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-f4eb214f-m [2019-10-13 23:12:19,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:12:19,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:12:19,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:12:19,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:12:19,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:12:19,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:12:19,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:12:19,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:12:19,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:12:19,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:12:19,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:12:19,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:12:19,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:12:19,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:12:19,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:12:19,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:12:19,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:12:19,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:12:19,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:12:19,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:12:19,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:12:19,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:12:19,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:12:19,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:12:19,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:12:19,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:12:19,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:12:19,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:12:19,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:12:19,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:12:19,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:12:19,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:12:19,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:12:19,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:12:19,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:12:19,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:12:19,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:12:19,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:12:19,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:12:19,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:12:19,734 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 [2019-10-13 23:12:19,755 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:12:19,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:12:19,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:12:19,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:12:19,759 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:12:19,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:12:19,759 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:12:19,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:12:19,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:12:19,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:12:19,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:12:19,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:12:19,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:12:19,762 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:12:19,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:12:19,762 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:12:19,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:12:19,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:12:19,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:12:19,763 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:12:19,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:12:19,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:19,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:12:19,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:12:19,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:12:19,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:12:19,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:12:19,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:12:19,765 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 [2019-10-13 23:12:20,060 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:12:20,077 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:12:20,081 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:12:20,083 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:12:20,083 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:12:20,084 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product16.cil.c [2019-10-13 23:12:20,158 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f72612ce/99c157ee6b5d421db17dad032a29b900/FLAGf5aad4a7c [2019-10-13 23:12:20,814 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:12:20,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product16.cil.c [2019-10-13 23:12:20,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f72612ce/99c157ee6b5d421db17dad032a29b900/FLAGf5aad4a7c [2019-10-13 23:12:20,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f72612ce/99c157ee6b5d421db17dad032a29b900 [2019-10-13 23:12:20,986 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:12:20,988 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:12:20,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:20,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:12:20,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:12:20,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:20" (1/1) ... [2019-10-13 23:12:20,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d9af163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:20, skipping insertion in model container [2019-10-13 23:12:20,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:20" (1/1) ... [2019-10-13 23:12:21,004 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:12:21,077 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:12:21,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:21,871 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:12:22,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:22,111 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:12:22,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:22 WrapperNode [2019-10-13 23:12:22,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:22,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:12:22,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:12:22,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:12:22,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:22" (1/1) ... [2019-10-13 23:12:22,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:22" (1/1) ... [2019-10-13 23:12:22,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:22" (1/1) ... [2019-10-13 23:12:22,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:22" (1/1) ... [2019-10-13 23:12:22,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:22" (1/1) ... [2019-10-13 23:12:22,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:22" (1/1) ... [2019-10-13 23:12:22,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:22" (1/1) ... [2019-10-13 23:12:22,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:12:22,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:12:22,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:12:22,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:12:22,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:22,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:12:22,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:12:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:12:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:12:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:12:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:12:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:12:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:12:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:12:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:12:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:12:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:12:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:12:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:12:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:12:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:12:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:12:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:12:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:12:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:12:22,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:12:22,488 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:12:22,488 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:12:22,489 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:12:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:12:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:12:22,491 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:12:22,491 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:12:22,491 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:12:22,492 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:12:22,492 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:12:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:12:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:12:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:12:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:12:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:12:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:12:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:22,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:22,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:22,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:12:22,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:12:22,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:12:22,496 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:12:22,496 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:12:22,497 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:22,497 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:12:22,497 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:22,497 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:12:22,498 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:12:22,498 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:12:22,498 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:12:22,498 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:12:22,499 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:12:22,499 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:12:22,499 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:12:22,499 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:12:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:12:22,500 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:12:22,501 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:12:22,501 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:12:22,501 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:12:22,502 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:12:22,502 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:12:22,502 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:12:22,502 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:12:22,503 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:12:22,503 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:12:22,503 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:12:22,504 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:12:22,504 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:12:22,504 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:12:22,505 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:12:22,506 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:12:22,506 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:12:22,507 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:12:22,507 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:12:22,507 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:12:22,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:12:22,508 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:12:22,509 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:12:22,509 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:12:22,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:12:22,510 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:12:22,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:12:22,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:22,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:22,511 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:12:22,512 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:12:22,512 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:12:22,512 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:12:22,512 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:12:22,513 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:12:22,513 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:12:22,513 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:12:22,513 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:12:22,514 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:12:22,514 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:12:22,514 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:12:22,514 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:12:22,514 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:12:22,515 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:12:22,515 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:12:22,515 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:12:22,515 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:12:22,516 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:12:22,516 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:12:22,516 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:12:22,516 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:12:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:12:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:12:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:12:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:12:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:12:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:12:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:12:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:12:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:12:22,519 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:12:22,520 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:12:22,520 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:12:22,520 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:12:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:12:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:12:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:12:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:12:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:12:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:12:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:12:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:12:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:12:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:12:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:12:22,529 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:12:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:12:22,530 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:12:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:12:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:12:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:12:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:12:22,533 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:12:22,533 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:12:22,534 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:12:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:12:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:12:22,543 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:12:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:12:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:12:22,545 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:12:22,545 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:12:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:12:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:12:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:12:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:12:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:12:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:12:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:12:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:12:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:12:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:12:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:12:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:12:22,549 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:22,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:12:22,549 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:22,549 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:22,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:12:22,550 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:12:22,550 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:12:22,550 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:12:22,550 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:12:22,550 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:12:22,551 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:12:22,551 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:12:22,551 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:12:22,551 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:12:22,552 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:12:22,552 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:12:22,552 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:12:22,552 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:12:22,552 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:12:22,553 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:12:22,553 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:12:22,553 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:12:22,553 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:12:22,554 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:12:22,554 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:12:22,555 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:12:22,555 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:12:22,555 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:12:22,555 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:12:22,555 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:12:22,556 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:12:22,556 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:12:22,556 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:12:22,556 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:12:22,557 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:12:22,557 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:12:22,557 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:12:22,557 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:22,557 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:22,558 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:12:22,558 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:12:22,558 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:12:22,558 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:12:22,558 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:12:22,559 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:12:22,559 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:12:22,559 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:12:22,559 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:12:22,560 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:12:22,560 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:12:22,560 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:12:22,560 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:12:22,560 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:12:22,561 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:12:22,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:22,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:22,561 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:12:22,561 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:12:22,562 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:12:22,562 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:12:22,562 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:12:22,562 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:12:22,563 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:12:22,563 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:12:22,563 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:12:22,563 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:12:22,563 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:12:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:12:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:12:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:12:22,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:12:27,448 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:12:27,448 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:12:27,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:27 BoogieIcfgContainer [2019-10-13 23:12:27,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:12:27,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:12:27,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:12:27,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:12:27,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:12:20" (1/3) ... [2019-10-13 23:12:27,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19346260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:27, skipping insertion in model container [2019-10-13 23:12:27,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:22" (2/3) ... [2019-10-13 23:12:27,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19346260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:27, skipping insertion in model container [2019-10-13 23:12:27,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:27" (3/3) ... [2019-10-13 23:12:27,459 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product16.cil.c [2019-10-13 23:12:27,470 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:12:27,491 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:12:27,503 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:12:27,541 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:12:27,542 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:12:27,542 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:12:27,542 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:12:27,542 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:12:27,542 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:12:27,542 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:12:27,542 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:12:27,572 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2019-10-13 23:12:27,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-13 23:12:27,593 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:27,595 INFO L380 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] [2019-10-13 23:12:27,597 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:27,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:27,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1339433452, now seen corresponding path program 1 times [2019-10-13 23:12:27,611 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:27,611 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095561096] [2019-10-13 23:12:27,612 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:27,612 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:27,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:28,103 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:28,104 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095561096] [2019-10-13 23:12:28,105 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:28,105 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:12:28,105 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690799224] [2019-10-13 23:12:28,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:12:28,111 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:28,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:12:28,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:12:28,127 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 2 states. [2019-10-13 23:12:28,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:28,187 INFO L93 Difference]: Finished difference Result 510 states and 601 transitions. [2019-10-13 23:12:28,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:12:28,189 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 114 [2019-10-13 23:12:28,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:28,207 INFO L225 Difference]: With dead ends: 510 [2019-10-13 23:12:28,208 INFO L226 Difference]: Without dead ends: 330 [2019-10-13 23:12:28,213 INFO L600 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 [2019-10-13 23:12:28,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-10-13 23:12:28,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2019-10-13 23:12:28,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-10-13 23:12:28,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 389 transitions. [2019-10-13 23:12:28,292 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 389 transitions. Word has length 114 [2019-10-13 23:12:28,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:28,294 INFO L462 AbstractCegarLoop]: Abstraction has 330 states and 389 transitions. [2019-10-13 23:12:28,295 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:12:28,295 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 389 transitions. [2019-10-13 23:12:28,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-13 23:12:28,299 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:28,300 INFO L380 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] [2019-10-13 23:12:28,300 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:28,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:28,301 INFO L82 PathProgramCache]: Analyzing trace with hash -183779291, now seen corresponding path program 1 times [2019-10-13 23:12:28,301 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:28,301 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849116235] [2019-10-13 23:12:28,301 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:28,301 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:28,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:28,551 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:28,552 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849116235] [2019-10-13 23:12:28,552 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:28,552 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:28,553 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594604393] [2019-10-13 23:12:28,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:28,557 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:28,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:28,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:28,558 INFO L87 Difference]: Start difference. First operand 330 states and 389 transitions. Second operand 3 states. [2019-10-13 23:12:28,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:28,631 INFO L93 Difference]: Finished difference Result 495 states and 573 transitions. [2019-10-13 23:12:28,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:28,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-10-13 23:12:28,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:28,641 INFO L225 Difference]: With dead ends: 495 [2019-10-13 23:12:28,642 INFO L226 Difference]: Without dead ends: 332 [2019-10-13 23:12:28,648 INFO L600 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 [2019-10-13 23:12:28,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2019-10-13 23:12:28,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2019-10-13 23:12:28,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2019-10-13 23:12:28,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 391 transitions. [2019-10-13 23:12:28,682 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 391 transitions. Word has length 115 [2019-10-13 23:12:28,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:28,683 INFO L462 AbstractCegarLoop]: Abstraction has 332 states and 391 transitions. [2019-10-13 23:12:28,683 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:28,683 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 391 transitions. [2019-10-13 23:12:28,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-13 23:12:28,686 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:28,687 INFO L380 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] [2019-10-13 23:12:28,687 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:28,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:28,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1159958925, now seen corresponding path program 1 times [2019-10-13 23:12:28,688 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:28,688 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210160001] [2019-10-13 23:12:28,688 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:28,688 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:28,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:28,937 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:28,938 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210160001] [2019-10-13 23:12:28,938 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:28,938 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:28,938 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975005410] [2019-10-13 23:12:28,941 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:28,941 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:28,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:28,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:28,942 INFO L87 Difference]: Start difference. First operand 332 states and 391 transitions. Second operand 3 states. [2019-10-13 23:12:28,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:28,993 INFO L93 Difference]: Finished difference Result 646 states and 789 transitions. [2019-10-13 23:12:28,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:28,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2019-10-13 23:12:28,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:29,002 INFO L225 Difference]: With dead ends: 646 [2019-10-13 23:12:29,002 INFO L226 Difference]: Without dead ends: 372 [2019-10-13 23:12:29,006 INFO L600 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 [2019-10-13 23:12:29,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2019-10-13 23:12:29,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2019-10-13 23:12:29,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2019-10-13 23:12:29,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 459 transitions. [2019-10-13 23:12:29,054 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 459 transitions. Word has length 120 [2019-10-13 23:12:29,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:29,055 INFO L462 AbstractCegarLoop]: Abstraction has 371 states and 459 transitions. [2019-10-13 23:12:29,055 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:29,055 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 459 transitions. [2019-10-13 23:12:29,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-13 23:12:29,061 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:29,061 INFO L380 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] [2019-10-13 23:12:29,062 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:29,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:29,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1604310104, now seen corresponding path program 1 times [2019-10-13 23:12:29,063 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:29,063 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273908187] [2019-10-13 23:12:29,063 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:29,063 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:29,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:29,341 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:12:29,342 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273908187] [2019-10-13 23:12:29,342 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:29,342 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:29,342 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012131893] [2019-10-13 23:12:29,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:29,345 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:29,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:29,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:29,345 INFO L87 Difference]: Start difference. First operand 371 states and 459 transitions. Second operand 3 states. [2019-10-13 23:12:29,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:29,408 INFO L93 Difference]: Finished difference Result 567 states and 681 transitions. [2019-10-13 23:12:29,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:29,410 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2019-10-13 23:12:29,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:29,414 INFO L225 Difference]: With dead ends: 567 [2019-10-13 23:12:29,415 INFO L226 Difference]: Without dead ends: 405 [2019-10-13 23:12:29,416 INFO L600 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 [2019-10-13 23:12:29,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2019-10-13 23:12:29,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2019-10-13 23:12:29,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-10-13 23:12:29,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 491 transitions. [2019-10-13 23:12:29,453 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 491 transitions. Word has length 121 [2019-10-13 23:12:29,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:29,456 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 491 transitions. [2019-10-13 23:12:29,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:29,456 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 491 transitions. [2019-10-13 23:12:29,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-13 23:12:29,463 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:29,464 INFO L380 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] [2019-10-13 23:12:29,464 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:29,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:29,465 INFO L82 PathProgramCache]: Analyzing trace with hash -362383788, now seen corresponding path program 1 times [2019-10-13 23:12:29,465 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:29,466 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141084805] [2019-10-13 23:12:29,466 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:29,466 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:29,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:29,891 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:12:29,892 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141084805] [2019-10-13 23:12:29,892 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:29,892 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 23:12:29,893 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454094436] [2019-10-13 23:12:29,893 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:12:29,894 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:29,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:12:29,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:12:29,894 INFO L87 Difference]: Start difference. First operand 405 states and 491 transitions. Second operand 11 states. [2019-10-13 23:12:32,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:32,380 INFO L93 Difference]: Finished difference Result 481 states and 562 transitions. [2019-10-13 23:12:32,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 23:12:32,381 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2019-10-13 23:12:32,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:32,384 INFO L225 Difference]: With dead ends: 481 [2019-10-13 23:12:32,385 INFO L226 Difference]: Without dead ends: 413 [2019-10-13 23:12:32,385 INFO L600 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 [2019-10-13 23:12:32,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-10-13 23:12:32,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2019-10-13 23:12:32,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-10-13 23:12:32,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 493 transitions. [2019-10-13 23:12:32,409 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 493 transitions. Word has length 206 [2019-10-13 23:12:32,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:32,410 INFO L462 AbstractCegarLoop]: Abstraction has 413 states and 493 transitions. [2019-10-13 23:12:32,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:12:32,410 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 493 transitions. [2019-10-13 23:12:32,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2019-10-13 23:12:32,414 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:32,415 INFO L380 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] [2019-10-13 23:12:32,415 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:32,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:32,415 INFO L82 PathProgramCache]: Analyzing trace with hash -102328758, now seen corresponding path program 1 times [2019-10-13 23:12:32,415 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:32,416 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904385174] [2019-10-13 23:12:32,416 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:32,416 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:32,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:33,128 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-10-13 23:12:33,131 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904385174] [2019-10-13 23:12:33,131 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441276468] [2019-10-13 23:12:33,131 INFO L94 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 [2019-10-13 23:12:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:33,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 3018 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:12:33,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:12:33,939 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-13 23:12:33,939 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:12:34,671 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-13 23:12:34,672 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1574664411] [2019-10-13 23:12:34,709 INFO L162 IcfgInterpreter]: Started Sifa with 205 locations of interest [2019-10-13 23:12:34,709 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:12:34,722 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:12:34,731 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:12:34,732 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs