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_spec7_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:04:21,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:04:21,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:04:21,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:04:21,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:04:21,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:04:21,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:04:21,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:04:21,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:04:21,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:04:21,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:04:21,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:04:21,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:04:21,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:04:21,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:04:21,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:04:21,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:04:21,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:04:21,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:04:21,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:04:21,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:04:21,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:04:21,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:04:21,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:04:21,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:04:21,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:04:21,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:04:21,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:04:21,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:04:21,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:04:21,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:04:21,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:04:21,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:04:21,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:04:21,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:04:21,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:04:21,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:04:21,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:04:21,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:04:21,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:04:21,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:04:21,287 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 [2019-10-07 15:04:21,303 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:04:21,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:04:21,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:04:21,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:04:21,305 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:04:21,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:04:21,306 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:04:21,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:04:21,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:04:21,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:04:21,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:04:21,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:04:21,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:04:21,307 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:04:21,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:04:21,307 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:04:21,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:04:21,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:04:21,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:04:21,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:04:21,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:04:21,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:04:21,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:04:21,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:04:21,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:04:21,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:04:21,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:04:21,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:04:21,310 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 [2019-10-07 15:04:21,594 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:04:21,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:04:21,613 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:04:21,614 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:04:21,615 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:04:21,615 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product32.cil.c [2019-10-07 15:04:21,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f186e1b6/c24c72a983c942849ca98a5ce75ab93d/FLAGa66f44f94 [2019-10-07 15:04:22,298 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:04:22,301 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product32.cil.c [2019-10-07 15:04:22,321 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f186e1b6/c24c72a983c942849ca98a5ce75ab93d/FLAGa66f44f94 [2019-10-07 15:04:22,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f186e1b6/c24c72a983c942849ca98a5ce75ab93d [2019-10-07 15:04:22,521 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:04:22,522 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:04:22,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:04:22,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:04:22,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:04:22,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:04:22" (1/1) ... [2019-10-07 15:04:22,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@becdb71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:22, skipping insertion in model container [2019-10-07 15:04:22,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:04:22" (1/1) ... [2019-10-07 15:04:22,534 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:04:22,628 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:04:23,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:04:23,522 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:04:23,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:04:23,842 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:04:23,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:23 WrapperNode [2019-10-07 15:04:23,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:04:23,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:04:23,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:04:23,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:04:23,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:23" (1/1) ... [2019-10-07 15:04:23,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:23" (1/1) ... [2019-10-07 15:04:23,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:23" (1/1) ... [2019-10-07 15:04:23,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:23" (1/1) ... [2019-10-07 15:04:23,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:23" (1/1) ... [2019-10-07 15:04:24,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:23" (1/1) ... [2019-10-07 15:04:24,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:23" (1/1) ... [2019-10-07 15:04:24,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:04:24,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:04:24,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:04:24,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:04:24,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:23" (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 [2019-10-07 15:04:24,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:04:24,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:04:24,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:04:24,147 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:04:24,147 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 15:04:24,149 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 15:04:24,149 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:04:24,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:04:24,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:04:24,150 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:04:24,150 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:04:24,151 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:04:24,151 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:04:24,151 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:04:24,152 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:04:24,152 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:04:24,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:04:24,155 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:04:24,155 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:04:24,155 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:04:24,155 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 15:04:24,156 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:04:24,156 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:04:24,156 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:04:24,156 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 15:04:24,157 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 15:04:24,157 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:04:24,157 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:04:24,157 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:04:24,157 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:04:24,157 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:04:24,157 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:04:24,158 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:04:24,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:04:24,158 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:04:24,159 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 15:04:24,159 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 15:04:24,159 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 15:04:24,159 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 15:04:24,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-07 15:04:24,159 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:04:24,159 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:04:24,160 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:04:24,160 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:04:24,160 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:04:24,160 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:04:24,160 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:04:24,160 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:04:24,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:04:24,161 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:04:24,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:04:24,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:04:24,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:04:24,162 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:04:24,162 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:04:24,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:04:24,162 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:04:24,162 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:04:24,162 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:04:24,163 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:04:24,163 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:04:24,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:04:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:04:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:04:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:04:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:04:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:04:24,164 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:04:24,165 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:04:24,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:04:24,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:04:24,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:04:24,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:04:24,166 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:04:24,166 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:04:24,167 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:04:24,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:04:24,168 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:04:24,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:04:24,168 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:04:24,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:04:24,169 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:04:24,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:04:24,169 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:04:24,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:04:24,170 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:04:24,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:04:24,171 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:04:24,171 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:04:24,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:04:24,171 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:04:24,172 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:04:24,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:04:24,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:04:24,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:04:24,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:04:24,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:04:24,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:04:24,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:04:24,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:04:24,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:04:24,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:04:24,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:04:24,173 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:04:24,174 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:04:24,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:04:24,174 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:04:24,174 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:04:24,174 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:04:24,174 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:04:24,174 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:04:24,175 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:04:24,175 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:04:24,175 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:04:24,175 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:04:24,175 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:04:24,175 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 15:04:24,176 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 15:04:24,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:04:24,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:04:24,177 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:04:24,177 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:04:24,177 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:04:24,177 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:04:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:04:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:04:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:04:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:04:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:04:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:04:24,179 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:04:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:04:24,181 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:04:24,181 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:04:24,185 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:04:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:04:24,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:04:24,187 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 15:04:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 15:04:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:04:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:04:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:04:24,188 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:04:24,189 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:04:24,197 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:04:24,197 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:04:24,197 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:04:24,197 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:04:24,197 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:04:24,197 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:04:24,198 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:04:24,198 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:04:24,198 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:04:24,198 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:04:24,198 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:04:24,198 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:04:24,198 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:04:24,198 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:04:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:04:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:04:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:04:24,199 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:04:24,200 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:04:24,200 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:04:24,200 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:04:24,200 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:04:24,201 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:04:24,201 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:04:24,201 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:04:24,201 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:04:24,201 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:04:24,201 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:04:24,201 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 15:04:24,201 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 15:04:24,202 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 15:04:24,202 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 15:04:24,202 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:04:24,202 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:04:24,202 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 15:04:24,202 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:04:24,203 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 15:04:24,203 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 15:04:24,203 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-07 15:04:24,203 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:04:24,203 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:04:24,203 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:04:24,203 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:04:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:04:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:04:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:04:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:04:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:04:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:04:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:04:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:04:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:04:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:04:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:04:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:04:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:04:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:04:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:04:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:04:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:04:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:04:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:04:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 15:04:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:04:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:04:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:04:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:04:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 15:04:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:04:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:04:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:04:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:04:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:04:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:04:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:04:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:04:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:04:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:04:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:04:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:04:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:04:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:04:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:04:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:04:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:04:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:04:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:04:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:04:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:04:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:04:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:04:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:04:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:04:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:04:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:04:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:04:24,212 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:04:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:04:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:04:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:04:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:04:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:04:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:04:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:04:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:04:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:04:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:04:28,919 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:04:28,919 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:04:28,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:04:28 BoogieIcfgContainer [2019-10-07 15:04:28,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:04:28,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:04:28,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:04:28,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:04:28,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:04:22" (1/3) ... [2019-10-07 15:04:28,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546f6532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:04:28, skipping insertion in model container [2019-10-07 15:04:28,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:04:23" (2/3) ... [2019-10-07 15:04:28,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546f6532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:04:28, skipping insertion in model container [2019-10-07 15:04:28,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:04:28" (3/3) ... [2019-10-07 15:04:28,929 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product32.cil.c [2019-10-07 15:04:28,939 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:04:28,950 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:04:28,961 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:04:28,991 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:04:28,991 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:04:28,991 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:04:28,991 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:04:28,991 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:04:28,992 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:04:28,992 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:04:28,992 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:04:29,021 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states. [2019-10-07 15:04:29,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-07 15:04:29,039 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:04:29,041 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:04:29,043 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:04:29,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:04:29,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1321734275, now seen corresponding path program 1 times [2019-10-07 15:04:29,059 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:04:29,059 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:29,059 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:29,059 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:29,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:04:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:29,795 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:04:29,796 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:29,796 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:04:29,797 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:04:29,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:04:29,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:04:29,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:04:29,818 INFO L87 Difference]: Start difference. First operand 440 states. Second operand 2 states. [2019-10-07 15:04:29,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:04:29,907 INFO L93 Difference]: Finished difference Result 620 states and 741 transitions. [2019-10-07 15:04:29,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:04:29,909 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 152 [2019-10-07 15:04:29,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:04:29,945 INFO L225 Difference]: With dead ends: 620 [2019-10-07 15:04:29,945 INFO L226 Difference]: Without dead ends: 392 [2019-10-07 15:04:29,958 INFO L606 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 [2019-10-07 15:04:29,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-10-07 15:04:30,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2019-10-07 15:04:30,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 392 states. [2019-10-07 15:04:30,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 463 transitions. [2019-10-07 15:04:30,065 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 463 transitions. Word has length 152 [2019-10-07 15:04:30,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:04:30,068 INFO L462 AbstractCegarLoop]: Abstraction has 392 states and 463 transitions. [2019-10-07 15:04:30,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:04:30,068 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 463 transitions. [2019-10-07 15:04:30,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-07 15:04:30,074 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:04:30,075 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:04:30,075 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:04:30,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:04:30,075 INFO L82 PathProgramCache]: Analyzing trace with hash -397632677, now seen corresponding path program 1 times [2019-10-07 15:04:30,076 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:04:30,076 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:30,076 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:30,076 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:30,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:04:30,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:30,447 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:04:30,447 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:30,448 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:04:30,448 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:04:30,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:04:30,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:04:30,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:04:30,459 INFO L87 Difference]: Start difference. First operand 392 states and 463 transitions. Second operand 3 states. [2019-10-07 15:04:30,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:04:30,544 INFO L93 Difference]: Finished difference Result 605 states and 706 transitions. [2019-10-07 15:04:30,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:04:30,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-10-07 15:04:30,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:04:30,554 INFO L225 Difference]: With dead ends: 605 [2019-10-07 15:04:30,554 INFO L226 Difference]: Without dead ends: 394 [2019-10-07 15:04:30,556 INFO L606 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 [2019-10-07 15:04:30,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2019-10-07 15:04:30,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2019-10-07 15:04:30,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2019-10-07 15:04:30,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 465 transitions. [2019-10-07 15:04:30,590 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 465 transitions. Word has length 153 [2019-10-07 15:04:30,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:04:30,591 INFO L462 AbstractCegarLoop]: Abstraction has 394 states and 465 transitions. [2019-10-07 15:04:30,591 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:04:30,591 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 465 transitions. [2019-10-07 15:04:30,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-07 15:04:30,595 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:04:30,595 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:04:30,596 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:04:30,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:04:30,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1011197803, now seen corresponding path program 1 times [2019-10-07 15:04:30,596 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:04:30,596 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:30,597 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:30,597 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:30,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:04:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:30,787 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:04:30,787 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:30,787 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:04:30,788 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:04:30,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:04:30,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:04:30,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:04:30,791 INFO L87 Difference]: Start difference. First operand 394 states and 465 transitions. Second operand 3 states. [2019-10-07 15:04:30,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:04:30,842 INFO L93 Difference]: Finished difference Result 772 states and 940 transitions. [2019-10-07 15:04:30,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:04:30,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-10-07 15:04:30,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:04:30,852 INFO L225 Difference]: With dead ends: 772 [2019-10-07 15:04:30,852 INFO L226 Difference]: Without dead ends: 436 [2019-10-07 15:04:30,854 INFO L606 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 [2019-10-07 15:04:30,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2019-10-07 15:04:30,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 435. [2019-10-07 15:04:30,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2019-10-07 15:04:30,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 536 transitions. [2019-10-07 15:04:30,907 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 536 transitions. Word has length 162 [2019-10-07 15:04:30,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:04:30,908 INFO L462 AbstractCegarLoop]: Abstraction has 435 states and 536 transitions. [2019-10-07 15:04:30,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:04:30,908 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 536 transitions. [2019-10-07 15:04:30,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-07 15:04:30,915 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:04:30,915 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:04:30,915 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:04:30,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:04:30,916 INFO L82 PathProgramCache]: Analyzing trace with hash -934147733, now seen corresponding path program 1 times [2019-10-07 15:04:30,916 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:04:30,916 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:30,916 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:30,916 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:30,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:04:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:31,147 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:04:31,150 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:31,150 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:04:31,151 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:04:31,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:04:31,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:04:31,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:04:31,153 INFO L87 Difference]: Start difference. First operand 435 states and 536 transitions. Second operand 3 states. [2019-10-07 15:04:31,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:04:31,191 INFO L93 Difference]: Finished difference Result 892 states and 1148 transitions. [2019-10-07 15:04:31,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:04:31,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2019-10-07 15:04:31,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:04:31,199 INFO L225 Difference]: With dead ends: 892 [2019-10-07 15:04:31,199 INFO L226 Difference]: Without dead ends: 515 [2019-10-07 15:04:31,202 INFO L606 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 [2019-10-07 15:04:31,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2019-10-07 15:04:31,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 514. [2019-10-07 15:04:31,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2019-10-07 15:04:31,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 672 transitions. [2019-10-07 15:04:31,244 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 672 transitions. Word has length 163 [2019-10-07 15:04:31,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:04:31,245 INFO L462 AbstractCegarLoop]: Abstraction has 514 states and 672 transitions. [2019-10-07 15:04:31,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:04:31,245 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 672 transitions. [2019-10-07 15:04:31,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-07 15:04:31,250 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:04:31,251 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:04:31,252 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:04:31,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:04:31,252 INFO L82 PathProgramCache]: Analyzing trace with hash -424785483, now seen corresponding path program 1 times [2019-10-07 15:04:31,252 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:04:31,253 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:31,253 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:31,253 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:31,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:04:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:31,430 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:04:31,431 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:31,431 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:04:31,431 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:04:31,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:04:31,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:04:31,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:04:31,433 INFO L87 Difference]: Start difference. First operand 514 states and 672 transitions. Second operand 3 states. [2019-10-07 15:04:31,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:04:31,475 INFO L93 Difference]: Finished difference Result 1123 states and 1546 transitions. [2019-10-07 15:04:31,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:04:31,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2019-10-07 15:04:31,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:04:31,480 INFO L225 Difference]: With dead ends: 1123 [2019-10-07 15:04:31,480 INFO L226 Difference]: Without dead ends: 667 [2019-10-07 15:04:31,483 INFO L606 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 [2019-10-07 15:04:31,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2019-10-07 15:04:31,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 666. [2019-10-07 15:04:31,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 666 states. [2019-10-07 15:04:31,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 932 transitions. [2019-10-07 15:04:31,530 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 932 transitions. Word has length 164 [2019-10-07 15:04:31,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:04:31,531 INFO L462 AbstractCegarLoop]: Abstraction has 666 states and 932 transitions. [2019-10-07 15:04:31,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:04:31,531 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 932 transitions. [2019-10-07 15:04:31,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-07 15:04:31,536 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:04:31,536 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:04:31,536 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:04:31,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:04:31,537 INFO L82 PathProgramCache]: Analyzing trace with hash 2020598056, now seen corresponding path program 1 times [2019-10-07 15:04:31,537 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:04:31,537 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:31,537 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:31,537 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:31,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:04:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:32,463 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:04:32,464 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:32,464 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:04:32,465 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2019-10-07 15:04:32,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-10-07 15:04:32,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-10-07 15:04:32,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2019-10-07 15:04:32,467 INFO L87 Difference]: Start difference. First operand 666 states and 932 transitions. Second operand 30 states. [2019-10-07 15:04:42,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:04:42,196 INFO L93 Difference]: Finished difference Result 1163 states and 1551 transitions. [2019-10-07 15:04:42,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-07 15:04:42,196 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 166 [2019-10-07 15:04:42,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:04:42,203 INFO L225 Difference]: With dead ends: 1163 [2019-10-07 15:04:42,203 INFO L226 Difference]: Without dead ends: 960 [2019-10-07 15:04:42,205 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=181, Invalid=2171, Unknown=0, NotChecked=0, Total=2352 [2019-10-07 15:04:42,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2019-10-07 15:04:42,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 948. [2019-10-07 15:04:42,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 948 states. [2019-10-07 15:04:42,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1287 transitions. [2019-10-07 15:04:42,253 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1287 transitions. Word has length 166 [2019-10-07 15:04:42,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:04:42,254 INFO L462 AbstractCegarLoop]: Abstraction has 948 states and 1287 transitions. [2019-10-07 15:04:42,254 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-10-07 15:04:42,254 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1287 transitions. [2019-10-07 15:04:42,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-07 15:04:42,258 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:04:42,259 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:04:42,259 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:04:42,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:04:42,259 INFO L82 PathProgramCache]: Analyzing trace with hash 70872551, now seen corresponding path program 1 times [2019-10-07 15:04:42,260 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:04:42,260 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:42,260 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:42,260 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:42,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:04:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:42,516 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:04:42,516 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:42,517 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:04:42,517 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 15:04:42,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 15:04:42,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 15:04:42,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:04:42,519 INFO L87 Difference]: Start difference. First operand 948 states and 1287 transitions. Second operand 10 states. [2019-10-07 15:04:42,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:04:42,582 INFO L93 Difference]: Finished difference Result 957 states and 1298 transitions. [2019-10-07 15:04:42,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 15:04:42,583 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 170 [2019-10-07 15:04:42,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:04:42,589 INFO L225 Difference]: With dead ends: 957 [2019-10-07 15:04:42,589 INFO L226 Difference]: Without dead ends: 954 [2019-10-07 15:04:42,590 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:04:42,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2019-10-07 15:04:42,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 954. [2019-10-07 15:04:42,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 954 states. [2019-10-07 15:04:42,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1293 transitions. [2019-10-07 15:04:42,631 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1293 transitions. Word has length 170 [2019-10-07 15:04:42,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:04:42,632 INFO L462 AbstractCegarLoop]: Abstraction has 954 states and 1293 transitions. [2019-10-07 15:04:42,632 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 15:04:42,632 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1293 transitions. [2019-10-07 15:04:42,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-07 15:04:42,636 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:04:42,637 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:04:42,637 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:04:42,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:04:42,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1041453392, now seen corresponding path program 1 times [2019-10-07 15:04:42,638 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:04:42,638 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:42,638 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:42,638 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:42,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:04:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:43,064 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:04:43,064 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:43,064 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:04:43,064 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-07 15:04:43,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-07 15:04:43,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-07 15:04:43,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2019-10-07 15:04:43,067 INFO L87 Difference]: Start difference. First operand 954 states and 1293 transitions. Second operand 16 states. [2019-10-07 15:04:46,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:04:46,661 INFO L93 Difference]: Finished difference Result 1888 states and 2499 transitions. [2019-10-07 15:04:46,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-07 15:04:46,663 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 172 [2019-10-07 15:04:46,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:04:46,674 INFO L225 Difference]: With dead ends: 1888 [2019-10-07 15:04:46,674 INFO L226 Difference]: Without dead ends: 1680 [2019-10-07 15:04:46,676 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2019-10-07 15:04:46,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2019-10-07 15:04:46,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1619. [2019-10-07 15:04:46,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1619 states. [2019-10-07 15:04:46,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2158 transitions. [2019-10-07 15:04:46,768 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2158 transitions. Word has length 172 [2019-10-07 15:04:46,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:04:46,769 INFO L462 AbstractCegarLoop]: Abstraction has 1619 states and 2158 transitions. [2019-10-07 15:04:46,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-07 15:04:46,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2158 transitions. [2019-10-07 15:04:46,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-07 15:04:46,775 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:04:46,775 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:04:46,775 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:04:46,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:04:46,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1339166046, now seen corresponding path program 1 times [2019-10-07 15:04:46,776 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:04:46,776 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:46,776 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:46,777 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:04:46,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:04:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:47,353 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-07 15:04:47,354 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:04:47,354 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:04:47,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:04:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:04:48,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 3070 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:04:48,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:04:48,156 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:04:48,157 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:04:48,417 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:04:48,417 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:04:48,454 INFO L162 IcfgInterpreter]: Started Sifa with 169 locations of interest [2019-10-07 15:04:48,454 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:04:48,462 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:04:48,470 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:04:48,471 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:05:51,402 WARN L191 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 687 [2019-10-07 15:05:55,315 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 309 DAG size of output: 251 [2019-10-07 15:05:55,667 WARN L191 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 728 [2019-10-07 15:05:56,062 WARN L191 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 728 [2019-10-07 15:05:56,422 WARN L191 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 728 [2019-10-07 15:05:56,597 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:05:57,249 WARN L191 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:05:57,881 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:05:58,525 WARN L191 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:05:58,664 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:05:59,330 WARN L191 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:06:00,523 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 1026 DAG size of output: 1024 [2019-10-07 15:06:01,167 WARN L191 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:06:01,309 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:06:01,979 WARN L191 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:06:02,574 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:06:03,199 WARN L191 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:06:03,396 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:06:03,997 WARN L191 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 1024 [2019-10-07 15:06:04,022 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 559 for LOIs [2019-10-07 15:06:04,379 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 653 [2019-10-07 15:06:04,482 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 653 [2019-10-07 15:06:04,614 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:06:05,063 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 949 [2019-10-07 15:06:05,065 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1082 for LOIs [2019-10-07 15:06:05,672 WARN L191 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:06,262 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:06,511 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:06:07,546 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:08,132 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:08,743 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:08,993 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:06:09,985 WARN L191 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:10,692 WARN L191 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:11,280 WARN L191 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:11,532 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:06:12,520 WARN L191 SmtUtils]: Spent 986.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:13,466 WARN L191 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 1286 DAG size of output: 1082 [2019-10-07 15:06:14,044 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:14,660 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 644 DAG size of output: 642 [2019-10-07 15:06:15,637 WARN L191 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:16,237 WARN L191 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:16,817 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:17,084 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:06:18,061 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:18,646 WARN L191 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:19,225 WARN L191 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:19,472 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:06:20,442 WARN L191 SmtUtils]: Spent 968.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:21,038 WARN L191 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:21,624 WARN L191 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:21,866 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:06:22,844 WARN L191 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:23,422 WARN L191 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:23,996 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:24,247 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:06:25,254 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:25,831 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:26,417 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:26,664 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:06:27,630 WARN L191 SmtUtils]: Spent 964.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:28,210 WARN L191 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:28,797 WARN L191 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:29,043 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:06:30,017 WARN L191 SmtUtils]: Spent 972.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:30,595 WARN L191 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:31,172 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:31,424 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:06:32,410 WARN L191 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:32,988 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:33,563 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:33,810 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:06:34,786 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:35,363 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:35,945 WARN L191 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 15:06:36,190 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:06:37,179 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:38,244 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:39,221 WARN L191 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:39,517 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:06:40,492 WARN L191 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:42,312 WARN L191 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 15:06:43,291 WARN L191 SmtUtils]: Spent 976.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:43,554 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:06:44,537 WARN L191 SmtUtils]: Spent 981.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:45,518 WARN L191 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:46,497 WARN L191 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:46,739 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:06:47,721 WARN L191 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:06:48,735 WARN L191 SmtUtils]: Spent 981.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:06:49,719 WARN L191 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:06:49,977 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:06:50,967 WARN L191 SmtUtils]: Spent 988.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:06:52,677 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:06:53,658 WARN L191 SmtUtils]: Spent 978.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:06:53,912 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:06:54,901 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:06:55,895 WARN L191 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:06:56,907 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:06:57,169 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:06:58,146 WARN L191 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:06:59,123 WARN L191 SmtUtils]: Spent 968.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 15:07:00,086 WARN L191 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 15:07:00,336 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:07:01,304 WARN L191 SmtUtils]: Spent 966.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:07:02,293 WARN L191 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:07:03,264 WARN L191 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:07:03,520 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:07:04,504 WARN L191 SmtUtils]: Spent 982.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 15:07:07,325 WARN L191 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 15:07:08,309 WARN L191 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:07:08,585 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:07:09,560 WARN L191 SmtUtils]: Spent 972.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:07:11,366 WARN L191 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 15:07:12,332 WARN L191 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:07:12,593 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:07:13,555 WARN L191 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:07:14,516 WARN L191 SmtUtils]: Spent 957.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:07:15,475 WARN L191 SmtUtils]: Spent 955.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:07:15,720 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:07:16,681 WARN L191 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:07:18,461 WARN L191 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 15:07:19,427 WARN L191 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:07:19,679 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:07:20,638 WARN L191 SmtUtils]: Spent 957.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:07:22,742 WARN L191 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 15:07:23,708 WARN L191 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:07:23,957 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:07:24,925 WARN L191 SmtUtils]: Spent 966.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:07:25,891 WARN L191 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:07:26,857 WARN L191 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:07:27,098 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:07:28,066 WARN L191 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:07:29,752 WARN L191 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 15:07:30,718 WARN L191 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 15:07:30,973 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:07:31,944 WARN L191 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:07:33,729 WARN L191 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1288 [2019-10-07 15:07:34,704 WARN L191 SmtUtils]: Spent 972.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:07:34,956 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:07:35,943 WARN L191 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:07:37,602 WARN L191 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 15:07:38,580 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 15:07:38,824 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:07:39,796 WARN L191 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:07:41,467 WARN L191 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 1295 DAG size of output: 1288 [2019-10-07 15:07:42,442 WARN L191 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:07:42,724 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:07:43,701 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 15:07:45,369 WARN L191 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 1297 DAG size of output: 1290 [2019-10-07 15:07:46,356 WARN L191 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 15:07:46,610 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:07:47,586 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 15:07:47,861 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:07:47,862 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:07:47,868 INFO L168 Benchmark]: Toolchain (without parser) took 205345.88 ms. Allocated memory was 135.8 MB in the beginning and 589.8 MB in the end (delta: 454.0 MB). Free memory was 98.6 MB in the beginning and 465.7 MB in the end (delta: -367.2 MB). Peak memory consumption was 86.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:07:47,869 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-07 15:07:47,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1321.43 ms. Allocated memory was 135.8 MB in the beginning and 200.8 MB in the end (delta: 65.0 MB). Free memory was 98.4 MB in the beginning and 130.7 MB in the end (delta: -32.4 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:07:47,871 INFO L168 Benchmark]: Boogie Preprocessor took 208.37 ms. Allocated memory is still 200.8 MB. Free memory was 130.7 MB in the beginning and 121.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:07:47,871 INFO L168 Benchmark]: RCFGBuilder took 4866.78 ms. Allocated memory was 200.8 MB in the beginning and 315.1 MB in the end (delta: 114.3 MB). Free memory was 121.1 MB in the beginning and 126.8 MB in the end (delta: -5.7 MB). Peak memory consumption was 108.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:07:47,872 INFO L168 Benchmark]: TraceAbstraction took 198944.64 ms. Allocated memory was 315.1 MB in the beginning and 589.8 MB in the end (delta: 274.7 MB). Free memory was 126.8 MB in the beginning and 465.7 MB in the end (delta: -338.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 15:07:47,876 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1321.43 ms. Allocated memory was 135.8 MB in the beginning and 200.8 MB in the end (delta: 65.0 MB). Free memory was 98.4 MB in the beginning and 130.7 MB in the end (delta: -32.4 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 208.37 ms. Allocated memory is still 200.8 MB. Free memory was 130.7 MB in the beginning and 121.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4866.78 ms. Allocated memory was 200.8 MB in the beginning and 315.1 MB in the end (delta: 114.3 MB). Free memory was 121.1 MB in the beginning and 126.8 MB in the end (delta: -5.7 MB). Peak memory consumption was 108.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 198944.64 ms. Allocated memory was 315.1 MB in the beginning and 589.8 MB in the end (delta: 274.7 MB). Free memory was 126.8 MB in the beginning and 465.7 MB in the end (delta: -338.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...