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_spec9_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:10:14,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:10:14,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:10:14,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:10:14,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:10:14,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:10:14,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:10:14,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:10:14,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:10:14,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:10:14,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:10:14,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:10:14,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:10:14,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:10:14,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:10:14,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:10:14,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:10:14,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:10:14,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:10:14,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:10:14,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:10:14,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:10:14,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:10:14,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:10:14,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:10:14,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:10:14,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:10:14,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:10:14,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:10:14,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:10:14,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:10:14,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:10:14,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:10:14,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:10:14,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:10:14,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:10:14,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:10:14,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:10:14,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:10:14,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:10:14,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:10:14,371 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 15:10:14,390 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:10:14,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:10:14,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:10:14,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:10:14,393 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:10:14,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:10:14,394 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:10:14,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:10:14,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:10:14,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:10:14,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:10:14,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:10:14,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:10:14,396 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:10:14,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:10:14,396 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:10:14,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:10:14,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:10:14,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:10:14,397 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:10:14,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:10:14,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:10:14,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:10:14,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:10:14,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:10:14,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:10:14,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:10:14,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:10:14,399 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 15:10:14,689 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:10:14,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:10:14,705 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:10:14,706 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:10:14,707 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:10:14,708 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product14.cil.c [2019-10-07 15:10:14,769 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caf4db1c9/83baad4e719e454db554cfd46fb8600d/FLAGf8466f295 [2019-10-07 15:10:15,378 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:10:15,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product14.cil.c [2019-10-07 15:10:15,399 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caf4db1c9/83baad4e719e454db554cfd46fb8600d/FLAGf8466f295 [2019-10-07 15:10:15,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caf4db1c9/83baad4e719e454db554cfd46fb8600d [2019-10-07 15:10:15,623 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:10:15,625 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:10:15,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:10:15,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:10:15,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:10:15,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:10:15" (1/1) ... [2019-10-07 15:10:15,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56400103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:15, skipping insertion in model container [2019-10-07 15:10:15,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:10:15" (1/1) ... [2019-10-07 15:10:15,642 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:10:15,707 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:10:16,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:10:16,468 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:10:16,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:10:16,685 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:10:16,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:16 WrapperNode [2019-10-07 15:10:16,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:10:16,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:10:16,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:10:16,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:10:16,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:16" (1/1) ... [2019-10-07 15:10:16,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:16" (1/1) ... [2019-10-07 15:10:16,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:16" (1/1) ... [2019-10-07 15:10:16,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:16" (1/1) ... [2019-10-07 15:10:16,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:16" (1/1) ... [2019-10-07 15:10:16,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:16" (1/1) ... [2019-10-07 15:10:16,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:16" (1/1) ... [2019-10-07 15:10:16,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:10:16,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:10:16,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:10:16,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:10:16,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:16" (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 15:10:16,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:10:16,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:10:16,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:10:16,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:10:16,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:10:16,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:10:16,978 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:10:16,978 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:10:16,978 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:10:16,979 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:10:16,979 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:10:16,980 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:10:16,980 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:10:16,981 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:10:16,981 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:10:16,981 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:10:16,984 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:10:16,984 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:10:16,984 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:10:16,985 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:10:16,985 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:10:16,985 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:10:16,985 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 15:10:16,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-07 15:10:16,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-07 15:10:16,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:10:16,986 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:10:16,987 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:10:16,987 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-07 15:10:16,987 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:10:16,987 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:10:16,987 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-07 15:10:16,987 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:10:16,988 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:10:16,988 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:10:16,988 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:10:16,988 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:10:16,988 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:10:16,988 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:10:16,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:10:16,989 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:10:16,989 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 15:10:16,989 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:10:16,989 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:10:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:10:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:10:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:10:16,992 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:10:16,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:10:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:10:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:10:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:10:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:10:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:10:16,994 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:10:16,994 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:10:16,994 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:10:16,994 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:10:16,995 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:10:16,996 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:10:16,996 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:10:16,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:10:16,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:10:16,997 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:10:16,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:10:16,997 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:10:16,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:10:16,997 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:10:16,998 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:10:16,998 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:10:16,998 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:10:16,998 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:10:16,998 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:10:16,999 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:10:16,999 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:10:17,000 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:10:17,000 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:10:17,000 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:10:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:10:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:10:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:10:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:10:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:10:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:10:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:10:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:10:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:10:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:10:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:10:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:10:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:10:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:10:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:10:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:10:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:10:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:10:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:10:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:10:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:10:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:10:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:10:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:10:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:10:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:10:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:10:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:10:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:10:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:10:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:10:17,008 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:10:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:10:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:10:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:10:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:10:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:10:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:10:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:10:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:10:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:10:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:10:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:10:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:10:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:10:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:10:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:10:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:10:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:10:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:10:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:10:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:10:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:10:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:10:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:10:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:10:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:10:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:10:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:10:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:10:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:10:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:10:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:10:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:10:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:10:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:10:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:10:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:10:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:10:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:10:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:10:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:10:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 15:10:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:10:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:10:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:10:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:10:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:10:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:10:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-07 15:10:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-07 15:10:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:10:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:10:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:10:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:10:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:10:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:10:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:10:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:10:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:10:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:10:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:10:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:10:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:10:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:10:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:10:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:10:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:10:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:10:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:10:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 15:10:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:10:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-07 15:10:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-07 15:10:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:10:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:10:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:10:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:10:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:10:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:10:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:10:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:10:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:10:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:10:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:10:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:10:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:10:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:10:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:10:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:10:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:10:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:10:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:10:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:10:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:10:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:10:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:10:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:10:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:10:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:10:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:10:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:10:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:10:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:10:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:10:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:10:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:10:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:10:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:10:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:10:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:10:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:10:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:10:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:10:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:10:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:10:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:10:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:10:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:10:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:10:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:10:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:10:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:10:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:10:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:10:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:10:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:10:21,773 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:10:21,773 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:10:21,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:10:21 BoogieIcfgContainer [2019-10-07 15:10:21,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:10:21,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:10:21,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:10:21,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:10:21,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:10:15" (1/3) ... [2019-10-07 15:10:21,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae894e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:10:21, skipping insertion in model container [2019-10-07 15:10:21,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:16" (2/3) ... [2019-10-07 15:10:21,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae894e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:10:21, skipping insertion in model container [2019-10-07 15:10:21,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:10:21" (3/3) ... [2019-10-07 15:10:21,784 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product14.cil.c [2019-10-07 15:10:21,796 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:10:21,806 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:10:21,818 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:10:21,849 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:10:21,849 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:10:21,849 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:10:21,850 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:10:21,850 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:10:21,850 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:10:21,850 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:10:21,850 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:10:21,878 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states. [2019-10-07 15:10:21,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 15:10:21,954 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:21,960 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:21,963 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:21,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:21,970 INFO L82 PathProgramCache]: Analyzing trace with hash -2042434371, now seen corresponding path program 1 times [2019-10-07 15:10:21,979 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:21,980 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:21,980 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:21,980 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:21,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:22,669 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 15:10:22,670 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:22,671 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:22,672 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:10:22,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:10:22,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:10:22,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:10:22,696 INFO L87 Difference]: Start difference. First operand 359 states. Second operand 2 states. [2019-10-07 15:10:22,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:22,804 INFO L93 Difference]: Finished difference Result 469 states and 564 transitions. [2019-10-07 15:10:22,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:10:22,807 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 121 [2019-10-07 15:10:22,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:22,832 INFO L225 Difference]: With dead ends: 469 [2019-10-07 15:10:22,832 INFO L226 Difference]: Without dead ends: 313 [2019-10-07 15:10:22,838 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 15:10:22,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-10-07 15:10:22,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-10-07 15:10:22,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-10-07 15:10:22,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 373 transitions. [2019-10-07 15:10:22,917 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 373 transitions. Word has length 121 [2019-10-07 15:10:22,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:22,920 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 373 transitions. [2019-10-07 15:10:22,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:10:22,920 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 373 transitions. [2019-10-07 15:10:22,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-10-07 15:10:22,925 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:22,926 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:22,926 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:22,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:22,927 INFO L82 PathProgramCache]: Analyzing trace with hash -972187910, now seen corresponding path program 1 times [2019-10-07 15:10:22,927 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:22,927 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:22,927 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:22,927 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:22,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:23,119 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 15:10:23,120 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:23,120 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:23,120 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:23,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:23,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:23,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:23,123 INFO L87 Difference]: Start difference. First operand 313 states and 373 transitions. Second operand 3 states. [2019-10-07 15:10:23,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:23,169 INFO L93 Difference]: Finished difference Result 454 states and 533 transitions. [2019-10-07 15:10:23,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:23,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2019-10-07 15:10:23,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:23,178 INFO L225 Difference]: With dead ends: 454 [2019-10-07 15:10:23,178 INFO L226 Difference]: Without dead ends: 315 [2019-10-07 15:10:23,182 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 15:10:23,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2019-10-07 15:10:23,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2019-10-07 15:10:23,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2019-10-07 15:10:23,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 375 transitions. [2019-10-07 15:10:23,238 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 375 transitions. Word has length 122 [2019-10-07 15:10:23,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:23,241 INFO L462 AbstractCegarLoop]: Abstraction has 315 states and 375 transitions. [2019-10-07 15:10:23,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:23,241 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 375 transitions. [2019-10-07 15:10:23,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-07 15:10:23,247 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:23,249 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:23,250 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:23,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:23,250 INFO L82 PathProgramCache]: Analyzing trace with hash 434987233, now seen corresponding path program 1 times [2019-10-07 15:10:23,250 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:23,251 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:23,251 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:23,251 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:23,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:23,557 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 15:10:23,557 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:23,558 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:23,558 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:23,559 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:23,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:23,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:23,560 INFO L87 Difference]: Start difference. First operand 315 states and 375 transitions. Second operand 3 states. [2019-10-07 15:10:23,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:23,591 INFO L93 Difference]: Finished difference Result 612 states and 757 transitions. [2019-10-07 15:10:23,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:23,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2019-10-07 15:10:23,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:23,595 INFO L225 Difference]: With dead ends: 612 [2019-10-07 15:10:23,595 INFO L226 Difference]: Without dead ends: 355 [2019-10-07 15:10:23,597 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 15:10:23,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2019-10-07 15:10:23,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 354. [2019-10-07 15:10:23,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2019-10-07 15:10:23,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 443 transitions. [2019-10-07 15:10:23,617 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 443 transitions. Word has length 127 [2019-10-07 15:10:23,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:23,617 INFO L462 AbstractCegarLoop]: Abstraction has 354 states and 443 transitions. [2019-10-07 15:10:23,617 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:23,617 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 443 transitions. [2019-10-07 15:10:23,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-07 15:10:23,620 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:23,620 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:23,620 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:23,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:23,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1525947927, now seen corresponding path program 1 times [2019-10-07 15:10:23,621 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:23,621 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:23,621 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:23,621 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:23,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:23,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:23,835 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 15:10:23,835 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:23,835 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:23,835 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:23,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:23,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:23,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:23,837 INFO L87 Difference]: Start difference. First operand 354 states and 443 transitions. Second operand 3 states. [2019-10-07 15:10:23,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:23,893 INFO L93 Difference]: Finished difference Result 545 states and 667 transitions. [2019-10-07 15:10:23,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:23,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-10-07 15:10:23,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:23,901 INFO L225 Difference]: With dead ends: 545 [2019-10-07 15:10:23,901 INFO L226 Difference]: Without dead ends: 418 [2019-10-07 15:10:23,902 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 15:10:23,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2019-10-07 15:10:23,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 417. [2019-10-07 15:10:23,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2019-10-07 15:10:23,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 516 transitions. [2019-10-07 15:10:23,939 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 516 transitions. Word has length 128 [2019-10-07 15:10:23,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:23,940 INFO L462 AbstractCegarLoop]: Abstraction has 417 states and 516 transitions. [2019-10-07 15:10:23,940 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:23,940 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 516 transitions. [2019-10-07 15:10:23,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-07 15:10:23,950 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:23,950 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 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] [2019-10-07 15:10:23,950 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:23,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:23,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1570090250, now seen corresponding path program 1 times [2019-10-07 15:10:23,951 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:23,951 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:23,951 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:23,951 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:23,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:24,280 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:10:24,280 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:24,280 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:24,281 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:10:24,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:10:24,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:10:24,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:10:24,283 INFO L87 Difference]: Start difference. First operand 417 states and 516 transitions. Second operand 12 states. [2019-10-07 15:10:26,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:26,398 INFO L93 Difference]: Finished difference Result 939 states and 1153 transitions. [2019-10-07 15:10:26,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 15:10:26,399 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 211 [2019-10-07 15:10:26,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:26,407 INFO L225 Difference]: With dead ends: 939 [2019-10-07 15:10:26,410 INFO L226 Difference]: Without dead ends: 754 [2019-10-07 15:10:26,411 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-10-07 15:10:26,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2019-10-07 15:10:26,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 745. [2019-10-07 15:10:26,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2019-10-07 15:10:26,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 932 transitions. [2019-10-07 15:10:26,481 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 932 transitions. Word has length 211 [2019-10-07 15:10:26,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:26,482 INFO L462 AbstractCegarLoop]: Abstraction has 745 states and 932 transitions. [2019-10-07 15:10:26,482 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:10:26,482 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 932 transitions. [2019-10-07 15:10:26,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-07 15:10:26,487 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:26,487 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, 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] [2019-10-07 15:10:26,488 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:26,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:26,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1016670575, now seen corresponding path program 1 times [2019-10-07 15:10:26,488 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:26,488 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:26,489 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:26,489 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:26,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:26,808 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-07 15:10:26,808 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:26,808 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:26,809 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 15:10:26,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 15:10:26,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 15:10:26,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:10:26,810 INFO L87 Difference]: Start difference. First operand 745 states and 932 transitions. Second operand 10 states. [2019-10-07 15:10:27,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:27,819 INFO L93 Difference]: Finished difference Result 909 states and 1106 transitions. [2019-10-07 15:10:27,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 15:10:27,819 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 213 [2019-10-07 15:10:27,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:27,824 INFO L225 Difference]: With dead ends: 909 [2019-10-07 15:10:27,824 INFO L226 Difference]: Without dead ends: 512 [2019-10-07 15:10:27,825 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-10-07 15:10:27,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2019-10-07 15:10:27,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 510. [2019-10-07 15:10:27,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2019-10-07 15:10:27,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 651 transitions. [2019-10-07 15:10:27,862 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 651 transitions. Word has length 213 [2019-10-07 15:10:27,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:27,862 INFO L462 AbstractCegarLoop]: Abstraction has 510 states and 651 transitions. [2019-10-07 15:10:27,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 15:10:27,862 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 651 transitions. [2019-10-07 15:10:27,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-10-07 15:10:27,867 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:27,867 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:27,867 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:27,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:27,868 INFO L82 PathProgramCache]: Analyzing trace with hash -746900742, now seen corresponding path program 1 times [2019-10-07 15:10:27,868 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:27,868 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:27,868 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:27,869 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:27,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:28,139 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:10:28,139 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:28,139 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:28,140 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:28,140 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:28,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:28,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:28,141 INFO L87 Difference]: Start difference. First operand 510 states and 651 transitions. Second operand 3 states. [2019-10-07 15:10:28,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:28,177 INFO L93 Difference]: Finished difference Result 1119 states and 1506 transitions. [2019-10-07 15:10:28,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:28,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2019-10-07 15:10:28,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:28,182 INFO L225 Difference]: With dead ends: 1119 [2019-10-07 15:10:28,183 INFO L226 Difference]: Without dead ends: 665 [2019-10-07 15:10:28,184 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 15:10:28,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2019-10-07 15:10:28,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 664. [2019-10-07 15:10:28,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 664 states. [2019-10-07 15:10:28,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 911 transitions. [2019-10-07 15:10:28,220 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 911 transitions. Word has length 233 [2019-10-07 15:10:28,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:28,220 INFO L462 AbstractCegarLoop]: Abstraction has 664 states and 911 transitions. [2019-10-07 15:10:28,220 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:28,220 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 911 transitions. [2019-10-07 15:10:28,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-07 15:10:28,226 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:28,226 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:28,226 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:28,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:28,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1647493163, now seen corresponding path program 1 times [2019-10-07 15:10:28,227 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:28,227 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:28,227 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:28,227 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:28,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:28,415 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-07 15:10:28,415 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:28,415 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:28,416 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:28,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:28,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:28,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:28,418 INFO L87 Difference]: Start difference. First operand 664 states and 911 transitions. Second operand 3 states. [2019-10-07 15:10:28,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:28,477 INFO L93 Difference]: Finished difference Result 1561 states and 2254 transitions. [2019-10-07 15:10:28,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:28,477 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2019-10-07 15:10:28,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:28,486 INFO L225 Difference]: With dead ends: 1561 [2019-10-07 15:10:28,486 INFO L226 Difference]: Without dead ends: 953 [2019-10-07 15:10:28,489 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 15:10:28,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2019-10-07 15:10:28,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 952. [2019-10-07 15:10:28,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 952 states. [2019-10-07 15:10:28,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1395 transitions. [2019-10-07 15:10:28,553 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1395 transitions. Word has length 239 [2019-10-07 15:10:28,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:28,553 INFO L462 AbstractCegarLoop]: Abstraction has 952 states and 1395 transitions. [2019-10-07 15:10:28,554 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:28,554 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1395 transitions. [2019-10-07 15:10:28,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-10-07 15:10:28,561 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:28,561 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 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] [2019-10-07 15:10:28,561 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:28,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:28,562 INFO L82 PathProgramCache]: Analyzing trace with hash -470584100, now seen corresponding path program 1 times [2019-10-07 15:10:28,562 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:28,562 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:28,562 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:28,562 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:28,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:28,812 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:10:28,813 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:28,813 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:28,813 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:28,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:28,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:28,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:28,814 INFO L87 Difference]: Start difference. First operand 952 states and 1395 transitions. Second operand 3 states. [2019-10-07 15:10:28,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:28,884 INFO L93 Difference]: Finished difference Result 2401 states and 3666 transitions. [2019-10-07 15:10:28,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:28,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2019-10-07 15:10:28,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:28,894 INFO L225 Difference]: With dead ends: 2401 [2019-10-07 15:10:28,895 INFO L226 Difference]: Without dead ends: 1505 [2019-10-07 15:10:28,899 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 15:10:28,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2019-10-07 15:10:28,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1504. [2019-10-07 15:10:28,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1504 states. [2019-10-07 15:10:28,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 2315 transitions. [2019-10-07 15:10:28,982 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 2315 transitions. Word has length 235 [2019-10-07 15:10:28,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:28,983 INFO L462 AbstractCegarLoop]: Abstraction has 1504 states and 2315 transitions. [2019-10-07 15:10:28,983 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:28,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 2315 transitions. [2019-10-07 15:10:28,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-07 15:10:28,993 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:28,993 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 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] [2019-10-07 15:10:28,993 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:28,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:28,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1650430462, now seen corresponding path program 1 times [2019-10-07 15:10:28,994 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:28,994 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:28,994 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:28,994 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:28,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:29,205 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:10:29,205 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:29,205 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:29,206 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:29,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:29,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:29,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:29,207 INFO L87 Difference]: Start difference. First operand 1504 states and 2315 transitions. Second operand 3 states. [2019-10-07 15:10:29,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:29,360 INFO L93 Difference]: Finished difference Result 4009 states and 6346 transitions. [2019-10-07 15:10:29,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:29,361 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2019-10-07 15:10:29,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:29,385 INFO L225 Difference]: With dead ends: 4009 [2019-10-07 15:10:29,386 INFO L226 Difference]: Without dead ends: 2561 [2019-10-07 15:10:29,393 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 15:10:29,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2019-10-07 15:10:29,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2560. [2019-10-07 15:10:29,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2560 states. [2019-10-07 15:10:29,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 4059 transitions. [2019-10-07 15:10:29,604 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 4059 transitions. Word has length 236 [2019-10-07 15:10:29,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:29,605 INFO L462 AbstractCegarLoop]: Abstraction has 2560 states and 4059 transitions. [2019-10-07 15:10:29,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:29,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 4059 transitions. [2019-10-07 15:10:29,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-07 15:10:29,627 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:29,628 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 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] [2019-10-07 15:10:29,628 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:29,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:29,629 INFO L82 PathProgramCache]: Analyzing trace with hash 783001404, now seen corresponding path program 1 times [2019-10-07 15:10:29,629 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:29,630 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:29,630 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:29,630 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:29,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:29,958 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:10:29,958 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:29,959 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:29,959 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:29,959 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:29,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:29,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:29,960 INFO L87 Difference]: Start difference. First operand 2560 states and 4059 transitions. Second operand 3 states. [2019-10-07 15:10:30,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:30,160 INFO L93 Difference]: Finished difference Result 7209 states and 11610 transitions. [2019-10-07 15:10:30,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:30,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2019-10-07 15:10:30,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:30,193 INFO L225 Difference]: With dead ends: 7209 [2019-10-07 15:10:30,193 INFO L226 Difference]: Without dead ends: 4705 [2019-10-07 15:10:30,204 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 15:10:30,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4705 states. [2019-10-07 15:10:30,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4705 to 4704. [2019-10-07 15:10:30,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4704 states. [2019-10-07 15:10:30,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4704 states to 4704 states and 7547 transitions. [2019-10-07 15:10:30,461 INFO L78 Accepts]: Start accepts. Automaton has 4704 states and 7547 transitions. Word has length 237 [2019-10-07 15:10:30,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:30,462 INFO L462 AbstractCegarLoop]: Abstraction has 4704 states and 7547 transitions. [2019-10-07 15:10:30,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:30,462 INFO L276 IsEmpty]: Start isEmpty. Operand 4704 states and 7547 transitions. [2019-10-07 15:10:30,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-07 15:10:30,489 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:30,490 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 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] [2019-10-07 15:10:30,490 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:30,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:30,491 INFO L82 PathProgramCache]: Analyzing trace with hash 29774754, now seen corresponding path program 1 times [2019-10-07 15:10:30,491 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:30,491 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:30,491 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:30,491 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:30,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:30,709 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:10:30,709 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:30,710 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:30,710 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:30,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:30,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:30,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:30,711 INFO L87 Difference]: Start difference. First operand 4704 states and 7547 transitions. Second operand 3 states. [2019-10-07 15:10:31,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:31,086 INFO L93 Difference]: Finished difference Result 13321 states and 21562 transitions. [2019-10-07 15:10:31,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:31,087 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2019-10-07 15:10:31,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:31,145 INFO L225 Difference]: With dead ends: 13321 [2019-10-07 15:10:31,145 INFO L226 Difference]: Without dead ends: 8673 [2019-10-07 15:10:31,166 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 15:10:31,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8673 states. [2019-10-07 15:10:31,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8673 to 8672. [2019-10-07 15:10:31,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8672 states. [2019-10-07 15:10:31,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8672 states to 8672 states and 13947 transitions. [2019-10-07 15:10:31,674 INFO L78 Accepts]: Start accepts. Automaton has 8672 states and 13947 transitions. Word has length 238 [2019-10-07 15:10:31,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:31,675 INFO L462 AbstractCegarLoop]: Abstraction has 8672 states and 13947 transitions. [2019-10-07 15:10:31,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:31,675 INFO L276 IsEmpty]: Start isEmpty. Operand 8672 states and 13947 transitions. [2019-10-07 15:10:31,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-07 15:10:31,729 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:31,729 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:31,729 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:31,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:31,730 INFO L82 PathProgramCache]: Analyzing trace with hash 639273438, now seen corresponding path program 1 times [2019-10-07 15:10:31,730 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:31,730 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:31,731 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:31,731 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:31,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:32,504 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-10-07 15:10:32,505 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:32,505 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:10:32,506 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 15:10:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:33,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 3168 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:10:33,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:10:33,392 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2019-10-07 15:10:33,392 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:10:33,870 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 15:10:33,870 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:10:33,912 INFO L162 IcfgInterpreter]: Started Sifa with 190 locations of interest [2019-10-07 15:10:33,913 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:10:33,919 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:10:33,926 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:10:33,927 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:11:33,497 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 689 [2019-10-07 15:11:38,177 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 306 DAG size of output: 249 [2019-10-07 15:11:38,479 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 728 [2019-10-07 15:11:38,950 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 728 [2019-10-07 15:11:39,303 WARN L191 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 728 [2019-10-07 15:11:39,519 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 15:11:40,198 WARN L191 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 1026 [2019-10-07 15:11:40,835 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1026 [2019-10-07 15:11:41,433 WARN L191 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 1026 [2019-10-07 15:11:41,573 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 15:11:42,186 WARN L191 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 1026 [2019-10-07 15:11:43,394 WARN L191 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 1028 DAG size of output: 1026 [2019-10-07 15:11:44,000 WARN L191 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 1026 [2019-10-07 15:11:44,149 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 15:11:44,783 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 1026 [2019-10-07 15:11:45,422 WARN L191 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 1026 [2019-10-07 15:11:46,043 WARN L191 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 1026 [2019-10-07 15:11:46,170 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 15:11:46,768 WARN L191 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 1026 [2019-10-07 15:11:46,805 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 562 for LOIs [2019-10-07 15:11:47,123 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 655 [2019-10-07 15:11:47,228 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 655 [2019-10-07 15:11:47,375 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 450 [2019-10-07 15:11:47,835 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 953 [2019-10-07 15:11:47,837 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1070 for LOIs [2019-10-07 15:11:48,426 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 15:11:49,025 WARN L191 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 15:11:49,254 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 612 [2019-10-07 15:11:50,190 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1242 [2019-10-07 15:11:50,841 WARN L191 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:11:51,439 WARN L191 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:11:51,678 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:11:52,608 WARN L191 SmtUtils]: Spent 928.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:11:53,237 WARN L191 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:11:53,834 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:11:54,074 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:11:55,000 WARN L191 SmtUtils]: Spent 924.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:11:55,903 WARN L191 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 1250 DAG size of output: 1076 [2019-10-07 15:11:56,502 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:11:56,972 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:11:57,913 WARN L191 SmtUtils]: Spent 939.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:11:58,517 WARN L191 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:11:59,110 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:11:59,440 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:12:00,362 WARN L191 SmtUtils]: Spent 920.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:00,954 WARN L191 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:12:01,544 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:12:01,770 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:12:02,701 WARN L191 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:03,286 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:12:03,871 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:12:04,100 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:12:05,024 WARN L191 SmtUtils]: Spent 922.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:05,609 WARN L191 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:12:06,203 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:12:06,437 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:12:07,355 WARN L191 SmtUtils]: Spent 915.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:07,939 WARN L191 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:12:08,524 WARN L191 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:12:08,751 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:12:09,678 WARN L191 SmtUtils]: Spent 925.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:10,267 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:12:10,855 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:12:11,082 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:12:11,997 WARN L191 SmtUtils]: Spent 913.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:12,586 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:12:13,176 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:12:13,403 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:12:14,327 WARN L191 SmtUtils]: Spent 922.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:14,916 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:12:15,506 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:12:15,734 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:12:16,656 WARN L191 SmtUtils]: Spent 920.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:17,243 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:12:17,836 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 15:12:18,063 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:12:18,981 WARN L191 SmtUtils]: Spent 916.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:19,982 WARN L191 SmtUtils]: Spent 950.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:20,901 WARN L191 SmtUtils]: Spent 916.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:21,137 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:12:22,052 WARN L191 SmtUtils]: Spent 913.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:23,794 WARN L191 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 15:12:24,718 WARN L191 SmtUtils]: Spent 920.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:24,956 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:12:25,876 WARN L191 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:26,813 WARN L191 SmtUtils]: Spent 933.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:27,729 WARN L191 SmtUtils]: Spent 913.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:27,958 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:12:28,875 WARN L191 SmtUtils]: Spent 915.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:29,902 WARN L191 SmtUtils]: Spent 993.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 15:12:30,837 WARN L191 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 15:12:31,072 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 15:12:31,995 WARN L191 SmtUtils]: Spent 920.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 15:12:33,692 WARN L191 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 15:12:34,624 WARN L191 SmtUtils]: Spent 928.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 15:12:34,868 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 15:12:35,792 WARN L191 SmtUtils]: Spent 923.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 15:12:37,484 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 15:12:38,408 WARN L191 SmtUtils]: Spent 920.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 15:12:38,638 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 15:12:39,566 WARN L191 SmtUtils]: Spent 926.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 15:12:40,493 WARN L191 SmtUtils]: Spent 919.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 15:12:41,415 WARN L191 SmtUtils]: Spent 919.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 15:12:41,647 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 15:12:42,572 WARN L191 SmtUtils]: Spent 922.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 15:12:43,505 WARN L191 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 15:12:44,428 WARN L191 SmtUtils]: Spent 920.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 15:12:44,668 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 15:12:45,607 WARN L191 SmtUtils]: Spent 936.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 15:12:48,039 WARN L191 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 15:12:48,944 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:49,181 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:12:50,104 WARN L191 SmtUtils]: Spent 920.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:51,804 WARN L191 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 15:12:52,724 WARN L191 SmtUtils]: Spent 916.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:52,964 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:12:53,889 WARN L191 SmtUtils]: Spent 923.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:54,814 WARN L191 SmtUtils]: Spent 922.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:55,744 WARN L191 SmtUtils]: Spent 926.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:55,972 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:12:56,889 WARN L191 SmtUtils]: Spent 915.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:12:59,478 WARN L191 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 15:13:00,405 WARN L191 SmtUtils]: Spent 923.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:13:00,648 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:13:01,559 WARN L191 SmtUtils]: Spent 909.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:13:04,413 WARN L191 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 15:13:05,337 WARN L191 SmtUtils]: Spent 919.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:13:05,571 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:13:06,493 WARN L191 SmtUtils]: Spent 920.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:13:07,414 WARN L191 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:13:08,341 WARN L191 SmtUtils]: Spent 924.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:13:08,568 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 15:13:09,483 WARN L191 SmtUtils]: Spent 913.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 15:13:11,126 WARN L191 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 15:13:12,064 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 15:13:12,303 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 15:13:13,230 WARN L191 SmtUtils]: Spent 926.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 15:13:14,846 WARN L191 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 15:13:15,767 WARN L191 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 15:13:16,007 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 15:13:16,938 WARN L191 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 15:13:17,859 WARN L191 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 15:13:18,780 WARN L191 SmtUtils]: Spent 918.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 15:13:19,010 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 15:13:19,936 WARN L191 SmtUtils]: Spent 924.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 15:13:21,628 WARN L191 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 15:13:22,565 WARN L191 SmtUtils]: Spent 933.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 15:13:22,802 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 15:13:23,741 WARN L191 SmtUtils]: Spent 936.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 15:13:25,430 WARN L191 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 1256 DAG size of output: 1252 [2019-10-07 15:13:26,354 WARN L191 SmtUtils]: Spent 921.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 15:13:26,589 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 15:13:27,519 WARN L191 SmtUtils]: Spent 927.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 15:13:27,786 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:13:27,788 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 15:13:27,795 INFO L168 Benchmark]: Toolchain (without parser) took 192170.02 ms. Allocated memory was 145.2 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 100.3 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 645.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:27,796 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:13:27,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1060.46 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 100.1 MB in the beginning and 139.9 MB in the end (delta: -39.8 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:27,797 INFO L168 Benchmark]: Boogie Preprocessor took 210.90 ms. Allocated memory is still 203.4 MB. Free memory was 139.9 MB in the beginning and 130.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:27,797 INFO L168 Benchmark]: RCFGBuilder took 4872.96 ms. Allocated memory was 203.4 MB in the beginning and 296.7 MB in the end (delta: 93.3 MB). Free memory was 130.7 MB in the beginning and 84.6 MB in the end (delta: 46.1 MB). Peak memory consumption was 139.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:27,798 INFO L168 Benchmark]: TraceAbstraction took 186016.95 ms. Allocated memory was 296.7 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 84.6 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 478.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:27,801 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 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1060.46 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 100.1 MB in the beginning and 139.9 MB in the end (delta: -39.8 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 210.90 ms. Allocated memory is still 203.4 MB. Free memory was 139.9 MB in the beginning and 130.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4872.96 ms. Allocated memory was 203.4 MB in the beginning and 296.7 MB in the end (delta: 93.3 MB). Free memory was 130.7 MB in the beginning and 84.6 MB in the end (delta: 46.1 MB). Peak memory consumption was 139.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 186016.95 ms. Allocated memory was 296.7 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 84.6 MB in the beginning and 1.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 478.7 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...