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_spec0_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:10:36,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:10:36,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:10:36,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:10:36,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:10:36,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:10:36,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:10:36,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:10:36,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:10:36,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:10:36,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:10:36,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:10:36,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:10:36,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:10:36,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:10:36,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:10:36,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:10:36,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:10:36,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:10:36,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:10:36,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:10:36,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:10:36,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:10:36,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:10:36,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:10:36,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:10:36,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:10:36,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:10:36,847 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:10:36,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:10:36,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:10:36,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:10:36,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:10:36,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:10:36,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:10:36,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:10:36,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:10:36,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:10:36,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:10:36,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:10:36,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:10:36,857 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 [2019-10-15 03:10:36,876 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:10:36,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:10:36,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:10:36,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:10:36,878 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:10:36,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:10:36,879 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:10:36,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:10:36,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:10:36,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:10:36,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:10:36,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:10:36,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:10:36,881 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:10:36,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:10:36,882 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:10:36,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:10:36,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:10:36,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:10:36,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:10:36,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:10:36,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:10:36,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:10:36,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:10:36,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:10:36,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:10:36,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:10:36,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:10:36,887 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 [2019-10-15 03:10:37,206 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:10:37,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:10:37,224 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:10:37,226 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:10:37,226 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:10:37,227 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product22.cil.c [2019-10-15 03:10:37,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed19ab641/e74ba72e50a94c8e83c668abcd19e479/FLAG2356d9916 [2019-10-15 03:10:38,013 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:10:38,014 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product22.cil.c [2019-10-15 03:10:38,040 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed19ab641/e74ba72e50a94c8e83c668abcd19e479/FLAG2356d9916 [2019-10-15 03:10:38,246 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed19ab641/e74ba72e50a94c8e83c668abcd19e479 [2019-10-15 03:10:38,256 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:10:38,258 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:10:38,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:10:38,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:10:38,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:10:38,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:10:38" (1/1) ... [2019-10-15 03:10:38,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b73aab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:38, skipping insertion in model container [2019-10-15 03:10:38,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:10:38" (1/1) ... [2019-10-15 03:10:38,273 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:10:38,346 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:10:39,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:10:39,209 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:10:39,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:10:39,410 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:10:39,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:39 WrapperNode [2019-10-15 03:10:39,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:10:39,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:10:39,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:10:39,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:10:39,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:39" (1/1) ... [2019-10-15 03:10:39,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:39" (1/1) ... [2019-10-15 03:10:39,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:39" (1/1) ... [2019-10-15 03:10:39,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:39" (1/1) ... [2019-10-15 03:10:39,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:39" (1/1) ... [2019-10-15 03:10:39,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:39" (1/1) ... [2019-10-15 03:10:39,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:39" (1/1) ... [2019-10-15 03:10:39,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:10:39,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:10:39,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:10:39,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:10:39,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:39" (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 [2019-10-15 03:10:39,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:10:39,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:10:39,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:10:39,717 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:10:39,718 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:10:39,718 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:10:39,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:10:39,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:10:39,719 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:10:39,719 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:10:39,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:10:39,719 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:10:39,720 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:10:39,720 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:10:39,720 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:10:39,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:10:39,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:10:39,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:10:39,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:10:39,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:10:39,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:10:39,722 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:10:39,723 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:10:39,723 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:10:39,723 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:10:39,723 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:10:39,723 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:10:39,723 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:10:39,724 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:10:39,724 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:10:39,724 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:10:39,724 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:10:39,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:10:39,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:10:39,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:10:39,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:10:39,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:10:39,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:10:39,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:10:39,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:10:39,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:10:39,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:10:39,726 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:10:39,726 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:10:39,727 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:10:39,727 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:10:39,727 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:10:39,727 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-15 03:10:39,727 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:10:39,728 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:10:39,728 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:10:39,728 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:10:39,730 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:10:39,731 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:10:39,731 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:10:39,731 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:10:39,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:10:39,731 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:10:39,732 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:10:39,732 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:10:39,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:10:39,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:10:39,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:10:39,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:10:39,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:10:39,734 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:10:39,734 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:10:39,734 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:10:39,734 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:10:39,734 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:10:39,735 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:10:39,735 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:10:39,735 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:10:39,736 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:10:39,736 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:10:39,737 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:10:39,737 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:10:39,737 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:10:39,738 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:10:39,738 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:10:39,739 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:10:39,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 03:10:39,740 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:10:39,740 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:10:39,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:10:39,740 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:10:39,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:10:39,741 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:10:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:10:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:10:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:10:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:10:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:10:39,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:10:39,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:10:39,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:10:39,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:10:39,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:10:39,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:10:39,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:10:39,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:10:39,744 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:10:39,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:10:39,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:10:39,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:10:39,745 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:10:39,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:10:39,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:10:39,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:10:39,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:10:39,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:10:39,745 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:10:39,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:10:39,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:10:39,746 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:10:39,747 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:10:39,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:10:39,747 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:10:39,747 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:10:39,747 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:10:39,748 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:10:39,751 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:10:39,752 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:10:39,752 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:10:39,753 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:10:39,753 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:10:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:10:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:10:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:10:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:10:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:10:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:10:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:10:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:10:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:10:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:10:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:10:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:10:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:10:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:10:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:10:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:10:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:10:39,761 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:10:39,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:10:39,767 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:10:39,767 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:10:39,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:10:39,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:10:39,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:10:39,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:10:39,768 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:10:39,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:10:39,768 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:10:39,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:10:39,768 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:10:39,769 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:10:39,769 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:10:39,769 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:10:39,769 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:10:39,770 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:10:39,770 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:10:39,770 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:10:39,770 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:10:39,770 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:10:39,770 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:10:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:10:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:10:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:10:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:10:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:10:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:10:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:10:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:10:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:10:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:10:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:10:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:10:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:10:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:10:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:10:39,772 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:10:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:10:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:10:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:10:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:10:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:10:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:10:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:10:39,773 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-15 03:10:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:10:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 03:10:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:10:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:10:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:10:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:10:39,774 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:10:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:10:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:10:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:10:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:10:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:10:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:10:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:10:39,775 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:10:39,776 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:10:39,776 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:10:39,776 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:10:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:10:39,777 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:10:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:10:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:10:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:10:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:10:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:10:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:10:39,778 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:10:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:10:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:10:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:10:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:10:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:10:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:10:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:10:39,779 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:10:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:10:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:10:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:10:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:10:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:10:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:10:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:10:39,780 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:10:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:10:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:10:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:10:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:10:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:10:39,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:10:44,457 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:10:44,457 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:10:44,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:10:44 BoogieIcfgContainer [2019-10-15 03:10:44,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:10:44,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:10:44,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:10:44,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:10:44,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:10:38" (1/3) ... [2019-10-15 03:10:44,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70185416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:10:44, skipping insertion in model container [2019-10-15 03:10:44,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:39" (2/3) ... [2019-10-15 03:10:44,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70185416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:10:44, skipping insertion in model container [2019-10-15 03:10:44,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:10:44" (3/3) ... [2019-10-15 03:10:44,467 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product22.cil.c [2019-10-15 03:10:44,478 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:10:44,488 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:10:44,500 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:10:44,531 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:10:44,531 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:10:44,531 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:10:44,531 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:10:44,531 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:10:44,532 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:10:44,532 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:10:44,532 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:10:44,562 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states. [2019-10-15 03:10:44,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-15 03:10:44,583 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:44,585 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:44,587 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:44,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:44,593 INFO L82 PathProgramCache]: Analyzing trace with hash 63949910, now seen corresponding path program 1 times [2019-10-15 03:10:44,604 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:44,604 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727951878] [2019-10-15 03:10:44,605 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:44,605 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:44,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:45,262 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:10:45,263 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727951878] [2019-10-15 03:10:45,264 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:45,264 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:10:45,265 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829167454] [2019-10-15 03:10:45,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:10:45,274 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:45,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:10:45,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:10:45,292 INFO L87 Difference]: Start difference. First operand 369 states. Second operand 2 states. [2019-10-15 03:10:45,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:45,370 INFO L93 Difference]: Finished difference Result 539 states and 637 transitions. [2019-10-15 03:10:45,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:10:45,372 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 158 [2019-10-15 03:10:45,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:45,392 INFO L225 Difference]: With dead ends: 539 [2019-10-15 03:10:45,393 INFO L226 Difference]: Without dead ends: 348 [2019-10-15 03:10:45,399 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 [2019-10-15 03:10:45,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-10-15 03:10:45,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-10-15 03:10:45,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-10-15 03:10:45,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 409 transitions. [2019-10-15 03:10:45,493 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 409 transitions. Word has length 158 [2019-10-15 03:10:45,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:45,495 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 409 transitions. [2019-10-15 03:10:45,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:10:45,495 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 409 transitions. [2019-10-15 03:10:45,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-15 03:10:45,502 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:45,502 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:45,502 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:45,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:45,503 INFO L82 PathProgramCache]: Analyzing trace with hash -57393484, now seen corresponding path program 1 times [2019-10-15 03:10:45,503 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:45,503 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67772960] [2019-10-15 03:10:45,503 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:45,504 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:45,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:45,802 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:10:45,803 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67772960] [2019-10-15 03:10:45,803 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:45,804 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:10:45,804 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829076248] [2019-10-15 03:10:45,810 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:10:45,811 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:45,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:10:45,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:45,812 INFO L87 Difference]: Start difference. First operand 348 states and 409 transitions. Second operand 3 states. [2019-10-15 03:10:45,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:45,896 INFO L93 Difference]: Finished difference Result 524 states and 606 transitions. [2019-10-15 03:10:45,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:10:45,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-10-15 03:10:45,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:45,903 INFO L225 Difference]: With dead ends: 524 [2019-10-15 03:10:45,903 INFO L226 Difference]: Without dead ends: 350 [2019-10-15 03:10:45,906 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 [2019-10-15 03:10:45,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-10-15 03:10:45,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-10-15 03:10:45,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-10-15 03:10:45,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 411 transitions. [2019-10-15 03:10:45,956 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 411 transitions. Word has length 159 [2019-10-15 03:10:45,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:45,957 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 411 transitions. [2019-10-15 03:10:45,957 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:10:45,957 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 411 transitions. [2019-10-15 03:10:45,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-15 03:10:45,964 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:45,965 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:10:45,965 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:45,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:45,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1686759673, now seen corresponding path program 1 times [2019-10-15 03:10:45,966 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:45,966 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392751445] [2019-10-15 03:10:45,966 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:45,966 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:45,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:46,216 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:10:46,216 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392751445] [2019-10-15 03:10:46,217 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:46,217 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:10:46,217 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429007971] [2019-10-15 03:10:46,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:10:46,220 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:46,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:10:46,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:46,221 INFO L87 Difference]: Start difference. First operand 350 states and 411 transitions. Second operand 3 states. [2019-10-15 03:10:46,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:46,288 INFO L93 Difference]: Finished difference Result 684 states and 832 transitions. [2019-10-15 03:10:46,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:10:46,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-10-15 03:10:46,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:46,297 INFO L225 Difference]: With dead ends: 684 [2019-10-15 03:10:46,297 INFO L226 Difference]: Without dead ends: 392 [2019-10-15 03:10:46,302 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 [2019-10-15 03:10:46,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-10-15 03:10:46,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 391. [2019-10-15 03:10:46,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2019-10-15 03:10:46,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 482 transitions. [2019-10-15 03:10:46,340 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 482 transitions. Word has length 171 [2019-10-15 03:10:46,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:46,340 INFO L462 AbstractCegarLoop]: Abstraction has 391 states and 482 transitions. [2019-10-15 03:10:46,340 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:10:46,341 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 482 transitions. [2019-10-15 03:10:46,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-15 03:10:46,350 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:46,350 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:10:46,350 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:46,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:46,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1152021825, now seen corresponding path program 1 times [2019-10-15 03:10:46,351 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:46,351 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632317246] [2019-10-15 03:10:46,352 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:46,354 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:46,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:47,533 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:10:47,534 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632317246] [2019-10-15 03:10:47,534 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:47,534 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-15 03:10:47,535 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66919897] [2019-10-15 03:10:47,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 03:10:47,536 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:47,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 03:10:47,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2019-10-15 03:10:47,539 INFO L87 Difference]: Start difference. First operand 391 states and 482 transitions. Second operand 26 states. [2019-10-15 03:10:54,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:54,435 INFO L93 Difference]: Finished difference Result 780 states and 945 transitions. [2019-10-15 03:10:54,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-15 03:10:54,437 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 172 [2019-10-15 03:10:54,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:54,444 INFO L225 Difference]: With dead ends: 780 [2019-10-15 03:10:54,444 INFO L226 Difference]: Without dead ends: 601 [2019-10-15 03:10:54,449 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=1647, Unknown=0, NotChecked=0, Total=1806 [2019-10-15 03:10:54,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-10-15 03:10:54,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 589. [2019-10-15 03:10:54,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2019-10-15 03:10:54,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 718 transitions. [2019-10-15 03:10:54,483 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 718 transitions. Word has length 172 [2019-10-15 03:10:54,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:54,484 INFO L462 AbstractCegarLoop]: Abstraction has 589 states and 718 transitions. [2019-10-15 03:10:54,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-15 03:10:54,484 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 718 transitions. [2019-10-15 03:10:54,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-15 03:10:54,488 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:54,488 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:10:54,489 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:54,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:54,489 INFO L82 PathProgramCache]: Analyzing trace with hash 278770332, now seen corresponding path program 1 times [2019-10-15 03:10:54,489 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:54,490 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690359205] [2019-10-15 03:10:54,490 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:54,490 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:54,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:54,696 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:10:54,697 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690359205] [2019-10-15 03:10:54,697 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:54,697 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 03:10:54,698 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515839280] [2019-10-15 03:10:54,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 03:10:54,699 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:54,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 03:10:54,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:10:54,700 INFO L87 Difference]: Start difference. First operand 589 states and 718 transitions. Second operand 10 states. [2019-10-15 03:10:54,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:54,843 INFO L93 Difference]: Finished difference Result 598 states and 728 transitions. [2019-10-15 03:10:54,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:10:54,844 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 176 [2019-10-15 03:10:54,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:54,848 INFO L225 Difference]: With dead ends: 598 [2019-10-15 03:10:54,848 INFO L226 Difference]: Without dead ends: 593 [2019-10-15 03:10:54,849 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:10:54,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-10-15 03:10:54,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2019-10-15 03:10:54,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2019-10-15 03:10:54,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 721 transitions. [2019-10-15 03:10:54,881 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 721 transitions. Word has length 176 [2019-10-15 03:10:54,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:54,882 INFO L462 AbstractCegarLoop]: Abstraction has 593 states and 721 transitions. [2019-10-15 03:10:54,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 03:10:54,882 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 721 transitions. [2019-10-15 03:10:54,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-15 03:10:54,885 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:54,886 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:10:54,886 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:54,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:54,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1231462198, now seen corresponding path program 1 times [2019-10-15 03:10:54,887 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:54,887 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867842252] [2019-10-15 03:10:54,887 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:54,887 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:54,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:56,195 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:10:56,195 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867842252] [2019-10-15 03:10:56,195 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355486757] [2019-10-15 03:10:56,196 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 [2019-10-15 03:10:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:56,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 2613 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:10:56,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:10:56,946 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:10:56,946 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:10:57,282 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:10:57,282 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [765702679] [2019-10-15 03:10:57,317 INFO L162 IcfgInterpreter]: Started Sifa with 163 locations of interest [2019-10-15 03:10:57,318 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:10:57,325 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:10:57,336 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:10:57,337 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs