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_spec4_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:15:08,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:15:08,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:15:08,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:15:08,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:15:08,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:15:08,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:15:08,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:15:08,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:15:08,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:15:08,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:15:08,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:15:08,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:15:08,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:15:08,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:15:08,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:15:08,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:15:08,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:15:08,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:15:08,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:15:08,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:15:08,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:15:08,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:15:08,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:15:08,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:15:08,361 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:15:08,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:15:08,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:15:08,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:15:08,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:15:08,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:15:08,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:15:08,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:15:08,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:15:08,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:15:08,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:15:08,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:15:08,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:15:08,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:15:08,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:15:08,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:15:08,377 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:15:08,395 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:15:08,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:15:08,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:15:08,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:15:08,397 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:15:08,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:15:08,397 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:15:08,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:15:08,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:15:08,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:15:08,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:15:08,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:15:08,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:15:08,399 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:15:08,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:15:08,399 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:15:08,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:15:08,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:15:08,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:15:08,400 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:15:08,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:15:08,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:08,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:15:08,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:15:08,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:15:08,401 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:15:08,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:15:08,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:15:08,402 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 [2019-10-15 03:15:08,707 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:15:08,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:15:08,728 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:15:08,729 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:15:08,730 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:15:08,730 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product30.cil.c [2019-10-15 03:15:08,808 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7898b02e2/aae6d8e06a5d444eaa4c0f95b55fad04/FLAGae7a8a0f7 [2019-10-15 03:15:09,418 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:15:09,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product30.cil.c [2019-10-15 03:15:09,450 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7898b02e2/aae6d8e06a5d444eaa4c0f95b55fad04/FLAGae7a8a0f7 [2019-10-15 03:15:09,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7898b02e2/aae6d8e06a5d444eaa4c0f95b55fad04 [2019-10-15 03:15:09,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:15:09,648 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:15:09,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:09,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:15:09,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:15:09,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:09" (1/1) ... [2019-10-15 03:15:09,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b91cb92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:09, skipping insertion in model container [2019-10-15 03:15:09,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:09" (1/1) ... [2019-10-15 03:15:09,662 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:15:09,736 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:15:10,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:10,482 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:15:10,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:10,816 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:15:10,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:10 WrapperNode [2019-10-15 03:15:10,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:10,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:15:10,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:15:10,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:15:10,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:10" (1/1) ... [2019-10-15 03:15:10,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:10" (1/1) ... [2019-10-15 03:15:10,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:10" (1/1) ... [2019-10-15 03:15:10,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:10" (1/1) ... [2019-10-15 03:15:10,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:10" (1/1) ... [2019-10-15 03:15:11,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:10" (1/1) ... [2019-10-15 03:15:11,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:10" (1/1) ... [2019-10-15 03:15:11,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:15:11,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:15:11,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:15:11,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:15:11,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:15:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:15:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:15:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:15:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:15:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:15:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:15:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:15:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:15:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:15:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:15:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:15:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:15:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:15:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:15:11,124 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:15:11,125 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:15:11,125 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:15:11,125 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:15:11,125 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:15:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:15:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:15:11,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:15:11,127 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:15:11,127 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:15:11,127 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:15:11,128 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:15:11,128 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:15:11,128 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-15 03:15:11,128 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 03:15:11,129 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:15:11,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:15:11,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:15:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:15:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:15:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:15:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:15:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:15:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:15:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:15:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:15:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:15:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:15:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:15:11,132 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:15:11,132 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:15:11,132 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:15:11,132 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:15:11,132 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:15:11,133 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:15:11,133 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:15:11,133 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:15:11,133 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:15:11,133 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:15:11,133 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:15:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:15:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:15:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:15:11,135 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:15:11,135 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:15:11,135 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:15:11,135 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:15:11,136 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:15:11,136 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:15:11,136 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:15:11,136 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:15:11,136 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:15:11,137 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:15:11,137 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:15:11,137 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:15:11,137 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:15:11,137 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:15:11,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:15:11,139 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:15:11,139 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:15:11,140 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:15:11,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:15:11,140 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:15:11,140 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:15:11,141 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:15:11,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:15:11,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:15:11,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:15:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:15:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:15:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:15:11,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:15:11,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:15:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:15:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:15:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:15:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:15:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:15:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:15:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:15:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:15:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:15:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:15:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:15:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:15:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:15:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:15:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:15:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:15:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:15:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:15:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-15 03:15:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:15:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:15:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:15:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:15:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:15:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:15:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:15:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:15:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:15:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:15:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:15:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:15:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:15:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:15:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:15:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:15:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:15:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:15:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:15:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:15:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:15:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:15:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:15:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:15:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:15:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:15:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:15:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:15:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:15:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:15:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:15:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:15:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:15:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:15:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:15:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:15:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:15:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:15:11,174 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:15:11,174 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:15:11,174 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:15:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:15:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:15:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:15:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:15:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:15:11,176 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:15:11,176 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:15:11,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-15 03:15:11,176 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:15:11,176 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:15:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:15:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:15:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:15:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:15:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:15:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:15:11,178 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:15:11,178 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:15:11,178 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-15 03:15:11,178 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 03:15:11,178 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:15:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:15:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:15:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:15:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:15:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:15:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:15:11,180 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:15:11,180 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:15:11,180 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:15:11,180 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:15:11,180 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:15:11,180 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:15:11,181 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:15:11,181 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:15:11,181 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:15:11,181 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:15:11,181 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:15:11,182 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:15:11,182 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:15:11,182 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:15:11,182 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:15:11,182 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:15:11,183 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:15:11,183 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:15:11,183 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:15:11,183 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:15:11,183 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:15:11,183 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:15:11,183 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:15:11,184 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:15:11,184 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:15:11,184 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:15:11,184 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:15:11,184 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:15:11,184 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:15:11,184 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:15:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:15:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:15:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:15:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:15:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:15:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:15:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:15:11,186 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:15:11,186 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:15:11,186 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:15:11,186 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:15:11,186 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:15:11,186 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:11,186 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:15:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:15:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:15:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:15:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:15:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:15:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:15:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:15:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:15:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:15:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:15:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:15:11,189 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:15:11,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:15:11,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:15:11,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:15:16,030 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:15:16,031 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:15:16,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:16 BoogieIcfgContainer [2019-10-15 03:15:16,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:15:16,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:15:16,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:15:16,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:15:16,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:15:09" (1/3) ... [2019-10-15 03:15:16,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6da483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:16, skipping insertion in model container [2019-10-15 03:15:16,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:10" (2/3) ... [2019-10-15 03:15:16,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6da483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:16, skipping insertion in model container [2019-10-15 03:15:16,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:16" (3/3) ... [2019-10-15 03:15:16,042 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product30.cil.c [2019-10-15 03:15:16,053 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:15:16,062 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:15:16,078 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:15:16,126 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:15:16,126 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:15:16,127 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:15:16,127 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:15:16,127 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:15:16,127 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:15:16,127 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:15:16,127 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:15:16,168 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states. [2019-10-15 03:15:16,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-15 03:15:16,195 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:16,200 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] [2019-10-15 03:15:16,203 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:16,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:16,210 INFO L82 PathProgramCache]: Analyzing trace with hash 35129417, now seen corresponding path program 1 times [2019-10-15 03:15:16,218 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:16,218 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543139887] [2019-10-15 03:15:16,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:16,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:16,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:16,866 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:16,867 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543139887] [2019-10-15 03:15:16,868 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:16,868 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:15:16,868 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756875129] [2019-10-15 03:15:16,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:15:16,874 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:16,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:15:16,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:16,891 INFO L87 Difference]: Start difference. First operand 399 states. Second operand 2 states. [2019-10-15 03:15:16,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:16,956 INFO L93 Difference]: Finished difference Result 564 states and 668 transitions. [2019-10-15 03:15:16,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:15:16,958 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 129 [2019-10-15 03:15:16,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:16,977 INFO L225 Difference]: With dead ends: 564 [2019-10-15 03:15:16,978 INFO L226 Difference]: Without dead ends: 357 [2019-10-15 03:15:16,984 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:17,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2019-10-15 03:15:17,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2019-10-15 03:15:17,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2019-10-15 03:15:17,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 422 transitions. [2019-10-15 03:15:17,070 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 422 transitions. Word has length 129 [2019-10-15 03:15:17,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:17,073 INFO L462 AbstractCegarLoop]: Abstraction has 357 states and 422 transitions. [2019-10-15 03:15:17,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:15:17,073 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 422 transitions. [2019-10-15 03:15:17,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-15 03:15:17,078 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:17,079 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] [2019-10-15 03:15:17,079 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:17,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:17,080 INFO L82 PathProgramCache]: Analyzing trace with hash 732439400, now seen corresponding path program 1 times [2019-10-15 03:15:17,080 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:17,080 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814225582] [2019-10-15 03:15:17,081 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:17,081 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:17,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:17,357 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:17,358 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814225582] [2019-10-15 03:15:17,358 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:17,358 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:17,358 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415128817] [2019-10-15 03:15:17,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:17,363 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:17,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:17,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:17,364 INFO L87 Difference]: Start difference. First operand 357 states and 422 transitions. Second operand 3 states. [2019-10-15 03:15:17,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:17,436 INFO L93 Difference]: Finished difference Result 549 states and 639 transitions. [2019-10-15 03:15:17,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:17,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2019-10-15 03:15:17,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:17,450 INFO L225 Difference]: With dead ends: 549 [2019-10-15 03:15:17,450 INFO L226 Difference]: Without dead ends: 359 [2019-10-15 03:15:17,456 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:17,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2019-10-15 03:15:17,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2019-10-15 03:15:17,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2019-10-15 03:15:17,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 424 transitions. [2019-10-15 03:15:17,520 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 424 transitions. Word has length 130 [2019-10-15 03:15:17,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:17,521 INFO L462 AbstractCegarLoop]: Abstraction has 359 states and 424 transitions. [2019-10-15 03:15:17,521 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:17,521 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 424 transitions. [2019-10-15 03:15:17,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-15 03:15:17,528 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:17,529 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:17,529 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:17,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:17,529 INFO L82 PathProgramCache]: Analyzing trace with hash -368302633, now seen corresponding path program 1 times [2019-10-15 03:15:17,530 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:17,530 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628136501] [2019-10-15 03:15:17,530 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:17,530 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:17,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:17,844 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:17,845 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628136501] [2019-10-15 03:15:17,845 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:17,845 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:17,845 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796802367] [2019-10-15 03:15:17,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:17,846 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:17,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:17,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:17,847 INFO L87 Difference]: Start difference. First operand 359 states and 424 transitions. Second operand 3 states. [2019-10-15 03:15:17,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:17,897 INFO L93 Difference]: Finished difference Result 700 states and 855 transitions. [2019-10-15 03:15:17,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:17,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2019-10-15 03:15:17,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:17,901 INFO L225 Difference]: With dead ends: 700 [2019-10-15 03:15:17,901 INFO L226 Difference]: Without dead ends: 399 [2019-10-15 03:15:17,903 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:17,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-15 03:15:17,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 398. [2019-10-15 03:15:17,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2019-10-15 03:15:17,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 492 transitions. [2019-10-15 03:15:17,927 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 492 transitions. Word has length 139 [2019-10-15 03:15:17,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:17,928 INFO L462 AbstractCegarLoop]: Abstraction has 398 states and 492 transitions. [2019-10-15 03:15:17,928 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:17,928 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 492 transitions. [2019-10-15 03:15:17,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-15 03:15:17,931 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:17,932 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:17,932 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:17,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:17,932 INFO L82 PathProgramCache]: Analyzing trace with hash -979026137, now seen corresponding path program 1 times [2019-10-15 03:15:17,933 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:17,933 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626301977] [2019-10-15 03:15:17,933 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:17,933 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:17,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:18,077 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:18,077 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626301977] [2019-10-15 03:15:18,078 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:18,078 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:18,078 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445429648] [2019-10-15 03:15:18,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:18,079 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:18,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:18,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:18,079 INFO L87 Difference]: Start difference. First operand 398 states and 492 transitions. Second operand 3 states. [2019-10-15 03:15:18,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:18,109 INFO L93 Difference]: Finished difference Result 814 states and 1054 transitions. [2019-10-15 03:15:18,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:18,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2019-10-15 03:15:18,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:18,114 INFO L225 Difference]: With dead ends: 814 [2019-10-15 03:15:18,114 INFO L226 Difference]: Without dead ends: 474 [2019-10-15 03:15:18,116 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:18,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2019-10-15 03:15:18,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 473. [2019-10-15 03:15:18,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2019-10-15 03:15:18,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 622 transitions. [2019-10-15 03:15:18,141 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 622 transitions. Word has length 140 [2019-10-15 03:15:18,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:18,141 INFO L462 AbstractCegarLoop]: Abstraction has 473 states and 622 transitions. [2019-10-15 03:15:18,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:18,142 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 622 transitions. [2019-10-15 03:15:18,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-15 03:15:18,145 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:18,146 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:18,146 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:18,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:18,146 INFO L82 PathProgramCache]: Analyzing trace with hash -439286021, now seen corresponding path program 1 times [2019-10-15 03:15:18,147 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:18,147 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212701290] [2019-10-15 03:15:18,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:18,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:18,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:18,978 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:15:18,979 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212701290] [2019-10-15 03:15:18,979 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:18,980 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-15 03:15:18,980 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627474375] [2019-10-15 03:15:18,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-15 03:15:18,981 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:18,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-15 03:15:18,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2019-10-15 03:15:18,984 INFO L87 Difference]: Start difference. First operand 473 states and 622 transitions. Second operand 21 states. [2019-10-15 03:15:27,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:27,334 INFO L93 Difference]: Finished difference Result 871 states and 1082 transitions. [2019-10-15 03:15:27,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-15 03:15:27,334 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 143 [2019-10-15 03:15:27,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:27,342 INFO L225 Difference]: With dead ends: 871 [2019-10-15 03:15:27,342 INFO L226 Difference]: Without dead ends: 675 [2019-10-15 03:15:27,344 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2019-10-15 03:15:27,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2019-10-15 03:15:27,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 668. [2019-10-15 03:15:27,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2019-10-15 03:15:27,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 849 transitions. [2019-10-15 03:15:27,398 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 849 transitions. Word has length 143 [2019-10-15 03:15:27,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:27,401 INFO L462 AbstractCegarLoop]: Abstraction has 668 states and 849 transitions. [2019-10-15 03:15:27,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-15 03:15:27,401 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 849 transitions. [2019-10-15 03:15:27,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-15 03:15:27,411 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:27,411 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:27,411 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:27,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:27,412 INFO L82 PathProgramCache]: Analyzing trace with hash 568749428, now seen corresponding path program 1 times [2019-10-15 03:15:27,412 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:27,412 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021771560] [2019-10-15 03:15:27,412 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:27,412 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:27,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:28,000 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:15:28,000 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021771560] [2019-10-15 03:15:28,002 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:28,002 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-15 03:15:28,002 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551638715] [2019-10-15 03:15:28,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-15 03:15:28,005 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:28,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-15 03:15:28,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2019-10-15 03:15:28,006 INFO L87 Difference]: Start difference. First operand 668 states and 849 transitions. Second operand 23 states. [2019-10-15 03:15:30,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:30,091 INFO L93 Difference]: Finished difference Result 746 states and 939 transitions. [2019-10-15 03:15:30,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-15 03:15:30,092 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 149 [2019-10-15 03:15:30,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:30,102 INFO L225 Difference]: With dead ends: 746 [2019-10-15 03:15:30,102 INFO L226 Difference]: Without dead ends: 710 [2019-10-15 03:15:30,103 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 03:15:30,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2019-10-15 03:15:30,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 705. [2019-10-15 03:15:30,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2019-10-15 03:15:30,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 886 transitions. [2019-10-15 03:15:30,150 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 886 transitions. Word has length 149 [2019-10-15 03:15:30,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:30,153 INFO L462 AbstractCegarLoop]: Abstraction has 705 states and 886 transitions. [2019-10-15 03:15:30,153 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-15 03:15:30,153 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 886 transitions. [2019-10-15 03:15:30,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2019-10-15 03:15:30,159 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:30,159 INFO L380 BasicCegarLoop]: trace histogram [4, 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, 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] [2019-10-15 03:15:30,160 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:30,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:30,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1113073814, now seen corresponding path program 1 times [2019-10-15 03:15:30,160 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:30,161 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586537058] [2019-10-15 03:15:30,161 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:30,161 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:30,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:30,952 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 03:15:30,952 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586537058] [2019-10-15 03:15:30,952 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:30,953 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-15 03:15:30,953 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832633196] [2019-10-15 03:15:30,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-15 03:15:30,954 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:30,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-15 03:15:30,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2019-10-15 03:15:30,955 INFO L87 Difference]: Start difference. First operand 705 states and 886 transitions. Second operand 28 states. [2019-10-15 03:15:40,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:40,175 INFO L93 Difference]: Finished difference Result 1362 states and 1648 transitions. [2019-10-15 03:15:40,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-10-15 03:15:40,175 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 257 [2019-10-15 03:15:40,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:40,182 INFO L225 Difference]: With dead ends: 1362 [2019-10-15 03:15:40,182 INFO L226 Difference]: Without dead ends: 1159 [2019-10-15 03:15:40,184 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=315, Invalid=3717, Unknown=0, NotChecked=0, Total=4032 [2019-10-15 03:15:40,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2019-10-15 03:15:40,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1088. [2019-10-15 03:15:40,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2019-10-15 03:15:40,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1317 transitions. [2019-10-15 03:15:40,271 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1317 transitions. Word has length 257 [2019-10-15 03:15:40,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:40,273 INFO L462 AbstractCegarLoop]: Abstraction has 1088 states and 1317 transitions. [2019-10-15 03:15:40,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-15 03:15:40,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1317 transitions. [2019-10-15 03:15:40,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2019-10-15 03:15:40,281 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:40,282 INFO L380 BasicCegarLoop]: trace histogram [4, 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, 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] [2019-10-15 03:15:40,283 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:40,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:40,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1461416115, now seen corresponding path program 1 times [2019-10-15 03:15:40,284 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:40,284 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74167627] [2019-10-15 03:15:40,284 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:40,284 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:40,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:40,585 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 03:15:40,586 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74167627] [2019-10-15 03:15:40,586 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:40,586 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 03:15:40,586 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164438334] [2019-10-15 03:15:40,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 03:15:40,588 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:40,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 03:15:40,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:15:40,588 INFO L87 Difference]: Start difference. First operand 1088 states and 1317 transitions. Second operand 10 states. [2019-10-15 03:15:40,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:40,681 INFO L93 Difference]: Finished difference Result 1579 states and 1853 transitions. [2019-10-15 03:15:40,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:15:40,682 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 261 [2019-10-15 03:15:40,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:40,689 INFO L225 Difference]: With dead ends: 1579 [2019-10-15 03:15:40,689 INFO L226 Difference]: Without dead ends: 1128 [2019-10-15 03:15:40,692 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:15:40,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2019-10-15 03:15:40,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1096. [2019-10-15 03:15:40,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1096 states. [2019-10-15 03:15:40,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1323 transitions. [2019-10-15 03:15:40,818 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1323 transitions. Word has length 261 [2019-10-15 03:15:40,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:40,819 INFO L462 AbstractCegarLoop]: Abstraction has 1096 states and 1323 transitions. [2019-10-15 03:15:40,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 03:15:40,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1323 transitions. [2019-10-15 03:15:40,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2019-10-15 03:15:40,826 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:40,827 INFO L380 BasicCegarLoop]: trace histogram [4, 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, 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] [2019-10-15 03:15:40,827 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:40,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:40,827 INFO L82 PathProgramCache]: Analyzing trace with hash 820851048, now seen corresponding path program 1 times [2019-10-15 03:15:40,828 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:40,828 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682952698] [2019-10-15 03:15:40,828 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:40,828 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:40,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:41,216 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2019-10-15 03:15:41,216 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682952698] [2019-10-15 03:15:41,217 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:41,217 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 03:15:41,218 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450366176] [2019-10-15 03:15:41,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 03:15:41,220 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:41,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 03:15:41,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-15 03:15:41,221 INFO L87 Difference]: Start difference. First operand 1096 states and 1323 transitions. Second operand 11 states. [2019-10-15 03:15:43,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:43,750 INFO L93 Difference]: Finished difference Result 1487 states and 1712 transitions. [2019-10-15 03:15:43,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:15:43,751 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 283 [2019-10-15 03:15:43,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:43,762 INFO L225 Difference]: With dead ends: 1487 [2019-10-15 03:15:43,762 INFO L226 Difference]: Without dead ends: 1156 [2019-10-15 03:15:43,768 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-15 03:15:43,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2019-10-15 03:15:43,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 956. [2019-10-15 03:15:43,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 956 states. [2019-10-15 03:15:43,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1145 transitions. [2019-10-15 03:15:43,919 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1145 transitions. Word has length 283 [2019-10-15 03:15:43,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:43,921 INFO L462 AbstractCegarLoop]: Abstraction has 956 states and 1145 transitions. [2019-10-15 03:15:43,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 03:15:43,921 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1145 transitions. [2019-10-15 03:15:43,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2019-10-15 03:15:43,927 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:43,928 INFO L380 BasicCegarLoop]: trace histogram [4, 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, 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] [2019-10-15 03:15:43,928 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:43,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:43,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1616435440, now seen corresponding path program 1 times [2019-10-15 03:15:43,929 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:43,929 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721301416] [2019-10-15 03:15:43,929 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:43,929 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:43,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:45,159 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 8 proven. 14 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-15 03:15:45,160 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721301416] [2019-10-15 03:15:45,160 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26386151] [2019-10-15 03:15:45,160 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