12:10,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:12:10,323 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 208 [2019-10-15 01:12:10,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:10,382 INFO L225 Difference]: With dead ends: 14679 [2019-10-15 01:12:10,382 INFO L226 Difference]: Without dead ends: 8776 [2019-10-15 01:12:10,407 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:12:10,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8776 states. [2019-10-15 01:12:10,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8776 to 8716. [2019-10-15 01:12:10,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8716 states. [2019-10-15 01:12:11,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8716 states to 8716 states and 12428 transitions. [2019-10-15 01:12:11,469 INFO L78 Accepts]: Start accepts. Automaton has 8716 states and 12428 transitions. Word has length 208 [2019-10-15 01:12:11,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:11,470 INFO L462 AbstractCegarLoop]: Abstraction has 8716 states and 12428 transitions. [2019-10-15 01:12:11,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:12:11,471 INFO L276 IsEmpty]: Start isEmpty. Operand 8716 states and 12428 transitions. [2019-10-15 01:12:11,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-15 01:12:11,487 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:11,487 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] [2019-10-15 01:12:11,488 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:11,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:11,488 INFO L82 PathProgramCache]: Analyzing trace with hash -464354170, now seen corresponding path program 1 times [2019-10-15 01:12:11,488 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:11,488 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436759550] [2019-10-15 01:12:11,489 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:11,489 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:11,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:11,697 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:11,697 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436759550] [2019-10-15 01:12:11,698 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:11,698 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:12:11,698 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550799616] [2019-10-15 01:12:11,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:12:11,699 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:11,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:12:11,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:11,699 INFO L87 Difference]: Start difference. First operand 8716 states and 12428 transitions. Second operand 6 states. [2019-10-15 01:12:12,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:12,412 INFO L93 Difference]: Finished difference Result 24424 states and 35003 transitions. [2019-10-15 01:12:12,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:12:12,413 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 209 [2019-10-15 01:12:12,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:12,505 INFO L225 Difference]: With dead ends: 24424 [2019-10-15 01:12:12,506 INFO L226 Difference]: Without dead ends: 17567 [2019-10-15 01:12:12,557 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 [2019-10-15 01:12:12,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17567 states. [2019-10-15 01:12:13,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17567 to 17404. [2019-10-15 01:12:13,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17404 states. [2019-10-15 01:12:13,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17404 states to 17404 states and 24839 transitions. [2019-10-15 01:12:13,378 INFO L78 Accepts]: Start accepts. Automaton has 17404 states and 24839 transitions. Word has length 209 [2019-10-15 01:12:13,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:13,379 INFO L462 AbstractCegarLoop]: Abstraction has 17404 states and 24839 transitions. [2019-10-15 01:12:13,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:12:13,379 INFO L276 IsEmpty]: Start isEmpty. Operand 17404 states and 24839 transitions. [2019-10-15 01:12:13,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-15 01:12:13,411 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:13,411 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] [2019-10-15 01:12:13,411 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:13,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:13,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1595148004, now seen corresponding path program 1 times [2019-10-15 01:12:13,412 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:13,412 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730600293] [2019-10-15 01:12:13,412 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:13,412 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:13,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:13,597 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:13,597 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730600293] [2019-10-15 01:12:13,597 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:13,598 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:12:13,598 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353005804] [2019-10-15 01:12:13,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:12:13,599 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:13,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:12:13,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:13,600 INFO L87 Difference]: Start difference. First operand 17404 states and 24839 transitions. Second operand 9 states. [2019-10-15 01:12:14,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:14,169 INFO L93 Difference]: Finished difference Result 31567 states and 45065 transitions. [2019-10-15 01:12:14,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:12:14,169 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 210 [2019-10-15 01:12:14,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:14,232 INFO L225 Difference]: With dead ends: 31567 [2019-10-15 01:12:14,233 INFO L226 Difference]: Without dead ends: 18464 [2019-10-15 01:12:14,278 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:12:14,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18464 states. [2019-10-15 01:12:14,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18464 to 18394. [2019-10-15 01:12:14,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18394 states. [2019-10-15 01:12:14,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18394 states to 18394 states and 26314 transitions. [2019-10-15 01:12:15,002 INFO L78 Accepts]: Start accepts. Automaton has 18394 states and 26314 transitions. Word has length 210 [2019-10-15 01:12:15,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:15,003 INFO L462 AbstractCegarLoop]: Abstraction has 18394 states and 26314 transitions. [2019-10-15 01:12:15,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:12:15,003 INFO L276 IsEmpty]: Start isEmpty. Operand 18394 states and 26314 transitions. [2019-10-15 01:12:15,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-15 01:12:15,032 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:15,032 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] [2019-10-15 01:12:15,033 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:15,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:15,033 INFO L82 PathProgramCache]: Analyzing trace with hash 164838088, now seen corresponding path program 1 times [2019-10-15 01:12:15,033 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:15,033 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623815112] [2019-10-15 01:12:15,034 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:15,034 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:15,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:15,198 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:15,199 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623815112] [2019-10-15 01:12:15,199 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:15,199 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:12:15,199 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546784086] [2019-10-15 01:12:15,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:12:15,200 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:15,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:12:15,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:15,200 INFO L87 Difference]: Start difference. First operand 18394 states and 26314 transitions. Second operand 6 states. [2019-10-15 01:12:16,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:16,274 INFO L93 Difference]: Finished difference Result 51124 states and 73545 transitions. [2019-10-15 01:12:16,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:12:16,274 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 211 [2019-10-15 01:12:16,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:16,408 INFO L225 Difference]: With dead ends: 51124 [2019-10-15 01:12:16,409 INFO L226 Difference]: Without dead ends: 33194 [2019-10-15 01:12:16,473 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 [2019-10-15 01:12:16,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33194 states. [2019-10-15 01:12:18,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33194 to 32899. [2019-10-15 01:12:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32899 states. [2019-10-15 01:12:18,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32899 states to 32899 states and 47287 transitions. [2019-10-15 01:12:18,692 INFO L78 Accepts]: Start accepts. Automaton has 32899 states and 47287 transitions. Word has length 211 [2019-10-15 01:12:18,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:18,692 INFO L462 AbstractCegarLoop]: Abstraction has 32899 states and 47287 transitions. [2019-10-15 01:12:18,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:12:18,693 INFO L276 IsEmpty]: Start isEmpty. Operand 32899 states and 47287 transitions. [2019-10-15 01:12:18,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2019-10-15 01:12:18,747 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:18,747 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] [2019-10-15 01:12:18,747 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:18,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:18,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1161087888, now seen corresponding path program 1 times [2019-10-15 01:12:18,748 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:18,748 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360549811] [2019-10-15 01:12:18,748 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:18,749 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:18,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:12:18,859 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360549811] [2019-10-15 01:12:18,859 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:18,860 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:18,860 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272869679] [2019-10-15 01:12:18,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:18,861 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:18,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:18,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:18,861 INFO L87 Difference]: Start difference. First operand 32899 states and 47287 transitions. Second operand 3 states. [2019-10-15 01:12:19,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:19,639 INFO L93 Difference]: Finished difference Result 67796 states and 98298 transitions. [2019-10-15 01:12:19,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:19,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2019-10-15 01:12:19,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:19,775 INFO L225 Difference]: With dead ends: 67796 [2019-10-15 01:12:19,775 INFO L226 Difference]: Without dead ends: 34960 [2019-10-15 01:12:19,865 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 [2019-10-15 01:12:19,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34960 states. [2019-10-15 01:12:21,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34960 to 34939. [2019-10-15 01:12:21,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34939 states. [2019-10-15 01:12:21,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34939 states to 34939 states and 51013 transitions. [2019-10-15 01:12:21,395 INFO L78 Accepts]: Start accepts. Automaton has 34939 states and 51013 transitions. Word has length 220 [2019-10-15 01:12:21,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:21,395 INFO L462 AbstractCegarLoop]: Abstraction has 34939 states and 51013 transitions. [2019-10-15 01:12:21,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:21,395 INFO L276 IsEmpty]: Start isEmpty. Operand 34939 states and 51013 transitions. [2019-10-15 01:12:21,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-10-15 01:12:21,421 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:21,422 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] [2019-10-15 01:12:21,422 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:21,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:21,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1248992518, now seen corresponding path program 1 times [2019-10-15 01:12:21,422 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:21,423 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566927135] [2019-10-15 01:12:21,423 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:21,423 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:21,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:21,549 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:12:21,549 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566927135] [2019-10-15 01:12:21,549 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:21,549 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:21,550 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940033134] [2019-10-15 01:12:21,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:21,550 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:21,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:21,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:21,551 INFO L87 Difference]: Start difference. First operand 34939 states and 51013 transitions. Second operand 3 states.