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_spec8_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:12:43,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:12:43,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:12:43,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:12:43,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:12:43,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:12:43,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:12:43,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:12:43,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:12:43,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:12:43,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:12:43,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:12:43,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:12:43,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:12:43,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:12:43,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:12:43,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:12:43,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:12:43,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:12:43,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:12:43,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:12:43,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:12:43,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:12:43,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:12:43,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:12:43,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:12:43,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:12:43,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:12:43,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:12:43,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:12:43,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:12:43,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:12:43,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:12:43,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:12:43,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:12:43,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:12:43,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:12:43,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:12:43,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:12:43,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:12:43,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:12:43,961 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:12:43,975 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:12:43,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:12:43,976 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:12:43,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:12:43,977 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:12:43,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:12:43,977 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:12:43,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:12:43,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:12:43,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:12:43,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:12:43,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:12:43,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:12:43,979 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:12:43,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:12:43,979 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:12:43,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:12:43,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:12:43,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:12:43,980 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:12:43,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:12:43,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:43,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:12:43,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:12:43,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:12:43,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:12:43,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:12:43,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:12:43,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:12:44,269 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:12:44,283 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:12:44,287 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:12:44,288 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:12:44,289 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:12:44,289 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product29.cil.c [2019-10-13 23:12:44,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94804f6d4/252c1959cefc4f0883acefd239b32db9/FLAG462d5b248 [2019-10-13 23:12:45,021 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:12:45,022 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product29.cil.c [2019-10-13 23:12:45,052 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94804f6d4/252c1959cefc4f0883acefd239b32db9/FLAG462d5b248 [2019-10-13 23:12:45,231 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94804f6d4/252c1959cefc4f0883acefd239b32db9 [2019-10-13 23:12:45,241 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:12:45,243 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:12:45,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:45,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:12:45,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:12:45,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:45" (1/1) ... [2019-10-13 23:12:45,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45859c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:45, skipping insertion in model container [2019-10-13 23:12:45,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:45" (1/1) ... [2019-10-13 23:12:45,259 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:12:45,328 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:12:46,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:46,123 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:12:46,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:46,349 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:12:46,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46 WrapperNode [2019-10-13 23:12:46,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:46,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:12:46,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:12:46,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:12:46,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:12:46,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:12:46,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:12:46,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:12:46,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:46,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:12:46,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:12:46,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:46,623 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:12:46,623 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:12:46,624 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:12:46,624 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:12:46,624 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:12:46,624 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:12:46,625 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:12:46,625 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:12:46,625 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:12:46,625 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:12:46,625 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:12:46,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:12:46,626 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:12:46,626 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:12:46,626 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:12:46,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:12:46,627 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:12:46,627 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:12:46,628 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:12:46,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:12:46,628 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:12:46,628 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:12:46,628 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:12:46,629 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:12:46,629 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:12:46,629 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:12:46,629 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:12:46,629 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:12:46,630 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:12:46,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:12:46,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:12:46,630 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:12:46,630 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:12:46,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:46,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:46,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:46,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:46,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:46,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:12:46,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:12:46,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:12:46,632 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:12:46,632 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:12:46,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:12:46,632 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:12:46,633 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:12:46,633 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:12:46,633 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:12:46,633 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:12:46,633 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:12:46,633 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:12:46,634 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:12:46,634 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:12:46,634 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:12:46,634 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:12:46,635 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:12:46,635 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:12:46,635 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:12:46,635 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:12:46,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:12:46,635 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:12:46,636 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:12:46,636 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:12:46,636 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:12:46,636 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:12:46,636 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:12:46,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:46,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:12:46,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:46,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:12:46,637 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:12:46,637 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:12:46,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:12:46,638 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:12:46,638 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:12:46,638 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:12:46,638 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:12:46,639 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:12:46,639 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:12:46,639 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:12:46,639 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:12:46,639 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:12:46,639 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:12:46,640 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:12:46,640 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:12:46,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:12:46,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:12:46,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:12:46,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:12:46,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:12:46,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:12:46,641 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:12:46,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:12:46,641 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:12:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:12:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:12:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:12:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:12:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:12:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:12:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:12:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:12:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:12:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:12:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:12:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:12:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:12:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:12:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:12:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:12:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:12:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:12:46,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:12:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:12:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:12:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:12:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:12:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:12:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:12:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:12:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:12:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:12:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:12:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:12:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:12:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:12:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:12:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:12:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:12:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:12:46,648 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:12:46,648 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:12:46,648 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:12:46,648 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:12:46,648 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:12:46,648 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:12:46,648 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:12:46,649 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:12:46,649 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:12:46,649 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:12:46,649 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:12:46,649 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:12:46,649 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:12:46,650 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:12:46,650 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:12:46,650 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:12:46,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:12:46,650 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:12:46,650 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:12:46,650 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:12:46,651 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:12:46,651 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:12:46,651 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:46,651 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:46,651 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:12:46,651 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:12:46,651 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:12:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:12:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:12:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:12:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:12:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:12:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:12:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:12:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:12:46,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:12:46,654 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:12:46,654 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:12:46,654 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:12:46,654 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:12:46,655 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:12:46,655 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:12:46,655 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:12:46,655 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:12:46,655 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:12:46,655 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:12:46,656 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:12:46,656 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:12:46,656 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:12:46,656 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:12:46,656 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:12:46,656 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:12:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:12:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:12:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:12:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:12:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:12:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:12:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:12:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:12:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:12:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:12:46,659 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:12:46,659 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:12:46,659 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:12:46,659 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:12:46,659 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:12:46,659 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:12:46,659 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:12:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:12:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:12:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:12:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:12:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:12:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:12:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:12:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:12:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:12:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:12:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:12:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:12:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:12:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:12:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:12:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:12:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:12:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:12:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:12:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:12:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:12:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:12:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:12:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:12:46,664 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:12:46,664 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:12:46,664 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:12:46,664 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:12:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:12:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:12:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:12:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:12:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:12:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:12:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:12:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:12:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:12:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:12:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:12:51,447 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:12:51,447 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:12:51,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:51 BoogieIcfgContainer [2019-10-13 23:12:51,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:12:51,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:12:51,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:12:51,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:12:51,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:12:45" (1/3) ... [2019-10-13 23:12:51,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd8fc60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:51, skipping insertion in model container [2019-10-13 23:12:51,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46" (2/3) ... [2019-10-13 23:12:51,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd8fc60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:51, skipping insertion in model container [2019-10-13 23:12:51,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:51" (3/3) ... [2019-10-13 23:12:51,458 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product29.cil.c [2019-10-13 23:12:51,469 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:12:51,479 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:12:51,491 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:12:51,521 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:12:51,522 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:12:51,522 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:12:51,522 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:12:51,522 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:12:51,522 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:12:51,522 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:12:51,523 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:12:51,553 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states. [2019-10-13 23:12:51,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-13 23:12:51,581 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:51,584 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:51,588 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:51,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:51,595 INFO L82 PathProgramCache]: Analyzing trace with hash -929806989, now seen corresponding path program 1 times [2019-10-13 23:12:51,605 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:51,606 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743444364] [2019-10-13 23:12:51,606 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:51,606 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:51,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:52,369 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:52,370 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743444364] [2019-10-13 23:12:52,371 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:52,371 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:12:52,371 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827163743] [2019-10-13 23:12:52,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:12:52,377 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:52,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:12:52,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:12:52,390 INFO L87 Difference]: Start difference. First operand 421 states. Second operand 2 states. [2019-10-13 23:12:52,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:52,478 INFO L93 Difference]: Finished difference Result 589 states and 705 transitions. [2019-10-13 23:12:52,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:12:52,480 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-10-13 23:12:52,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:52,519 INFO L225 Difference]: With dead ends: 589 [2019-10-13 23:12:52,519 INFO L226 Difference]: Without dead ends: 373 [2019-10-13 23:12:52,535 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:12:52,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2019-10-13 23:12:52,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2019-10-13 23:12:52,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2019-10-13 23:12:52,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 443 transitions. [2019-10-13 23:12:52,690 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 443 transitions. Word has length 132 [2019-10-13 23:12:52,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:52,693 INFO L462 AbstractCegarLoop]: Abstraction has 373 states and 443 transitions. [2019-10-13 23:12:52,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:12:52,693 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 443 transitions. [2019-10-13 23:12:52,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-13 23:12:52,707 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:52,707 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:52,708 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:52,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:52,709 INFO L82 PathProgramCache]: Analyzing trace with hash -708587585, now seen corresponding path program 1 times [2019-10-13 23:12:52,710 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:52,710 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901444540] [2019-10-13 23:12:52,710 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:52,710 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:52,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:52,934 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:52,935 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901444540] [2019-10-13 23:12:52,935 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:52,935 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:52,936 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031634874] [2019-10-13 23:12:52,938 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:52,938 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:52,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:52,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:52,939 INFO L87 Difference]: Start difference. First operand 373 states and 443 transitions. Second operand 3 states. [2019-10-13 23:12:52,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:52,979 INFO L93 Difference]: Finished difference Result 574 states and 673 transitions. [2019-10-13 23:12:52,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:52,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-10-13 23:12:52,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:52,985 INFO L225 Difference]: With dead ends: 574 [2019-10-13 23:12:52,986 INFO L226 Difference]: Without dead ends: 375 [2019-10-13 23:12:52,992 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:52,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-10-13 23:12:53,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2019-10-13 23:12:53,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2019-10-13 23:12:53,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 445 transitions. [2019-10-13 23:12:53,034 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 445 transitions. Word has length 133 [2019-10-13 23:12:53,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:53,035 INFO L462 AbstractCegarLoop]: Abstraction has 375 states and 445 transitions. [2019-10-13 23:12:53,035 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:53,035 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 445 transitions. [2019-10-13 23:12:53,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-13 23:12:53,039 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:53,039 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:53,040 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:53,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:53,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1229602126, now seen corresponding path program 1 times [2019-10-13 23:12:53,040 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:53,041 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752776296] [2019-10-13 23:12:53,041 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,041 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:53,370 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:53,371 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752776296] [2019-10-13 23:12:53,371 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:53,371 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:53,372 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762350804] [2019-10-13 23:12:53,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:53,373 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:53,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:53,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:53,373 INFO L87 Difference]: Start difference. First operand 375 states and 445 transitions. Second operand 3 states. [2019-10-13 23:12:53,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:53,436 INFO L93 Difference]: Finished difference Result 732 states and 897 transitions. [2019-10-13 23:12:53,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:53,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2019-10-13 23:12:53,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:53,446 INFO L225 Difference]: With dead ends: 732 [2019-10-13 23:12:53,446 INFO L226 Difference]: Without dead ends: 415 [2019-10-13 23:12:53,449 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:53,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2019-10-13 23:12:53,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 414. [2019-10-13 23:12:53,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2019-10-13 23:12:53,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 513 transitions. [2019-10-13 23:12:53,496 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 513 transitions. Word has length 138 [2019-10-13 23:12:53,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:53,498 INFO L462 AbstractCegarLoop]: Abstraction has 414 states and 513 transitions. [2019-10-13 23:12:53,498 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:53,498 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 513 transitions. [2019-10-13 23:12:53,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-13 23:12:53,509 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:53,509 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:53,510 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:53,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:53,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1480215047, now seen corresponding path program 1 times [2019-10-13 23:12:53,511 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:53,511 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864543868] [2019-10-13 23:12:53,511 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,512 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:53,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:53,792 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:12:53,793 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864543868] [2019-10-13 23:12:53,793 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:53,793 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:53,793 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174881999] [2019-10-13 23:12:53,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:53,795 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:53,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:53,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:53,796 INFO L87 Difference]: Start difference. First operand 414 states and 513 transitions. Second operand 3 states. [2019-10-13 23:12:53,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:53,852 INFO L93 Difference]: Finished difference Result 682 states and 827 transitions. [2019-10-13 23:12:53,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:53,853 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2019-10-13 23:12:53,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:53,858 INFO L225 Difference]: With dead ends: 682 [2019-10-13 23:12:53,859 INFO L226 Difference]: Without dead ends: 495 [2019-10-13 23:12:53,860 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:53,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2019-10-13 23:12:53,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 494. [2019-10-13 23:12:53,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2019-10-13 23:12:53,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 604 transitions. [2019-10-13 23:12:53,904 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 604 transitions. Word has length 139 [2019-10-13 23:12:53,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:53,906 INFO L462 AbstractCegarLoop]: Abstraction has 494 states and 604 transitions. [2019-10-13 23:12:53,906 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:53,906 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 604 transitions. [2019-10-13 23:12:53,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-13 23:12:53,912 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:53,913 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:53,913 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:53,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:53,914 INFO L82 PathProgramCache]: Analyzing trace with hash 483835265, now seen corresponding path program 1 times [2019-10-13 23:12:53,914 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:53,915 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060685619] [2019-10-13 23:12:53,915 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,915 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:54,458 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:12:54,459 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060685619] [2019-10-13 23:12:54,459 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:54,459 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 23:12:54,459 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392057174] [2019-10-13 23:12:54,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:12:54,460 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:54,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:12:54,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:12:54,461 INFO L87 Difference]: Start difference. First operand 494 states and 604 transitions. Second operand 14 states. [2019-10-13 23:12:58,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:58,626 INFO L93 Difference]: Finished difference Result 1153 states and 1399 transitions. [2019-10-13 23:12:58,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:12:58,627 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 241 [2019-10-13 23:12:58,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:58,638 INFO L225 Difference]: With dead ends: 1153 [2019-10-13 23:12:58,639 INFO L226 Difference]: Without dead ends: 908 [2019-10-13 23:12:58,641 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-13 23:12:58,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2019-10-13 23:12:58,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 899. [2019-10-13 23:12:58,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 899 states. [2019-10-13 23:12:58,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1108 transitions. [2019-10-13 23:12:58,712 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1108 transitions. Word has length 241 [2019-10-13 23:12:58,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:58,713 INFO L462 AbstractCegarLoop]: Abstraction has 899 states and 1108 transitions. [2019-10-13 23:12:58,713 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:12:58,713 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1108 transitions. [2019-10-13 23:12:58,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-10-13 23:12:58,721 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:58,721 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:58,721 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:58,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:58,722 INFO L82 PathProgramCache]: Analyzing trace with hash -204967358, now seen corresponding path program 1 times [2019-10-13 23:12:58,722 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:58,722 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10392894] [2019-10-13 23:12:58,723 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:58,723 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:58,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:58,929 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:12:58,930 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10392894] [2019-10-13 23:12:58,931 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:58,931 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:58,931 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056037469] [2019-10-13 23:12:58,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:58,932 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:58,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:58,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:58,933 INFO L87 Difference]: Start difference. First operand 899 states and 1108 transitions. Second operand 3 states. [2019-10-13 23:12:58,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:58,992 INFO L93 Difference]: Finished difference Result 1896 states and 2425 transitions. [2019-10-13 23:12:58,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:58,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 263 [2019-10-13 23:12:58,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:59,000 INFO L225 Difference]: With dead ends: 1896 [2019-10-13 23:12:59,002 INFO L226 Difference]: Without dead ends: 1055 [2019-10-13 23:12:59,005 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:59,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2019-10-13 23:12:59,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 1053. [2019-10-13 23:12:59,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2019-10-13 23:12:59,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1374 transitions. [2019-10-13 23:12:59,073 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1374 transitions. Word has length 263 [2019-10-13 23:12:59,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:59,073 INFO L462 AbstractCegarLoop]: Abstraction has 1053 states and 1374 transitions. [2019-10-13 23:12:59,074 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:59,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1374 transitions. [2019-10-13 23:12:59,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2019-10-13 23:12:59,081 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:59,081 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:59,082 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:59,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:59,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1684471433, now seen corresponding path program 1 times [2019-10-13 23:12:59,082 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:59,083 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850058423] [2019-10-13 23:12:59,083 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:59,083 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:59,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:59,424 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:12:59,425 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850058423] [2019-10-13 23:12:59,425 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:59,425 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:59,425 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945615274] [2019-10-13 23:12:59,427 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:59,427 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:59,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:59,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:59,428 INFO L87 Difference]: Start difference. First operand 1053 states and 1374 transitions. Second operand 3 states. [2019-10-13 23:12:59,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:59,507 INFO L93 Difference]: Finished difference Result 2338 states and 3191 transitions. [2019-10-13 23:12:59,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:59,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2019-10-13 23:12:59,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:59,516 INFO L225 Difference]: With dead ends: 2338 [2019-10-13 23:12:59,517 INFO L226 Difference]: Without dead ends: 1343 [2019-10-13 23:12:59,520 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:59,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2019-10-13 23:12:59,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1341. [2019-10-13 23:12:59,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1341 states. [2019-10-13 23:12:59,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1870 transitions. [2019-10-13 23:12:59,618 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1870 transitions. Word has length 264 [2019-10-13 23:12:59,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:59,620 INFO L462 AbstractCegarLoop]: Abstraction has 1341 states and 1870 transitions. [2019-10-13 23:12:59,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:59,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1870 transitions. [2019-10-13 23:12:59,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2019-10-13 23:12:59,629 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:59,630 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:59,630 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:59,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:59,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1071701155, now seen corresponding path program 1 times [2019-10-13 23:12:59,631 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:59,631 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450520429] [2019-10-13 23:12:59,631 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:59,631 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:59,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:59,822 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-13 23:12:59,822 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450520429] [2019-10-13 23:12:59,822 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:59,823 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:59,823 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616880326] [2019-10-13 23:12:59,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:59,825 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:59,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:59,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:59,825 INFO L87 Difference]: Start difference. First operand 1341 states and 1870 transitions. Second operand 3 states. [2019-10-13 23:12:59,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:59,930 INFO L93 Difference]: Finished difference Result 3178 states and 4639 transitions. [2019-10-13 23:12:59,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:59,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2019-10-13 23:12:59,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:59,994 INFO L225 Difference]: With dead ends: 3178 [2019-10-13 23:12:59,994 INFO L226 Difference]: Without dead ends: 1895 [2019-10-13 23:12:59,998 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:00,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1895 states. [2019-10-13 23:13:00,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 1893. [2019-10-13 23:13:00,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1893 states. [2019-10-13 23:13:00,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2814 transitions. [2019-10-13 23:13:00,107 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2814 transitions. Word has length 270 [2019-10-13 23:13:00,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:00,108 INFO L462 AbstractCegarLoop]: Abstraction has 1893 states and 2814 transitions. [2019-10-13 23:13:00,108 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:00,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2814 transitions. [2019-10-13 23:13:00,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2019-10-13 23:13:00,120 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:00,120 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:00,120 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:00,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:00,121 INFO L82 PathProgramCache]: Analyzing trace with hash -983139318, now seen corresponding path program 1 times [2019-10-13 23:13:00,121 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:00,121 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242440171] [2019-10-13 23:13:00,121 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:00,121 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:00,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:00,340 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-13 23:13:00,341 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242440171] [2019-10-13 23:13:00,341 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:00,341 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:00,342 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239105941] [2019-10-13 23:13:00,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:00,342 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:00,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:00,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:00,343 INFO L87 Difference]: Start difference. First operand 1893 states and 2814 transitions. Second operand 3 states. [2019-10-13 23:13:00,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:00,525 INFO L93 Difference]: Finished difference Result 4786 states and 7391 transitions. [2019-10-13 23:13:00,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:00,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 271 [2019-10-13 23:13:00,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:00,550 INFO L225 Difference]: With dead ends: 4786 [2019-10-13 23:13:00,550 INFO L226 Difference]: Without dead ends: 2951 [2019-10-13 23:13:00,559 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:00,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2019-10-13 23:13:00,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2949. [2019-10-13 23:13:00,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2949 states. [2019-10-13 23:13:00,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 4606 transitions. [2019-10-13 23:13:00,729 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 4606 transitions. Word has length 271 [2019-10-13 23:13:00,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:00,729 INFO L462 AbstractCegarLoop]: Abstraction has 2949 states and 4606 transitions. [2019-10-13 23:13:00,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:00,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 4606 transitions. [2019-10-13 23:13:00,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2019-10-13 23:13:00,747 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:00,748 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:00,748 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:00,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:00,748 INFO L82 PathProgramCache]: Analyzing trace with hash -998422844, now seen corresponding path program 1 times [2019-10-13 23:13:00,748 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:00,749 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431311107] [2019-10-13 23:13:00,749 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:00,749 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:00,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:01,008 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:01,009 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431311107] [2019-10-13 23:13:01,009 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:01,010 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:01,010 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535869542] [2019-10-13 23:13:01,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:01,011 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:01,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:01,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:01,012 INFO L87 Difference]: Start difference. First operand 2949 states and 4606 transitions. Second operand 3 states. [2019-10-13 23:13:01,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:01,232 INFO L93 Difference]: Finished difference Result 7986 states and 12799 transitions. [2019-10-13 23:13:01,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:01,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 267 [2019-10-13 23:13:01,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:01,273 INFO L225 Difference]: With dead ends: 7986 [2019-10-13 23:13:01,274 INFO L226 Difference]: Without dead ends: 5095 [2019-10-13 23:13:01,292 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:01,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5095 states. [2019-10-13 23:13:01,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5095 to 5093. [2019-10-13 23:13:01,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5093 states. [2019-10-13 23:13:01,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 8190 transitions. [2019-10-13 23:13:01,596 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 8190 transitions. Word has length 267 [2019-10-13 23:13:01,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:01,597 INFO L462 AbstractCegarLoop]: Abstraction has 5093 states and 8190 transitions. [2019-10-13 23:13:01,597 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:01,597 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 8190 transitions. [2019-10-13 23:13:01,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-10-13 23:13:01,625 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:01,625 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:01,626 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:01,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:01,626 INFO L82 PathProgramCache]: Analyzing trace with hash 159921546, now seen corresponding path program 1 times [2019-10-13 23:13:01,627 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:01,627 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166844953] [2019-10-13 23:13:01,627 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:01,627 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:01,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:01,814 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-13 23:13:01,814 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166844953] [2019-10-13 23:13:01,815 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:01,815 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:01,815 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388580626] [2019-10-13 23:13:01,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:01,816 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:01,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:01,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:01,816 INFO L87 Difference]: Start difference. First operand 5093 states and 8190 transitions. Second operand 3 states. [2019-10-13 23:13:02,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:02,207 INFO L93 Difference]: Finished difference Result 14098 states and 23039 transitions. [2019-10-13 23:13:02,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:02,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2019-10-13 23:13:02,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:02,289 INFO L225 Difference]: With dead ends: 14098 [2019-10-13 23:13:02,290 INFO L226 Difference]: Without dead ends: 9063 [2019-10-13 23:13:02,318 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:02,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9063 states. [2019-10-13 23:13:02,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9063 to 9061. [2019-10-13 23:13:02,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9061 states. [2019-10-13 23:13:02,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9061 states to 9061 states and 14782 transitions. [2019-10-13 23:13:02,862 INFO L78 Accepts]: Start accepts. Automaton has 9061 states and 14782 transitions. Word has length 273 [2019-10-13 23:13:02,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:02,862 INFO L462 AbstractCegarLoop]: Abstraction has 9061 states and 14782 transitions. [2019-10-13 23:13:02,863 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:02,863 INFO L276 IsEmpty]: Start isEmpty. Operand 9061 states and 14782 transitions. [2019-10-13 23:13:02,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-10-13 23:13:02,926 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:02,927 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:02,927 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:02,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:02,928 INFO L82 PathProgramCache]: Analyzing trace with hash -668177819, now seen corresponding path program 1 times [2019-10-13 23:13:02,928 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:02,928 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540596281] [2019-10-13 23:13:02,928 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:02,928 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:02,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:03,730 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-13 23:13:03,731 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540596281] [2019-10-13 23:13:03,731 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473351218] [2019-10-13 23:13:03,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:13:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:04,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 3564 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 23:13:04,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:13:04,743 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-13 23:13:04,743 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:13:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:05,915 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [382623570] [2019-10-13 23:13:05,968 INFO L162 IcfgInterpreter]: Started Sifa with 216 locations of interest [2019-10-13 23:13:05,969 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:13:05,978 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:13:05,986 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:13:05,987 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs