/usr/bin/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_spec6_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:23:08,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:23:08,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:23:08,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:23:08,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:23:08,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:23:08,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:23:08,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:23:08,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:23:08,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:23:08,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:23:08,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:23:08,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:23:08,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:23:08,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:23:08,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:23:08,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:23:08,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:23:08,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:23:08,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:23:08,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:23:08,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:23:08,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:23:08,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:23:08,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:23:08,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:23:08,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:23:08,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:23:08,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:23:08,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:23:08,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:23:08,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:23:08,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:23:08,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:23:08,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:23:08,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:23:08,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:23:08,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:23:08,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:23:08,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:23:08,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:23:08,310 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 [2019-11-07 04:23:08,323 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:23:08,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:23:08,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:23:08,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:23:08,325 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:23:08,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:23:08,326 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:23:08,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:23:08,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:23:08,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:23:08,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:23:08,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:23:08,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:23:08,327 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:23:08,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:23:08,327 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:23:08,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:23:08,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:23:08,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:23:08,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:23:08,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:23:08,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:23:08,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:23:08,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:23:08,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:23:08,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:23:08,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:23:08,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:23:08,330 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 [2019-11-07 04:23:08,600 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:23:08,623 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:23:08,626 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:23:08,627 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:23:08,628 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:23:08,629 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c [2019-11-07 04:23:08,705 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/764ef2d95/36fffe61f4564dd0b982111d2ae6aa5a/FLAGc576d3613 [2019-11-07 04:23:09,351 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:23:09,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c [2019-11-07 04:23:09,394 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/764ef2d95/36fffe61f4564dd0b982111d2ae6aa5a/FLAGc576d3613 [2019-11-07 04:23:09,521 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/764ef2d95/36fffe61f4564dd0b982111d2ae6aa5a [2019-11-07 04:23:09,530 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:23:09,531 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:23:09,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:23:09,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:23:09,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:23:09,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:23:09" (1/1) ... [2019-11-07 04:23:09,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7297fca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:09, skipping insertion in model container [2019-11-07 04:23:09,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:23:09" (1/1) ... [2019-11-07 04:23:09,548 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:23:09,642 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:23:10,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:23:10,326 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:23:10,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:23:10,579 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:23:10,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:10 WrapperNode [2019-11-07 04:23:10,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:23:10,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:23:10,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:23:10,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:23:10,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:10" (1/1) ... [2019-11-07 04:23:10,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:10" (1/1) ... [2019-11-07 04:23:10,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:10" (1/1) ... [2019-11-07 04:23:10,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:10" (1/1) ... [2019-11-07 04:23:10,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:10" (1/1) ... [2019-11-07 04:23:10,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:10" (1/1) ... [2019-11-07 04:23:10,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:10" (1/1) ... [2019-11-07 04:23:10,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:23:10,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:23:10,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:23:10,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:23:10,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:23:10,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:23:10,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:23:10,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:23:10,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:23:10,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:23:10,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:23:10,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:23:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:23:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:23:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:23:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:23:10,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:23:10,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:23:10,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:23:10,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:23:10,876 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:23:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:23:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:23:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:23:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:23:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:23:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:23:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:23:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:23:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:23:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:23:10,881 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:23:10,881 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:23:10,881 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:23:10,881 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 04:23:10,881 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:23:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:23:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:23:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:23:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:23:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:23:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:23:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:23:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:23:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:23:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:23:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:23:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:23:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:23:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:23:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:23:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:23:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:23:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:23:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:23:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:23:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:23:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:23:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:23:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:23:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:23:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:23:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:23:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:23:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:23:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:23:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:23:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:23:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:23:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:23:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:23:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:23:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:23:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:23:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:23:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:23:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:23:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:23:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:23:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:23:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:23:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:23:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:23:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:23:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:23:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:23:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:23:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:23:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:23:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:23:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 04:23:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 04:23:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:23:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:23:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:23:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:23:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:23:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:23:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:23:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:23:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:23:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:23:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:23:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:23:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:23:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:23:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 04:23:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-11-07 04:23:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 04:23:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:23:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:23:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:23:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:23:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:23:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:23:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:23:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:23:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:23:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:23:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 04:23:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:23:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:23:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:23:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:23:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:23:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:23:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:23:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:23:10,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:23:10,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:23:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:23:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:23:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:23:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:23:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:23:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:23:10,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:23:10,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:23:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:23:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:23:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:23:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:23:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:23:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:23:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:23:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:23:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:23:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:23:10,910 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:23:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:23:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:23:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:23:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:23:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:23:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:23:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:23:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:23:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:23:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:23:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:23:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:23:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:23:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:23:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:23:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:23:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:23:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:23:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:23:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:23:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:23:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:23:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:23:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:23:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:23:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:23:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:23:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:23:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:23:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:23:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:23:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:23:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 04:23:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:23:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:23:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:23:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:23:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:23:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:23:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:23:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:23:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:23:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:23:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:23:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:23:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:23:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:23:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:23:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:23:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:23:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:23:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:23:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:23:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:23:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:23:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:23:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:23:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:23:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:23:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:23:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:23:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:23:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:23:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:23:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:23:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:23:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:23:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:23:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:23:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:23:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:23:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:23:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:23:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:23:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:23:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:23:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:23:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:23:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 04:23:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 04:23:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:23:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:23:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:23:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:23:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:23:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:23:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:23:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:23:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:23:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:23:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:23:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:23:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:23:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 04:23:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:23:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:23:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:23:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 04:23:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-11-07 04:23:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 04:23:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:23:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:23:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:23:15,618 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:23:15,619 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:23:15,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:23:15 BoogieIcfgContainer [2019-11-07 04:23:15,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:23:15,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:23:15,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:23:15,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:23:15,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:23:09" (1/3) ... [2019-11-07 04:23:15,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd9ce57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:23:15, skipping insertion in model container [2019-11-07 04:23:15,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:23:10" (2/3) ... [2019-11-07 04:23:15,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd9ce57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:23:15, skipping insertion in model container [2019-11-07 04:23:15,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:23:15" (3/3) ... [2019-11-07 04:23:15,626 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product26.cil.c [2019-11-07 04:23:15,636 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:23:15,646 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:23:15,657 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:23:15,690 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:23:15,690 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:23:15,691 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:23:15,691 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:23:15,691 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:23:15,691 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:23:15,691 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:23:15,691 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:23:15,721 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states. [2019-11-07 04:23:15,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-11-07 04:23:15,739 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:15,741 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:23:15,743 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:15,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:15,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1454161030, now seen corresponding path program 1 times [2019-11-07 04:23:15,758 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:15,759 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559559189] [2019-11-07 04:23:15,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:16,457 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:16,458 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559559189] [2019-11-07 04:23:16,458 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:16,459 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:23:16,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602101481] [2019-11-07 04:23:16,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:23:16,468 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:16,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:23:16,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:23:16,487 INFO L87 Difference]: Start difference. First operand 424 states. Second operand 2 states. [2019-11-07 04:23:16,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:16,603 INFO L93 Difference]: Finished difference Result 623 states and 745 transitions. [2019-11-07 04:23:16,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:23:16,605 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 143 [2019-11-07 04:23:16,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:16,641 INFO L225 Difference]: With dead ends: 623 [2019-11-07 04:23:16,641 INFO L226 Difference]: Without dead ends: 397 [2019-11-07 04:23:16,652 INFO L630 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 [2019-11-07 04:23:16,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-11-07 04:23:16,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2019-11-07 04:23:16,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-11-07 04:23:16,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 470 transitions. [2019-11-07 04:23:16,767 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 470 transitions. Word has length 143 [2019-11-07 04:23:16,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:16,772 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 470 transitions. [2019-11-07 04:23:16,772 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:23:16,772 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 470 transitions. [2019-11-07 04:23:16,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-11-07 04:23:16,781 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:16,782 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:23:16,783 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:16,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:16,784 INFO L82 PathProgramCache]: Analyzing trace with hash -960052196, now seen corresponding path program 1 times [2019-11-07 04:23:16,784 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:16,784 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209272065] [2019-11-07 04:23:16,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:16,981 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:16,982 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209272065] [2019-11-07 04:23:16,982 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:16,982 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:23:16,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261113269] [2019-11-07 04:23:16,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:23:16,985 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:16,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:23:16,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:23:16,986 INFO L87 Difference]: Start difference. First operand 397 states and 470 transitions. Second operand 3 states. [2019-11-07 04:23:17,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:17,054 INFO L93 Difference]: Finished difference Result 608 states and 713 transitions. [2019-11-07 04:23:17,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:23:17,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-11-07 04:23:17,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:17,062 INFO L225 Difference]: With dead ends: 608 [2019-11-07 04:23:17,063 INFO L226 Difference]: Without dead ends: 399 [2019-11-07 04:23:17,075 INFO L630 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 [2019-11-07 04:23:17,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-11-07 04:23:17,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2019-11-07 04:23:17,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-11-07 04:23:17,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 472 transitions. [2019-11-07 04:23:17,187 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 472 transitions. Word has length 144 [2019-11-07 04:23:17,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:17,188 INFO L462 AbstractCegarLoop]: Abstraction has 399 states and 472 transitions. [2019-11-07 04:23:17,188 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:23:17,188 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 472 transitions. [2019-11-07 04:23:17,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-11-07 04:23:17,196 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:17,197 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:23:17,197 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:17,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:17,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1019330553, now seen corresponding path program 1 times [2019-11-07 04:23:17,198 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:17,198 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100463086] [2019-11-07 04:23:17,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:17,406 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:17,406 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100463086] [2019-11-07 04:23:17,407 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:17,407 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:23:17,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737070808] [2019-11-07 04:23:17,410 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:23:17,410 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:17,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:23:17,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:23:17,411 INFO L87 Difference]: Start difference. First operand 399 states and 472 transitions. Second operand 3 states. [2019-11-07 04:23:17,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:17,468 INFO L93 Difference]: Finished difference Result 784 states and 957 transitions. [2019-11-07 04:23:17,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:23:17,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-11-07 04:23:17,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:17,477 INFO L225 Difference]: With dead ends: 784 [2019-11-07 04:23:17,477 INFO L226 Difference]: Without dead ends: 443 [2019-11-07 04:23:17,479 INFO L630 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 [2019-11-07 04:23:17,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2019-11-07 04:23:17,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 442. [2019-11-07 04:23:17,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-11-07 04:23:17,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 546 transitions. [2019-11-07 04:23:17,522 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 546 transitions. Word has length 156 [2019-11-07 04:23:17,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:17,524 INFO L462 AbstractCegarLoop]: Abstraction has 442 states and 546 transitions. [2019-11-07 04:23:17,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:23:17,524 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 546 transitions. [2019-11-07 04:23:17,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-11-07 04:23:17,532 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:17,533 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:23:17,533 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:17,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:17,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1615276318, now seen corresponding path program 1 times [2019-11-07 04:23:17,534 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:17,535 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84640922] [2019-11-07 04:23:17,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:18,304 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:23:18,305 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84640922] [2019-11-07 04:23:18,305 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:18,305 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-11-07 04:23:18,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009555361] [2019-11-07 04:23:18,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-07 04:23:18,307 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:18,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-07 04:23:18,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-11-07 04:23:18,311 INFO L87 Difference]: Start difference. First operand 442 states and 546 transitions. Second operand 24 states. [2019-11-07 04:23:27,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:27,881 INFO L93 Difference]: Finished difference Result 1204 states and 1482 transitions. [2019-11-07 04:23:27,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-11-07 04:23:27,882 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 157 [2019-11-07 04:23:27,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:27,896 INFO L225 Difference]: With dead ends: 1204 [2019-11-07 04:23:27,896 INFO L226 Difference]: Without dead ends: 1003 [2019-11-07 04:23:27,901 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=272, Invalid=2484, Unknown=0, NotChecked=0, Total=2756 [2019-11-07 04:23:27,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2019-11-07 04:23:27,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 990. [2019-11-07 04:23:27,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 990 states. [2019-11-07 04:23:27,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1204 transitions. [2019-11-07 04:23:27,982 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1204 transitions. Word has length 157 [2019-11-07 04:23:27,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:27,985 INFO L462 AbstractCegarLoop]: Abstraction has 990 states and 1204 transitions. [2019-11-07 04:23:27,985 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-07 04:23:27,985 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1204 transitions. [2019-11-07 04:23:28,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-11-07 04:23:28,041 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:28,041 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:23:28,042 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:28,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:28,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1771186363, now seen corresponding path program 1 times [2019-11-07 04:23:28,043 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:28,044 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547303722] [2019-11-07 04:23:28,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:28,460 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:23:28,461 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547303722] [2019-11-07 04:23:28,461 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:28,462 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-11-07 04:23:28,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101962013] [2019-11-07 04:23:28,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 04:23:28,463 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:28,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 04:23:28,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-07 04:23:28,464 INFO L87 Difference]: Start difference. First operand 990 states and 1204 transitions. Second operand 14 states. [2019-11-07 04:23:33,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:33,225 INFO L93 Difference]: Finished difference Result 2265 states and 2758 transitions. [2019-11-07 04:23:33,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-07 04:23:33,225 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 163 [2019-11-07 04:23:33,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:33,245 INFO L225 Difference]: With dead ends: 2265 [2019-11-07 04:23:33,245 INFO L226 Difference]: Without dead ends: 1884 [2019-11-07 04:23:33,248 INFO L630 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 [2019-11-07 04:23:33,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2019-11-07 04:23:33,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1836. [2019-11-07 04:23:33,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1836 states. [2019-11-07 04:23:33,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 2223 transitions. [2019-11-07 04:23:33,361 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 2223 transitions. Word has length 163 [2019-11-07 04:23:33,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:33,362 INFO L462 AbstractCegarLoop]: Abstraction has 1836 states and 2223 transitions. [2019-11-07 04:23:33,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 04:23:33,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 2223 transitions. [2019-11-07 04:23:33,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-11-07 04:23:33,367 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:33,367 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:23:33,367 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:33,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:33,368 INFO L82 PathProgramCache]: Analyzing trace with hash -720526917, now seen corresponding path program 1 times [2019-11-07 04:23:33,368 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:33,368 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784116760] [2019-11-07 04:23:33,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:33,527 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:33,528 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784116760] [2019-11-07 04:23:33,528 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:33,528 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:23:33,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918907465] [2019-11-07 04:23:33,529 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:23:33,529 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:33,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:23:33,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:23:33,530 INFO L87 Difference]: Start difference. First operand 1836 states and 2223 transitions. Second operand 3 states. [2019-11-07 04:23:33,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:33,623 INFO L93 Difference]: Finished difference Result 3732 states and 4588 transitions. [2019-11-07 04:23:33,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:23:33,623 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-11-07 04:23:33,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:33,635 INFO L225 Difference]: With dead ends: 3732 [2019-11-07 04:23:33,636 INFO L226 Difference]: Without dead ends: 1954 [2019-11-07 04:23:33,642 INFO L630 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 [2019-11-07 04:23:33,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2019-11-07 04:23:33,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1952. [2019-11-07 04:23:33,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1952 states. [2019-11-07 04:23:33,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1952 states to 1952 states and 2423 transitions. [2019-11-07 04:23:33,751 INFO L78 Accepts]: Start accepts. Automaton has 1952 states and 2423 transitions. Word has length 178 [2019-11-07 04:23:33,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:33,752 INFO L462 AbstractCegarLoop]: Abstraction has 1952 states and 2423 transitions. [2019-11-07 04:23:33,752 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:23:33,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1952 states and 2423 transitions. [2019-11-07 04:23:33,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-11-07 04:23:33,756 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:33,757 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:23:33,757 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:33,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:33,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1146924668, now seen corresponding path program 1 times [2019-11-07 04:23:33,757 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:33,758 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657413210] [2019-11-07 04:23:33,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:33,954 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:33,955 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657413210] [2019-11-07 04:23:33,955 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:33,955 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:23:33,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49415185] [2019-11-07 04:23:33,956 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:23:33,956 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:33,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:23:33,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:23:33,957 INFO L87 Difference]: Start difference. First operand 1952 states and 2423 transitions. Second operand 3 states. [2019-11-07 04:23:34,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:34,062 INFO L93 Difference]: Finished difference Result 4071 states and 5173 transitions. [2019-11-07 04:23:34,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:23:34,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2019-11-07 04:23:34,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:34,077 INFO L225 Difference]: With dead ends: 4071 [2019-11-07 04:23:34,077 INFO L226 Difference]: Without dead ends: 2177 [2019-11-07 04:23:34,084 INFO L630 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 [2019-11-07 04:23:34,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2177 states. [2019-11-07 04:23:34,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2177 to 2175. [2019-11-07 04:23:34,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2175 states. [2019-11-07 04:23:34,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 2175 states and 2805 transitions. [2019-11-07 04:23:34,243 INFO L78 Accepts]: Start accepts. Automaton has 2175 states and 2805 transitions. Word has length 179 [2019-11-07 04:23:34,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:34,244 INFO L462 AbstractCegarLoop]: Abstraction has 2175 states and 2805 transitions. [2019-11-07 04:23:34,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:23:34,244 INFO L276 IsEmpty]: Start isEmpty. Operand 2175 states and 2805 transitions. [2019-11-07 04:23:34,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-11-07 04:23:34,253 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:34,253 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:23:34,253 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:34,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:34,254 INFO L82 PathProgramCache]: Analyzing trace with hash 370854203, now seen corresponding path program 1 times [2019-11-07 04:23:34,254 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:34,255 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370386749] [2019-11-07 04:23:34,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:34,681 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:34,681 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370386749] [2019-11-07 04:23:34,682 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:34,682 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:23:34,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350540623] [2019-11-07 04:23:34,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:23:34,684 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:34,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:23:34,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:23:34,685 INFO L87 Difference]: Start difference. First operand 2175 states and 2805 transitions. Second operand 12 states. [2019-11-07 04:23:40,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:40,322 INFO L93 Difference]: Finished difference Result 4552 states and 6039 transitions. [2019-11-07 04:23:40,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-07 04:23:40,322 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 180 [2019-11-07 04:23:40,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:40,343 INFO L225 Difference]: With dead ends: 4552 [2019-11-07 04:23:40,344 INFO L226 Difference]: Without dead ends: 3373 [2019-11-07 04:23:40,350 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-11-07 04:23:40,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2019-11-07 04:23:40,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 2610. [2019-11-07 04:23:40,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2610 states. [2019-11-07 04:23:40,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 3550 transitions. [2019-11-07 04:23:40,533 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 3550 transitions. Word has length 180 [2019-11-07 04:23:40,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:40,536 INFO L462 AbstractCegarLoop]: Abstraction has 2610 states and 3550 transitions. [2019-11-07 04:23:40,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 04:23:40,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 3550 transitions. [2019-11-07 04:23:40,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-11-07 04:23:40,548 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:40,549 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:23:40,549 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:40,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:40,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1471678325, now seen corresponding path program 1 times [2019-11-07 04:23:40,550 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:40,550 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254048570] [2019-11-07 04:23:40,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:40,716 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:40,717 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254048570] [2019-11-07 04:23:40,717 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:40,718 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:23:40,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824008983] [2019-11-07 04:23:40,719 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:23:40,719 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:40,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:23:40,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:23:40,720 INFO L87 Difference]: Start difference. First operand 2610 states and 3550 transitions. Second operand 3 states. [2019-11-07 04:23:40,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:23:40,832 INFO L93 Difference]: Finished difference Result 5467 states and 7592 transitions. [2019-11-07 04:23:40,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:23:40,833 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-11-07 04:23:40,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:23:40,850 INFO L225 Difference]: With dead ends: 5467 [2019-11-07 04:23:40,851 INFO L226 Difference]: Without dead ends: 2919 [2019-11-07 04:23:40,860 INFO L630 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 [2019-11-07 04:23:40,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states. [2019-11-07 04:23:41,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 2918. [2019-11-07 04:23:41,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2918 states. [2019-11-07 04:23:41,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 4086 transitions. [2019-11-07 04:23:41,049 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 4086 transitions. Word has length 181 [2019-11-07 04:23:41,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:23:41,049 INFO L462 AbstractCegarLoop]: Abstraction has 2918 states and 4086 transitions. [2019-11-07 04:23:41,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:23:41,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 4086 transitions. [2019-11-07 04:23:41,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-11-07 04:23:41,061 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:23:41,062 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:23:41,062 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:23:41,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:23:41,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1766899352, now seen corresponding path program 1 times [2019-11-07 04:23:41,063 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:23:41,063 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002804085] [2019-11-07 04:23:41,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:23:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:23:41,412 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:23:41,412 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002804085] [2019-11-07 04:23:41,413 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:23:41,414 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:23:41,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221889010] [2019-11-07 04:23:41,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:23:41,415 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:23:41,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:23:41,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:23:41,416 INFO L87 Difference]: Start difference. First operand 2918 states and 4086 transitions. Second operand 12 states.