/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_spec9_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:26:58,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:26:58,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:26:58,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:26:58,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:26:58,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:26:58,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:26:58,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:26:58,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:26:58,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:26:58,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:26:58,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:26:58,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:26:58,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:26:58,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:26:58,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:26:58,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:26:58,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:26:58,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:26:58,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:26:58,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:26:58,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:26:58,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:26:58,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:26:58,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:26:58,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:26:58,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:26:58,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:26:58,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:26:58,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:26:58,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:26:58,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:26:58,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:26:58,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:26:58,330 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:26:58,330 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:26:58,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:26:58,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:26:58,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:26:58,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:26:58,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:26:58,334 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 04:26:58,347 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:26:58,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:26:58,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:26:58,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:26:58,349 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:26:58,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:26:58,350 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:26:58,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:26:58,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:26:58,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:26:58,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:26:58,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:26:58,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:26:58,351 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:26:58,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:26:58,351 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:26:58,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:26:58,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:26:58,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:26:58,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:26:58,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:26:58,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:26:58,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:26:58,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:26:58,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:26:58,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:26:58,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:26:58,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:26:58,354 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 04:26:58,650 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:26:58,664 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:26:58,668 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:26:58,669 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:26:58,670 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:26:58,670 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product16.cil.c [2019-11-07 04:26:58,755 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97635b781/13d5fad191e04968adb416070c02a1f3/FLAGa7edea454 [2019-11-07 04:26:59,460 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:26:59,461 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product16.cil.c [2019-11-07 04:26:59,482 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97635b781/13d5fad191e04968adb416070c02a1f3/FLAGa7edea454 [2019-11-07 04:26:59,598 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97635b781/13d5fad191e04968adb416070c02a1f3 [2019-11-07 04:26:59,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:26:59,609 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:26:59,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:26:59,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:26:59,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:26:59,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:26:59" (1/1) ... [2019-11-07 04:26:59,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@576dd075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:59, skipping insertion in model container [2019-11-07 04:26:59,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:26:59" (1/1) ... [2019-11-07 04:26:59,626 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:26:59,710 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:27:00,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:27:00,566 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:27:00,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:27:00,805 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:27:00,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00 WrapperNode [2019-11-07 04:27:00,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:27:00,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:27:00,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:27:00,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:27:00,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (1/1) ... [2019-11-07 04:27:00,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (1/1) ... [2019-11-07 04:27:00,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (1/1) ... [2019-11-07 04:27:00,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (1/1) ... [2019-11-07 04:27:00,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (1/1) ... [2019-11-07 04:27:00,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (1/1) ... [2019-11-07 04:27:00,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (1/1) ... [2019-11-07 04:27:01,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:27:01,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:27:01,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:27:01,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:27:01,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (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 04:27:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:27:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:27:01,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:27:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-11-07 04:27:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-11-07 04:27:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:27:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:27:01,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:27:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:27:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:27:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:27:01,070 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:27:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:27:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:27:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:27:01,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:27:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:27:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:27:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:27:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:27:01,072 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:27:01,074 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:27:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:27:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:27:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:27:01,075 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:27:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:27:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:27:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:27:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:27:01,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:27:01,077 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:27:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:27:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:27:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:27:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:27:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:27:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:27:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:27:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:27:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:27:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:27:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:27:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 04:27:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 04:27:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:27:01,080 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:27:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:27:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:27:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:27:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:27:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:27:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:27:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:27:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:27:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:27:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:27:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:27:01,083 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:27:01,083 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:27:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:27:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:27:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:27:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:27:01,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:27:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:27:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:27:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:27:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:27:01,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:27:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:27:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:27:01,086 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:27:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:27:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:27:01,087 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:27:01,088 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:27:01,088 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:27:01,088 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:27:01,089 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:27:01,089 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:27:01,090 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:27:01,090 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:27:01,090 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:27:01,091 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:27:01,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:27:01,091 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:27:01,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:27:01,092 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:27:01,092 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:27:01,092 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:27:01,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:27:01,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:27:01,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:27:01,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:27:01,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:27:01,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:27:01,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:27:01,094 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:27:01,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:27:01,094 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:27:01,094 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:27:01,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:27:01,095 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:27:01,095 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:27:01,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:27:01,095 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:27:01,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:27:01,095 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:27:01,096 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:27:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:27:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:27:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:27:01,096 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:27:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:27:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:27:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-11-07 04:27:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:27:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-11-07 04:27:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:27:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:27:01,099 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:27:01,099 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:27:01,099 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:27:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:27:01,100 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:27:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:27:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:27:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:27:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:27:01,101 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:27:01,102 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:27:01,102 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:27:01,103 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:27:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:27:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:27:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:27:01,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:27:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:27:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:27:01,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:27:01,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:27:01,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:27:01,108 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:27:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:27:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:27:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:27:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:27:01,116 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:27:01,116 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:27:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:27:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:27:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:27:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:27:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:27:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:27:01,117 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:27:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:27:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:27:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:27:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:27:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:27:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:27:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:27:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:27:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:27:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:27:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:27:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:27:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:27:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:27:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:27:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:27:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:27:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:27:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:27:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:27:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:27:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:27:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:27:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:27:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:27:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 04:27:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 04:27:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:27:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:27:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:27:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:27:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:27:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:27:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:27:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:27:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:27:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:27:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:27:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:27:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:27:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:27:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:27:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:27:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:27:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:27:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:27:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:27:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:27:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:27:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:27:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:27:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:27:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:27:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:27:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:27:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:27:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:27:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:27:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:27:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:27:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:27:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:27:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:27:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:27:01,128 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:27:01,128 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:27:01,128 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:27:01,128 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:27:01,128 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:27:01,128 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:27:01,128 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:27:01,129 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:27:01,129 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:27:01,129 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:27:01,129 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:27:01,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:27:01,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:27:01,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:27:05,635 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:27:05,636 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:27:05,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:27:05 BoogieIcfgContainer [2019-11-07 04:27:05,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:27:05,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:27:05,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:27:05,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:27:05,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:26:59" (1/3) ... [2019-11-07 04:27:05,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b613ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:27:05, skipping insertion in model container [2019-11-07 04:27:05,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (2/3) ... [2019-11-07 04:27:05,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b613ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:27:05, skipping insertion in model container [2019-11-07 04:27:05,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:27:05" (3/3) ... [2019-11-07 04:27:05,647 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product16.cil.c [2019-11-07 04:27:05,658 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:27:05,667 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:27:05,680 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:27:05,710 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:27:05,711 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:27:05,711 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:27:05,711 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:27:05,711 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:27:05,711 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:27:05,711 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:27:05,712 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:27:05,740 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2019-11-07 04:27:05,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-11-07 04:27:05,759 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:05,760 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:05,762 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:05,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:05,770 INFO L82 PathProgramCache]: Analyzing trace with hash 773605276, now seen corresponding path program 1 times [2019-11-07 04:27:05,784 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:05,784 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904257160] [2019-11-07 04:27:05,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:06,461 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:27:06,463 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904257160] [2019-11-07 04:27:06,466 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:06,467 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:27:06,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751947792] [2019-11-07 04:27:06,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:27:06,477 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:06,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:27:06,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:27:06,495 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 2 states. [2019-11-07 04:27:06,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:06,601 INFO L93 Difference]: Finished difference Result 510 states and 601 transitions. [2019-11-07 04:27:06,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:27:06,602 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 114 [2019-11-07 04:27:06,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:06,633 INFO L225 Difference]: With dead ends: 510 [2019-11-07 04:27:06,633 INFO L226 Difference]: Without dead ends: 330 [2019-11-07 04:27:06,639 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 04:27:06,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-11-07 04:27:06,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2019-11-07 04:27:06,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-11-07 04:27:06,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 389 transitions. [2019-11-07 04:27:06,717 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 389 transitions. Word has length 114 [2019-11-07 04:27:06,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:06,719 INFO L462 AbstractCegarLoop]: Abstraction has 330 states and 389 transitions. [2019-11-07 04:27:06,719 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:27:06,719 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 389 transitions. [2019-11-07 04:27:06,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-11-07 04:27:06,724 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:06,724 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:06,724 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:06,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:06,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1260048779, now seen corresponding path program 1 times [2019-11-07 04:27:06,725 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:06,725 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089469009] [2019-11-07 04:27:06,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:07,020 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:27:07,021 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089469009] [2019-11-07 04:27:07,021 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:07,021 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:07,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64134287] [2019-11-07 04:27:07,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:07,025 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:07,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:07,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:07,025 INFO L87 Difference]: Start difference. First operand 330 states and 389 transitions. Second operand 3 states. [2019-11-07 04:27:07,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:07,084 INFO L93 Difference]: Finished difference Result 495 states and 573 transitions. [2019-11-07 04:27:07,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:07,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-11-07 04:27:07,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:07,088 INFO L225 Difference]: With dead ends: 495 [2019-11-07 04:27:07,088 INFO L226 Difference]: Without dead ends: 332 [2019-11-07 04:27:07,090 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 04:27:07,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2019-11-07 04:27:07,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2019-11-07 04:27:07,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2019-11-07 04:27:07,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 391 transitions. [2019-11-07 04:27:07,116 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 391 transitions. Word has length 115 [2019-11-07 04:27:07,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:07,116 INFO L462 AbstractCegarLoop]: Abstraction has 332 states and 391 transitions. [2019-11-07 04:27:07,116 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:07,116 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 391 transitions. [2019-11-07 04:27:07,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-11-07 04:27:07,119 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:07,119 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] [2019-11-07 04:27:07,119 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:07,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:07,120 INFO L82 PathProgramCache]: Analyzing trace with hash -599954487, now seen corresponding path program 1 times [2019-11-07 04:27:07,120 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:07,120 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959888779] [2019-11-07 04:27:07,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:07,301 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:27:07,302 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959888779] [2019-11-07 04:27:07,302 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:07,302 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:07,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371914915] [2019-11-07 04:27:07,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:07,304 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:07,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:07,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:07,305 INFO L87 Difference]: Start difference. First operand 332 states and 391 transitions. Second operand 3 states. [2019-11-07 04:27:07,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:07,351 INFO L93 Difference]: Finished difference Result 646 states and 789 transitions. [2019-11-07 04:27:07,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:07,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2019-11-07 04:27:07,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:07,407 INFO L225 Difference]: With dead ends: 646 [2019-11-07 04:27:07,407 INFO L226 Difference]: Without dead ends: 372 [2019-11-07 04:27:07,409 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 04:27:07,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2019-11-07 04:27:07,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2019-11-07 04:27:07,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2019-11-07 04:27:07,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 459 transitions. [2019-11-07 04:27:07,451 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 459 transitions. Word has length 120 [2019-11-07 04:27:07,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:07,452 INFO L462 AbstractCegarLoop]: Abstraction has 371 states and 459 transitions. [2019-11-07 04:27:07,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:07,455 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 459 transitions. [2019-11-07 04:27:07,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-11-07 04:27:07,460 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:07,461 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] [2019-11-07 04:27:07,461 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:07,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:07,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1404061938, now seen corresponding path program 1 times [2019-11-07 04:27:07,461 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:07,462 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689173494] [2019-11-07 04:27:07,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:07,664 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 04:27:07,665 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689173494] [2019-11-07 04:27:07,665 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:07,665 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:07,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928271416] [2019-11-07 04:27:07,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:07,666 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:07,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:07,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:07,667 INFO L87 Difference]: Start difference. First operand 371 states and 459 transitions. Second operand 3 states. [2019-11-07 04:27:07,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:07,699 INFO L93 Difference]: Finished difference Result 567 states and 681 transitions. [2019-11-07 04:27:07,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:07,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2019-11-07 04:27:07,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:07,704 INFO L225 Difference]: With dead ends: 567 [2019-11-07 04:27:07,705 INFO L226 Difference]: Without dead ends: 405 [2019-11-07 04:27:07,706 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 04:27:07,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2019-11-07 04:27:07,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2019-11-07 04:27:07,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-11-07 04:27:07,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 491 transitions. [2019-11-07 04:27:07,744 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 491 transitions. Word has length 121 [2019-11-07 04:27:07,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:07,747 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 491 transitions. [2019-11-07 04:27:07,747 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:07,747 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 491 transitions. [2019-11-07 04:27:07,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-11-07 04:27:07,761 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:07,761 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:07,761 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:07,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:07,762 INFO L82 PathProgramCache]: Analyzing trace with hash 903210349, now seen corresponding path program 1 times [2019-11-07 04:27:07,762 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:07,763 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14810344] [2019-11-07 04:27:07,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:08,124 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-07 04:27:08,125 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14810344] [2019-11-07 04:27:08,125 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:08,125 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 04:27:08,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354945423] [2019-11-07 04:27:08,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 04:27:08,127 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:08,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 04:27:08,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-11-07 04:27:08,128 INFO L87 Difference]: Start difference. First operand 405 states and 491 transitions. Second operand 11 states. [2019-11-07 04:27:10,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:10,814 INFO L93 Difference]: Finished difference Result 481 states and 562 transitions. [2019-11-07 04:27:10,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 04:27:10,814 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2019-11-07 04:27:10,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:10,819 INFO L225 Difference]: With dead ends: 481 [2019-11-07 04:27:10,819 INFO L226 Difference]: Without dead ends: 413 [2019-11-07 04:27:10,820 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:27:10,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-11-07 04:27:10,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2019-11-07 04:27:10,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-11-07 04:27:10,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 493 transitions. [2019-11-07 04:27:10,848 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 493 transitions. Word has length 206 [2019-11-07 04:27:10,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:10,849 INFO L462 AbstractCegarLoop]: Abstraction has 413 states and 493 transitions. [2019-11-07 04:27:10,849 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 04:27:10,849 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 493 transitions. [2019-11-07 04:27:10,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2019-11-07 04:27:10,853 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:10,853 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:10,854 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:10,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:10,854 INFO L82 PathProgramCache]: Analyzing trace with hash -531671626, now seen corresponding path program 1 times [2019-11-07 04:27:10,854 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:10,855 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942495829] [2019-11-07 04:27:10,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:11,398 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-11-07 04:27:11,400 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942495829] [2019-11-07 04:27:11,401 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323651533] [2019-11-07 04:27:11,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:27:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:12,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 3018 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:27:12,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:27:12,302 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-11-07 04:27:12,302 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:27:13,111 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-11-07 04:27:13,112 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1378713245] [2019-11-07 04:27:13,149 INFO L159 IcfgInterpreter]: Started Sifa with 205 locations of interest [2019-11-07 04:27:13,149 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:27:13,161 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:27:13,169 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:27:13,169 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs