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_spec27_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:47:34,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:47:34,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:47:34,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:47:34,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:47:34,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:47:34,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:47:34,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:47:34,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:47:34,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:47:34,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:47:34,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:47:34,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:47:34,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:47:34,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:47:34,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:47:34,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:47:34,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:47:34,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:47:34,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:47:34,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:47:34,734 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:47:34,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:47:34,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:47:34,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:47:34,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:47:34,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:47:34,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:47:34,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:47:34,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:47:34,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:47:34,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:47:34,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:47:34,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:47:34,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:47:34,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:47:34,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:47:34,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:47:34,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:47:34,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:47:34,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:47:34,749 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 14:47:34,763 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:47:34,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:47:34,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:47:34,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:47:34,765 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:47:34,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:47:34,766 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:47:34,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:47:34,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:47:34,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:47:34,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:47:34,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:47:34,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:47:34,767 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:47:34,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:47:34,768 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:47:34,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:47:34,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:47:34,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:47:34,768 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:47:34,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:47:34,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:47:34,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:47:34,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:47:34,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:47:34,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:47:34,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:47:34,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:47:34,770 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 14:47:35,069 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:47:35,089 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:47:35,091 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:47:35,092 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:47:35,093 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:47:35,093 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product17.cil.c [2019-10-07 14:47:35,153 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61dcd5e57/34f214fa4dae4ba3a61e9a87830b6667/FLAGdb0b6a4fd [2019-10-07 14:47:35,796 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:47:35,797 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product17.cil.c [2019-10-07 14:47:35,818 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61dcd5e57/34f214fa4dae4ba3a61e9a87830b6667/FLAGdb0b6a4fd [2019-10-07 14:47:36,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61dcd5e57/34f214fa4dae4ba3a61e9a87830b6667 [2019-10-07 14:47:36,038 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:47:36,039 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:47:36,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:47:36,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:47:36,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:47:36,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:47:36" (1/1) ... [2019-10-07 14:47:36,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605515df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:36, skipping insertion in model container [2019-10-07 14:47:36,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:47:36" (1/1) ... [2019-10-07 14:47:36,056 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:47:36,140 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:47:36,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:47:36,928 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:47:37,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:47:37,114 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:47:37,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37 WrapperNode [2019-10-07 14:47:37,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:47:37,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:47:37,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:47:37,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:47:37,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (1/1) ... [2019-10-07 14:47:37,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (1/1) ... [2019-10-07 14:47:37,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (1/1) ... [2019-10-07 14:47:37,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (1/1) ... [2019-10-07 14:47:37,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (1/1) ... [2019-10-07 14:47:37,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (1/1) ... [2019-10-07 14:47:37,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (1/1) ... [2019-10-07 14:47:37,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:47:37,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:47:37,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:47:37,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:47:37,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (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 14:47:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:47:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:47:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:47:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:47:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:47:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 14:47:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:47:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:47:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:47:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:47:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:47:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:47:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:47:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:47:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:47:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:47:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:47:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:47:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 14:47:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:47:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:47:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:47:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:47:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:47:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:47:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:47:37,348 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:47:37,348 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:47:37,348 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:47:37,348 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:47:37,348 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:47:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:47:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:47:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:47:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:47:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:47:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:47:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:47:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:47:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:47:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 14:47:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:47:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:47:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:47:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:47:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:47:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:47:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:47:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:47:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:47:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:47:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:47:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:47:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:47:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:47:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:47:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:47:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:47:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:47:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:47:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:47:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:47:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:47:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:47:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:47:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:47:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:47:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:47:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:47:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:47:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:47:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:47:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:47:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:47:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:47:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:47:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:47:37,358 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:47:37,358 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:47:37,358 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:47:37,358 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:47:37,358 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:47:37,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:47:37,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:47:37,359 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 14:47:37,359 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 14:47:37,359 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:47:37,360 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:47:37,360 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:47:37,360 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:47:37,360 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:47:37,360 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:47:37,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:47:37,361 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:47:37,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:47:37,361 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:47:37,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:47:37,362 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:47:37,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:47:37,362 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:47:37,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:47:37,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:47:37,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:47:37,363 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:47:37,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:47:37,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:47:37,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:47:37,364 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:47:37,364 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:47:37,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:47:37,364 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:47:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:47:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:47:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:47:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:47:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:47:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:47:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:47:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:47:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:47:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:47:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:47:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:47:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:47:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:47:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:47:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:47:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:47:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:47:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:47:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:47:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:47:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:47:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:47:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:47:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:47:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:47:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:47:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:47:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:47:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:47:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:47:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:47:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:47:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:47:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 14:47:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:47:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:47:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:47:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:47:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 14:47:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:47:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:47:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:47:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:47:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:47:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:47:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:47:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:47:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:47:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:47:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:47:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:47:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:47:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:47:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:47:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:47:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:47:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:47:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:47:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:47:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:47:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:47:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:47:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:47:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:47:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:47:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:47:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:47:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:47:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:47:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:47:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 14:47:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:47:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:47:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:47:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:47:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:47:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:47:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:47:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:47:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:47:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:47:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:47:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:47:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:47:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:47:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:47:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:47:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:47:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:47:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:47:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:47:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:47:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:47:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:47:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:47:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:47:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:47:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:47:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:47:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:47:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:47:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:47:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:47:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:47:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:47:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:47:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:47:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:47:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:47:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:47:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 14:47:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 14:47:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:47:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:47:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:47:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:47:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:47:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:47:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:47:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:47:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:47:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:47:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:47:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:47:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:47:41,843 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:47:41,844 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:47:41,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:47:41 BoogieIcfgContainer [2019-10-07 14:47:41,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:47:41,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:47:41,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:47:41,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:47:41,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:47:36" (1/3) ... [2019-10-07 14:47:41,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5a332a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:47:41, skipping insertion in model container [2019-10-07 14:47:41,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (2/3) ... [2019-10-07 14:47:41,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5a332a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:47:41, skipping insertion in model container [2019-10-07 14:47:41,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:47:41" (3/3) ... [2019-10-07 14:47:41,854 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product17.cil.c [2019-10-07 14:47:41,866 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:47:41,876 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:47:41,888 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:47:41,924 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:47:41,925 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:47:41,925 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:47:41,925 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:47:41,925 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:47:41,925 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:47:41,925 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:47:41,925 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:47:41,947 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states. [2019-10-07 14:47:41,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-07 14:47:41,966 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:41,967 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:47:41,969 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:41,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:41,975 INFO L82 PathProgramCache]: Analyzing trace with hash -34515269, now seen corresponding path program 1 times [2019-10-07 14:47:41,985 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:41,985 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:41,986 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:41,986 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:41,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:42,726 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:47:42,727 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:42,728 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:47:42,728 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:47:42,734 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:47:42,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:47:42,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:47:42,752 INFO L87 Difference]: Start difference. First operand 371 states. Second operand 2 states. [2019-10-07 14:47:42,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:47:42,834 INFO L93 Difference]: Finished difference Result 503 states and 597 transitions. [2019-10-07 14:47:42,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:47:42,836 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 148 [2019-10-07 14:47:42,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:47:42,865 INFO L225 Difference]: With dead ends: 503 [2019-10-07 14:47:42,865 INFO L226 Difference]: Without dead ends: 330 [2019-10-07 14:47:42,874 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 14:47:42,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-10-07 14:47:43,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2019-10-07 14:47:43,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-10-07 14:47:43,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 388 transitions. [2019-10-07 14:47:43,018 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 388 transitions. Word has length 148 [2019-10-07 14:47:43,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:47:43,021 INFO L462 AbstractCegarLoop]: Abstraction has 330 states and 388 transitions. [2019-10-07 14:47:43,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:47:43,021 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 388 transitions. [2019-10-07 14:47:43,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-07 14:47:43,033 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:43,034 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:47:43,034 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:43,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:43,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1919200878, now seen corresponding path program 1 times [2019-10-07 14:47:43,036 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:43,036 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:43,036 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:43,037 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:43,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:43,342 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:47:43,343 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:43,343 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:47:43,343 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:47:43,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:47:43,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:47:43,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:47:43,353 INFO L87 Difference]: Start difference. First operand 330 states and 388 transitions. Second operand 3 states. [2019-10-07 14:47:43,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:47:43,396 INFO L93 Difference]: Finished difference Result 488 states and 563 transitions. [2019-10-07 14:47:43,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:47:43,397 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-07 14:47:43,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:47:43,400 INFO L225 Difference]: With dead ends: 488 [2019-10-07 14:47:43,400 INFO L226 Difference]: Without dead ends: 332 [2019-10-07 14:47:43,402 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 14:47:43,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2019-10-07 14:47:43,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2019-10-07 14:47:43,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2019-10-07 14:47:43,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 390 transitions. [2019-10-07 14:47:43,426 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 390 transitions. Word has length 149 [2019-10-07 14:47:43,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:47:43,427 INFO L462 AbstractCegarLoop]: Abstraction has 332 states and 390 transitions. [2019-10-07 14:47:43,427 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:47:43,427 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 390 transitions. [2019-10-07 14:47:43,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-07 14:47:43,431 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:43,431 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, 1, 1, 1, 1, 1] [2019-10-07 14:47:43,431 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:43,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:43,432 INFO L82 PathProgramCache]: Analyzing trace with hash 983640209, now seen corresponding path program 1 times [2019-10-07 14:47:43,432 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:43,432 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:43,432 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:43,433 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:43,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:43,587 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:47:43,588 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:43,589 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:47:43,590 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:47:43,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:47:43,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:47:43,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:47:43,592 INFO L87 Difference]: Start difference. First operand 332 states and 390 transitions. Second operand 3 states. [2019-10-07 14:47:43,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:47:43,650 INFO L93 Difference]: Finished difference Result 646 states and 787 transitions. [2019-10-07 14:47:43,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:47:43,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-10-07 14:47:43,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:47:43,654 INFO L225 Difference]: With dead ends: 646 [2019-10-07 14:47:43,654 INFO L226 Difference]: Without dead ends: 372 [2019-10-07 14:47:43,657 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 14:47:43,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2019-10-07 14:47:43,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2019-10-07 14:47:43,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2019-10-07 14:47:43,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 458 transitions. [2019-10-07 14:47:43,678 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 458 transitions. Word has length 154 [2019-10-07 14:47:43,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:47:43,679 INFO L462 AbstractCegarLoop]: Abstraction has 371 states and 458 transitions. [2019-10-07 14:47:43,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:47:43,679 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 458 transitions. [2019-10-07 14:47:43,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-07 14:47:43,682 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:43,683 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, 1, 1, 1, 1, 1, 1] [2019-10-07 14:47:43,683 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:43,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:43,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1408642955, now seen corresponding path program 1 times [2019-10-07 14:47:43,684 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:43,684 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:43,684 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:43,684 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:43,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:43,935 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 14:47:43,936 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:43,936 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:47:43,936 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:47:43,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:47:43,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:47:43,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:47:43,937 INFO L87 Difference]: Start difference. First operand 371 states and 458 transitions. Second operand 8 states. [2019-10-07 14:47:43,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:47:43,991 INFO L93 Difference]: Finished difference Result 515 states and 623 transitions. [2019-10-07 14:47:43,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:47:43,992 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2019-10-07 14:47:43,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:47:43,995 INFO L225 Difference]: With dead ends: 515 [2019-10-07 14:47:43,996 INFO L226 Difference]: Without dead ends: 371 [2019-10-07 14:47:43,997 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:47:43,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2019-10-07 14:47:44,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2019-10-07 14:47:44,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2019-10-07 14:47:44,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 457 transitions. [2019-10-07 14:47:44,015 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 457 transitions. Word has length 155 [2019-10-07 14:47:44,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:47:44,016 INFO L462 AbstractCegarLoop]: Abstraction has 371 states and 457 transitions. [2019-10-07 14:47:44,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:47:44,016 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 457 transitions. [2019-10-07 14:47:44,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-07 14:47:44,020 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:44,020 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:47:44,020 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:44,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:44,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1266320439, now seen corresponding path program 1 times [2019-10-07 14:47:44,021 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:44,021 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:44,021 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:44,021 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:44,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:44,816 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 14:47:44,817 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:44,817 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:47:44,817 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2019-10-07 14:47:44,818 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-10-07 14:47:44,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-10-07 14:47:44,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=633, Unknown=0, NotChecked=0, Total=702 [2019-10-07 14:47:44,820 INFO L87 Difference]: Start difference. First operand 371 states and 457 transitions. Second operand 27 states. [2019-10-07 14:47:54,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:47:54,351 INFO L93 Difference]: Finished difference Result 735 states and 893 transitions. [2019-10-07 14:47:54,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-07 14:47:54,351 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 160 [2019-10-07 14:47:54,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:47:54,361 INFO L225 Difference]: With dead ends: 735 [2019-10-07 14:47:54,361 INFO L226 Difference]: Without dead ends: 583 [2019-10-07 14:47:54,364 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=255, Invalid=2607, Unknown=0, NotChecked=0, Total=2862 [2019-10-07 14:47:54,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-10-07 14:47:54,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 574. [2019-10-07 14:47:54,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2019-10-07 14:47:54,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 701 transitions. [2019-10-07 14:47:54,406 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 701 transitions. Word has length 160 [2019-10-07 14:47:54,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:47:54,407 INFO L462 AbstractCegarLoop]: Abstraction has 574 states and 701 transitions. [2019-10-07 14:47:54,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-10-07 14:47:54,407 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 701 transitions. [2019-10-07 14:47:54,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-07 14:47:54,413 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:54,413 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] [2019-10-07 14:47:54,413 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:54,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:54,414 INFO L82 PathProgramCache]: Analyzing trace with hash -81914695, now seen corresponding path program 1 times [2019-10-07 14:47:54,414 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:54,415 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:54,415 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:54,415 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:54,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:55,099 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:47:55,100 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:55,100 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:47:55,100 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-07 14:47:55,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-07 14:47:55,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-07 14:47:55,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:47:55,102 INFO L87 Difference]: Start difference. First operand 574 states and 701 transitions. Second operand 23 states. [2019-10-07 14:48:04,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:48:04,234 INFO L93 Difference]: Finished difference Result 1204 states and 1427 transitions. [2019-10-07 14:48:04,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-07 14:48:04,234 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 181 [2019-10-07 14:48:04,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:48:04,242 INFO L225 Difference]: With dead ends: 1204 [2019-10-07 14:48:04,243 INFO L226 Difference]: Without dead ends: 865 [2019-10-07 14:48:04,246 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=233, Invalid=2023, Unknown=0, NotChecked=0, Total=2256 [2019-10-07 14:48:04,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2019-10-07 14:48:04,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 850. [2019-10-07 14:48:04,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2019-10-07 14:48:04,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1014 transitions. [2019-10-07 14:48:04,365 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1014 transitions. Word has length 181 [2019-10-07 14:48:04,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:48:04,368 INFO L462 AbstractCegarLoop]: Abstraction has 850 states and 1014 transitions. [2019-10-07 14:48:04,368 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-07 14:48:04,368 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1014 transitions. [2019-10-07 14:48:04,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-07 14:48:04,372 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:48:04,372 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, 1, 1, 1, 1, 1] [2019-10-07 14:48:04,373 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:48:04,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:48:04,373 INFO L82 PathProgramCache]: Analyzing trace with hash 805883352, now seen corresponding path program 1 times [2019-10-07 14:48:04,374 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:48:04,374 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:48:04,374 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:48:04,374 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:48:04,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:48:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:48:05,376 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 14:48:05,377 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:48:05,377 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:48:05,377 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 14:48:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:48:05,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 2669 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:48:05,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:48:06,125 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 14:48:06,126 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:48:06,448 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 14:48:06,448 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:48:06,489 INFO L162 IcfgInterpreter]: Started Sifa with 172 locations of interest [2019-10-07 14:48:06,489 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:48:06,502 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:48:06,511 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:48:06,512 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:48:51,320 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 664 [2019-10-07 14:48:55,124 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 294 DAG size of output: 239 [2019-10-07 14:48:55,591 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 703 [2019-10-07 14:48:55,923 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 703 [2019-10-07 14:48:56,249 WARN L191 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 703 [2019-10-07 14:48:56,461 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:48:57,143 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 995 [2019-10-07 14:48:57,793 WARN L191 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 995 [2019-10-07 14:48:58,431 WARN L191 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 995 [2019-10-07 14:48:58,575 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:48:59,138 WARN L191 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 995 [2019-10-07 14:49:00,383 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 997 DAG size of output: 995 [2019-10-07 14:49:00,957 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 995 [2019-10-07 14:49:01,094 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:49:01,690 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 995 [2019-10-07 14:49:02,252 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 995 [2019-10-07 14:49:02,850 WARN L191 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 995 [2019-10-07 14:49:03,057 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:49:03,712 WARN L191 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 995 [2019-10-07 14:49:03,739 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 547 for LOIs [2019-10-07 14:49:04,013 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 547 [2019-10-07 14:49:04,197 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 632 [2019-10-07 14:49:04,318 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 632 [2019-10-07 14:49:04,437 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:49:04,867 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 924 [2019-10-07 14:49:04,869 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1041 for LOIs [2019-10-07 14:49:05,453 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:06,000 WARN L191 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:06,227 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:49:07,119 WARN L191 SmtUtils]: Spent 889.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:07,731 WARN L191 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:08,286 WARN L191 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:08,530 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:49:09,424 WARN L191 SmtUtils]: Spent 892.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:10,010 WARN L191 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:10,569 WARN L191 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:10,821 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:49:11,698 WARN L191 SmtUtils]: Spent 875.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:12,638 WARN L191 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 1217 DAG size of output: 1041 [2019-10-07 14:49:13,190 WARN L191 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:13,895 WARN L191 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 608 DAG size of output: 606 [2019-10-07 14:49:14,790 WARN L191 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:15,351 WARN L191 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:15,905 WARN L191 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:16,121 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:49:17,017 WARN L191 SmtUtils]: Spent 894.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:17,588 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:18,135 WARN L191 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:18,360 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:49:19,238 WARN L191 SmtUtils]: Spent 875.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:19,791 WARN L191 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:20,355 WARN L191 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:20,574 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:49:21,445 WARN L191 SmtUtils]: Spent 869.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:21,996 WARN L191 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:22,537 WARN L191 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:22,752 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:49:23,618 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:24,175 WARN L191 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:24,713 WARN L191 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:24,931 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:49:25,799 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:26,336 WARN L191 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:26,883 WARN L191 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:27,102 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:49:27,989 WARN L191 SmtUtils]: Spent 885.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:28,537 WARN L191 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:29,080 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:29,296 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:49:30,171 WARN L191 SmtUtils]: Spent 873.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:30,725 WARN L191 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:31,265 WARN L191 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:31,488 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:49:32,357 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:32,901 WARN L191 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:33,443 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 1041 [2019-10-07 14:49:33,660 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:49:34,528 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:35,530 WARN L191 SmtUtils]: Spent 951.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:36,395 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:36,630 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:49:37,497 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:39,123 WARN L191 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 1217 DAG size of output: 1215 [2019-10-07 14:49:39,990 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:40,221 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:49:41,079 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:41,947 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:42,821 WARN L191 SmtUtils]: Spent 870.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:43,043 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:49:43,912 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:49:44,829 WARN L191 SmtUtils]: Spent 878.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:49:45,703 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:49:45,926 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 14:49:46,790 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:49:47,682 WARN L191 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:49:48,556 WARN L191 SmtUtils]: Spent 870.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:49:48,782 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 14:49:49,654 WARN L191 SmtUtils]: Spent 870.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:49:50,529 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:49:51,400 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:49:51,618 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 14:49:52,493 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:49:53,383 WARN L191 SmtUtils]: Spent 880.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:49:54,255 WARN L191 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:49:54,514 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 14:49:55,382 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:49:56,263 WARN L191 SmtUtils]: Spent 877.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:49:57,145 WARN L191 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:49:57,366 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 14:49:58,249 WARN L191 SmtUtils]: Spent 880.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:50:00,076 WARN L191 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 1217 DAG size of output: 1215 [2019-10-07 14:50:00,946 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:50:01,177 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:50:02,054 WARN L191 SmtUtils]: Spent 875.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:50:03,648 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 1217 DAG size of output: 1215 [2019-10-07 14:50:04,507 WARN L191 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:50:04,747 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:50:05,618 WARN L191 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:50:06,483 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:50:07,354 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:50:07,569 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:50:08,446 WARN L191 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:50:10,369 WARN L191 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 1217 DAG size of output: 1215 [2019-10-07 14:50:11,237 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:50:11,466 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:50:12,329 WARN L191 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:50:13,922 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 1217 DAG size of output: 1215 [2019-10-07 14:50:14,794 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:50:15,025 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:50:15,890 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:50:16,758 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:50:17,623 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:50:17,839 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 606 [2019-10-07 14:50:18,714 WARN L191 SmtUtils]: Spent 873.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:50:20,228 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1221 DAG size of output: 1217 [2019-10-07 14:50:21,095 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1217 [2019-10-07 14:50:21,324 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 14:50:22,195 WARN L191 SmtUtils]: Spent 869.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:50:23,085 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:50:23,966 WARN L191 SmtUtils]: Spent 878.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:50:24,191 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 14:50:25,079 WARN L191 SmtUtils]: Spent 887.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:50:26,565 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1221 DAG size of output: 1217 [2019-10-07 14:50:27,435 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 1217 [2019-10-07 14:50:27,656 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 14:50:28,537 WARN L191 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:50:30,106 WARN L191 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1217 [2019-10-07 14:50:30,975 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1217 [2019-10-07 14:50:31,204 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 14:50:32,077 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:50:33,669 WARN L191 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 1228 DAG size of output: 1219 [2019-10-07 14:50:34,545 WARN L191 SmtUtils]: Spent 873.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:50:34,781 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 609 [2019-10-07 14:50:35,657 WARN L191 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:50:35,924 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:50:35,926 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 14:50:35,933 INFO L168 Benchmark]: Toolchain (without parser) took 179893.79 ms. Allocated memory was 143.7 MB in the beginning and 881.9 MB in the end (delta: 738.2 MB). Free memory was 97.4 MB in the beginning and 352.1 MB in the end (delta: -254.7 MB). Peak memory consumption was 483.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:35,934 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:50:35,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1075.47 ms. Allocated memory was 143.7 MB in the beginning and 202.4 MB in the end (delta: 58.7 MB). Free memory was 97.0 MB in the beginning and 139.2 MB in the end (delta: -42.2 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:35,935 INFO L168 Benchmark]: Boogie Preprocessor took 160.14 ms. Allocated memory is still 202.4 MB. Free memory was 139.2 MB in the beginning and 130.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:35,936 INFO L168 Benchmark]: RCFGBuilder took 4569.31 ms. Allocated memory was 202.4 MB in the beginning and 306.7 MB in the end (delta: 104.3 MB). Free memory was 130.6 MB in the beginning and 124.2 MB in the end (delta: 6.4 MB). Peak memory consumption was 110.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:35,937 INFO L168 Benchmark]: TraceAbstraction took 174084.74 ms. Allocated memory was 306.7 MB in the beginning and 881.9 MB in the end (delta: 575.1 MB). Free memory was 124.2 MB in the beginning and 352.1 MB in the end (delta: -227.9 MB). Peak memory consumption was 347.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:35,940 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1075.47 ms. Allocated memory was 143.7 MB in the beginning and 202.4 MB in the end (delta: 58.7 MB). Free memory was 97.0 MB in the beginning and 139.2 MB in the end (delta: -42.2 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 160.14 ms. Allocated memory is still 202.4 MB. Free memory was 139.2 MB in the beginning and 130.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4569.31 ms. Allocated memory was 202.4 MB in the beginning and 306.7 MB in the end (delta: 104.3 MB). Free memory was 130.6 MB in the beginning and 124.2 MB in the end (delta: 6.4 MB). Peak memory consumption was 110.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 174084.74 ms. Allocated memory was 306.7 MB in the beginning and 881.9 MB in the end (delta: 575.1 MB). Free memory was 124.2 MB in the beginning and 352.1 MB in the end (delta: -227.9 MB). Peak memory consumption was 347.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...