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_spec1_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:44:10,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:44:10,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:44:10,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:44:10,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:44:10,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:44:10,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:44:10,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:44:10,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:44:10,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:44:10,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:44:10,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:44:10,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:44:10,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:44:10,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:44:10,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:44:10,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:44:10,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:44:10,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:44:10,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:44:10,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:44:10,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:44:10,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:44:10,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:44:10,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:44:10,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:44:10,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:44:10,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:44:10,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:44:10,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:44:10,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:44:10,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:44:10,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:44:10,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:44:10,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:44:10,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:44:10,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:44:10,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:44:10,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:44:10,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:44:10,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:44:10,230 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 14:44:10,260 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:44:10,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:44:10,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:44:10,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:44:10,262 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:44:10,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:44:10,262 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:44:10,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:44:10,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:44:10,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:44:10,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:44:10,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:44:10,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:44:10,264 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:44:10,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:44:10,264 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:44:10,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:44:10,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:44:10,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:44:10,265 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:44:10,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:44:10,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:44:10,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:44:10,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:44:10,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:44:10,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:44:10,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:44:10,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:44:10,267 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 14:44:10,571 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:44:10,595 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:44:10,599 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:44:10,600 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:44:10,601 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:44:10,602 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product15.cil.c [2019-10-07 14:44:10,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/294090afe/a69f46dceb0141ae9bd8eaa835bcb185/FLAGe0cd1c911 [2019-10-07 14:44:11,300 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:44:11,301 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product15.cil.c [2019-10-07 14:44:11,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/294090afe/a69f46dceb0141ae9bd8eaa835bcb185/FLAGe0cd1c911 [2019-10-07 14:44:11,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/294090afe/a69f46dceb0141ae9bd8eaa835bcb185 [2019-10-07 14:44:11,518 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:44:11,520 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:44:11,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:44:11,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:44:11,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:44:11,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:44:11" (1/1) ... [2019-10-07 14:44:11,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7020f9f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:11, skipping insertion in model container [2019-10-07 14:44:11,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:44:11" (1/1) ... [2019-10-07 14:44:11,534 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:44:11,607 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:44:12,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:44:12,381 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:44:12,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:44:12,618 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:44:12,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:12 WrapperNode [2019-10-07 14:44:12,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:44:12,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:44:12,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:44:12,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:44:12,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:12" (1/1) ... [2019-10-07 14:44:12,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:12" (1/1) ... [2019-10-07 14:44:12,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:12" (1/1) ... [2019-10-07 14:44:12,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:12" (1/1) ... [2019-10-07 14:44:12,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:12" (1/1) ... [2019-10-07 14:44:12,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:12" (1/1) ... [2019-10-07 14:44:12,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:12" (1/1) ... [2019-10-07 14:44:12,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:44:12,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:44:12,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:44:12,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:44:12,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:12" (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 14:44:12,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:44:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:44:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:44:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:44:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:44:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:44:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:44:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:44:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:44:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:44:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:44:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:44:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:44:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:44:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:44:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:44:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:44:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:44:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:44:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:44:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:44:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:44:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:44:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:44:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:44:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:44:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:44:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:44:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:44:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:44:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:44:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:44:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:44:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:44:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:44:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:44:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:44:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:44:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:44:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:44:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:44:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:44:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:44:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:44:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:44:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:44:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:44:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:44:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:44:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:44:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:44:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:44:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:44:12,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:44:12,867 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:44:12,867 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:44:12,867 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:44:12,867 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:44:12,867 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:44:12,867 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:44:12,868 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:44:12,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:44:12,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:44:12,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:44:12,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:44:12,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:44:12,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:44:12,869 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:44:12,869 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:44:12,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:44:12,870 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:44:12,870 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:44:12,870 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:44:12,870 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:44:12,870 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:44:12,870 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:44:12,871 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:44:12,871 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:44:12,871 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:44:12,871 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:44:12,871 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:44:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:44:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:44:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:44:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:44:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:44:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:44:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-07 14:44:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:44:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:44:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:44:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:44:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 14:44:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-07 14:44:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:44:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:44:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:44:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:44:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:44:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:44:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:44:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:44:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:44:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:44:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:44:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:44:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:44:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:44:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:44:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:44:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:44:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:44:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:44:12,877 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:44:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:44:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:44:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:44:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:44:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:44:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:44:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:44:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:44:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:44:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:44:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:44:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:44:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:44:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:44:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:44:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:44:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:44:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:44:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:44:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:44:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:44:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:44:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:44:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:44:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:44:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:44:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:44:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:44:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:44:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:44:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:44:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:44:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:44:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:44:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:44:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:44:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:44:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:44:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:44:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:44:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:44:12,884 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:44:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:44:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:44:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:44:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:44:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:44:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:44:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:44:12,885 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:44:12,886 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:44:12,886 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:44:12,886 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:44:12,886 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:44:12,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:44:12,886 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:44:12,886 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:44:12,887 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:44:12,887 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:44:12,887 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:44:12,887 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:44:12,887 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:44:12,887 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:44:12,887 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:44:12,887 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:44:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:44:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:44:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:44:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:44:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:44:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:44:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:44:12,888 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:44:12,889 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:44:12,889 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:44:12,889 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:44:12,889 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:44:12,889 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:44:12,889 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:44:12,889 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:44:12,890 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:44:12,890 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:44:12,890 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:44:12,890 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:44:12,890 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:44:12,890 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:44:12,890 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:44:12,890 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:44:12,891 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:44:12,891 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:44:12,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:44:12,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:44:12,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:44:12,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:44:12,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:44:12,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:44:12,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:44:12,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:44:12,892 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:44:12,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:44:12,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:44:12,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:44:12,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:44:12,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-07 14:44:12,893 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:44:12,893 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:44:12,893 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:44:12,893 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:44:12,893 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:44:12,894 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:44:12,894 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:44:12,894 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:44:12,894 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 14:44:12,894 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-07 14:44:12,894 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:44:12,894 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:44:12,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:44:12,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:44:12,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:44:17,237 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:44:17,238 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:44:17,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:44:17 BoogieIcfgContainer [2019-10-07 14:44:17,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:44:17,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:44:17,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:44:17,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:44:17,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:44:11" (1/3) ... [2019-10-07 14:44:17,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751d77f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:44:17, skipping insertion in model container [2019-10-07 14:44:17,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:12" (2/3) ... [2019-10-07 14:44:17,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751d77f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:44:17, skipping insertion in model container [2019-10-07 14:44:17,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:44:17" (3/3) ... [2019-10-07 14:44:17,248 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product15.cil.c [2019-10-07 14:44:17,257 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:44:17,267 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:44:17,278 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:44:17,306 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:44:17,306 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:44:17,306 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:44:17,307 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:44:17,307 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:44:17,307 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:44:17,307 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:44:17,307 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:44:17,344 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states. [2019-10-07 14:44:17,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-07 14:44:17,361 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:44:17,362 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:44:17,364 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:44:17,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:44:17,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1300469455, now seen corresponding path program 1 times [2019-10-07 14:44:17,382 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:44:17,382 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:44:17,383 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:44:17,383 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:44:17,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:44:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:44:18,074 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:44:18,074 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:44:18,083 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:44:18,084 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:44:18,093 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:44:18,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:44:18,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:44:18,111 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 2 states. [2019-10-07 14:44:18,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:44:18,168 INFO L93 Difference]: Finished difference Result 448 states and 529 transitions. [2019-10-07 14:44:18,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:44:18,170 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 114 [2019-10-07 14:44:18,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:44:18,202 INFO L225 Difference]: With dead ends: 448 [2019-10-07 14:44:18,202 INFO L226 Difference]: Without dead ends: 299 [2019-10-07 14:44:18,211 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 14:44:18,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2019-10-07 14:44:18,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2019-10-07 14:44:18,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2019-10-07 14:44:18,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 353 transitions. [2019-10-07 14:44:18,361 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 353 transitions. Word has length 114 [2019-10-07 14:44:18,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:44:18,365 INFO L462 AbstractCegarLoop]: Abstraction has 299 states and 353 transitions. [2019-10-07 14:44:18,365 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:44:18,365 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 353 transitions. [2019-10-07 14:44:18,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-07 14:44:18,378 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:44:18,379 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:44:18,379 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:44:18,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:44:18,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1904843713, now seen corresponding path program 1 times [2019-10-07 14:44:18,380 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:44:18,380 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:44:18,381 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:44:18,381 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:44:18,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:44:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:44:18,632 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:44:18,633 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:44:18,633 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:44:18,633 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:44:18,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:44:18,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:44:18,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:44:18,636 INFO L87 Difference]: Start difference. First operand 299 states and 353 transitions. Second operand 3 states. [2019-10-07 14:44:18,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:44:18,674 INFO L93 Difference]: Finished difference Result 433 states and 501 transitions. [2019-10-07 14:44:18,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:44:18,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-10-07 14:44:18,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:44:18,678 INFO L225 Difference]: With dead ends: 433 [2019-10-07 14:44:18,678 INFO L226 Difference]: Without dead ends: 301 [2019-10-07 14:44:18,681 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 14:44:18,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2019-10-07 14:44:18,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2019-10-07 14:44:18,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2019-10-07 14:44:18,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 355 transitions. [2019-10-07 14:44:18,713 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 355 transitions. Word has length 115 [2019-10-07 14:44:18,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:44:18,714 INFO L462 AbstractCegarLoop]: Abstraction has 301 states and 355 transitions. [2019-10-07 14:44:18,714 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:44:18,714 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 355 transitions. [2019-10-07 14:44:18,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-07 14:44:18,716 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:44:18,717 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] [2019-10-07 14:44:18,717 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:44:18,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:44:18,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1785290814, now seen corresponding path program 1 times [2019-10-07 14:44:18,718 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:44:18,718 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:44:18,718 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:44:18,718 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:44:18,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:44:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:44:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:44:18,860 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:44:18,860 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:44:18,860 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:44:18,861 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:44:18,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:44:18,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:44:18,862 INFO L87 Difference]: Start difference. First operand 301 states and 355 transitions. Second operand 3 states. [2019-10-07 14:44:18,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:44:18,894 INFO L93 Difference]: Finished difference Result 584 states and 717 transitions. [2019-10-07 14:44:18,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:44:18,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2019-10-07 14:44:18,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:44:18,903 INFO L225 Difference]: With dead ends: 584 [2019-10-07 14:44:18,904 INFO L226 Difference]: Without dead ends: 341 [2019-10-07 14:44:18,908 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 14:44:18,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2019-10-07 14:44:18,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 340. [2019-10-07 14:44:18,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-10-07 14:44:18,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 423 transitions. [2019-10-07 14:44:18,948 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 423 transitions. Word has length 124 [2019-10-07 14:44:18,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:44:18,949 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 423 transitions. [2019-10-07 14:44:18,949 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:44:18,949 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 423 transitions. [2019-10-07 14:44:18,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-07 14:44:18,956 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:44:18,956 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] [2019-10-07 14:44:18,956 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:44:18,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:44:18,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1032980240, now seen corresponding path program 1 times [2019-10-07 14:44:18,957 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:44:18,957 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:44:18,957 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:44:18,958 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:44:18,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:44:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:44:19,171 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:44:19,171 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:44:19,171 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:44:19,171 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:44:19,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:44:19,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:44:19,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:44:19,174 INFO L87 Difference]: Start difference. First operand 340 states and 423 transitions. Second operand 3 states. [2019-10-07 14:44:19,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:44:19,218 INFO L93 Difference]: Finished difference Result 698 states and 916 transitions. [2019-10-07 14:44:19,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:44:19,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2019-10-07 14:44:19,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:44:19,228 INFO L225 Difference]: With dead ends: 698 [2019-10-07 14:44:19,229 INFO L226 Difference]: Without dead ends: 416 [2019-10-07 14:44:19,231 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 14:44:19,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2019-10-07 14:44:19,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 415. [2019-10-07 14:44:19,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2019-10-07 14:44:19,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 553 transitions. [2019-10-07 14:44:19,275 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 553 transitions. Word has length 125 [2019-10-07 14:44:19,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:44:19,277 INFO L462 AbstractCegarLoop]: Abstraction has 415 states and 553 transitions. [2019-10-07 14:44:19,278 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:44:19,278 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 553 transitions. [2019-10-07 14:44:19,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-07 14:44:19,285 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:44:19,286 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] [2019-10-07 14:44:19,286 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:44:19,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:44:19,287 INFO L82 PathProgramCache]: Analyzing trace with hash 2092358711, now seen corresponding path program 1 times [2019-10-07 14:44:19,287 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:44:19,287 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:44:19,288 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:44:19,288 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:44:19,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:44:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:44:19,589 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:44:19,589 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:44:19,590 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:44:19,590 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 14:44:20,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:44:20,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 2336 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:44:20,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:44:20,351 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:44:20,351 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:44:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:44:20,559 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:44:20,597 INFO L162 IcfgInterpreter]: Started Sifa with 117 locations of interest [2019-10-07 14:44:20,598 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:44:20,605 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:44:20,613 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:44:20,613 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:44:52,772 WARN L191 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:44:55,767 WARN L191 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 207 [2019-10-07 14:44:56,100 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 14:44:56,403 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 14:44:56,735 WARN L191 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 14:44:56,934 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 439 [2019-10-07 14:44:57,538 WARN L191 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 965 [2019-10-07 14:44:58,130 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 965 [2019-10-07 14:44:58,683 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 965 [2019-10-07 14:44:58,842 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 439 [2019-10-07 14:44:59,427 WARN L191 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 965 [2019-10-07 14:45:00,695 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 967 DAG size of output: 965 [2019-10-07 14:45:01,266 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 965 [2019-10-07 14:45:01,409 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 439 [2019-10-07 14:45:01,952 WARN L191 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 965 [2019-10-07 14:45:02,532 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 965 [2019-10-07 14:45:03,060 WARN L191 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 965 [2019-10-07 14:45:03,174 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 439 [2019-10-07 14:45:03,706 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 965 [2019-10-07 14:45:03,730 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 538 for LOIs [2019-10-07 14:45:04,084 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 615 [2019-10-07 14:45:04,292 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 439 [2019-10-07 14:45:04,722 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 906 [2019-10-07 14:45:04,724 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 998 for LOIs [2019-10-07 14:45:05,244 WARN L191 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:05,762 WARN L191 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:05,957 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:45:06,706 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:07,230 WARN L191 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:07,744 WARN L191 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:07,940 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:45:08,692 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:09,253 WARN L191 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:09,776 WARN L191 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:09,975 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:45:10,713 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:11,684 WARN L191 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 1123 DAG size of output: 998 [2019-10-07 14:45:12,200 WARN L191 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:12,729 WARN L191 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 559 DAG size of output: 557 [2019-10-07 14:45:13,478 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:14,000 WARN L191 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:14,510 WARN L191 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:14,718 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:45:15,451 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:15,974 WARN L191 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:16,486 WARN L191 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:16,687 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:45:17,418 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:17,928 WARN L191 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:18,443 WARN L191 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:18,623 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:45:19,355 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:19,868 WARN L191 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:20,385 WARN L191 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:20,581 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:45:21,315 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:21,830 WARN L191 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:22,341 WARN L191 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:22,524 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:45:23,265 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:23,771 WARN L191 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:24,287 WARN L191 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:24,467 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:45:25,199 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:25,715 WARN L191 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:26,227 WARN L191 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:26,413 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:45:27,153 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:27,662 WARN L191 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:28,178 WARN L191 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:28,360 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:45:29,093 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:29,606 WARN L191 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:30,118 WARN L191 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 14:45:30,298 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:45:31,039 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:31,885 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:32,620 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:32,806 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:45:33,541 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:34,906 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1123 DAG size of output: 1121 [2019-10-07 14:45:35,643 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:35,911 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:45:36,655 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:37,387 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:38,121 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:38,301 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:45:39,035 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:39,816 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:45:40,556 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:45:40,749 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 14:45:41,493 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1125 [2019-10-07 14:45:42,874 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1127 DAG size of output: 1123 [2019-10-07 14:45:43,611 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:45:43,807 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 14:45:44,546 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1125 [2019-10-07 14:45:45,280 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:45:46,017 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:45:46,201 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 14:45:46,947 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1125 [2019-10-07 14:45:47,708 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 14:45:48,457 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 14:45:48,642 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 14:45:49,384 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 14:45:50,134 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1132 [2019-10-07 14:45:50,890 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1132 [2019-10-07 14:45:51,085 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 14:45:51,830 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1132 [2019-10-07 14:45:53,189 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1123 DAG size of output: 1121 [2019-10-07 14:45:53,928 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:54,120 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:45:54,852 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:56,215 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1123 DAG size of output: 1121 [2019-10-07 14:45:56,940 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:57,151 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:45:57,892 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:58,626 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:59,362 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:45:59,541 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:46:00,276 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:46:02,405 WARN L191 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 1123 DAG size of output: 1121 [2019-10-07 14:46:03,141 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:46:03,329 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:46:04,066 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:46:05,400 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1123 DAG size of output: 1121 [2019-10-07 14:46:06,137 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:46:06,329 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:46:07,066 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:46:07,807 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:46:08,539 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:46:08,720 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:46:09,462 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1121 [2019-10-07 14:46:11,654 WARN L191 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 1127 DAG size of output: 1125 [2019-10-07 14:46:12,382 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1125 [2019-10-07 14:46:12,572 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 14:46:13,297 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1125 [2019-10-07 14:46:14,629 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1127 DAG size of output: 1125 [2019-10-07 14:46:15,370 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1125 [2019-10-07 14:46:15,556 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 14:46:16,293 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1125 [2019-10-07 14:46:17,019 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1125 [2019-10-07 14:46:17,765 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1125 [2019-10-07 14:46:17,945 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 14:46:18,682 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1125 [2019-10-07 14:46:20,010 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1132 DAG size of output: 1123 [2019-10-07 14:46:20,737 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1123 [2019-10-07 14:46:20,929 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 14:46:21,655 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1125 [2019-10-07 14:46:22,909 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1134 DAG size of output: 1125 [2019-10-07 14:46:23,655 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1125 [2019-10-07 14:46:23,854 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-07 14:46:24,597 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1127 [2019-10-07 14:46:24,855 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:46:24,856 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:46:24,866 INFO L168 Benchmark]: Toolchain (without parser) took 133344.80 ms. Allocated memory was 145.8 MB in the beginning and 834.1 MB in the end (delta: 688.4 MB). Free memory was 101.0 MB in the beginning and 620.7 MB in the end (delta: -519.7 MB). Peak memory consumption was 168.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:46:24,867 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 14:46:24,869 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1097.86 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.6 MB in the beginning and 139.7 MB in the end (delta: -39.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:46:24,871 INFO L168 Benchmark]: Boogie Preprocessor took 171.96 ms. Allocated memory is still 203.4 MB. Free memory was 139.7 MB in the beginning and 131.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:46:24,872 INFO L168 Benchmark]: RCFGBuilder took 4448.56 ms. Allocated memory was 203.4 MB in the beginning and 296.7 MB in the end (delta: 93.3 MB). Free memory was 131.7 MB in the beginning and 108.2 MB in the end (delta: 23.5 MB). Peak memory consumption was 116.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:46:24,873 INFO L168 Benchmark]: TraceAbstraction took 127620.59 ms. Allocated memory was 296.7 MB in the beginning and 834.1 MB in the end (delta: 537.4 MB). Free memory was 108.2 MB in the beginning and 620.7 MB in the end (delta: -512.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:46:24,880 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1097.86 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.6 MB in the beginning and 139.7 MB in the end (delta: -39.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 171.96 ms. Allocated memory is still 203.4 MB. Free memory was 139.7 MB in the beginning and 131.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4448.56 ms. Allocated memory was 203.4 MB in the beginning and 296.7 MB in the end (delta: 93.3 MB). Free memory was 131.7 MB in the beginning and 108.2 MB in the end (delta: 23.5 MB). Peak memory consumption was 116.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 127620.59 ms. Allocated memory was 296.7 MB in the beginning and 834.1 MB in the end (delta: 537.4 MB). Free memory was 108.2 MB in the beginning and 620.7 MB in the end (delta: -512.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...