java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:58:56,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:58:56,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:58:56,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:58:56,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:58:56,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:58:56,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:58:56,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:58:56,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:58:56,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:58:56,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:58:56,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:58:56,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:58:56,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:58:56,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:58:56,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:58:56,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:58:56,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:58:56,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:58:56,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:58:56,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:58:56,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:58:56,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:58:56,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:58:56,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:58:56,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:58:56,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:58:56,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:58:56,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:58:56,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:58:56,837 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:58:56,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:58:56,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:58:56,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:58:56,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:58:56,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:58:56,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:58:56,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:58:56,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:58:56,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:58:56,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:58:56,844 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 14:58:56,858 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:58:56,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:58:56,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:58:56,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:58:56,861 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:58:56,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:58:56,861 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:58:56,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:58:56,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:58:56,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:58:56,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:58:56,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:58:56,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:58:56,863 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:58:56,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:58:56,863 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:58:56,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:58:56,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:58:56,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:58:56,864 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:58:56,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:58:56,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:58:56,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:58:56,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:58:56,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:58:56,866 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:58:56,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:58:56,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:58:56,867 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 14:58:57,152 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:58:57,171 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:58:57,177 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:58:57,179 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:58:57,180 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:58:57,180 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product34.cil.c [2019-10-07 14:58:57,257 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0174a316c/e1bb05b40e6141d1a284f50094f4bb2a/FLAG79f16504f [2019-10-07 14:58:57,942 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:58:57,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product34.cil.c [2019-10-07 14:58:57,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0174a316c/e1bb05b40e6141d1a284f50094f4bb2a/FLAG79f16504f [2019-10-07 14:58:58,086 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0174a316c/e1bb05b40e6141d1a284f50094f4bb2a [2019-10-07 14:58:58,098 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:58:58,100 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:58:58,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:58:58,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:58:58,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:58:58,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:58:58" (1/1) ... [2019-10-07 14:58:58,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d9af163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:58, skipping insertion in model container [2019-10-07 14:58:58,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:58:58" (1/1) ... [2019-10-07 14:58:58,120 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:58:58,186 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:58:58,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:58:59,016 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:58:59,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:58:59,315 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:58:59,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:59 WrapperNode [2019-10-07 14:58:59,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:58:59,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:58:59,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:58:59,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:58:59,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:59" (1/1) ... [2019-10-07 14:58:59,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:59" (1/1) ... [2019-10-07 14:58:59,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:59" (1/1) ... [2019-10-07 14:58:59,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:59" (1/1) ... [2019-10-07 14:58:59,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:59" (1/1) ... [2019-10-07 14:58:59,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:59" (1/1) ... [2019-10-07 14:58:59,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:59" (1/1) ... [2019-10-07 14:58:59,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:58:59,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:58:59,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:58:59,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:58:59,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:59" (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 14:58:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:58:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:58:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:58:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:58:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:58:59,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:58:59,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:58:59,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:58:59,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:58:59,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:58:59,581 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:58:59,582 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:58:59,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:58:59,582 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:58:59,583 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:58:59,583 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:58:59,585 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:58:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:58:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:58:59,587 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:58:59,587 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:58:59,588 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:58:59,588 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:58:59,588 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 14:58:59,588 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:58:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:58:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:58:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:58:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:58:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:58:59,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:58:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:58:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:58:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:58:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:58:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:58:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:58:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:58:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:58:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:58:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:58:59,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:58:59,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:58:59,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:58:59,592 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:58:59,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:58:59,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:58:59,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:58:59,593 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:58:59,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:58:59,593 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:58:59,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:58:59,593 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:58:59,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:58:59,593 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:58:59,594 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:58:59,594 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-07 14:58:59,594 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 14:58:59,594 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:58:59,595 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:58:59,595 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:58:59,595 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:58:59,596 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 14:58:59,596 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:58:59,596 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:58:59,596 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:58:59,596 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:58:59,596 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:58:59,597 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:58:59,597 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:58:59,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:58:59,597 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:58:59,597 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 14:58:59,598 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:58:59,598 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:58:59,598 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:58:59,599 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:58:59,599 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:58:59,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:58:59,600 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:58:59,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:58:59,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:58:59,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:58:59,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:58:59,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:58:59,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:58:59,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:58:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:58:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:58:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:58:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:58:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:58:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:58:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:58:59,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:58:59,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:58:59,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:58:59,604 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:58:59,604 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:58:59,604 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:58:59,604 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:58:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:58:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:58:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:58:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:58:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 14:58:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 14:58:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:58:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:58:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:58:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:58:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:58:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:58:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:58:59,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:58:59,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:58:59,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:58:59,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:58:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:58:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:58:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:58:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:58:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:58:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:58:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:58:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:58:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:58:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:58:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:58:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:58:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:58:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:58:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:58:59,615 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:58:59,618 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:58:59,619 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:58:59,619 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:58:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:58:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:58:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:58:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:58:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:58:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:58:59,622 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:58:59,629 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:58:59,629 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:58:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:58:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:58:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:58:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:58:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:58:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:58:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:58:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:58:59,631 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:58:59,631 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:58:59,631 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:58:59,631 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:58:59,632 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:58:59,632 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:58:59,632 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 14:58:59,632 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:58:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:58:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:58:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:58:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:58:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:58:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:58:59,633 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:58:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:58:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:58:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:58:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:58:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:58:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:58:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:58:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:58:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:58:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:58:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:58:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:58:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:58:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:58:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:58:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:58:59,636 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:58:59,636 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:58:59,636 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:58:59,636 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:58:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:58:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:58:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:58:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:58:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:58:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:58:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:58:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:58:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:58:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:58:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:58:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:58:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:58:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:58:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:58:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:58:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:58:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 14:58:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:58:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:58:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:58:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:58:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:58:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-07 14:58:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 14:58:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:58:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:58:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 14:58:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:58:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:58:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:58:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:58:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:58:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:58:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:58:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:58:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:58:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:58:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:58:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:58:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 14:58:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 14:58:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:58:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:58:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:58:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:58:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:58:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:58:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:58:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:58:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:58:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:58:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:58:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:58:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:58:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:58:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:58:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:58:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:58:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:58:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:58:59,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:59:04,357 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:59:04,358 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:59:04,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:59:04 BoogieIcfgContainer [2019-10-07 14:59:04,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:59:04,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:59:04,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:59:04,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:59:04,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:58:58" (1/3) ... [2019-10-07 14:59:04,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667a1d30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:59:04, skipping insertion in model container [2019-10-07 14:59:04,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:59" (2/3) ... [2019-10-07 14:59:04,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667a1d30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:59:04, skipping insertion in model container [2019-10-07 14:59:04,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:59:04" (3/3) ... [2019-10-07 14:59:04,369 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product34.cil.c [2019-10-07 14:59:04,379 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:59:04,389 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:59:04,400 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:59:04,432 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:59:04,432 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:59:04,432 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:59:04,433 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:59:04,433 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:59:04,433 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:59:04,433 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:59:04,433 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:59:04,516 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states. [2019-10-07 14:59:04,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-07 14:59:04,533 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:04,534 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:59:04,535 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:04,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:04,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1156743153, now seen corresponding path program 1 times [2019-10-07 14:59:04,548 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:04,549 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:04,549 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:04,549 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:04,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:05,217 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:59:05,218 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:05,218 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:05,219 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:59:05,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:59:05,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:59:05,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:59:05,242 INFO L87 Difference]: Start difference. First operand 455 states. Second operand 2 states. [2019-10-07 14:59:05,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:05,327 INFO L93 Difference]: Finished difference Result 692 states and 826 transitions. [2019-10-07 14:59:05,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:59:05,328 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 136 [2019-10-07 14:59:05,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:05,354 INFO L225 Difference]: With dead ends: 692 [2019-10-07 14:59:05,354 INFO L226 Difference]: Without dead ends: 428 [2019-10-07 14:59:05,361 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 14:59:05,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2019-10-07 14:59:05,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2019-10-07 14:59:05,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2019-10-07 14:59:05,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 507 transitions. [2019-10-07 14:59:05,451 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 507 transitions. Word has length 136 [2019-10-07 14:59:05,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:05,454 INFO L462 AbstractCegarLoop]: Abstraction has 428 states and 507 transitions. [2019-10-07 14:59:05,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:59:05,454 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 507 transitions. [2019-10-07 14:59:05,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-07 14:59:05,460 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:05,461 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:59:05,461 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:05,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:05,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1386676786, now seen corresponding path program 1 times [2019-10-07 14:59:05,462 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:05,462 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:05,462 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:05,462 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:05,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:05,806 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:59:05,806 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:05,807 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:05,807 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:59:05,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:59:05,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:59:05,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:59:05,810 INFO L87 Difference]: Start difference. First operand 428 states and 507 transitions. Second operand 3 states. [2019-10-07 14:59:05,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:05,897 INFO L93 Difference]: Finished difference Result 677 states and 794 transitions. [2019-10-07 14:59:05,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:59:05,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2019-10-07 14:59:05,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:05,909 INFO L225 Difference]: With dead ends: 677 [2019-10-07 14:59:05,909 INFO L226 Difference]: Without dead ends: 430 [2019-10-07 14:59:05,914 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 14:59:05,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2019-10-07 14:59:05,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2019-10-07 14:59:05,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2019-10-07 14:59:05,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 509 transitions. [2019-10-07 14:59:05,980 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 509 transitions. Word has length 137 [2019-10-07 14:59:05,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:05,981 INFO L462 AbstractCegarLoop]: Abstraction has 430 states and 509 transitions. [2019-10-07 14:59:05,981 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:59:05,981 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 509 transitions. [2019-10-07 14:59:05,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-07 14:59:05,988 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:05,988 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] [2019-10-07 14:59:05,988 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:05,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:05,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1337377543, now seen corresponding path program 1 times [2019-10-07 14:59:05,989 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:05,989 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:05,989 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:05,990 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:05,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:06,234 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:59:06,235 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:06,235 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:06,235 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:59:06,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:59:06,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:59:06,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:59:06,237 INFO L87 Difference]: Start difference. First operand 430 states and 509 transitions. Second operand 3 states. [2019-10-07 14:59:06,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:06,275 INFO L93 Difference]: Finished difference Result 844 states and 1028 transitions. [2019-10-07 14:59:06,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:59:06,276 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-07 14:59:06,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:06,280 INFO L225 Difference]: With dead ends: 844 [2019-10-07 14:59:06,280 INFO L226 Difference]: Without dead ends: 472 [2019-10-07 14:59:06,282 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 14:59:06,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2019-10-07 14:59:06,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 471. [2019-10-07 14:59:06,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2019-10-07 14:59:06,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 580 transitions. [2019-10-07 14:59:06,307 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 580 transitions. Word has length 142 [2019-10-07 14:59:06,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:06,307 INFO L462 AbstractCegarLoop]: Abstraction has 471 states and 580 transitions. [2019-10-07 14:59:06,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:59:06,308 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 580 transitions. [2019-10-07 14:59:06,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-07 14:59:06,311 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:06,314 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] [2019-10-07 14:59:06,314 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:06,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:06,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1455376811, now seen corresponding path program 1 times [2019-10-07 14:59:06,315 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:06,315 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:06,315 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:06,315 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:06,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:07,002 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 14:59:07,002 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:07,002 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:07,003 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-07 14:59:07,003 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-07 14:59:07,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-07 14:59:07,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:59:07,004 INFO L87 Difference]: Start difference. First operand 471 states and 580 transitions. Second operand 23 states. [2019-10-07 14:59:20,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:20,145 INFO L93 Difference]: Finished difference Result 1002 states and 1212 transitions. [2019-10-07 14:59:20,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-07 14:59:20,145 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 143 [2019-10-07 14:59:20,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:20,152 INFO L225 Difference]: With dead ends: 1002 [2019-10-07 14:59:20,152 INFO L226 Difference]: Without dead ends: 761 [2019-10-07 14:59:20,154 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=215, Invalid=1855, Unknown=0, NotChecked=0, Total=2070 [2019-10-07 14:59:20,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2019-10-07 14:59:20,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 752. [2019-10-07 14:59:20,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2019-10-07 14:59:20,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 918 transitions. [2019-10-07 14:59:20,200 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 918 transitions. Word has length 143 [2019-10-07 14:59:20,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:20,201 INFO L462 AbstractCegarLoop]: Abstraction has 752 states and 918 transitions. [2019-10-07 14:59:20,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-07 14:59:20,202 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 918 transitions. [2019-10-07 14:59:20,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-07 14:59:20,205 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:20,205 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] [2019-10-07 14:59:20,206 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:20,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:20,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1656692352, now seen corresponding path program 1 times [2019-10-07 14:59:20,206 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:20,206 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:20,206 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:20,207 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:20,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:20,797 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 14:59:20,798 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:20,798 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:20,798 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-07 14:59:20,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-07 14:59:20,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-07 14:59:20,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2019-10-07 14:59:20,800 INFO L87 Difference]: Start difference. First operand 752 states and 918 transitions. Second operand 25 states. [2019-10-07 14:59:25,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:25,824 INFO L93 Difference]: Finished difference Result 859 states and 1043 transitions. [2019-10-07 14:59:25,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-07 14:59:25,825 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 149 [2019-10-07 14:59:25,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:25,836 INFO L225 Difference]: With dead ends: 859 [2019-10-07 14:59:25,836 INFO L226 Difference]: Without dead ends: 852 [2019-10-07 14:59:25,838 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=233, Invalid=2317, Unknown=0, NotChecked=0, Total=2550 [2019-10-07 14:59:25,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2019-10-07 14:59:25,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 845. [2019-10-07 14:59:25,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 845 states. [2019-10-07 14:59:25,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1028 transitions. [2019-10-07 14:59:25,894 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1028 transitions. Word has length 149 [2019-10-07 14:59:25,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:25,895 INFO L462 AbstractCegarLoop]: Abstraction has 845 states and 1028 transitions. [2019-10-07 14:59:25,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-07 14:59:25,895 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1028 transitions. [2019-10-07 14:59:25,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2019-10-07 14:59:25,902 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:25,902 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:25,902 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:25,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:25,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1946845594, now seen corresponding path program 1 times [2019-10-07 14:59:25,903 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:25,903 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:25,903 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:25,903 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:25,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:26,604 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 14:59:26,604 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:26,604 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:26,605 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2019-10-07 14:59:26,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-10-07 14:59:26,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-10-07 14:59:26,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2019-10-07 14:59:26,606 INFO L87 Difference]: Start difference. First operand 845 states and 1028 transitions. Second operand 30 states. [2019-10-07 14:59:41,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:41,722 INFO L93 Difference]: Finished difference Result 2382 states and 3002 transitions. [2019-10-07 14:59:41,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2019-10-07 14:59:41,722 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 266 [2019-10-07 14:59:41,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:41,738 INFO L225 Difference]: With dead ends: 2382 [2019-10-07 14:59:41,738 INFO L226 Difference]: Without dead ends: 1679 [2019-10-07 14:59:41,744 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1706 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=482, Invalid=7000, Unknown=0, NotChecked=0, Total=7482 [2019-10-07 14:59:41,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2019-10-07 14:59:41,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1639. [2019-10-07 14:59:41,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1639 states. [2019-10-07 14:59:41,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2030 transitions. [2019-10-07 14:59:41,837 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2030 transitions. Word has length 266 [2019-10-07 14:59:41,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:41,838 INFO L462 AbstractCegarLoop]: Abstraction has 1639 states and 2030 transitions. [2019-10-07 14:59:41,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-10-07 14:59:41,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2030 transitions. [2019-10-07 14:59:41,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2019-10-07 14:59:41,847 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:41,848 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:41,848 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:41,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:41,849 INFO L82 PathProgramCache]: Analyzing trace with hash -2116601585, now seen corresponding path program 1 times [2019-10-07 14:59:41,849 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:41,849 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:41,849 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:41,849 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:41,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:42,184 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 14:59:42,184 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:42,185 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:42,185 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:59:42,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:59:42,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:59:42,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:59:42,189 INFO L87 Difference]: Start difference. First operand 1639 states and 2030 transitions. Second operand 10 states. [2019-10-07 14:59:42,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:42,312 INFO L93 Difference]: Finished difference Result 3008 states and 3789 transitions. [2019-10-07 14:59:42,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:59:42,312 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 270 [2019-10-07 14:59:42,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:42,326 INFO L225 Difference]: With dead ends: 3008 [2019-10-07 14:59:42,326 INFO L226 Difference]: Without dead ends: 1639 [2019-10-07 14:59:42,331 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 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 14:59:42,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2019-10-07 14:59:42,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1639. [2019-10-07 14:59:42,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1639 states. [2019-10-07 14:59:42,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2026 transitions. [2019-10-07 14:59:42,424 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2026 transitions. Word has length 270 [2019-10-07 14:59:42,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:42,425 INFO L462 AbstractCegarLoop]: Abstraction has 1639 states and 2026 transitions. [2019-10-07 14:59:42,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:59:42,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2026 transitions. [2019-10-07 14:59:42,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-10-07 14:59:42,434 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:42,434 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:42,435 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:42,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:42,435 INFO L82 PathProgramCache]: Analyzing trace with hash 2051188935, now seen corresponding path program 1 times [2019-10-07 14:59:42,435 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:42,436 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:42,436 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:42,436 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:42,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2019-10-07 14:59:42,845 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:42,845 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:42,845 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-07 14:59:42,847 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 14:59:42,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 14:59:42,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:59:42,847 INFO L87 Difference]: Start difference. First operand 1639 states and 2026 transitions. Second operand 11 states. [2019-10-07 14:59:46,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:46,484 INFO L93 Difference]: Finished difference Result 3801 states and 4692 transitions. [2019-10-07 14:59:46,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:59:46,484 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 275 [2019-10-07 14:59:46,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:46,501 INFO L225 Difference]: With dead ends: 3801 [2019-10-07 14:59:46,501 INFO L226 Difference]: Without dead ends: 2616 [2019-10-07 14:59:46,506 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:59:46,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2019-10-07 14:59:46,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 2494. [2019-10-07 14:59:46,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2494 states. [2019-10-07 14:59:46,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3082 transitions. [2019-10-07 14:59:46,662 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3082 transitions. Word has length 275 [2019-10-07 14:59:46,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:46,664 INFO L462 AbstractCegarLoop]: Abstraction has 2494 states and 3082 transitions. [2019-10-07 14:59:46,664 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 14:59:46,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3082 transitions. [2019-10-07 14:59:46,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2019-10-07 14:59:46,675 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:46,676 INFO L385 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:46,676 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:46,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:46,676 INFO L82 PathProgramCache]: Analyzing trace with hash 608553438, now seen corresponding path program 1 times [2019-10-07 14:59:46,677 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:46,677 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:46,677 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:46,677 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:46,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:47,489 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 26 proven. 7 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-10-07 14:59:47,490 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:47,490 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:59:47,490 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 14:59:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:48,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 3930 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:59:48,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:59:48,528 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-10-07 14:59:48,529 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:59:49,659 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-10-07 14:59:49,659 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:59:49,689 INFO L162 IcfgInterpreter]: Started Sifa with 264 locations of interest [2019-10-07 14:59:49,690 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:59:49,697 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:59:49,705 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:59:49,706 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:00:50,481 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 697 [2019-10-07 15:00:54,510 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 341 DAG size of output: 277 [2019-10-07 15:00:54,859 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 745 [2019-10-07 15:00:55,215 WARN L191 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 745 [2019-10-07 15:00:55,556 WARN L191 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 745 [2019-10-07 15:00:55,727 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 15:00:56,370 WARN L191 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 15:00:57,044 WARN L191 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 15:00:57,665 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 15:00:57,854 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 15:00:58,465 WARN L191 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 15:00:59,883 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1045 DAG size of output: 1043 [2019-10-07 15:01:00,542 WARN L191 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 15:01:00,678 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 15:01:01,287 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 15:01:01,964 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 15:01:02,602 WARN L191 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 15:01:02,730 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 15:01:03,374 WARN L191 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 1043 [2019-10-07 15:01:03,401 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 565 for LOIs [2019-10-07 15:01:03,723 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:01:03,827 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:01:03,948 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 15:01:04,404 WARN L191 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 960 [2019-10-07 15:01:04,406 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1105 for LOIs [2019-10-07 15:01:05,062 WARN L191 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:05,660 WARN L191 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:05,906 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:06,923 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:07,538 WARN L191 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:08,202 WARN L191 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:08,523 WARN L191 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:09,557 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:10,191 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:10,786 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:11,049 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:12,086 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:13,304 WARN L191 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 1305 DAG size of output: 1105 [2019-10-07 15:01:13,897 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:14,184 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:15,172 WARN L191 SmtUtils]: Spent 986.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:16,253 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:16,858 WARN L191 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:17,165 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:18,144 WARN L191 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:18,745 WARN L191 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:19,357 WARN L191 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:19,606 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:20,623 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:21,216 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:21,816 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:22,060 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:23,036 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:23,628 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:24,252 WARN L191 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:24,512 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:25,487 WARN L191 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:26,078 WARN L191 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:26,695 WARN L191 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:26,935 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:27,910 WARN L191 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:28,506 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:29,135 WARN L191 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:29,380 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:30,358 WARN L191 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:30,946 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:31,551 WARN L191 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:31,791 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:32,764 WARN L191 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:33,353 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:33,972 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:34,211 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:35,185 WARN L191 SmtUtils]: Spent 972.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:35,771 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:36,378 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 1105 [2019-10-07 15:01:36,617 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:37,594 WARN L191 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:38,687 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:39,674 WARN L191 SmtUtils]: Spent 982.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:39,926 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:40,892 WARN L191 SmtUtils]: Spent 964.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:42,675 WARN L191 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 1305 DAG size of output: 1303 [2019-10-07 15:01:43,665 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:43,925 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:44,897 WARN L191 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:45,867 WARN L191 SmtUtils]: Spent 966.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:46,859 WARN L191 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:47,098 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:01:48,067 WARN L191 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:01:49,090 WARN L191 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 15:01:50,074 WARN L191 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 15:01:50,321 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:01:51,306 WARN L191 SmtUtils]: Spent 983.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 15:01:53,075 WARN L191 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 1309 DAG size of output: 1307 [2019-10-07 15:01:54,065 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 15:01:54,320 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:01:55,299 WARN L191 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 15:01:57,066 WARN L191 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 1309 DAG size of output: 1307 [2019-10-07 15:01:58,063 WARN L191 SmtUtils]: Spent 993.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 15:01:58,304 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:01:59,286 WARN L191 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 15:02:00,266 WARN L191 SmtUtils]: Spent 972.00 ms on a formula simplification that was a NOOP. DAG size: 1305 [2019-10-07 15:02:01,239 WARN L191 SmtUtils]: Spent 969.00 ms on a formula simplification that was a NOOP. DAG size: 1305 [2019-10-07 15:02:01,486 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:02:02,463 WARN L191 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 15:02:03,439 WARN L191 SmtUtils]: Spent 972.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 15:02:04,426 WARN L191 SmtUtils]: Spent 982.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 15:02:04,680 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:02:05,666 WARN L191 SmtUtils]: Spent 983.00 ms on a formula simplification that was a NOOP. DAG size: 1309 [2019-10-07 15:02:08,387 WARN L191 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 1305 DAG size of output: 1303 [2019-10-07 15:02:09,350 WARN L191 SmtUtils]: Spent 960.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:02:09,605 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:02:10,586 WARN L191 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:02:12,356 WARN L191 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 1305 DAG size of output: 1303 [2019-10-07 15:02:13,332 WARN L191 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:02:13,602 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:02:14,573 WARN L191 SmtUtils]: Spent 969.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:02:15,567 WARN L191 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:02:16,544 WARN L191 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:02:16,783 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:02:17,755 WARN L191 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:02:20,421 WARN L191 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 1305 DAG size of output: 1303 [2019-10-07 15:02:21,410 WARN L191 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:02:21,660 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:02:22,646 WARN L191 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:02:24,755 WARN L191 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 1305 DAG size of output: 1303 [2019-10-07 15:02:25,749 WARN L191 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:02:26,001 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:02:26,984 WARN L191 SmtUtils]: Spent 981.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:02:27,973 WARN L191 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:02:28,956 WARN L191 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:02:29,194 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:02:30,175 WARN L191 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 1303 [2019-10-07 15:02:31,925 WARN L191 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 1309 DAG size of output: 1305 [2019-10-07 15:02:32,937 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1305 [2019-10-07 15:02:33,191 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:02:34,189 WARN L191 SmtUtils]: Spent 996.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 15:02:35,919 WARN L191 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 1309 DAG size of output: 1305 [2019-10-07 15:02:36,919 WARN L191 SmtUtils]: Spent 996.00 ms on a formula simplification that was a NOOP. DAG size: 1305 [2019-10-07 15:02:37,175 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:02:38,181 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 15:02:39,180 WARN L191 SmtUtils]: Spent 995.00 ms on a formula simplification that was a NOOP. DAG size: 1305 [2019-10-07 15:02:40,173 WARN L191 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 1305 [2019-10-07 15:02:40,420 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:02:41,432 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 15:02:43,167 WARN L191 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 1314 DAG size of output: 1307 [2019-10-07 15:02:44,180 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 15:02:44,437 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:02:45,449 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 15:02:47,277 WARN L191 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 1316 DAG size of output: 1309 [2019-10-07 15:02:48,280 WARN L191 SmtUtils]: Spent 1000.00 ms on a formula simplification that was a NOOP. DAG size: 1309 [2019-10-07 15:02:48,536 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:02:49,541 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1309 [2019-10-07 15:02:49,798 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:02:49,800 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 15:02:49,807 INFO L168 Benchmark]: Toolchain (without parser) took 231707.85 ms. Allocated memory was 138.9 MB in the beginning and 2.6 GB in the end (delta: 2.5 GB). Free memory was 101.5 MB in the beginning and 913.5 MB in the end (delta: -812.0 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2019-10-07 15:02:49,808 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 15:02:49,809 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1215.30 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 101.1 MB in the beginning and 136.2 MB in the end (delta: -35.1 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:49,809 INFO L168 Benchmark]: Boogie Preprocessor took 193.23 ms. Allocated memory is still 204.5 MB. Free memory was 136.2 MB in the beginning and 127.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:49,813 INFO L168 Benchmark]: RCFGBuilder took 4850.33 ms. Allocated memory was 204.5 MB in the beginning and 305.7 MB in the end (delta: 101.2 MB). Free memory was 127.1 MB in the beginning and 84.9 MB in the end (delta: 42.2 MB). Peak memory consumption was 143.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:49,814 INFO L168 Benchmark]: TraceAbstraction took 225444.00 ms. Allocated memory was 305.7 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 84.9 MB in the beginning and 913.5 MB in the end (delta: -828.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2019-10-07 15:02:49,818 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1215.30 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 101.1 MB in the beginning and 136.2 MB in the end (delta: -35.1 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 193.23 ms. Allocated memory is still 204.5 MB. Free memory was 136.2 MB in the beginning and 127.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4850.33 ms. Allocated memory was 204.5 MB in the beginning and 305.7 MB in the end (delta: 101.2 MB). Free memory was 127.1 MB in the beginning and 84.9 MB in the end (delta: 42.2 MB). Peak memory consumption was 143.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 225444.00 ms. Allocated memory was 305.7 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 84.9 MB in the beginning and 913.5 MB in the end (delta: -828.6 MB). Peak memory consumption was 1.5 GB. 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...