/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec9_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:26:59,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:26:59,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:26:59,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:26:59,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:26:59,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:26:59,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:26:59,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:26:59,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:26:59,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:26:59,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:26:59,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:26:59,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:26:59,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:26:59,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:26:59,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:26:59,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:26:59,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:26:59,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:26:59,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:26:59,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:26:59,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:26:59,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:26:59,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:26:59,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:26:59,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:26:59,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:26:59,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:26:59,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:26:59,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:26:59,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:26:59,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:26:59,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:26:59,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:26:59,954 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:26:59,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:26:59,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:26:59,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:26:59,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:26:59,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:26:59,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:26:59,958 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 [2019-11-07 04:26:59,971 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:26:59,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:26:59,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:26:59,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:26:59,973 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:26:59,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:26:59,974 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:26:59,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:26:59,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:26:59,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:26:59,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:26:59,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:26:59,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:26:59,975 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:26:59,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:26:59,975 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:26:59,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:26:59,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:26:59,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:26:59,976 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:26:59,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:26:59,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:26:59,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:26:59,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:26:59,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:26:59,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:26:59,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:26:59,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:26:59,978 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 [2019-11-07 04:27:00,268 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:27:00,281 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:27:00,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:27:00,287 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:27:00,287 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:27:00,288 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product21.cil.c [2019-11-07 04:27:00,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/799a9a60f/bfc5d134b64543ad8a2357a66689b4d5/FLAGa0de6b5c4 [2019-11-07 04:27:00,967 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:27:00,971 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product21.cil.c [2019-11-07 04:27:01,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/799a9a60f/bfc5d134b64543ad8a2357a66689b4d5/FLAGa0de6b5c4 [2019-11-07 04:27:01,168 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/799a9a60f/bfc5d134b64543ad8a2357a66689b4d5 [2019-11-07 04:27:01,176 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:27:01,178 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:27:01,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:27:01,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:27:01,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:27:01,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:27:01" (1/1) ... [2019-11-07 04:27:01,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26356282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:01, skipping insertion in model container [2019-11-07 04:27:01,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:27:01" (1/1) ... [2019-11-07 04:27:01,194 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:27:01,270 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:27:02,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:27:02,109 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:27:02,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:27:02,339 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:27:02,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:02 WrapperNode [2019-11-07 04:27:02,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:27:02,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:27:02,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:27:02,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:27:02,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:02" (1/1) ... [2019-11-07 04:27:02,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:02" (1/1) ... [2019-11-07 04:27:02,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:02" (1/1) ... [2019-11-07 04:27:02,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:02" (1/1) ... [2019-11-07 04:27:02,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:02" (1/1) ... [2019-11-07 04:27:02,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:02" (1/1) ... [2019-11-07 04:27:02,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:02" (1/1) ... [2019-11-07 04:27:02,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:27:02,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:27:02,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:27:02,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:27:02,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:02" (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 [2019-11-07 04:27:02,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:27:02,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:27:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:27:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:27:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:27:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-11-07 04:27:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:27:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:27:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-11-07 04:27:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 04:27:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:27:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:27:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:27:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:27:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:27:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:27:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:27:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:27:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:27:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 04:27:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:27:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:27:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:27:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:27:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:27:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:27:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:27:02,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:27:02,636 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:27:02,636 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:27:02,636 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:27:02,636 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:27:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:27:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:27:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:27:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:27:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:27:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:27:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:27:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:27:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:27:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:27:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:27:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:27:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:27:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:27:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:27:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:27:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:27:02,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:27:02,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:27:02,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:27:02,640 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:27:02,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:27:02,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:27:02,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:27:02,641 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:27:02,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:27:02,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:27:02,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:27:02,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:27:02,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:27:02,642 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:27:02,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:27:02,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:27:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:27:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:27:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:27:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:27:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:27:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:27:02,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:27:02,644 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:27:02,644 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:27:02,644 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:27:02,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:27:02,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:27:02,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:27:02,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:27:02,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:27:02,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:27:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:27:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:27:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-11-07 04:27:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-11-07 04:27:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:27:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:27:02,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:27:02,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:27:02,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:27:02,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:27:02,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:27:02,647 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:27:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:27:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:27:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:27:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:27:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:27:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:27:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:27:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:27:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:27:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:27:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:27:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:27:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 04:27:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:27:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:27:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:27:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:27:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:27:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:27:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:27:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:27:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:27:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:27:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:27:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:27:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:27:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:27:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:27:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:27:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:27:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:27:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:27:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:27:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:27:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:27:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:27:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:27:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:27:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:27:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:27:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:27:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:27:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:27:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:27:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:27:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:27:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:27:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:27:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:27:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:27:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:27:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:27:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:27:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 04:27:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:27:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-11-07 04:27:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:27:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:27:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-11-07 04:27:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-11-07 04:27:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 04:27:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-11-07 04:27:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:27:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:27:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:27:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:27:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:27:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:27:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:27:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:27:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:27:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:27:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:27:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:27:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:27:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:27:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:27:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:27:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:27:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:27:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:27:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:27:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:27:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:27:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:27:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:27:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:27:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:27:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:27:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:27:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:27:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:27:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:27:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:27:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:27:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:27:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:27:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:27:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:27:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:27:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:27:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:27:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:27:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:27:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:27:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:27:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:27:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:27:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:27:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:27:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:27:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:27:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:27:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 04:27:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:27:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:27:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:27:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:27:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:27:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:27:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:27:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:27:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:27:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:27:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:27:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:27:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:27:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:27:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:27:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:27:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:27:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:27:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:27:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:27:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:27:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:27:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:27:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:27:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:27:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:27:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:27:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:27:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:27:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:27:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:27:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:27:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:27:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:27:07,220 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:27:07,221 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:27:07,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:27:07 BoogieIcfgContainer [2019-11-07 04:27:07,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:27:07,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:27:07,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:27:07,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:27:07,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:27:01" (1/3) ... [2019-11-07 04:27:07,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492f713a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:27:07, skipping insertion in model container [2019-11-07 04:27:07,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:02" (2/3) ... [2019-11-07 04:27:07,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492f713a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:27:07, skipping insertion in model container [2019-11-07 04:27:07,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:27:07" (3/3) ... [2019-11-07 04:27:07,231 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product21.cil.c [2019-11-07 04:27:07,241 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:27:07,251 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:27:07,263 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:27:07,293 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:27:07,293 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:27:07,293 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:27:07,293 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:27:07,293 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:27:07,294 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:27:07,294 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:27:07,294 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:27:07,324 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states. [2019-11-07 04:27:07,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-11-07 04:27:07,340 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:07,341 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:07,344 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:07,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:07,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1695513081, now seen corresponding path program 1 times [2019-11-07 04:27:07,359 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:07,359 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794541141] [2019-11-07 04:27:07,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:08,162 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:27:08,163 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794541141] [2019-11-07 04:27:08,164 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:08,165 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:27:08,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31380987] [2019-11-07 04:27:08,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:27:08,175 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:08,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:27:08,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:27:08,193 INFO L87 Difference]: Start difference. First operand 396 states. Second operand 2 states. [2019-11-07 04:27:08,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:08,303 INFO L93 Difference]: Finished difference Result 574 states and 683 transitions. [2019-11-07 04:27:08,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:27:08,305 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 121 [2019-11-07 04:27:08,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:08,337 INFO L225 Difference]: With dead ends: 574 [2019-11-07 04:27:08,337 INFO L226 Difference]: Without dead ends: 369 [2019-11-07 04:27:08,347 INFO L630 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 [2019-11-07 04:27:08,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2019-11-07 04:27:08,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2019-11-07 04:27:08,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2019-11-07 04:27:08,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 436 transitions. [2019-11-07 04:27:08,457 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 436 transitions. Word has length 121 [2019-11-07 04:27:08,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:08,460 INFO L462 AbstractCegarLoop]: Abstraction has 369 states and 436 transitions. [2019-11-07 04:27:08,460 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:27:08,460 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 436 transitions. [2019-11-07 04:27:08,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-11-07 04:27:08,465 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:08,465 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:08,466 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:08,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:08,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1314460509, now seen corresponding path program 1 times [2019-11-07 04:27:08,467 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:08,467 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186885312] [2019-11-07 04:27:08,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:08,664 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:27:08,664 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186885312] [2019-11-07 04:27:08,664 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:08,665 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:08,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511158941] [2019-11-07 04:27:08,667 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:08,667 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:08,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:08,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:08,668 INFO L87 Difference]: Start difference. First operand 369 states and 436 transitions. Second operand 3 states. [2019-11-07 04:27:08,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:08,704 INFO L93 Difference]: Finished difference Result 559 states and 652 transitions. [2019-11-07 04:27:08,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:08,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2019-11-07 04:27:08,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:08,708 INFO L225 Difference]: With dead ends: 559 [2019-11-07 04:27:08,708 INFO L226 Difference]: Without dead ends: 371 [2019-11-07 04:27:08,710 INFO L630 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 [2019-11-07 04:27:08,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2019-11-07 04:27:08,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2019-11-07 04:27:08,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2019-11-07 04:27:08,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 438 transitions. [2019-11-07 04:27:08,736 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 438 transitions. Word has length 122 [2019-11-07 04:27:08,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:08,737 INFO L462 AbstractCegarLoop]: Abstraction has 371 states and 438 transitions. [2019-11-07 04:27:08,737 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:08,737 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 438 transitions. [2019-11-07 04:27:08,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-11-07 04:27:08,740 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:08,740 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:08,741 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:08,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:08,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1445351550, now seen corresponding path program 1 times [2019-11-07 04:27:08,741 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:08,741 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400059732] [2019-11-07 04:27:08,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:27:08,980 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400059732] [2019-11-07 04:27:08,980 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:08,980 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:08,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457153369] [2019-11-07 04:27:08,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:08,983 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:08,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:08,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:08,983 INFO L87 Difference]: Start difference. First operand 371 states and 438 transitions. Second operand 3 states. [2019-11-07 04:27:09,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:09,050 INFO L93 Difference]: Finished difference Result 726 states and 886 transitions. [2019-11-07 04:27:09,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:09,052 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2019-11-07 04:27:09,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:09,058 INFO L225 Difference]: With dead ends: 726 [2019-11-07 04:27:09,058 INFO L226 Difference]: Without dead ends: 413 [2019-11-07 04:27:09,060 INFO L630 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 [2019-11-07 04:27:09,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-11-07 04:27:09,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 412. [2019-11-07 04:27:09,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2019-11-07 04:27:09,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 509 transitions. [2019-11-07 04:27:09,096 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 509 transitions. Word has length 127 [2019-11-07 04:27:09,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:09,097 INFO L462 AbstractCegarLoop]: Abstraction has 412 states and 509 transitions. [2019-11-07 04:27:09,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:09,097 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 509 transitions. [2019-11-07 04:27:09,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-11-07 04:27:09,103 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:09,104 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:09,104 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:09,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:09,104 INFO L82 PathProgramCache]: Analyzing trace with hash -305888953, now seen corresponding path program 1 times [2019-11-07 04:27:09,105 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:09,105 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77723716] [2019-11-07 04:27:09,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:09,414 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:27:09,415 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77723716] [2019-11-07 04:27:09,415 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:09,415 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:09,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580182510] [2019-11-07 04:27:09,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:09,417 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:09,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:09,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:09,418 INFO L87 Difference]: Start difference. First operand 412 states and 509 transitions. Second operand 3 states. [2019-11-07 04:27:09,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:09,455 INFO L93 Difference]: Finished difference Result 652 states and 789 transitions. [2019-11-07 04:27:09,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:09,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-11-07 04:27:09,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:09,461 INFO L225 Difference]: With dead ends: 652 [2019-11-07 04:27:09,462 INFO L226 Difference]: Without dead ends: 476 [2019-11-07 04:27:09,463 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:09,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2019-11-07 04:27:09,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 475. [2019-11-07 04:27:09,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2019-11-07 04:27:09,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 582 transitions. [2019-11-07 04:27:09,498 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 582 transitions. Word has length 128 [2019-11-07 04:27:09,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:09,500 INFO L462 AbstractCegarLoop]: Abstraction has 475 states and 582 transitions. [2019-11-07 04:27:09,500 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:09,500 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 582 transitions. [2019-11-07 04:27:09,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2019-11-07 04:27:09,508 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:09,509 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:09,509 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:09,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:09,510 INFO L82 PathProgramCache]: Analyzing trace with hash 989295606, now seen corresponding path program 1 times [2019-11-07 04:27:09,510 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:09,511 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427236935] [2019-11-07 04:27:09,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:09,894 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 04:27:09,895 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427236935] [2019-11-07 04:27:09,895 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:09,895 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:27:09,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990327958] [2019-11-07 04:27:09,897 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:27:09,897 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:09,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:27:09,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:27:09,898 INFO L87 Difference]: Start difference. First operand 475 states and 582 transitions. Second operand 12 states. [2019-11-07 04:27:12,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:12,620 INFO L93 Difference]: Finished difference Result 1104 states and 1341 transitions. [2019-11-07 04:27:12,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-07 04:27:12,620 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 220 [2019-11-07 04:27:12,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:12,626 INFO L225 Difference]: With dead ends: 1104 [2019-11-07 04:27:12,626 INFO L226 Difference]: Without dead ends: 870 [2019-11-07 04:27:12,628 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-11-07 04:27:12,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2019-11-07 04:27:12,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 861. [2019-11-07 04:27:12,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2019-11-07 04:27:12,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1064 transitions. [2019-11-07 04:27:12,674 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1064 transitions. Word has length 220 [2019-11-07 04:27:12,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:12,675 INFO L462 AbstractCegarLoop]: Abstraction has 861 states and 1064 transitions. [2019-11-07 04:27:12,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 04:27:12,675 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1064 transitions. [2019-11-07 04:27:12,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-11-07 04:27:12,680 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:12,681 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:12,681 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:12,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:12,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1830361522, now seen corresponding path program 1 times [2019-11-07 04:27:12,682 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:12,682 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794440579] [2019-11-07 04:27:12,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:13,126 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-07 04:27:13,129 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794440579] [2019-11-07 04:27:13,131 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:13,131 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 04:27:13,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593197091] [2019-11-07 04:27:13,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 04:27:13,133 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:13,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 04:27:13,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-11-07 04:27:13,134 INFO L87 Difference]: Start difference. First operand 861 states and 1064 transitions. Second operand 11 states. [2019-11-07 04:27:16,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:16,610 INFO L93 Difference]: Finished difference Result 1528 states and 1828 transitions. [2019-11-07 04:27:16,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 04:27:16,611 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 222 [2019-11-07 04:27:16,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:16,619 INFO L225 Difference]: With dead ends: 1528 [2019-11-07 04:27:16,619 INFO L226 Difference]: Without dead ends: 1137 [2019-11-07 04:27:16,621 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:27:16,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2019-11-07 04:27:16,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1126. [2019-11-07 04:27:16,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2019-11-07 04:27:16,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1369 transitions. [2019-11-07 04:27:16,683 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1369 transitions. Word has length 222 [2019-11-07 04:27:16,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:16,684 INFO L462 AbstractCegarLoop]: Abstraction has 1126 states and 1369 transitions. [2019-11-07 04:27:16,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 04:27:16,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1369 transitions. [2019-11-07 04:27:16,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2019-11-07 04:27:16,690 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:16,690 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:16,691 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:16,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:16,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1144993830, now seen corresponding path program 1 times [2019-11-07 04:27:16,691 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:16,692 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385876625] [2019-11-07 04:27:16,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:16,987 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 04:27:16,987 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385876625] [2019-11-07 04:27:16,987 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:16,988 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:16,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63670097] [2019-11-07 04:27:16,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:16,989 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:16,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:16,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:16,990 INFO L87 Difference]: Start difference. First operand 1126 states and 1369 transitions. Second operand 3 states. [2019-11-07 04:27:17,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:17,056 INFO L93 Difference]: Finished difference Result 2358 states and 2959 transitions. [2019-11-07 04:27:17,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:17,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 242 [2019-11-07 04:27:17,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:17,065 INFO L225 Difference]: With dead ends: 2358 [2019-11-07 04:27:17,065 INFO L226 Difference]: Without dead ends: 1290 [2019-11-07 04:27:17,069 INFO L630 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 [2019-11-07 04:27:17,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2019-11-07 04:27:17,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1288. [2019-11-07 04:27:17,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1288 states. [2019-11-07 04:27:17,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1647 transitions. [2019-11-07 04:27:17,142 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1647 transitions. Word has length 242 [2019-11-07 04:27:17,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:17,142 INFO L462 AbstractCegarLoop]: Abstraction has 1288 states and 1647 transitions. [2019-11-07 04:27:17,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:17,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1647 transitions. [2019-11-07 04:27:17,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-11-07 04:27:17,149 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:17,149 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:17,150 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:17,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:17,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1845417953, now seen corresponding path program 1 times [2019-11-07 04:27:17,150 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:17,151 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245317243] [2019-11-07 04:27:17,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:17,350 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 04:27:17,350 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245317243] [2019-11-07 04:27:17,350 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:17,350 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:17,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811931426] [2019-11-07 04:27:17,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:17,352 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:17,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:17,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:17,352 INFO L87 Difference]: Start difference. First operand 1288 states and 1647 transitions. Second operand 3 states. [2019-11-07 04:27:17,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:17,443 INFO L93 Difference]: Finished difference Result 2824 states and 3761 transitions. [2019-11-07 04:27:17,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:17,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2019-11-07 04:27:17,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:17,454 INFO L225 Difference]: With dead ends: 2824 [2019-11-07 04:27:17,454 INFO L226 Difference]: Without dead ends: 1594 [2019-11-07 04:27:17,459 INFO L630 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 [2019-11-07 04:27:17,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1594 states. [2019-11-07 04:27:17,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1594 to 1592. [2019-11-07 04:27:17,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1592 states. [2019-11-07 04:27:17,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 2167 transitions. [2019-11-07 04:27:17,560 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 2167 transitions. Word has length 243 [2019-11-07 04:27:17,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:17,561 INFO L462 AbstractCegarLoop]: Abstraction has 1592 states and 2167 transitions. [2019-11-07 04:27:17,561 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:17,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 2167 transitions. [2019-11-07 04:27:17,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-11-07 04:27:17,569 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:17,570 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:17,570 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:17,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:17,570 INFO L82 PathProgramCache]: Analyzing trace with hash 578287844, now seen corresponding path program 1 times [2019-11-07 04:27:17,571 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:17,571 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106565355] [2019-11-07 04:27:17,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:17,834 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 04:27:17,835 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106565355] [2019-11-07 04:27:17,835 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:17,836 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:17,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150322772] [2019-11-07 04:27:17,838 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:17,838 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:17,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:17,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:17,839 INFO L87 Difference]: Start difference. First operand 1592 states and 2167 transitions. Second operand 3 states. [2019-11-07 04:27:17,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:17,975 INFO L93 Difference]: Finished difference Result 3712 states and 5281 transitions. [2019-11-07 04:27:17,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:17,976 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2019-11-07 04:27:17,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:17,999 INFO L225 Difference]: With dead ends: 3712 [2019-11-07 04:27:17,999 INFO L226 Difference]: Without dead ends: 2178 [2019-11-07 04:27:18,007 INFO L630 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 [2019-11-07 04:27:18,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2178 states. [2019-11-07 04:27:18,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2178 to 2176. [2019-11-07 04:27:18,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2176 states. [2019-11-07 04:27:18,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 3159 transitions. [2019-11-07 04:27:18,229 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 3159 transitions. Word has length 244 [2019-11-07 04:27:18,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:18,232 INFO L462 AbstractCegarLoop]: Abstraction has 2176 states and 3159 transitions. [2019-11-07 04:27:18,232 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:18,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 3159 transitions. [2019-11-07 04:27:18,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-11-07 04:27:18,250 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:18,250 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:18,250 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:18,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:18,251 INFO L82 PathProgramCache]: Analyzing trace with hash -218137119, now seen corresponding path program 1 times [2019-11-07 04:27:18,251 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:18,251 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925950300] [2019-11-07 04:27:18,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:18,531 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 04:27:18,531 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925950300] [2019-11-07 04:27:18,532 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:18,533 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:18,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907135356] [2019-11-07 04:27:18,534 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:18,535 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:18,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:18,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:18,535 INFO L87 Difference]: Start difference. First operand 2176 states and 3159 transitions. Second operand 3 states. [2019-11-07 04:27:18,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:18,713 INFO L93 Difference]: Finished difference Result 5416 states and 8177 transitions. [2019-11-07 04:27:18,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:18,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 245 [2019-11-07 04:27:18,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:18,742 INFO L225 Difference]: With dead ends: 5416 [2019-11-07 04:27:18,743 INFO L226 Difference]: Without dead ends: 3298 [2019-11-07 04:27:18,756 INFO L630 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 [2019-11-07 04:27:18,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3298 states. [2019-11-07 04:27:19,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3298 to 3296. [2019-11-07 04:27:19,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3296 states. [2019-11-07 04:27:19,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3296 states to 3296 states and 5047 transitions. [2019-11-07 04:27:19,060 INFO L78 Accepts]: Start accepts. Automaton has 3296 states and 5047 transitions. Word has length 245 [2019-11-07 04:27:19,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:19,060 INFO L462 AbstractCegarLoop]: Abstraction has 3296 states and 5047 transitions. [2019-11-07 04:27:19,060 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:19,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3296 states and 5047 transitions. [2019-11-07 04:27:19,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2019-11-07 04:27:19,082 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:19,082 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:19,082 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:19,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:19,083 INFO L82 PathProgramCache]: Analyzing trace with hash -281901995, now seen corresponding path program 1 times [2019-11-07 04:27:19,083 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:19,083 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775409146] [2019-11-07 04:27:19,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:19,262 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-11-07 04:27:19,263 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775409146] [2019-11-07 04:27:19,263 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:19,263 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:19,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618643419] [2019-11-07 04:27:19,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:19,264 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:19,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:19,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:19,265 INFO L87 Difference]: Start difference. First operand 3296 states and 5047 transitions. Second operand 3 states. [2019-11-07 04:27:19,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:19,542 INFO L93 Difference]: Finished difference Result 8680 states and 13681 transitions. [2019-11-07 04:27:19,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:19,542 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 251 [2019-11-07 04:27:19,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:19,581 INFO L225 Difference]: With dead ends: 8680 [2019-11-07 04:27:19,581 INFO L226 Difference]: Without dead ends: 5442 [2019-11-07 04:27:19,594 INFO L630 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 [2019-11-07 04:27:19,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5442 states. [2019-11-07 04:27:19,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5442 to 5440. [2019-11-07 04:27:19,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5440 states. [2019-11-07 04:27:19,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 8631 transitions. [2019-11-07 04:27:19,906 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 8631 transitions. Word has length 251 [2019-11-07 04:27:19,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:19,907 INFO L462 AbstractCegarLoop]: Abstraction has 5440 states and 8631 transitions. [2019-11-07 04:27:19,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:19,907 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 8631 transitions. [2019-11-07 04:27:19,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-11-07 04:27:19,938 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:19,939 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:19,939 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:19,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:19,939 INFO L82 PathProgramCache]: Analyzing trace with hash 103615457, now seen corresponding path program 1 times [2019-11-07 04:27:19,940 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:19,940 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390549636] [2019-11-07 04:27:19,940 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:20,241 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 04:27:20,241 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390549636] [2019-11-07 04:27:20,242 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:20,242 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:20,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921982689] [2019-11-07 04:27:20,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:20,243 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:20,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:20,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:20,244 INFO L87 Difference]: Start difference. First operand 5440 states and 8631 transitions. Second operand 3 states. [2019-11-07 04:27:20,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:20,690 INFO L93 Difference]: Finished difference Result 14920 states and 24113 transitions. [2019-11-07 04:27:20,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:20,691 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2019-11-07 04:27:20,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:20,783 INFO L225 Difference]: With dead ends: 14920 [2019-11-07 04:27:20,783 INFO L226 Difference]: Without dead ends: 9538 [2019-11-07 04:27:20,804 INFO L630 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 [2019-11-07 04:27:20,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9538 states. [2019-11-07 04:27:21,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9538 to 9536. [2019-11-07 04:27:21,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9536 states. [2019-11-07 04:27:21,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9536 states to 9536 states and 15415 transitions. [2019-11-07 04:27:21,474 INFO L78 Accepts]: Start accepts. Automaton has 9536 states and 15415 transitions. Word has length 247 [2019-11-07 04:27:21,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:21,474 INFO L462 AbstractCegarLoop]: Abstraction has 9536 states and 15415 transitions. [2019-11-07 04:27:21,475 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:21,475 INFO L276 IsEmpty]: Start isEmpty. Operand 9536 states and 15415 transitions. [2019-11-07 04:27:21,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-11-07 04:27:21,533 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:21,533 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:21,533 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:21,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:21,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1629168412, now seen corresponding path program 1 times [2019-11-07 04:27:21,534 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:21,534 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135041533] [2019-11-07 04:27:21,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:22,234 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-11-07 04:27:22,235 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135041533] [2019-11-07 04:27:22,235 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739920980] [2019-11-07 04:27:22,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:27:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:22,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 3450 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:27:23,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:27:23,207 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2019-11-07 04:27:23,208 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:27:23,730 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 04:27:23,730 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1648039836] [2019-11-07 04:27:23,771 INFO L159 IcfgInterpreter]: Started Sifa with 199 locations of interest [2019-11-07 04:27:23,772 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:27:23,779 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:27:23,786 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:27:23,787 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs