java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:48:57,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:48:57,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:48:57,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:48:57,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:48:57,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:48:57,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:48:57,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:48:57,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:48:57,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:48:57,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:48:57,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:48:57,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:48:57,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:48:57,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:48:57,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:48:57,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:48:57,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:48:57,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:48:57,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:48:57,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:48:57,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:48:57,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:48:57,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:48:57,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:48:57,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:48:57,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:48:57,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:48:57,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:48:57,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:48:57,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:48:57,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:48:57,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:48:57,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:48:57,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:48:57,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:48:57,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:48:57,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:48:57,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:48:57,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:48:57,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:48:57,270 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 14:48:57,285 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:48:57,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:48:57,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:48:57,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:48:57,287 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:48:57,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:48:57,287 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:48:57,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:48:57,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:48:57,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:48:57,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:48:57,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:48:57,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:48:57,288 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:48:57,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:48:57,289 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:48:57,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:48:57,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:48:57,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:48:57,289 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:48:57,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:48:57,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:48:57,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:48:57,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:48:57,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:48:57,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:48:57,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:48:57,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:48:57,291 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:48:57,584 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:48:57,597 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:48:57,601 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:48:57,602 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:48:57,603 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:48:57,604 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product23.cil.c [2019-10-07 14:48:57,668 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5789c051/cb3bc9b27ca5404b84561df12febd955/FLAG5ec857a60 [2019-10-07 14:48:58,317 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:48:58,318 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product23.cil.c [2019-10-07 14:48:58,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5789c051/cb3bc9b27ca5404b84561df12febd955/FLAG5ec857a60 [2019-10-07 14:48:58,534 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5789c051/cb3bc9b27ca5404b84561df12febd955 [2019-10-07 14:48:58,545 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:48:58,546 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:48:58,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:48:58,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:48:58,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:48:58,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:48:58" (1/1) ... [2019-10-07 14:48:58,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fa637bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:58, skipping insertion in model container [2019-10-07 14:48:58,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:48:58" (1/1) ... [2019-10-07 14:48:58,564 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:48:58,644 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:48:59,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:48:59,528 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:48:59,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:48:59,743 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:48:59,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:59 WrapperNode [2019-10-07 14:48:59,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:48:59,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:48:59,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:48:59,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:48:59,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:59" (1/1) ... [2019-10-07 14:48:59,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:59" (1/1) ... [2019-10-07 14:48:59,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:59" (1/1) ... [2019-10-07 14:48:59,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:59" (1/1) ... [2019-10-07 14:48:59,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:59" (1/1) ... [2019-10-07 14:48:59,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:59" (1/1) ... [2019-10-07 14:48:59,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:59" (1/1) ... [2019-10-07 14:48:59,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:48:59,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:48:59,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:48:59,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:48:59,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:49:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:49:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:49:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:49:00,048 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:49:00,048 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:49:00,049 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:49:00,050 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:49:00,050 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:49:00,051 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:49:00,051 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:49:00,051 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:49:00,052 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:49:00,052 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:49:00,053 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:49:00,053 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:49:00,053 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:49:00,055 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:49:00,056 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:49:00,056 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:49:00,056 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:49:00,057 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:49:00,057 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:49:00,057 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:49:00,057 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 14:49:00,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:49:00,058 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:49:00,058 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:49:00,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:49:00,058 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:49:00,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:49:00,060 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:49:00,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:49:00,060 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:49:00,060 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:49:00,061 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:49:00,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:49:00,061 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:49:00,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:49:00,061 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:49:00,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:49:00,062 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:49:00,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:49:00,062 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:49:00,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:49:00,063 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:49:00,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:49:00,063 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:49:00,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:49:00,063 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:49:00,063 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:49:00,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:49:00,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:49:00,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:49:00,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:49:00,064 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:49:00,065 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:49:00,065 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 14:49:00,065 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:49:00,066 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:49:00,066 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-07 14:49:00,066 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:49:00,066 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:49:00,067 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:49:00,067 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:49:00,067 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:49:00,067 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:49:00,067 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:49:00,067 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:49:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:49:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:49:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:49:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 14:49:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:49:00,069 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:49:00,070 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:49:00,070 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:49:00,070 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:49:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:49:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:49:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:49:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:49:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:49:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:49:00,073 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:49:00,073 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:49:00,073 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:49:00,073 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:49:00,074 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:49:00,074 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:49:00,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:49:00,075 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:49:00,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:49:00,075 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:49:00,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:49:00,075 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:49:00,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:49:00,076 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:49:00,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:49:00,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:49:00,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:49:00,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:49:00,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:49:00,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:49:00,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:49:00,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:49:00,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:49:00,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:49:00,078 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 14:49:00,078 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 14:49:00,078 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:49:00,078 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:49:00,079 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:49:00,079 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:49:00,079 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:49:00,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:49:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:49:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:49:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:49:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:49:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:49:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:49:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:49:00,082 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:49:00,082 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:49:00,083 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:49:00,083 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:49:00,084 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:49:00,084 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:49:00,084 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:49:00,084 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:49:00,084 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:49:00,085 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:49:00,085 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:49:00,086 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:49:00,090 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:49:00,090 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:49:00,090 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:49:00,090 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:49:00,091 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:49:00,091 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:49:00,091 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:49:00,091 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:49:00,092 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:49:00,092 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:49:00,094 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:49:00,094 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:49:00,095 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:49:00,095 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:49:00,095 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:49:00,095 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:49:00,095 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:49:00,095 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:49:00,095 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:49:00,096 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:49:00,096 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:49:00,096 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:49:00,096 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 14:49:00,096 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:49:00,096 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:49:00,096 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:49:00,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:49:00,097 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:49:00,097 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:49:00,097 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:49:00,097 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:49:00,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:49:00,099 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:49:00,100 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:49:00,100 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:49:00,100 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:49:00,100 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:49:00,100 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:49:00,100 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:49:00,100 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:49:00,101 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:49:00,101 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:49:00,101 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:49:00,101 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:49:00,101 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:49:00,101 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:49:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:49:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:49:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:49:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:49:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:49:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:49:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:49:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:49:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:49:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:49:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:49:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:49:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:49:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:49:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:49:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:49:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:49:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:49:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:49:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:49:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 14:49:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:49:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:49:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:49:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 14:49:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-07 14:49:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:49:00,106 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:49:00,106 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:49:00,106 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:49:00,106 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:49:00,106 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:49:00,106 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:49:00,106 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:49:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:49:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:49:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:49:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:49:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:49:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:49:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:49:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:49:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:49:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:49:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:49:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:49:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:49:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:49:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:49:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:49:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:49:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:49:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:49:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:49:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:49:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:49:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:49:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:49:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 14:49:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 14:49:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:49:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:49:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:49:05,141 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:49:05,141 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:49:05,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:49:05 BoogieIcfgContainer [2019-10-07 14:49:05,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:49:05,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:49:05,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:49:05,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:49:05,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:48:58" (1/3) ... [2019-10-07 14:49:05,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447be934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:49:05, skipping insertion in model container [2019-10-07 14:49:05,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:48:59" (2/3) ... [2019-10-07 14:49:05,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447be934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:49:05, skipping insertion in model container [2019-10-07 14:49:05,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:49:05" (3/3) ... [2019-10-07 14:49:05,152 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product23.cil.c [2019-10-07 14:49:05,162 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:49:05,171 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:49:05,180 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:49:05,212 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:49:05,212 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:49:05,212 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:49:05,212 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:49:05,212 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:49:05,213 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:49:05,213 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:49:05,213 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:49:05,244 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states. [2019-10-07 14:49:05,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-07 14:49:05,263 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:05,265 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:05,267 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:05,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:05,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1832728935, now seen corresponding path program 1 times [2019-10-07 14:49:05,283 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:05,284 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:05,284 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:05,284 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:05,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:06,051 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:49:06,051 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:06,052 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:06,053 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:49:06,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:49:06,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:49:06,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:49:06,078 INFO L87 Difference]: Start difference. First operand 397 states. Second operand 2 states. [2019-10-07 14:49:06,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:06,148 INFO L93 Difference]: Finished difference Result 548 states and 649 transitions. [2019-10-07 14:49:06,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:49:06,150 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 150 [2019-10-07 14:49:06,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:06,169 INFO L225 Difference]: With dead ends: 548 [2019-10-07 14:49:06,169 INFO L226 Difference]: Without dead ends: 356 [2019-10-07 14:49:06,175 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:49:06,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-10-07 14:49:06,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2019-10-07 14:49:06,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-10-07 14:49:06,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 417 transitions. [2019-10-07 14:49:06,298 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 417 transitions. Word has length 150 [2019-10-07 14:49:06,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:06,302 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 417 transitions. [2019-10-07 14:49:06,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:49:06,302 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 417 transitions. [2019-10-07 14:49:06,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-07 14:49:06,309 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:06,309 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:06,310 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:06,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:06,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1594038799, now seen corresponding path program 1 times [2019-10-07 14:49:06,311 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:06,311 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:06,311 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:06,311 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:06,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:06,631 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:49:06,631 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:06,631 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:06,632 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:49:06,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:49:06,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:49:06,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:49:06,635 INFO L87 Difference]: Start difference. First operand 356 states and 417 transitions. Second operand 3 states. [2019-10-07 14:49:06,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:06,676 INFO L93 Difference]: Finished difference Result 533 states and 614 transitions. [2019-10-07 14:49:06,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:49:06,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2019-10-07 14:49:06,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:06,682 INFO L225 Difference]: With dead ends: 533 [2019-10-07 14:49:06,682 INFO L226 Difference]: Without dead ends: 358 [2019-10-07 14:49:06,685 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:49:06,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2019-10-07 14:49:06,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2019-10-07 14:49:06,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2019-10-07 14:49:06,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 419 transitions. [2019-10-07 14:49:06,719 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 419 transitions. Word has length 151 [2019-10-07 14:49:06,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:06,720 INFO L462 AbstractCegarLoop]: Abstraction has 358 states and 419 transitions. [2019-10-07 14:49:06,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:49:06,720 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 419 transitions. [2019-10-07 14:49:06,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-07 14:49:06,724 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:06,724 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:06,724 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:06,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:06,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1460630371, now seen corresponding path program 1 times [2019-10-07 14:49:06,725 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:06,725 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:06,725 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:06,726 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:06,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:06,963 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:49:06,964 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:06,964 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:06,964 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:49:06,966 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:49:06,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:49:06,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:49:06,967 INFO L87 Difference]: Start difference. First operand 358 states and 419 transitions. Second operand 3 states. [2019-10-07 14:49:07,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:07,048 INFO L93 Difference]: Finished difference Result 700 states and 848 transitions. [2019-10-07 14:49:07,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:49:07,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-10-07 14:49:07,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:07,057 INFO L225 Difference]: With dead ends: 700 [2019-10-07 14:49:07,058 INFO L226 Difference]: Without dead ends: 400 [2019-10-07 14:49:07,065 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:49:07,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2019-10-07 14:49:07,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 399. [2019-10-07 14:49:07,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-10-07 14:49:07,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 490 transitions. [2019-10-07 14:49:07,135 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 490 transitions. Word has length 160 [2019-10-07 14:49:07,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:07,136 INFO L462 AbstractCegarLoop]: Abstraction has 399 states and 490 transitions. [2019-10-07 14:49:07,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:49:07,137 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 490 transitions. [2019-10-07 14:49:07,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-07 14:49:07,149 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:07,150 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:07,150 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:07,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:07,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1537483248, now seen corresponding path program 1 times [2019-10-07 14:49:07,151 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:07,151 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:07,152 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:07,152 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:07,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:07,441 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:49:07,441 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:07,442 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:07,442 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:49:07,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:49:07,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:49:07,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:49:07,444 INFO L87 Difference]: Start difference. First operand 399 states and 490 transitions. Second operand 3 states. [2019-10-07 14:49:07,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:07,495 INFO L93 Difference]: Finished difference Result 820 states and 1056 transitions. [2019-10-07 14:49:07,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:49:07,496 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-10-07 14:49:07,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:07,503 INFO L225 Difference]: With dead ends: 820 [2019-10-07 14:49:07,503 INFO L226 Difference]: Without dead ends: 479 [2019-10-07 14:49:07,505 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:49:07,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2019-10-07 14:49:07,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 478. [2019-10-07 14:49:07,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2019-10-07 14:49:07,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 626 transitions. [2019-10-07 14:49:07,544 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 626 transitions. Word has length 161 [2019-10-07 14:49:07,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:07,546 INFO L462 AbstractCegarLoop]: Abstraction has 478 states and 626 transitions. [2019-10-07 14:49:07,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:49:07,547 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 626 transitions. [2019-10-07 14:49:07,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-07 14:49:07,550 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:07,551 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:07,551 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:07,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:07,551 INFO L82 PathProgramCache]: Analyzing trace with hash 770434436, now seen corresponding path program 1 times [2019-10-07 14:49:07,552 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:07,552 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:07,552 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:07,552 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:07,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:07,818 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:49:07,818 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:07,818 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:07,818 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:49:07,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:49:07,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:49:07,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:49:07,820 INFO L87 Difference]: Start difference. First operand 478 states and 626 transitions. Second operand 8 states. [2019-10-07 14:49:07,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:07,884 INFO L93 Difference]: Finished difference Result 641 states and 813 transitions. [2019-10-07 14:49:07,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:49:07,885 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 164 [2019-10-07 14:49:07,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:07,889 INFO L225 Difference]: With dead ends: 641 [2019-10-07 14:49:07,889 INFO L226 Difference]: Without dead ends: 478 [2019-10-07 14:49:07,890 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:49:07,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2019-10-07 14:49:07,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2019-10-07 14:49:07,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2019-10-07 14:49:07,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 625 transitions. [2019-10-07 14:49:07,917 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 625 transitions. Word has length 164 [2019-10-07 14:49:07,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:07,918 INFO L462 AbstractCegarLoop]: Abstraction has 478 states and 625 transitions. [2019-10-07 14:49:07,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:49:07,919 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 625 transitions. [2019-10-07 14:49:07,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-07 14:49:07,923 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:07,923 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:07,923 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:07,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:07,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1384080021, now seen corresponding path program 1 times [2019-10-07 14:49:07,924 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:07,924 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:07,925 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:07,925 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:07,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:08,932 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:49:08,933 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:08,934 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:08,934 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2019-10-07 14:49:08,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-10-07 14:49:08,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-10-07 14:49:08,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2019-10-07 14:49:08,936 INFO L87 Difference]: Start difference. First operand 478 states and 625 transitions. Second operand 29 states. [2019-10-07 14:49:21,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:21,570 INFO L93 Difference]: Finished difference Result 888 states and 1117 transitions. [2019-10-07 14:49:21,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-07 14:49:21,571 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 169 [2019-10-07 14:49:21,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:21,579 INFO L225 Difference]: With dead ends: 888 [2019-10-07 14:49:21,579 INFO L226 Difference]: Without dead ends: 717 [2019-10-07 14:49:21,581 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=275, Invalid=3031, Unknown=0, NotChecked=0, Total=3306 [2019-10-07 14:49:21,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2019-10-07 14:49:21,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 708. [2019-10-07 14:49:21,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-10-07 14:49:21,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 902 transitions. [2019-10-07 14:49:21,622 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 902 transitions. Word has length 169 [2019-10-07 14:49:21,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:21,623 INFO L462 AbstractCegarLoop]: Abstraction has 708 states and 902 transitions. [2019-10-07 14:49:21,623 INFO L463 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-10-07 14:49:21,623 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 902 transitions. [2019-10-07 14:49:21,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-07 14:49:21,627 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:21,627 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:21,628 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:21,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:21,628 INFO L82 PathProgramCache]: Analyzing trace with hash 523269876, now seen corresponding path program 1 times [2019-10-07 14:49:21,628 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:21,629 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:21,629 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:21,629 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:21,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:22,184 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:49:22,184 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:22,185 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:49:22,185 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-07 14:49:22,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-07 14:49:22,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-07 14:49:22,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:49:22,186 INFO L87 Difference]: Start difference. First operand 708 states and 902 transitions. Second operand 23 states. [2019-10-07 14:49:32,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:49:32,366 INFO L93 Difference]: Finished difference Result 1430 states and 1738 transitions. [2019-10-07 14:49:32,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-07 14:49:32,367 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 190 [2019-10-07 14:49:32,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:49:32,375 INFO L225 Difference]: With dead ends: 1430 [2019-10-07 14:49:32,375 INFO L226 Difference]: Without dead ends: 1045 [2019-10-07 14:49:32,378 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=233, Invalid=2023, Unknown=0, NotChecked=0, Total=2256 [2019-10-07 14:49:32,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2019-10-07 14:49:32,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1030. [2019-10-07 14:49:32,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1030 states. [2019-10-07 14:49:32,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1270 transitions. [2019-10-07 14:49:32,433 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1270 transitions. Word has length 190 [2019-10-07 14:49:32,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:49:32,434 INFO L462 AbstractCegarLoop]: Abstraction has 1030 states and 1270 transitions. [2019-10-07 14:49:32,434 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-07 14:49:32,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1270 transitions. [2019-10-07 14:49:32,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-07 14:49:32,439 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:49:32,439 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:49:32,440 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:49:32,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:49:32,440 INFO L82 PathProgramCache]: Analyzing trace with hash -189074485, now seen corresponding path program 1 times [2019-10-07 14:49:32,440 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:49:32,441 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:32,441 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:32,441 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:49:32,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:49:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:33,673 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 14:49:33,674 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:49:33,674 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:49:33,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:49:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:49:34,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 2904 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:49:34,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:49:34,571 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:49:34,572 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:49:35,012 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:49:35,012 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:49:35,042 INFO L162 IcfgInterpreter]: Started Sifa with 181 locations of interest [2019-10-07 14:49:35,042 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:49:35,050 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:49:35,061 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:49:35,062 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:50:22,459 WARN L191 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 676 [2019-10-07 14:50:26,984 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 294 DAG size of output: 239 [2019-10-07 14:50:27,314 WARN L191 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 714 [2019-10-07 14:50:27,668 WARN L191 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 714 [2019-10-07 14:50:27,935 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 714 [2019-10-07 14:50:28,102 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:50:28,752 WARN L191 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 1008 [2019-10-07 14:50:29,522 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1008 [2019-10-07 14:50:30,119 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1008 [2019-10-07 14:50:30,289 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:50:30,891 WARN L191 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 1008 [2019-10-07 14:50:32,043 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 1010 DAG size of output: 1008 [2019-10-07 14:50:32,648 WARN L191 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 1008 [2019-10-07 14:50:32,784 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:50:33,405 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1008 [2019-10-07 14:50:33,994 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1008 [2019-10-07 14:50:34,595 WARN L191 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 1008 [2019-10-07 14:50:34,788 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:50:35,391 WARN L191 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 1008 [2019-10-07 14:50:35,423 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 553 for LOIs [2019-10-07 14:50:35,790 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 643 [2019-10-07 14:50:36,009 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:50:36,442 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 937 [2019-10-07 14:50:36,443 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1060 for LOIs [2019-10-07 14:50:37,037 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:37,594 WARN L191 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:37,904 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:50:38,896 WARN L191 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:50:39,475 WARN L191 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:40,057 WARN L191 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:40,293 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:50:41,303 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:50:41,914 WARN L191 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:42,484 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:42,736 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:50:43,669 WARN L191 SmtUtils]: Spent 931.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:50:44,631 WARN L191 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 1254 DAG size of output: 1060 [2019-10-07 14:50:45,191 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:45,640 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 629 DAG size of output: 627 [2019-10-07 14:50:46,577 WARN L191 SmtUtils]: Spent 935.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:50:47,150 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:47,730 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:47,973 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:50:48,906 WARN L191 SmtUtils]: Spent 931.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:50:49,466 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:50,027 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:50,267 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:50:51,233 WARN L191 SmtUtils]: Spent 963.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:50:51,788 WARN L191 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:52,357 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:52,596 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:50:53,525 WARN L191 SmtUtils]: Spent 927.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:50:54,107 WARN L191 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:54,681 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:54,915 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:50:55,862 WARN L191 SmtUtils]: Spent 945.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:50:56,445 WARN L191 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:57,013 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:57,244 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:50:58,203 WARN L191 SmtUtils]: Spent 956.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:50:58,765 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:59,345 WARN L191 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:50:59,576 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:51:00,523 WARN L191 SmtUtils]: Spent 945.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:01,084 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:51:01,654 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:51:01,890 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:51:02,827 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:03,383 WARN L191 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:51:03,936 WARN L191 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:51:04,173 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:51:05,105 WARN L191 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:05,665 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:51:06,224 WARN L191 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:51:06,457 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:51:07,377 WARN L191 SmtUtils]: Spent 918.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:08,419 WARN L191 SmtUtils]: Spent 986.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:09,370 WARN L191 SmtUtils]: Spent 947.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:09,647 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:51:10,576 WARN L191 SmtUtils]: Spent 927.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:12,360 WARN L191 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:51:13,292 WARN L191 SmtUtils]: Spent 928.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:13,543 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:51:14,483 WARN L191 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:15,412 WARN L191 SmtUtils]: Spent 926.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:16,347 WARN L191 SmtUtils]: Spent 932.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:16,585 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:51:17,518 WARN L191 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:18,510 WARN L191 SmtUtils]: Spent 955.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:51:19,463 WARN L191 SmtUtils]: Spent 949.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:51:19,714 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:51:20,646 WARN L191 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:51:22,374 WARN L191 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1254 [2019-10-07 14:51:23,310 WARN L191 SmtUtils]: Spent 933.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:51:23,555 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:51:24,487 WARN L191 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:51:26,176 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1254 [2019-10-07 14:51:27,118 WARN L191 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:51:27,358 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:51:28,293 WARN L191 SmtUtils]: Spent 933.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:51:29,246 WARN L191 SmtUtils]: Spent 943.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:51:30,187 WARN L191 SmtUtils]: Spent 938.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:51:30,427 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:51:31,356 WARN L191 SmtUtils]: Spent 927.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:51:32,291 WARN L191 SmtUtils]: Spent 931.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:51:33,233 WARN L191 SmtUtils]: Spent 938.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:51:33,478 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:51:34,417 WARN L191 SmtUtils]: Spent 938.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:51:36,807 WARN L191 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:51:37,734 WARN L191 SmtUtils]: Spent 922.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:37,975 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:51:38,904 WARN L191 SmtUtils]: Spent 926.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:41,488 WARN L191 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:51:42,428 WARN L191 SmtUtils]: Spent 936.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:42,674 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:51:43,601 WARN L191 SmtUtils]: Spent 925.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:44,535 WARN L191 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:45,476 WARN L191 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:45,708 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:51:46,641 WARN L191 SmtUtils]: Spent 932.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:48,366 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:51:49,297 WARN L191 SmtUtils]: Spent 927.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:49,539 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:51:50,474 WARN L191 SmtUtils]: Spent 932.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:52,205 WARN L191 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:51:53,136 WARN L191 SmtUtils]: Spent 927.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:53,382 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:51:54,316 WARN L191 SmtUtils]: Spent 931.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:55,244 WARN L191 SmtUtils]: Spent 925.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:56,182 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:56,416 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 627 [2019-10-07 14:51:57,345 WARN L191 SmtUtils]: Spent 927.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:51:59,069 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1254 [2019-10-07 14:52:00,019 WARN L191 SmtUtils]: Spent 946.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:52:00,261 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:52:01,205 WARN L191 SmtUtils]: Spent 942.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:52:02,921 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:52:03,864 WARN L191 SmtUtils]: Spent 939.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:52:04,109 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:52:05,057 WARN L191 SmtUtils]: Spent 945.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:52:06,711 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1254 [2019-10-07 14:52:07,664 WARN L191 SmtUtils]: Spent 949.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:52:07,905 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:52:08,858 WARN L191 SmtUtils]: Spent 950.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:52:10,937 WARN L191 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 1263 DAG size of output: 1256 [2019-10-07 14:52:11,888 WARN L191 SmtUtils]: Spent 947.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:52:12,138 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:52:13,095 WARN L191 SmtUtils]: Spent 955.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:52:14,738 WARN L191 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 1265 DAG size of output: 1258 [2019-10-07 14:52:15,698 WARN L191 SmtUtils]: Spent 956.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:52:15,960 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:52:16,915 WARN L191 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:52:17,176 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:52:17,177 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:52:17,184 INFO L168 Benchmark]: Toolchain (without parser) took 198637.62 ms. Allocated memory was 145.2 MB in the beginning and 684.7 MB in the end (delta: 539.5 MB). Free memory was 100.3 MB in the beginning and 51.0 MB in the end (delta: 49.3 MB). Peak memory consumption was 588.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:52:17,185 INFO L168 Benchmark]: CDTParser took 0.23 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: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-07 14:52:17,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1196.70 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 100.1 MB in the beginning and 139.5 MB in the end (delta: -39.4 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:52:17,186 INFO L168 Benchmark]: Boogie Preprocessor took 217.86 ms. Allocated memory is still 202.9 MB. Free memory was 139.5 MB in the beginning and 130.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:52:17,187 INFO L168 Benchmark]: RCFGBuilder took 5180.29 ms. Allocated memory was 202.9 MB in the beginning and 298.3 MB in the end (delta: 95.4 MB). Free memory was 130.5 MB in the beginning and 99.6 MB in the end (delta: 30.9 MB). Peak memory consumption was 126.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:52:17,188 INFO L168 Benchmark]: TraceAbstraction took 192037.67 ms. Allocated memory was 298.3 MB in the beginning and 684.7 MB in the end (delta: 386.4 MB). Free memory was 99.6 MB in the beginning and 51.0 MB in the end (delta: 48.6 MB). Peak memory consumption was 435.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:52:17,191 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1196.70 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 100.1 MB in the beginning and 139.5 MB in the end (delta: -39.4 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 217.86 ms. Allocated memory is still 202.9 MB. Free memory was 139.5 MB in the beginning and 130.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5180.29 ms. Allocated memory was 202.9 MB in the beginning and 298.3 MB in the end (delta: 95.4 MB). Free memory was 130.5 MB in the beginning and 99.6 MB in the end (delta: 30.9 MB). Peak memory consumption was 126.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 192037.67 ms. Allocated memory was 298.3 MB in the beginning and 684.7 MB in the end (delta: 386.4 MB). Free memory was 99.6 MB in the beginning and 51.0 MB in the end (delta: 48.6 MB). Peak memory consumption was 435.0 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...