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_spec8_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:06:55,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:06:55,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:06:55,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:06:55,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:06:55,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:06:55,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:06:55,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:06:55,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:06:55,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:06:55,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:06:55,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:06:55,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:06:55,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:06:55,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:06:55,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:06:55,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:06:55,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:06:55,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:06:55,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:06:55,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:06:55,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:06:55,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:06:55,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:06:55,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:06:55,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:06:55,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:06:55,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:06:55,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:06:55,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:06:55,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:06:55,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:06:55,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:06:55,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:06:55,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:06:55,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:06:55,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:06:55,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:06:55,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:06:55,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:06:55,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:06:55,823 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 15:06:55,837 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:06:55,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:06:55,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:06:55,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:06:55,839 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:06:55,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:06:55,839 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:06:55,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:06:55,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:06:55,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:06:55,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:06:55,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:06:55,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:06:55,841 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:06:55,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:06:55,841 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:06:55,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:06:55,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:06:55,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:06:55,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:06:55,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:06:55,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:06:55,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:06:55,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:06:55,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:06:55,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:06:55,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:06:55,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:06:55,844 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 15:06:56,199 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:06:56,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:06:56,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:06:56,218 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:06:56,219 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:06:56,219 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product16.cil.c [2019-10-07 15:06:56,281 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46a0fdbdf/c6a1036d9bc44b8fa54d81e0d25cfa61/FLAGe3ae555dd [2019-10-07 15:06:56,912 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:06:56,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product16.cil.c [2019-10-07 15:06:56,948 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46a0fdbdf/c6a1036d9bc44b8fa54d81e0d25cfa61/FLAGe3ae555dd [2019-10-07 15:06:57,092 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46a0fdbdf/c6a1036d9bc44b8fa54d81e0d25cfa61 [2019-10-07 15:06:57,104 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:06:57,106 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:06:57,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:06:57,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:06:57,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:06:57,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:06:57" (1/1) ... [2019-10-07 15:06:57,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e4e7eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:57, skipping insertion in model container [2019-10-07 15:06:57,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:06:57" (1/1) ... [2019-10-07 15:06:57,128 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:06:57,203 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:06:57,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:06:57,949 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:06:58,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:06:58,162 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:06:58,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:58 WrapperNode [2019-10-07 15:06:58,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:06:58,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:06:58,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:06:58,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:06:58,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:58" (1/1) ... [2019-10-07 15:06:58,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:58" (1/1) ... [2019-10-07 15:06:58,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:58" (1/1) ... [2019-10-07 15:06:58,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:58" (1/1) ... [2019-10-07 15:06:58,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:58" (1/1) ... [2019-10-07 15:06:58,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:58" (1/1) ... [2019-10-07 15:06:58,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:58" (1/1) ... [2019-10-07 15:06:58,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:06:58,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:06:58,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:06:58,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:06:58,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:58" (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 15:06:58,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:06:58,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:06:58,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:06:58,451 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:06:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:06:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:06:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:06:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:06:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:06:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:06:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:06:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:06:58,453 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:06:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:06:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:06:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:06:58,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:06:58,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:06:58,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:06:58,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:06:58,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:06:58,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:06:58,457 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:06:58,457 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:06:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:06:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:06:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:06:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:06:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:06:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:06:58,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:06:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:06:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:06:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:06:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:06:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:06:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:06:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:06:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:06:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:06:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:06:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:06:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:06:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:06:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:06:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:06:58,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:06:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:06:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:06:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:06:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:06:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:06:58,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:06:58,463 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:06:58,463 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:06:58,463 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:06:58,463 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:06:58,463 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:06:58,464 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:06:58,464 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:06:58,464 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:06:58,464 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:06:58,464 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:06:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 15:06:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:06:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:06:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:06:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:06:58,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:06:58,466 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:06:58,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:06:58,466 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:06:58,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:06:58,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:06:58,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:06:58,467 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:06:58,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:06:58,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:06:58,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:06:58,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:06:58,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:06:58,468 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:06:58,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:06:58,469 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:06:58,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:06:58,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:06:58,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-07 15:06:58,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-07 15:06:58,470 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:06:58,470 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:06:58,470 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:06:58,470 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:06:58,470 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:06:58,471 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:06:58,471 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:06:58,471 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:06:58,471 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:06:58,471 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:06:58,471 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:06:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 15:06:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:06:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:06:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:06:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:06:58,472 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:06:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:06:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:06:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:06:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:06:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 15:06:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:06:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:06:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:06:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:06:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:06:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:06:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:06:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:06:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:06:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:06:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:06:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:06:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:06:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:06:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:06:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:06:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:06:58,477 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:06:58,477 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:06:58,477 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:06:58,477 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:06:58,477 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:06:58,478 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:06:58,478 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:06:58,478 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:06:58,478 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:06:58,478 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:06:58,478 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:06:58,479 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:06:58,479 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:06:58,479 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:06:58,479 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:06:58,479 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:06:58,479 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:06:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:06:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:06:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:06:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:06:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:06:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:06:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:06:58,481 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:06:58,481 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:06:58,481 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:06:58,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:06:58,481 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:06:58,481 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:06:58,481 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:06:58,482 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:06:58,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:06:58,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:06:58,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:06:58,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:06:58,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:06:58,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:06:58,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:06:58,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:06:58,483 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:06:58,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:06:58,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:06:58,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:06:58,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:06:58,484 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:06:58,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:06:58,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:06:58,484 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:06:58,484 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:06:58,484 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:06:58,484 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:06:58,484 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:06:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:06:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:06:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:06:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:06:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:06:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:06:58,485 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:06:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:06:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:06:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:06:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:06:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:06:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:06:58,486 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:06:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:06:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:06:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:06:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:06:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:06:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 15:06:58,487 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:06:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:06:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:06:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:06:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:06:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:06:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:06:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:06:58,488 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:06:58,489 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:06:58,489 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:06:58,489 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:06:58,489 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:06:58,489 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:06:58,489 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:06:58,489 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:06:58,490 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:06:58,490 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:06:58,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-07 15:06:58,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-07 15:06:58,490 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:06:58,490 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:06:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:06:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:06:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:06:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:06:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:06:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:06:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 15:06:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:06:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:06:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 15:06:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:06:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:06:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:07:03,191 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:07:03,192 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:07:03,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:07:03 BoogieIcfgContainer [2019-10-07 15:07:03,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:07:03,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:07:03,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:07:03,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:07:03,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:06:57" (1/3) ... [2019-10-07 15:07:03,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288e8c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:07:03, skipping insertion in model container [2019-10-07 15:07:03,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:06:58" (2/3) ... [2019-10-07 15:07:03,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288e8c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:07:03, skipping insertion in model container [2019-10-07 15:07:03,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:07:03" (3/3) ... [2019-10-07 15:07:03,202 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product16.cil.c [2019-10-07 15:07:03,212 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:07:03,221 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:07:03,233 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:07:03,261 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:07:03,262 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:07:03,262 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:07:03,262 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:07:03,262 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:07:03,262 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:07:03,262 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:07:03,262 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:07:03,289 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2019-10-07 15:07:03,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-07 15:07:03,305 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:03,306 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:07:03,308 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:03,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:03,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1339433452, now seen corresponding path program 1 times [2019-10-07 15:07:03,324 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:03,324 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:03,325 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:03,325 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:03,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:03,940 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 15:07:03,940 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:03,941 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:03,941 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:07:03,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:07:03,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:07:03,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:07:03,966 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 2 states. [2019-10-07 15:07:04,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:04,036 INFO L93 Difference]: Finished difference Result 510 states and 601 transitions. [2019-10-07 15:07:04,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:07:04,038 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 114 [2019-10-07 15:07:04,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:04,057 INFO L225 Difference]: With dead ends: 510 [2019-10-07 15:07:04,057 INFO L226 Difference]: Without dead ends: 330 [2019-10-07 15:07:04,063 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 15:07:04,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-10-07 15:07:04,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2019-10-07 15:07:04,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-10-07 15:07:04,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 389 transitions. [2019-10-07 15:07:04,158 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 389 transitions. Word has length 114 [2019-10-07 15:07:04,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:04,160 INFO L462 AbstractCegarLoop]: Abstraction has 330 states and 389 transitions. [2019-10-07 15:07:04,160 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:07:04,161 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 389 transitions. [2019-10-07 15:07:04,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-07 15:07:04,165 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:04,166 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:07:04,166 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:04,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:04,167 INFO L82 PathProgramCache]: Analyzing trace with hash -183779291, now seen corresponding path program 1 times [2019-10-07 15:07:04,167 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:04,167 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:04,167 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:04,168 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:04,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:04,524 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 15:07:04,524 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:04,525 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:04,525 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:07:04,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:07:04,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:07:04,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:04,528 INFO L87 Difference]: Start difference. First operand 330 states and 389 transitions. Second operand 3 states. [2019-10-07 15:07:04,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:04,589 INFO L93 Difference]: Finished difference Result 495 states and 573 transitions. [2019-10-07 15:07:04,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:07:04,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-10-07 15:07:04,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:04,600 INFO L225 Difference]: With dead ends: 495 [2019-10-07 15:07:04,600 INFO L226 Difference]: Without dead ends: 332 [2019-10-07 15:07:04,605 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 15:07:04,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2019-10-07 15:07:04,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2019-10-07 15:07:04,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2019-10-07 15:07:04,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 391 transitions. [2019-10-07 15:07:04,658 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 391 transitions. Word has length 115 [2019-10-07 15:07:04,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:04,660 INFO L462 AbstractCegarLoop]: Abstraction has 332 states and 391 transitions. [2019-10-07 15:07:04,661 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:07:04,661 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 391 transitions. [2019-10-07 15:07:04,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 15:07:04,666 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:04,667 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] [2019-10-07 15:07:04,667 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:04,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:04,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1159958925, now seen corresponding path program 1 times [2019-10-07 15:07:04,668 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:04,668 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:04,669 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:04,669 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:04,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:04,888 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 15:07:04,889 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:04,889 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:04,889 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:07:04,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:07:04,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:07:04,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:04,893 INFO L87 Difference]: Start difference. First operand 332 states and 391 transitions. Second operand 3 states. [2019-10-07 15:07:04,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:04,952 INFO L93 Difference]: Finished difference Result 646 states and 789 transitions. [2019-10-07 15:07:04,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:07:04,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2019-10-07 15:07:04,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:04,962 INFO L225 Difference]: With dead ends: 646 [2019-10-07 15:07:04,963 INFO L226 Difference]: Without dead ends: 372 [2019-10-07 15:07:04,968 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 15:07:04,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2019-10-07 15:07:04,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2019-10-07 15:07:04,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2019-10-07 15:07:04,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 459 transitions. [2019-10-07 15:07:04,999 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 459 transitions. Word has length 120 [2019-10-07 15:07:04,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:05,000 INFO L462 AbstractCegarLoop]: Abstraction has 371 states and 459 transitions. [2019-10-07 15:07:05,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:07:05,000 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 459 transitions. [2019-10-07 15:07:05,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 15:07:05,003 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:05,003 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] [2019-10-07 15:07:05,003 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:05,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:05,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1604310104, now seen corresponding path program 1 times [2019-10-07 15:07:05,004 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:05,004 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:05,005 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:05,005 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:05,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:05,174 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 15:07:05,174 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:05,175 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:05,175 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:07:05,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:07:05,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:07:05,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:05,176 INFO L87 Difference]: Start difference. First operand 371 states and 459 transitions. Second operand 3 states. [2019-10-07 15:07:05,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:05,234 INFO L93 Difference]: Finished difference Result 567 states and 681 transitions. [2019-10-07 15:07:05,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:07:05,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2019-10-07 15:07:05,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:05,243 INFO L225 Difference]: With dead ends: 567 [2019-10-07 15:07:05,243 INFO L226 Difference]: Without dead ends: 405 [2019-10-07 15:07:05,245 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 15:07:05,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2019-10-07 15:07:05,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2019-10-07 15:07:05,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-10-07 15:07:05,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 491 transitions. [2019-10-07 15:07:05,284 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 491 transitions. Word has length 121 [2019-10-07 15:07:05,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:05,287 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 491 transitions. [2019-10-07 15:07:05,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:07:05,287 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 491 transitions. [2019-10-07 15:07:05,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-07 15:07:05,296 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:05,296 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:07:05,297 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:05,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:05,298 INFO L82 PathProgramCache]: Analyzing trace with hash -362383788, now seen corresponding path program 1 times [2019-10-07 15:07:05,298 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:05,298 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:05,298 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:05,299 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:05,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:05,738 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-07 15:07:05,738 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:05,738 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:05,739 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-07 15:07:05,740 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 15:07:05,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 15:07:05,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-07 15:07:05,741 INFO L87 Difference]: Start difference. First operand 405 states and 491 transitions. Second operand 11 states. [2019-10-07 15:07:08,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:08,193 INFO L93 Difference]: Finished difference Result 481 states and 562 transitions. [2019-10-07 15:07:08,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 15:07:08,194 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2019-10-07 15:07:08,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:08,198 INFO L225 Difference]: With dead ends: 481 [2019-10-07 15:07:08,198 INFO L226 Difference]: Without dead ends: 413 [2019-10-07 15:07:08,199 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-07 15:07:08,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-10-07 15:07:08,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2019-10-07 15:07:08,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-10-07 15:07:08,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 493 transitions. [2019-10-07 15:07:08,223 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 493 transitions. Word has length 206 [2019-10-07 15:07:08,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:08,224 INFO L462 AbstractCegarLoop]: Abstraction has 413 states and 493 transitions. [2019-10-07 15:07:08,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 15:07:08,225 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 493 transitions. [2019-10-07 15:07:08,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2019-10-07 15:07:08,233 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:08,233 INFO L385 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:07:08,233 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:08,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:08,234 INFO L82 PathProgramCache]: Analyzing trace with hash -102328758, now seen corresponding path program 1 times [2019-10-07 15:07:08,234 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:08,234 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:08,234 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:08,235 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:08,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:08,843 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-10-07 15:07:08,844 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:08,845 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:07:08,845 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 15:07:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:09,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 3018 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:07:09,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:07:09,667 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-07 15:07:09,668 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:07:10,406 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-07 15:07:10,407 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:07:10,442 INFO L162 IcfgInterpreter]: Started Sifa with 205 locations of interest [2019-10-07 15:07:10,443 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:07:10,450 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:07:10,458 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:07:10,459 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:08:00,874 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 677 [2019-10-07 15:08:04,696 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 301 DAG size of output: 245 [2019-10-07 15:08:05,052 WARN L191 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-10-07 15:08:05,323 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-10-07 15:08:05,614 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 715 [2019-10-07 15:08:05,801 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:08:06,475 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:08:07,142 WARN L191 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:08:07,743 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:08:07,894 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:08:08,524 WARN L191 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:08:09,783 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1013 DAG size of output: 1011 [2019-10-07 15:08:10,382 WARN L191 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:08:10,516 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:08:11,130 WARN L191 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:08:11,730 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:08:12,367 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:08:12,484 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:08:13,104 WARN L191 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 15:08:13,129 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 556 for LOIs [2019-10-07 15:08:13,493 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 15:08:13,597 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 15:08:13,719 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:08:14,168 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 940 [2019-10-07 15:08:14,170 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1049 for LOIs [2019-10-07 15:08:14,809 WARN L191 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:15,393 WARN L191 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:15,702 WARN L191 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:16,539 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:17,126 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:17,760 WARN L191 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:18,045 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:18,856 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:19,491 WARN L191 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:20,078 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:20,272 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:21,106 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:22,165 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1049 [2019-10-07 15:08:22,753 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:23,137 WARN L191 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-07 15:08:24,005 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:24,606 WARN L191 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:25,187 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:25,377 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:26,188 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:26,769 WARN L191 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:27,372 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:27,559 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:28,375 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:28,961 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:29,543 WARN L191 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:29,738 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:30,564 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:31,159 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:31,740 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:31,930 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:32,742 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:33,318 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:33,889 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:34,077 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:34,905 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:35,481 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:36,057 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:36,245 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:37,046 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:37,616 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:38,191 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:38,389 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:39,195 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:39,770 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:40,350 WARN L191 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:40,538 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:41,338 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:41,912 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:42,493 WARN L191 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 1049 [2019-10-07 15:08:42,683 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:43,497 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:44,349 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:45,159 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:45,359 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:46,162 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:47,615 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:08:48,419 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:48,620 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:49,420 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:50,231 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:51,029 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:51,219 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:08:52,030 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:08:52,871 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1169 [2019-10-07 15:08:53,674 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1169 [2019-10-07 15:08:53,868 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:08:54,682 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:08:55,515 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:08:56,330 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:08:56,528 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:08:57,342 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:08:58,723 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1173 DAG size of output: 1169 [2019-10-07 15:08:59,539 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1169 [2019-10-07 15:08:59,730 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:09:00,547 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:09:01,380 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:09:02,215 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:09:02,410 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:09:03,232 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1176 [2019-10-07 15:09:04,064 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 1178 [2019-10-07 15:09:04,904 WARN L191 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 1178 [2019-10-07 15:09:05,114 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:09:05,941 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1178 [2019-10-07 15:09:08,400 WARN L191 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:09:09,225 WARN L191 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:09:09,429 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:09:10,253 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:09:11,760 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:09:12,581 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:09:12,839 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:09:13,657 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:09:14,463 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:09:15,283 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:09:15,474 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:09:16,287 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:09:18,737 WARN L191 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:09:19,551 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:09:19,748 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:09:20,562 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:09:22,013 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1169 DAG size of output: 1167 [2019-10-07 15:09:22,817 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:09:23,020 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:09:23,839 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:09:24,665 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:09:25,495 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:09:25,685 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-07 15:09:26,506 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:09:28,021 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1173 DAG size of output: 1171 [2019-10-07 15:09:28,872 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:09:29,075 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:09:29,912 WARN L191 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:09:31,418 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1173 DAG size of output: 1171 [2019-10-07 15:09:32,242 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:09:32,447 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:09:33,277 WARN L191 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:09:34,775 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1173 DAG size of output: 1171 [2019-10-07 15:09:35,606 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:09:35,807 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:09:36,634 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:09:38,119 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1178 DAG size of output: 1169 [2019-10-07 15:09:38,946 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1169 [2019-10-07 15:09:39,146 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:09:39,971 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:09:41,464 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1180 DAG size of output: 1171 [2019-10-07 15:09:42,291 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1171 [2019-10-07 15:09:42,516 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-07 15:09:43,343 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:09:43,615 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:09:43,616 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:09:43,623 INFO L168 Benchmark]: Toolchain (without parser) took 166516.66 ms. Allocated memory was 142.1 MB in the beginning and 721.4 MB in the end (delta: 579.3 MB). Free memory was 97.4 MB in the beginning and 246.4 MB in the end (delta: -149.0 MB). Peak memory consumption was 430.3 MB. Max. memory is 7.1 GB. [2019-10-07 15:09:43,623 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-07 15:09:43,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1052.47 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 97.0 MB in the beginning and 137.2 MB in the end (delta: -40.3 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:09:43,625 INFO L168 Benchmark]: Boogie Preprocessor took 187.54 ms. Allocated memory is still 199.8 MB. Free memory was 137.2 MB in the beginning and 128.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:09:43,625 INFO L168 Benchmark]: RCFGBuilder took 4842.57 ms. Allocated memory was 199.8 MB in the beginning and 319.3 MB in the end (delta: 119.5 MB). Free memory was 128.1 MB in the beginning and 167.8 MB in the end (delta: -39.6 MB). Peak memory consumption was 116.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:09:43,626 INFO L168 Benchmark]: TraceAbstraction took 160425.78 ms. Allocated memory was 319.3 MB in the beginning and 721.4 MB in the end (delta: 402.1 MB). Free memory was 164.1 MB in the beginning and 246.4 MB in the end (delta: -82.3 MB). Peak memory consumption was 319.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:09:43,629 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1052.47 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 97.0 MB in the beginning and 137.2 MB in the end (delta: -40.3 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 187.54 ms. Allocated memory is still 199.8 MB. Free memory was 137.2 MB in the beginning and 128.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4842.57 ms. Allocated memory was 199.8 MB in the beginning and 319.3 MB in the end (delta: 119.5 MB). Free memory was 128.1 MB in the beginning and 167.8 MB in the end (delta: -39.6 MB). Peak memory consumption was 116.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 160425.78 ms. Allocated memory was 319.3 MB in the beginning and 721.4 MB in the end (delta: 402.1 MB). Free memory was 164.1 MB in the beginning and 246.4 MB in the end (delta: -82.3 MB). Peak memory consumption was 319.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...