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_spec6_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:11:05,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:11:05,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:11:05,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:11:05,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:11:05,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:11:05,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:11:05,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:11:05,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:11:05,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:11:05,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:11:05,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:11:05,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:11:05,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:11:05,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:11:05,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:11:05,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:11:05,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:11:05,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:11:05,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:11:05,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:11:05,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:11:05,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:11:05,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:11:05,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:11:05,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:11:05,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:11:05,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:11:05,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:11:05,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:11:05,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:11:05,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:11:05,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:11:05,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:11:05,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:11:05,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:11:05,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:11:05,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:11:05,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:11:05,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:11:05,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:11:05,582 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 23:11:05,606 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:11:05,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:11:05,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:11:05,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:11:05,608 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:11:05,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:11:05,609 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:11:05,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:11:05,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:11:05,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:11:05,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:11:05,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:11:05,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:11:05,610 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:11:05,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:11:05,611 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:11:05,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:11:05,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:11:05,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:11:05,612 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:11:05,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:11:05,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:11:05,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:11:05,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:11:05,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:11:05,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:11:05,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:11:05,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:11:05,615 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 23:11:05,912 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:11:05,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:11:05,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:11:05,934 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:11:05,934 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:11:05,935 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product15.cil.c [2019-10-13 23:11:06,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3f655a7f/69c4dd250ea54da9b92bc5fb9d1883dd/FLAGc525214c4 [2019-10-13 23:11:06,695 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:11:06,698 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product15.cil.c [2019-10-13 23:11:06,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3f655a7f/69c4dd250ea54da9b92bc5fb9d1883dd/FLAGc525214c4 [2019-10-13 23:11:06,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3f655a7f/69c4dd250ea54da9b92bc5fb9d1883dd [2019-10-13 23:11:06,879 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:11:06,881 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:11:06,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:06,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:11:06,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:11:06,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:06" (1/1) ... [2019-10-13 23:11:06,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4563917c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:06, skipping insertion in model container [2019-10-13 23:11:06,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:06" (1/1) ... [2019-10-13 23:11:06,899 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:11:07,000 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:11:07,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:07,824 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:11:07,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:08,045 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:11:08,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:08 WrapperNode [2019-10-13 23:11:08,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:08,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:11:08,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:11:08,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:11:08,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:08" (1/1) ... [2019-10-13 23:11:08,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:08" (1/1) ... [2019-10-13 23:11:08,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:08" (1/1) ... [2019-10-13 23:11:08,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:08" (1/1) ... [2019-10-13 23:11:08,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:08" (1/1) ... [2019-10-13 23:11:08,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:08" (1/1) ... [2019-10-13 23:11:08,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:08" (1/1) ... [2019-10-13 23:11:08,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:11:08,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:11:08,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:11:08,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:11:08,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:08" (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 23:11:08,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:11:08,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:11:08,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:08,282 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:11:08,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:11:08,283 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:11:08,283 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:11:08,283 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:11:08,284 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:11:08,284 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:11:08,284 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-13 23:11:08,284 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:11:08,284 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:11:08,285 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:11:08,285 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:11:08,285 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:11:08,285 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:11:08,286 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:11:08,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:11:08,287 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:11:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:11:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:11:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:11:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:11:08,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:11:08,291 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:11:08,291 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:11:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:11:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:11:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:11:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:11:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:11:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:11:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:11:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:11:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:11:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:11:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:11:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:11:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:11:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:11:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:11:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:11:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:11:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:11:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:11:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:11:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:11:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:11:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:11:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:11:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:11:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:11:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:11:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:11:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:11:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:11:08,298 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:11:08,298 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:11:08,299 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:11:08,299 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:11:08,299 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:11:08,299 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:11:08,299 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:11:08,300 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:11:08,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:11:08,300 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:11:08,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:11:08,300 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:11:08,301 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:11:08,301 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:11:08,301 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:11:08,301 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:11:08,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:11:08,303 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:11:08,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:11:08,304 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:11:08,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:11:08,305 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:11:08,305 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:11:08,305 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:11:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:11:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:08,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:08,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:11:08,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:11:08,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:08,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:11:08,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:11:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:11:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:11:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:11:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:11:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:11:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:11:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:11:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:11:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:11:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:11:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:11:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:11:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:11:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:11:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:11:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:11:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:11:08,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:11:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:11:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:11:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:11:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:11:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:11:08,313 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:11:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:11:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:11:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:11:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:11:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:11:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:11:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:11:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:11:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:11:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:11:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:11:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:11:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:11:08,318 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:11:08,318 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:11:08,318 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:11:08,319 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:11:08,323 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:11:08,323 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:11:08,323 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:11:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:11:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:11:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:11:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:11:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:11:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:11:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:11:08,332 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:11:08,332 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:11:08,332 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:11:08,332 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:11:08,332 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:11:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:11:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:11:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:11:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:11:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:11:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:11:08,334 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:11:08,334 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-13 23:11:08,334 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:08,334 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:11:08,335 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:11:08,335 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:11:08,335 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:11:08,335 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:11:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:11:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:11:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:11:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:11:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:11:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:11:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:11:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:11:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:11:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:11:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:11:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:11:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:11:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:11:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:11:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:11:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:11:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:11:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:11:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:11:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:11:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:11:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:11:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:11:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:11:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:11:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:11:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:11:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:11:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:11:08,339 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:11:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:11:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:11:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:11:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:11:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:11:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:11:08,340 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:11:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:11:08,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:11:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:11:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:11:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:11:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:11:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:11:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:11:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:11:08,342 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:11:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:11:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:11:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:11:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:11:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:11:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:11:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:11:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:11:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:11:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:11:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:11:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:11:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:11:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:11:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:11:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:11:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:11:12,875 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:11:12,875 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:11:12,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:12 BoogieIcfgContainer [2019-10-13 23:11:12,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:11:12,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:11:12,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:11:12,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:11:12,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:11:06" (1/3) ... [2019-10-13 23:11:12,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288e839c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:12, skipping insertion in model container [2019-10-13 23:11:12,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:08" (2/3) ... [2019-10-13 23:11:12,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288e839c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:12, skipping insertion in model container [2019-10-13 23:11:12,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:12" (3/3) ... [2019-10-13 23:11:12,885 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product15.cil.c [2019-10-13 23:11:12,893 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:11:12,900 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:11:12,909 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:11:12,939 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:11:12,939 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:11:12,939 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:11:12,940 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:11:12,940 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:11:12,940 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:11:12,940 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:11:12,940 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:11:12,967 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states. [2019-10-13 23:11:12,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-13 23:11:12,983 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:12,985 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] [2019-10-13 23:11:12,987 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:12,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:12,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1779818681, now seen corresponding path program 1 times [2019-10-13 23:11:12,999 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:13,000 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374543054] [2019-10-13 23:11:13,000 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:13,000 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:13,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:13,714 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 23:11:13,715 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374543054] [2019-10-13 23:11:13,715 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:13,716 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:11:13,716 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928703911] [2019-10-13 23:11:13,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:11:13,725 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:13,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:11:13,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:11:13,743 INFO L87 Difference]: Start difference. First operand 348 states. Second operand 2 states. [2019-10-13 23:11:13,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:13,826 INFO L93 Difference]: Finished difference Result 462 states and 548 transitions. [2019-10-13 23:11:13,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:11:13,828 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 136 [2019-10-13 23:11:13,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:13,849 INFO L225 Difference]: With dead ends: 462 [2019-10-13 23:11:13,849 INFO L226 Difference]: Without dead ends: 306 [2019-10-13 23:11:13,854 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 23:11:13,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2019-10-13 23:11:13,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2019-10-13 23:11:13,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-10-13 23:11:13,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 362 transitions. [2019-10-13 23:11:13,963 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 362 transitions. Word has length 136 [2019-10-13 23:11:13,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:13,965 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 362 transitions. [2019-10-13 23:11:13,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:11:13,966 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 362 transitions. [2019-10-13 23:11:13,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-13 23:11:13,972 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:13,972 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] [2019-10-13 23:11:13,972 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:13,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:13,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1593772105, now seen corresponding path program 1 times [2019-10-13 23:11:13,973 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:13,973 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822798716] [2019-10-13 23:11:13,973 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:13,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:13,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:14,232 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 23:11:14,232 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822798716] [2019-10-13 23:11:14,233 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:14,233 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:14,233 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802758384] [2019-10-13 23:11:14,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:14,238 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:14,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:14,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:14,239 INFO L87 Difference]: Start difference. First operand 306 states and 362 transitions. Second operand 3 states. [2019-10-13 23:11:14,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:14,298 INFO L93 Difference]: Finished difference Result 447 states and 519 transitions. [2019-10-13 23:11:14,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:14,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2019-10-13 23:11:14,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:14,308 INFO L225 Difference]: With dead ends: 447 [2019-10-13 23:11:14,309 INFO L226 Difference]: Without dead ends: 308 [2019-10-13 23:11:14,314 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 23:11:14,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2019-10-13 23:11:14,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2019-10-13 23:11:14,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2019-10-13 23:11:14,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 364 transitions. [2019-10-13 23:11:14,353 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 364 transitions. Word has length 137 [2019-10-13 23:11:14,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:14,354 INFO L462 AbstractCegarLoop]: Abstraction has 308 states and 364 transitions. [2019-10-13 23:11:14,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:14,354 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 364 transitions. [2019-10-13 23:11:14,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 23:11:14,359 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:14,359 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] [2019-10-13 23:11:14,359 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:14,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:14,360 INFO L82 PathProgramCache]: Analyzing trace with hash 388168151, now seen corresponding path program 1 times [2019-10-13 23:11:14,360 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:14,360 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304567465] [2019-10-13 23:11:14,361 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:14,361 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:14,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:14,547 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 23:11:14,547 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304567465] [2019-10-13 23:11:14,547 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:14,548 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:14,548 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630510514] [2019-10-13 23:11:14,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:14,550 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:14,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:14,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:14,550 INFO L87 Difference]: Start difference. First operand 308 states and 364 transitions. Second operand 3 states. [2019-10-13 23:11:14,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:14,650 INFO L93 Difference]: Finished difference Result 598 states and 735 transitions. [2019-10-13 23:11:14,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:14,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-13 23:11:14,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:14,656 INFO L225 Difference]: With dead ends: 598 [2019-10-13 23:11:14,656 INFO L226 Difference]: Without dead ends: 348 [2019-10-13 23:11:14,659 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 23:11:14,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-10-13 23:11:14,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 347. [2019-10-13 23:11:14,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-10-13 23:11:14,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 432 transitions. [2019-10-13 23:11:14,690 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 432 transitions. Word has length 146 [2019-10-13 23:11:14,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:14,691 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 432 transitions. [2019-10-13 23:11:14,691 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:14,691 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 432 transitions. [2019-10-13 23:11:14,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-13 23:11:14,694 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:14,695 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] [2019-10-13 23:11:14,695 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:14,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:14,695 INFO L82 PathProgramCache]: Analyzing trace with hash 566383838, now seen corresponding path program 1 times [2019-10-13 23:11:14,696 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:14,696 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582448525] [2019-10-13 23:11:14,696 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:14,696 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:14,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:14,839 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 23:11:14,840 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582448525] [2019-10-13 23:11:14,840 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:14,840 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:14,840 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065517129] [2019-10-13 23:11:14,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:14,841 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:14,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:14,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:14,842 INFO L87 Difference]: Start difference. First operand 347 states and 432 transitions. Second operand 3 states. [2019-10-13 23:11:14,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:14,882 INFO L93 Difference]: Finished difference Result 712 states and 934 transitions. [2019-10-13 23:11:14,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:14,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-10-13 23:11:14,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:14,887 INFO L225 Difference]: With dead ends: 712 [2019-10-13 23:11:14,887 INFO L226 Difference]: Without dead ends: 423 [2019-10-13 23:11:14,888 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 23:11:14,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-10-13 23:11:14,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 422. [2019-10-13 23:11:14,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2019-10-13 23:11:14,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 562 transitions. [2019-10-13 23:11:14,920 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 562 transitions. Word has length 147 [2019-10-13 23:11:14,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:14,921 INFO L462 AbstractCegarLoop]: Abstraction has 422 states and 562 transitions. [2019-10-13 23:11:14,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:14,921 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 562 transitions. [2019-10-13 23:11:14,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 23:11:14,929 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:14,929 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] [2019-10-13 23:11:14,930 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:14,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:14,930 INFO L82 PathProgramCache]: Analyzing trace with hash 48314154, now seen corresponding path program 1 times [2019-10-13 23:11:14,930 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:14,931 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038039292] [2019-10-13 23:11:14,931 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:14,932 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:14,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:15,552 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 23:11:15,553 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038039292] [2019-10-13 23:11:15,553 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:15,553 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-10-13 23:11:15,554 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501216488] [2019-10-13 23:11:15,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-13 23:11:15,554 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:15,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-13 23:11:15,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2019-10-13 23:11:15,557 INFO L87 Difference]: Start difference. First operand 422 states and 562 transitions. Second operand 22 states. [2019-10-13 23:11:21,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:21,843 INFO L93 Difference]: Finished difference Result 875 states and 1081 transitions. [2019-10-13 23:11:21,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 23:11:21,844 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 150 [2019-10-13 23:11:21,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:21,850 INFO L225 Difference]: With dead ends: 875 [2019-10-13 23:11:21,850 INFO L226 Difference]: Without dead ends: 687 [2019-10-13 23:11:21,852 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=233, Invalid=1929, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 23:11:21,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2019-10-13 23:11:21,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 678. [2019-10-13 23:11:21,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2019-10-13 23:11:21,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 844 transitions. [2019-10-13 23:11:21,895 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 844 transitions. Word has length 150 [2019-10-13 23:11:21,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:21,896 INFO L462 AbstractCegarLoop]: Abstraction has 678 states and 844 transitions. [2019-10-13 23:11:21,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-13 23:11:21,896 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 844 transitions. [2019-10-13 23:11:21,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-13 23:11:21,899 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:21,900 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 23:11:21,900 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:21,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:21,900 INFO L82 PathProgramCache]: Analyzing trace with hash 832653906, now seen corresponding path program 1 times [2019-10-13 23:11:21,901 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:21,901 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910368691] [2019-10-13 23:11:21,901 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:21,901 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:21,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:22,257 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 23:11:22,257 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910368691] [2019-10-13 23:11:22,258 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:22,258 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:11:22,258 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681874025] [2019-10-13 23:11:22,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:11:22,259 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:22,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:11:22,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:11:22,260 INFO L87 Difference]: Start difference. First operand 678 states and 844 transitions. Second operand 12 states. [2019-10-13 23:11:24,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:24,397 INFO L93 Difference]: Finished difference Result 1406 states and 1696 transitions. [2019-10-13 23:11:24,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:11:24,398 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 156 [2019-10-13 23:11:24,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:24,406 INFO L225 Difference]: With dead ends: 1406 [2019-10-13 23:11:24,406 INFO L226 Difference]: Without dead ends: 1083 [2019-10-13 23:11:24,408 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-10-13 23:11:24,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2019-10-13 23:11:24,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1008. [2019-10-13 23:11:24,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1008 states. [2019-10-13 23:11:24,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1240 transitions. [2019-10-13 23:11:24,473 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1240 transitions. Word has length 156 [2019-10-13 23:11:24,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:24,474 INFO L462 AbstractCegarLoop]: Abstraction has 1008 states and 1240 transitions. [2019-10-13 23:11:24,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:11:24,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1240 transitions. [2019-10-13 23:11:24,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-13 23:11:24,478 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:24,479 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, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:24,479 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:24,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:24,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1230130528, now seen corresponding path program 1 times [2019-10-13 23:11:24,480 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:24,480 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415030990] [2019-10-13 23:11:24,480 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:24,480 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:24,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:24,707 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 23:11:24,707 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415030990] [2019-10-13 23:11:24,707 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:24,708 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:24,708 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158549548] [2019-10-13 23:11:24,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:24,709 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:24,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:24,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:24,709 INFO L87 Difference]: Start difference. First operand 1008 states and 1240 transitions. Second operand 3 states. [2019-10-13 23:11:24,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:24,776 INFO L93 Difference]: Finished difference Result 2159 states and 2771 transitions. [2019-10-13 23:11:24,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:24,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2019-10-13 23:11:24,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:24,785 INFO L225 Difference]: With dead ends: 2159 [2019-10-13 23:11:24,785 INFO L226 Difference]: Without dead ends: 1209 [2019-10-13 23:11:24,788 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 23:11:24,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2019-10-13 23:11:24,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1207. [2019-10-13 23:11:24,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1207 states. [2019-10-13 23:11:24,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1586 transitions. [2019-10-13 23:11:24,861 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1586 transitions. Word has length 172 [2019-10-13 23:11:24,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:24,864 INFO L462 AbstractCegarLoop]: Abstraction has 1207 states and 1586 transitions. [2019-10-13 23:11:24,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:24,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1586 transitions. [2019-10-13 23:11:24,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-13 23:11:24,869 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:24,870 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:24,870 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:24,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:24,871 INFO L82 PathProgramCache]: Analyzing trace with hash -747573017, now seen corresponding path program 1 times [2019-10-13 23:11:24,872 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:24,872 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707840002] [2019-10-13 23:11:24,872 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:24,872 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:24,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:25,341 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 23:11:25,342 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707840002] [2019-10-13 23:11:25,342 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:25,342 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 23:11:25,342 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111931690] [2019-10-13 23:11:25,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:11:25,344 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:25,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:11:25,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:11:25,345 INFO L87 Difference]: Start difference. First operand 1207 states and 1586 transitions. Second operand 14 states. [2019-10-13 23:11:30,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:30,083 INFO L93 Difference]: Finished difference Result 2756 states and 3746 transitions. [2019-10-13 23:11:30,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-13 23:11:30,084 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 173 [2019-10-13 23:11:30,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:30,096 INFO L225 Difference]: With dead ends: 2756 [2019-10-13 23:11:30,097 INFO L226 Difference]: Without dead ends: 1991 [2019-10-13 23:11:30,104 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=191, Invalid=801, Unknown=0, NotChecked=0, Total=992 [2019-10-13 23:11:30,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2019-10-13 23:11:30,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1593. [2019-10-13 23:11:30,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1593 states. [2019-10-13 23:11:30,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1593 states to 1593 states and 2267 transitions. [2019-10-13 23:11:30,251 INFO L78 Accepts]: Start accepts. Automaton has 1593 states and 2267 transitions. Word has length 173 [2019-10-13 23:11:30,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:30,254 INFO L462 AbstractCegarLoop]: Abstraction has 1593 states and 2267 transitions. [2019-10-13 23:11:30,255 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:11:30,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1593 states and 2267 transitions. [2019-10-13 23:11:30,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-13 23:11:30,267 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:30,268 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:30,268 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:30,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:30,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1683079785, now seen corresponding path program 1 times [2019-10-13 23:11:30,269 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:30,269 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942252714] [2019-10-13 23:11:30,270 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:30,270 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:30,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:30,477 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 23:11:30,477 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942252714] [2019-10-13 23:11:30,478 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:30,479 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:30,480 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277038888] [2019-10-13 23:11:30,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:30,481 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:30,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:30,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:30,482 INFO L87 Difference]: Start difference. First operand 1593 states and 2267 transitions. Second operand 3 states. [2019-10-13 23:11:30,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:30,613 INFO L93 Difference]: Finished difference Result 3401 states and 4978 transitions. [2019-10-13 23:11:30,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:30,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-10-13 23:11:30,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:30,630 INFO L225 Difference]: With dead ends: 3401 [2019-10-13 23:11:30,631 INFO L226 Difference]: Without dead ends: 1870 [2019-10-13 23:11:30,638 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 23:11:30,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1870 states. [2019-10-13 23:11:30,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1870 to 1869. [2019-10-13 23:11:30,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1869 states. [2019-10-13 23:11:30,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 2755 transitions. [2019-10-13 23:11:30,775 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 2755 transitions. Word has length 174 [2019-10-13 23:11:30,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:30,775 INFO L462 AbstractCegarLoop]: Abstraction has 1869 states and 2755 transitions. [2019-10-13 23:11:30,776 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:30,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 2755 transitions. [2019-10-13 23:11:30,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-13 23:11:30,785 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:30,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:30,786 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:30,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:30,787 INFO L82 PathProgramCache]: Analyzing trace with hash -2005906263, now seen corresponding path program 1 times [2019-10-13 23:11:30,787 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:30,787 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785632528] [2019-10-13 23:11:30,787 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:30,787 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:30,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:31,029 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 23:11:31,030 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785632528] [2019-10-13 23:11:31,030 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:31,030 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:11:31,030 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855775009] [2019-10-13 23:11:31,032 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:11:31,033 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:31,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:11:31,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:11:31,033 INFO L87 Difference]: Start difference. First operand 1869 states and 2755 transitions. Second operand 12 states. [2019-10-13 23:11:34,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:34,930 INFO L93 Difference]: Finished difference Result 3541 states and 5126 transitions. [2019-10-13 23:11:34,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-13 23:11:34,931 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 176 [2019-10-13 23:11:34,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:34,943 INFO L225 Difference]: With dead ends: 3541 [2019-10-13 23:11:34,944 INFO L226 Difference]: Without dead ends: 2118 [2019-10-13 23:11:34,950 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-13 23:11:34,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2019-10-13 23:11:35,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1720. [2019-10-13 23:11:35,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1720 states. [2019-10-13 23:11:35,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2480 transitions. [2019-10-13 23:11:35,074 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2480 transitions. Word has length 176 [2019-10-13 23:11:35,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:35,075 INFO L462 AbstractCegarLoop]: Abstraction has 1720 states and 2480 transitions. [2019-10-13 23:11:35,075 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:11:35,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2480 transitions. [2019-10-13 23:11:35,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-13 23:11:35,084 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:35,084 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:35,085 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:35,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:35,085 INFO L82 PathProgramCache]: Analyzing trace with hash 480344411, now seen corresponding path program 1 times [2019-10-13 23:11:35,085 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:35,086 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905658283] [2019-10-13 23:11:35,086 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:35,086 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:35,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:35,644 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-13 23:11:35,645 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905658283] [2019-10-13 23:11:35,645 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925855555] [2019-10-13 23:11:35,645 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 23:11:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:36,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 2774 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 23:11:36,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:11:36,410 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:36,410 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:11:36,791 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:36,792 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1201709415] [2019-10-13 23:11:36,825 INFO L162 IcfgInterpreter]: Started Sifa with 171 locations of interest [2019-10-13 23:11:36,825 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:11:36,837 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:11:36,844 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:11:36,845 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs