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_spec11_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:41:08,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:41:08,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:41:08,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:41:08,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:41:08,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:41:08,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:41:08,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:41:08,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:41:08,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:41:08,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:41:08,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:41:08,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:41:08,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:41:08,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:41:08,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:41:08,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:41:08,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:41:08,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:41:08,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:41:08,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:41:08,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:41:08,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:41:08,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:41:08,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:41:08,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:41:08,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:41:08,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:41:08,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:41:08,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:41:08,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:41:08,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:41:08,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:41:08,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:41:08,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:41:08,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:41:08,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:41:08,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:41:08,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:41:08,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:41:08,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:41:08,222 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 14:41:08,255 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:41:08,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:41:08,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:41:08,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:41:08,261 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:41:08,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:41:08,261 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:41:08,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:41:08,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:41:08,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:41:08,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:41:08,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:41:08,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:41:08,263 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:41:08,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:41:08,263 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:41:08,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:41:08,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:41:08,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:41:08,266 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:41:08,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:41:08,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:41:08,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:41:08,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:41:08,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:41:08,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:41:08,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:41:08,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:41:08,268 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 14:41:08,558 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:41:08,571 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:41:08,575 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:41:08,577 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:41:08,578 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:41:08,578 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product15.cil.c [2019-10-07 14:41:08,642 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/895b4e68a/9d8ebc4592534d8e9b833fef8e6de6f9/FLAGacd92f761 [2019-10-07 14:41:09,301 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:41:09,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product15.cil.c [2019-10-07 14:41:09,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/895b4e68a/9d8ebc4592534d8e9b833fef8e6de6f9/FLAGacd92f761 [2019-10-07 14:41:09,512 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/895b4e68a/9d8ebc4592534d8e9b833fef8e6de6f9 [2019-10-07 14:41:09,522 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:41:09,523 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:41:09,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:41:09,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:41:09,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:41:09,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:41:09" (1/1) ... [2019-10-07 14:41:09,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea49d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:09, skipping insertion in model container [2019-10-07 14:41:09,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:41:09" (1/1) ... [2019-10-07 14:41:09,541 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:41:09,619 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:41:10,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:41:10,435 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:41:10,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:41:10,637 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:41:10,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10 WrapperNode [2019-10-07 14:41:10,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:41:10,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:41:10,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:41:10,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:41:10,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (1/1) ... [2019-10-07 14:41:10,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (1/1) ... [2019-10-07 14:41:10,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (1/1) ... [2019-10-07 14:41:10,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (1/1) ... [2019-10-07 14:41:10,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (1/1) ... [2019-10-07 14:41:10,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (1/1) ... [2019-10-07 14:41:10,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (1/1) ... [2019-10-07 14:41:10,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:41:10,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:41:10,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:41:10,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:41:10,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:41:10,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:41:10,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:41:10,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:41:10,868 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:41:10,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:41:10,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:41:10,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:41:10,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:41:10,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:41:10,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:41:10,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:41:10,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:41:10,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:41:10,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:41:10,871 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:41:10,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:41:10,871 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:41:10,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:41:10,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:41:10,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:41:10,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:41:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:41:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:41:10,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:41:10,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-07 14:41:10,875 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:41:10,875 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:41:10,876 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:41:10,876 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:41:10,877 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 14:41:10,877 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-07 14:41:10,877 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:41:10,877 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:41:10,877 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:41:10,878 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:41:10,878 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:41:10,878 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:41:10,878 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:41:10,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:41:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:41:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:41:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:41:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:41:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:41:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:41:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:41:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:41:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:41:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:41:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:41:10,880 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:41:10,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:41:10,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:41:10,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:41:10,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:41:10,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:41:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:41:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:41:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:41:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:41:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:41:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:41:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:41:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:41:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:41:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:41:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:41:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:41:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:41:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:41:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:41:10,884 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:41:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:41:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:41:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:41:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:41:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:41:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:41:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:41:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:41:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:41:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:41:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:41:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:41:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:41:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:41:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:41:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:41:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:41:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:41:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:41:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:41:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:41:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:41:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:41:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:41:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:41:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:41:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:41:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:41:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:41:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:41:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:41:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:41:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:41:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:41:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:41:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:41:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:41:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:41:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:41:10,891 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:41:10,892 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:41:10,892 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:41:10,892 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:41:10,892 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:41:10,892 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:41:10,892 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:41:10,892 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:41:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:41:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:41:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:41:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:41:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:41:10,893 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:41:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:41:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:41:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:41:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:41:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:41:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:41:10,894 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:41:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:41:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:41:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:41:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-07 14:41:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:41:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:41:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:41:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:41:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:41:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:41:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:41:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:41:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:41:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:41:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:41:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:41:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:41:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:41:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:41:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:41:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:41:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:41:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:41:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:41:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:41:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:41:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:41:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 14:41:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-07 14:41:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:41:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:41:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:41:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:41:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:41:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:41:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:41:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:41:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:41:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:41:10,901 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:41:10,901 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:41:10,901 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:41:10,901 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:41:10,901 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:41:10,901 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:41:10,901 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:41:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:41:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:41:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:41:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:41:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:41:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:41:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:41:10,903 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:41:10,903 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:41:10,903 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:41:10,903 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:41:10,903 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:41:10,903 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:41:10,903 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:41:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:41:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:41:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:41:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:41:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:41:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:41:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:41:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:41:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:41:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:41:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:41:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:41:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:41:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:41:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:41:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:41:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:41:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:41:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:41:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:41:10,906 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:41:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:41:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:41:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:41:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:41:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:41:10,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:41:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:41:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:41:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:41:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:41:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:41:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:41:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:41:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:41:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:41:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:41:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:41:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:41:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:41:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:41:15,395 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:41:15,396 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:41:15,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:41:15 BoogieIcfgContainer [2019-10-07 14:41:15,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:41:15,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:41:15,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:41:15,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:41:15,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:41:09" (1/3) ... [2019-10-07 14:41:15,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5700ef4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:41:15, skipping insertion in model container [2019-10-07 14:41:15,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:10" (2/3) ... [2019-10-07 14:41:15,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5700ef4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:41:15, skipping insertion in model container [2019-10-07 14:41:15,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:41:15" (3/3) ... [2019-10-07 14:41:15,407 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product15.cil.c [2019-10-07 14:41:15,417 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:41:15,427 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:41:15,439 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:41:15,469 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:41:15,469 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:41:15,470 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:41:15,470 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:41:15,470 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:41:15,470 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:41:15,470 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:41:15,470 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:41:15,501 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2019-10-07 14:41:15,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-07 14:41:15,520 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:15,522 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:15,524 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:15,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:15,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1337867109, now seen corresponding path program 1 times [2019-10-07 14:41:15,541 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:15,541 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:15,542 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:15,542 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:15,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:16,302 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:41:16,303 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:16,311 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:16,311 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:41:16,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:41:16,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:41:16,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:41:16,338 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 2 states. [2019-10-07 14:41:16,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:16,442 INFO L93 Difference]: Finished difference Result 462 states and 544 transitions. [2019-10-07 14:41:16,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:41:16,445 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 146 [2019-10-07 14:41:16,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:16,479 INFO L225 Difference]: With dead ends: 462 [2019-10-07 14:41:16,479 INFO L226 Difference]: Without dead ends: 306 [2019-10-07 14:41:16,486 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 14:41:16,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2019-10-07 14:41:16,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2019-10-07 14:41:16,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-10-07 14:41:16,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 359 transitions. [2019-10-07 14:41:16,603 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 359 transitions. Word has length 146 [2019-10-07 14:41:16,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:16,606 INFO L462 AbstractCegarLoop]: Abstraction has 306 states and 359 transitions. [2019-10-07 14:41:16,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:41:16,606 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 359 transitions. [2019-10-07 14:41:16,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-07 14:41:16,612 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:16,612 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:16,612 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:16,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:16,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1569944248, now seen corresponding path program 1 times [2019-10-07 14:41:16,613 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:16,613 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:16,614 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:16,614 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:16,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:16,891 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:41:16,892 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:16,892 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:16,892 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:41:16,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:41:16,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:41:16,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:41:16,901 INFO L87 Difference]: Start difference. First operand 306 states and 359 transitions. Second operand 3 states. [2019-10-07 14:41:16,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:16,969 INFO L93 Difference]: Finished difference Result 447 states and 513 transitions. [2019-10-07 14:41:16,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:41:16,970 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-10-07 14:41:16,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:16,981 INFO L225 Difference]: With dead ends: 447 [2019-10-07 14:41:16,981 INFO L226 Difference]: Without dead ends: 308 [2019-10-07 14:41:16,985 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 14:41:16,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2019-10-07 14:41:17,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2019-10-07 14:41:17,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2019-10-07 14:41:17,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 361 transitions. [2019-10-07 14:41:17,035 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 361 transitions. Word has length 147 [2019-10-07 14:41:17,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:17,037 INFO L462 AbstractCegarLoop]: Abstraction has 308 states and 361 transitions. [2019-10-07 14:41:17,037 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:41:17,037 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 361 transitions. [2019-10-07 14:41:17,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-07 14:41:17,044 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:17,045 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:17,045 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:17,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:17,046 INFO L82 PathProgramCache]: Analyzing trace with hash 239298933, now seen corresponding path program 1 times [2019-10-07 14:41:17,046 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:17,047 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:17,047 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:17,047 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:17,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:17,454 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:41:17,454 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:17,455 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:17,455 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:41:17,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:41:17,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:41:17,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:41:17,457 INFO L87 Difference]: Start difference. First operand 308 states and 361 transitions. Second operand 3 states. [2019-10-07 14:41:17,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:17,503 INFO L93 Difference]: Finished difference Result 598 states and 729 transitions. [2019-10-07 14:41:17,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:41:17,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-10-07 14:41:17,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:17,507 INFO L225 Difference]: With dead ends: 598 [2019-10-07 14:41:17,507 INFO L226 Difference]: Without dead ends: 348 [2019-10-07 14:41:17,509 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 14:41:17,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-10-07 14:41:17,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 347. [2019-10-07 14:41:17,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-10-07 14:41:17,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 429 transitions. [2019-10-07 14:41:17,525 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 429 transitions. Word has length 156 [2019-10-07 14:41:17,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:17,526 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 429 transitions. [2019-10-07 14:41:17,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:41:17,526 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 429 transitions. [2019-10-07 14:41:17,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-07 14:41:17,529 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:17,530 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:17,530 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:17,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:17,531 INFO L82 PathProgramCache]: Analyzing trace with hash 462235384, now seen corresponding path program 1 times [2019-10-07 14:41:17,531 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:17,531 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:17,531 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:17,531 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:17,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:17,684 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:41:17,684 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:17,685 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:17,685 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:41:17,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:41:17,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:41:17,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:41:17,686 INFO L87 Difference]: Start difference. First operand 347 states and 429 transitions. Second operand 3 states. [2019-10-07 14:41:17,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:17,714 INFO L93 Difference]: Finished difference Result 712 states and 928 transitions. [2019-10-07 14:41:17,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:41:17,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-10-07 14:41:17,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:17,718 INFO L225 Difference]: With dead ends: 712 [2019-10-07 14:41:17,719 INFO L226 Difference]: Without dead ends: 423 [2019-10-07 14:41:17,720 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 14:41:17,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-10-07 14:41:17,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 422. [2019-10-07 14:41:17,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2019-10-07 14:41:17,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 559 transitions. [2019-10-07 14:41:17,740 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 559 transitions. Word has length 157 [2019-10-07 14:41:17,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:17,740 INFO L462 AbstractCegarLoop]: Abstraction has 422 states and 559 transitions. [2019-10-07 14:41:17,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:41:17,741 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 559 transitions. [2019-10-07 14:41:17,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-07 14:41:17,744 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:17,745 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:17,745 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:17,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:17,745 INFO L82 PathProgramCache]: Analyzing trace with hash 758529619, now seen corresponding path program 1 times [2019-10-07 14:41:17,746 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:17,746 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:17,746 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:17,746 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:17,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:18,645 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:41:18,645 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:18,645 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:18,646 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-07 14:41:18,646 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-07 14:41:18,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-07 14:41:18,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2019-10-07 14:41:18,647 INFO L87 Difference]: Start difference. First operand 422 states and 559 transitions. Second operand 26 states. [2019-10-07 14:41:24,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:24,891 INFO L93 Difference]: Finished difference Result 742 states and 935 transitions. [2019-10-07 14:41:24,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-07 14:41:24,894 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 160 [2019-10-07 14:41:24,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:24,901 INFO L225 Difference]: With dead ends: 742 [2019-10-07 14:41:24,901 INFO L226 Difference]: Without dead ends: 596 [2019-10-07 14:41:24,903 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=1647, Unknown=0, NotChecked=0, Total=1806 [2019-10-07 14:41:24,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-10-07 14:41:24,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 584. [2019-10-07 14:41:24,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-10-07 14:41:24,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 749 transitions. [2019-10-07 14:41:24,938 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 749 transitions. Word has length 160 [2019-10-07 14:41:24,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:24,939 INFO L462 AbstractCegarLoop]: Abstraction has 584 states and 749 transitions. [2019-10-07 14:41:24,939 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-07 14:41:24,940 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 749 transitions. [2019-10-07 14:41:24,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-07 14:41:24,943 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:24,944 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:24,944 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:24,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:24,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1039996662, now seen corresponding path program 1 times [2019-10-07 14:41:24,945 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:24,945 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:24,945 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:24,945 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:24,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:25,144 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:41:25,144 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:25,145 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:25,145 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:41:25,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:41:25,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:41:25,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:41:25,146 INFO L87 Difference]: Start difference. First operand 584 states and 749 transitions. Second operand 10 states. [2019-10-07 14:41:25,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:25,203 INFO L93 Difference]: Finished difference Result 593 states and 758 transitions. [2019-10-07 14:41:25,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:41:25,206 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2019-10-07 14:41:25,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:25,210 INFO L225 Difference]: With dead ends: 593 [2019-10-07 14:41:25,210 INFO L226 Difference]: Without dead ends: 588 [2019-10-07 14:41:25,211 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:41:25,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2019-10-07 14:41:25,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 588. [2019-10-07 14:41:25,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 588 states. [2019-10-07 14:41:25,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 751 transitions. [2019-10-07 14:41:25,242 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 751 transitions. Word has length 164 [2019-10-07 14:41:25,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:25,243 INFO L462 AbstractCegarLoop]: Abstraction has 588 states and 751 transitions. [2019-10-07 14:41:25,243 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:41:25,243 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 751 transitions. [2019-10-07 14:41:25,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-07 14:41:25,247 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:25,247 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:25,248 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:25,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:25,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1434930001, now seen corresponding path program 1 times [2019-10-07 14:41:25,248 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:25,248 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:25,249 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:25,249 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:25,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:25,599 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:41:25,599 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:25,600 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:25,600 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 14:41:25,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 14:41:25,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 14:41:25,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:41:25,603 INFO L87 Difference]: Start difference. First operand 588 states and 751 transitions. Second operand 12 states. [2019-10-07 14:41:28,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:28,004 INFO L93 Difference]: Finished difference Result 1158 states and 1437 transitions. [2019-10-07 14:41:28,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 14:41:28,006 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 166 [2019-10-07 14:41:28,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:28,013 INFO L225 Difference]: With dead ends: 1158 [2019-10-07 14:41:28,013 INFO L226 Difference]: Without dead ends: 1020 [2019-10-07 14:41:28,015 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-10-07 14:41:28,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2019-10-07 14:41:28,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 970. [2019-10-07 14:41:28,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2019-10-07 14:41:28,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1215 transitions. [2019-10-07 14:41:28,080 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1215 transitions. Word has length 166 [2019-10-07 14:41:28,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:28,084 INFO L462 AbstractCegarLoop]: Abstraction has 970 states and 1215 transitions. [2019-10-07 14:41:28,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 14:41:28,084 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1215 transitions. [2019-10-07 14:41:28,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-07 14:41:28,090 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:28,090 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:41:28,090 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:28,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:28,091 INFO L82 PathProgramCache]: Analyzing trace with hash -108051550, now seen corresponding path program 1 times [2019-10-07 14:41:28,091 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:28,091 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:28,091 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:28,091 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:28,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:28,467 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 14:41:28,467 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:28,467 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:41:28,468 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 14:41:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:29,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 2573 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:41:29,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:41:29,199 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:41:29,200 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:41:29,410 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:41:29,410 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:41:29,443 INFO L162 IcfgInterpreter]: Started Sifa with 165 locations of interest [2019-10-07 14:41:29,443 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:41:29,453 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:41:29,462 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:41:29,463 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:41:58,100 WARN L191 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 641 [2019-10-07 14:42:01,273 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 266 DAG size of output: 217 [2019-10-07 14:42:01,610 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 14:42:01,943 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 14:42:02,253 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 14:42:02,479 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:42:03,139 WARN L191 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 960 [2019-10-07 14:42:03,757 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 960 [2019-10-07 14:42:04,325 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 960 [2019-10-07 14:42:04,512 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:42:05,068 WARN L191 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 960 [2019-10-07 14:42:06,263 WARN L191 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 962 DAG size of output: 960 [2019-10-07 14:42:06,827 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 960 [2019-10-07 14:42:06,961 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:42:07,534 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 960 [2019-10-07 14:42:08,129 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 960 [2019-10-07 14:42:08,688 WARN L191 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 960 [2019-10-07 14:42:08,881 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:42:09,461 WARN L191 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 960 [2019-10-07 14:42:09,487 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 535 for LOIs [2019-10-07 14:42:09,845 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 611 [2019-10-07 14:42:09,993 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 611 [2019-10-07 14:42:10,139 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:42:10,647 WARN L191 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 899 [2019-10-07 14:42:10,649 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 994 for LOIs [2019-10-07 14:42:11,189 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:11,737 WARN L191 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:11,961 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:42:12,732 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:13,325 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:13,865 WARN L191 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:14,056 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:42:14,832 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:15,421 WARN L191 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:15,993 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:16,203 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:42:16,972 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:17,987 WARN L191 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 1114 DAG size of output: 994 [2019-10-07 14:42:18,521 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:19,063 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 549 [2019-10-07 14:42:19,824 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:20,369 WARN L191 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:20,904 WARN L191 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:21,086 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:42:21,853 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:22,408 WARN L191 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:22,944 WARN L191 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:23,126 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:42:23,875 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:24,400 WARN L191 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:24,932 WARN L191 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:25,127 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:42:25,888 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:26,421 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:26,946 WARN L191 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:27,132 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:42:27,873 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:28,407 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:28,941 WARN L191 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:29,134 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:42:29,882 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:30,411 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:30,941 WARN L191 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:31,125 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:42:31,876 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:32,416 WARN L191 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:32,940 WARN L191 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:33,122 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:42:33,875 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:34,401 WARN L191 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:34,935 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:35,121 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:42:35,871 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:36,414 WARN L191 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:36,940 WARN L191 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 994 [2019-10-07 14:42:37,127 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:42:37,890 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:38,706 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:39,463 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:39,664 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:42:40,413 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:41,821 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1114 DAG size of output: 1112 [2019-10-07 14:42:42,572 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:42,761 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:42:43,508 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:44,253 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:45,004 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:45,186 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:42:45,934 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:42:46,752 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:42:47,505 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:42:47,695 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:42:48,451 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:42:49,825 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1118 DAG size of output: 1116 [2019-10-07 14:42:50,582 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:42:50,784 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:42:51,552 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:42:52,917 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1118 DAG size of output: 1116 [2019-10-07 14:42:53,684 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:42:53,868 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:42:54,632 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:42:55,387 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:42:56,162 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:42:56,348 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:42:57,111 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:42:57,881 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:42:58,647 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:42:58,839 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:42:59,606 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1118 [2019-10-07 14:43:01,249 WARN L191 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 1114 DAG size of output: 1112 [2019-10-07 14:43:02,008 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:43:02,202 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:43:02,978 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:43:04,336 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1114 DAG size of output: 1112 [2019-10-07 14:43:05,092 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:43:05,284 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:43:06,047 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:43:06,801 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:43:07,562 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:43:07,745 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:43:08,516 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:43:10,176 WARN L191 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 1114 DAG size of output: 1112 [2019-10-07 14:43:10,937 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:43:11,128 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:43:11,871 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:43:13,623 WARN L191 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 1114 DAG size of output: 1112 [2019-10-07 14:43:14,387 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:43:14,580 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:43:15,344 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:43:16,099 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:43:16,855 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:43:17,036 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 549 [2019-10-07 14:43:17,792 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:43:19,160 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1118 DAG size of output: 1116 [2019-10-07 14:43:19,920 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:43:20,112 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:43:20,869 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:43:22,234 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1118 DAG size of output: 1116 [2019-10-07 14:43:23,000 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:43:23,190 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:43:23,964 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:43:25,329 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1118 DAG size of output: 1116 [2019-10-07 14:43:26,098 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:43:26,286 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:43:27,051 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:43:28,412 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1123 DAG size of output: 1116 [2019-10-07 14:43:29,178 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:43:29,371 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:43:30,146 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:43:31,428 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1125 DAG size of output: 1118 [2019-10-07 14:43:32,232 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1118 [2019-10-07 14:43:32,423 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 14:43:33,190 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1118 [2019-10-07 14:43:33,456 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:43:33,458 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 14:43:33,468 INFO L168 Benchmark]: Toolchain (without parser) took 143941.87 ms. Allocated memory was 138.9 MB in the beginning and 777.5 MB in the end (delta: 638.6 MB). Free memory was 101.2 MB in the beginning and 323.5 MB in the end (delta: -222.3 MB). Peak memory consumption was 416.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:43:33,469 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 121.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 14:43:33,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1113.70 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 139.0 MB in the end (delta: -38.0 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:43:33,471 INFO L168 Benchmark]: Boogie Preprocessor took 162.60 ms. Allocated memory is still 203.4 MB. Free memory was 139.0 MB in the beginning and 129.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:43:33,474 INFO L168 Benchmark]: RCFGBuilder took 4596.19 ms. Allocated memory was 203.4 MB in the beginning and 293.6 MB in the end (delta: 90.2 MB). Free memory was 129.9 MB in the beginning and 97.9 MB in the end (delta: 32.0 MB). Peak memory consumption was 122.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:43:33,475 INFO L168 Benchmark]: TraceAbstraction took 138064.72 ms. Allocated memory was 293.6 MB in the beginning and 777.5 MB in the end (delta: 483.9 MB). Free memory was 97.9 MB in the beginning and 323.5 MB in the end (delta: -225.6 MB). Peak memory consumption was 258.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:43:33,481 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 121.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1113.70 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 139.0 MB in the end (delta: -38.0 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 162.60 ms. Allocated memory is still 203.4 MB. Free memory was 139.0 MB in the beginning and 129.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4596.19 ms. Allocated memory was 203.4 MB in the beginning and 293.6 MB in the end (delta: 90.2 MB). Free memory was 129.9 MB in the beginning and 97.9 MB in the end (delta: 32.0 MB). Peak memory consumption was 122.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 138064.72 ms. Allocated memory was 293.6 MB in the beginning and 777.5 MB in the end (delta: 483.9 MB). Free memory was 97.9 MB in the beginning and 323.5 MB in the end (delta: -225.6 MB). Peak memory consumption was 258.3 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...