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_spec9_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:13:32,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:13:32,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:13:32,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:13:32,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:13:32,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:13:32,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:13:32,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:13:32,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:13:32,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:13:32,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:13:32,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:13:32,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:13:32,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:13:32,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:13:32,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:13:32,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:13:32,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:13:32,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:13:32,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:13:32,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:13:32,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:13:32,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:13:32,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:13:32,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:13:32,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:13:32,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:13:32,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:13:32,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:13:32,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:13:32,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:13:32,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:13:32,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:13:32,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:13:32,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:13:32,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:13:32,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:13:32,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:13:32,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:13:32,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:13:32,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:13:32,578 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 23:13:32,600 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:13:32,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:13:32,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:13:32,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:13:32,603 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:13:32,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:13:32,603 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:13:32,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:13:32,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:13:32,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:13:32,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:13:32,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:13:32,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:13:32,606 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:13:32,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:13:32,606 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:13:32,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:13:32,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:13:32,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:13:32,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:13:32,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:13:32,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:13:32,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:13:32,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:13:32,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:13:32,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:13:32,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:13:32,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:13:32,609 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 23:13:32,887 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:13:32,906 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:13:32,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:13:32,912 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:13:32,912 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:13:32,913 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product32.cil.c [2019-10-13 23:13:32,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35fbd9d63/bc358c3d573046b88d84edae4032960b/FLAGc1cb12b15 [2019-10-13 23:13:33,611 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:13:33,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product32.cil.c [2019-10-13 23:13:33,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35fbd9d63/bc358c3d573046b88d84edae4032960b/FLAGc1cb12b15 [2019-10-13 23:13:33,818 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35fbd9d63/bc358c3d573046b88d84edae4032960b [2019-10-13 23:13:33,827 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:13:33,828 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:13:33,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:13:33,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:13:33,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:13:33,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:13:33" (1/1) ... [2019-10-13 23:13:33,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377a6792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:33, skipping insertion in model container [2019-10-13 23:13:33,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:13:33" (1/1) ... [2019-10-13 23:13:33,845 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:13:33,911 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:13:34,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:13:34,751 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:13:34,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:13:34,990 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:13:34,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34 WrapperNode [2019-10-13 23:13:34,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:13:34,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:13:34,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:13:34,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:13:35,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (1/1) ... [2019-10-13 23:13:35,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (1/1) ... [2019-10-13 23:13:35,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (1/1) ... [2019-10-13 23:13:35,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (1/1) ... [2019-10-13 23:13:35,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (1/1) ... [2019-10-13 23:13:35,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (1/1) ... [2019-10-13 23:13:35,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (1/1) ... [2019-10-13 23:13:35,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:13:35,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:13:35,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:13:35,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:13:35,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (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 23:13:35,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:13:35,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:13:35,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:13:35,375 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:13:35,375 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:13:35,377 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:13:35,377 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:13:35,378 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:13:35,378 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:13:35,378 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:13:35,379 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:13:35,380 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:13:35,380 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:13:35,381 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:13:35,381 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:13:35,381 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:13:35,384 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:13:35,384 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:13:35,384 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:13:35,385 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:13:35,385 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:13:35,385 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:13:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:13:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:13:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:13:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:13:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:13:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:13:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:13:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:13:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:13:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:13:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:13:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:13:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:13:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:13:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:13:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:13:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:13:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:13:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:13:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:13:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:13:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:13:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:13:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:13:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:13:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:13:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:13:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:13:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:13:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:13:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:13:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:13:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:13:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:13:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:13:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:13:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:13:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:13:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:13:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:13:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:13:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:13:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:13:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:13:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:13:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:13:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:13:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:13:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:13:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:13:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:13:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:13:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:13:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:13:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:13:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:13:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:13:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:13:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:13:35,405 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:13:35,405 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:13:35,405 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:13:35,405 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:13:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:13:35,406 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:13:35,407 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:13:35,407 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:13:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:13:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 23:13:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 23:13:35,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:13:35,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:13:35,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:13:35,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:13:35,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:13:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:13:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:13:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:13:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:13:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:13:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:13:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:13:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:13:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:13:35,412 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:13:35,412 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:13:35,412 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:13:35,413 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:13:35,413 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:13:35,413 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:13:35,413 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:13:35,413 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:13:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:13:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:13:35,414 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:13:35,415 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:13:35,415 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:13:35,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:13:35,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:13:35,417 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:13:35,417 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:13:35,417 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:13:35,419 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:13:35,419 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:13:35,419 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:13:35,420 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:13:35,420 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:13:35,420 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:13:35,420 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:13:35,421 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:13:35,421 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:13:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:13:35,427 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:13:35,427 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:13:35,427 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:13:35,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:13:35,429 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:13:35,429 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:13:35,429 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:13:35,429 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:13:35,430 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:13:35,431 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:13:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:13:35,438 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:13:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:13:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:13:35,439 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:13:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:13:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:13:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:13:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:13:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:13:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:13:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:13:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:13:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:13:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:13:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:13:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:13:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:13:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:13:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:13:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:13:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:13:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:13:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:13:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:13:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:13:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:13:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:13:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:13:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:13:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:13:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:13:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:13:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:13:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:13:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:13:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:13:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:13:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 23:13:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:13:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:13:35,448 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:13:35,448 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:13:35,448 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:13:35,449 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:13:35,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 23:13:35,449 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:13:35,449 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:13:35,450 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:13:35,450 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:13:35,450 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:13:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:13:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:13:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:13:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:13:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:13:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:13:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:13:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:13:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:13:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:13:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:13:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:13:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:13:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:13:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:13:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:13:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:13:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:13:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:13:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:13:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:13:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:13:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:13:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:13:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:13:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:13:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:13:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:13:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:13:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:13:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:13:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:13:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:13:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:13:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:13:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:13:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:13:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:13:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:13:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:13:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:13:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:13:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:13:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:13:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:13:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:13:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:13:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:13:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:13:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:13:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:13:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:13:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:13:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:13:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:13:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:13:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:13:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:13:40,373 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:13:40,373 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:13:40,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:13:40 BoogieIcfgContainer [2019-10-13 23:13:40,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:13:40,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:13:40,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:13:40,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:13:40,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:13:33" (1/3) ... [2019-10-13 23:13:40,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50404924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:13:40, skipping insertion in model container [2019-10-13 23:13:40,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (2/3) ... [2019-10-13 23:13:40,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50404924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:13:40, skipping insertion in model container [2019-10-13 23:13:40,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:13:40" (3/3) ... [2019-10-13 23:13:40,383 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product32.cil.c [2019-10-13 23:13:40,393 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:13:40,402 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:13:40,413 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:13:40,442 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:13:40,442 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:13:40,442 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:13:40,443 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:13:40,443 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:13:40,443 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:13:40,443 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:13:40,443 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:13:40,479 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states. [2019-10-13 23:13:40,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-13 23:13:40,496 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:40,498 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:13:40,500 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:40,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:40,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1585890697, now seen corresponding path program 1 times [2019-10-13 23:13:40,515 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:40,515 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675344838] [2019-10-13 23:13:40,516 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:40,516 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:40,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:41,141 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:41,142 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675344838] [2019-10-13 23:13:41,143 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:41,143 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:13:41,144 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007768359] [2019-10-13 23:13:41,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:13:41,151 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:41,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:13:41,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:13:41,169 INFO L87 Difference]: Start difference. First operand 447 states. Second operand 2 states. [2019-10-13 23:13:41,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:41,284 INFO L93 Difference]: Finished difference Result 634 states and 756 transitions. [2019-10-13 23:13:41,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:13:41,286 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-10-13 23:13:41,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:41,323 INFO L225 Difference]: With dead ends: 634 [2019-10-13 23:13:41,323 INFO L226 Difference]: Without dead ends: 399 [2019-10-13 23:13:41,334 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 23:13:41,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-13 23:13:41,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2019-10-13 23:13:41,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-10-13 23:13:41,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 472 transitions. [2019-10-13 23:13:41,436 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 472 transitions. Word has length 132 [2019-10-13 23:13:41,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:41,440 INFO L462 AbstractCegarLoop]: Abstraction has 399 states and 472 transitions. [2019-10-13 23:13:41,441 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:13:41,441 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 472 transitions. [2019-10-13 23:13:41,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-13 23:13:41,451 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:41,454 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:13:41,455 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:41,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:41,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1241260819, now seen corresponding path program 1 times [2019-10-13 23:13:41,455 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:41,456 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138544446] [2019-10-13 23:13:41,456 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:41,456 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:41,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:41,765 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:41,765 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138544446] [2019-10-13 23:13:41,765 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:41,766 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:41,766 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154358224] [2019-10-13 23:13:41,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:41,770 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:41,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:41,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:41,771 INFO L87 Difference]: Start difference. First operand 399 states and 472 transitions. Second operand 3 states. [2019-10-13 23:13:41,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:41,912 INFO L93 Difference]: Finished difference Result 619 states and 724 transitions. [2019-10-13 23:13:41,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:41,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-10-13 23:13:41,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:41,917 INFO L225 Difference]: With dead ends: 619 [2019-10-13 23:13:41,917 INFO L226 Difference]: Without dead ends: 401 [2019-10-13 23:13:41,922 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 23:13:41,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2019-10-13 23:13:41,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2019-10-13 23:13:41,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2019-10-13 23:13:41,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 474 transitions. [2019-10-13 23:13:41,960 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 474 transitions. Word has length 133 [2019-10-13 23:13:41,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:41,960 INFO L462 AbstractCegarLoop]: Abstraction has 401 states and 474 transitions. [2019-10-13 23:13:41,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:41,960 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 474 transitions. [2019-10-13 23:13:41,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-13 23:13:41,964 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:41,964 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:41,965 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:41,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:41,965 INFO L82 PathProgramCache]: Analyzing trace with hash 349190620, now seen corresponding path program 1 times [2019-10-13 23:13:41,965 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:41,966 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690785033] [2019-10-13 23:13:41,966 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:41,966 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:41,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:42,135 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:42,136 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690785033] [2019-10-13 23:13:42,136 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:42,136 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:42,136 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118410293] [2019-10-13 23:13:42,137 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:42,137 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:42,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:42,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:42,138 INFO L87 Difference]: Start difference. First operand 401 states and 474 transitions. Second operand 3 states. [2019-10-13 23:13:42,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:42,196 INFO L93 Difference]: Finished difference Result 786 states and 958 transitions. [2019-10-13 23:13:42,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:42,197 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-13 23:13:42,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:42,203 INFO L225 Difference]: With dead ends: 786 [2019-10-13 23:13:42,204 INFO L226 Difference]: Without dead ends: 443 [2019-10-13 23:13:42,206 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 23:13:42,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2019-10-13 23:13:42,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 442. [2019-10-13 23:13:42,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-10-13 23:13:42,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 545 transitions. [2019-10-13 23:13:42,252 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 545 transitions. Word has length 142 [2019-10-13 23:13:42,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:42,254 INFO L462 AbstractCegarLoop]: Abstraction has 442 states and 545 transitions. [2019-10-13 23:13:42,254 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:42,255 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 545 transitions. [2019-10-13 23:13:42,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-13 23:13:42,262 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:42,262 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:42,262 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:42,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:42,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1493521094, now seen corresponding path program 1 times [2019-10-13 23:13:42,265 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:42,265 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768485385] [2019-10-13 23:13:42,265 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:42,265 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:42,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:42,545 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:42,546 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768485385] [2019-10-13 23:13:42,546 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:42,547 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:42,547 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552887510] [2019-10-13 23:13:42,548 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:42,549 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:42,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:42,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:42,550 INFO L87 Difference]: Start difference. First operand 442 states and 545 transitions. Second operand 3 states. [2019-10-13 23:13:42,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:42,600 INFO L93 Difference]: Finished difference Result 906 states and 1166 transitions. [2019-10-13 23:13:42,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:42,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2019-10-13 23:13:42,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:42,609 INFO L225 Difference]: With dead ends: 906 [2019-10-13 23:13:42,609 INFO L226 Difference]: Without dead ends: 522 [2019-10-13 23:13:42,612 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 23:13:42,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2019-10-13 23:13:42,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 521. [2019-10-13 23:13:42,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2019-10-13 23:13:42,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 681 transitions. [2019-10-13 23:13:42,657 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 681 transitions. Word has length 143 [2019-10-13 23:13:42,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:42,657 INFO L462 AbstractCegarLoop]: Abstraction has 521 states and 681 transitions. [2019-10-13 23:13:42,658 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:42,658 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 681 transitions. [2019-10-13 23:13:42,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 23:13:42,661 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:42,661 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:42,662 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:42,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:42,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1234658247, now seen corresponding path program 1 times [2019-10-13 23:13:42,662 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:42,663 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511576186] [2019-10-13 23:13:42,663 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:42,663 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:42,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:42,947 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 23:13:42,948 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511576186] [2019-10-13 23:13:42,948 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:42,948 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:42,948 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078115584] [2019-10-13 23:13:42,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:42,949 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:42,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:42,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:42,950 INFO L87 Difference]: Start difference. First operand 521 states and 681 transitions. Second operand 3 states. [2019-10-13 23:13:43,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:43,009 INFO L93 Difference]: Finished difference Result 808 states and 1017 transitions. [2019-10-13 23:13:43,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:43,010 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-13 23:13:43,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:43,015 INFO L225 Difference]: With dead ends: 808 [2019-10-13 23:13:43,015 INFO L226 Difference]: Without dead ends: 602 [2019-10-13 23:13:43,016 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 23:13:43,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-10-13 23:13:43,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 601. [2019-10-13 23:13:43,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-10-13 23:13:43,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 772 transitions. [2019-10-13 23:13:43,052 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 772 transitions. Word has length 146 [2019-10-13 23:13:43,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:43,053 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 772 transitions. [2019-10-13 23:13:43,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:43,053 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 772 transitions. [2019-10-13 23:13:43,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2019-10-13 23:13:43,058 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:43,059 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:43,059 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:43,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:43,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1845528470, now seen corresponding path program 1 times [2019-10-13 23:13:43,060 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:43,060 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101877113] [2019-10-13 23:13:43,060 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:43,060 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:43,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:43,472 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:43,473 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101877113] [2019-10-13 23:13:43,474 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:43,474 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 23:13:43,474 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520415205] [2019-10-13 23:13:43,475 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:13:43,476 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:43,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:13:43,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:13:43,476 INFO L87 Difference]: Start difference. First operand 601 states and 772 transitions. Second operand 14 states. [2019-10-13 23:13:47,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:47,980 INFO L93 Difference]: Finished difference Result 1384 states and 1755 transitions. [2019-10-13 23:13:47,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:13:47,981 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 257 [2019-10-13 23:13:47,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:47,993 INFO L225 Difference]: With dead ends: 1384 [2019-10-13 23:13:47,993 INFO L226 Difference]: Without dead ends: 1120 [2019-10-13 23:13:47,996 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-13 23:13:47,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2019-10-13 23:13:48,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1109. [2019-10-13 23:13:48,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1109 states. [2019-10-13 23:13:48,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1438 transitions. [2019-10-13 23:13:48,142 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1438 transitions. Word has length 257 [2019-10-13 23:13:48,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:48,143 INFO L462 AbstractCegarLoop]: Abstraction has 1109 states and 1438 transitions. [2019-10-13 23:13:48,143 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:13:48,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1438 transitions. [2019-10-13 23:13:48,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-10-13 23:13:48,151 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:48,151 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:48,151 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:48,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:48,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1039461052, now seen corresponding path program 1 times [2019-10-13 23:13:48,152 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:48,152 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823026142] [2019-10-13 23:13:48,153 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:48,153 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:48,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:48,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:48,370 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:48,370 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823026142] [2019-10-13 23:13:48,371 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:48,371 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:48,371 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913633940] [2019-10-13 23:13:48,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:48,372 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:48,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:48,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:48,373 INFO L87 Difference]: Start difference. First operand 1109 states and 1438 transitions. Second operand 3 states. [2019-10-13 23:13:48,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:48,441 INFO L93 Difference]: Finished difference Result 2458 states and 3331 transitions. [2019-10-13 23:13:48,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:48,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2019-10-13 23:13:48,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:48,451 INFO L225 Difference]: With dead ends: 2458 [2019-10-13 23:13:48,451 INFO L226 Difference]: Without dead ends: 1407 [2019-10-13 23:13:48,455 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 23:13:48,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2019-10-13 23:13:48,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1405. [2019-10-13 23:13:48,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1405 states. [2019-10-13 23:13:48,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1946 transitions. [2019-10-13 23:13:48,538 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1946 transitions. Word has length 273 [2019-10-13 23:13:48,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:48,539 INFO L462 AbstractCegarLoop]: Abstraction has 1405 states and 1946 transitions. [2019-10-13 23:13:48,539 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:48,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1946 transitions. [2019-10-13 23:13:48,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-10-13 23:13:48,549 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:48,549 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:48,550 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:48,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:48,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1854298274, now seen corresponding path program 1 times [2019-10-13 23:13:48,550 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:48,551 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568605822] [2019-10-13 23:13:48,551 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:48,551 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:48,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:48,796 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:48,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568605822] [2019-10-13 23:13:48,796 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:48,797 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:48,797 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893126356] [2019-10-13 23:13:48,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:48,798 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:48,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:48,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:48,799 INFO L87 Difference]: Start difference. First operand 1405 states and 1946 transitions. Second operand 3 states. [2019-10-13 23:13:48,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:48,934 INFO L93 Difference]: Finished difference Result 3322 states and 4815 transitions. [2019-10-13 23:13:48,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:48,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 274 [2019-10-13 23:13:48,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:48,950 INFO L225 Difference]: With dead ends: 3322 [2019-10-13 23:13:48,950 INFO L226 Difference]: Without dead ends: 1975 [2019-10-13 23:13:48,957 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 23:13:48,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2019-10-13 23:13:49,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1973. [2019-10-13 23:13:49,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1973 states. [2019-10-13 23:13:49,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 2914 transitions. [2019-10-13 23:13:49,125 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 2914 transitions. Word has length 274 [2019-10-13 23:13:49,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:49,125 INFO L462 AbstractCegarLoop]: Abstraction has 1973 states and 2914 transitions. [2019-10-13 23:13:49,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:49,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 2914 transitions. [2019-10-13 23:13:49,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-10-13 23:13:49,138 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:49,138 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:49,139 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:49,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:49,139 INFO L82 PathProgramCache]: Analyzing trace with hash -51417956, now seen corresponding path program 1 times [2019-10-13 23:13:49,139 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:49,140 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831130046] [2019-10-13 23:13:49,140 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:49,140 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:49,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:49,335 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:49,336 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831130046] [2019-10-13 23:13:49,336 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:49,337 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:49,337 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454061901] [2019-10-13 23:13:49,337 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:49,338 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:49,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:49,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:49,338 INFO L87 Difference]: Start difference. First operand 1973 states and 2914 transitions. Second operand 3 states. [2019-10-13 23:13:49,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:49,495 INFO L93 Difference]: Finished difference Result 4978 states and 7639 transitions. [2019-10-13 23:13:49,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:49,495 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 275 [2019-10-13 23:13:49,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:49,519 INFO L225 Difference]: With dead ends: 4978 [2019-10-13 23:13:49,520 INFO L226 Difference]: Without dead ends: 3063 [2019-10-13 23:13:49,529 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 23:13:49,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2019-10-13 23:13:49,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 3061. [2019-10-13 23:13:49,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3061 states. [2019-10-13 23:13:49,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3061 states to 3061 states and 4754 transitions. [2019-10-13 23:13:49,766 INFO L78 Accepts]: Start accepts. Automaton has 3061 states and 4754 transitions. Word has length 275 [2019-10-13 23:13:49,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:49,766 INFO L462 AbstractCegarLoop]: Abstraction has 3061 states and 4754 transitions. [2019-10-13 23:13:49,766 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:49,767 INFO L276 IsEmpty]: Start isEmpty. Operand 3061 states and 4754 transitions. [2019-10-13 23:13:49,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2019-10-13 23:13:49,784 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:49,786 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:49,787 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:49,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:49,787 INFO L82 PathProgramCache]: Analyzing trace with hash -924111490, now seen corresponding path program 1 times [2019-10-13 23:13:49,787 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:49,787 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110093962] [2019-10-13 23:13:49,788 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:49,788 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:49,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:49,960 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:49,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110093962] [2019-10-13 23:13:49,961 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:49,962 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:49,962 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165340165] [2019-10-13 23:13:49,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:49,963 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:49,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:49,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:49,964 INFO L87 Difference]: Start difference. First operand 3061 states and 4754 transitions. Second operand 3 states. [2019-10-13 23:13:50,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:50,175 INFO L93 Difference]: Finished difference Result 8274 states and 13191 transitions. [2019-10-13 23:13:50,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:50,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2019-10-13 23:13:50,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:50,217 INFO L225 Difference]: With dead ends: 8274 [2019-10-13 23:13:50,218 INFO L226 Difference]: Without dead ends: 5271 [2019-10-13 23:13:50,242 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:50,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5271 states. [2019-10-13 23:13:50,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5271 to 5269. [2019-10-13 23:13:50,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5269 states. [2019-10-13 23:13:50,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5269 states to 5269 states and 8434 transitions. [2019-10-13 23:13:50,709 INFO L78 Accepts]: Start accepts. Automaton has 5269 states and 8434 transitions. Word has length 276 [2019-10-13 23:13:50,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:50,709 INFO L462 AbstractCegarLoop]: Abstraction has 5269 states and 8434 transitions. [2019-10-13 23:13:50,710 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:50,710 INFO L276 IsEmpty]: Start isEmpty. Operand 5269 states and 8434 transitions. [2019-10-13 23:13:50,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2019-10-13 23:13:50,755 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:50,755 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:50,756 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:50,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:50,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1544987012, now seen corresponding path program 1 times [2019-10-13 23:13:50,756 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:50,757 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009042005] [2019-10-13 23:13:50,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:50,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:50,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:50,989 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:50,989 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009042005] [2019-10-13 23:13:50,990 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:50,990 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:50,990 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559103437] [2019-10-13 23:13:50,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:50,991 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:50,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:50,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:50,992 INFO L87 Difference]: Start difference. First operand 5269 states and 8434 transitions. Second operand 3 states. [2019-10-13 23:13:51,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:51,362 INFO L93 Difference]: Finished difference Result 14578 states and 23719 transitions. [2019-10-13 23:13:51,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:51,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 277 [2019-10-13 23:13:51,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:51,429 INFO L225 Difference]: With dead ends: 14578 [2019-10-13 23:13:51,429 INFO L226 Difference]: Without dead ends: 9367 [2019-10-13 23:13:51,454 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 23:13:51,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9367 states. [2019-10-13 23:13:52,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9367 to 9365. [2019-10-13 23:13:52,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9365 states. [2019-10-13 23:13:52,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9365 states to 9365 states and 15218 transitions. [2019-10-13 23:13:52,148 INFO L78 Accepts]: Start accepts. Automaton has 9365 states and 15218 transitions. Word has length 277 [2019-10-13 23:13:52,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:52,148 INFO L462 AbstractCegarLoop]: Abstraction has 9365 states and 15218 transitions. [2019-10-13 23:13:52,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:52,148 INFO L276 IsEmpty]: Start isEmpty. Operand 9365 states and 15218 transitions. [2019-10-13 23:13:52,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2019-10-13 23:13:52,203 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:52,203 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:52,203 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:52,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:52,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1944124700, now seen corresponding path program 1 times [2019-10-13 23:13:52,204 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:52,204 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038119230] [2019-10-13 23:13:52,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:52,205 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:52,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:52,874 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:52,874 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038119230] [2019-10-13 23:13:52,874 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520808191] [2019-10-13 23:13:52,874 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 23:13:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:53,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 3862 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:13:53,641 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:13:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-13 23:13:53,804 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:13:54,325 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:54,325 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1597318332] [2019-10-13 23:13:54,360 INFO L162 IcfgInterpreter]: Started Sifa with 225 locations of interest [2019-10-13 23:13:54,361 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:13:54,369 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:13:54,377 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:13:54,378 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs