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 0.1.24-36ac518-m [2019-10-07 14:38:08,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:38:08,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:38:08,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:38:08,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:38:08,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:38:08,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:38:08,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:38:08,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:38:08,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:38:08,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:38:08,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:38:08,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:38:08,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:38:08,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:38:08,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:38:08,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:38:08,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:38:08,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:38:08,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:38:08,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:38:08,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:38:08,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:38:08,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:38:08,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:38:08,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:38:08,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:38:08,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:38:08,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:38:08,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:38:08,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:38:08,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:38:08,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:38:08,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:38:08,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:38:08,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:38:08,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:38:08,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:38:08,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:38:08,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:38:08,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:38:08,255 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 [2019-10-07 14:38:08,270 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:38:08,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:38:08,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:38:08,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:38:08,272 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:38:08,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:38:08,272 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:38:08,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:38:08,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:38:08,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:38:08,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:38:08,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:38:08,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:38:08,274 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:38:08,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:38:08,274 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:38:08,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:38:08,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:38:08,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:38:08,275 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:38:08,275 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:38:08,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:38:08,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:38:08,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:38:08,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:38:08,276 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:38:08,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:38:08,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:38:08,277 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 [2019-10-07 14:38:08,560 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:38:08,574 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:38:08,577 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:38:08,579 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:38:08,579 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:38:08,580 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product22.cil.c [2019-10-07 14:38:08,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b97064ea/64d4d023168a4b53bc6d2431f80fbfe7/FLAGbab892de9 [2019-10-07 14:38:09,343 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:38:09,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product22.cil.c [2019-10-07 14:38:09,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b97064ea/64d4d023168a4b53bc6d2431f80fbfe7/FLAGbab892de9 [2019-10-07 14:38:09,534 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b97064ea/64d4d023168a4b53bc6d2431f80fbfe7 [2019-10-07 14:38:09,545 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:38:09,546 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:38:09,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:38:09,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:38:09,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:38:09,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:38:09" (1/1) ... [2019-10-07 14:38:09,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174a7eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:38:09, skipping insertion in model container [2019-10-07 14:38:09,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:38:09" (1/1) ... [2019-10-07 14:38:09,564 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:38:09,659 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:38:10,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:38:10,479 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:38:10,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:38:10,713 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:38:10,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:38:10 WrapperNode [2019-10-07 14:38:10,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:38:10,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:38:10,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:38:10,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:38:10,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:38:10" (1/1) ... [2019-10-07 14:38:10,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:38:10" (1/1) ... [2019-10-07 14:38:10,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:38:10" (1/1) ... [2019-10-07 14:38:10,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:38:10" (1/1) ... [2019-10-07 14:38:10,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:38:10" (1/1) ... [2019-10-07 14:38:10,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:38:10" (1/1) ... [2019-10-07 14:38:10,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:38:10" (1/1) ... [2019-10-07 14:38:10,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:38:10,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:38:10,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:38:10,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:38:10,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:38:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:38:11,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:38:11,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:38:11,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:38:11,006 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:38:11,007 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:38:11,008 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:38:11,009 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:38:11,009 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:38:11,010 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:38:11,010 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:38:11,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:38:11,011 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:38:11,011 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:38:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:38:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:38:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:38:11,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:38:11,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:38:11,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:38:11,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:38:11,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:38:11,016 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:38:11,016 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:38:11,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:38:11,016 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:38:11,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:38:11,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:38:11,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:38:11,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:38:11,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:38:11,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:38:11,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:38:11,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:38:11,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:38:11,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:38:11,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:38:11,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:38:11,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:38:11,019 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:38:11,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:38:11,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:38:11,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:38:11,019 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:38:11,020 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:38:11,020 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:38:11,020 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:38:11,020 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 14:38:11,020 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-07 14:38:11,021 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:38:11,021 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:38:11,021 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:38:11,021 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:38:11,021 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:38:11,021 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:38:11,022 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:38:11,022 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:38:11,022 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:38:11,022 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:38:11,023 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:38:11,023 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:38:11,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:38:11,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:38:11,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:38:11,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:38:11,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:38:11,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:38:11,025 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:38:11,025 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:38:11,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:38:11,026 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:38:11,026 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:38:11,026 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:38:11,026 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:38:11,027 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:38:11,028 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:38:11,028 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:38:11,029 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:38:11,029 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:38:11,029 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:38:11,030 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:38:11,031 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:38:11,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-07 14:38:11,033 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:38:11,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:38:11,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:38:11,035 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:38:11,036 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:38:11,036 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:38:11,037 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:38:11,037 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:38:11,037 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:38:11,037 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:38:11,037 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:38:11,038 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:38:11,038 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:38:11,038 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:38:11,038 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:38:11,038 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:38:11,039 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:38:11,039 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:38:11,039 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:38:11,039 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:38:11,039 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:38:11,040 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:38:11,040 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:38:11,040 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:38:11,041 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:38:11,041 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:38:11,041 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:38:11,041 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:38:11,041 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:38:11,042 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:38:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:38:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:38:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:38:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:38:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:38:11,044 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:38:11,044 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:38:11,044 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:38:11,045 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:38:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:38:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:38:11,048 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:38:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:38:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:38:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:38:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:38:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:38:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:38:11,050 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:38:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:38:11,051 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:38:11,052 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:38:11,055 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:38:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:38:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:38:11,056 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:38:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:38:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:38:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:38:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:38:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:38:11,058 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:38:11,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:38:11,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:38:11,064 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:38:11,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:38:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:38:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:38:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:38:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:38:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:38:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:38:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:38:11,066 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:38:11,066 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:38:11,066 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:38:11,066 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:38:11,067 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:38:11,067 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:38:11,067 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:38:11,068 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:38:11,068 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:38:11,068 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:38:11,068 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:38:11,068 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:38:11,068 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:38:11,068 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:38:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:38:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:38:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:38:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:38:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:38:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:38:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:38:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:38:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:38:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:38:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:38:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:38:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:38:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:38:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:38:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:38:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:38:11,071 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:38:11,071 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:38:11,071 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 14:38:11,071 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-07 14:38:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:38:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-07 14:38:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:38:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:38:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:38:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:38:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:38:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:38:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:38:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:38:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:38:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:38:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:38:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:38:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:38:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:38:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:38:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:38:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:38:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:38:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:38:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:38:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:38:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:38:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:38:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:38:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:38:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:38:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:38:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:38:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:38:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:38:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:38:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:38:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:38:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:38:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:38:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:38:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:38:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:38:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:38:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:38:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:38:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:38:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:38:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:38:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:38:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:38:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:38:15,692 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:38:15,692 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:38:15,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:38:15 BoogieIcfgContainer [2019-10-07 14:38:15,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:38:15,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:38:15,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:38:15,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:38:15,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:38:09" (1/3) ... [2019-10-07 14:38:15,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64277929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:38:15, skipping insertion in model container [2019-10-07 14:38:15,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:38:10" (2/3) ... [2019-10-07 14:38:15,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64277929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:38:15, skipping insertion in model container [2019-10-07 14:38:15,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:38:15" (3/3) ... [2019-10-07 14:38:15,702 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product22.cil.c [2019-10-07 14:38:15,712 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:38:15,722 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:38:15,734 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:38:15,766 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:38:15,766 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:38:15,766 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:38:15,766 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:38:15,766 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:38:15,766 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:38:15,766 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:38:15,767 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:38:15,796 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states. [2019-10-07 14:38:15,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-07 14:38:15,815 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:38:15,817 INFO L385 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] [2019-10-07 14:38:15,820 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:38:15,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:38:15,827 INFO L82 PathProgramCache]: Analyzing trace with hash 63949910, now seen corresponding path program 1 times [2019-10-07 14:38:15,839 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:38:15,839 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:15,840 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:15,840 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:15,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:38:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:16,585 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:38:16,586 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:16,587 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:38:16,587 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:38:16,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:38:16,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:38:16,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:38:16,609 INFO L87 Difference]: Start difference. First operand 369 states. Second operand 2 states. [2019-10-07 14:38:16,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:38:16,677 INFO L93 Difference]: Finished difference Result 539 states and 637 transitions. [2019-10-07 14:38:16,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:38:16,678 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 158 [2019-10-07 14:38:16,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:38:16,699 INFO L225 Difference]: With dead ends: 539 [2019-10-07 14:38:16,700 INFO L226 Difference]: Without dead ends: 348 [2019-10-07 14:38:16,710 INFO L606 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 [2019-10-07 14:38:16,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-10-07 14:38:16,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-10-07 14:38:16,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-10-07 14:38:16,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 409 transitions. [2019-10-07 14:38:16,841 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 409 transitions. Word has length 158 [2019-10-07 14:38:16,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:38:16,844 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 409 transitions. [2019-10-07 14:38:16,844 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:38:16,844 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 409 transitions. [2019-10-07 14:38:16,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-07 14:38:16,859 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:38:16,859 INFO L385 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] [2019-10-07 14:38:16,859 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:38:16,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:38:16,861 INFO L82 PathProgramCache]: Analyzing trace with hash -57393484, now seen corresponding path program 1 times [2019-10-07 14:38:16,861 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:38:16,861 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:16,861 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:16,861 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:16,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:38:16,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:17,204 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:38:17,205 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:17,206 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:38:17,206 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:38:17,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:38:17,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:38:17,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:38:17,216 INFO L87 Difference]: Start difference. First operand 348 states and 409 transitions. Second operand 3 states. [2019-10-07 14:38:17,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:38:17,289 INFO L93 Difference]: Finished difference Result 524 states and 606 transitions. [2019-10-07 14:38:17,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:38:17,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-10-07 14:38:17,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:38:17,300 INFO L225 Difference]: With dead ends: 524 [2019-10-07 14:38:17,300 INFO L226 Difference]: Without dead ends: 350 [2019-10-07 14:38:17,306 INFO L606 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 [2019-10-07 14:38:17,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-10-07 14:38:17,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-10-07 14:38:17,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-10-07 14:38:17,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 411 transitions. [2019-10-07 14:38:17,342 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 411 transitions. Word has length 159 [2019-10-07 14:38:17,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:38:17,343 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 411 transitions. [2019-10-07 14:38:17,343 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:38:17,343 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 411 transitions. [2019-10-07 14:38:17,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-07 14:38:17,346 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:38:17,346 INFO L385 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] [2019-10-07 14:38:17,347 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:38:17,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:38:17,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1686759673, now seen corresponding path program 1 times [2019-10-07 14:38:17,347 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:38:17,348 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:17,348 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:17,348 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:17,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:38:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:17,523 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:38:17,523 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:17,523 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:38:17,524 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:38:17,524 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:38:17,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:38:17,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:38:17,525 INFO L87 Difference]: Start difference. First operand 350 states and 411 transitions. Second operand 3 states. [2019-10-07 14:38:17,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:38:17,587 INFO L93 Difference]: Finished difference Result 684 states and 832 transitions. [2019-10-07 14:38:17,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:38:17,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-10-07 14:38:17,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:38:17,596 INFO L225 Difference]: With dead ends: 684 [2019-10-07 14:38:17,596 INFO L226 Difference]: Without dead ends: 392 [2019-10-07 14:38:17,598 INFO L606 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 [2019-10-07 14:38:17,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-10-07 14:38:17,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 391. [2019-10-07 14:38:17,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2019-10-07 14:38:17,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 482 transitions. [2019-10-07 14:38:17,621 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 482 transitions. Word has length 171 [2019-10-07 14:38:17,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:38:17,622 INFO L462 AbstractCegarLoop]: Abstraction has 391 states and 482 transitions. [2019-10-07 14:38:17,622 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:38:17,622 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 482 transitions. [2019-10-07 14:38:17,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-07 14:38:17,626 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:38:17,626 INFO L385 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] [2019-10-07 14:38:17,626 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:38:17,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:38:17,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1152021825, now seen corresponding path program 1 times [2019-10-07 14:38:17,627 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:38:17,627 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:17,628 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:17,628 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:17,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:38:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:18,607 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:38:18,608 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:18,608 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:38:18,608 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-07 14:38:18,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-07 14:38:18,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-07 14:38:18,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2019-10-07 14:38:18,612 INFO L87 Difference]: Start difference. First operand 391 states and 482 transitions. Second operand 26 states. [2019-10-07 14:38:25,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:38:25,631 INFO L93 Difference]: Finished difference Result 780 states and 945 transitions. [2019-10-07 14:38:25,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-07 14:38:25,632 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 172 [2019-10-07 14:38:25,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:38:25,638 INFO L225 Difference]: With dead ends: 780 [2019-10-07 14:38:25,638 INFO L226 Difference]: Without dead ends: 601 [2019-10-07 14:38:25,640 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=159, Invalid=1647, Unknown=0, NotChecked=0, Total=1806 [2019-10-07 14:38:25,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-10-07 14:38:25,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 589. [2019-10-07 14:38:25,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2019-10-07 14:38:25,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 718 transitions. [2019-10-07 14:38:25,672 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 718 transitions. Word has length 172 [2019-10-07 14:38:25,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:38:25,673 INFO L462 AbstractCegarLoop]: Abstraction has 589 states and 718 transitions. [2019-10-07 14:38:25,673 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-07 14:38:25,674 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 718 transitions. [2019-10-07 14:38:25,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-07 14:38:25,677 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:38:25,677 INFO L385 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] [2019-10-07 14:38:25,678 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:38:25,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:38:25,678 INFO L82 PathProgramCache]: Analyzing trace with hash 278770332, now seen corresponding path program 1 times [2019-10-07 14:38:25,678 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:38:25,678 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:25,679 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:25,679 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:25,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:38:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:26,007 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:38:26,007 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:26,007 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:38:26,008 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:38:26,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:38:26,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:38:26,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:38:26,009 INFO L87 Difference]: Start difference. First operand 589 states and 718 transitions. Second operand 10 states. [2019-10-07 14:38:26,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:38:26,088 INFO L93 Difference]: Finished difference Result 598 states and 728 transitions. [2019-10-07 14:38:26,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:38:26,089 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 176 [2019-10-07 14:38:26,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:38:26,097 INFO L225 Difference]: With dead ends: 598 [2019-10-07 14:38:26,097 INFO L226 Difference]: Without dead ends: 593 [2019-10-07 14:38:26,098 INFO L606 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 [2019-10-07 14:38:26,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-10-07 14:38:26,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2019-10-07 14:38:26,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2019-10-07 14:38:26,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 721 transitions. [2019-10-07 14:38:26,136 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 721 transitions. Word has length 176 [2019-10-07 14:38:26,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:38:26,140 INFO L462 AbstractCegarLoop]: Abstraction has 593 states and 721 transitions. [2019-10-07 14:38:26,141 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:38:26,141 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 721 transitions. [2019-10-07 14:38:26,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-07 14:38:26,144 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:38:26,145 INFO L385 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] [2019-10-07 14:38:26,145 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:38:26,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:38:26,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1231462198, now seen corresponding path program 1 times [2019-10-07 14:38:26,146 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:38:26,146 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:26,146 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:26,146 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:26,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:38:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:27,547 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:38:27,547 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:27,548 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:38:27,548 INFO L95 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 [2019-10-07 14:38:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:28,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 2613 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:38:28,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:38:28,285 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:38:28,285 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:38:28,639 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:38:28,640 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:38:28,682 INFO L162 IcfgInterpreter]: Started Sifa with 163 locations of interest [2019-10-07 14:38:28,683 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:38:28,695 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:38:28,715 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:38:28,716 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:39:01,545 WARN L191 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 652 [2019-10-07 14:39:05,242 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 289 DAG size of output: 235 [2019-10-07 14:39:05,572 WARN L191 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 690 [2019-10-07 14:39:05,921 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 690 [2019-10-07 14:39:06,157 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 690 [2019-10-07 14:39:06,322 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:39:06,945 WARN L191 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 980 [2019-10-07 14:39:07,606 WARN L191 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 980 [2019-10-07 14:39:08,242 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 980 [2019-10-07 14:39:08,400 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:39:09,031 WARN L191 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 980 [2019-10-07 14:39:10,127 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 982 DAG size of output: 980 [2019-10-07 14:39:10,703 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 980 [2019-10-07 14:39:10,910 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:39:11,486 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 980 [2019-10-07 14:39:12,063 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 980 [2019-10-07 14:39:12,623 WARN L191 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 980 [2019-10-07 14:39:12,772 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:39:13,378 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 980 [2019-10-07 14:39:13,406 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 541 for LOIs [2019-10-07 14:39:13,719 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:39:13,987 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:39:14,419 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 911 [2019-10-07 14:39:14,421 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1020 for LOIs [2019-10-07 14:39:14,968 WARN L191 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:15,540 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:15,790 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:39:16,593 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:17,178 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:17,754 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:17,974 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:39:18,843 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:19,482 WARN L191 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:20,055 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:20,267 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:39:21,083 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:22,332 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1146 DAG size of output: 1020 [2019-10-07 14:39:22,912 WARN L191 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:23,313 WARN L191 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 563 DAG size of output: 561 [2019-10-07 14:39:24,121 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:24,720 WARN L191 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:25,322 WARN L191 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:25,524 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:39:26,342 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:26,923 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:27,503 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:27,695 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:39:28,538 WARN L191 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:29,123 WARN L191 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:29,690 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:29,885 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:39:30,704 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:31,258 WARN L191 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:31,815 WARN L191 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:32,017 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:39:32,810 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:33,371 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:33,938 WARN L191 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:34,152 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:39:34,945 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:35,515 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:36,089 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:36,283 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:39:37,080 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:37,628 WARN L191 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:38,207 WARN L191 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:38,404 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:39:39,217 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:39,781 WARN L191 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:40,359 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:40,551 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:39:41,350 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:41,908 WARN L191 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:42,476 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:39:42,677 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:39:43,507 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:44,382 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:45,205 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:45,415 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:39:46,233 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:47,781 WARN L191 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 1146 DAG size of output: 1144 [2019-10-07 14:39:48,593 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:48,805 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:39:49,613 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:50,423 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:51,273 WARN L191 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:51,470 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:39:52,274 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:39:53,135 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:39:54,008 WARN L191 SmtUtils]: Spent 869.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:39:54,212 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:39:55,034 WARN L191 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:39:56,522 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1150 DAG size of output: 1148 [2019-10-07 14:39:57,349 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:39:57,559 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:39:58,399 WARN L191 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:39:59,227 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:40:00,059 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:40:00,259 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:40:01,083 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:40:01,923 WARN L191 SmtUtils]: Spent 830.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:40:02,767 WARN L191 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:40:02,967 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:40:03,786 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:40:04,597 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:40:05,417 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:40:05,610 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:40:06,444 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1150 [2019-10-07 14:40:08,508 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 1146 DAG size of output: 1144 [2019-10-07 14:40:09,308 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:40:09,504 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:40:10,313 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:40:11,776 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1146 DAG size of output: 1144 [2019-10-07 14:40:12,602 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:40:12,805 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:40:13,620 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:40:14,444 WARN L191 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:40:15,234 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:40:15,424 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:40:16,200 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:40:18,583 WARN L191 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 1146 DAG size of output: 1144 [2019-10-07 14:40:19,395 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:40:19,594 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:40:20,378 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:40:21,817 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1146 DAG size of output: 1144 [2019-10-07 14:40:22,621 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:40:22,826 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:40:23,643 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:40:24,451 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:40:25,264 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:40:25,460 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:40:26,278 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:40:28,617 WARN L191 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 1150 DAG size of output: 1148 [2019-10-07 14:40:29,449 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:40:29,652 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:40:30,449 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:40:31,300 WARN L191 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:40:32,113 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:40:32,320 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:40:33,110 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:40:33,917 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:40:34,746 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:40:34,940 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:40:35,747 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:40:37,100 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1155 DAG size of output: 1148 [2019-10-07 14:40:37,906 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:40:38,126 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:40:38,914 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:40:40,284 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1157 DAG size of output: 1150 [2019-10-07 14:40:41,081 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1150 [2019-10-07 14:40:41,282 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:40:42,084 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1150 [2019-10-07 14:40:42,334 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:40:42,335 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:40:42,343 INFO L168 Benchmark]: Toolchain (without parser) took 152796.56 ms. Allocated memory was 143.1 MB in the beginning and 780.1 MB in the end (delta: 637.0 MB). Free memory was 96.9 MB in the beginning and 325.1 MB in the end (delta: -228.2 MB). Peak memory consumption was 408.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:42,343 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 143.1 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:40:42,344 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1166.53 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 96.5 MB in the beginning and 136.6 MB in the end (delta: -40.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:42,345 INFO L168 Benchmark]: Boogie Preprocessor took 195.67 ms. Allocated memory is still 201.3 MB. Free memory was 136.6 MB in the beginning and 127.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:42,345 INFO L168 Benchmark]: RCFGBuilder took 4783.68 ms. Allocated memory was 201.3 MB in the beginning and 309.3 MB in the end (delta: 108.0 MB). Free memory was 127.9 MB in the beginning and 131.5 MB in the end (delta: -3.6 MB). Peak memory consumption was 105.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:42,346 INFO L168 Benchmark]: TraceAbstraction took 146646.00 ms. Allocated memory was 309.3 MB in the beginning and 780.1 MB in the end (delta: 470.8 MB). Free memory was 131.5 MB in the beginning and 325.1 MB in the end (delta: -193.6 MB). Peak memory consumption was 277.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:42,349 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 143.1 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1166.53 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 96.5 MB in the beginning and 136.6 MB in the end (delta: -40.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 195.67 ms. Allocated memory is still 201.3 MB. Free memory was 136.6 MB in the beginning and 127.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4783.68 ms. Allocated memory was 201.3 MB in the beginning and 309.3 MB in the end (delta: 108.0 MB). Free memory was 127.9 MB in the beginning and 131.5 MB in the end (delta: -3.6 MB). Peak memory consumption was 105.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 146646.00 ms. Allocated memory was 309.3 MB in the beginning and 780.1 MB in the end (delta: 470.8 MB). Free memory was 131.5 MB in the beginning and 325.1 MB in the end (delta: -193.6 MB). Peak memory consumption was 277.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...