java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:10:34,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:10:34,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:10:34,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:10:34,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:10:34,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:10:34,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:10:34,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:10:34,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:10:34,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:10:34,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:10:34,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:10:34,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:10:34,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:10:34,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:10:34,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:10:34,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:10:34,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:10:34,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:10:34,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:10:34,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:10:34,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:10:34,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:10:34,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:10:34,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:10:34,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:10:34,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:10:34,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:10:34,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:10:34,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:10:34,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:10:34,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:10:34,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:10:34,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:10:34,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:10:34,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:10:34,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:10:34,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:10:34,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:10:34,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:10:34,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:10:34,313 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 23:10:34,327 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:10:34,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:10:34,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:10:34,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:10:34,329 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:10:34,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:10:34,329 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:10:34,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:10:34,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:10:34,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:10:34,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:10:34,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:10:34,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:10:34,331 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:10:34,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:10:34,331 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:10:34,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:10:34,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:10:34,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:10:34,332 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:10:34,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:10:34,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:10:34,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:10:34,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:10:34,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:10:34,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:10:34,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:10:34,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:10:34,334 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 23:10:34,589 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:10:34,602 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:10:34,605 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:10:34,606 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:10:34,607 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:10:34,608 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product33.cil.c [2019-10-13 23:10:34,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27798f91/3c1b7fe5aead42cca020a53d4366698f/FLAGab41cd908 [2019-10-13 23:10:35,180 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:10:35,180 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product33.cil.c [2019-10-13 23:10:35,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27798f91/3c1b7fe5aead42cca020a53d4366698f/FLAGab41cd908 [2019-10-13 23:10:35,434 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27798f91/3c1b7fe5aead42cca020a53d4366698f [2019-10-13 23:10:35,443 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:10:35,445 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:10:35,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:10:35,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:10:35,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:10:35,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:10:35" (1/1) ... [2019-10-13 23:10:35,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b5cac2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:35, skipping insertion in model container [2019-10-13 23:10:35,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:10:35" (1/1) ... [2019-10-13 23:10:35,459 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:10:35,527 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:10:36,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:10:36,283 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:10:36,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:10:36,564 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:10:36,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:36 WrapperNode [2019-10-13 23:10:36,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:10:36,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:10:36,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:10:36,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:10:36,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:36" (1/1) ... [2019-10-13 23:10:36,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:36" (1/1) ... [2019-10-13 23:10:36,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:36" (1/1) ... [2019-10-13 23:10:36,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:36" (1/1) ... [2019-10-13 23:10:36,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:36" (1/1) ... [2019-10-13 23:10:36,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:36" (1/1) ... [2019-10-13 23:10:36,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:36" (1/1) ... [2019-10-13 23:10:36,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:10:36,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:10:36,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:10:36,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:10:36,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:36" (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 23:10:36,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:10:36,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:10:36,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:10:36,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:10:36,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:10:36,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:10:36,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:10:36,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:10:36,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:10:36,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:10:36,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:10:36,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:10:36,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:10:36,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:10:36,888 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:10:36,888 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:10:36,890 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:10:36,890 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:10:36,890 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:10:36,891 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:10:36,891 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:10:36,891 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:10:36,891 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:10:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:10:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:10:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:10:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:10:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:10:36,893 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:10:36,893 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:10:36,893 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:10:36,894 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:10:36,894 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:10:36,894 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:10:36,895 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:10:36,895 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:10:36,895 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:10:36,895 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:10:36,895 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:10:36,896 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:10:36,896 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:10:36,896 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:10:36,896 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:10:36,896 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:10:36,897 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:10:36,897 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:10:36,897 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:10:36,897 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:10:36,897 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:10:36,898 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:10:36,898 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:10:36,898 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:10:36,898 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:10:36,898 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:10:36,899 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:10:36,899 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:10:36,899 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:10:36,899 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:10:36,899 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:10:36,900 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:10:36,900 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:10:36,901 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:10:36,901 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:10:36,901 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:10:36,901 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:10:36,901 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:10:36,902 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:10:36,902 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:10:36,902 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:10:36,902 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:10:36,902 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:10:36,902 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:10:36,903 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:10:36,903 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:10:36,903 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:10:36,904 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:10:36,904 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:10:36,904 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:10:36,904 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:10:36,905 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:10:36,905 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:10:36,906 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:10:36,906 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:10:36,906 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:10:36,906 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:10:36,906 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:10:36,906 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:10:36,907 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:10:36,907 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-13 23:10:36,907 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:10:36,908 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:10:36,908 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:10:36,908 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:10:36,908 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:10:36,908 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:10:36,908 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:10:36,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-13 23:10:36,909 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:10:36,909 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:10:36,909 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:10:36,909 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:10:36,909 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:10:36,909 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:10:36,910 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:10:36,910 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:10:36,910 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:10:36,910 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:10:36,910 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:10:36,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:10:36,910 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:10:36,911 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:10:36,911 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:10:36,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:10:36,911 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:10:36,911 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:10:36,911 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:10:36,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:10:36,911 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:10:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:10:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:10:36,913 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:10:36,913 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:10:36,913 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:10:36,914 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:10:36,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:10:36,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:10:36,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:10:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:10:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:10:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:10:36,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:10:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:10:36,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:10:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:10:36,922 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:10:36,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:10:36,922 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:10:36,922 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:10:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:10:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:10:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:10:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:10:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:10:36,924 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:10:36,930 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:10:36,930 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:10:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:10:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:10:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:10:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:10:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:10:36,932 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:10:36,932 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:10:36,932 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:10:36,933 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:10:36,933 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:10:36,933 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:10:36,934 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:10:36,934 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:10:36,934 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:10:36,935 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:10:36,935 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:10:36,935 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:10:36,935 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:10:36,935 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:10:36,935 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:10:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:10:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:10:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:10:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:10:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:10:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:10:36,937 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:10:36,937 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:10:36,937 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:10:36,937 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:10:36,937 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:10:36,937 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:10:36,937 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:10:36,938 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:10:36,938 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:10:36,938 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:10:36,938 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:10:36,938 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:10:36,938 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:10:36,938 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:10:36,939 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:10:36,939 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:10:36,939 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:10:36,939 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:10:36,940 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:10:36,940 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:10:36,940 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:10:36,940 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:10:36,940 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:10:36,940 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:10:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:10:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:10:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:10:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:10:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:10:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:10:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:10:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:10:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:10:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:10:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:10:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:10:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:10:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:10:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:10:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:10:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:10:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-13 23:10:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:10:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:10:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:10:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:10:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:10:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:10:36,945 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:10:36,945 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:10:36,945 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:10:36,945 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:10:36,945 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:10:36,945 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:10:36,946 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:10:36,946 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:10:36,946 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:10:36,946 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:10:36,946 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:10:36,946 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:10:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:10:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:10:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:10:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:10:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:10:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:10:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-13 23:10:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:10:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:10:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:10:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:10:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:10:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:10:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:10:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:10:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:10:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:10:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:10:36,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:10:41,375 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:10:41,375 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:10:41,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:10:41 BoogieIcfgContainer [2019-10-13 23:10:41,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:10:41,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:10:41,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:10:41,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:10:41,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:10:35" (1/3) ... [2019-10-13 23:10:41,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28af09da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:10:41, skipping insertion in model container [2019-10-13 23:10:41,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:36" (2/3) ... [2019-10-13 23:10:41,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28af09da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:10:41, skipping insertion in model container [2019-10-13 23:10:41,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:10:41" (3/3) ... [2019-10-13 23:10:41,385 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product33.cil.c [2019-10-13 23:10:41,394 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:10:41,403 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:10:41,414 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:10:41,449 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:10:41,450 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:10:41,450 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:10:41,450 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:10:41,450 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:10:41,452 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:10:41,452 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:10:41,452 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:10:41,487 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states. [2019-10-13 23:10:41,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-13 23:10:41,503 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:41,504 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:41,507 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:41,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:41,515 INFO L82 PathProgramCache]: Analyzing trace with hash -155292595, now seen corresponding path program 1 times [2019-10-13 23:10:41,525 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:41,525 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375129012] [2019-10-13 23:10:41,526 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:41,526 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:41,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:42,165 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 23:10:42,165 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375129012] [2019-10-13 23:10:42,166 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:42,166 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:10:42,167 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786083713] [2019-10-13 23:10:42,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:10:42,172 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:42,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:10:42,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:10:42,188 INFO L87 Difference]: Start difference. First operand 434 states. Second operand 2 states. [2019-10-13 23:10:42,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:42,279 INFO L93 Difference]: Finished difference Result 669 states and 793 transitions. [2019-10-13 23:10:42,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:10:42,281 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 129 [2019-10-13 23:10:42,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:42,301 INFO L225 Difference]: With dead ends: 669 [2019-10-13 23:10:42,301 INFO L226 Difference]: Without dead ends: 413 [2019-10-13 23:10:42,310 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 23:10:42,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-10-13 23:10:42,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2019-10-13 23:10:42,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-10-13 23:10:42,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 488 transitions. [2019-10-13 23:10:42,452 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 488 transitions. Word has length 129 [2019-10-13 23:10:42,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:42,456 INFO L462 AbstractCegarLoop]: Abstraction has 413 states and 488 transitions. [2019-10-13 23:10:42,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:10:42,456 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 488 transitions. [2019-10-13 23:10:42,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-13 23:10:42,463 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:42,464 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:42,464 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:42,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:42,465 INFO L82 PathProgramCache]: Analyzing trace with hash 462079243, now seen corresponding path program 1 times [2019-10-13 23:10:42,465 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:42,465 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067454190] [2019-10-13 23:10:42,465 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:42,465 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:42,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:42,733 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 23:10:42,733 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067454190] [2019-10-13 23:10:42,734 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:42,734 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:10:42,734 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24415230] [2019-10-13 23:10:42,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:10:42,737 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:42,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:10:42,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:10:42,737 INFO L87 Difference]: Start difference. First operand 413 states and 488 transitions. Second operand 3 states. [2019-10-13 23:10:42,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:42,779 INFO L93 Difference]: Finished difference Result 654 states and 764 transitions. [2019-10-13 23:10:42,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:10:42,780 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2019-10-13 23:10:42,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:42,785 INFO L225 Difference]: With dead ends: 654 [2019-10-13 23:10:42,786 INFO L226 Difference]: Without dead ends: 415 [2019-10-13 23:10:42,789 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 23:10:42,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2019-10-13 23:10:42,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2019-10-13 23:10:42,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2019-10-13 23:10:42,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 490 transitions. [2019-10-13 23:10:42,915 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 490 transitions. Word has length 130 [2019-10-13 23:10:42,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:42,917 INFO L462 AbstractCegarLoop]: Abstraction has 415 states and 490 transitions. [2019-10-13 23:10:42,917 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:10:42,918 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 490 transitions. [2019-10-13 23:10:42,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-13 23:10:42,922 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:42,922 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:42,922 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:42,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:42,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1596593104, now seen corresponding path program 1 times [2019-10-13 23:10:42,923 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:42,923 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837970230] [2019-10-13 23:10:42,923 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:42,923 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:42,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:43,119 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:10:43,120 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837970230] [2019-10-13 23:10:43,120 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:43,120 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:10:43,120 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955181309] [2019-10-13 23:10:43,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:10:43,123 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:43,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:10:43,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:10:43,123 INFO L87 Difference]: Start difference. First operand 415 states and 490 transitions. Second operand 3 states. [2019-10-13 23:10:43,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:43,174 INFO L93 Difference]: Finished difference Result 814 states and 990 transitions. [2019-10-13 23:10:43,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:10:43,174 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-13 23:10:43,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:43,183 INFO L225 Difference]: With dead ends: 814 [2019-10-13 23:10:43,183 INFO L226 Difference]: Without dead ends: 457 [2019-10-13 23:10:43,187 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 23:10:43,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2019-10-13 23:10:43,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 456. [2019-10-13 23:10:43,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2019-10-13 23:10:43,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 561 transitions. [2019-10-13 23:10:43,227 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 561 transitions. Word has length 142 [2019-10-13 23:10:43,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:43,228 INFO L462 AbstractCegarLoop]: Abstraction has 456 states and 561 transitions. [2019-10-13 23:10:43,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:10:43,228 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 561 transitions. [2019-10-13 23:10:43,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-13 23:10:43,235 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:43,235 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:43,235 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:43,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:43,236 INFO L82 PathProgramCache]: Analyzing trace with hash -3337637, now seen corresponding path program 1 times [2019-10-13 23:10:43,236 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:43,238 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664168164] [2019-10-13 23:10:43,238 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:43,238 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:43,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:43,825 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:10:43,826 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664168164] [2019-10-13 23:10:43,826 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:43,826 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-13 23:10:43,827 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221667159] [2019-10-13 23:10:43,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-13 23:10:43,828 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:43,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-13 23:10:43,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2019-10-13 23:10:43,830 INFO L87 Difference]: Start difference. First operand 456 states and 561 transitions. Second operand 21 states. [2019-10-13 23:10:53,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:53,573 INFO L93 Difference]: Finished difference Result 952 states and 1139 transitions. [2019-10-13 23:10:53,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-13 23:10:53,574 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 143 [2019-10-13 23:10:53,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:53,579 INFO L225 Difference]: With dead ends: 952 [2019-10-13 23:10:53,579 INFO L226 Difference]: Without dead ends: 707 [2019-10-13 23:10:53,581 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2019-10-13 23:10:53,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-10-13 23:10:53,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 700. [2019-10-13 23:10:53,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2019-10-13 23:10:53,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 847 transitions. [2019-10-13 23:10:53,625 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 847 transitions. Word has length 143 [2019-10-13 23:10:53,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:53,626 INFO L462 AbstractCegarLoop]: Abstraction has 700 states and 847 transitions. [2019-10-13 23:10:53,626 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-13 23:10:53,626 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 847 transitions. [2019-10-13 23:10:53,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-13 23:10:53,629 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:53,629 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:53,629 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:53,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:53,630 INFO L82 PathProgramCache]: Analyzing trace with hash -478066996, now seen corresponding path program 1 times [2019-10-13 23:10:53,630 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:53,630 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502700776] [2019-10-13 23:10:53,631 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:53,631 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:53,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:54,161 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:10:54,162 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502700776] [2019-10-13 23:10:54,162 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:54,163 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-13 23:10:54,163 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805501740] [2019-10-13 23:10:54,164 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-13 23:10:54,164 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:54,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-13 23:10:54,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2019-10-13 23:10:54,166 INFO L87 Difference]: Start difference. First operand 700 states and 847 transitions. Second operand 23 states. [2019-10-13 23:10:56,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:56,129 INFO L93 Difference]: Finished difference Result 778 states and 937 transitions. [2019-10-13 23:10:56,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-13 23:10:56,129 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 149 [2019-10-13 23:10:56,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:56,133 INFO L225 Difference]: With dead ends: 778 [2019-10-13 23:10:56,134 INFO L226 Difference]: Without dead ends: 742 [2019-10-13 23:10:56,135 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 23:10:56,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2019-10-13 23:10:56,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 737. [2019-10-13 23:10:56,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2019-10-13 23:10:56,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 884 transitions. [2019-10-13 23:10:56,174 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 884 transitions. Word has length 149 [2019-10-13 23:10:56,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:56,175 INFO L462 AbstractCegarLoop]: Abstraction has 737 states and 884 transitions. [2019-10-13 23:10:56,175 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-13 23:10:56,176 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 884 transitions. [2019-10-13 23:10:56,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2019-10-13 23:10:56,181 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:56,181 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:56,182 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:56,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:56,182 INFO L82 PathProgramCache]: Analyzing trace with hash 266761706, now seen corresponding path program 1 times [2019-10-13 23:10:56,182 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:56,182 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552429042] [2019-10-13 23:10:56,183 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:56,183 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:56,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:56,988 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 23:10:56,989 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552429042] [2019-10-13 23:10:56,990 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:56,991 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-13 23:10:56,991 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207541408] [2019-10-13 23:10:56,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-13 23:10:56,993 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:56,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-13 23:10:56,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2019-10-13 23:10:56,995 INFO L87 Difference]: Start difference. First operand 737 states and 884 transitions. Second operand 28 states. [2019-10-13 23:11:07,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:07,739 INFO L93 Difference]: Finished difference Result 1492 states and 1768 transitions. [2019-10-13 23:11:07,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-10-13 23:11:07,740 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 266 [2019-10-13 23:11:07,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:07,747 INFO L225 Difference]: With dead ends: 1492 [2019-10-13 23:11:07,747 INFO L226 Difference]: Without dead ends: 1293 [2019-10-13 23:11:07,749 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=315, Invalid=3717, Unknown=0, NotChecked=0, Total=4032 [2019-10-13 23:11:07,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2019-10-13 23:11:07,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1222. [2019-10-13 23:11:07,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1222 states. [2019-10-13 23:11:07,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1439 transitions. [2019-10-13 23:11:07,815 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1439 transitions. Word has length 266 [2019-10-13 23:11:07,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:07,816 INFO L462 AbstractCegarLoop]: Abstraction has 1222 states and 1439 transitions. [2019-10-13 23:11:07,816 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-13 23:11:07,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1439 transitions. [2019-10-13 23:11:07,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2019-10-13 23:11:07,823 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:07,823 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:07,824 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:07,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:07,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1018697435, now seen corresponding path program 1 times [2019-10-13 23:11:07,824 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:07,825 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348293757] [2019-10-13 23:11:07,825 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:07,825 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:07,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:08,066 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 23:11:08,067 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348293757] [2019-10-13 23:11:08,067 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:08,067 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:11:08,067 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377801878] [2019-10-13 23:11:08,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:11:08,068 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:08,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:11:08,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:11:08,069 INFO L87 Difference]: Start difference. First operand 1222 states and 1439 transitions. Second operand 10 states. [2019-10-13 23:11:08,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:08,150 INFO L93 Difference]: Finished difference Result 1977 states and 2273 transitions. [2019-10-13 23:11:08,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:11:08,151 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 270 [2019-10-13 23:11:08,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:08,158 INFO L225 Difference]: With dead ends: 1977 [2019-10-13 23:11:08,158 INFO L226 Difference]: Without dead ends: 1262 [2019-10-13 23:11:08,160 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:11:08,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2019-10-13 23:11:08,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1230. [2019-10-13 23:11:08,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1230 states. [2019-10-13 23:11:08,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1447 transitions. [2019-10-13 23:11:08,218 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1447 transitions. Word has length 270 [2019-10-13 23:11:08,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:08,219 INFO L462 AbstractCegarLoop]: Abstraction has 1230 states and 1447 transitions. [2019-10-13 23:11:08,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:11:08,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1447 transitions. [2019-10-13 23:11:08,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2019-10-13 23:11:08,226 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:08,227 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:08,227 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:08,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:08,227 INFO L82 PathProgramCache]: Analyzing trace with hash 508182254, now seen corresponding path program 1 times [2019-10-13 23:11:08,228 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:08,228 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427201544] [2019-10-13 23:11:08,228 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:08,228 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:08,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:08,630 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 23:11:08,631 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427201544] [2019-10-13 23:11:08,631 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:08,632 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 23:11:08,632 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407603646] [2019-10-13 23:11:08,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:11:08,635 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:08,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:11:08,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:11:08,636 INFO L87 Difference]: Start difference. First operand 1230 states and 1447 transitions. Second operand 11 states. [2019-10-13 23:11:11,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:11,236 INFO L93 Difference]: Finished difference Result 1897 states and 2138 transitions. [2019-10-13 23:11:11,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 23:11:11,237 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 272 [2019-10-13 23:11:11,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:11,246 INFO L225 Difference]: With dead ends: 1897 [2019-10-13 23:11:11,246 INFO L226 Difference]: Without dead ends: 1566 [2019-10-13 23:11:11,248 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:11:11,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2019-10-13 23:11:11,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1544. [2019-10-13 23:11:11,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1544 states. [2019-10-13 23:11:11,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 1756 transitions. [2019-10-13 23:11:11,330 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 1756 transitions. Word has length 272 [2019-10-13 23:11:11,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:11,330 INFO L462 AbstractCegarLoop]: Abstraction has 1544 states and 1756 transitions. [2019-10-13 23:11:11,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:11:11,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 1756 transitions. [2019-10-13 23:11:11,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2019-10-13 23:11:11,340 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:11,340 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:11,340 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:11,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:11,341 INFO L82 PathProgramCache]: Analyzing trace with hash 189779639, now seen corresponding path program 1 times [2019-10-13 23:11:11,341 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:11,341 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555874633] [2019-10-13 23:11:11,341 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:11,342 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:11,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat