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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:06:46,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:06:46,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:06:46,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:06:46,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:06:46,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:06:46,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:06:46,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:06:46,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:06:46,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:06:46,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:06:46,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:06:46,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:06:46,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:06:46,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:06:46,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:06:46,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:06:46,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:06:46,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:06:46,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:06:46,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:06:46,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:06:46,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:06:46,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:06:46,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:06:46,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:06:46,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:06:46,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:06:46,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:06:46,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:06:46,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:06:46,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:06:46,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:06:46,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:06:46,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:06:46,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:06:46,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:06:46,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:06:46,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:06:46,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:06:46,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:06:46,689 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:06:46,709 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:06:46,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:06:46,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:06:46,711 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:06:46,711 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:06:46,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:06:46,711 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:06:46,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:06:46,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:06:46,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:06:46,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:06:46,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:06:46,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:06:46,714 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:06:46,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:06:46,714 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:06:46,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:06:46,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:06:46,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:06:46,715 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:06:46,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:06:46,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:06:46,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:06:46,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:06:46,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:06:46,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:06:46,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:06:46,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:06:46,717 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:06:46,995 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:06:47,008 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:06:47,011 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:06:47,013 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:06:47,013 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:06:47,014 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product15.cil.c [2019-10-13 23:06:47,084 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bbe77b25/00351b75d1e34af2889767bb21b3db57/FLAG0700575a9 [2019-10-13 23:06:47,750 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:06:47,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product15.cil.c [2019-10-13 23:06:47,774 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bbe77b25/00351b75d1e34af2889767bb21b3db57/FLAG0700575a9 [2019-10-13 23:06:47,909 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bbe77b25/00351b75d1e34af2889767bb21b3db57 [2019-10-13 23:06:47,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:06:47,921 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:06:47,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:06:47,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:06:47,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:06:47,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:06:47" (1/1) ... [2019-10-13 23:06:47,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337d4e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:47, skipping insertion in model container [2019-10-13 23:06:47,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:06:47" (1/1) ... [2019-10-13 23:06:47,935 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:06:48,011 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:06:48,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:06:48,806 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:06:48,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:06:49,055 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:06:49,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:49 WrapperNode [2019-10-13 23:06:49,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:06:49,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:06:49,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:06:49,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:06:49,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:49" (1/1) ... [2019-10-13 23:06:49,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:49" (1/1) ... [2019-10-13 23:06:49,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:49" (1/1) ... [2019-10-13 23:06:49,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:49" (1/1) ... [2019-10-13 23:06:49,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:49" (1/1) ... [2019-10-13 23:06:49,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:49" (1/1) ... [2019-10-13 23:06:49,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:49" (1/1) ... [2019-10-13 23:06:49,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:06:49,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:06:49,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:06:49,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:06:49,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:06:49,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:06:49,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:06:49,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:06:49,293 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:06:49,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:06:49,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:06:49,294 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:06:49,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:06:49,294 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:06:49,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:06:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:06:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:06:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:06:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:06:49,296 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:06:49,296 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:06:49,296 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:06:49,296 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:06:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:06:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:06:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:06:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:06:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:06:49,298 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:06:49,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-13 23:06:49,298 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:06:49,298 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:06:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:06:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:06:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:06:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-13 23:06:49,300 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:06:49,300 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:06:49,300 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:06:49,300 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:06:49,300 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:06:49,301 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:06:49,301 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:06:49,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:06:49,301 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:06:49,301 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:06:49,301 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:06:49,302 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:06:49,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:06:49,302 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:06:49,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:06:49,302 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:06:49,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:06:49,303 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:06:49,303 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:06:49,303 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:06:49,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:06:49,303 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:06:49,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:06:49,304 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:06:49,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:06:49,304 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:06:49,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:06:49,304 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:06:49,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:06:49,305 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:06:49,305 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:06:49,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:06:49,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:06:49,306 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:06:49,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:06:49,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:06:49,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:06:49,307 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:06:49,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:06:49,307 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:06:49,307 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:06:49,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:06:49,308 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:06:49,308 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:06:49,308 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:06:49,308 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:06:49,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:06:49,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:06:49,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:06:49,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:06:49,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:06:49,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:06:49,309 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:06:49,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:06:49,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:06:49,310 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:06:49,310 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:06:49,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:06:49,311 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:06:49,311 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:06:49,311 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:06:49,311 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:06:49,311 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:06:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:06:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:06:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:06:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:06:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:06:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:06:49,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:06:49,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:06:49,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:06:49,313 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:06:49,313 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:06:49,313 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:06:49,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:06:49,314 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:06:49,314 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:06:49,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:06:49,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:06:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:06:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:06:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:06:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:06:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:06:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:06:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:06:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:06:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:06:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:06:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:06:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:06:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:06:49,317 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:06:49,317 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:06:49,317 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:06:49,317 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:06:49,317 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:06:49,317 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:06:49,318 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:06:49,318 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:06:49,318 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:06:49,318 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:06:49,318 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:06:49,318 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-13 23:06:49,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:06:49,319 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:06:49,319 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:06:49,319 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:06:49,319 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:06:49,319 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:06:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:06:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:06:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:06:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:06:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:06:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:06:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:06:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:06:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:06:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:06:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:06:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:06:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:06:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:06:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:06:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:06:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:06:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:06:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-13 23:06:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:06:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:06:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:06:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:06:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:06:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:06:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:06:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:06:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:06:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:06:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:06:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:06:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:06:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:06:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:06:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:06:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:06:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:06:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:06:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:06:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:06:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:06:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:06:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:06:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:06:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:06:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:06:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:06:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:06:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:06:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:06:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:06:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:06:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:06:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:06:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:06:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:06:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:06:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:06:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:06:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:06:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:06:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:06:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:06:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:06:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:06:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:06:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:06:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:06:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:06:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:06:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:06:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:06:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:06:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:06:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:06:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:06:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:06:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:06:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:06:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:06:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:06:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:06:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:06:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:06:49,331 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:06:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:06:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:06:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:06:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:06:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:06:49,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:06:53,542 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:06:53,542 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:06:53,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:06:53 BoogieIcfgContainer [2019-10-13 23:06:53,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:06:53,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:06:53,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:06:53,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:06:53,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:06:47" (1/3) ... [2019-10-13 23:06:53,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a0b7d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:06:53, skipping insertion in model container [2019-10-13 23:06:53,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:49" (2/3) ... [2019-10-13 23:06:53,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a0b7d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:06:53, skipping insertion in model container [2019-10-13 23:06:53,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:06:53" (3/3) ... [2019-10-13 23:06:53,552 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product15.cil.c [2019-10-13 23:06:53,562 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:06:53,572 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:06:53,584 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:06:53,613 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:06:53,613 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:06:53,613 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:06:53,613 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:06:53,614 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:06:53,614 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:06:53,614 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:06:53,614 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:06:53,642 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2019-10-13 23:06:53,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 23:06:53,660 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:53,661 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:06:53,663 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:53,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:53,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1337867109, now seen corresponding path program 1 times [2019-10-13 23:06:53,678 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:53,678 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749893409] [2019-10-13 23:06:53,678 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:53,678 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:53,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:54,336 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:06:54,337 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749893409] [2019-10-13 23:06:54,338 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:54,339 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:06:54,339 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292139902] [2019-10-13 23:06:54,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:06:54,345 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:54,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:06:54,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:06:54,363 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 2 states. [2019-10-13 23:06:54,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:54,441 INFO L93 Difference]: Finished difference Result 462 states and 544 transitions. [2019-10-13 23:06:54,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:06:54,443 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 146 [2019-10-13 23:06:54,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:54,462 INFO L225 Difference]: With dead ends: 462 [2019-10-13 23:06:54,463 INFO L226 Difference]: Without dead ends: 306 [2019-10-13 23:06:54,468 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:06:54,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2019-10-13 23:06:54,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2019-10-13 23:06:54,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-10-13 23:06:54,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 359 transitions. [2019-10-13 23:06:54,674 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 359 transitions. Word has length 146 [2019-10-13 23:06:54,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:54,676 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 359 transitions. [2019-10-13 23:06:54,676 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:06:54,676 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 359 transitions. [2019-10-13 23:06:54,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-13 23:06:54,684 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:54,685 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:06:54,685 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:54,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:54,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1569944248, now seen corresponding path program 1 times [2019-10-13 23:06:54,686 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:54,686 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823056797] [2019-10-13 23:06:54,686 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:54,686 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:54,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:54,993 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:06:54,994 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823056797] [2019-10-13 23:06:54,994 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:54,994 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:06:54,994 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18503373] [2019-10-13 23:06:54,997 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:06:54,997 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:54,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:06:54,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:06:54,998 INFO L87 Difference]: Start difference. First operand 306 states and 359 transitions. Second operand 3 states. [2019-10-13 23:06:55,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:55,064 INFO L93 Difference]: Finished difference Result 447 states and 513 transitions. [2019-10-13 23:06:55,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:06:55,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-10-13 23:06:55,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:55,070 INFO L225 Difference]: With dead ends: 447 [2019-10-13 23:06:55,070 INFO L226 Difference]: Without dead ends: 308 [2019-10-13 23:06:55,073 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:06:55,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2019-10-13 23:06:55,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2019-10-13 23:06:55,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2019-10-13 23:06:55,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 361 transitions. [2019-10-13 23:06:55,101 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 361 transitions. Word has length 147 [2019-10-13 23:06:55,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:55,101 INFO L462 AbstractCegarLoop]: Abstraction has 308 states and 361 transitions. [2019-10-13 23:06:55,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:06:55,102 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 361 transitions. [2019-10-13 23:06:55,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-13 23:06:55,107 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:55,107 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:06:55,108 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:55,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:55,108 INFO L82 PathProgramCache]: Analyzing trace with hash 239298933, now seen corresponding path program 1 times [2019-10-13 23:06:55,108 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:55,109 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124400359] [2019-10-13 23:06:55,109 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:55,109 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:55,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:55,355 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:06:55,356 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124400359] [2019-10-13 23:06:55,356 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:55,356 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:06:55,356 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220153816] [2019-10-13 23:06:55,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:06:55,358 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:55,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:06:55,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:06:55,359 INFO L87 Difference]: Start difference. First operand 308 states and 361 transitions. Second operand 3 states. [2019-10-13 23:06:55,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:55,398 INFO L93 Difference]: Finished difference Result 598 states and 729 transitions. [2019-10-13 23:06:55,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:06:55,399 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-10-13 23:06:55,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:55,402 INFO L225 Difference]: With dead ends: 598 [2019-10-13 23:06:55,402 INFO L226 Difference]: Without dead ends: 348 [2019-10-13 23:06:55,405 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:06:55,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-10-13 23:06:55,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 347. [2019-10-13 23:06:55,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-10-13 23:06:55,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 429 transitions. [2019-10-13 23:06:55,434 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 429 transitions. Word has length 156 [2019-10-13 23:06:55,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:55,435 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 429 transitions. [2019-10-13 23:06:55,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:06:55,435 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 429 transitions. [2019-10-13 23:06:55,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-13 23:06:55,439 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:55,439 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:06:55,440 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:55,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:55,440 INFO L82 PathProgramCache]: Analyzing trace with hash 462235384, now seen corresponding path program 1 times [2019-10-13 23:06:55,440 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:55,441 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925813161] [2019-10-13 23:06:55,441 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:55,441 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:55,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:55,640 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:06:55,643 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925813161] [2019-10-13 23:06:55,644 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:55,644 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:06:55,644 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236827238] [2019-10-13 23:06:55,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:06:55,653 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:55,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:06:55,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:06:55,654 INFO L87 Difference]: Start difference. First operand 347 states and 429 transitions. Second operand 3 states. [2019-10-13 23:06:55,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:55,704 INFO L93 Difference]: Finished difference Result 712 states and 928 transitions. [2019-10-13 23:06:55,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:06:55,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-10-13 23:06:55,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:55,709 INFO L225 Difference]: With dead ends: 712 [2019-10-13 23:06:55,709 INFO L226 Difference]: Without dead ends: 423 [2019-10-13 23:06:55,711 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:06:55,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-10-13 23:06:55,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 422. [2019-10-13 23:06:55,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2019-10-13 23:06:55,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 559 transitions. [2019-10-13 23:06:55,736 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 559 transitions. Word has length 157 [2019-10-13 23:06:55,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:55,737 INFO L462 AbstractCegarLoop]: Abstraction has 422 states and 559 transitions. [2019-10-13 23:06:55,737 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:06:55,737 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 559 transitions. [2019-10-13 23:06:55,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-13 23:06:55,741 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:55,742 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:06:55,742 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:55,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:55,743 INFO L82 PathProgramCache]: Analyzing trace with hash 758529619, now seen corresponding path program 1 times [2019-10-13 23:06:55,744 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:55,745 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338926026] [2019-10-13 23:06:55,745 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:55,745 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:55,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:55,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:56,493 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:06:56,494 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338926026] [2019-10-13 23:06:56,494 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:56,494 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-13 23:06:56,495 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265708445] [2019-10-13 23:06:56,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-13 23:06:56,496 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:56,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-13 23:06:56,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2019-10-13 23:06:56,498 INFO L87 Difference]: Start difference. First operand 422 states and 559 transitions. Second operand 26 states. [2019-10-13 23:07:02,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:02,825 INFO L93 Difference]: Finished difference Result 742 states and 935 transitions. [2019-10-13 23:07:02,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 23:07:02,826 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 160 [2019-10-13 23:07:02,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:02,831 INFO L225 Difference]: With dead ends: 742 [2019-10-13 23:07:02,831 INFO L226 Difference]: Without dead ends: 596 [2019-10-13 23:07:02,833 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=159, Invalid=1647, Unknown=0, NotChecked=0, Total=1806 [2019-10-13 23:07:02,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-10-13 23:07:02,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 584. [2019-10-13 23:07:02,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-10-13 23:07:02,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 749 transitions. [2019-10-13 23:07:02,869 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 749 transitions. Word has length 160 [2019-10-13 23:07:02,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:02,870 INFO L462 AbstractCegarLoop]: Abstraction has 584 states and 749 transitions. [2019-10-13 23:07:02,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-13 23:07:02,870 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 749 transitions. [2019-10-13 23:07:02,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-13 23:07:02,873 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:02,874 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:07:02,874 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:02,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:02,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1039996662, now seen corresponding path program 1 times [2019-10-13 23:07:02,875 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:02,875 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861994110] [2019-10-13 23:07:02,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:02,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:02,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:03,078 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:07:03,080 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861994110] [2019-10-13 23:07:03,081 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:03,082 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:07:03,082 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343804411] [2019-10-13 23:07:03,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:07:03,083 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:03,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:07:03,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:07:03,084 INFO L87 Difference]: Start difference. First operand 584 states and 749 transitions. Second operand 10 states. [2019-10-13 23:07:03,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:03,140 INFO L93 Difference]: Finished difference Result 593 states and 758 transitions. [2019-10-13 23:07:03,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:07:03,140 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2019-10-13 23:07:03,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:03,144 INFO L225 Difference]: With dead ends: 593 [2019-10-13 23:07:03,145 INFO L226 Difference]: Without dead ends: 588 [2019-10-13 23:07:03,145 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:07:03,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2019-10-13 23:07:03,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 588. [2019-10-13 23:07:03,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 588 states. [2019-10-13 23:07:03,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 751 transitions. [2019-10-13 23:07:03,183 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 751 transitions. Word has length 164 [2019-10-13 23:07:03,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:03,185 INFO L462 AbstractCegarLoop]: Abstraction has 588 states and 751 transitions. [2019-10-13 23:07:03,185 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:07:03,185 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 751 transitions. [2019-10-13 23:07:03,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-13 23:07:03,188 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:03,188 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:07:03,189 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:03,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:03,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1434930001, now seen corresponding path program 1 times [2019-10-13 23:07:03,189 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:03,190 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127187069] [2019-10-13 23:07:03,190 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:03,190 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:03,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:03,728 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:07:03,728 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127187069] [2019-10-13 23:07:03,728 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:03,729 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:07:03,729 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21445930] [2019-10-13 23:07:03,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:07:03,730 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:03,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:07:03,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:07:03,730 INFO L87 Difference]: Start difference. First operand 588 states and 751 transitions. Second operand 12 states. [2019-10-13 23:07:05,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:05,911 INFO L93 Difference]: Finished difference Result 1158 states and 1437 transitions. [2019-10-13 23:07:05,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:07:05,911 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 166 [2019-10-13 23:07:05,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:05,918 INFO L225 Difference]: With dead ends: 1158 [2019-10-13 23:07:05,918 INFO L226 Difference]: Without dead ends: 1020 [2019-10-13 23:07:05,920 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-10-13 23:07:05,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2019-10-13 23:07:05,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 970. [2019-10-13 23:07:05,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2019-10-13 23:07:05,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1215 transitions. [2019-10-13 23:07:05,977 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1215 transitions. Word has length 166 [2019-10-13 23:07:05,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:05,977 INFO L462 AbstractCegarLoop]: Abstraction has 970 states and 1215 transitions. [2019-10-13 23:07:05,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:07:05,977 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1215 transitions. [2019-10-13 23:07:05,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-13 23:07:05,982 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:05,982 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:07:05,983 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:05,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:05,983 INFO L82 PathProgramCache]: Analyzing trace with hash -108051550, now seen corresponding path program 1 times [2019-10-13 23:07:05,983 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:05,983 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342008677] [2019-10-13 23:07:05,984 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:05,984 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:05,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:06,476 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 23:07:06,476 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342008677] [2019-10-13 23:07:06,477 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130831269] [2019-10-13 23:07:06,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:07:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:07,010 INFO L256 TraceCheckSpWp]: Trace formula consists of 2573 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:07:07,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:07:07,152 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:07:07,153 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:07:07,370 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:07:07,370 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [632703606] [2019-10-13 23:07:07,405 INFO L162 IcfgInterpreter]: Started Sifa with 165 locations of interest [2019-10-13 23:07:07,406 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:07:07,418 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:07:07,435 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:07:07,436 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs