java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:10:24,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:10:24,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:10:24,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:10:24,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:10:24,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:10:24,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:10:24,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:10:24,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:10:24,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:10:24,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:10:24,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:10:24,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:10:24,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:10:24,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:10:24,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:10:24,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:10:24,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:10:24,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:10:24,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:10:24,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:10:24,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:10:24,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:10:24,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:10:24,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:10:24,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:10:24,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:10:24,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:10:24,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:10:24,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:10:24,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:10:24,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:10:24,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:10:24,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:10:24,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:10:24,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:10:24,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:10:24,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:10:24,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:10:24,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:10:25,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:10:25,001 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:10:25,021 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:10:25,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:10:25,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:10:25,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:10:25,024 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:10:25,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:10:25,024 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:10:25,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:10:25,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:10:25,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:10:25,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:10:25,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:10:25,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:10:25,026 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:10:25,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:10:25,026 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:10:25,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:10:25,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:10:25,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:10:25,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:10:25,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:10:25,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:10:25,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:10:25,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:10:25,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:10:25,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:10:25,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:10:25,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:10:25,029 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:10:25,319 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:10:25,339 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:10:25,342 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:10:25,344 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:10:25,344 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:10:25,345 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c [2019-10-13 23:10:25,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df0b5a098/5c7aa24ef57242de93e12716541dfc15/FLAG023773898 [2019-10-13 23:10:26,099 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:10:26,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product25.cil.c [2019-10-13 23:10:26,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df0b5a098/5c7aa24ef57242de93e12716541dfc15/FLAG023773898 [2019-10-13 23:10:26,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df0b5a098/5c7aa24ef57242de93e12716541dfc15 [2019-10-13 23:10:26,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:10:26,307 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:10:26,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:10:26,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:10:26,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:10:26,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:10:26" (1/1) ... [2019-10-13 23:10:26,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2184d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:26, skipping insertion in model container [2019-10-13 23:10:26,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:10:26" (1/1) ... [2019-10-13 23:10:26,321 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:10:26,401 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:10:27,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:10:27,199 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:10:27,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:10:27,500 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:10:27,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:27 WrapperNode [2019-10-13 23:10:27,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:10:27,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:10:27,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:10:27,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:10:27,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:27" (1/1) ... [2019-10-13 23:10:27,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:27" (1/1) ... [2019-10-13 23:10:27,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:27" (1/1) ... [2019-10-13 23:10:27,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:27" (1/1) ... [2019-10-13 23:10:27,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:27" (1/1) ... [2019-10-13 23:10:27,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:27" (1/1) ... [2019-10-13 23:10:27,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:27" (1/1) ... [2019-10-13 23:10:27,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:10:27,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:10:27,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:10:27,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:10:27,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:10:27,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:10:27,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:10:27,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:10:27,832 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:10:27,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:10:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:10:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:10:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:10:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:10:27,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:10:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:10:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:10:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:10:27,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:10:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:10:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:10:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:10:27,835 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:10:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:10:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:10:27,836 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:10:27,837 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:10:27,837 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:10:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:10:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:10:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:10:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:10:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:10:27,838 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:10:27,839 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:10:27,839 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:10:27,839 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:10:27,839 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:10:27,839 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:10:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:10:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:10:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:10:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:10:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:10:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:10:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:10:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:10:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:10:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:10:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:10:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:10:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:10:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:10:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:10:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:10:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:10:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:10:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:10:27,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:10:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:10:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:10:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:10:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:10:27,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:10:27,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:10:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:10:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:10:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:10:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:10:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:10:27,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:10:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:10:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:10:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:10:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:10:27,846 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:10:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:10:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:10:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:10:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:10:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:10:27,849 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:10:27,849 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:10:27,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-13 23:10:27,849 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:10:27,850 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:10:27,851 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:10:27,851 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:10:27,851 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:10:27,851 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:10:27,851 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:10:27,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:10:27,852 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:10:27,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:10:27,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:10:27,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:10:27,853 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:10:27,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:10:27,853 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:10:27,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:10:27,854 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:10:27,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:10:27,854 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:10:27,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:10:27,854 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:10:27,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:10:27,854 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:10:27,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:10:27,855 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:10:27,855 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:10:27,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:10:27,855 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:10:27,855 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:10:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:10:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:10:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:10:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:10:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:10:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:10:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:10:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:10:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:10:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:10:27,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:10:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:10:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:10:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:10:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:10:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:10:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:10:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:10:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:10:27,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:10:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:10:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:10:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:10:27,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:10:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:10:27,862 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:10:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:10:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:10:27,869 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:10:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:10:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:10:27,870 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:10:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:10:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:10:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:10:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:10:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:10:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:10:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:10:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:10:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:10:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:10:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:10:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:10:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:10:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:10:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:10:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:10:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:10:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:10:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:10:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:10:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:10:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:10:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:10:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:10:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:10:27,882 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:10:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:10:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:10:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:10:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:10:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:10:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:10:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:10:27,883 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:10:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:10:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:10:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:10:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-13 23:10:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:10:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:10:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:10:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:10:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:10:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:10:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:10:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:10:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:10:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:10:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:10:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:10:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:10:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:10:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:10:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:10:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:10:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:10:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:10:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:10:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:10:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:10:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:10:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:10:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:10:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:10:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:10:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:10:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:10:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:10:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:10:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:10:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:10:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:10:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:10:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:10:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:10:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:10:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:10:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:10:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:10:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:10:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:10:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:10:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:10:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:10:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:10:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:10:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:10:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:10:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:10:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:10:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:10:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:10:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:10:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:10:27,894 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:10:27,894 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:10:27,894 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:10:27,894 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:10:27,894 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:10:27,894 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:10:27,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:10:27,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:10:27,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:10:32,388 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:10:32,389 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:10:32,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:10:32 BoogieIcfgContainer [2019-10-13 23:10:32,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:10:32,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:10:32,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:10:32,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:10:32,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:10:26" (1/3) ... [2019-10-13 23:10:32,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fbcb2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:10:32, skipping insertion in model container [2019-10-13 23:10:32,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:27" (2/3) ... [2019-10-13 23:10:32,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fbcb2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:10:32, skipping insertion in model container [2019-10-13 23:10:32,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:10:32" (3/3) ... [2019-10-13 23:10:32,400 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product25.cil.c [2019-10-13 23:10:32,411 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:10:32,421 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:10:32,434 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:10:32,481 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:10:32,482 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:10:32,488 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:10:32,489 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:10:32,489 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:10:32,489 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:10:32,489 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:10:32,489 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:10:32,521 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states. [2019-10-13 23:10:32,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-13 23:10:32,552 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:32,553 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:32,557 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:32,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:32,615 INFO L82 PathProgramCache]: Analyzing trace with hash -460999766, now seen corresponding path program 1 times [2019-10-13 23:10:32,625 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:32,626 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105942320] [2019-10-13 23:10:32,627 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:32,627 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:32,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:33,249 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:10:33,250 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105942320] [2019-10-13 23:10:33,251 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:33,251 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:10:33,251 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269599631] [2019-10-13 23:10:33,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:10:33,257 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:33,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:10:33,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:10:33,273 INFO L87 Difference]: Start difference. First operand 404 states. Second operand 2 states. [2019-10-13 23:10:33,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:33,335 INFO L93 Difference]: Finished difference Result 590 states and 695 transitions. [2019-10-13 23:10:33,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:10:33,337 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 125 [2019-10-13 23:10:33,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:33,357 INFO L225 Difference]: With dead ends: 590 [2019-10-13 23:10:33,357 INFO L226 Difference]: Without dead ends: 377 [2019-10-13 23:10:33,363 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:10:33,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2019-10-13 23:10:33,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2019-10-13 23:10:33,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2019-10-13 23:10:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 442 transitions. [2019-10-13 23:10:33,496 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 442 transitions. Word has length 125 [2019-10-13 23:10:33,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:33,499 INFO L462 AbstractCegarLoop]: Abstraction has 377 states and 442 transitions. [2019-10-13 23:10:33,500 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:10:33,500 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 442 transitions. [2019-10-13 23:10:33,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-13 23:10:33,506 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:33,507 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:33,507 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:33,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:33,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1837542480, now seen corresponding path program 1 times [2019-10-13 23:10:33,508 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:33,508 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101759072] [2019-10-13 23:10:33,509 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:33,509 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:33,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:33,773 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:10:33,774 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101759072] [2019-10-13 23:10:33,774 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:33,775 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:10:33,775 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271575712] [2019-10-13 23:10:33,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:10:33,778 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:33,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:10:33,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:10:33,779 INFO L87 Difference]: Start difference. First operand 377 states and 442 transitions. Second operand 3 states. [2019-10-13 23:10:33,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:33,867 INFO L93 Difference]: Finished difference Result 575 states and 664 transitions. [2019-10-13 23:10:33,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:10:33,868 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-13 23:10:33,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:33,875 INFO L225 Difference]: With dead ends: 575 [2019-10-13 23:10:33,875 INFO L226 Difference]: Without dead ends: 379 [2019-10-13 23:10:33,882 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:10:33,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-10-13 23:10:33,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2019-10-13 23:10:33,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-10-13 23:10:33,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 444 transitions. [2019-10-13 23:10:33,928 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 444 transitions. Word has length 126 [2019-10-13 23:10:33,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:33,929 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 444 transitions. [2019-10-13 23:10:33,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:10:33,929 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 444 transitions. [2019-10-13 23:10:33,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-13 23:10:33,932 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:33,932 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:33,932 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:33,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:33,933 INFO L82 PathProgramCache]: Analyzing trace with hash -330836873, now seen corresponding path program 1 times [2019-10-13 23:10:33,933 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:33,937 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026187967] [2019-10-13 23:10:33,937 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:33,938 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:33,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:34,278 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:10:34,278 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026187967] [2019-10-13 23:10:34,278 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:34,278 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:10:34,279 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153459687] [2019-10-13 23:10:34,279 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:10:34,280 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:34,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:10:34,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:10:34,280 INFO L87 Difference]: Start difference. First operand 379 states and 444 transitions. Second operand 3 states. [2019-10-13 23:10:34,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:34,312 INFO L93 Difference]: Finished difference Result 742 states and 898 transitions. [2019-10-13 23:10:34,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:10:34,313 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-10-13 23:10:34,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:34,317 INFO L225 Difference]: With dead ends: 742 [2019-10-13 23:10:34,317 INFO L226 Difference]: Without dead ends: 421 [2019-10-13 23:10:34,318 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:10:34,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2019-10-13 23:10:34,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 420. [2019-10-13 23:10:34,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2019-10-13 23:10:34,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 515 transitions. [2019-10-13 23:10:34,339 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 515 transitions. Word has length 131 [2019-10-13 23:10:34,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:34,339 INFO L462 AbstractCegarLoop]: Abstraction has 420 states and 515 transitions. [2019-10-13 23:10:34,340 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:10:34,340 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 515 transitions. [2019-10-13 23:10:34,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-13 23:10:34,342 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:34,343 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:34,343 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:34,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:34,343 INFO L82 PathProgramCache]: Analyzing trace with hash 844763331, now seen corresponding path program 1 times [2019-10-13 23:10:34,344 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:34,344 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894173906] [2019-10-13 23:10:34,344 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:34,344 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:34,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:34,853 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:10:34,853 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894173906] [2019-10-13 23:10:34,853 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:34,854 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-13 23:10:34,854 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163702990] [2019-10-13 23:10:34,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-13 23:10:34,855 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:34,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-13 23:10:34,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2019-10-13 23:10:34,856 INFO L87 Difference]: Start difference. First operand 420 states and 515 transitions. Second operand 21 states. [2019-10-13 23:10:44,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:44,646 INFO L93 Difference]: Finished difference Result 838 states and 1000 transitions. [2019-10-13 23:10:44,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-13 23:10:44,647 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 132 [2019-10-13 23:10:44,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:44,653 INFO L225 Difference]: With dead ends: 838 [2019-10-13 23:10:44,654 INFO L226 Difference]: Without dead ends: 648 [2019-10-13 23:10:44,655 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2019-10-13 23:10:44,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2019-10-13 23:10:44,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 639. [2019-10-13 23:10:44,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2019-10-13 23:10:44,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 772 transitions. [2019-10-13 23:10:44,696 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 772 transitions. Word has length 132 [2019-10-13 23:10:44,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:44,697 INFO L462 AbstractCegarLoop]: Abstraction has 639 states and 772 transitions. [2019-10-13 23:10:44,697 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-13 23:10:44,697 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 772 transitions. [2019-10-13 23:10:44,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-13 23:10:44,700 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:44,700 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:44,701 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:44,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:44,701 INFO L82 PathProgramCache]: Analyzing trace with hash -995692034, now seen corresponding path program 1 times [2019-10-13 23:10:44,701 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:44,702 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659092551] [2019-10-13 23:10:44,702 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:44,702 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:44,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:45,192 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:10:45,192 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659092551] [2019-10-13 23:10:45,193 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:45,193 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-13 23:10:45,193 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389170994] [2019-10-13 23:10:45,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-13 23:10:45,194 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:45,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-13 23:10:45,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2019-10-13 23:10:45,195 INFO L87 Difference]: Start difference. First operand 639 states and 772 transitions. Second operand 23 states. [2019-10-13 23:10:47,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:47,811 INFO L93 Difference]: Finished difference Result 717 states and 858 transitions. [2019-10-13 23:10:47,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-13 23:10:47,814 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 138 [2019-10-13 23:10:47,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:47,826 INFO L225 Difference]: With dead ends: 717 [2019-10-13 23:10:47,826 INFO L226 Difference]: Without dead ends: 710 [2019-10-13 23:10:47,831 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 23:10:47,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2019-10-13 23:10:47,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 703. [2019-10-13 23:10:47,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 703 states. [2019-10-13 23:10:47,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 843 transitions. [2019-10-13 23:10:47,890 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 843 transitions. Word has length 138 [2019-10-13 23:10:47,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:47,892 INFO L462 AbstractCegarLoop]: Abstraction has 703 states and 843 transitions. [2019-10-13 23:10:47,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-13 23:10:47,892 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 843 transitions. [2019-10-13 23:10:47,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-13 23:10:47,898 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:47,898 INFO L380 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, 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] [2019-10-13 23:10:47,899 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:47,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:47,899 INFO L82 PathProgramCache]: Analyzing trace with hash 860631089, now seen corresponding path program 1 times [2019-10-13 23:10:47,899 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:47,899 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358557510] [2019-10-13 23:10:47,900 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:47,900 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:47,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:48,135 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 23:10:48,136 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358557510] [2019-10-13 23:10:48,137 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:48,138 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 23:10:48,138 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128312107] [2019-10-13 23:10:48,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 23:10:48,140 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:48,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 23:10:48,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:10:48,140 INFO L87 Difference]: Start difference. First operand 703 states and 843 transitions. Second operand 8 states. [2019-10-13 23:10:48,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:48,209 INFO L93 Difference]: Finished difference Result 1136 states and 1345 transitions. [2019-10-13 23:10:48,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:10:48,210 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 227 [2019-10-13 23:10:48,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:48,217 INFO L225 Difference]: With dead ends: 1136 [2019-10-13 23:10:48,217 INFO L226 Difference]: Without dead ends: 703 [2019-10-13 23:10:48,220 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:10:48,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2019-10-13 23:10:48,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 703. [2019-10-13 23:10:48,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 703 states. [2019-10-13 23:10:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 841 transitions. [2019-10-13 23:10:48,282 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 841 transitions. Word has length 227 [2019-10-13 23:10:48,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:48,287 INFO L462 AbstractCegarLoop]: Abstraction has 703 states and 841 transitions. [2019-10-13 23:10:48,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 23:10:48,287 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 841 transitions. [2019-10-13 23:10:48,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-10-13 23:10:48,293 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:48,293 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 23:10:48,294 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:48,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:48,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1698649821, now seen corresponding path program 1 times [2019-10-13 23:10:48,294 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:48,295 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085044666] [2019-10-13 23:10:48,295 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:48,295 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:48,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:48,795 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-13 23:10:48,795 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085044666] [2019-10-13 23:10:48,796 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:48,796 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 23:10:48,796 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022240427] [2019-10-13 23:10:48,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:10:48,798 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:48,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:10:48,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:10:48,798 INFO L87 Difference]: Start difference. First operand 703 states and 841 transitions. Second operand 11 states. [2019-10-13 23:10:52,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:52,560 INFO L93 Difference]: Finished difference Result 1371 states and 1586 transitions. [2019-10-13 23:10:52,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 23:10:52,561 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 232 [2019-10-13 23:10:52,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:52,573 INFO L225 Difference]: With dead ends: 1371 [2019-10-13 23:10:52,573 INFO L226 Difference]: Without dead ends: 1010 [2019-10-13 23:10:52,576 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:10:52,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2019-10-13 23:10:52,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 988. [2019-10-13 23:10:52,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2019-10-13 23:10:52,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1155 transitions. [2019-10-13 23:10:52,738 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1155 transitions. Word has length 232 [2019-10-13 23:10:52,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:52,739 INFO L462 AbstractCegarLoop]: Abstraction has 988 states and 1155 transitions. [2019-10-13 23:10:52,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:10:52,739 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1155 transitions. [2019-10-13 23:10:52,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2019-10-13 23:10:52,748 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:52,749 INFO L380 BasicCegarLoop]: trace histogram [6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:52,749 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:52,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:52,750 INFO L82 PathProgramCache]: Analyzing trace with hash 900258588, now seen corresponding path program 1 times [2019-10-13 23:10:52,750 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:52,750 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675890437] [2019-10-13 23:10:52,750 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:52,750 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:52,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:53,166 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2019-10-13 23:10:53,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675890437] [2019-10-13 23:10:53,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399916541] [2019-10-13 23:10:53,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:10:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:54,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 3748 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:10:54,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:10:54,355 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2019-10-13 23:10:54,356 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:10:55,446 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2019-10-13 23:10:55,447 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1645969985] [2019-10-13 23:10:55,479 INFO L162 IcfgInterpreter]: Started Sifa with 237 locations of interest [2019-10-13 23:10:55,479 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:10:55,487 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:10:55,498 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:10:55,499 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs