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_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:41:19,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:41:19,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:41:19,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:41:19,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:41:19,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:41:19,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:41:19,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:41:19,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:41:19,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:41:19,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:41:19,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:41:19,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:41:19,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:41:19,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:41:19,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:41:19,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:41:19,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:41:19,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:41:19,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:41:19,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:41:19,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:41:19,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:41:19,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:41:19,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:41:19,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:41:19,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:41:19,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:41:19,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:41:19,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:41:19,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:41:19,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:41:19,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:41:19,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:41:19,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:41:19,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:41:19,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:41:19,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:41:19,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:41:19,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:41:19,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:41:19,720 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 14:41:19,737 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:41:19,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:41:19,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:41:19,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:41:19,739 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:41:19,740 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:41:19,740 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:41:19,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:41:19,740 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:41:19,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:41:19,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:41:19,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:41:19,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:41:19,741 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:41:19,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:41:19,742 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:41:19,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:41:19,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:41:19,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:41:19,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:41:19,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:41:19,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:41:19,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:41:19,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:41:19,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:41:19,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:41:19,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:41:19,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:41:19,744 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 14:41:20,058 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:41:20,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:41:20,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:41:20,077 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:41:20,077 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:41:20,078 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product22.cil.c [2019-10-07 14:41:20,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b227f45dd/ba8be217f5fd4461ac5f584cff1e1fab/FLAG76ac3af34 [2019-10-07 14:41:20,826 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:41:20,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product22.cil.c [2019-10-07 14:41:20,860 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b227f45dd/ba8be217f5fd4461ac5f584cff1e1fab/FLAG76ac3af34 [2019-10-07 14:41:20,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b227f45dd/ba8be217f5fd4461ac5f584cff1e1fab [2019-10-07 14:41:20,990 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:41:20,992 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:41:20,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:41:20,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:41:20,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:41:20,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:41:20" (1/1) ... [2019-10-07 14:41:21,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3143413b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:20, skipping insertion in model container [2019-10-07 14:41:21,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:41:20" (1/1) ... [2019-10-07 14:41:21,008 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:41:21,075 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:41:21,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:41:21,863 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:41:21,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:41:22,085 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:41:22,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:22 WrapperNode [2019-10-07 14:41:22,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:41:22,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:41:22,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:41:22,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:41:22,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:22" (1/1) ... [2019-10-07 14:41:22,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:22" (1/1) ... [2019-10-07 14:41:22,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:22" (1/1) ... [2019-10-07 14:41:22,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:22" (1/1) ... [2019-10-07 14:41:22,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:22" (1/1) ... [2019-10-07 14:41:22,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:22" (1/1) ... [2019-10-07 14:41:22,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:22" (1/1) ... [2019-10-07 14:41:22,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:41:22,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:41:22,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:41:22,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:41:22,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:22" (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 14:41:22,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:41:22,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:41:22,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:41:22,343 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:41:22,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-07 14:41:22,344 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:41:22,344 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:41:22,344 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:41:22,344 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:41:22,345 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:41:22,345 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:41:22,345 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:41:22,345 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:41:22,348 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:41:22,349 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:41:22,349 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 14:41:22,351 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-07 14:41:22,352 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:41:22,352 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:41:22,352 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:41:22,352 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:41:22,353 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:41:22,353 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:41:22,353 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:41:22,353 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:41:22,353 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:41:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:41:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:41:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:41:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:41:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:41:22,355 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:41:22,355 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:41:22,355 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:41:22,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:41:22,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:41:22,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:41:22,356 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:41:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:41:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:41:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:41:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:41:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:41:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:41:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:41:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:41:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:41:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:41:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:41:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:41:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:41:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:41:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:41:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:41:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:41:22,360 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:41:22,360 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:41:22,360 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:41:22,360 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:41:22,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:41:22,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:41:22,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:41:22,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:41:22,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:41:22,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:41:22,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:41:22,362 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:41:22,362 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:41:22,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:41:22,363 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:41:22,363 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:41:22,363 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:41:22,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:41:22,364 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:41:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:41:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:41:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:41:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:41:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:41:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:41:22,366 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:41:22,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:41:22,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:41:22,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:41:22,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:41:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:41:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:41:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:41:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:41:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:41:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:41:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:41:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:41:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:41:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:41:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:41:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:41:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:41:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:41:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:41:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:41:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:41:22,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:41:22,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:41:22,370 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:41:22,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:41:22,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:41:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:41:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:41:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:41:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:41:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:41:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:41:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:41:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:41:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:41:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:41:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:41:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:41:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:41:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-07 14:41:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:41:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:41:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:41:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:41:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:41:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:41:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:41:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:41:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:41:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:41:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:41:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:41:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:41:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:41:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:41:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:41:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:41:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:41:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:41:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:41:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:41:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:41:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:41:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:41:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:41:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:41:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:41:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:41:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:41:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:41:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:41:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:41:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:41:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:41:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:41:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:41:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 14:41:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-07 14:41:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:41:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:41:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:41:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:41:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:41:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:41:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:41:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:41:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:41:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:41:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:41:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:41:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:41:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:41:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:41:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:41:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:41:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:41:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:41:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:41:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:41:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:41:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:41:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:41:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:41:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:41:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:41:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:41:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:41:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:41:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:41:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:41:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:41:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:41:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:41:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:41:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:41:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:41:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:41:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:41:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:41:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:41:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:41:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:41:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:41:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:41:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:41:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:41:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:41:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:41:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:41:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:41:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:41:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:41:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:41:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:41:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:41:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:41:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:41:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:41:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:41:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:41:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:41:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:41:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:41:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:41:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:41:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:41:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:41:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:41:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:41:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:41:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:41:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:41:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:41:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:41:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:41:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:41:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:41:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:41:26,580 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:41:26,580 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:41:26,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:41:26 BoogieIcfgContainer [2019-10-07 14:41:26,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:41:26,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:41:26,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:41:26,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:41:26,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:41:20" (1/3) ... [2019-10-07 14:41:26,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4819c9d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:41:26, skipping insertion in model container [2019-10-07 14:41:26,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:41:22" (2/3) ... [2019-10-07 14:41:26,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4819c9d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:41:26, skipping insertion in model container [2019-10-07 14:41:26,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:41:26" (3/3) ... [2019-10-07 14:41:26,590 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product22.cil.c [2019-10-07 14:41:26,600 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:41:26,610 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:41:26,621 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:41:26,650 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:41:26,650 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:41:26,651 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:41:26,651 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:41:26,651 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:41:26,651 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:41:26,651 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:41:26,651 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:41:26,679 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states. [2019-10-07 14:41:26,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-07 14:41:26,696 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:26,698 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, 1] [2019-10-07 14:41:26,700 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:26,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:26,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1847534800, now seen corresponding path program 1 times [2019-10-07 14:41:26,714 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:26,715 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:26,715 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:26,715 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:26,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:27,379 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 14:41:27,380 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:27,380 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:27,380 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:41:27,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:41:27,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:41:27,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:41:27,404 INFO L87 Difference]: Start difference. First operand 369 states. Second operand 2 states. [2019-10-07 14:41:27,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:27,481 INFO L93 Difference]: Finished difference Result 539 states and 638 transitions. [2019-10-07 14:41:27,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:41:27,483 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 148 [2019-10-07 14:41:27,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:27,512 INFO L225 Difference]: With dead ends: 539 [2019-10-07 14:41:27,513 INFO L226 Difference]: Without dead ends: 348 [2019-10-07 14:41:27,525 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 14:41:27,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-10-07 14:41:27,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-10-07 14:41:27,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-10-07 14:41:27,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 409 transitions. [2019-10-07 14:41:27,633 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 409 transitions. Word has length 148 [2019-10-07 14:41:27,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:27,635 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 409 transitions. [2019-10-07 14:41:27,635 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:41:27,636 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 409 transitions. [2019-10-07 14:41:27,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-07 14:41:27,641 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:27,642 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, 1, 1] [2019-10-07 14:41:27,642 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:27,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:27,642 INFO L82 PathProgramCache]: Analyzing trace with hash -33911285, now seen corresponding path program 1 times [2019-10-07 14:41:27,643 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:27,643 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:27,643 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:27,643 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:27,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:27,832 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 14:41:27,832 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:27,833 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:27,833 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:41:27,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:41:27,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:41:27,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:41:27,836 INFO L87 Difference]: Start difference. First operand 348 states and 409 transitions. Second operand 3 states. [2019-10-07 14:41:27,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:27,891 INFO L93 Difference]: Finished difference Result 524 states and 606 transitions. [2019-10-07 14:41:27,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:41:27,892 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-07 14:41:27,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:27,902 INFO L225 Difference]: With dead ends: 524 [2019-10-07 14:41:27,903 INFO L226 Difference]: Without dead ends: 350 [2019-10-07 14:41:27,904 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 14:41:27,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-10-07 14:41:27,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-10-07 14:41:27,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-10-07 14:41:27,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 411 transitions. [2019-10-07 14:41:27,953 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 411 transitions. Word has length 149 [2019-10-07 14:41:27,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:27,955 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 411 transitions. [2019-10-07 14:41:27,955 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:41:27,955 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 411 transitions. [2019-10-07 14:41:27,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-07 14:41:27,959 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:27,959 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] [2019-10-07 14:41:27,960 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:27,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:27,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1710081894, now seen corresponding path program 1 times [2019-10-07 14:41:27,961 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:27,961 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:27,961 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:27,961 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:27,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:28,213 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 14:41:28,213 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:28,213 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:28,214 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:41:28,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:41:28,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:41:28,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:41:28,219 INFO L87 Difference]: Start difference. First operand 350 states and 411 transitions. Second operand 3 states. [2019-10-07 14:41:28,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:28,298 INFO L93 Difference]: Finished difference Result 684 states and 832 transitions. [2019-10-07 14:41:28,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:41:28,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-10-07 14:41:28,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:28,310 INFO L225 Difference]: With dead ends: 684 [2019-10-07 14:41:28,310 INFO L226 Difference]: Without dead ends: 392 [2019-10-07 14:41:28,312 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 14:41:28,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-10-07 14:41:28,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 391. [2019-10-07 14:41:28,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2019-10-07 14:41:28,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 482 transitions. [2019-10-07 14:41:28,356 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 482 transitions. Word has length 161 [2019-10-07 14:41:28,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:28,357 INFO L462 AbstractCegarLoop]: Abstraction has 391 states and 482 transitions. [2019-10-07 14:41:28,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:41:28,357 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 482 transitions. [2019-10-07 14:41:28,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-07 14:41:28,369 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:28,369 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] [2019-10-07 14:41:28,370 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:28,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:28,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1091482950, now seen corresponding path program 1 times [2019-10-07 14:41:28,371 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:28,371 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:28,371 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:28,372 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:28,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:29,395 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 14:41:29,395 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:29,395 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:29,396 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-07 14:41:29,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-07 14:41:29,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-07 14:41:29,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2019-10-07 14:41:29,397 INFO L87 Difference]: Start difference. First operand 391 states and 482 transitions. Second operand 28 states. [2019-10-07 14:41:37,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:37,569 INFO L93 Difference]: Finished difference Result 790 states and 960 transitions. [2019-10-07 14:41:37,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-07 14:41:37,570 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 162 [2019-10-07 14:41:37,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:37,575 INFO L225 Difference]: With dead ends: 790 [2019-10-07 14:41:37,576 INFO L226 Difference]: Without dead ends: 602 [2019-10-07 14:41:37,585 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=170, Invalid=1900, Unknown=0, NotChecked=0, Total=2070 [2019-10-07 14:41:37,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-10-07 14:41:37,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 590. [2019-10-07 14:41:37,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2019-10-07 14:41:37,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 718 transitions. [2019-10-07 14:41:37,643 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 718 transitions. Word has length 162 [2019-10-07 14:41:37,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:37,647 INFO L462 AbstractCegarLoop]: Abstraction has 590 states and 718 transitions. [2019-10-07 14:41:37,648 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-07 14:41:37,648 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 718 transitions. [2019-10-07 14:41:37,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-07 14:41:37,654 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:37,654 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 14:41:37,655 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:37,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:37,655 INFO L82 PathProgramCache]: Analyzing trace with hash -407038816, now seen corresponding path program 1 times [2019-10-07 14:41:37,655 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:37,656 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:37,656 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:37,656 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:37,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:37,894 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 14:41:37,895 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:37,895 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:37,896 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:41:37,897 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:41:37,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:41:37,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:41:37,898 INFO L87 Difference]: Start difference. First operand 590 states and 718 transitions. Second operand 10 states. [2019-10-07 14:41:37,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:37,977 INFO L93 Difference]: Finished difference Result 599 states and 728 transitions. [2019-10-07 14:41:37,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:41:37,978 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2019-10-07 14:41:37,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:37,985 INFO L225 Difference]: With dead ends: 599 [2019-10-07 14:41:37,986 INFO L226 Difference]: Without dead ends: 594 [2019-10-07 14:41:37,987 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 14:41:37,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2019-10-07 14:41:38,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2019-10-07 14:41:38,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2019-10-07 14:41:38,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 721 transitions. [2019-10-07 14:41:38,032 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 721 transitions. Word has length 166 [2019-10-07 14:41:38,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:38,035 INFO L462 AbstractCegarLoop]: Abstraction has 594 states and 721 transitions. [2019-10-07 14:41:38,035 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:41:38,035 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 721 transitions. [2019-10-07 14:41:38,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-07 14:41:38,041 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:38,041 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, 1, 1] [2019-10-07 14:41:38,041 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:38,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:38,042 INFO L82 PathProgramCache]: Analyzing trace with hash 199684382, now seen corresponding path program 1 times [2019-10-07 14:41:38,042 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:38,043 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:38,043 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:38,043 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:38,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:38,443 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 14:41:38,444 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:38,444 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:41:38,445 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 14:41:38,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 14:41:38,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 14:41:38,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:41:38,447 INFO L87 Difference]: Start difference. First operand 594 states and 721 transitions. Second operand 12 states. [2019-10-07 14:41:40,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:41:40,449 INFO L93 Difference]: Finished difference Result 1244 states and 1486 transitions. [2019-10-07 14:41:40,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 14:41:40,450 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 168 [2019-10-07 14:41:40,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:41:40,456 INFO L225 Difference]: With dead ends: 1244 [2019-10-07 14:41:40,457 INFO L226 Difference]: Without dead ends: 1071 [2019-10-07 14:41:40,458 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 14:41:40,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2019-10-07 14:41:40,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1026. [2019-10-07 14:41:40,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1026 states. [2019-10-07 14:41:40,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1230 transitions. [2019-10-07 14:41:40,535 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1230 transitions. Word has length 168 [2019-10-07 14:41:40,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:41:40,536 INFO L462 AbstractCegarLoop]: Abstraction has 1026 states and 1230 transitions. [2019-10-07 14:41:40,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 14:41:40,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1230 transitions. [2019-10-07 14:41:40,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-07 14:41:40,540 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:41:40,541 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, 1, 1] [2019-10-07 14:41:40,541 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:41:40,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:41:40,541 INFO L82 PathProgramCache]: Analyzing trace with hash -809615998, now seen corresponding path program 1 times [2019-10-07 14:41:40,542 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:41:40,542 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:40,542 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:40,542 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:41:40,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:41:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:40,937 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 14:41:40,937 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:41:40,937 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:41:40,937 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 14:41:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:41:41,531 INFO L256 TraceCheckSpWp]: Trace formula consists of 2639 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:41:41,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:41:41,676 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 14:41:41,677 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:41:41,924 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 14:41:41,924 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:41:41,964 INFO L162 IcfgInterpreter]: Started Sifa with 167 locations of interest [2019-10-07 14:41:41,964 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:41:41,973 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:41:41,982 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:41:41,982 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:42:20,211 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 652 [2019-10-07 14:42:23,896 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 286 DAG size of output: 233 [2019-10-07 14:42:24,244 WARN L191 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 688 [2019-10-07 14:42:24,572 WARN L191 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 688 [2019-10-07 14:42:24,884 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 688 [2019-10-07 14:42:25,224 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:42:26,138 WARN L191 SmtUtils]: Spent 912.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:42:26,803 WARN L191 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:42:27,423 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:42:27,551 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:42:28,166 WARN L191 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:42:29,309 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 980 DAG size of output: 978 [2019-10-07 14:42:29,923 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:42:30,061 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:42:30,607 WARN L191 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:42:31,169 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:42:31,708 WARN L191 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:42:31,836 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:42:32,408 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 978 [2019-10-07 14:42:32,435 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 541 for LOIs [2019-10-07 14:42:32,764 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:42:32,979 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:42:33,422 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 911 [2019-10-07 14:42:33,424 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1018 for LOIs [2019-10-07 14:42:33,956 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:34,535 WARN L191 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:34,726 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:42:35,493 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:42:36,069 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:36,610 WARN L191 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:36,821 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:42:37,640 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:42:38,219 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:38,774 WARN L191 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:38,972 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:42:39,739 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:42:40,781 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 1144 DAG size of output: 1018 [2019-10-07 14:42:41,316 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:41,525 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:42:42,285 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:42:42,833 WARN L191 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:43,386 WARN L191 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:43,587 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:42:44,353 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:42:44,883 WARN L191 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:45,426 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:45,610 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:42:46,375 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:42:46,927 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:47,461 WARN L191 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:47,664 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:42:48,429 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:42:48,962 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:49,496 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:49,682 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:42:50,462 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:42:51,001 WARN L191 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:51,534 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:51,718 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:42:52,483 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:42:53,023 WARN L191 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:53,557 WARN L191 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:53,767 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:42:54,540 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:42:55,074 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:55,607 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:55,791 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:42:56,565 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:42:57,101 WARN L191 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:57,651 WARN L191 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:57,859 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:42:58,643 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:42:59,180 WARN L191 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:59,714 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 1018 [2019-10-07 14:42:59,900 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:43:00,667 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:01,487 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:02,243 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:02,452 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:43:03,220 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:04,602 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1144 DAG size of output: 1142 [2019-10-07 14:43:05,362 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:05,561 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:43:06,323 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:07,092 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:07,858 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:08,051 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:43:08,811 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:09,615 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:43:10,376 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:43:10,569 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:43:11,344 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:12,770 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1148 DAG size of output: 1146 [2019-10-07 14:43:13,550 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:13,745 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:43:14,505 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:15,810 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1148 DAG size of output: 1144 [2019-10-07 14:43:16,571 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:43:16,756 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:43:17,523 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:18,321 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:43:19,095 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:43:19,283 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:43:20,043 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:20,806 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:21,570 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:21,759 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:43:22,527 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:43:24,218 WARN L191 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 1144 DAG size of output: 1142 [2019-10-07 14:43:24,987 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:25,181 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:43:25,942 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:27,400 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1144 DAG size of output: 1142 [2019-10-07 14:43:28,162 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:28,362 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:43:29,135 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:29,896 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:30,649 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:30,836 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:43:31,606 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:32,993 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1144 DAG size of output: 1142 [2019-10-07 14:43:33,751 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:33,944 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:43:34,707 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:36,081 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1144 DAG size of output: 1142 [2019-10-07 14:43:36,849 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:37,040 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:43:37,805 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:38,568 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:39,334 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:39,520 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:43:40,283 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1142 [2019-10-07 14:43:41,079 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:41,851 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:42,043 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:43:42,809 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:43,585 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:44,360 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:44,556 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:43:45,316 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:46,082 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:46,853 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:47,038 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:43:47,792 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:49,172 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1148 DAG size of output: 1144 [2019-10-07 14:43:49,935 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:43:50,151 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:43:50,911 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:52,270 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1150 DAG size of output: 1146 [2019-10-07 14:43:53,035 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:43:53,228 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 14:43:54,003 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1148 [2019-10-07 14:43:54,265 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:43:54,266 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 14:43:54,272 INFO L168 Benchmark]: Toolchain (without parser) took 153281.02 ms. Allocated memory was 136.8 MB in the beginning and 695.7 MB in the end (delta: 558.9 MB). Free memory was 99.6 MB in the beginning and 440.5 MB in the end (delta: -340.9 MB). Peak memory consumption was 218.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:43:54,273 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 136.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:43:54,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1093.71 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 99.4 MB in the beginning and 137.5 MB in the end (delta: -38.1 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:43:54,274 INFO L168 Benchmark]: Boogie Preprocessor took 184.30 ms. Allocated memory is still 201.9 MB. Free memory was 137.5 MB in the beginning and 128.8 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:43:54,275 INFO L168 Benchmark]: RCFGBuilder took 4303.96 ms. Allocated memory was 201.9 MB in the beginning and 306.7 MB in the end (delta: 104.9 MB). Free memory was 128.8 MB in the beginning and 134.6 MB in the end (delta: -5.8 MB). Peak memory consumption was 104.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:43:54,276 INFO L168 Benchmark]: TraceAbstraction took 147687.79 ms. Allocated memory was 306.7 MB in the beginning and 695.7 MB in the end (delta: 389.0 MB). Free memory was 131.3 MB in the beginning and 440.5 MB in the end (delta: -309.3 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:43:54,279 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 136.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1093.71 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 99.4 MB in the beginning and 137.5 MB in the end (delta: -38.1 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 184.30 ms. Allocated memory is still 201.9 MB. Free memory was 137.5 MB in the beginning and 128.8 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4303.96 ms. Allocated memory was 201.9 MB in the beginning and 306.7 MB in the end (delta: 104.9 MB). Free memory was 128.8 MB in the beginning and 134.6 MB in the end (delta: -5.8 MB). Peak memory consumption was 104.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 147687.79 ms. Allocated memory was 306.7 MB in the beginning and 695.7 MB in the end (delta: 389.0 MB). Free memory was 131.3 MB in the beginning and 440.5 MB in the end (delta: -309.3 MB). Peak memory consumption was 79.8 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...