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_spec4_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:14:59,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:14:59,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:14:59,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:14:59,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:14:59,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:14:59,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:14:59,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:14:59,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:14:59,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:14:59,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:14:59,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:14:59,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:14:59,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:14:59,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:14:59,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:14:59,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:14:59,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:14:59,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:14:59,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:14:59,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:14:59,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:14:59,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:14:59,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:14:59,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:14:59,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:14:59,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:14:59,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:14:59,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:14:59,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:14:59,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:14:59,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:14:59,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:14:59,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:14:59,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:14:59,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:14:59,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:14:59,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:14:59,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:14:59,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:14:59,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:14:59,938 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:14:59,958 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:14:59,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:14:59,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:14:59,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:14:59,961 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:14:59,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:14:59,962 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:14:59,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:14:59,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:14:59,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:14:59,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:14:59,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:14:59,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:14:59,965 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:14:59,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:14:59,965 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:14:59,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:14:59,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:14:59,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:14:59,966 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:14:59,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:14:59,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:14:59,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:14:59,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:14:59,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:14:59,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:14:59,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:14:59,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:14:59,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:15:00,300 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:15:00,318 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:15:00,325 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:15:00,327 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:15:00,327 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:15:00,328 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product23.cil.c [2019-10-15 03:15:00,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7ac7b672/2708a577359c43238485092ab28cd33d/FLAGbf6379836 [2019-10-15 03:15:01,023 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:15:01,025 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product23.cil.c [2019-10-15 03:15:01,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7ac7b672/2708a577359c43238485092ab28cd33d/FLAGbf6379836 [2019-10-15 03:15:01,212 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7ac7b672/2708a577359c43238485092ab28cd33d [2019-10-15 03:15:01,224 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:15:01,226 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:15:01,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:01,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:15:01,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:15:01,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:01" (1/1) ... [2019-10-15 03:15:01,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6608a0f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:01, skipping insertion in model container [2019-10-15 03:15:01,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:01" (1/1) ... [2019-10-15 03:15:01,247 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:15:01,334 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:15:02,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:02,178 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:15:02,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:02,442 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:15:02,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:02 WrapperNode [2019-10-15 03:15:02,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:02,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:15:02,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:15:02,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:15:02,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:02" (1/1) ... [2019-10-15 03:15:02,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:02" (1/1) ... [2019-10-15 03:15:02,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:02" (1/1) ... [2019-10-15 03:15:02,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:02" (1/1) ... [2019-10-15 03:15:02,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:02" (1/1) ... [2019-10-15 03:15:02,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:02" (1/1) ... [2019-10-15 03:15:02,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:02" (1/1) ... [2019-10-15 03:15:02,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:15:02,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:15:02,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:15:02,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:15:02,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:02" (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 [2019-10-15 03:15:02,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:15:02,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:15:02,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:02,741 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:15:02,741 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:15:02,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:15:02,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:15:02,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:15:02,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:15:02,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:15:02,744 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:15:02,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:15:02,746 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:15:02,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:15:02,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:15:02,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:15:02,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:15:02,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:15:02,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:15:02,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:15:02,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:15:02,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:15:02,752 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:15:02,752 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:15:02,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:15:02,752 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:15:02,752 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:15:02,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:15:02,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:15:02,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:15:02,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:15:02,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:15:02,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:02,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:02,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:02,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:15:02,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:15:02,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:15:02,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-15 03:15:02,756 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:15:02,756 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 03:15:02,756 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 03:15:02,756 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:15:02,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:15:02,757 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:15:02,757 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:15:02,757 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:15:02,757 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:15:02,758 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 03:15:02,758 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:15:02,758 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:15:02,758 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-15 03:15:02,758 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:15:02,758 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:15:02,759 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:15:02,759 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:15:02,759 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:15:02,759 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:15:02,759 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:15:02,760 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:15:02,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:15:02,761 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:15:02,761 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:15:02,761 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:15:02,761 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:15:02,761 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:15:02,762 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:15:02,762 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:15:02,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:15:02,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:15:02,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:15:02,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:15:02,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:15:02,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:15:02,764 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:15:02,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:15:02,765 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:15:02,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:15:02,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:15:02,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:15:02,765 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:15:02,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:15:02,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:15:02,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:15:02,767 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:15:02,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:15:02,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:15:02,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:15:02,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:15:02,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:15:02,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:02,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:15:02,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:02,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:15:02,769 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:15:02,769 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:15:02,770 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:15:02,770 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:15:02,770 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:15:02,770 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:15:02,770 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:15:02,770 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:15:02,770 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:15:02,771 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:15:02,771 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:15:02,771 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:15:02,771 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:15:02,771 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:15:02,772 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:15:02,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:15:02,772 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:15:02,772 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:15:02,772 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:15:02,772 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:15:02,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:15:02,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:15:02,773 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:15:02,774 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:15:02,774 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:15:02,774 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:15:02,774 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:15:02,774 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:15:02,775 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:15:02,775 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:15:02,776 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:15:02,776 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:15:02,776 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:15:02,776 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:15:02,776 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:15:02,776 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:15:02,776 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:15:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:15:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:15:02,778 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:15:02,784 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:15:02,784 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:15:02,785 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:15:02,785 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:15:02,786 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:15:02,786 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:15:02,786 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:15:02,786 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:15:02,786 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:15:02,787 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:15:02,793 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:15:02,794 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:15:02,794 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:15:02,794 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:15:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:15:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:15:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:15:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:15:02,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:02,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:15:02,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:02,796 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:02,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:15:02,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:15:02,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:15:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:15:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:15:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:15:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:15:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:15:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-15 03:15:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:15:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:15:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:15:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:15:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:15:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:15:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:15:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:15:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:15:02,799 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:15:02,799 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:15:02,799 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:15:02,799 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:15:02,799 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 03:15:02,799 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 03:15:02,799 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:15:02,799 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:15:02,800 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:15:02,800 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:15:02,800 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:15:02,800 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:15:02,800 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:15:02,800 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:15:02,800 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:15:02,800 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:15:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:15:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:15:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:15:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:15:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:15:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:15:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:15:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:15:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:15:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:15:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 03:15:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-15 03:15:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:15:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:15:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:15:02,803 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:15:02,803 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:15:02,803 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:15:02,803 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:15:02,803 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:15:02,803 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:15:02,803 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:15:02,803 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:15:02,804 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:15:02,804 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:15:02,804 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:15:02,804 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:15:02,804 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:15:02,804 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:15:02,804 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:15:02,804 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:15:02,805 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:15:02,805 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:15:02,805 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:15:02,805 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:15:02,805 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:15:02,805 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:15:02,805 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:15:02,805 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:15:02,806 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:15:02,806 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:15:02,806 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:15:02,806 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:15:02,806 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:15:02,806 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:15:02,806 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:15:02,806 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:02,807 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:02,807 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:15:02,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:15:02,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:15:02,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:15:07,293 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:15:07,294 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:15:07,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:07 BoogieIcfgContainer [2019-10-15 03:15:07,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:15:07,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:15:07,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:15:07,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:15:07,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:15:01" (1/3) ... [2019-10-15 03:15:07,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4403c9b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:07, skipping insertion in model container [2019-10-15 03:15:07,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:02" (2/3) ... [2019-10-15 03:15:07,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4403c9b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:07, skipping insertion in model container [2019-10-15 03:15:07,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:07" (3/3) ... [2019-10-15 03:15:07,306 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product23.cil.c [2019-10-15 03:15:07,316 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:15:07,327 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:15:07,340 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:15:07,373 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:15:07,373 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:15:07,373 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:15:07,374 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:15:07,374 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:15:07,374 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:15:07,374 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:15:07,374 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:15:07,406 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states. [2019-10-15 03:15:07,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-15 03:15:07,422 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:07,423 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:07,425 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:07,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:07,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1717240347, now seen corresponding path program 1 times [2019-10-15 03:15:07,441 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:07,442 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213465993] [2019-10-15 03:15:07,442 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:07,443 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:07,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:08,110 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:08,110 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213465993] [2019-10-15 03:15:08,112 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:08,112 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:15:08,113 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010102192] [2019-10-15 03:15:08,120 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:15:08,121 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:08,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:15:08,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:08,138 INFO L87 Difference]: Start difference. First operand 395 states. Second operand 2 states. [2019-10-15 03:15:08,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:08,215 INFO L93 Difference]: Finished difference Result 540 states and 637 transitions. [2019-10-15 03:15:08,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:15:08,217 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 125 [2019-10-15 03:15:08,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:08,243 INFO L225 Difference]: With dead ends: 540 [2019-10-15 03:15:08,244 INFO L226 Difference]: Without dead ends: 352 [2019-10-15 03:15:08,255 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:08,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2019-10-15 03:15:08,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2019-10-15 03:15:08,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2019-10-15 03:15:08,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 413 transitions. [2019-10-15 03:15:08,350 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 413 transitions. Word has length 125 [2019-10-15 03:15:08,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:08,355 INFO L462 AbstractCegarLoop]: Abstraction has 352 states and 413 transitions. [2019-10-15 03:15:08,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:15:08,356 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 413 transitions. [2019-10-15 03:15:08,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-15 03:15:08,361 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:08,362 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:08,362 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:08,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:08,362 INFO L82 PathProgramCache]: Analyzing trace with hash -749071762, now seen corresponding path program 1 times [2019-10-15 03:15:08,363 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:08,363 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400037912] [2019-10-15 03:15:08,363 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:08,363 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:08,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:08,581 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:08,581 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400037912] [2019-10-15 03:15:08,581 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:08,582 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:08,582 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645948626] [2019-10-15 03:15:08,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:08,587 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:08,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:08,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:08,587 INFO L87 Difference]: Start difference. First operand 352 states and 413 transitions. Second operand 3 states. [2019-10-15 03:15:08,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:08,655 INFO L93 Difference]: Finished difference Result 525 states and 606 transitions. [2019-10-15 03:15:08,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:08,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-15 03:15:08,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:08,661 INFO L225 Difference]: With dead ends: 525 [2019-10-15 03:15:08,661 INFO L226 Difference]: Without dead ends: 354 [2019-10-15 03:15:08,663 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:08,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2019-10-15 03:15:08,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2019-10-15 03:15:08,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2019-10-15 03:15:08,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 415 transitions. [2019-10-15 03:15:08,708 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 415 transitions. Word has length 126 [2019-10-15 03:15:08,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:08,709 INFO L462 AbstractCegarLoop]: Abstraction has 354 states and 415 transitions. [2019-10-15 03:15:08,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:08,711 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 415 transitions. [2019-10-15 03:15:08,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-15 03:15:08,718 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:08,718 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:15:08,719 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:08,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:08,719 INFO L82 PathProgramCache]: Analyzing trace with hash 825851507, now seen corresponding path program 1 times [2019-10-15 03:15:08,723 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:08,723 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967612409] [2019-10-15 03:15:08,723 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:08,724 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:08,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:09,021 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:09,021 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967612409] [2019-10-15 03:15:09,021 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:09,021 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:09,022 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590286414] [2019-10-15 03:15:09,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:09,023 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:09,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:09,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:09,023 INFO L87 Difference]: Start difference. First operand 354 states and 415 transitions. Second operand 3 states. [2019-10-15 03:15:09,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:09,062 INFO L93 Difference]: Finished difference Result 692 states and 840 transitions. [2019-10-15 03:15:09,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:09,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-10-15 03:15:09,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:09,068 INFO L225 Difference]: With dead ends: 692 [2019-10-15 03:15:09,070 INFO L226 Difference]: Without dead ends: 396 [2019-10-15 03:15:09,072 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:09,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2019-10-15 03:15:09,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 395. [2019-10-15 03:15:09,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2019-10-15 03:15:09,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 486 transitions. [2019-10-15 03:15:09,115 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 486 transitions. Word has length 135 [2019-10-15 03:15:09,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:09,117 INFO L462 AbstractCegarLoop]: Abstraction has 395 states and 486 transitions. [2019-10-15 03:15:09,117 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:09,118 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 486 transitions. [2019-10-15 03:15:09,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-15 03:15:09,124 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:09,124 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:15:09,124 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:09,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:09,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1322258251, now seen corresponding path program 1 times [2019-10-15 03:15:09,125 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:09,125 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469390688] [2019-10-15 03:15:09,125 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:09,125 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:09,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:09,313 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:09,313 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469390688] [2019-10-15 03:15:09,314 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:09,316 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:09,316 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096651504] [2019-10-15 03:15:09,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:09,317 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:09,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:09,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:09,318 INFO L87 Difference]: Start difference. First operand 395 states and 486 transitions. Second operand 3 states. [2019-10-15 03:15:09,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:09,363 INFO L93 Difference]: Finished difference Result 812 states and 1048 transitions. [2019-10-15 03:15:09,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:09,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2019-10-15 03:15:09,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:09,371 INFO L225 Difference]: With dead ends: 812 [2019-10-15 03:15:09,371 INFO L226 Difference]: Without dead ends: 475 [2019-10-15 03:15:09,372 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:09,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2019-10-15 03:15:09,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 474. [2019-10-15 03:15:09,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2019-10-15 03:15:09,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 622 transitions. [2019-10-15 03:15:09,421 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 622 transitions. Word has length 136 [2019-10-15 03:15:09,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:09,422 INFO L462 AbstractCegarLoop]: Abstraction has 474 states and 622 transitions. [2019-10-15 03:15:09,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:09,423 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 622 transitions. [2019-10-15 03:15:09,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-15 03:15:09,436 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:09,436 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:15:09,436 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:09,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:09,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1071293799, now seen corresponding path program 1 times [2019-10-15 03:15:09,437 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:09,438 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649196978] [2019-10-15 03:15:09,438 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:09,439 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:09,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:10,096 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:15:10,096 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649196978] [2019-10-15 03:15:10,097 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:10,097 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-15 03:15:10,097 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440839559] [2019-10-15 03:15:10,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-15 03:15:10,098 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:10,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-15 03:15:10,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2019-10-15 03:15:10,100 INFO L87 Difference]: Start difference. First operand 474 states and 622 transitions. Second operand 21 states. [2019-10-15 03:15:17,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:17,715 INFO L93 Difference]: Finished difference Result 842 states and 1049 transitions. [2019-10-15 03:15:17,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-15 03:15:17,716 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 139 [2019-10-15 03:15:17,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:17,723 INFO L225 Difference]: With dead ends: 842 [2019-10-15 03:15:17,723 INFO L226 Difference]: Without dead ends: 677 [2019-10-15 03:15:17,725 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2019-10-15 03:15:17,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2019-10-15 03:15:17,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 668. [2019-10-15 03:15:17,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2019-10-15 03:15:17,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 850 transitions. [2019-10-15 03:15:17,766 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 850 transitions. Word has length 139 [2019-10-15 03:15:17,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:17,767 INFO L462 AbstractCegarLoop]: Abstraction has 668 states and 850 transitions. [2019-10-15 03:15:17,767 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-15 03:15:17,767 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 850 transitions. [2019-10-15 03:15:17,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-15 03:15:17,770 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:17,770 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:15:17,771 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:17,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:17,771 INFO L82 PathProgramCache]: Analyzing trace with hash 793869072, now seen corresponding path program 1 times [2019-10-15 03:15:17,771 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:17,771 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777434753] [2019-10-15 03:15:17,772 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:17,772 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:17,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:18,414 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:15:18,414 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777434753] [2019-10-15 03:15:18,416 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:18,416 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-15 03:15:18,416 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581326432] [2019-10-15 03:15:18,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-15 03:15:18,417 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:18,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-15 03:15:18,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2019-10-15 03:15:18,418 INFO L87 Difference]: Start difference. First operand 668 states and 850 transitions. Second operand 23 states. [2019-10-15 03:15:20,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:20,424 INFO L93 Difference]: Finished difference Result 746 states and 936 transitions. [2019-10-15 03:15:20,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-15 03:15:20,425 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 145 [2019-10-15 03:15:20,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:20,431 INFO L225 Difference]: With dead ends: 746 [2019-10-15 03:15:20,431 INFO L226 Difference]: Without dead ends: 739 [2019-10-15 03:15:20,433 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 03:15:20,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2019-10-15 03:15:20,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 732. [2019-10-15 03:15:20,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2019-10-15 03:15:20,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 921 transitions. [2019-10-15 03:15:20,479 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 921 transitions. Word has length 145 [2019-10-15 03:15:20,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:20,480 INFO L462 AbstractCegarLoop]: Abstraction has 732 states and 921 transitions. [2019-10-15 03:15:20,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-15 03:15:20,480 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 921 transitions. [2019-10-15 03:15:20,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-15 03:15:20,485 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:20,485 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 03:15:20,486 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:20,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:20,486 INFO L82 PathProgramCache]: Analyzing trace with hash -453109432, now seen corresponding path program 1 times [2019-10-15 03:15:20,486 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:20,487 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547215228] [2019-10-15 03:15:20,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:20,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:20,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:20,824 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 03:15:20,824 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547215228] [2019-10-15 03:15:20,824 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:20,825 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 03:15:20,825 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218688531] [2019-10-15 03:15:20,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 03:15:20,827 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:20,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 03:15:20,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:15:20,828 INFO L87 Difference]: Start difference. First operand 732 states and 921 transitions. Second operand 8 states. [2019-10-15 03:15:20,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:20,896 INFO L93 Difference]: Finished difference Result 1115 states and 1365 transitions. [2019-10-15 03:15:20,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:15:20,897 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 234 [2019-10-15 03:15:20,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:20,902 INFO L225 Difference]: With dead ends: 1115 [2019-10-15 03:15:20,902 INFO L226 Difference]: Without dead ends: 732 [2019-10-15 03:15:20,904 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:15:20,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2019-10-15 03:15:20,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2019-10-15 03:15:20,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 732 states. [2019-10-15 03:15:20,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 919 transitions. [2019-10-15 03:15:20,947 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 919 transitions. Word has length 234 [2019-10-15 03:15:20,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:20,948 INFO L462 AbstractCegarLoop]: Abstraction has 732 states and 919 transitions. [2019-10-15 03:15:20,949 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 03:15:20,949 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 919 transitions. [2019-10-15 03:15:20,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-15 03:15:20,955 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:20,955 INFO L380 BasicCegarLoop]: trace histogram [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, 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] [2019-10-15 03:15:20,955 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:20,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:20,956 INFO L82 PathProgramCache]: Analyzing trace with hash -473744878, now seen corresponding path program 1 times [2019-10-15 03:15:20,956 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:20,956 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858326127] [2019-10-15 03:15:20,956 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:20,957 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:20,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:21,255 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 03:15:21,255 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858326127] [2019-10-15 03:15:21,256 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:21,256 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 03:15:21,256 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321509088] [2019-10-15 03:15:21,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 03:15:21,257 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:21,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 03:15:21,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-15 03:15:21,258 INFO L87 Difference]: Start difference. First operand 732 states and 919 transitions. Second operand 11 states. [2019-10-15 03:15:23,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:23,923 INFO L93 Difference]: Finished difference Result 1298 states and 1547 transitions. [2019-10-15 03:15:23,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:15:23,924 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 239 [2019-10-15 03:15:23,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:23,932 INFO L225 Difference]: With dead ends: 1298 [2019-10-15 03:15:23,932 INFO L226 Difference]: Without dead ends: 987 [2019-10-15 03:15:23,934 INFO L600 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 [2019-10-15 03:15:23,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2019-10-15 03:15:24,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 965. [2019-10-15 03:15:24,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2019-10-15 03:15:24,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1174 transitions. [2019-10-15 03:15:24,006 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1174 transitions. Word has length 239 [2019-10-15 03:15:24,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:24,008 INFO L462 AbstractCegarLoop]: Abstraction has 965 states and 1174 transitions. [2019-10-15 03:15:24,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 03:15:24,008 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1174 transitions. [2019-10-15 03:15:24,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-10-15 03:15:24,014 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:24,015 INFO L380 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:24,015 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:24,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:24,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1630958948, now seen corresponding path program 1 times [2019-10-15 03:15:24,016 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:24,016 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143432307] [2019-10-15 03:15:24,016 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:24,016 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:24,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:25,210 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 03:15:25,211 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143432307] [2019-10-15 03:15:25,211 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039168880] [2019-10-15 03:15:25,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:15:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:25,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 3239 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:15:25,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:15:26,072 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2019-10-15 03:15:26,074 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:15:26,742 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 03:15:26,742 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1498609321] [2019-10-15 03:15:26,773 INFO L162 IcfgInterpreter]: Started Sifa with 201 locations of interest [2019-10-15 03:15:26,774 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:15:26,782 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:15:26,789 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:15:26,789 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs